Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 40, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at Feb 18, 1998, 11:18 PM CST for Aransas County, Calhoun County, Texas. It was in force for 57 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 18, 1998, 11:18 PM CST (05:18 UTC)
- Expired
- Feb 19, 1998, 12:15 AM CST
- In force
- 57 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Whole counties
Counties Aransas County, TX, Calhoun County, TX
The radar
The Corpus Christi radar (KCRP), 82 km from the middle of the area, began a volume at 05:20 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 |
|---|---|---|---|
| Feb 18, 11:45 PM CST | Hail 0.75 | Seadrift, 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.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 5.3 hours before the alert went out and 74 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
- 274 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 794 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.0
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.
NWS Corpus Christi, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 18, 8:10 PM CST, 3 hours 8 minutes earlier.
Area forecast discussion, Feb 18, 8:10 PM CST, 3 hours 8 minutes before
COASTAL BEND FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 810 PM CST WED FEB 18 1998 NO TIME TO TALK. WILL UPDATE VCT AREA WITH 40% POPS SOME SVR. WILL UPDATE CRP ZONES...WITH 30% POPS...SOME SVR FOR STORMS FIRING TO THE NW. WILL UPDATE LASALLE...MCMULLEN AND DUVAL WITH 30% CHC OF STORMS...SOME SVR BASED ON LATEST TRENDS AND BACKBUILDING INTO FRIO COUNTY. WEBB COUNTY LOOKS TO GET MISSED. COULD BE A LONG EVENING. JM...075
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 6:22 PM CST | Tornado Warning | CRP | Live Oak | 68 min |
| Feb 18, 7:27 PM CST | Severe Thunderstorm Warning | CRP | Goliad | 63 min |
| Feb 18, 8:00 PM CST | Tornado Warning | CRP | Goliad | 45 min |
| Feb 18, 8:29 PM CST | Severe Thunderstorm Warning | CRP | Victoria | 76 min |
| Feb 18, 8:38 PM CST | Tornado Warning | CRP | Refugio | 67 min |
| Feb 18, 9:03 PM CST | Tornado Warning | CRP | Calhoun | 57 min |
| Feb 18, 9:24 PM CST | Severe Thunderstorm Warning | CRP | Live Oak | 66 min |
| Feb 18, 9:31 PM CST | Severe Thunderstorm Warning | CRP | La Salle | 44 min |
| Feb 18, 10:02 PM CST | Severe Thunderstorm Warning | CRP | Bee, Goliad | 58 min |
| Feb 18, 10:40 PM CST | Severe Thunderstorm Warning | CRP | Refugio, Victoria | 50 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.