Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 3, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Feb 9, 1990, 6:41 PM CST for Grimes County, Texas. It was in force for 49 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 9, 1990, 6:41 PM CST (00:41 UTC)
- Expired
- Feb 9, 1990, 7:30 PM CST
- In force
- 49 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Grimes County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 9, 7:15 PM CST | Hail 1.5 | Grimes, TX |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Stephenville/Cla, TX (KSEP), launched 00:00Z, 0.7 hours before the alert went out and 274 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 880 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -103 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Feb 9, 1:17 PM CST, 5 hours 24 minutes before
TXZ-032-092100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 120 PM CST FRI FEB 9 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PART OF NORTH CENTRAL...NORTHEASTERN...AND SOUTH CENTRAL TEXAS INCLUDING HOUSTON AND TRINTY COUNTIES FROM 100 PM CST THIS AFTERNOON UNTIL 600 PM THIS EVENING. NATIONAL WEATHER SERVICE RADARS INDICATED THUNDERSTORMS FROM AUSTIN TO EAST OF WACO MOVING NORTHEAST AT 4O MILE AN HOUR. THIS ACTIVITY IS EXPECTED TO INCREASE AND PROGRESS FURTHER EASTWARD DURING THE LATE AFTERNOON HOURS. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL NEWS MEDIA FOR FURTHER STATEMENTS ON THIS DEVELOPING WEATHER .
Special weather statement, Feb 9, 2:55 PM CST, 3 hours 46 minutes before
TXZ048-100300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GALVESTON TEXAS 255 PM CST FRI FEB 9 1990 ... A DENSE FOG ADVISORY REMAINS IN EFFECT FOR BOTH GALVESTON AND CHAMBERS COUNTIES..THE ADJACENT COASTAL WATERS AND GALVESTON BAY... DENSE FOG CONTINUES TO REDUCE VISIBILITIES TO NEAR ZERO OVER PORTIONS OF GALVESTON AND CHAMBERS COUNTIES..THE COASTAL WATERS AND GALVESTON BAY. ALTHOUGH SOME FOG-FREE AREAS MAY BE FOUND..NO SIGNIFICANT IMPROVEMENT IS FORESEEN BEFORE THE EXPECTED COLD FRONTAL PASSAGE LATE TONIGHT. MARINERS AND OPERATORS OF SMALL CRAFT SHOULD BE ON THE ALERT FOR AREAS OF SEVERELY REDUCED VISIBILITIES...ESPECIALLY IN THE HIGH-VOLUME TRAFFIC AREAS NEAR THE CHANNEL ENTRANCES AND ALONG THE INTRACOASTAL WATERWAY. THOSE VESSELS NOT EQUIPPED WITH PROPER NAVIGATIONAL SYSTEMS SHOULD REMAIN IN PORT. MOTORISTS SHOULD BE EQUALLY CAUTIOUS..ESPECIALLY ON THE CAUSEWAY AND ALONG THE SEAWALL. ARRIVE SAFELY BY REDUCING SPEE_D..INCREASING YOUR FOLLOWING DISTANCE AND BY USING LOW BEAM HEADLIGHTS TO REDUCE GLARE. STAY TUNED TO THIS NOAA WEATHER RADIO STATION FOR FURTHER STATEMENTS WHICH WILL BE ISSUED AS REQUIRED.
Special weather statement, Feb 9, 5:30 PM CST, 1 hour 11 minutes before
TXZ-032-037-045>047-100140- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 530 PM CST FRI FEB 9 1990 ...A TORNADO WATCH IS IN EFFECT FOR MOST OF SOUTHEAST TEXAS UNTIL 9 PM THIS EVENING... WEATHER SERVICE RADAR INDICATES A LINE OF STRONG THUNDRSTORMS DEVELOPING FROM NEAR SAN ANTONIO EASTWARD TO NEAR WASHINGTON COUNTY AND THEN NORTHEASTWARD OVER GRIMES COUNTY TO NORTH OF TOLEDO BEND LAKE. THUNDERSTORMS IN THIS LINE ARE MOVING TO THE EAST AT NEAR 45 MPH. WEATHER CONDITIONS ARE FAVORABLE FOR THUNDERSTORMS TO BECOME SEVERE VERY RAPIDLY OVER THE NEXT SEVERAL HOURS...AND RESIDENTS OF SOUTHEAST TEXAS ARE URGED TO LISTEN FOR FURTHER STATEMENTS AND/OR WARNINGS SHOULD THEY BECOME N`ECESSARY.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 9, 6:09 PM CST | Severe Thunderstorm Warning | HGX | Washington | 66 min |
| Feb 9, 7:06 PM CST | Severe Thunderstorm Warning | HGX | Waller | 69 min |
| Feb 9, 7:32 PM CST | Severe Thunderstorm Warning | HGX | Colorado | 28 min |
| Feb 9, 7:43 PM CST | Severe Thunderstorm Warning | HGX | Montgomery | 47 min |
| Feb 9, 8:19 PM CST | Severe Thunderstorm Warning | HGX | Harris | 26 min |
| Feb 9, 8:50 PM CST | Severe Thunderstorm Warning | HGX | Liberty | 55 min |
| Feb 9, 9:00 PM CST | Severe Thunderstorm Warning | HGX | Chambers | 90 min |
| Feb 9, 9:23 PM CST | Severe Thunderstorm Warning | HGX | Brazoria | 52 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990
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.