April 2015: Pleasant Weather To End April

Thu Apr 16, 2015 5:02 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
500 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* TORNADO WARNING FOR...
WALKER COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 530 PM CDT

* AT 459 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
3 MILES NORTH OF HUNTSVILLE...AND MOVING EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
NORTHERN HUNTSVILLE...RIVERSIDE AND CRABBS PRAIRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

Thu Apr 16, 2015 5:04 pm

04162015 mcd0316.gif

MESOSCALE DISCUSSION 0316
NWS STORM PREDICTION CENTER NORMAN OK
0459 PM CDT THU APR 16 2015

AREAS AFFECTED...PARTS OF EAST TX

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 162159Z - 162330Z

PROBABILITY OF WATCH ISSUANCE...60 PERCENT

SUMMARY...A WW MAY BE NEEDED ACROSS PARTS OF EAST TX /TO THE EAST OF
WW 60/ INTO WRN LA. ISOLATED TO SCATTERED STRONG TO SEVERE STORMS
WILL BE POSSIBLE ACROSS EAST TX AND WRN LA...WITH SPORADIC
OCCURRENCES OF LARGE HAIL AND/OR DAMAGING WINDS.

DISCUSSION...AT 2150Z...MOSAIC RADAR IMAGERY SHOWED AN EXTENSIVE
AREA OF CONVECTION/TSTMS ONGOING FROM SERN TX THROUGH CENTRAL/SRN LA
WITH THIS ACTIVITY LOCATED IN VICINITY OF A SURFACE WIND SHIFT.
ADDITIONAL STORMS WILL MOVE INTO THE DISCUSSION AREA FROM THE NERN
EXTENT OF WW 60. A SECOND W-E BOUNDARY APPEARS TO BE SITUATED FROM
30 S DAL TO 35 SSE TYR TO 30 WSW IER. THE ENVIRONMENT ACROSS EAST
TX INTO WRN LA HAS BECOME MODERATELY UNSTABLE THIS AFTERNOON WITH
EFFECTIVE BULK SHEAR PRESENTLY AT 30-35 KT...GIVEN STRONGER
MID-UPPER LEVEL WINDS. THIS PARAMETER SPACE IS FAVORABLE FOR
MULTICELLS AND SUPERCELLS WITH LARGE HAIL AND DAMAGING WINDS THE
PRIMARY THREATS. TORNADO THREAT SHOULD TEND TO BE LOW...SINCE
LOWER-TROPOSPHERIC WINDS ARE WEAKER IN THIS REGION PER VADS AT
SHV/POE.

GIVEN THE FAVORABLE ENVIRONMENT FOR SUSTAINED/ROBUST UPDRAFTS...THE
PRESENCE OF A COUPLED UPPER LEVEL JET OVER EAST TX INTO NRN LA AND
SRN AR INTO THIS EVENING WILL PROVIDE FOR STRONG VENTING AND
ADDITIONAL TSTM DEVELOPMENT.

..PETERS/CORFIDI.. 04/16/2015

ATTN...WFO...LCH...SHV...HGX...FWD...

Thu Apr 16, 2015 5:05 pm

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
504 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN JACKSON COUNTY IN SOUTH CENTRAL TEXAS...
WEST CENTRAL MATAGORDA COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 545 PM CDT

* AT 503 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR PORT ALTO...OR 11 MILES
NORTHEAST OF PORT LAVACA...AND MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
PALACIOS AND BLESSING.

Thu Apr 16, 2015 5:06 pm

Good grief it's thundering and dark outside!
Thank you for keeping us informed srain!
Be safe everyone.

Thu Apr 16, 2015 5:09 pm

My husband said they had heavy rain and hail this afternoon at I-10 and kirkwood. Thu far in Stafford, have just had some light rain and a few rumbles of thunder since I got home around 2pm.

Thu Apr 16, 2015 5:24 pm

Another Update from Jeff:

Extremely active weather event unfolding across SE TX.

Radar shows large clusters of slow moving strong to severe thunderstorms mainly north of I-10…or north of a stalled warm frontal boundary from Port Lavaca to Pearland to Baytown. Storms over SE Harris, Liberty, and Chambers Counties have produced 3-4 inches of rainfall this afternoon with radar showing 9-10 inches offshore of Sabine Pass, TX showing the capability of this air mass to produce tremendous rainfall rates. Monster HP supercell moving out of Calhoun County, TX toward Jackson and Matagorda Counties…but appears to be weakening or at least cycling at the moment. This cell is south of the warm front with pure rich Gulf inflow into its southern flank.

Main concern this evening will be areas north of I-10 for a flash flooding threat and a severe large hail threat. Thus far the main severe modes reported have been large hail…think the threat will transition to flooding rainfall this evening.

Significant round of storms looks likely Friday afternoon…with all severe modes possible….more later on that.

Flash Flood Watch issued until 700pm Friday.

Thu Apr 16, 2015 5:32 pm

FLOOD ADVISORY
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
531 PM CDT THU APR 16 2015

BURLESON TX-BRAZOS TX-
531 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLOOD ADVISORY FOR...
CENTRAL BURLESON COUNTY IN SOUTHEASTERN TEXAS...
WEST CENTRAL BRAZOS COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 630 PM CDT

* AT 530 PM CDT...DOPPLER RADAR INDICATED HEAVY RAIN DUE TO
THUNDERSTORMS. THIS WILL CAUSE MINOR FLOODING IN THE ADVISORY AREA.
BETWEEN ONE AND TWO INCHES OF RAIN HAVE FALLEN.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WESTERN COLLEGE STATION...WESTERN BRYAN...CALDWELL...SNOOK AND
CHRIESMAN.

