August Weather Discussion

General Weather Discussions and Analysis
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svrwx0503
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Mr. T wrote:
svrwx0503 wrote:Getting ready to see an outflow boundary collision occur from north-central back across west and southwest portions of Harris county. Watch out for the possibility of some additional strong thunderstorm activity across the northern, central and west/southwestern portions of the metro area over the next 1-2 hours. Some of thunderstorms have been producing some pretty strong winds with Hooks airport reporting a gust to 45mph in the last hour.
Nice call, dude

Is that you holding a weather balloon in your avatar?
Yep that is a picture from a launch I did about a week ago from UH main campus.
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Mr. T
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svrwx0503 wrote: Yep that is a picture from a launch I did about a week ago from UH main campus.
Ah, cool

I want to hold a weather balloon :(

I could just blow up a really large regular balloon and pretend
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svrwx0503
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SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
601 PM CDT MON AUG 23 2010

TXC157-201-232330-
/O.CON.KHGX.SV.W.0064.000000T0000Z-100823T2330Z/
HARRIS TX-FORT BEND TX-
601 PM CDT MON AUG 23 2010

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR FORT BEND AND HARRIS COUNTIES...

AT 557 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS.
THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM MISSION BEND
TO PECAN GROVE TO FIRST COLONY...AND MOVING WEST AT 15 MPH.

A HAM RADIO OPERATOR REPORTED BRANCHES BLOWN DOWN IN SUGARLAND
SOUTHEAST OF THE INTERSECTION OF HIGHWAY 6 AND 59.

* LOCATIONS IN THE SEVERE THUNDERSTORMS WARNING INCLUDE BUT ARE NOT
LIMITED TO MEMORIAL...THE GALLERIA...ADDICKS...WEST UNIVERSITY
PLACE...TOWN WEST...SUGAR LAND...STAFFORD...SOUTHSIDE PLACE...
ROSENBERG...RICHMOND...PINEY POINT VILLAGE...MISSOURI CITY...
MEADOWS...HUNTERS CREEK VILLAGE...HEDWIG VILLAGE...BUNKER HILL
VILLAGE AND BELLAIRE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STRONG WINDS MAY KNOCK DOWN TREES AND POWER LINES OR DAMAGE
BUILDINGS. AVOID WINDOWS AND TAKE COVER...NOW!

THIS IS A DANGEROUS STORM...SEEK SAFE SHELTER AND STAY AWAY FROM
WINDOWS!
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Ptarmigan
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tjelliot wrote:I have a gneral question for our weather gurus. As I was growing up my friend's grandmother used to wait for the first night in late summer when the LOW temperature was in the 60's. She would then say "that the back of summer is broken". I remember those days happening in last August or early September. Do any of our gurus know-or can research-what is the average date for Houston to first get a low in the 60's in the fall. I know on the forum we have talked about the 50's, but i'd like to know about the 60's.
I looked at old records and did notice some years there were 60's in July. Also, do you need know 60's from 60 to 69 or 60 to 65?
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BiggieSmalls
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May have 60's in Dallas in a few nights :D
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svrwx0503
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Pretty rough weather for some across northeastern Ft. Bend and eastern Harris counties.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
756 PM CDT MON AUG 23 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0601 PM TSTM WND DMG SUGAR LAND 29.62N 95.62W
08/23/2010 FORT BEND TX AMATEUR RADIO

BRANCHES DOWN AT KEY MAP 608D...SOUTHEAST OF THE HIGHWAY
59 AND HIGHWAY 6 INTERSECTION.

0613 PM TSTM WND GST RICHMOND 29.58N 95.76W
08/23/2010 E60.00 MPH FORT BEND TX EMERGENCY MNGR

SPOTTER ESTIMATED WINDS OF 60 MPH.

0620 PM TSTM WND GST RICHMOND 29.58N 95.76W
08/23/2010 E65.00 MPH FORT BEND TX EMERGENCY MNGR

SKYWARN SPOTTER REPORTED WINDS STRONGER NOW AND STANDING
SHINGLES UP.

