September 2019 - Warm End of September

General Weather Discussions and Analysis
Post Reply
Andrew
Site Admin
Site Admin
Posts: 3438
Joined: Wed Feb 03, 2010 9:46 pm
Location: North-West Houston
Contact:

Pretty amazing how symmetrical the system is and how warm it is in the middle of the eye. An incredible amount of sinking air occurring.
Attachments
COD-GOES-East-local-Gulf_Stream.10.20190901.164115-over=latlon-map-bars=.gif
For Your Infinite Source For All Things Weather Visit Our Facebook
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

Hurricane Dorian Tropical Cyclone Update
NWS National Hurricane Center Miami FL AL052019
1245 pm EDT Sun Sep 01 2019

...CATASTROPHIC CATEGORY 5 DORIAN MAKES LANDFALL ON ELBOW CAY IN THE
ABACOS...


Data from an Air Force Reserve Hurricane Hunter aircraft and
satellite data indicate that Dorian has made landfall at 1240 pm
EDT (1640 UTC) in Elbow Cay, Abacos. The winds have increased
to 185 mph (295 km/h) with the minimum central pressure falling to
911 mb (26.90 inches).

This is a life-threatening situation. Residents there should take
immediate shelter. Do not venture into the eye if it passes over
your location.

Hazards:
- Wind Gusts over 220 mph
- Storm Surge 18 to 23 feet above normal tide levels with higher
destructive waves

These hazards will cause extreme destruction in the affected areas
and will continue for several hours.


SUMMARY OF 1245 PM EDT...1645 UTC...INFORMATION
----------------------------------------------
LOCATION...26.5N 77.0W
ABOUT 5 MI...10 KM E OF GREAT ABACO ISLAND
MAXIMUM SUSTAINED WINDS...185 MPH...295 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...911 MB...26.90 INCHES

$$
Forecaster Avila/Blake


Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

If I am not mistaken, Dorian just tied the 1935 Keys Labor Day Hurricane regarding the highest winds reported for a landfalling Atlantic Hurricane.
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

Dorian Update from Jeff:

Dorian…a now catastrophic hurricane capable of incredible damage makes landfall on Elbow Cay on Abacos Island in the Bahamas with sustained winds of 185mph.

USAF planes have been continuously inside the eye of Dorian this morning and the central pressure has fallen from 925mb to 907mb and the winds increasing from 160mph to 185mph sustained. Frequent dropsounde observations in the eyewall of Dorian have recorded 200-220mph winds near the surface and it is very likely that the islands in the northern Bahamas will see frequent wind gust over 200mph. Storm surge flooding of 15-20 feet is likely over the islands today.

This places Dorian only behind Hurricane Allen (1980) with 190mph sustained winds in the Atlantic basin…however 3 other Atlantic basin hurricanes have had sustained winds of 185mph: Gilbert (1988), Wilma (2005) and the 1935 Labor Day FL Keys hurricane.

A hurricane watch and storm surge watch has also been issued for the eastern coast of FL from Deerfield Beach to the Bevard/Volusia County line.
Attachments
09012019 Jeff 2 untitled.png
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
Cpv17
Posts: 5234
Joined: Fri Aug 31, 2018 1:58 pm
Location: El Campo/Wharton
Contact:

srainhoutx wrote: Sun Sep 01, 2019 12:19 pm If I am not mistaken, Dorian just tied the 1935 Keys Labor Day Hurricane regarding the highest winds reported for a landfalling Atlantic Hurricane.
That’s truly remarkable. I never expected this from Dorian.
cperk
Posts: 768
Joined: Sun Aug 19, 2012 12:09 pm
Location: Richmond
Contact:

Cpv17 wrote: Sun Sep 01, 2019 12:52 pm
srainhoutx wrote: Sun Sep 01, 2019 12:19 pm If I am not mistaken, Dorian just tied the 1935 Keys Labor Day Hurricane regarding the highest winds reported for a landfalling Atlantic Hurricane.
That’s truly remarkable. I never expected this from Dorian.

