Alert archive / Texas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 89, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 14, 2007, 3:44 PM CDT for Harris County, Texas. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 14, 2007, 3:44 PM CDT (20:44 UTC)
- Expired
- May 14, 2007, 4:29 PM CDT
- In force
- 45 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
County Harris County, TX
The radar
The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 20:45 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.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.7 hours before the alert went out and 213 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
- 614 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 1552 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 May 14, 3:15 PM CDT, 29 minutes earlier.
Area forecast discussion, May 14, 3:15 PM CDT, 29 minutes before
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</html>Hazardous weather outlook, May 14, 5:49 AM CDT, 9 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 549 AM CDT MON MAY 14 2007 TXZ163-164-176>179-195>200-210>214-226-227-235>238-151200- AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND- GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA- MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON- WHARTON- 549 AM CDT MON MAY 14 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND EVENING...MAINLY IN CONJUNCTION WITH THE SEA BREEZE. THERE IS A SLIGHT CHANCE OF AN ISOLATED SEVERE STORM BETWEEN 4 AND 8 PM WITH THE MAIN THREAT BEING LARGE HAIL AND DAMAGING WIND GUSTS. .DAY TWO...TUESDAY ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE TUESDAY AFTERNOON AND EVENING. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAY THREE...WEDNESDAY SCATTERED THUNDERSTORMS WILL DEVELOP ALONG AND AHEAD OF A WEAKENING COLD FRONT WEDNESDAY AND WEDNESDAY NIGHT AND THERE IS A SLIGHT RISK FOR SEVERE STORMS DURING THE AFTERNOON AND EARLY EVENING. THE MAIN THREAT WILL BE LARGE HAIL AND DAMAGING WINDS. DAYS FOUR THROUGH SEVEN...THURSDAY THROUGH SUNDAY ISOLATED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED TO RETURN BY SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED DURING THE LATE AFTERNOON AND EARLY EVENING PERIOD TODAY.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 3:10 PM CDT | Severe Thunderstorm Warning | HGX | Chambers | 35 min |
| May 14, 3:28 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Galveston | 47 min |
| May 14, 5:01 PM CDT | Severe Thunderstorm Warning | HGX | Harris | 21 min |
| May 14, 5:05 PM CDT | Severe Thunderstorm Warning | HGX | Harris | 40 min |
| May 14, 5:15 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 45 min |
| May 14, 5:18 PM CDT | Severe Thunderstorm Warning | HGX | Liberty | 42 min |
| May 14, 5:32 PM CDT | Severe Thunderstorm Warning | HGX | Polk, Trinity | 43 min |
| May 14, 5:40 PM CDT | Severe Thunderstorm Warning | HGX | Montgomery | 50 min |
| May 14, 5:51 PM CDT | Severe Thunderstorm Warning | HGX | Polk | 39 min |
| May 14, 6:20 PM CDT | Severe Thunderstorm Warning | HGX | Trinity | 23 min |
| May 14, 6:30 PM CDT | Severe Thunderstorm Warning | HGX | San Jacinto | 45 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2007Every severe thunderstorm warning in 2007
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.