Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 85, NWS San Angelo, TX

October 25, 2002Crockett County, Texas

NWS San Angelo, TX issued this flash flood warning at Oct 25, 2002, 11:55 AM CDT for Crockett 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 outline as issued.

The facts

Issued: Oct 25, 2002, 11:55 AM CDT (16:55 UTC)
Expired: Oct 25, 2002, 2:45 PM CDT
In force: 3 hr
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Crockett 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 12:00Z, 4.9 hours before the alert went out and 156 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 246 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 570 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KSJT 251655
FFWSJT
TXC105-251945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
1155 AM CDT FRI OCT 25 2002

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CROCKETT COUNTY IN SOUTHWEST TEXAS

* UNTIL 245 PM CDT

* AT 1130 AM CDT...LAW ENFORCEMENT OFFICERS REPORTED THAT FLOODING   
  OF LOW WATER CROSSINGS WAS STILL OCCURRING OVER PORTIONS OF        
  CROCKETT COUNTY AND SEVERAL HIGHWAYS IN THE COUNTY...INCLUDING     
  SOUTH HOWARD DRAW ROAD...HIGHWAY 137 AND HIGHWAY 163 HAD WATER     
  OVER THE ROADWAY. SOME ROADS WERE CLOSED.

* AT 1150 AM...WEATHER SERVICE DOPPLER RADAR SHOWED SCATTERED        
  LIGHT TO MODERATE RAIN SHOWERS OVER CROCKETT COUNTY. 

DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THE WATER DEPTH
MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. DO NOT ATTEMPT TO
DRIVE AROUND BARRICADES. MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3062 10159 3032 10163 3033 10099 3105 10101
          3106 10197

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 San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Oct 25, 9:30 AM CDT, 2 hours 25 minutes earlier.

Area forecast discussion, Oct 25, 9:30 AM CDT, 2 hours 25 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE SAN ANGELO TX
930 AM CDT FRI OCT 25 2002

KSJT RADAR SHOWS SHOWERS AND THUNDERSTORMS ACROSS THE NORTHERN
EDWARDS PLATEAU...IN THE HEARTLAND COUNTIES. NUMEROUS ROADS ACROSS
THE NORTHERN EDWARDS PLATEAU HAVE BEEN CLOSED DUE TO FLOODING.

FLASH FLOOD WATCH WAS JUST ISSUED DUE TO CONTINUED FLOOD THREAT THIS
AFTERNOON...ACROSS THE SOUTHERN THIRD OF WC TX. NEXT IMMEDIATE AREA
OF CONCERN IN THE HEARTLAND. WITH SATURATED SOILS...IT WILL NOT TAKE
MUCH ADDITIONAL RAIN OVER THE WATCH AREA.

ZONE FORECAST SENT EARLIER TO UPDATE FIRST PERIOD POPS TO LIKELY/
CATEGORICAL ACROSS THE SOUTH. WILL SEND ANOTHER ZFP UPDATE WITH
WATCH HEADLINES.

14

Hazardous weather outlook, Oct 25, 5:30 AM CDT, 6 hours 25 minutes before

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-251615-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
530 AM CDT FRI OCT 25 2002

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...
AREAS ALONG AND WEST OF A LINE FROM ROBERT LEE...TO EDEN AND
JUNCTION...CAN EXPECT SCATTERED THUNDERSTORM ACTIVITY MAINLY THIS
MORNING. MOST OF THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE.
HOWEVER A FEW OF THESE STORMS MAY PRODUCE SMALL HAIL...OF WHICH ONE
OR TWO STORMS MAY CONTAIN HAIL TO NEAR DIME SIZE.

.SPOTTER CALL TO ACTION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED.

.DAYS TWO THROUGH SEVEN...
WITH PERIODS OF SCATTERED THUNDERSTORMS...A FEW MAY CONTAIN HEAVY
RAIN AND SMALL HAIL THROUGH TUESDAY.

24

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 25, 9:05 AM CDT	Flash Flood Warning	SJT	Crockett, Menard, Schleicher, Sutton	3 hr
Oct 25, 11:59 AM CDT	Flash Flood Warning	SJT	Menard	3 hr

Nearby

Flash Flood Warnings in Texas, 2002 Every 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.