MARCH 2018 - Pleasant Good Friday/Easter Weekend Ahead
Well the line appears to be bowing and racing eastward, at least for now. Big question is if this will continue to race east this morning undercutting the inflow later today.
Last edited by jasons2k on Wed Mar 28, 2018 7:49 am, edited 1 time in total.
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srainhoutx
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Notice how the Southern edge of that bowing line is weakening and the 'strongest returns are beginning to transition NE is the SW flow aloft. Carefully watching new Thunderstorm development S of Uvalde. There is also some storms attempting to fire just NE of Corpus Christi. HGX is discussing the HRRR and Texas Tech WRF not handling the overnight/early morning features very well, but insisting the wave to our SW could be the big event for SE Texas this afternoon/tonight. Still a difficult forecast challenge as seems to be the case in these sort of "events".jasons wrote:Well the line appears to be bowing and racing eastward, at least for now. Big question is if his will continue to race east this undercutting the inflow later today.
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srainhoutx
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NWS Storm Prediction Center Norman OK
0746 AM CDT Wed Mar 28 2018
Valid 281300Z - 291200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT
FROM SOUTH CENTRAL AND SOUTHEAST TX TO THE ARK-LA-MISS...
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM SOUTH TX TO
PARTS OF THE MID SOUTH...
...SUMMARY...
Severe thunderstorms with a few tornadoes, large hail and damaging
winds are possible today from parts of south and east Texas into
parts of the Mid South.
...South/southeast TX to the Mid South through tonight...
The effective cold front, reinforced by widespread overnight
convection, has stalled today from southeast TX into northern LA. A
weak wave is also expected to move northeastward along the front
from just south of CLL this morning to northern LA by late this
evening, in response to a midlevel trough ejecting
east-northeastward over the southern Plains through tonight.
Low-level mass response to the weak wave/ejecting midlevel trough
will result in some increase in low-level shear from southeast TX
today to the Ark-La-Miss by early tonight. Embedded surface-based
supercells and/or QLCS mesovortices will be possible within the
convective bands along or just south of the quasi-stationary front,
potentially producing a few tornadoes in a moist environment with
effective SRH in excess of 300 m2/s2. Otherwise, the threat for
large hail will be greater across south and southeast TX in
proximity to the steeper midlevel lapse rates and where storms may
occasionally remain more discrete. A few damaging gusts will be
possible along the convective bands, potentially as far northeast as
northern MS and vicinity along the northeast edge of the weakly
unstable surface warm sector into tonight.
..Thompson/Picca.. 03/28/2018
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tireman4
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Tor Con of 2-3
WEDNESDAY 3/28
Isolated severe thunderstorms in MS, LA, middle and upper coastal TX, extreme southwest AL. TORCON - 2 to 3
A slow-moving cold front is the focus for storms, but with winds all parallel to the front except at the surface, heavy rain and widespread clouds hold down instability and the low-level jet is weak, holding down the tornado threat
WEDNESDAY 3/28
Isolated severe thunderstorms in MS, LA, middle and upper coastal TX, extreme southwest AL. TORCON - 2 to 3
A slow-moving cold front is the focus for storms, but with winds all parallel to the front except at the surface, heavy rain and widespread clouds hold down instability and the low-level jet is weak, holding down the tornado threat
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tireman4
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rea Forecast Discussion
National Weather Service Houston/Galveston TX
357 AM CDT Wed Mar 28 2018
...Locally heavy rainfall and strong to severe thunderstorms
possible through early Thursday morning...
.DISCUSSION...
After yesterday evening`s round of showers and thunderstorms across
some of our northern counties (we had rainfall totals between 2 to
almost 3.75 inches across parts of Grimes County), most activity
so far in the overnight hours has remained off to our west and
northwest. Shower and thunderstorm coverage will increase across
Southeast Texas today as the storm system out west shifts eastward.
High moisture levels in place (precipitable water values around 2
inches) combined with increasing lift and shear will support
locally heavy rainfall (event totals of 1 to 3 inches with isolated
higher amounts approaching 4 to 5 inches - slight to moderate
risk of excessive rainfall per WPC`s current Day 1 Outlook) and
possible strong to severe thunderstorm development (damaging
winds/large hail/isolated tornadoes - slight risk per SPC`s current
Day 1 Outlook) to develop along and ahead of a cold front as it
moves eastward across the state and through our area in the next
24 hours. Activity will move off the coast during the overnight
hours late tonight through early Thursday morning, and we will
continue to indicate quickly improving conditions from west to
east as the day progresses on Thursday. Cooler low temperatures,
lower humidities and drier weather closes out the week followed by
a gradual warmup over the weekend with a return of onshore winds.
