Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 67, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 21, 1999, 7:15 PM CDT for Frio 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
- Jun 21, 1999, 7:15 PM CDT (00:15 UTC)
- Expired
- Jun 21, 1999, 10:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Frio County, TX
The radar
The Laughlin AFB radar (KDFX), 122 km from the middle of the area, began a volume at 00:15 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.
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 0.3 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
- 2645 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 574 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 220029 RRA FFWSAT TXC163-220315- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 715 PM CDT MON JUN 21 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING... FRIO COUNTY IN TEXAS * UNTIL 1015 PM CDT RADAR INDICATED THUNDERSTORMS OVER WESTERN FRIO COUNTY PRODUCING INTENSE RAINS OF 2 TO 3 INCHES PER HOUR. THE THUNDERSTORMS WERE MOVING NORTH AT 25 MPH. EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
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
Local storm report, Jun 21, 1:40 PM CDT, 5 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
140 PM CDT MON JUN 21 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1230 PM TX FLOODING
06/21/99 BEXAR KOA CAMPGROUND LOWER LEVELS
FLOODED, SALADO CREEK
FLOODING THE ACCESS ROADS
AT I-35 AND LOOP 410
0120 PM TX FLOODING
06/21/99 REAL FARM ROAD 337 CLOSED
BETWEEN LEAKEY AND CAMP
WOOD
0120 PM TX FLOODING
06/21/99 UVALDE STATE HIGHWAY 55 CLOSED
NORTH OF UVALDELocal storm report, Jun 21, 1:40 PM CDT, 5 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
140 PM CDT MON JUN 21 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1230 PM TX FLOODING
06/21/99 BEXAR KOA CAMPGROUND LOWER LEVELS
FLOODED, SALADO CREEK
FLOODING THE ACCESS ROADS
AT I-35 AND LOOP 410
0120 PM TX FLOODING
06/21/99 REAL FARM ROAD 337 CLOSED
BETWEEN LEAKEY AND CAMP
WOOD
0120 PM TX FLOODING
06/21/99 UVALDE STATE HIGHWAY 55 CLOSED
NORTH OF UVALDESpecial weather statement, Jun 21, 6:11 PM CDT, 1 hour 4 minutes before
TXZ171>173-183>194-202>209-217>225-228-221100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 611 PM CDT MON JUN 21 1999 ...FLASH FLOOD WATCH EXTENDED THROUGH TONIGHT... A DEEP TAP OF MOISTURE FROM THE PACIFIC OCEAN AND GULF OF MEXICO CONTINUED ACROSS SOUTH CENTRAL TEXAS LATE THIS AFTERNOON...MAKING FOR TROPICAL CONDITIONS THROUGHOUT THE AREA. THIS TROPICAL AIRMASS IS PRIMED FOR CONTINUED DEVELOPMENT OF HEAVY RAINS WHICH MAY RESULT IN FLASH FLOODS. AN UPPER LEVEL DISTURBANCE SLOWLY MOVING ACROSS THE AREA LATE TONIGHT AND TUESDAY WITH GENERATE FURTHER SHOWERS AND THUNDERSTORMS. IN ADDITION...RAINFALL FROM THIS PAST WEEKEND AND TODAY HAS MADE SATURATED SOIL CONDITIONS OVER MUCH OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS...PARTICULARLY ALONG THE ESCARPMENT FROM AUSTIN TO SAN ANTONIO. ADDITIONAL MODERATE TO HEAVY RAINFALL WILL LIKELY RESULT IN RAPID RUNOFF AND FLASH FLOODING. ADDITIONAL RAINFALL AMOUNTS THROUGH TONIGHT COULD AVERAGE BETWEEN 1 AND 3 INCHES WITH ISOLATED TOTALS IN THE 4 TO 6 INCH RANGE. AS A RESULT...THE NATIONAL WEATHER