Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 10, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Mar 26, 2002, 12:13 AM CST for Harris County, Liberty County, Texas. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 26, 2002, 12:13 AM CST (06:13 UTC)
- Expired
- Mar 26, 2002, 1:15 AM CST
- In force
- 62 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
Counties Harris County, TX, Liberty County, TX
The radar
The Houston radar (KHGX), 61 km from the middle of the area, began a volume at 06:15 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.
Did it verify
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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 25, 7:30 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.2 hours before the alert went out and 172 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 819 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 932 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 5.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KHGX 260613
SVRHOU
TXC201-291-260715-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1212 AM CST TUE MAR 26 2002
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
LIBERTY COUNTY IN SOUTHEAST TEXAS
NORTHEAST HARRIS COUNTY IN SOUTHEAST TEXAS
* UNTIL 115 AM CST
* AT 1206 AM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
JUST WEST OF CROSBY...MOVING NORTHEAST AT 20 MPH. EXPECT HAIL UP TO
QUARTER SIZE WITH THIS STORM.
* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
CROSBY
DAYTON
LIBERTY...KENEFICK
DAYTON LAKES
HARDIN
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 2995 9514 2989 9510 2986 9505 3014 9463
3032 9483What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 25, 10:05 PM CST, 2 hours 8 minutes earlier.
Area forecast discussion, Mar 25, 10:05 PM CST, 2 hours 8 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1005 PM CST MON MAR 25 2002 WILL SEND OUT A QUICK ZONE UPDATE. BASED ON CURRENT SATELLITE TRENDS AND LATEST MODEL DATA...EXPECT SOME CLEARING NORTHERN ZONES BY LATE TONIGHT AND HAVE DECIDED TO LOWER TEMPS THESE AREAS. WW REMAINS IN EFFECT UNTIL 07Z FOR ERN ZONES. FRONT HAS REACHED COASTAL SECTIONS OF GALVESTON/CHAMBERS COUNTIES. NEW ELEVATED CONVECTION DEVELOPING ACROSS HARRIS COUNTY BEHIND FRONT. WILL KEEP THE WATCH GOING FOR AT LEAST ANOTHER HOUR OR TWO UNTIL CONVECTION DIMINISHES OR MOVES OUT OF THE AREA. 35/30 .HGX...SCA BAYS AND COASTAL WATERS 0-60 NM TONIGHT AND TOMORROW. PRELIMS... CLL EB 040/066 042/070 048 000 IAH EB 047/067 044/072 049 700 GLS EB 055/065 051/068 056 700
In the hours before
Special weather statement, Mar 25, 8:05 PM CST, 4 hours 8 minutes before
TXZ164-178-179-199-200-213-214-237-238-260700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 805 PM CST MON MAR 25 2002 ...SEVERE THUNDERSTORM WATCH FOR PARTS OF SOUTHEAST TEXAS UNTIL 1 AM... THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR THE EASTERN PARTS OF SOUTHEAST TEXAS UNTIL 1 AM. THE WATCH IS IN EFFECT EAST OF A LINE FROM TRINITY TO HOUSTON TO LAKE JACKSON. THE FOLLOWING COUNTIES ARE IN THE WATCH...TRINITY...POLK...SAN JACINTO...MONTGOMERY...HARRIS...BRAZORIA...GALVESTON...LIBERTY...AND CHAMBERS. SOME COMMUNITIES INCLUDED IN THE WATCH ARE GROVETON...CORRIGAN... LIVINGSTON...COLDSPRING...CONROE...HOUSTON...LIBERTY...ANAHUAC... GALVESTON...AND LAKE JACKSON. A COLD FRONT IS PUSHING EAST ACROSS SOUTHEAST TEXAS. SCATTERED THUNDERSTORMS ARE DEVELOPING ALONG AND BEHIND THE FRONT. SOME OF THESE STORMS MAY BECOME SEVERE AS THE EVENING PROGRESSES. THE THREAT FOR SEVERE WEATHER WILL END LATER THIS EVENING. A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THUNDERSTORMS TO PRODUCE DAMAGING WIND GUSTS AND LARGE HAIL. A SEVERE THUNDERSTORM WARNING IS ISSUED WHEN SEVERE WEATHER IS IMMINENT OR OCCURRING. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR ADDITIONAL UPDATES AND POSSIBLE WARNINGS. IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM...MOVE INSIDE TO A REINFORCED STRUCTURE AND STAY AWAY FROM WINDOWS.
Special weather statement, Mar 25, 11:45 PM CST, 28 minutes before
TXZ164-178-179-199-200-213-214-237-238-260700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 1145 PM CST MON MAR 25 2002 ...SEVERE THUNDERSTORM WATCH FOR PARTS OF SOUTHEAST TEXAS HAS BEEN CANCELLED... THE SEVERE THUNDERSTORM WATCH THAT WAS IN EFFECT FOR EASTERN PORTIONS OF SOUTHEAST TEXAS HAS BEEN CANCELLED. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE EASTERN THIRD OF SOUTHEAST TEXAS FOR THE NEXT 2 OR 3 HOURS...BUT THE THREAT OF SEVERE WEATHER HAS ENDED FOR TONIGHT. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR ADDITIONAL UPDATES.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 7:27 PM CST | Severe Thunderstorm Warning | HGX | Trinity | 48 min |
| Mar 25, 8:16 PM CST | Severe Thunderstorm Warning | HGX | Polk | 44 min |
| Mar 25, 10:39 PM CST | Severe Thunderstorm Warning | HGX | Liberty, Montgomery | 51 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
Sources
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.