Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 90, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 1, 2001, 7:45 PM CDT for Harris County, Texas. It was in force for 45 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 1, 2001, 7:45 PM CDT (00:45 UTC)
- Expired
- Jun 1, 2001, 8:30 PM CDT
- In force
- 45 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Harris County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 1, 8:10 PM CDT | Thunderstorm Wind | Houston, TX | News media reported street signs and trees down between the Medical Center and downtown Houston. |
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 00:00Z, 0.8 hours before the alert went out and 218 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
- 606 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 1827 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KHGX 020047 SVRHOU TXC201-020130- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 745 PM CDT FRI JUN 1 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HARRIS COUNTY IN SOUTHEAST TEXAS * UNTIL 830 PM CDT * AT 742 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR DOWNTOWN HOUSTON. LITTLE MOVEMENT WAS NOTED. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... I-10/I-45...HOUSTON AND THE MEDICAL CENTER. 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 2975 9550 2962 9535 2976 9531 2983 9541
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 1, 2:56 PM CDT, 4 hours 49 minutes earlier.
Area forecast discussion, Jun 1, 2:56 PM CDT, 4 hours 49 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 256 PM CDT FRI JUN 1 2001 WW ISSUED FOR AREAS JUST WEST OF OUR CWA FOR STORMS MOVING TOWARD SOUTH CENTRAL TX. DO NOT EXPECT THESE STORMS TO AFFECT SE TX THIS EVENING...SO WILL NOT MENTION POPS IN ZONES. WINDS ACROSS THE CWA STILL LIGHT AND VARIABLE...BUT SHOULD BECOME SOUTH TO SOUTHEAST THIS EVENING. BY TONIGHT SFC TO 850MB FLOW WILL BE FROM THE SE. RETURN FLOW LOOKS OKAY FOR THE SEA BREEZE TO SET UP TOMORROW...AND THE CAP IS WEAK ENOUGH FOR SOME CONVECTION TO BE POSSIBLE. AFTER THAT...WILL HOLD OFF ON ANY PRECIP UNTIL NEXT WEEK. TUESDAY AND WEDNESDAY STILL LOOK LIKE THE BEST CHANCE FOR PRECIP... WITH INCREASED PWS AND THE FRONT FORECAST TO MOVE THROUGH THE CWA. MODEL SOUNDINGS INDICATE POTENTIAL FOR FOG DEVELOPMENT TONIGHT. WILL MENTION PATCHY FOG ALL ZONES EXCEPT ALONG THE COAST. 48/45/WT .HGX...NONE. PRELIMS... CLL BB 072/093 072/093 073 -22 IAH BB 073/091 074/091 074 -22 GLS BB 077/086 078/086 079 -22
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.