This onshore flow looks to persist into the middle of next week.
42
&&
.MARINE...
Still seeing moderate onshore winds and elevated seas offshore so
will maintain current SCEC/SCA configuration along with the Beach
Hazards Statement for rip currents & elevated surf.
Unsettled wx, with periods of showers and thunderstorms are expected
to move into the coastal waters later this evening, overnight and
into early Thursday morning. Winds/seas will be higher near storms.
We`ll probably see a period off offshore winds in the wake of the
system and then going variable until the primary front pushes off
the coast late Thursday night. Winds will veer to the southeast by
Saturday and a light to moderate onshore flow will then persist
into the middle of next week. 47
&&
.AVIATION...
IFR ceilings are currently situated across northern terminals and a
combination of VFR/MVFR conditions further south. With the exception
of probably LBX & GLS, expect precip to expand in areal coverage
throughout the day. Possibility of training heavy rain and some
strong wind gusts exist in the embedded more intense cells. The most
probable time period for strong/severe cells should be in the
afternoon and evening hours complements of heating. Based on the
latest data, it appears the more significant wx at the metro
airports will be between 3pm-1am CDT. 47
&&
.CLIMATE...
Yesterday`s low temperature for the City of Houston (IAH) was 73 degrees.
This temperature was not only the record high minimum for March 27th,
but it also tied the record high minimum for the entire month of March.
Since records began for the City of Houston in 1881, the record high
minimum of 73 degrees has only happened twice: Yesterday and on March
19th, 2012. 42
&&
.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL) 75 59 78 52 75 / 90 90 10 10 0
Houston (IAH) 80 65 81 56 78 / 80 90 40 10 0
Galveston (GLS) 76 67 75 63 73 / 60 90 50 10 0
&&
.HGX WATCHES/WARNINGS/ADVISORIES...
TX...Flash Flood Watch through late tonight for the following zones:
Austin...Brazos...Burleson...Colorado...Grimes...Houston...
Madison...Montgomery...Polk...San Jacinto...Trinity...
Walker...Waller...Washington.
Flash Flood Watch from 7 AM CDT this morning through Thursday
morning for the following zones: Brazoria...Chambers...Fort
Bend...Galveston...Harris...Liberty...Matagorda...Wharton.
GM...SMALL CRAFT SHOULD EXERCISE CAUTION through late tonight for the
following zones: Coastal waters from Freeport to the
Matagorda Ship Channel out 20 NM...Coastal waters from High
Island to Freeport out 20 NM.
Small Craft Advisory until 1 AM CDT Thursday for the following
zones: Waters from Freeport to the Matagorda Ship Channel
from 20 to 60 NM...Waters from High Island to Freeport from
20 to 60 NM.
&&
$$
National Weather Service Houston/Galveston TX
357 AM CDT Wed Mar 28 2018
...Locally heavy rainfall and strong to severe thunderstorms
possible through early Thursday morning...
.DISCUSSION...
After yesterday evening`s round of showers and thunderstorms across
some of our northern counties (we had rainfall totals between 2 to
almost 3.75 inches across parts of Grimes County), most activity
so far in the overnight hours has remained off to our west and
northwest. Shower and thunderstorm coverage will increase across
Southeast Texas today as the storm system out west shifts eastward.
High moisture levels in place (precipitable water values around 2
inches) combined with increasing lift and shear will support
locally heavy rainfall (event totals of 1 to 3 inches with isolated
higher amounts approaching 4 to 5 inches - slight to moderate
risk of excessive rainfall per WPC`s current Day 1 Outlook) and
possible strong to severe thunderstorm development (damaging
winds/large hail/isolated tornadoes - slight risk per SPC`s current
Day 1 Outlook) to develop along and ahead of a cold front as it
moves eastward across the state and through our area in the next
24 hours. Activity will move off the coast during the overnight
hours late tonight through early Thursday morning, and we will
continue to indicate quickly improving conditions from west to
east as the day progresses on Thursday. Cooler low temperatures,
lower humidities and drier weather closes out the week followed by
a gradual warmup over the weekend with a return of onshore winds.
