Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 216, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 9, 2002, 12:25 AM CDT for Atascosa County, Frio County, Medina County, Texas. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 9, 2002, 12:25 AM CDT (05:25 UTC)
- Expired
- Sep 9, 2002, 6:15 AM CDT
- In force
- 6 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
Counties Atascosa County, TX, Frio County, TX, Medina County, TX
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 5.4 hours before the alert went out and 188 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
- 565 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1453 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KEWX 090525 FFWSAT TXC013-163-325-091115- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1220 AM CDT MON SEP 9 2002 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS EXTENDED THE * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES... MEDINA ATASCOSA FRIO * UNTIL 615 AM CDT * AT 1220 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN 1FROM CHRISTINE TO PEARSALL AND YANCEY...ROTATING WEST AND SOUTHWEST AT 5 MPH AROUND THE REMNANTS OF TROPICAL DEPRESSION FAY. FARM ROAD 117 IN FRIO COUNTY REMAINS CLOSED AT THIS TIME. EXCESSIVE RUNOFF FROM THIS STORM 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. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. LAT...LON 2862 9902 2880 9828 2953 9932 2873 9936
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.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Sep 8, 8:00 PM CDT, 4 hours 25 minutes earlier.
Area forecast discussion, Sep 8, 8:00 PM CDT, 4 hours 25 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
800 PM CDT SUN SEP 8 2002
KEWX AND IR IMAGERY SHOW A GOOD BET FOR CORE RAINS IN THE TRIANGLE
BETWEEN SAT-CRYSTAL CITY-BEEVILLE A GOOD BET OVERNIGHT. LAST FEW VIS
IMAGES BEFORE SUNSET AND COOLING IR TEMPS SHOW VIGOROUS DEEP
CONVECTION FOCUSING AROUND THE CENTER OF FAYS REMNANTS. WILL
MAINTAIN THE CURRENT FORECAST OF 1 TO 3 INCHES COMMON OVER MUCH OF
SCNTRL TX...AND ISOLATED 5 TO 8 INCHES IN THE CORE RAIN AREA
OVERNIGHT. WILL MAKE SLIGHT CHANGES TO POPS BASED ON CURRENT AND
EXPECTED CONVECTION...BUT THE MAIN FORECAST IS IN GOOD SHAPE.
.EWX...FLASH FLOOD WATCH THROUGH 6 AM MONDAY FOR ALL EXCEPT THE
EXTREME WESTERN COUNTIES.
26/19/KW/JB
UPDATE PRELIMS...
AUS TB 072/085 072/087 072 585
DRT ET 074/088 074/088 074 337
SAT TB 072/087 072/088 073 +85In the hours before
Special weather statement, Sep 8, 9:07 PM CDT, 3 hours 18 minutes before
TXZ171>173-183>194-202>209-217>225-228-090500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 907 PM CDT SUN SEP 8 2002 ...RAINFALL TOTALS THROUGH 7 AM SUNDAY FOR TROPICAL DEPRESSION FAY... METROPOLITAN SAN ANTONIO BULVERDE 4SW THREE ACORN RANCH...1.95 SAN ANTONIO INTERNATIONAL AIRPORT...3.40 (7PM SUN) LOOP 1604 AND BULVERDE...2.75 WOODS OF SHAVANO...2.90 LOOP 410 AND BABCOCK...3.81 VANCE JACKSON AND DEZAVALA...2.65 BABCOCK AND LOOP 410...5.73 KELLY AIR FORCE BASE...6.03 BLANCO AND JACKSON KELLER...2.99 BROOK HOLLOW AND BRANDENBURG...3.18 (7PM SUN) HILDEBRAND AND MCCULLOUGH...5.31 (7PM SUN) BEACON AVENUE AND OLMOS DRIVE...5.92 (7PM SUN) FIVE PALMS AND ELK RUNNER...8.14 (7PM SUN) ZARZAMORA AND GILLETE...6.40 (7PM SUN) METROPOLITAN AUSTIN AUSTIN BERGSTROM INTERNATIONAL AIRPORT...0.95 AUSTIN CAMP MABRY...1.50 AUSTIN GREAT HILLS...2.00 GILLELAND CREEK NEAR MANOR...1.81 AUSTIN BARTON CREEK AT LOOP 360...1.51 GEORGETOWN MUNICIPAL AIRPORT...2.58 LAKE GEORGETOWN...2.59 LEANDER 5SW...3.20 SAN MARCOS MUNICIPAL AIRPORT...1.85 KERR COUNTY CAMP VERDE 3W...4.00 BLANCO COUNTY JOHNSON CITY...0.34 COMAL COUNTY CANYON LAKE DAM...2.99 LAVACA COUNTY SPEAKS...2.48 GONZALES COUNTY BELMONT...2.87 GUADALUPE RIVER...2.00 CHEAPSIDE...3.22 GONZALES 1N...2.00 UVALDE COUNTY SABINAL...3.77 (7PM SUN) CALDWELL COUNTY LULING 12NE...1.89 LULING ON THE SAN MARCOS RIVER...0.76 FAYETTE COUNTY LA GRANGE ON THE COLORADO RIVER...2.41 FLATONIA...2.24 MULDOON...2.53 DEWITT COUNTY YORKTOWN...2.89 BASTROP COUNTY COLORADO RIVER...0.50 CEDAR CREEK 4SE...1.36 ELGIN...4.35 GUADALUPE COUNTY KINGSBURY...2.27 NEW BRAUNFELS CENTRAL STATION...2.00 RAIN GAUGE SIX IN NEW BRAUNFELS...2.25 NEW BRAUNFELS 3 ENE...2.63 SEGUIN 8S...4.83 LEE COUNTY FEDOR...1.34 COUPELAND 6SE...1.24 KENDALL COUNTY BOERNE...4.41 LLANO COUNTY TOW 10 ESE...5.14 KARNES COUNTY KARNES CITY 2N...3.38 WILLIAMSON COUNTY ROUND ROCK...3.77 && KW
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 7:25 PM CDT | Flash Flood Warning | EWX | Medina | 3 hr |
| Sep 8, 8:57 PM CDT | Flash Flood Warning | EWX | Atascosa, Frio, Medina | 4 hr |
| Sep 9, 5:45 AM CDT | Flash Flood Warning | EWX | Frio | 3 hr |
| Sep 9, 6:01 AM CDT | Flash Flood Warning | EWX | Atascosa, Bexar | 3 hr |
| Sep 9, 8:48 AM CDT | Flash Flood Warning | EWX | Atascosa, Bexar, Frio, Karnes, Medina, Wilson | 3 hr |
| Sep 9, 11:16 AM CDT | Flash Flood Warning | EWX | DeWitt | 4 hr |
| Sep 9, 11:48 AM CDT | Flash Flood Warning | EWX | Bandera, Bexar, Comal, Gonzales, Guadalupe, Kendall and 1 more | 3 hr |
Nearby
Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002
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.