Me neither many thought it would dissipate after a visit to Hispanola.
cperk
Posts: 768
Joined: Sun Aug 19, 2012 12:09 pm
Location: Richmond
Contact:

It has to be agonizing for Floridians waiting to see what Dorian actually does.
Last edited by cperk on Sun Sep 01, 2019 1:23 pm, edited 2 times in total.
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

BULLETIN
Hurricane Dorian Intermediate Advisory Number 33A
NWS National Hurricane Center Miami FL AL052019
200 PM EDT Sun Sep 01 2019

...EYE OF CATASTROPHIC HURRICANE DORIAN OVER THE ABACOS ISLANDS IN
THE BAHAMAS...
...HEADING WITH ALL ITS FURY TOWARD GRAND BAHAMA...


SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...26.5N 77.1W
ABOUT 0 MI...0 KM OVER GREAT ABACO ISLAND
ABOUT 185 MI...295 KM E OF WEST PALM BEACH FLORIDA
MAXIMUM SUSTAINED WINDS...185 MPH...295 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...911 MB...26.90 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Watch is in effect for...
* North of Deerfield Beach to the Volusia/Brevard County Line

A Hurricane Warning is in effect for...
* Northwestern Bahamas excluding Andros Island

A Hurricane Watch is in effect for...
* Andros Island
* North of Deerfield Beach to the Volusia/Brevard County Line

A Tropical Storm Warning is in effect for...
* North of Deerfield Beach to Sebastian Inlet

A Tropical Storm Watch is in effect for...
* North of Golden Beach to Deerfield Beach
* Lake Okeechobee

A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations during the next 48 hours.
For a depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov.

A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. Preparations to protect life and
property should be rushed to completion.

A Hurricane Watch means that hurricane conditions are possible
within the watch area. A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
dangerous.

A Tropical Storm Warning means that tropical storm conditions are
expected within the warning area within 36 hours.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

Interests elsewhere along the east coast of Florida should continue
to monitor the progress of Dorian, as additional watches or
warnings may be required later today.

For storm information specific to your area in the United States,
including possible inland watches and warnings, please monitor
products issued by your local National Weather Service forecast
office. For storm information specific to your area outside of the
United States, please monitor products issued by your national
meteorological service.


DISCUSSION AND OUTLOOK
----------------------
At 200 PM EDT (1800 UTC), the extremely distinct eye of Hurricane
Dorian was located near latitude 26.5 North, longitude 77.1 West.
Dorian is moving toward the west near 7 mph (11 km/h). A slower
westward motion should continue for the next day or two, followed by
a gradual turn toward the northwest. On this track, the core of
extremely dangerous Hurricane Dorian will continue to pound Great
Abaco today and the move near or over Grand Bahama Island tonight
and Monday. The hurricane should move closer to the Florida east
coast late Monday through Tuesday night.

Maximum sustained winds are near 185 mph (295 km/h) with higher
gusts. Dorian is a extremely dangerous category 5 hurricane on the
Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity
are likely, and Dorian is expected to remain a catastrophic
hurricane during the next few days.

Hurricane-force winds extend outward up to 45 miles (75 km) from the
center and tropical-storm-force winds extend outward up to 140
miles (220 km).

The minimum central pressure measured by both NOAA and Air Force
reconnaissance plane was 911 mb (26.90 inches).


HAZARDS AFFECTING LAND
----------------------
WIND: Catastrophic hurricane conditions are occurring in the Abacos
Islands and will spread across Grand Bahama Island later today and
tonight. Do not venture out into the eye, as winds will suddenly
increase as the eye passes.

Hurricane conditions are possible within the hurricane watch area in
Florida by late Monday or early Tuesday.

Tropical storm conditions are expected within the tropical storm
warning area on Monday and Tuesday.

Tropical storm conditions are possible within the tropical storm
watch area by Monday night.

STORM SURGE: A life-threatening storm surge will raise water levels
by as much as 18 to 23 feet above normal tide levels in areas of
onshore winds on the Abaco Islands and Grand Bahama Island. Near
the coast, the surge will be accompanied by large and destructive
waves.

The combination of a dangerous storm surge and the tide will cause
normally dry areas near the coast to be flooded by rising waters
moving inland from the shoreline. The water could reach the
following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide...

Volusia/Brevard County Line to Jupiter Inlet FL...4 to 7 ft
North of Deerfield Beach to Jupiter Inlet FL...2 to 4 ft

The surge will be accompanied by large and destructive waves.
Surge-related flooding depends on the how close the center of
Dorian comes to the Florida east coast, and can vary greatly over
short distances. For information specific to your area, please see
products issued by your local National Weather Service forecast
office.