Thu Apr 16, 2015 5:35 pm

The long tracking HP Supercell that produced a tornado West of Matagorda Bay is ramping up again in Jackson County. Movement is to the NE. Folks SW of Metro Houston need to monitor as a Tornado Warning could be issued at any time.

Thu Apr 16, 2015 5:36 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
535 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* TORNADO WARNING FOR...
JACKSON COUNTY IN SOUTH CENTRAL TEXAS...
MATAGORDA COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 615 PM CDT

* AT 534 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 7
MILES SOUTHWEST OF BLESSING...OR 7 MILES NORTHWEST OF PALACIOS...
AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
PALACIOS...SOUTH TEXAS NUCLEAR PLANT...MARKHAM...BLESSING AND
MIDFIELD.

Thu Apr 16, 2015 5:44 pm

Brazoria and Galveston Counties will be added to the Severe Thunderstorm Watch shortly.

Thu Apr 16, 2015 5:47 pm

WATCH COUNTY NOTIFICATION FOR WATCH 60
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
544 PM CDT THU APR 16 2015

TXC039-071-167-170300-
/O.EXA.KHGX.SV.A.0060.000000T0000Z-150417T0300Z/

THE NATIONAL WEATHER SERVICE HAS EXTENDED SEVERE THUNDERSTORM
WATCH 60 TO INCLUDE THE FOLLOWING AREAS UNTIL 10 PM CDT THIS
EVENING

IN SOUTHEAST TEXAS THIS WATCH INCLUDES 3 COUNTIES

BRAZORIA CHAMBERS GALVESTON

THIS INCLUDES THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...
FREEPORT...FRIENDSWOOD...GALVESTON...LAKE JACKSON...LEAGUE CITY...
MONT BELVIEU...PEARLAND...TEXAS CITY AND WINNIE.

Thu Apr 16, 2015 5:50 pm

FLOOD ADVISORY
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
548 PM CDT THU APR 16 2015

BURLESON TX-WASHINGTON TX-AUSTIN TX-WALKER TX-BRAZOS TX-WALLER TX-
MONTGOMERY TX-GRIMES TX-
548 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLOOD ADVISORY FOR...
SOUTHERN BURLESON COUNTY IN SOUTHEASTERN TEXAS...
WASHINGTON COUNTY IN SOUTHEASTERN TEXAS...
NORTHERN AUSTIN COUNTY IN SOUTHEASTERN TEXAS...
SOUTH CENTRAL WALKER COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN BRAZOS COUNTY IN SOUTHEASTERN TEXAS...
NORTHERN WALLER COUNTY IN SOUTHEASTERN TEXAS...
NORTHWESTERN MONTGOMERY COUNTY IN SOUTHEASTERN TEXAS...
SOUTHERN GRIMES COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 645 PM CDT

* AT 547 PM CDT...DOPPLER RADAR INDICATED HEAVY RAIN DUE TO
THUNDERSTORMS. THIS WILL CAUSE MINOR FLOODING IN THE ADVISORY
AREA. BETEEN ONE AND TWO INCHES OF RAIN HAVE FALLEN.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SOUTHEASTERN COLLEGE STATION...CONROE...SOUTHEASTERN HUNTSVILLE...
BRENHAM...NAVASOTA...HEMPSTEAD...WILLIS...PRAIRIE VIEW...
PINEHURST...THE WOODLANDS...WASHINGTON...PANORAMA VILLAGE...
MAGNOLIA...SOMERVILLE...NEW WAVERLY...PINE ISLAND...MONTGOMERY...
SNOOK...INDUSTRY AND BURTON.

Thu Apr 16, 2015 6:01 pm

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
558 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
SOUTHEASTERN LIBERTY COUNTY IN SOUTHEASTERN TEXAS...
NORTHEASTERN CHAMBERS COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 900 PM CDT

* AT 556 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO 4.5 INCHES OF RAIN HAVE
FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SOUTHERN LIBERTY...EASTERN MONT BELVIEU...ANAHUAC...OLD
RIVER-WINFREE...AMES...DAISETTA...COVE...DEVERS...HANKAMER AND
WALLISVILLE.

Thu Apr 16, 2015 6:13 pm

Long tracking Supercell that began near Corpus Christi continues its march E toward the Coastal Counties of SE Texas.

04162015 2230Z E TX LA VIS latest.jpg

Thu Apr 16, 2015 6:17 pm

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
615 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* TORNADO WARNING FOR...
MATAGORDA COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 645 PM CDT

* AT 614 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
NEAR MARKHAM...OR 7 MILES SOUTHWEST OF BAY CITY...AND MOVING
NORTHEAST AT 25 MPH. LARHE HAIL IS STILL LIKELY WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
BAY CITY...VAN VLECK AND MARKHAM.

Thu Apr 16, 2015 7:18 pm

The supercell over Matagorda County has continued to weaken over the last hour and no longer has any warnings in effect however an active weather evening continues across SE TX.

Thu Apr 16, 2015 7:53 pm

Severe Thunderstorm Warning
SEVERE THUNDERSTORM WARNING
TXC321-481-170115-
/O.NEW.KHGX.SV.W.0009.150417T0036Z-150417T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
736 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN WHARTON COUNTY IN SOUTHEASTERN TEXAS...
NORTHWESTERN MATAGORDA COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 815 PM CDT

* AT 736 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR EL CAMPO...AND
MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
EL CAMPO...WHARTON...PIERCE AND DANEVANG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

Thu Apr 16, 2015 8:00 pm

Somehow I've only had .32" so far. More on the way shortly though

Thu Apr 16, 2015 8:20 pm

This is going to be a long evening and night with more redevelopment currently taking place and a line to the west moving slowly east.

Thu Apr 16, 2015 8:44 pm

Tornado Watch issued for SE Texas until midnight. Stay alert folks.

April 2015: Pleasant Weather To End April

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