Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 59, NWS San Angelo, TX

July 7, 2002Fisher County, Texas

NWS San Angelo, TX issued this flash flood warning at Jul 7, 2002, 2:57 PM CDT for Fisher County, Texas. It was in force for 108 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 7, 2002, 2:57 PM CDT (19:57 UTC)
Expired: Jul 7, 2002, 4:45 PM CDT
In force: 108 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Fisher 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

Midland Regional, TX (KMAF), launched 12:00Z, 8.0 hours before the alert went out and 189 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: 228 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 768 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: -29 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 072003
FFWSJT
TXC151-072145-

BULLETIN - EAS ACTIVATION REQUESTED...COR
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
248 PM CDT SUN JUL 7 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FISHER COUNTY IN NORTHWEST TEXAS

* UNTIL 445 PM CDT

* AT 248 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A LARGE 
AREA OF VERY HEAVY RAIN...MOVING ACROSS MUCH OF FISHER COUNTY...WITH 
THE HEAVIEST RAIN SOUTHEAST OF ROBY...THESE STORMS ARE MOVING 
NORTHWEST AND WILL PRODUCE HEAVY RAINS ACROSS MOST OF FISHER COUNTY. 

* RAINFALL TOTALING ONE HALF TO ONE INCH HAS FALLEN IN THE WARNED 
AREA...WITH ADDITIONAL RAINFALL UP TO 2 INCHES EXPECTED THROUGH 545 
PM CDT

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 3264 10034 3251 10018 3292 10028 3256 10068

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 Jul 7, 2:13 AM CDT, 12 hours 44 minutes earlier.

Area forecast discussion, Jul 7, 2:13 AM CDT, 12 hours 44 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
213 AM CDT SUN JUL 7 2002

WATER VAPOR LOOP INDICATED UPPER TROUGH/SHEAR ZONE CONTINUING
OVER WEST CENTRAL TEXAS...WITH AN UPPER LEVEL LOW OVER EASTERN
NEW MEXICO. THE ATMOSPHERE REMAINS MOIST AND TROPICAL WITH DEW
POINTS IN THE LOWER 70S. 00Z SOUNDING AT MIDLAND AND DEL RIO WERE
RUNNING ABOUT 150 PERCENT OF NORMAL. RADAR AT 7Z INDICATED THE CIRCULATION
SOUTHWEST CROCKETT COUNTY...AS A MCS MOVED SOUTHEAST INTO MEXICO AND TOWARD
DEL RIO.

SCATTERED THUNDERSTORMS WERE REDEVELOPING NEAR SONORA AND OZONA. MIDNIGHT
HAS THE TIME FOR REDEVELOPMENT THIS WEEK...AND THIS COULD VERY WELL
DEVELOP OVER THE CONCHO VALLEY THIS MORNING. MAY SEE ANOTHER MCS DEVELOP
IN THE PERMIAN BASIN THIS AFTERNOON...CLOSER TO UPPER LOW IN NEW MEXICO...
AND MOVE INTO WESTERN SECTONS OF THE BIG COUNTRY/CONCHO VALLEY AGAIN.

MODEL INDICATE LITTLE MOVEMENT WITH UPPER FEATURES TODAY. BOTH AVN AND
ETA MODELS SHIFT THE SHEAR ZONE AND UPPER LOW TO THE SOUTHWEST ON MONDAY.
MODELS CONTINUE TO HAVE PROBLEMS DOING THIS HOWEVER...AND WILL
KEEP HIGHER POPS MONDAY (30 TO 40 PERCENT RANGE). PERHAPS SHEAR ZONE
WILL ACTUALLY MOVE WEST BY TUESDAY  WILL KEEP LOWER POPS IN PREVIOUS
FORECAST PACKAGE FOR TUESDAY AND BEYOND.

WITH THE EXTREME AMOUNTS OF RAIN THAT FELL THE LAST 24 HOURS...WILL PUT
IN FLASH FLOOD WATCH. EVEN IF THE MCS DOES NOT DEVELOP THIS MORNING...
AFTERNOON HEAT GENERATED STORMS COULD QUICKLY PRODUCE 3 TO 5 INCHES OF
RAIN. AFTERNOON/EVENING STORMS PROBABLY THE CASE FOR THE HARD HIT ABILENE
AND BROWNWOOD AREAS.

CCF PRELIMS...

ABI 086/070 090/071 091 6333
SJT 090/070 093/070 091 6533
JCT 090/070 093/070 090 4332

.SJT...FLASH FLOOD WATCH TODAY ALL COUNTIES.

04

In the hours before

Special weather statement, Jul 7, 2:05 PM CDT, 52 minutes before

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-072300-

WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
205 PM CDT SUN JUL 7 2002

...FLASH FLOODING REMAINS POSSIBLE ACROSS MUCH OF WEST CENTRAL TEXAS
THIS AFTERNOON AND TONIGHT...

A MOIST AND UNSTABLE AIRMASS CONTINUES ACROSS WEST CENTRAL TEXAS.
SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS MUCH OF THE
AREA THIS AFTERNOON AND EVENING. ALTHOUGH THESE STORMS ARE NOT
EXPECTED TO REACH SEVERE LEVELS...SOME OF THEM WILL PRODUCE VERY
HEAVY RAIN...WHICH MAY CAUSE FLASH FLOODING.

SPOTTER ACTIVATION MAY BE NEEDED.

ADDITIONAL INFORMATION PLEASE SEE STATEMENTS AND OUTLOOKS FROM
NATIONAL WEATHER SERVICE OFFICES ACROSS TEXAS...OKLAHOMA...AND NEW
MEXICO.

09

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 10:14 PM CDT	Flash Flood Warning	SJT	Tom Green	3 hr
Jul 7, 1:28 AM CDT	Flash Flood Warning	SJT	Sutton	6 hr
Jul 7, 2:23 AM CDT	Flash Flood Warning	SJT	Crockett	4 hr
Jul 7, 6:23 AM CDT	Flash Flood Warning	SJT	Kimble	6 hr
Jul 7, 2:48 PM CDT	Flash Flood Warning	SJT	Fisher	117 min
Jul 7, 3:03 PM CDT	Flash Flood Warning	SJT	Fisher	102 min
Jul 7, 5:02 PM CDT	Flash Flood Warning	SJT	Fisher	4 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.