This onshore flow looks to persist into the middle of next week.
42
&&
.MARINE...
Still seeing moderate onshore winds and elevated seas offshore so
will maintain current SCEC/SCA configuration along with the Beach
Hazards Statement for rip currents & elevated surf.
Unsettled wx, with periods of showers and thunderstorms are expected
to move into the coastal waters later this evening, overnight and
into early Thursday morning. Winds/seas will be higher near storms.
We`ll probably see a period off offshore winds in the wake of the
system and then going variable until the primary front pushes off
the coast late Thursday night. Winds will veer to the southeast by
Saturday and a light to moderate onshore flow will then persist
into the middle of next week. 47
&&
.AVIATION...
IFR ceilings are currently situated across northern terminals and a
combination of VFR/MVFR conditions further south. With the exception
of probably LBX & GLS, expect precip to expand in areal coverage
throughout the day. Possibility of training heavy rain and some
strong wind gusts exist in the embedded more intense cells. The most
probable time period for strong/severe cells should be in the
afternoon and evening hours complements of heating. Based on the
latest data, it appears the more significant wx at the metro
airports will be between 3pm-1am CDT. 47
&&
.CLIMATE...
Yesterday`s low temperature for the City of Houston (IAH) was 73 degrees.
This temperature was not only the record high minimum for March 27th,
but it also tied the record high minimum for the entire month of March.
Since records began for the City of Houston in 1881, the record high
minimum of 73 degrees has only happened twice: Yesterday and on March
19th, 2012. 42
&&
.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL) 75 59 78 52 75 / 90 90 10 10 0
Houston (IAH) 80 65 81 56 78 / 80 90 40 10 0
Galveston (GLS) 76 67 75 63 73 / 60 90 50 10 0
&&
.HGX WATCHES/WARNINGS/ADVISORIES...
TX...Flash Flood Watch through late tonight for the following zones:
Austin...Brazos...Burleson...Colorado...Grimes...Houston...
Madison...Montgomery...Polk...San Jacinto...Trinity...
Walker...Waller...Washington.
Flash Flood Watch from 7 AM CDT this morning through Thursday
morning for the following zones: Brazoria...Chambers...Fort
Bend...Galveston...Harris...Liberty...Matagorda...Wharton.
GM...SMALL CRAFT SHOULD EXERCISE CAUTION through late tonight for the
following zones: Coastal waters from Freeport to the
Matagorda Ship Channel out 20 NM...Coastal waters from High
Island to Freeport out 20 NM.
Small Craft Advisory until 1 AM CDT Thursday for the following
zones: Waters from Freeport to the Matagorda Ship Channel
from 20 to 60 NM...Waters from High Island to Freeport from
20 to 60 NM.
&&
$$
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srainhoutx
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For those that would like to follow the progress of the storm today, GOES 16 Mesoscale Floater 1 is focused most of Texas and Louisiana...click the "play" button at the lower right of the image...you'll need to scroll down to animate the imagery which updates every minute.
http://weather.cod.edu/satrad/exper/?pa ... hecked=map
http://weather.cod.edu/satrad/exper/?pa ... hecked=map
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I've had a chance to check out some obs this morning. Earlier this morning, I thought the initial line was going to bow-out and push through, cutting off the inflow. This was really just based on some glances at the HRRR and radar trends.
How quickly things can change. The line's advancement has pulled-up stationary and you can see on GOES16 the southerly flow is starting to overtake it, so the storms moving up towards Walker County will continue to just move on out to the northeast.
That leaves us sitting in the warm sector for the next few hours before the stuff from the West and Southwest moves in. The potential is there for us to get some very heavy rains and some severe weather. The severe weather for now seems to be limited to an isolated cell or two anchoring the the bottoms of expanding convective complexes.
The wild cards and trends to look for today are:
1) Does the sun break out and heat things up? If so, the severe threat increases substantially.
2) The new line of storms will likely transition to linear. Will it slow down and drench us or bow out and push through?
3) If the line does bow-out, we need to look out for sraightline winds
How quickly things can change. The line's advancement has pulled-up stationary and you can see on GOES16 the southerly flow is starting to overtake it, so the storms moving up towards Walker County will continue to just move on out to the northeast.
That leaves us sitting in the warm sector for the next few hours before the stuff from the West and Southwest moves in. The potential is there for us to get some very heavy rains and some severe weather. The severe weather for now seems to be limited to an isolated cell or two anchoring the the bottoms of expanding convective complexes.