RAINFALL: Dorian is expected to produce the following rainfall
totals through late this week:

Northwestern Bahamas...12 to 24 inches, isolated 30 inches.
Coastal Carolinas...5 to 10 inches, isolated 15 inches.
Central Bahamas and the Atlantic Coast from the Florida peninsula
through Georgia...2 to 4 inches, isolated 6 inches.

This rainfall may cause life-threatening flash floods.

SURF: Large swells are already affecting east-facing shores of the
Bahamas, the Florida east coast, and will spread northward along the
southeastern United States coast during the next few days. These
swells are likely to cause life-threatening surf and rip current
conditions. Please consult products from your local weather office.


NEXT ADVISORY
-------------
Next complete advisory at 500 PM EDT.

Hourly Tropical Cyclone Update statements will begin at 300 PM EDT.

$$
Forecaster Avila
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
User avatar
DoctorMu
Posts: 5648
Joined: Sun Jun 28, 2015 11:58 am
Location: College Station
Contact:

SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...26.5N 77.1W
ABOUT 0 MI...0 KM OVER GREAT ABACO ISLAND
ABOUT 185 MI...295 KM E OF WEST PALM BEACH FLORIDA
MAXIMUM SUSTAINED WINDS...185 MPH...295 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...911 MB...26.90 INCHES
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

AF RECON just made its last center pass for this mission. Pressure held steady at 913mb. I still see no movement to the N at all.
Attachments
09012019 recon_AF302-2805A-DORIAN.png
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
User avatar
Rip76
Posts: 1787
Joined: Mon Feb 15, 2010 12:38 am
Location: The Woodlands
Contact:

Cpv17
Posts: 5234
Joined: Fri Aug 31, 2018 1:58 pm
Location: El Campo/Wharton
Contact:

Rip76 wrote: Sun Sep 01, 2019 1:43 pm Wow, heartbreaking

https://mobile.twitter.com/julmisjames/ ... 5718568960
I’m surprised the damage isn’t worse than that. Homes are still intact for the most part.
Cromagnum
Posts: 2592
Joined: Thu Feb 03, 2011 10:42 pm
Contact:

I can't even be bothered with the Twitter comments on videos like this. Morons very quick to blame Trump and climate change.
User avatar
DoctorMu
Posts: 5648
Joined: Sun Jun 28, 2015 11:58 am
Location: College Station
Contact:

Cpv17 wrote: Sun Sep 01, 2019 1:51 pm
Rip76 wrote: Sun Sep 01, 2019 1:43 pm Wow, heartbreaking

https://mobile.twitter.com/julmisjames/ ... 5718568960
I’m surprised the damage isn’t worse than that. Homes are still intact for the most part.
Reinforced concrete. Hope they stand up to the backside eyewall.
User avatar
DoctorMu
Posts: 5648
Joined: Sun Jun 28, 2015 11:58 am
Location: College Station
Contact:

Cromagnum wrote: Sun Sep 01, 2019 2:04 pm I can't even be bothered with the Twitter comments on videos like this. Morons very quick to blame Trump and climate change.
Obviously, too early to demonstrate evidence of a Trump effect - so that's moot...particularly as our proportional use of fossil fuels continues to decline.

However, we've averaged 3 CAT 5 hurricanes in the Atlantic basic every decades. We've had 12 CAT 5s now in 15 years..as [CO2] has spiked to 420 ppm from 280 a century ago.

CO2 has no political allegiance. The engine that feeds these monsters has been turbocharged.
User avatar
DoctorMu
Posts: 5648
Joined: Sun Jun 28, 2015 11:58 am
Location: College Station
Contact:

User avatar
Ptarmigan
Statistical Specialist
Statistical Specialist
Posts: 3982
Joined: Wed Feb 03, 2010 7:20 pm
Contact:

Code: Select all

054 
WTNT35 KNHC 012055
TCPAT5

BULLETIN
Hurricane Dorian Advisory Number  34
NWS National Hurricane Center Miami FL       AL052019
500 PM EDT Sun Sep 01 2019

...EYE OF CATASTROPHIC HURRICANE DORIAN CRAWLING OVER THE ABACOS
ISLANDS IN THE BAHAMAS...
...DORIAN'S FURY NOW AIMING TOWARD GRAND BAHAMA...


SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...26.6N 77.3W
ABOUT 95 MI...150 KM E OF FREEPORT GRAND BAHAMA ISLAND
ABOUT 175 MI...280 KM E OF WEST PALM BEACH FLORIDA
MAXIMUM SUSTAINED WINDS...185 MPH...295 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...910 MB...26.88 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

A Storm Surge Warning has been issued from Lantana to the
Volusia/Brevard County Line.

A Storm Surge Watch has been issued from the Volusia/Brevard County
Line to the Flagler/Volusia County Line.

A Hurricane Warning has been issued from Jupiter Inlet to the
Volusia/Brevard County Line.

A Hurricane Watch has been issued from the Volusia/Brevard County
Line to the Flagler/Volusia County Line

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for...
* Lantana to the Volusia/Brevard County Line

A Storm Surge Watch is in effect for...
* North of Deerfield Beach to Lantana
* Volusia/Brevard County Line to the Flagler/Volusia County Line

A Hurricane Warning is in effect for...
* Northwestern Bahamas excluding Andros Island
* Jupiter Inlet to the Volusia/Brevard County Line

A Hurricane Watch is in effect for...
* Andros Island
* North of Deerfield Beach to Jupiter Inlet
* Volusia/Brevard County Line to the Flagler/Volusia County Line

A Tropical Storm Warning is in effect for...
* North of Deerfield Beach to Jupiter Inlet

A Tropical Storm Watch is in effect for...
* North of Golden Beach to Deerfield Beach
* Lake Okeechobee

A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
during the next 36 hours in the indicated locations. For a
depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov.  This is a life-threatening situation.  Persons
located within these areas should take all necessary actions to
protect life and property from rising water and the potential for
other dangerous conditions.  Promptly follow evacuation and other
instructions from local officials.

A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations during the next 48 hours.

A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. Preparations to protect life and
property should be rushed to completion.

A Hurricane Watch means that hurricane conditions are possible
within the watch area.  A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
dangerous.

A Tropical Storm Warning means that tropical storm conditions are
expected within the warning area within 36 hours.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

Interests elsewhere along the east coast of Florida should continue
to monitor the progress of Dorian, as additional watches or
warnings may be required later today.

For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area
outside of the United States, please monitor products issued by
your national meteorological service.


DISCUSSION AND OUTLOOK
----------------------
At 500 PM EDT (2100 UTC), the distinct eye of Hurricane Dorian was
located near latitude 26.6 North, longitude 77.3 West. Dorian is
moving toward the west near 5 mph (7 km/h). A slower westward
to west-northwestward motions should continue for the next day or
two, followed by a gradual turn toward the northwest.  On this
track, the core of extremely dangerous Hurricane Dorian will
continue to pound Great Abaco this evening and move near or
over Grand Bahama Island tonight and Monday. The hurricane will
move dangerously close to the Florida east coast late Monday through
Tuesday night.

Maximum sustained winds are near 185 mph (295 km/h) with higher
gusts.  Dorian is a category 5 hurricane on the Saffir-Simpson
Hurricane Wind Scale.  Some fluctuations in intensity are likely,
and Dorian is expected to remain a catastrophic hurricane during the
next few days.

Hurricane-force winds extend outward up to 45 miles (75 km) from the
center and tropical-storm-force winds extend outward up to 140 miles
(220 km).

The last minimum central pressure measured by an Air Force
reconnaissance plane a couple of hours ago was 910 mb (26.88
inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Catastrophic hurricane conditions are occurring in the Abacos
Islands and will spread across Grand Bahama Island tonight. Do not
venture out into the eye, as winds will suddenly increase as the eye
passes.

Hurricane conditions are expected within the hurricane warning area
in Florida by late Monday or Tuesday.

Tropical storm conditions are expected within the tropical storm
warning area on Monday and Tuesday and are possible in the tropical
storm watch area by Monday night.

STORM SURGE:  A life-threatening storm surge will raise water levels
by as much as 18 to 23 feet above normal tide levels in areas of
onshore winds on the Abaco Islands and Grand Bahama Island.  Near
the coast, the surge will be accompanied by large and destructive
waves.

The combination of a dangerous storm surge and the tide will cause
normally dry areas near the coast to be flooded by rising waters
moving inland from the shoreline. The water could reach the
following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide...