0642 PM TSTM WND DMG 1 W CHANNELVIEW 29.79N 95.13W
08/23/2010 HARRIS TX AMATEUR RADIO

SKYWARN SPOTTER REPORTED LARGE TREE LIMBS DOWN AND LOTS
OF DEBRIS FLYING.
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djjordan
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Numerous trees down in our neighborhood Settlers Way and Hwy 6. During the height of the storm I estimate winds gusts to 65 mph and we had quarter sized hail. Power just came back online 20 minutes ago .... That was one wicked storm. Visibility was cut to zero at the height of this storm as well.
Attachments
storm damage 2 aug 23 2010.jpg
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storm damage 1 aug 23 2010.jpg
storm damage 1 aug 23 2010.jpg (63.59 KiB) Viewed 5503 times
Large tree on house Aug 23 2010 (2).jpg
Large tree on house Aug 23 2010 (2).jpg (48.97 KiB) Viewed 5503 times
~~~When Thunder Roars Go Indoors~~~
~~~Turn Around Don't Drown~~~
~~~Run From The Water, Hide From The Wind~~~
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txflagwaver
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So Galveston County under Severe Thunderstorm Warning...nothin on radar????
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kayci
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Location: Alvin
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Tx City waiting for action.... no????
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kayci
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Is that watch/warning box gonna make it across the bay?
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txflagwaver
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We can hope! Bet we don't get any in my neighborhood...looks like it's pooping out...windy outside..that's about it...
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kayci
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Windy here in Tx city. lightning and thunder in the background over bay.. please!! need rain!
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txflagwaver
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Zip here...nada, nuttin, zero, zilch...well you get the idea!
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Mr. T
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This weekend could be very wet.

The GFS has been harping on this for a while, and the other models are beginning to jump on the bandwagon. Looks like a coastal trough situation, and if that is the case, locations along and just inland of the coast could end up with some very big rainfall totals and maybe even some flooding issues, despite the very dry grounds from the recent dry period.

Definitely looks like a pattern change is finally here. Some dry air courtesy a frontal boundary that will push through wednesday will also provide the area with some drier dewpoint air. Less humidity and overnight lows finally falling to average (lower 70s instead of lower 80s). Just a little sign that the worst of summer is probably over
jeff
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60-65mph winds in Richmond between 605 and 620pm. Very strong downbursts within inner rain core had the shingles standing on end. By far the strongest winds since Ike and no pwer of 6.5 hours.
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srainhoutx
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Maybe some good news concerning the Heat Advisories...

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
937 AM CDT TUE AUG 24 2010

.DISCUSSION...
MOISTURE LEVELS CONSIDERABLY LOWER THAN YESTERDAY. SHRA/TSRA FROM
EARLIER THIS MORNING ARE ON THE WANE AS WELL. CONVECTIVE TEMPS ARE
AGAIN IN THE MID 90S SO REDEVELOPMENT...IF ANY... WILL AGAIN BE LATE
IN THE DAY. FEEL COVERAGE WILL BE LESS THAN MONDAY AS THE AREA
WAS WORKED OVER RATHER VIGOROUSLY AND FORECAST SOUNDINGS SHOW LESS
INSTABILITY AND MOISTURE. FEEL 20 POPS WILL COVER IT FOR NOW. HEAT