SERVICE HAS EXTENDED THE FLASH FLOOD WATCH THROUGH TONIGHT. THE WATCH INCLUDES ALL OF SOUTH CENTRAL TEXAS...INCLUDING THE TEXAS HILL COUNTRY...THE EDWARDS PLATEAU AND THE NORTHERN RIO GRANDE PLAINS. THE WATCH INCLUDES THE METROPOLITAN AREAS OF AUSTIN AND SAN ANTONIO...AS WELL AS THE CITIES OF DEL RIO AND KERRVILLE. THIS WATCH MEANS FLOODING IS POSSIBLE WITHIN THE WATCH AREA. HEAVY RAINS MAY CAUSE THE RAPID RISE OF STREAMS AND RIVERS...FLOODING LOW LYING AREAS AND LOW WATER CROSSINGS. OVER FLATTER TERRAIN THE RAINS MAY CAUSE PONDING WHICH MAY FLOOD LOW LYING AREAS AND LOW ROADWAYS. PERSONS IN OR NEAR THE WATCH AREA...ESPECIALLY EMERGENCY MANAGERS... ARE URGED TO CHECK PREPAREDNESS REQUIREMENTS...KEEP INFORMED AND BE READY TO TAKE ACTION IF HEAVY RAIN OR FLOODING IS OBSERVED OR A WARNING IS ISSUED. CAMPERS AND OTHER OUTDOOR ENTHUSIASTS ARE URGED TO MONITOR THE WEATHER THROUGHOUT THE NIGHT AND BE PREPARED TO SEEK HIGHER GROUND SHOULD FLOODING BECOME IMMINENT. 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, Jun 21, 6:11 PM CDT, 1 hour 4 minutes before
TXZ171>173-183>194-202>209-217>225-228-221100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 611 PM CDT MON JUN 21 1999 ...FLASH FLOOD WATCH EXTENDED THROUGH TONIGHT... A DEEP TAP OF MOISTURE FROM THE PACIFIC OCEAN AND GULF OF MEXICO CONTINUED ACROSS SOUTH CENTRAL TEXAS LATE THIS AFTERNOON...MAKING FOR TROPICAL CONDITIONS THROUGHOUT THE AREA. THIS TROPICAL AIRMASS IS PRIMED FOR CONTINUED DEVELOPMENT OF HEAVY RAINS WHICH MAY RESULT IN FLASH FLOODS. AN UPPER LEVEL DISTURBANCE SLOWLY MOVING ACROSS THE AREA LATE TONIGHT AND TUESDAY WITH GENERATE FURTHER SHOWERS AND THUNDERSTORMS. IN ADDITION...RAINFALL FROM THIS PAST WEEKEND AND TODAY HAS MADE SATURATED SOIL CONDITIONS OVER MUCH OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS...PARTICULARLY ALONG THE ESCARPMENT FROM AUSTIN TO SAN ANTONIO. ADDITIONAL MODERATE TO HEAVY RAINFALL WILL LIKELY RESULT IN RAPID RUNOFF AND FLASH FLOODING. ADDITIONAL RAINFALL AMOUNTS THROUGH TONIGHT COULD AVERAGE BETWEEN 1 AND 3 INCHES WITH ISOLATED TOTALS IN THE 4 TO 6 INCH RANGE. AS A RESULT...THE NATIONAL WEATHER SERVICE HAS EXTENDED THE FLASH FLOOD WATCH THROUGH TONIGHT. THE WATCH INCLUDES ALL OF SOUTH CENTRAL TEXAS...INCLUDING THE TEXAS HILL COUNTRY...THE EDWARDS PLATEAU AND THE NORTHERN RIO GRANDE PLAINS. THE WATCH INCLUDES THE METROPOLITAN AREAS OF AUSTIN AND SAN ANTONIO...AS WELL AS THE CITIES OF DEL RIO AND KERRVILLE. THIS WATCH MEANS FLOODING IS POSSIBLE WITHIN THE WATCH AREA. HEAVY RAINS MAY CAUSE THE RAPID RISE OF STREAMS AND RIVERS...FLOODING LOW LYING AREAS AND LOW WATER CROSSINGS. OVER FLATTER TERRAIN THE RAINS MAY CAUSE PONDING WHICH MAY FLOOD LOW LYING AREAS AND LOW ROADWAYS. PERSONS IN OR NEAR THE WATCH AREA...ESPECIALLY EMERGENCY MANAGERS... ARE URGED TO CHECK PREPAREDNESS REQUIREMENTS...KEEP INFORMED AND BE READY TO TAKE ACTION IF HEAVY RAIN OR FLOODING IS OBSERVED OR A WARNING IS ISSUED. CAMPERS AND OTHER OUTDOOR ENTHUSIASTS ARE URGED TO MONITOR THE WEATHER THROUGHOUT THE NIGHT AND BE PREPARED TO SEEK HIGHER GROUND SHOULD FLOODING BECOME IMMINENT. 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.
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; radar from the NEXRAD Level II archive.