The wild cards and trends to look for today are:
1) Does the sun break out and heat things up? If so, the severe threat increases substantially.
2) The new line of storms will likely transition to linear. Will it slow down and drench us or bow out and push through?
3) If the line does bow-out, we need to look out for sraightline winds
This is my go-to. Lots of customizations available here (note you have to click a point in the image to zoom):srainhoutx wrote:For those that would like to follow the progress of the storm today, GOES 16 Mesoscale Floater 1 is focused most of Texas and Louisiana...click the "play" button at the lower right of the image...you'll need to scroll down to animate the imagery which updates every minute.
http://weather.cod.edu/satrad/exper/?pa ... hecked=map
https://weather.msfc.nasa.gov/goes/abi/ ... and02.html
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srainhoutx
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Update from Jeff:
Low level outflow boundary has progressed into SE TX this morning roughly along a line from near Huntsville to Columbus. Short wave will be ejecting out of NE MX in the next few hours and spreading lift along this boundary. Expect a general increasing trend in both coverage and intensity of showers and thunderstorms over the region by early this afternoon. Thus far rainfall amounts under the heaviest storms NW of Houston have averaged 1-2 inches with higher totals of 2-4 inches around the San Antonio area.
Expect activity to move into and begin to impact Harris County by early afternoon and continue into the evening hours.
No significant changes to the forecast rainfall amounts with a general 1-3 inches over the area and isolated 4-5 inches possible.
Low level outflow boundary has progressed into SE TX this morning roughly along a line from near Huntsville to Columbus. Short wave will be ejecting out of NE MX in the next few hours and spreading lift along this boundary. Expect a general increasing trend in both coverage and intensity of showers and thunderstorms over the region by early this afternoon. Thus far rainfall amounts under the heaviest storms NW of Houston have averaged 1-2 inches with higher totals of 2-4 inches around the San Antonio area.
Expect activity to move into and begin to impact Harris County by early afternoon and continue into the evening hours.
No significant changes to the forecast rainfall amounts with a general 1-3 inches over the area and isolated 4-5 inches possible.
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https://twitter.com/iembot_hgx
https://twitter.com/NWSWPC
https://twitter.com/iembot_spc
https://twitter.com/NWSHouston
MESOSCALE PRECIPITATION DISCUSSION 0078
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1104 AM EDT WED MAR 28 2018
AREAS AFFECTED...SOUTH-CENTRAL TO SOUTHEAST TX
CONCERNING...HEAVY RAINFALL...FLASH FLOODING LIKELY
VALID 281500Z - 282100Z
SUMMARY...SHOWERS AND THUNDERSTORMS WITH INTENSE RAINFALL RATES OF
UP TO 2 INCHES/HR ARE EXPECTED TO BECOME MORE FOCUSED OVER THE
NEXT FEW HOURS. FLASH FLOODING IS LIKELY.
DISCUSSION...GOES-16 1-MINUTE WV IMAGERY SUITE SHOWS A FAVORABLY
DIVERGENT FLOW PATTERN ALOFT OVER MUCH OF SOUTH-CENTRAL TX OUT
AHEAD OF AN UPPER TROUGH EJECTING EAST OUT ACROSS THE SOUTHERN
HIGH PLAINS. THIS IS ALREADY FACILITATING UPSCALE GROWTH OF
CONVECTION IN AND AROUND THE GREATER SAN ANTONIO METROPOLITAN
AREA. CLOUD TOPS IN GENERAL WITH THIS CONVECTION AND ALSO
CONVECTION OVER SOUTHEAST TX TO THE NORTHWEST OF HOUSTON ARE
TENDING TO COOL AND GIVEN THE APPROACHING UPSTREAM DYNAMICS AND
PROXIMITY OF A GRADUALLY DESTABILIZING BOUNDARY LAYER...ADDITIONAL
CONVECTIVE ORGANIZATION IS LIKELY TO OCCUR.
