Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 50, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Feb 10, 1998, 2:15 PM CST for Chambers County, Texas. It was in force for 30 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
- Feb 10, 1998, 2:15 PM CST (20:15 UTC)
- Expired
- Feb 10, 1998, 2:45 PM CST
- In force
- 30 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Chambers County, TX
The radar
The Houston radar (KHGX), 47 km from the middle of the area, began a volume at 20:15 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 10, 10:00 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.3 hours before the alert went out and 149 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
- 380 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 709 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
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.
NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 10, 2:05 PM CST, 10 minutes earlier.
Area forecast discussion, Feb 10, 2:05 PM CST, 10 minutes before
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</html>In the hours before
Special weather statement, Feb 10, 9:34 AM CST, 4 hours 41 minutes before
GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214- 226-227-235>238-102130- SEVERE WEATHER OUTLOOK FOR SOUTHEAST TEXAS NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 934 AM CST TUE FEB 10 1998 ...A VERY RAPIDLY DEVELOPING DANGEROUS SEVERE WEATHER EVENT IS GOING TO BE MOVING INTO SOUTHEAST TEXAS LATE THIS MORNING AND INTO THE AFTERNOON... A HIGH RISK OF SEVERE WEATHER WILL BE PRESENT FROM MAINLY ALONG AND SOUTH OF I-10 FROM NEAR RICHMOND TO LIBERTY. A NUMBER OF INGREDIENTS ARE RAPIDLY COMING TOGETHER...A VIGOROUS UPPER LEVEL LOW PRESSURE AREA OVER THE HILL COUNTRY AND A VERY STRONG JETSTREAM INTERACTION AND DEEP MOISTURE RACING INLAND FROM THE GULF WILL MERGE OVER THE REGION. STRONG TURNING IN THE LOWER ATMOSPHERE WILL FAVOR THE RAPID DEVELOPMENT OF THUNDERSTORMS AND A HIGH LIKELYHOOD OF TORNADOES IF YOU PLAN TO BE OUTDOORS THIS AFTERNOON...CHECK THE LATEST WEATHER INFORMATION AND KEEP A WEATHER EYE ON THE SKY. IF YOU OBSERVE SEVERE WEATHER PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. REMEMBER...THE ACTIONS YOU TAKE DURING A TORNADO EVENT MAY SAVE YOUR LIFE AND THE LIVES OF YOUR FAMILY.
Special weather statement, Feb 10, 9:54 AM CST, 4 hours 21 minutes before
GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214- 226-227-235>238-102240- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 954 AM CST TUE FEB 10 1998 ...A TORNADO WATCH IS IN EFFECT FOR ALL OF SOUTHEAST TEXAS THROUGH 4 PM... A PARTICULARLY DANGEROUS SEVERE WEATHER SITUATION IS EVOLVING...VERY STRONG WINDS IN THE LOWER LEVELS OF THE ATMOSPHERE THAT CHANGE FROM THE SOUTHEAST AT THE SURFACE TO THE WEST IN THE MID-LEVELS OF THE ATMOSPHERE WILL FAVOR THE RAPID DEVELOPMENT OF SEVERE THUNDERSTORMS AND THE FORMATION OF TORNADOES. A LARGE AREA OF THUNDERSTORMS OVER THE HILL COUNTRY WILL CONTINUE TO MOVE TO THE EAST AND WILL LIKELY BECOME ORGANIZED INTO A SQUALL LINE BRINGING WIDESPREAD DAMAGING WINDS AND BRIEF ISOLATED TORNADOES AS IT MOVE INTO THE AREA LATE THIS MORNING AND EARLY THIS AFTERNOON. STORMS THAT DEVELOP AHEAD OF THE SQUALL LINE WILL LIKELY TAKE ON SUPERCELL CHARACTERISTICS THAT WOULD SUPPORT LONGER LIVED TORNADOES ALONG WITH THE THREAT OF MICORBURST WINDS AND LARGE HAIL. PERSONS IN THE WATCH AREA SHOULD BE ON THE LOOK OUT FOR SEVERE WEATHER AND KEEP UP WITH THE LATEST WARNINGS ISSUED. IF YOU OBSERVE SEVERE WEATHER REPORT IT TO YOUR LOCAL SHERIFFS OFFICE AS SOON AS THE THREAT HAS SAFELY DIMINISHED.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 10, 10:29 AM CST | Severe Thunderstorm Warning | HGX | Colorado, Jackson, Wharton | 96 min |
| Feb 10, 11:20 AM CST | Severe Thunderstorm Warning | HGX | Austin, Fort Bend, Waller | 60 min |
| Feb 10, 11:26 AM CST | Severe Thunderstorm Warning | HGX | Brazoria, Fort Bend, Harris | 64 min |
| Feb 10, 11:26 AM CST | Severe Thunderstorm Warning | HGX | Galveston | 64 min |
| Feb 10, 11:42 AM CST | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 73 min |
| Feb 10, 11:48 AM CST | Flash Flood Warning | HGX | Brazoria, Fort Bend, Harris | 3 hr |
| Feb 10, 11:51 AM CST | Tornado Warning | HGX | Fort Bend, Harris | 64 min |
| Feb 10, 12:14 PM CST | Tornado Warning | HGX | Harris | 61 min |
| Feb 10, 12:26 PM CST | Severe Thunderstorm Warning | HGX | Brazoria, Chambers, Galveston | 64 min |
| Feb 10, 12:26 PM CST | Severe Thunderstorm Warning | HGX | Liberty | 64 min |
| Feb 10, 12:31 PM CST | Severe Thunderstorm Warning | HGX | San Jacinto | 94 min |
| Feb 10, 12:49 PM CST | Severe Thunderstorm Warning | HGX | Liberty, Polk | 71 min |
| Feb 10, 1:05 PM CST | Tornado Warning | HGX | Chambers, Harris, Liberty | 65 min |
| Feb 10, 1:12 PM CST | Severe Thunderstorm Warning | HGX | Trinity | 63 min |
| Feb 10, 1:30 PM CST | Severe Thunderstorm Warning | HGX | Brazoria, Galveston | 65 min |
| Feb 10, 1:44 PM CST | Tornado Warning | HGX | Galveston | 46 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998
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.