Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 27, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this severe thunderstorm warning at Apr 26, 1997, 2:40 AM CDT for McMullen County, Texas. It was in force for 65 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
- Apr 26, 1997, 2:40 AM CDT (07:40 UTC)
- Expired
- Apr 26, 1997, 3:45 AM CDT
- In force
- 65 min
- Issued by
- NWS Corpus Christi, TX
- Area
- Whole counties
County McMullen County, TX
The radar
The Corpus Christi radar (KCRP), 122 km from the middle of the area, began a volume at 07:42 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 |
|---|---|---|---|
| Apr 26, 3:30 AM CDT | Hail 1.75 | Tilden, TX | NWS spotter report of golfball sized hail. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 26, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 7.7 hours before the alert went out and 139 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
- 3687 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 518 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
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 Apr 26, 2:03 AM CDT, 37 minutes earlier.
Area forecast discussion, Apr 26, 2:03 AM CDT, 37 minutes before
COASTAL BEND FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 200 AM CDT SAT APR 26 1997 ...FLASH FLOOD WATCH FOR ALL OF SOUTH TX... STRONG UPPER LOW IN NORTHERN MEXICO WILL CAUSE SEVERE/FLASH FLOOD EVENT FOR SOUTH TX THE NEXT 36 HOURS. LOW WILL REMAIN NEARLY STATIONARY OR EVEN SINK A LITTLE FURTHER SOUTH BEFORE IT KICKS OUT TO THE NORTHEAST TONIGHT AND SUNDAY. AT THE SFC...COOL FRONT WILL REMAIN JUST SOUTH OF SOUTH TX AND ALONG THE TEXAS COAST. THIS BOUNDRY WILL BE THE FOCUS FOR VERY HEAVY RAINS. ECHO TRAINING LIKELY. UPPER LOW WILL BE SENDING OUT NUMEROUS DISTURBANCES TOWARD SOUTH TEXAS WITH HIGH UVVS. DUE TO THE LOCATION OF THE SFC FRONT LOW LEVEL CONVERGENCE WILL BE BEST OVER THE AREA. THUS TSRA WILL BE NUMEROUS. PWS WILL BE NEAR THE 1.5 RANGE. THUS FLASH FLOODING POSSIBLE. WILL ISSUE FFA FOR ALL AREAS. 3 TO 5 INCH RAINS LIKELY ESPECIALLY CRP AND VCT AREAS. RAIN TO END FROM WEST TO EAST LATE ON SUNDAY INTO SUNDAY NIGHT... ZONES...FFA ALL AREAS...SEVERE ALL AREAS TODAY...CRP AND VCT TONIGHT... VCT...TODAY...CLOUDY 90 CHANCE RA/TSRA. NORTHEAST 10-20 MPH. TONIGHT...CLOUDY 60 CHANCE OF RA/TSRA. NORTHEAST 15 MPH. SUNDAY...CLOUDY 70 CHANCE RA/TSRA. NORTHEAST WIND 15 MPH. CRP...TODAY...CLOUDY 90 CHANCE RA/TSRA. NORTHEAST WIND 15-20 MPH. TONIGHT...CLOUDY 60 CHANCE OF RA/TSRA. NORTHEAST 15-20. SUNDAY...CLOUDY 70 CHANCE OF RA/TSRA. NORTHEAST WIND 15-20. LRD...TODAY...CLOUDY 80 CHANCE RA/TSRA. NORTH 15 MPH. TONIGHT...CLOUDY 50 CHANCE RA/TSRA. NORTH WIND 10-15. SUNDAY...CLOUDY 60 CHANCE RA/TSRA. NORTH 10-20 MPH. TEMPS AND POPS... CRP 070/062 070/055 9673 NGP 070/062 068/058 VCT 069/059 066/052 9674 LRD 073/059 070V/055 8562 LUNA...0074
In the hours before
Special weather statement, Apr 25, 11:59 PM CDT, 2 hours 41 minutes before