THE STRONGER INSTABILITY PARAMETERS ARE CURRENTLY OVER
SOUTH-CENTRAL TX WITH MUCAPE VALUES OF 1000 TO 2000 J/KG. DIURNAL
HEATING SHOULD GRADUALLY ALLOW THIS INSTABILITY TO BECOME MORE
ROOTED NEAR THE SURFACE OVER THE NEXT SEVERAL HOURS...AND THIS
INSTABILITY IS EXPECTED TO POOL NORTHEASTWARD ALONG AN OUTFLOW
BOUNDARY SITUATED AHEAD OF A COLD FRONT. IN TIME...THE COLD FRONT
SHOULD SETTLE SOUTHEAST AND LIKELY WILL MERGE WITH THE OUTFLOW
BOUNDARY AND WILL FOSTER AN ENHANCED AXIS OF SURFACE CONVERGENCE.
THIS COUPLED WITH THE IMPROVING THERMODYNAMIC ENVIRONMENT AND
LARGER SCALE ASCENT IS EXPECTED TO RESULT IN A SW/NE AXIS OF
FOCUSED CONVECTION WITH POTENTIAL FOR TRAINING CELL ACTIVITY.
PWATS ARE RATHER HIGH WITH VALUES OF 1.5 TO 1.7 INCHES...BUT THE
CIRA-LPW DATA SETS CONFIRM A RATHER DEEP POOLING OF THE MOISTURE
WITH A NOTABLE EASTERN TROPICAL PACIFIC CONNECTION SEEN IN THE
500/300 MB LAYER. THIS SUPPORTS GREATER RAINFALL EFFICIENCY FOR
INTENSE RAINFALL RATES WHEN CONSIDERING THE VERY COLD CLOUD
TOPS/STRONG UPDRAFT SIGNALS. ADDITIONALLY...THE LATEST RAP
FORECASTS THE PERSISTENCE OF A MOIST 40 TO 45 KT S/SW LOW LEVEL
JET AHEAD OF THE MAIN COLD FRONT.
EXPECT RAINFALL RATES OF UP TO 2 INCHES/HR AS CONVECTION
ORGANIZES...AND WITH THE CONVECTION BECOMING MORE ALIGNED WITH THE
MEAN LAYER FLOW...TRAINING CONVECTION WILL FOSTER THE POTENTIAL
FOR AS MUCH AS 3 TO 6 INCHES OF RAIN AT LEAST LOCALLY THROUGH 21Z.
THIS IS CONSISTENT WITH THE LATEST HRRR OUTPUT. FLASH FLOODING
WILL BECOME LIKELY...AND ESPECIALLY OVER ANY AREAS THAT SAW HEAVY
RAINFALL EARLIER THIS MORNING AND LAST NIGHT.
ORRISON
ATTN...WFO...CRP...EWX...FWD...HGX...LCH...SHV...
ATTN...RFC...WGRFC...
https://twitter.com/NWSWPC
https://twitter.com/iembot_spc
https://twitter.com/NWSHouston
MESOSCALE PRECIPITATION DISCUSSION 0078
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1104 AM EDT WED MAR 28 2018
AREAS AFFECTED...SOUTH-CENTRAL TO SOUTHEAST TX
CONCERNING...HEAVY RAINFALL...FLASH FLOODING LIKELY
VALID 281500Z - 282100Z
SUMMARY...SHOWERS AND THUNDERSTORMS WITH INTENSE RAINFALL RATES OF
UP TO 2 INCHES/HR ARE EXPECTED TO BECOME MORE FOCUSED OVER THE
NEXT FEW HOURS. FLASH FLOODING IS LIKELY.
DISCUSSION...GOES-16 1-MINUTE WV IMAGERY SUITE SHOWS A FAVORABLY
DIVERGENT FLOW PATTERN ALOFT OVER MUCH OF SOUTH-CENTRAL TX OUT
AHEAD OF AN UPPER TROUGH EJECTING EAST OUT ACROSS THE SOUTHERN
HIGH PLAINS. THIS IS ALREADY FACILITATING UPSCALE GROWTH OF
CONVECTION IN AND AROUND THE GREATER SAN ANTONIO METROPOLITAN
AREA. CLOUD TOPS IN GENERAL WITH THIS CONVECTION AND ALSO
CONVECTION OVER SOUTHEAST TX TO THE NORTHWEST OF HOUSTON ARE
TENDING TO COOL AND GIVEN THE APPROACHING UPSTREAM DYNAMICS AND
PROXIMITY OF A GRADUALLY DESTABILIZING BOUNDARY LAYER...ADDITIONAL
CONVECTIVE ORGANIZATION IS LIKELY TO OCCUR.