Volusia/Brevard County Line to Jupiter Inlet FL...4 to 7 ft
North of Deerfield Beach to Jupiter Inlet FL...2 to 4 ft

The surge will be accompanied by large and destructive waves.
Surge-related flooding depends on the how close the center of
Dorian comes to the Florida east coast, and can vary greatly over
short distances.  For information specific to your area, please see
products issued by your local National Weather Service forecast
office.

RAINFALL:  Dorian is expected to produce the following rainfall
totals through late this week:

Northwestern Bahamas...12 to 24 inches, isolated 30 inches.
Coastal Carolinas...5 to 10 inches, isolated 15 inches.
The Atlantic Coast from the Florida peninsula through Georgia...3 to
6 inches, isolated 9 inches.
Southeastern Virginia...2 to 4 inches, isolated 6 inches.
Central Bahamas...2 to 4 inches, isolated 6 inches.

This rainfall may cause life-threatening flash floods.

SURF:  Large swells are already affecting east-facing shores of the
Bahamas, the Florida east coast, and will spread northward along the
southeastern United States coast during the next few days.  These
swells are likely to cause life-threatening surf and rip current
conditions.  Please consult products from your local weather office.


NEXT ADVISORY
-------------
Next intermediate advisory at 800 PM EDT.
Next complete advisory at 1100 PM EDT.

$$
Forecaster Avila
https://www.nhc.noaa.gov/text/refresh/M ... 2055.shtml

Hurricane Dorian now has 185 mph winds! :o :shock:
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

Tricky 12 to 24 hours ahead as Dorian under goes a eyewall replacement cycle. Typically the wind field expands and the cyclone may grow larger. With Dorian just 160 miles from the Florida Coast and the Gulf Stream ahead, I'm not sure all is clear for those along the East Coast of Florida.
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
869MB
Posts: 148
Joined: Fri Oct 30, 2015 8:44 am
Location: Katy, TX
Contact:

Ptarmigan wrote: Sun Sep 01, 2019 4:23 pm

Code: Select all

054 
WTNT35 KNHC 012055
TCPAT5

BULLETIN
Hurricane Dorian Advisory Number  34
NWS National Hurricane Center Miami FL       AL052019
500 PM EDT Sun Sep 01 2019

...EYE OF CATASTROPHIC HURRICANE DORIAN CRAWLING OVER THE ABACOS
ISLANDS IN THE BAHAMAS...
...DORIAN'S FURY NOW AIMING TOWARD GRAND BAHAMA...


SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...26.6N 77.3W
ABOUT 95 MI...150 KM E OF FREEPORT GRAND BAHAMA ISLAND
ABOUT 175 MI...280 KM E OF WEST PALM BEACH FLORIDA
MAXIMUM SUSTAINED WINDS...185 MPH...295 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...910 MB...26.88 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

A Storm Surge Warning has been issued from Lantana to the
Volusia/Brevard County Line.

A Storm Surge Watch has been issued from the Volusia/Brevard County
Line to the Flagler/Volusia County Line.

A Hurricane Warning has been issued from Jupiter Inlet to the
Volusia/Brevard County Line.

A Hurricane Watch has been issued from the Volusia/Brevard County
Line to the Flagler/Volusia County Line

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for...
* Lantana to the Volusia/Brevard County Line

A Storm Surge Watch is in effect for...
* North of Deerfield Beach to Lantana
* Volusia/Brevard County Line to the Flagler/Volusia County Line

A Hurricane Warning is in effect for...
* Northwestern Bahamas excluding Andros Island
* Jupiter Inlet to the Volusia/Brevard County Line

A Hurricane Watch is in effect for...
* Andros Island
* North of Deerfield Beach to Jupiter Inlet
* Volusia/Brevard County Line to the Flagler/Volusia County Line

A Tropical Storm Warning is in effect for...
* North of Deerfield Beach to Jupiter Inlet

A Tropical Storm Watch is in effect for...
* North of Golden Beach to Deerfield Beach
* Lake Okeechobee

A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
during the next 36 hours in the indicated locations. For a
depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov.  This is a life-threatening situation.  Persons
located within these areas should take all necessary actions to
protect life and property from rising water and the potential for
other dangerous conditions.  Promptly follow evacuation and other
instructions from local officials.

A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations during the next 48 hours.