TXZ229-230>234-239>247-260600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 1159 PM CDT FRI APR 25 1997 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED... THE SEVERE THUNDERSTORM WATCH THAT WAS IN EFFECT UNTIL 200 AM CDT FOR NUECES...SAN PATRICIO...REFUGIO...ARANSAS...BEE... VICTORIA...GOLIAD...AND CALHOUN COUNTIES HAS BEEN CANCELLED. NO SHOWER OR THUNDERSTORM ACTIVITY IS OCCURRING IN THE CORPUS CHRISTI OR VICTORIA AREAS AT THIS TIME...HOWEVER STRONG THUNDERSTORMS HAVE DEVELOPED JUST SOUTHEAST OF LAREDO DURING THE PAST HOUR. OTHER STRONG THUNDERSTORMS WERE LOCATED NEAR DEL RIO AND EXTEND SOUTHWESTWARD INTO MEXICO. THIS ACTIVITY IS ASSOCIATED WITH A STRONG UPPER-LEVEL LOW PRESSURE SYSTEM THAT WILL CONTINUE TO PRODUCE SHOWERS AND POSSIBLY SEVERE THUNDERSTORMS FOR THE REMAINDER OF TONIGHT AS WELL AS SATURDAY. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER STATEMENTS... OR POSSIBLE WATCHES OR WARNINGS.
Special weather statement, Apr 26, 12:00 AM CDT, 2 hours 40 minutes before
TXZ229-230>234-239>247-260600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 1159 PM CDT FRI APR 25 1997 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED... THE SEVERE THUNDERSTORM WATCH THAT WAS IN EFFECT UNTIL 200 AM CDT FOR NUECES...SAN PATRICIO...REFUGIO...ARANSAS...BEE... VICTORIA...GOLIAD...AND CALHOUN COUNTIES HAS BEEN CANCELLED. NO SHOWER OR THUNDERSTORM ACTIVITY IS OCCURRING IN THE CORPUS CHRISTI OR VICTORIA AREAS AT THIS TIME...HOWEVER STRONG THUNDERSTORMS HAVE DEVELOPED JUST SOUTHEAST OF LAREDO DURING THE PAST HOUR. OTHER STRONG THUNDERSTORMS WERE LOCATED NEAR DEL RIO AND EXTEND SOUTHWESTWARD INTO MEXICO. THIS ACTIVITY IS ASSOCIATED WITH A STRONG UPPER-LEVEL LOW PRESSURE SYSTEM THAT WILL CONTINUE TO PRODUCE SHOWERS AND POSSIBLY SEVERE THUNDERSTORMS FOR THE REMAINDER OF TONIGHT AS WELL AS SATURDAY. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER STATEMENTS... OR POSSIBLE WATCHES OR WARNINGS.
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 8:58 PM CDT | Flash Flood Warning | CRP | Duval | 4 hr |
| Apr 25, 9:17 PM CDT | Severe Thunderstorm Warning | CRP | McMullen | 58 min |
| Apr 26, 12:06 AM CDT | Severe Thunderstorm Warning | CRP | Webb | 54 min |
| Apr 26, 12:59 AM CDT | Severe Thunderstorm Warning | CRP | La Salle, Webb | 61 min |
| Apr 26, 2:00 AM CDT | Flash Flood Warning | CRP | Webb | 4 hr |
| Apr 26, 2:53 AM CDT | Severe Thunderstorm Warning | CRP | Duval | 67 min |
| Apr 26, 3:37 AM CDT | Tornado Warning | CRP | Duval | 38 min |
| Apr 26, 4:29 AM CDT | Severe Thunderstorm Warning | CRP | Jim Wells | 31 min |
| Apr 26, 4:38 AM CDT | Severe Thunderstorm Warning | CRP | San Patricio | 37 min |
| Apr 26, 4:43 AM CDT | Severe Thunderstorm Warning | CRP | Live Oak | 32 min |
| Apr 26, 4:59 AM CDT | Severe Thunderstorm Warning | CRP | Bee | 46 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997
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.