Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 145, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 26, 1998, 8:03 PM CDT for Blanco County, Texas. It was in force for 62 min. 2 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
- Apr 26, 1998, 8:03 PM CDT (01:03 UTC)
- Expired
- Apr 26, 1998, 9:05 PM CDT
- In force
- 62 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Blanco County, TX
The radar
The Austin/San Antonio radar (KEWX), 72 km from the middle of the area, began a volume at 01:05 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, 8:40 PM CDT | Hail 0.75 | Blanco, TX | |
| Apr 26, 8:40 PM CDT | Thunderstorm Wind | Countywide, 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 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, 7:45 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 1.1 hours before the alert went out and 256 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
- 530 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 3149 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 270103 RRA SVRSAT TXC031-270205- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 803 PM CDT SUN APR 26 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BLANCO COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 905 PM CDT * AT 8 PM CDT... A SEVERE THUNDERSTORM WAS INDICATED NEAR ROUND MOUNTAIN... BY NATIONAL WEATHER SERVICE RADAR... MOVING SOUTHEAST 40 MPH. * THE SEVERE THUNDERSTORM IS EXPECTED TO BE NEAR- CYPRESS MILL AT 815 PM CDT PEDERNALES FALLS STATE PARK AT 830 PM CDT SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH... DESTRUCTIVE HAIL... DEADLY LIGHTNING... AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, Apr 26, 5:00 PM CDT, 3 hours 3 minutes before
TXZ171>173-183>194-202>209-217>225-228-271200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 500 PM CDT SUN APR 26 1998 ...TORNADO WATCH IN EFFECT UNTIL 9 PM CDT FOR A PORTION OF THE TEXAS HILL COUNTRY AND CENTRAL TEXAS... SCATTERED SHOWERS OR THUNDERSTORMS...SOME POSSIBLY SEVERE... ARE FORECAST THIS EVENING FOR A PORTION OF THE HILL COUNTRY AND CENTRAL TEXAS. AMOUNTS WILL AVERAGE NEAR A QUARTER OF AN INCH. NO RAIN OF IMPORTANCE IS EXPECTED MONDAY. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. 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 OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.
Special weather statement, Apr 26, 5:00 PM CDT, 3 hours 3 minutes before
TXZ171>173-183>194-202>209-217>225-228-271200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 500 PM CDT SUN APR 26 1998 ...TORNADO WATCH IN EFFECT UNTIL 9 PM CDT FOR A PORTION OF THE TEXAS HILL COUNTRY AND CENTRAL TEXAS... SCATTERED SHOWERS OR THUNDERSTORMS...SOME POSSIBLY SEVERE... ARE FORECAST THIS EVENING FOR A PORTION OF THE HILL COUNTRY AND CENTRAL TEXAS. AMOUNTS WILL AVERAGE NEAR A QUARTER OF AN INCH. NO RAIN OF IMPORTANCE IS EXPECTED MONDAY. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. 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 OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 7:12 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 58 min |
| Apr 26, 8:30 PM CDT | Severe Thunderstorm Warning | EWX | Travis | 90 min |
| Apr 26, 8:40 PM CDT | Tornado Warning | EWX | Travis | 90 min |
| Apr 26, 9:49 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop | 61 min |
| Apr 27, 3:29 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 31 min |
| Apr 27, 3:56 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 34 min |
| Apr 27, 5:49 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 61 min |
| Apr 27, 4:47 PM CDT | Severe Thunderstorm Warning | EWX | Fayette, Lee | 63 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.