Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 216, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Nov 1, 1998, 5:28 AM CST for Travis County, Texas. It was in force for 47 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
- Nov 1, 1998, 5:28 AM CST (11:28 UTC)
- Expired
- Nov 1, 1998, 6:15 AM CST
- In force
- 47 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Travis County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 11.5 hours before the alert went out and 281 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
- 689 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 236 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 7.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 011129 SVRSAT TXC453-011215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 528 AM CST SUN NOV 1 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TRAVIS COUNTY IN TEXAS * UNTIL 615 AM CST * AT 525 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS ALONG THE I35 CORRIDOR IN AUSTIN...MOVING EAST AT 30 MPH. * DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS!
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 Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 31, 8:10 PM CST, 9 hours 18 minutes earlier.
Area forecast discussion, Oct 31, 8:10 PM CST, 9 hours 18 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 810 PM CST SAT OCT 31 1998 FEW SHOWERS OF EARLIER TODAY HAVE MOSTLY DISSIPATED ALONG WITH MUCH OF THE LOWEST LEVEL STRATOCUMULOUS CLOUDS...ALTHO A BROKEN DECK STILL REMAINS OVER MUCH OF THE AREA. ALL IN ALL THO A RATHER TRANQUIL EVENING ACROSS THE CWA AS ALL OF THE SIGNIFICANT WEATHER AND ASSOCIATED NASTIES REMAIN WELL NORTHWEST OF HERE. STILL A LOT OF UNCERTAINTY FOR US HERE AS FAR AS WHAT WILL ACTUALLY HAPPEN WITH THE WEATHER ASSOCIATED WITH THE FRONT...AND WHEN THE FRONT WILL ACTUALLY PASS. EVENING SOUNDING SHOWING THINGS MOISTENING UP...BELEIVE WE WILL HAVE NO PROBLEM GENERATING SOME SHOWERS OR STORMS TOMORROW...EVEN WITH PROGGED WEAK DYNAMICS BY THE MODELS. THAT SAID...CURRENT FORECAST STILL LOOKS GOOD WITH THE LOW CHANCE POPS TONIGHT...THEN HIGHER TOMORROW. IF THINGS SPEED UP CONSIDERABLY ...COULD POSSIBLY SEE SOME ACTIVITY MAKING IT TO OUR WESTERN FRINGE TOWARD MORNING...BUT THINK AT THE MOMENT THE 20 POP WILL DO. SO WILL NOT ADVOCATE ANY CHANGES AT THE PRESENT TIME. VALONE...61
In the hours before
Special weather statement, Nov 1, 12:01 AM CST, 5 hours 27 minutes before
TXZ171>173-183>194-202>209-217>225-228-011200- HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1201 AM CST SUN NOV 1 1998 THERE CONTINUES TO BE A RISK OF SEVERE THUNDERSTORMS TONIGHT AND INTO SUNDAY AS A PACIFIC COLD FRONT MOVES THROUGH THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS. SEVERE THUNDERSTORMS MAY PRODUCE DAMAGING WINDS AND LARGE HAIL...ALONG WITH LOCALLY HEAVY RAIN. AVERAGE RAINFALL RATES WILL BE AROUND ONE-HALF INCH AN HOUR WITH ISOLATED AMOUNTS OF ONE TO TWO INCHES OR MORE POSSIBLE IN THE HEAVIER THUNDERSTORMS. SHOWERS AND THUNDERSTORMS ASSOCIATED WITH AN UPPER AIR DISTURBANCE AND ITS ASSOCIATED COLD FRONT...CONTINUES TO DEVELOP OVER WEST TEXAS. THIS AREA OF WEATHER IS FORECASTED TO MOVE INTO THE WESTERN PORTIONS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS TONIGHT AND CONTINUE MOVING SLOWLY ACROSS THE REGION INTO SUNDAY MORNING... POSSIBLY SPILLING OVER INTO PART OF SUNDAY AFTERNOON. SOME STORMS MAY BE SEVERE...AND LOCALLY HEAVY RAIN IS POSSIBLE. AS ALWAYS...CAUTION IS ADVISED AT LOW WATER CROSSINGS OR WHERE ROADS PASS THROUGH LOW LYING AREAS...WHERE LOCALLY HEAVY RAIN CAN CAUSE FLOODING. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT WWW.SRH.NOAA.GOV/EWX. TIMELY DELIVERY OF DATA AND PRODUCTS FROM THIS SERVER THROUGH THE INTERNET IS NOT GUARANTEED... UNLIKE DATA AND PRODUCTS DELIVERED FROM THE OFFICIAL NATIONAL WEATHER SERVICE SOURCES. THE OFFICIAL SOURCE OF NATIONAL WEATHER SERVICE DATA AND PRODUCTS IS THE NOAA WEATHER RADIO...NOAA WEATHER WIRE...FAMILY OF SERVICES, AND EMWIN. THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO... OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: SOUTHWEST TEXAS FROM MIDLAND LBBSPSMAF...WWUS35 KMAF CONCHO VALLEY FROM SAN ANGELO LBBSPSSJT...WWUS35 KSJT NORTH TEXAS FROM FORT WORTH FTWSPSFTW...WWUS35 KFTW SOUTHEAST TEXAS FROM HOUSTON/GALVESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Nov 1, 5:11 AM CST, 17 minutes before
TXZ171>173-183>194-202>209-217>225-228-011345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 511 AM CST SUN NOV 1 1998 ...COLD FRONT...SHOWERS AND THUNDERSTORMS MOVING THROUGH SOUTH CENTRAL TEXAS... A COLD FRONT CONTINUES TO MOVE THROUGH SOUTH CENTRAL TEXAS THIS MORNING...AS SHOWERS AND THUNDERSTORMS REMAIN ALONG AND AHEAD OF THE FRONT. THE COLD FRONT WILL MOVE THROUGH AUSTIN AND SAN ANTONIO WITHIN THE NEXT HOUR. EXPECT BRIEF HEAVY RAINFALL...STRONG GUSTY WINDS...AND A 10 T0 15 DEGREE TEMPERATURE DROP. THE CHANCE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE MORNING HOURS. THE PRECIPITATION WILL MOVE SOUTH OF THE AREA...AND BY THIS AFTERNOON SKIES WILL BECOME SUNNY. TEMPERATURES WILL REMAIN NEAR NORMAL TODAY AND TONIGHT. THE BRIEF HEAVY RAINFALL WILL CAUSE LOW WATER CROSSINGS TO FLOOD AND MOTORISTS ARE URGED NOT TO CROSS FLOODED ROADWAYS. ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 1, 6:40 AM CST | Severe Thunderstorm Warning | EWX | Lee | 30 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.