Severe Thunderstorm Warning 7, NWS Houston/Galveston, TX

Issued

Mar 25, 2002, 7:27 PM CST (01:27 UTC)

Expired

Mar 25, 2002, 8:15 PM CST

In force

48 min

Issued by

NWS Houston/Galveston, TX

Area

Counties, with a storm outline in the text

County Trinity County, TX

The Houston radar (KHGX), 179 km from the middle of the area, began a volume at 01:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WUUS54 KHGX 260127
SVRHOU
TXC455-260215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
725 PM CST MON MAR 25 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TRINITY COUNTY IN SOUTHEAST TEXAS

* UNTIL 815 PM CST

* AT 721 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7
  MILES SOUTHWEST OF GROVETON...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  GROVETON

HAIL UP TO 1 INCH IN DIAMETER IS POSSIBLE WITH THIS STORM.

MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. STAY AWAY FROM WINDOWS

PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 3102 9537 3089 9523 3116 9484 3131 9498

NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 25, 6:05 PM CST, 1 hour 22 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
605 PM CST MON MAR 25 2002

COLD FRONT EXTENDS FROM LUFKIN TO HOUSTON TO PALACIOS AT 545 PM. SPC
HAS ISSUED AN MCD FOR ERN ZONES FOR POSSIBILITY OF A FEW SEVERE
STORMS. LAPS ANALYSIS SHOWS WEAK WAVE OF LOW PRESSURE ALONG FRONT
JUST NORTH OF HOUSTON WITH LIS OF -4 TO -6 AND CAPES OF 1500 AHEAD
OF FRONT. WILL UPDATE ZFP TO INCREASE POPS FOR SERN PART OF CWA AND
ADD MENTION OF THUNDER. FRONT SHOULD MOVE OUT OF CWA BETWEEN 03 AND
04Z WITH THREAT OF CONVECTION ENDING AT THAT POINT.

35/30

PREVIOUS DISCUSSION...
WHILE THE FRONT HAS SLOWED SOME THIS AFTERNOON...IT IS STILL ON A
CLIP TO HIT THE COASTAL ZONES AT/AROUND SUNSET. TEMPERATURE DROPS
WITH FROPA HAVE BEEN IMPRESSIVE - RANGING FROM 15 TO 20 DEGREES F.
THE WAVE THAT DEVELOPED ALONG THE FRONT APPEARS TO BE PUSHING THE
SRN END OF THE BOUNDARY MORE THAN THE NRN HALF. OUT AHEAD OF (AND
TO SOME EXTENT BEHIND) THE COLD FRONT...SHOWERS CAN BE FOUND (BUT
NO LIGHTNING DETECTED SO FAR). WILL GO AHEAD AND KEEP CHANCE POPS
FOR THE CENTRAL/COASTAL LOCALES FOR THE EARLY PART OF THE EVENING.
THE MAIN PROBLEM FOR THIS PACKAGE APPEARS TO BE TIMING. THAT IS...
WHEN THE EXTENSIVE CLOUD DECK WILL BEGIN TO CLEAR OUT AND WHEN WE
WILL SEE THE NEXT WX SYSTEM (IN THE EXTENDED). AS FOR THE CURRENT
OVC DECK...SOME CLEARING IS POSSIBLE OVERNIGHT BUT EXPECT MOST OF
THE CLEARING TO OCCUR EARLY TOMORROW AS THE UPPER RIDGE BECOMES A
LITTLE  BETTER ESTABLISHED. BUT HAVING SAID THAT THIS RIDGE NEVER
SEEMS TO SETTLE IN PROPERLY DURING THE WEEK (PER THE LATEST PROGS)
AND APPEARS TO REMAIN A BIT ON THE FLAT SIDE. AND WITH THE SLOWER
CLEARING TREND...TOMORROW NIGHT LOOKS TO BE A TAD COLDER THAN TO-
NIGHT. AT THE SFC...AS HIGH PRESSURE MOVES OFF TO THE EAST THURS-
DAY WE SHOULD SEE A RETURN OF ONSHORE WINDS AT THAT TIME. FOR THE
EXTENDED (IF THE LONG RANGE PROGS ARE ANY WHERE NEAR CORRECT) THE
UPCOMING HOLIDAY WEEKEND LOOKS QUITE WET. 41/45/37

.HGX...SCA BAYS AND COASTAL WATERS 0-60 NM TONIGHT AND TOMORROW.

PRELIMS...
CLL EB 045/066 042/070 048 100
IAH EB 048/067 044/072 049 700
GLS EB 055/065 051/068 056 700

Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.