Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 13, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at Jan 31, 1998, 4:00 PM CST for Aransas County, Texas. It was in force for 90 min. 3 reports 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
- Jan 31, 1998, 4:00 PM CST (22:00 UTC)
- Expired
- Jan 31, 1998, 5:30 PM CST
- In force
- 90 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Whole counties
County Aransas County, TX
The radar
The Corpus Christi radar (KCRP), 50 km from the middle of the area, began a volume at 21:59 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 |
|---|---|---|---|
| Jan 31, 4:12 PM CST | Hail 0.75 | Rockport, TX | |
| Jan 31, 4:22 PM CST | Thunderstorm Wind 60 | Rockport, TX | Strong thunderstorm wind gusts reported by spotter. |
| Jan 31, 4:50 PM CST | Hail 0.75 | Rockport, 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 12:00Z, 10.0 hours before the alert went out and 41 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
- 318 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 686 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
081 WUUS1 KCRP 312203 RRA SVRCRP TXC007-312330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 400 PM CST SAT JAN 31 1998 THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 530 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY...... IN SOUTH CENTRAL TEXAS ...ARANSAS COUNTY AT 355 PM CST DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES NORTHWEST OF ROCKPORT OVER COPANO BAY. THIS STORM WAS MOVING SOUTHEAST AT 20 MPH AND WILL MOVE THROUGH THE CITIES OF ROCKPORT AND FULTON BY 425 PM CST. LARGE HAIL UP TO 1 INCH IN DIAMETER AND STRONG DAMAGING WINDS ARE LIKELY. MARINERS IN THE COASTAL WATERS OF ARANSAS BAY SHOULD MOVE TO SAFE HARBOR IMMEDIATELY. WIND GUSTS TO 45 KTS ARE POSSIBLE OVER THE OPEN WATER. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
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 Jan 31, 1:55 PM CST, 2 hours 5 minutes earlier.
Area forecast discussion, Jan 31, 1:55 PM CST, 2 hours 5 minutes before
COASTAL BEND FORECAST DISCUSSION...CORRECTED PRELIM 1ST PERIOD ZONES NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 155 PM CST SAT JAN 31 1998 BEEN BUSY SO WL KP IT AS SHORT AS TIME PERMITS. BASE REF LOOPS INDICATE LARGE AREA OF SHOWERS AND THUNDERSTORMS...WITH ONE CELL NEAR BEE AND LIVE OAK COUNTIES THAT HAS HELD A MESO FOR OVR AN HOUR NOW. MULTIPLE REPORTS OF MARBLE TO DIME SIZE HAIL FROM THREE RIVERS TO OAKVILLE. CONVECTION HAS BEEN SUPPORTED BY LOW AND MID LVL VERTICAL SHEAR AND SLIGHT TO MODERATE INSTABILITY AND SHUD PERSIST AS WEAKENING S/W TRACKS EWD THRU THIS AFTERNOON. TSRA WL BE FOCUSED ALONG A WARM FNT LOCATED FM N OF CRP TO SAT AND AHEAD OF WK SFC TROF WHICH IS NOTED FM ADAP SMC CHART SHOWS LARGE AREA OF MOISTURE CONVERGENCE FM DRT-LRD-CRP. S/W CURRENTLY PRODUCING SVR WX ACROSS THE NRN PRTNS OF THE COASTAL BEND IS PROGGED TO WEAKEN AND LIFT INTO NE TX BY 00Z SUN. FA WL SEE A BREAK IN THE PRECIP ACTIVITY...THEN BAJA S/W TRACKS EWD AND PROMOTES DEEPENING SWLY FLOW ALF AND ANOTHER SHOT OF PRECIP SUN INTO MON. MORE DETAILS WILL FOLLOW IN THE EVENING AFD. PRELIMINARY 1ST PERIOD ZONES... .CRP...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS OR TSTMS THIS EVENING. LOW FROM THE LOWER 60S COAST TO THE UPPER 50S INLAND. SE WIND NEAR 15 MPH AND GUSTY...BECOMING WEST 10 TO 15 MPH. .VCT...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND TSTMS THIS EVENING. LOW IN THE MID TO UPPER 50S. SOUTHEAST WIND NEAR 15 MPH AND GUSTY...BECOMING WEST 10 TO 15 MPH. .LRD...PARTLY TO MOSTLY CLOUDY. LOW IN THE UPPER 50S. WEST WIND 10 TO 15 MPH. PRELIMS... CRP 058/071/054/070 3331 NGP 062/070/058/068 3331 ALI 058/062/051/072 333- VCT 056/067/051/070 4441 LRD 058/072/052/072 -12- SRP --77-
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 31, 12:00 PM CST | Tornado Warning | CRP | Live Oak | 60 min |
| Jan 31, 1:00 PM CST | Severe Thunderstorm Warning | CRP | Bee | 60 min |
| Jan 31, 3:30 PM CST | Severe Thunderstorm Warning | CRP | Jim Wells | 60 min |
| Jan 31, 4:00 PM CST | Severe Thunderstorm Warning | CRP | Karnes | 90 min |
| Jan 31, 4:00 PM CST | Severe Thunderstorm Warning | CRP | Irion | 90 min |
| Jan 31, 4:55 PM CST | Severe Thunderstorm Warning | CRP | Kleberg | 65 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.