ADVISORY STILL LOOKS ON TARGET FOR TODAY AS HEAT INDEX VALUES RISE
TO NEAR OR ABOVE 105 DEGREES. 12Z NAM KEEPS THE LOWER DEW PT AIR
NORTH OF I-10 THROUGH 12Z WED AND THEN SPREADS UPPER 50S/LOWER 60S
DEW PTS ACROSS THE ENTIRE CWA ON WEDNESDAY. LOOKS LIKE THE HEAT
ADVISORY WILL BE ALLOWED TO EXPIRE AT 00Z (KEEP YOUR FINGERS
CROSSED).
PREVIOUS FORECAST IS ON TRACK SO NO UPDATE REQUIRED THIS
MORNING. 43
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

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srainhoutx
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Heat Advisory will be dropped... :D

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
251 PM CDT TUE AUG 24 2010

.DISCUSSION...
AT LONG LAST...THE NEVER ENDING HEAT ADVISORY SAGA IS COMING TO AN
END! CONSIDERABLY DRIER AIR WILL WORK INTO THE NORTHERN HALF OF
SOUTHEAST TEXAS OVERNIGHT AND FILTER INTO THE REMAINDER OF THE
REGION ON WEDNESDAY. SFC DEW PTS WILL FALL INTO THE LOWER 60S OVER
MUCH OF THE AREA ON WEDNESDAY. THIS WILL KEEP HEAT INDEX VALUES
CLOSE TO THE AMBIENT AIR TEMPERATURE. THE HEAT ADVISORY WILL BE
ALLOWED TO EXPIRE AT 00Z.

LEFTOVER BOUNDARIES FROM YESTERDAY COUPLED WITH VERY WARM
TEMPERATURES HAS ALLOWED WIDELY SCATTERED SHOWERS AND
THUNDERSTORMS TO DEVELOP. AN INVERTED V SOUNDING STILL SUPPORTS
WIND DAMAGE WITH THE STRONGER STORMS...MAINLY OVER THE WESTERN
HALF OF THE AREA. WEDNESDAY AND THURSDAY LOOK VERY NICE WITH
SEASONAL AUGUST TEMPERATURES...LOW HUMIDITIES AND JUST AN OUTSIDE
CHANCE OF A SHOWER OR THUNDERSTORM MAINLY ALONG A WEAK SEA BREEZE.

A BIT OF A PATTERN CHANGE OVER THE WEEKEND AS AN UPPER LEVEL RIDGE
SHIFTS TO THE NORTHEAST AND A RATHER POTENT TROUGH DEVELOPS OVER
THE WESTERN U.S.. THIS WILL ALLOW A DEEP FETCH OF TROPICAL
MOISTURE TO TAKE AIM ON THE TEXAS COAST. AN INVERTED TROUGH OF LOW
PRESSURE WILL DEVELOP AT THE SURFACE AND ALSO MOVE SLOWLY INLAND
SAT/SUN. THE ECMWF...GFS AND CAN SHOW THE SFC TROUGH AND ASSOICATED
WEAKNESS ALOFT. LONG RANGE MODELS DIFFER SIGNIFICANTLY WITH THE
PLACEMENT OF THE HEAVIEST PRECIPITATION. THE 12Z ECMWF/CAN ARE IN
GOOD AGREEMENT OF DISPLACING THE PRECIP TOWARD LOUISIANA...WHILE
THE GFS PLACES THE GREATEST RAINFALL ON THE TEXAS COAST. THE
ECMWF/CAN HAVE NOT SHOWN MUCH CONSISTENCY AND PREFER THE MORE
STABLE GFS. THE GFS SHOWS PW VALUES OF 2.4 TO 2.6 INCHES AND A
NEARLY STATIONARY BOUNDARY ALONG THR COAST. IF THE GFS PANS OUT...
HEAVY RAIN WILL BE POSSIBLE ALONG THE COAST WITH A SHARP QPF
GRADIENT. COULD SEE EXCESSIVE RAIN AT THE COAST AND LESS THAN AN
INCH OF RAIN WELL INLAND. WHICHEVER SUITE OF MODELS IS
CORRECT...AT LEAST SCATTERED SHOWERS SHOULD OCCUR WITH MORE CLOUDS
AND LOWER HEIGHTS TRANSLATING INTO LOWER TEMPERATURES. 43
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

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djjordan
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BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
316 PM CDT TUE AUG 24 2010

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN CHAMBERS COUNTY IN SOUTHEAST TEXAS...
EXTREME EASTERN HARRIS COUNTY IN SOUTHEAST TEXAS...
SOUTHERN LIBERTY COUNTY IN SOUTHEAST TEXAS...

* UNTIL 400 PM CDT

* AT 313 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR AMES...OR NEAR
LIBERTY...AND MOVING SOUTH AT 30 MPH.

* LOCATIONS IN THE SEVERE THUNDERSTORM WARNING INCLUDE BUT ARE NOT
LIMITED TO OLD RIVER-WINFREE...MONT BELVIEU...BAYTOWN AND ANAHUAC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STRONG WINDS MAY KNOCK DOWN TREES AND POWER LINES OR DAMAGE
BUILDINGS. TAKE COVER NOW!
~~~When Thunder Roars Go Indoors~~~
~~~Turn Around Don't Drown~~~
~~~Run From The Water, Hide From The Wind~~~
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djjordan
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Location: Montgomery, Texas
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BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
433 PM CDT TUE AUG 24 2010

