Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 101, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 26, 2001, 3:15 PM CDT for Harris County, Texas. It was in force for 60 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jun 26, 2001, 3:15 PM CDT (20:15 UTC)
- Expired
- Jun 26, 2001, 4:15 PM CDT
- In force
- 60 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Harris County, TX
The radar
The Houston radar (KHGX), 55 km from the middle of the area, began a volume at 20:17 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 26, 3:45 PM CDT | Hail 0.75 | Aldine, TX | Dime size hail at Beltway 8 and The Hardy Toll Road. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.3 hours before the alert went out and 215 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
- 2097 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 803 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KHGX 262018 SVRHOU TXC201-262115- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 315 PM CDT TUE JUN 26 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HARRIS COUNTY IN SOUTHEAST TEXAS * UNTIL 415 PM CDT * AT 307 PM CDT...DOPPLER RADAR INDICATED 2 SEVERE THUNDERSTORMS. THE FIRST WAS ALONG THE NORTHWEST CORNER OF LOOP 610 AND THE 2ND ON THE NORTHEAST CORNER. THEY WERE BOTH EXPANDING AS THE MOVED NORTH AT 5 MPH. THESE STORMS MAY COLLIDE AS THEY EXPAND...LEADING TO WINDS IN EXCESS OF 60 MPH AND TORRENTIAL DOWNPOURS. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... NORTHERN HALF OF CENTRAL HARRIS COUNTY...HILSHIRE VILLAGE...SPRING VALLEY...ALDINE...SHELDON...BUSH-INTERCONTINENTAL AIRPORT...SPRING...HUMBLE 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 2979 9560 2972 9526 2992 9506 3012 9556
What 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 Jun 26, 2:45 PM CDT, 30 minutes earlier.
Area forecast discussion, Jun 26, 2:45 PM CDT, 30 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 245 PM CDT TUE JUN 26 2001 COMBINATION OF SEABREEZE FRONT..DAYTIME HEATING AND OUTFLOW BOUNDARIES HAS RESULTED IN SCATTERED SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST TEXAS TODAY. OUTFLOWS AND SEABREEZE FRONT CONTINUE TO MOVE INLAND (NOW GETTING NORTH OF INTERSTATE 10) WHICH SHOULD ALLOW FOR SOME MORE STORMS TO POP UP NORTH DURING THE REST OF THE AFTERNOON AND THE EVENING HOURS. EXPECT ACTIVITY TO WEAKEN AND DISSIPATE THIS EVENING...START UP AGAIN NEAR THE COAST AND COASTAL COUNTIES OVERNIGHT...AND MOVE INLAND DURING THE DAY AGAIN TOMORROW. WITH FURTHER MOISTURE INCREASES ACROSS THE AREA AND MORE UNSTABLE SOUNDINGS...EXPECT TO SEE A LITTLE MORE COVERAGE TOMORROW (SEE PRELIM POPS BELOW). WEDNESDAY'S SEVERE THUNDERSTORM RISK (SEE SPC'S DAY 2 OUTLOOK) IS TEASINGLY CLOSE TO OUR EASTERN COUNTIES...AND MODEL SOUNDINGS DO SHOW SOME SIGNS OF A POSSIBLE SEVERE RISK (CAPES 3000-4000 AND LI'S -6 TO -9) FOR OUR AREA. AT THIS TIME...PREFER TO NOT INCLUDE SEVERE IN THE ZONES AND LET ANOTHER MODEL RUN OR TWO ARRIVE BEFORE DECISION TIME. FORECAST EXPECTED TO BECOME A LITTLE TRICKIER BEGINNING ON THURSDAY AND ON INTO THE WEEKEND AS THE UPPER LOW TO OUR NORTHEAST MAKES PROGRESS FURTHER WEST AND THEN SOUTH TOWARD TEXAS. ENERGY WILL ROTATE AROUND THIS SYSTEM AND WILL EVENTUALLY MOVE ACROSS TEXAS FROM NORTH TO SOUTH. IF THE TIMING IS RIGHT...SOME OF THIS ENERGY WILL COMBINE WITH DAYTIME HEATING AND THE INSTABILITY ASSOCIATED WITH THE LOW ITSELF TO PRODUCE SOME HEFTY RAINS AND POSSIBLE SEVERE STORMS ACROSS PORTIONS OF SOUTHEAST TEXAS. WILL CONTINUE TO MENTION CHANCE POPS IN THE EXTENDED. LATEST 6 TO 10 DAY AND 8 TO 14 DAY CPC OUTLOOKS CONTINUE TO PLACE OUR AREA IN BELOW NORMAL TEMPERATURES AND ABOVE NORMAL PRECIP. THROUGH JUN 25TH...IAH IS 14.61 INCHES ABOVE NORMAL IN RAINFALL FOR THE YEAR. 42/31/DH .HGX...NONE. PRELIMS... CLL BB 072/090 072/090 072 232 IAH BB 071/090 072/090 072 243 GLS BB 078/087 078/087 078 243
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 3:47 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend | 58 min |
| Jun 26, 4:15 PM CDT | Severe Thunderstorm Warning | HGX | Liberty | 45 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.