A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. Preparations to protect life and
property should be rushed to completion.

A Hurricane Watch means that hurricane conditions are possible
within the watch area.  A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
dangerous.

A Tropical Storm Warning means that tropical storm conditions are
expected within the warning area within 36 hours.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

Interests elsewhere along the east coast of Florida should continue
to monitor the progress of Dorian, as additional watches or
warnings may be required later today.

For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area
outside of the United States, please monitor products issued by
your national meteorological service.


DISCUSSION AND OUTLOOK
----------------------
At 500 PM EDT (2100 UTC), the distinct eye of Hurricane Dorian was
located near latitude 26.6 North, longitude 77.3 West. Dorian is
moving toward the west near 5 mph (7 km/h). A slower westward
to west-northwestward motions should continue for the next day or
two, followed by a gradual turn toward the northwest.  On this
track, the core of extremely dangerous Hurricane Dorian will
continue to pound Great Abaco this evening and move near or
over Grand Bahama Island tonight and Monday. The hurricane will
move dangerously close to the Florida east coast late Monday through
Tuesday night.

Maximum sustained winds are near 185 mph (295 km/h) with higher
gusts.  Dorian is a category 5 hurricane on the Saffir-Simpson
Hurricane Wind Scale.  Some fluctuations in intensity are likely,
and Dorian is expected to remain a catastrophic hurricane during the
next few days.

Hurricane-force winds extend outward up to 45 miles (75 km) from the
center and tropical-storm-force winds extend outward up to 140 miles
(220 km).

The last minimum central pressure measured by an Air Force
reconnaissance plane a couple of hours ago was 910 mb (26.88
inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Catastrophic hurricane conditions are occurring in the Abacos
Islands and will spread across Grand Bahama Island tonight. Do not
venture out into the eye, as winds will suddenly increase as the eye
passes.

Hurricane conditions are expected within the hurricane warning area
in Florida by late Monday or Tuesday.

Tropical storm conditions are expected within the tropical storm
warning area on Monday and Tuesday and are possible in the tropical
storm watch area by Monday night.

STORM SURGE:  A life-threatening storm surge will raise water levels
by as much as 18 to 23 feet above normal tide levels in areas of
onshore winds on the Abaco Islands and Grand Bahama Island.  Near
the coast, the surge will be accompanied by large and destructive
waves.

The combination of a dangerous storm surge and the tide will cause
normally dry areas near the coast to be flooded by rising waters
moving inland from the shoreline. The water could reach the
following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide...

Volusia/Brevard County Line to Jupiter Inlet FL...4 to 7 ft
North of Deerfield Beach to Jupiter Inlet FL...2 to 4 ft

The surge will be accompanied by large and destructive waves.
Surge-related flooding depends on the how close the center of
Dorian comes to the Florida east coast, and can vary greatly over
short distances.  For information specific to your area, please see
products issued by your local National Weather Service forecast
office.

RAINFALL:  Dorian is expected to produce the following rainfall
totals through late this week:

Northwestern Bahamas...12 to 24 inches, isolated 30 inches.
Coastal Carolinas...5 to 10 inches, isolated 15 inches.
The Atlantic Coast from the Florida peninsula through Georgia...3 to
6 inches, isolated 9 inches.
Southeastern Virginia...2 to 4 inches, isolated 6 inches.
Central Bahamas...2 to 4 inches, isolated 6 inches.

This rainfall may cause life-threatening flash floods.

SURF:  Large swells are already affecting east-facing shores of the
Bahamas, the Florida east coast, and will spread northward along the
southeastern United States coast during the next few days.  These
swells are likely to cause life-threatening surf and rip current
conditions.  Please consult products from your local weather office.


NEXT ADVISORY
-------------
Next intermediate advisory at 800 PM EDT.
Next complete advisory at 1100 PM EDT.

$$
Forecaster Avila
https://www.nhc.noaa.gov/text/refresh/M ... 2055.shtml

Hurricane Dorian now has 185 mph winds! :o :shock:
And STILL trails 1980 Hurricane Allen with respect to highest sustained winds recorded within the Atlantic Ocean basin. This should make everyone respect Hurricane Allen even more. A truly remarkable hurricane in itself.
Post Reply
  • Information
  • Who is online

    Users browsing this forum: Ahrefs [Bot], Amazon [Bot] and 62 guests