MAY 2019: Wednesday Storm Complex/Scattered Showers To End May

[unome]

https://twitter.com/DisasterPIO/status/ ... 2987714567

Francisco Sanchez
‏Verified account @DisasterPIO

UPDATE | @ReadyHarris will be LIVE at 3:00 PM from @HoustonTranStar with @JudgeHidalgo, @SylvesterTurner, @AdrianGarciaHTX and @JeffLindner1 to discuss potential severe weather expected through this weekend.
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#HouNews #HouWX #SevereWX

[Cpv17]

The humidity here in Wharton is downright miserable. And winds are almost completely calm.

[srainhoutx]

Latest from HGX...

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
248 PM CDT THU MAY 9 2019

.DISCUSSION...
FORECAST HIGHLIGHTS THROUGH THE END OF THE WEEK AND THROUGH THE WEEKEND:

- A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTHEAST TEXAS THROUGH
7 PM SATURDAY.
- FORECASTED RAINFALL TOTALS ARE STILL ABOUT 4 TO 8 INCHES
WIDESPREAD, WITH ISOLATED 9 TO 12 INCHES POSSIBLE. A LOT OF THIS
RAIN COULD FALL IN A VERY SHORT PERIOD OF TIME WHICH COLD LEAD
TO FLASH FLOODING.
- MINOR TO MODERATE RIVER FLOODING IS ONGOING AND IS EXPECTED TO
CONTINUE. CONDITIONS COULD WORSEN SIGNIFICANTLY DEPENDING ON
WHERE THE HEAVIEST RAINS FALL.
- THERE IS A SLIGHT RISK OF SEVERE STORMS THIS AFTERNOON AND
TONIGHT ACROSS NEARLY ALL OF SOUTHEAST TEXAS. THE PRIMARY
WEATHER HAZARDS ARE EXPECTED TO BE DAMAGING WINDS, HAIL AND
ISOLATED TORNADOES.

SHOWERS AND THUNDERSTORMS HAVE BEGUN TO DEVELOP OFF TO OUR EAST
AND OFF TO OUR WEST, AND IT IS ONLY A MATTER OF TIME UNTIL ACTIVITY
BEGINS TO FILL IN ACROSS OUR AREA. OUR DEVELOPING STORMS WILL HAVE
SOME STRONG/SEVERE POTENTIAL (SLIGHT RISK PER SPC'S DAY 1 SEVERE
WEATHER OUTLOOK) WITH DAMAGING WINDS, HAIL AND ISOLATED TORNADOES
POSSIBLE. DEVELOPING ACTIVITY IS EXPECTED TO EVOLVE INTO A
POTENTIAL HEAVY RAIN EVENT (RAINFALL RATES OF 2 TO 4 INCHES PER
HOUR OR HIGHER POSSIBLE) AS WE HEAD ON INTO THIS EVENING AND ON
THROUGH THE OVERNIGHT HOURS, AND THEN ONCE AGAIN AS WE HEAD ON
INTO A FRIDAY AFTERNOON THROUGH SATURDAY TIME PERIOD. THE
MOVEMENT/PLACEMENT OF A SLOW MOVING FRONTAL BOUNDARY IN OUR AREA
COULD BECOME A PLAYER AS TO WHERE THE HEAVIEST RAINFALL SETS UP -
MAYBE MORE CONCENTRATED IN/AROUND THE I-10 CORRIDOR OR MAYBE MORE
CONCENTRATED NEAR/ALONG THE COAST. WE WILL HAVE TO SEE HOW
EVERYTHING EVOLVES. FORECASTED RAINFALL TOTALS OF 4 TO 8 INCHES
ARE EXPECTED TO BE COMMON FOR THIS EVENT, AND SOME LOCATIONS COULD
SEE 9 TO 12 INCHES BEFORE THE HEAVIEST RAINS COME TO AN END SOME
TIME LATE SATURDAY OR EARLY SUNDAY.

THE FRONTAL BOUNDARY IN COMBINATION WITH SHORTWAVES, INCREASING LIFT
AND BUILDING PRECIPITABLE WATER VALUES (>2 INCHES AND GETTING CLOSE
TO 2.5 INCHES) WILL BE VERY SUPPORTIVE OF THE INTENSE RAINFALL RATES,
AND IF ANY OF THE ACTIVITY IS SLOW MOVING OR TRAINS, FLASH FLOODING
WILL BE LIKELY AS LOTS OF AREA GROUNDS REMAIN SATURATED FROM RECENT
RAINS.

RIVER FLOODING (MAINLY MINOR TO MODERATE RIGHT NOW) IS EXPECTED TO
CONTINUE. IF THE HEAVIEST RAINFALL ENDS UP IN/AROUND AREA BASINS,
CREEKS AND BAYOUS, CONDITIONS COULD WORSEN RATHER QUICKLY AND
SIGNIFICANTLY.

THIS COULD BE A MULTI-DAY EVENT, AND EVERY EFFORT SHOULD BE MADE
TO CLOSELY MONITOR THE WEATHER/FORECASTS/WARNINGS AS EVERYTHING
UNFOLDS. 42

[Texaspirate11]

The humidity here in Wharton is downright miserable. And winds are almost completely calm.

same here by the bay - its unbearable....

[sau27]

Surface observation just off the coast is showing an 80 degree dew point. VERY moist air our there

[srainhoutx]

WPC afternoon Updated 48 Hour Quantitative Precipitation Forecast...

