Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 8, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Mar 18, 1999, 9:31 AM CST for Kerr County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 18, 1999, 9:31 AM CST (15:31 UTC)
- Expired
- Mar 18, 1999, 12:30 PM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Kerr County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 3.5 hours before the alert went out and 163 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
- 923 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -130 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 181530 FFWSAT TXC265-181830- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 931 AM CST THU MAR 18 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... KERR COUNTY IN TEXAS * UNTIL 1230 PM CST * AT AT 925 AM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED DEVELOPING THUNDERSTORMS WITH VERY HEAVY RAIN BETWEEN HUNT AND KERRVILLE... MOVING NORTHEAST AT 20 MPH. * HEAVY THUNDERSTORMS WERE DEVELOPING BETWEEN HUNT AND KERRVILLE IN AN AREA WHERE ESTIMATED AMOUNTS OF NEAR 3 INCHES HAVE ALREAY BEEN OBSERVED BY RADAR. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! SECONDARY ROADS AN0D LOW WATER CROSSINGS WILL BE VERY DANGEROUS THE NEXT FEW HOURS AS RISES MOVE DOWN SMALL STREAMS AND CREEKS.
What forecasters said that day
The local office's own words before this flash flood 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 18, 5:30 AM CST, 4 hours 1 minute before
TXZ171>173-183>194-202>209-217>225-228-182300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 AM CST THU MAR 18 1999 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY OVER MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. A STRONG MOVING UPPER STORM SYSTEM OVER NEW MEXICO WAS MOVING SLOWLY EASTWARD INTO WEST TEXAS. THE STORMS ARE CAPABLE OF PRODUCING STRONG WINDS AND LARGE HAIL...AS WELL AS HEAVY RAIN. A LINE OF STRONG THUNDERSTORMS WITH HEAVY RAIN WAS ALREADY MOVING INTO THE WESTERN HILL COUNTRY PRODUCING LOCALLY HEAVY RAIN OVER REAL COUNTY. IN ADDITION...A COLD FRONT HAS PUSHED INTO SOUTHWEST TEXAS WHICH WILL BE VERY SLOW MOVING TODAY AND COULD HELP FOCUS HEAVY RAINS TODAY AND INTO THIS EVENING OVER MUCH OF THE AREA. AVERAGE RAINFALL AMOUNTS WILL RANGE FROM 1/2 TO 1 INCH WITH HIGHER TOTALS OF 2 TO 4 INCHES POSSIBLE DUE TO THE EXPECTED SLOW MOVEMENT OF THE COLD FRONT AND TRAINING OF STORMS FROM SOUTH TO NORTH. 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. FOR INFORMATION ON WEATHER THREATS IN AREAS SURROUNDING SOUTH CENTRAL TEXAS, PLEASE REFER TO THE HAZARDOUS WEATHER OUTLOOKS FROM NWS OFFICES IN MIDLAND, SAN ANGELO, FORT WORTH, HOUSTON/GALVESTON AND CORPUS CHRISTI.
Special weather statement, Mar 18, 5:30 AM CST, 4 hours 1 minute before
TXZ171>173-183>194-202>209-217>225-228-182300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 AM CST THU MAR 18 1999 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY OVER MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. A STRONG MOVING UPPER STORM SYSTEM OVER NEW MEXICO WAS MOVING SLOWLY EASTWARD INTO WEST TEXAS. THE STORMS ARE CAPABLE OF PRODUCING STRONG WINDS AND LARGE HAIL...AS WELL AS HEAVY RAIN. A LINE OF STRONG THUNDERSTORMS WITH HEAVY RAIN WAS ALREADY MOVING INTO THE WESTERN HILL COUNTRY PRODUCING LOCALLY HEAVY RAIN OVER REAL COUNTY. IN ADDITION...A COLD FRONT HAS PUSHED INTO SOUTHWEST TEXAS WHICH WILL BE VERY SLOW MOVING TODAY AND COULD HELP FOCUS HEAVY RAINS TODAY AND INTO THIS EVENING OVER MUCH OF THE AREA. AVERAGE RAINFALL AMOUNTS WILL RANGE FROM 1/2 TO 1 INCH WITH HIGHER TOTALS OF 2 TO 4 INCHES POSSIBLE DUE TO THE EXPECTED SLOW MOVEMENT OF THE COLD FRONT AND TRAINING OF STORMS FROM SOUTH TO NORTH. 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. FOR INFORMATION ON WEATHER THREATS IN AREAS SURROUNDING SOUTH CENTRAL TEXAS, PLEASE REFER TO THE HAZARDOUS WEATHER OUTLOOKS FROM NWS OFFICES IN MIDLAND, SAN ANGELO, FORT WORTH, HOUSTON/GALVESTON AND CORPUS CHRISTI.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 9:39 PM CST | Severe Thunderstorm Warning | EWX | Val Verde | 61 min |
| Mar 17, 10:46 PM CST | Severe Thunderstorm Warning | EWX | Val Verde | 59 min |
| Mar 17, 11:08 PM CST | Tornado Warning | EWX | Val Verde | 32 min |
| Mar 18, 12:49 AM CST | Severe Thunderstorm Warning | EWX | Val Verde | 76 min |
| Mar 18, 2:18 AM CST | Severe Thunderstorm Warning | EWX | Edwards | 72 min |
| Mar 18, 3:25 AM CST | Severe Thunderstorm Warning | EWX | Edwards | 60 min |
| Mar 18, 5:24 AM CST | Flash Flood Warning | EWX | Real | 3 hr |
| Mar 18, 8:47 AM CST | Flash Flood Warning | EWX | Gillespie | 3 hr |
| Mar 18, 9:46 AM CST | Flash Flood Warning | EWX | Llano | 3 hr |
| Mar 18, 12:10 PM CST | Flash Flood Warning | EWX | Gillespie | 110 min |
| Mar 18, 12:41 PM CST | Flash Flood Warning | EWX | Llano | 114 min |
| Mar 18, 2:49 PM CST | Flash Flood Warning | EWX | Llano | 2 hr |
Nearby
Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999
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.