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN BRAZORIA COUNTY IN SOUTHEAST TEXAS...
NORTHWESTERN GALVESTON COUNTY IN SOUTHEAST TEXAS...
SOUTHEASTERN HARRIS COUNTY IN SOUTHEAST TEXAS...

* UNTIL 515 PM CDT

* AT 431 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR CHANNELVIEW...AND
MOVING SOUTHWEST AT 15 MPH. THIS STORM IS CAPABLE OF PRODUCING
DAMAGING WINDS IN EXCESS OF 60 MPH.

* LOCATIONS IN THE SEVERE THUNDERSTORM WARNING INCLUDE BUT ARE NOT
LIMITED TO THE MEDICAL CENTER...RELIANT PARK...JOHNSON SPACE
CENTER...HOBBY AIRPORT...HERMAN PARK...ELLINGTON FIELD...WEBSTER...
SOUTH HOUSTON...SHELDON...PEARLAND...PASADENA...MANVEL...LA
PORTE...JACINTO CITY...HIGHLANDS...GALENA PARK...FRIENDSWOOD...DEER
PARK...CLOVERLEAF...BROOKSIDE VILLAGE...BAYTOWN AND ALVIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STRONG WINDS MAY KNOCK DOWN TREES AND POWER LINES OR DAMAGE
BUILDINGS. TAKE COVER NOW!
~~~When Thunder Roars Go Indoors~~~
~~~Turn Around Don't Drown~~~
~~~Run From The Water, Hide From The Wind~~~
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djjordan
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Location: Montgomery, Texas
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BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
440 PM CDT TUE AUG 24 2010

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
WESTERN BRAZORIA COUNTY IN SOUTHEAST TEXAS...
FORT BEND COUNTY IN SOUTHEAST TEXAS...
SOUTHERN HARRIS COUNTY IN SOUTHEAST TEXAS...
NORTHERN MATAGORDA COUNTY IN SOUTHEAST TEXAS...
EASTERN WHARTON COUNTY IN SOUTHEAST TEXAS...

* UNTIL 545 PM CDT

* AT 439 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS. THESE STORMS WERE LOCATED ALONG A
LINE EXTENDING FROM ROSENBERG TO MISSOURI CITY...AND MOVING
SOUTHWEST AT 25 MPH. STRONG DAMAGING WINDS IN EXCESS OF 60 MPH WILL
BE POSSIBLE WITH THIS LINE OF STORMS.

* LOCATIONS IN THE SEVERE THUNDERSTORM WARNING INCLUDE BUT ARE NOT
LIMITED TO BRAZOS BEND STATE PARK...WHARTON...SUGAR LAND...
STAFFORD...RICHMOND...PLEAK...PECAN GROVE...NEEDVILLE...MEADOWS...
FIRST COLONY AND BOLING-IAGO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STRONG WINDS MAY KNOCK DOWN TREES AND POWER LINES OR DAMAGE
BUILDINGS. TAKE COVER NOW!
~~~When Thunder Roars Go Indoors~~~
~~~Turn Around Don't Drown~~~
~~~Run From The Water, Hide From The Wind~~~
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