[Texaspirate11]

87 degrees feels like 95 dew point at 74 and the sun is out...I got a bad feeling

[sambucol]

87 degrees feels like 95 dew point at 74 and the sun is out...I got a bad feeling

Me too.

[srainhoutx]

WPC afternoon Updated Excessive Rainfall Outlook for tomorrow..

[srainhoutx]

WPC expands Moderate Risk for Excessive Rainfall on Saturday to include most of our SE Texas area...

[MontgomeryCoWx]

Feels like 98 at BW8 and 290. Disgusting.

Lull before the bang.

[unome]

https://twitter.com/iembot_hgx/status/1 ... 1701948416

IEMBot HGX
‏ @iembot_hgx

HGX continues Flash Flood Watch for 32 forecast zones in [TX] till May 11, 7:00 PM CDT

https://mesonet.agron.iastate.edu/vtec/ ... 1905091800

Flood Watch
National Weather Service Houston/Galveston TX
323 PM CDT Thu May 9 2019

TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313-
335>338-436>438-101000-
/O.CON.KHGX.FF.A.0004.000000T0000Z-190512T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Austin-Brazoria Islands-Brazos-Burleson-Chambers-Coastal Brazoria-
Coastal Galveston-Coastal Harris-Coastal Jackson-
Coastal Matagorda-Colorado-Fort Bend-
Galveston Island and Bolivar Peninsula-Grimes-Houston-
Inland Brazoria-Inland Galveston-Inland Harris-Inland Jackson-
Inland Matagorda-Madison-Matagorda Islands-Montgomery-
Northern Liberty-Polk-San Jacinto-Southern Liberty-Trinity-Walker-
Waller-Washington-Wharton-
Including the cities of Alvin, Anahuac, Angleton, Bay City,
Baytown, Bellville, Brenham, Brookshire, Bryan, Caldwell,
Cleveland, Clute, Coldspring, College Station, Columbus, Conroe,
Corrigan, Crockett, Dayton, Devers, Dickinson, Eagle Lake, Edna,
El Campo, First Colony, Freeport, Friendswood, Galveston, Ganado,
Groveton, Hempstead, Houston, Huntsville, La Marque,
Lake Jackson, League City, Liberty, Livingston, Madisonville,
Mission Bend, Missouri City, Mont Belvieu, Navasota,
Old River-Winfree, Palacios, Pasadena, Pearland, Pecan Grove,
Prairie View, Rosenberg, Sealy, Shepherd, Somerville, Stowell,
Sugar Land, Surfside Beach, Texas City, The Woodlands, Trinity,
Waller, Weimar, Wharton, and Winnie
323 PM CDT Thu May 9 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY EVENING...

The Flash Flood Watch continues for

* Portions of south central Texas and southeast Texas...
including the following counties...in south central Texas...
Coastal Jackson and Inland Jackson. In southeast Texas...
Austin...Brazoria Islands...Brazos...Burleson...Chambers...
Coastal Brazoria...Coastal Galveston...Coastal Harris...
Coastal Matagorda...Colorado...Fort Bend...Galveston Island
and Bolivar Peninsula...Grimes...Houston...Inland Brazoria...
Inland Galveston...Inland Harris...Inland Matagorda...
Madison...Matagorda Islands...Montgomery...Northern Liberty...
Polk...San Jacinto...Southern Liberty...Trinity...Walker...
Waller...Washington and Wharton.

* Through Saturday evening

* Multiple rounds of potentially heavy rainfall are anticipate
through the watch period. The first round of storms could occur
later this afternoon through Friday morning as a front moves
through the area. A second round of storms could occur late
Friday into Saturday evening. Forecasted rainfall event totals
estimate about 4 to 8 inches widespread, with isolated 9 to 12
inches possible. Soils remain saturated from recent rainfall, so
any additional rainfall should run off quickly and cause flooding.

* Based on the rainfall totals and rainfall rates that we are
anticipating during these two main waves of heavy rainfall
this weekend, we will be using the following Flash Flood
messaging throughout the course of this event. Messaging may
need to be scaled up if more extreme rainfall rates occur.
Stay Put. Do not attempt to travel. Underpasses and low-water
crossings will be life-threatening. If caught in a sinking
vehicle, get OUT. Bayous will likely exceed banks and
structure flooding could be possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

[stormlover]

Let’s just hope the nam is wrong

[djmike]

Training over Beaumont the last hour. This lightning is intense!

[djmike]

Training over Beaumont the last hour. This lightning is intense!

1” in 15 min and still pouring. This training is back building and beaumont looks to be in it for a while at the moment.

[Rip76]

Strange it hasn’t blown up over Houston yet.

[srainhoutx]

WPC Updated Excessive Rainfall Outlook from now until tomorrow morning...

[Cpv17]

WPC Updated Excessive Rainfall Outlook from now until tomorrow morning...

Wonder if they will break out that pink color?

[MontgomeryCoWx]

WPC Updated Excessive Rainfall Outlook from now until tomorrow morning...

That's impressive coverage. Wow.

[Ounce]

Lake Houston water level at 1:30 p.m. today is 43.28 feet or 1.17 feet lower than its height of 44.45 feet on Tuesday. Monday's level was 42.65 feet. On August 29, 2017 it was at 52.28 feet.

Lake Conroe water level at 2:30 p.m. today is 201.33 feet or 0.11 feet lower than its height on Tuesday. On August 27, 2017 it was at 205.58 feet.