THE STRONGER INSTABILITY PARAMETERS ARE CURRENTLY OVER
SOUTH-CENTRAL TX WITH MUCAPE VALUES OF 1000 TO 2000 J/KG. DIURNAL
HEATING SHOULD GRADUALLY ALLOW THIS INSTABILITY TO BECOME MORE
ROOTED NEAR THE SURFACE OVER THE NEXT SEVERAL HOURS...AND THIS
INSTABILITY IS EXPECTED TO POOL NORTHEASTWARD ALONG AN OUTFLOW
BOUNDARY SITUATED AHEAD OF A COLD FRONT. IN TIME...THE COLD FRONT
SHOULD SETTLE SOUTHEAST AND LIKELY WILL MERGE WITH THE OUTFLOW
BOUNDARY AND WILL FOSTER AN ENHANCED AXIS OF SURFACE CONVERGENCE.
THIS COUPLED WITH THE IMPROVING THERMODYNAMIC ENVIRONMENT AND
LARGER SCALE ASCENT IS EXPECTED TO RESULT IN A SW/NE AXIS OF
FOCUSED CONVECTION WITH POTENTIAL FOR TRAINING CELL ACTIVITY.
PWATS ARE RATHER HIGH WITH VALUES OF 1.5 TO 1.7 INCHES...BUT THE
CIRA-LPW DATA SETS CONFIRM A RATHER DEEP POOLING OF THE MOISTURE
WITH A NOTABLE EASTERN TROPICAL PACIFIC CONNECTION SEEN IN THE
500/300 MB LAYER. THIS SUPPORTS GREATER RAINFALL EFFICIENCY FOR
INTENSE RAINFALL RATES WHEN CONSIDERING THE VERY COLD CLOUD
TOPS/STRONG UPDRAFT SIGNALS. ADDITIONALLY...THE LATEST RAP
FORECASTS THE PERSISTENCE OF A MOIST 40 TO 45 KT S/SW LOW LEVEL
JET AHEAD OF THE MAIN COLD FRONT.
EXPECT RAINFALL RATES OF UP TO 2 INCHES/HR AS CONVECTION
ORGANIZES...AND WITH THE CONVECTION BECOMING MORE ALIGNED WITH THE
MEAN LAYER FLOW...TRAINING CONVECTION WILL FOSTER THE POTENTIAL
FOR AS MUCH AS 3 TO 6 INCHES OF RAIN AT LEAST LOCALLY THROUGH 21Z.
THIS IS CONSISTENT WITH THE LATEST HRRR OUTPUT. FLASH FLOODING
WILL BECOME LIKELY...AND ESPECIALLY OVER ANY AREAS THAT SAW HEAVY
RAINFALL EARLIER THIS MORNING AND LAST NIGHT.
ORRISON
ATTN...WFO...CRP...EWX...FWD...HGX...LCH...SHV...
ATTN...RFC...WGRFC...
Last edited by unome on Wed Mar 28, 2018 10:21 am, edited 1 time in total.
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srainhoutx
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We had some brief breaks in the clouds and some filtered sunshine occasionally over the past 45 minutes in NW Harris County. Discussing with HGX concerning slowly increasing instability across the areas S of the rain area. HGX states that instability is in fact slowly increasing from our S and SW where additional sunshine and warming is occurring.
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srainhoutx
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Just want to restate again for those concerned about this being a Major Flood Threat, it is not. Our partners at the NWS as well as County/City and Media are hitting this repeatedly today as calls of concern are coming in. I will continue to be very sensitive to those with post Harvey anxiety regarding Flooding issues. I hope everyone else does the same.
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GOES 16 does indeed show the low clouds are starting to scatter out to the south and west, and also offshore. This points to the severe threat increasing for this afternoon.
Jeff's & Houston OEM both doing a good job on Twitter as wellsrainhoutx wrote:Just want to restate again for those concerned about this being a Major Flood Threat, it is not. Our partners at the NWS as well as County/City and Media are hitting this repeatedly today as calls of concern are coming in. I will continue to be very sensitive to those with post Harvey anxiety regarding Flooding issues. I hope everyone else does the same.
https://twitter.com/JeffLindner1/status ... 1087398912
https://twitter.com/HoustonOEM/status/9 ... 9415330821
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srainhoutx
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Flood Advisory
National Weather Service Houston/Galveston TX
1051 AM CDT WED MAR 28 2018
Trinity TX-Burleson TX-Grimes TX-Washington TX-Brazos TX-
Montgomery TX-San Jacinto TX-Walker TX-
1051 AM CDT WED MAR 28 2018
The National Weather Service in League City has issued a
* Flood Advisory for...
