Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 18, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 30, 1997, 7:01 AM CST for Frio County, Texas. It was in force for 59 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
- Mar 30, 1997, 7:01 AM CST (13:01 UTC)
- Expired
- Mar 30, 1997, 8:00 AM CST
- In force
- 59 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Frio County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 30, 7:30 AM CST | Thunderstorm Wind | Pearsall, 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
Del Rio, TX (KDRT), launched 12:00Z, 1.0 hours before the alert went out and 177 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
- 1392 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 301304 RRA
SVRSAT
TXC163-301400-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
701 AM CST SUN MAR 30 1997
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 8 AM CST FOR PEOPLE
IN THE FOLLOWING LOCATION...
IN SOUTH CENTRAL TEXAS
...FRIO COUNTY...INCLUDING THE COMMUNITIES OF PEARSALL AND
DERBY...
AT 7 AM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
IN FRIO COUNTY BETWEEN PEARSALL AND DILLEY. THE STORM WAS
MOVING TOWARD THE SOUTHEAST AT 25 MPH. LARGE HAIL IS INDICATED
IN THIS STORM.
PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY
OF LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY
HEAVY RAIN CAN ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL
STREAMS...LOW AREAS...AND LOW WATER CROSSINGS. MOTORISTS ALONG IH35
BETWEEN MOORE AND DILLEY SHOULD BE ALERT TO REDUCED VISIBILITIES...
SLICK ROADS AND HAZARDOUS DRIVING CONDITIONS UNTIL THE STORM PASSES.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, Mar 30, 1:43 AM CST, 5 hours 18 minutes before
TXZ171>173-183>194-202>209-217>225-228-301145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 145 AM CST SUN MAR 30 1997 ...SEVERE THUNDERSTORM WATCH CANCELLED FOR SOUTH CENTRAL TEXAS... THE SEVERE THUNDERSTORM WATCH ISSUED EARLIER FOR SOUTH CENTRAL TEXAS HAS BEEN CANCELLED FOR ALL OF SOUTH CENTRAL TEXAS. THE WATCH IS NO LONGER IN EFFECT FOR: BANDERA...BASTROP...BLANCO...BRAZOS...BURNET...COMAL...EDWARDS... GILLESPIE...HAYS...KENDALL...KERR...LEE...LLANO...MEDINA...REAL... TRAVIS...UVALDE AND WILLIAMSON COUNTIES. A COLD FRONT CONTINUES TO MOVE SOUTHWARD TOWARD SOUTH CENTRAL TEXAS THIS MORNING. THE SEVERE THUNDERSTORM THREAT HAS ENDED AT THIS TIME. HOWEVER...SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED AHEAD...ALONG AND BEHIND THE FRONT THROUGH THE MORNING AND INTO TODAY. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.
Special weather statement, Mar 30, 1:45 AM CST, 5 hours 16 minutes before
TXZ171>173-183>194-202>209-217>225-228-301145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 145 AM CST SUN MAR 30 1997 ...SEVERE THUNDERSTORM WATCH CANCELLED FOR SOUTH CENTRAL TEXAS... THE SEVERE THUNDERSTORM WATCH ISSUED EARLIER FOR SOUTH CENTRAL TEXAS HAS BEEN CANCELLED FOR ALL OF SOUTH CENTRAL TEXAS. THE WATCH IS NO LONGER IN EFFECT FOR: BANDERA...BASTROP...BLANCO...BRAZOS...BURNET...COMAL...EDWARDS... GILLESPIE...HAYS...KENDALL...KERR...LEE...LLANO...MEDINA...REAL... TRAVIS...UVALDE AND WILLIAMSON COUNTIES. A COLD FRONT CONTINUES TO MOVE SOUTHWARD TOWARD SOUTH CENTRAL TEXAS THIS MORNING. THE SEVERE THUNDERSTORM THREAT HAS ENDED AT THIS TIME. HOWEVER...SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED AHEAD...ALONG AND BEHIND THE FRONT THROUGH THE MORNING AND INTO TODAY. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.
Special weather statement, Mar 30, 5:57 AM CST, 1 hour 4 minutes before
TXZ171>173-183>194-202>209-217>225-228-310000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 557 AM CST SUN MAR 30 1997 ...A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR MEDINA COUNTY UNTIL 645 AM CST... A COLD FRONT WILL CONTINUE TO MOVE THROUGH SOUTH CENTRAL TEXAS THIS MORNING. SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG AND BEHIND THIS FRONT TODAY AS IT MOVES INTO A MOIST AND UNSTABLE AIR MASS. SCATTERED SHOWERS WILL CONTINUE TONIGHT AS AN UPPER LEVEL WEATHER SYSTEM MOVES ACROSS THE AREA. ISOLATED TO WIDELY SCATTERED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS MORNING ALONG THE FRONT AS IT MOVES THROUGH SOUTH CENTRAL TEXAS. RAINFALL AMOUNTS OF 1/4 TO 1/2 INCH CAN BE EXPECTED TODAY FROM THESE SHOWERS AND THUNDERSTORMS. SCATTERED SHOWERS TONIGHT WILL AVERAGE LESS THAN 1/4 INCH OF PRECIPITATION. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECASTS...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNFORECAST HAZARDOUS WEATHER DEVELOPS OR IF FORECAST HAZARDOUS WEATHER NO LONGER IS EXPECTED.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 9:09 PM CST | Severe Thunderstorm Warning | EWX | Edwards | 66 min |
| Mar 29, 9:41 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 64 min |
| Mar 30, 5:51 AM CST | Severe Thunderstorm Warning | EWX | Medina | 54 min |
| Mar 30, 5:57 AM CST | Severe Thunderstorm Warning | EWX | Frio | 63 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.