Central Trinity County in southeastern Texas...
Southeastern Burleson County in southeastern Texas...
Central Grimes County in southeastern Texas...
Eastern Washington County in southeastern Texas...
Southeastern Brazos County in southeastern Texas...
Northwestern Montgomery County in southeastern Texas...
Northwestern San Jacinto County in southeastern Texas...
Central Walker County in southeastern Texas...
* Until 1145 AM CDT.
* At 1048 AM CDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause minor flooding of low lying and
poor drainage areas in the advisory area.
* Some locations that will experience flooding include...
Huntsville, Brenham, Navasota, Washington, Trinity, Groveton,
Riverside, Millican, Anderson, Sebastopol, Crabbs Prairie,
Independence, Quarry, Roans Prairie and Richards.
National Weather Service Houston/Galveston TX
1051 AM CDT WED MAR 28 2018
Trinity TX-Burleson TX-Grimes TX-Washington TX-Brazos TX-
Montgomery TX-San Jacinto TX-Walker TX-
1051 AM CDT WED MAR 28 2018
The National Weather Service in League City has issued a
* Flood Advisory for...
Central Trinity County in southeastern Texas...
Southeastern Burleson County in southeastern Texas...
Central Grimes County in southeastern Texas...
Eastern Washington County in southeastern Texas...
Southeastern Brazos County in southeastern Texas...
Northwestern Montgomery County in southeastern Texas...
Northwestern San Jacinto County in southeastern Texas...
Central Walker County in southeastern Texas...
* Until 1145 AM CDT.
* At 1048 AM CDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause minor flooding of low lying and
poor drainage areas in the advisory area.
* Some locations that will experience flooding include...
Huntsville, Brenham, Navasota, Washington, Trinity, Groveton,
Riverside, Millican, Anderson, Sebastopol, Crabbs Prairie,
Independence, Quarry, Roans Prairie and Richards.
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
Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
winds at different heights in Earth https://earth.nullschool.net/
surface https://earth.nullschool.net/#current/w ... 259,29.798
1000 hPa https://earth.nullschool.net/#current/w ... 259,29.798
850 hPa https://earth.nullschool.net/#current/w ... 259,29.798
700 hPa https://earth.nullschool.net/#current/w ... 259,29.798
500 hPa https://earth.nullschool.net/#current/w ... 259,29.798
Windy has similar tool, move the slider at right https://www.windy.com
Ventusky also, select height at left https://www.ventusky.com/
surface https://earth.nullschool.net/#current/w ... 259,29.798
1000 hPa https://earth.nullschool.net/#current/w ... 259,29.798
850 hPa https://earth.nullschool.net/#current/w ... 259,29.798
700 hPa https://earth.nullschool.net/#current/w ... 259,29.798
500 hPa https://earth.nullschool.net/#current/w ... 259,29.798
Windy has similar tool, move the slider at right https://www.windy.com
Ventusky also, select height at left https://www.ventusky.com/
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srainhoutx
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BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Houston/Galveston TX
1101 AM CDT WED MAR 28 2018
The National Weather Service in League City has issued a
* Severe Thunderstorm Warning for...
Northwestern San Jacinto County in southeastern Texas...
Southeastern Walker County in southeastern Texas...
* Until 1130 AM CDT.
* At 1100 AM CDT, a severe thunderstorm was located over Huntsville
State Park, or near Huntsville, moving northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to siding, and trees.
* Locations impacted include...
Huntsville, New Waverly, Huntsville State Park, Oakhurst and
Evergreen.
Severe Thunderstorm Warning
National Weather Service Houston/Galveston TX
1101 AM CDT WED MAR 28 2018
The National Weather Service in League City has issued a
* Severe Thunderstorm Warning for...
Northwestern San Jacinto County in southeastern Texas...
Southeastern Walker County in southeastern Texas...
* Until 1130 AM CDT.
* At 1100 AM CDT, a severe thunderstorm was located over Huntsville
State Park, or near Huntsville, moving northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to siding, and trees.
* Locations impacted include...
Huntsville, New Waverly, Huntsville State Park, Oakhurst and
Evergreen.
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
Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity