Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 17, NWS San Angelo, TX

November 15, 2001Kimble County, Texas

NWS San Angelo, TX issued this flash flood warning at Nov 15, 2001, 8:17 AM CST for Kimble County, Texas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Nov 15, 2001, 8:17 AM CST (14:17 UTC)
Expired
Nov 15, 2001, 12:15 PM CST
In force
4 hr
Issued by
NWS San Angelo, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Kimble County, TX

The radar

The San Angelo radar (KSJT), 113 km from the middle of the area, began a volume at 14:17 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 12:00Z, 2.3 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 12:00Z on 2001-11-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 348 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 2001-11-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
348 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
594 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KSJT 151426
FFWSJT
TXC267-151815-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
817 AM CST THU NOV 15 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING CONTINUES FOR...
  KIMBLE COUNTY IN SOUTH CENTRAL TEXAS

* UNTIL 1215 PM CST

* AT 815 AM CST...WEATHER OBSERVERS REPORTED HEAVY RAIN IN  
SOUTHWESTERN KIMBLE COUNTY...WITH SEVERAL AREA ROADS COVERED WITH 
WATER AND MANY STREAMS AT BANKFULL.

* RAINFALL TOTALING 3 TO 4 INCHES HAS FALLEN THROUGHOUT KIMBLE 
COUNTY...WITH ADDITIONAL RAINFALL UP TO 1 INCH EXPECTED THROUGH 
1215 PM CST

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 3065 9991 3035 10004 3036 9943 3067 9975

15

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 Nov 15, 3:11 AM CST, 5 hours 6 minutes earlier.

Area forecast discussion, Nov 15, 3:11 AM CST, 5 hours 6 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
311 AM CST THU NOV 15 2001

ALTHOUGH BENEFICIAL RAIN IS FALLING ACROSS WEST CENTRAL TX...ADDITIONAL
HEAVY RAIN IS EXPECTED WHICH COULD LEAD TO RUNOFF/FLOODING PROBLEMS.

CURRENT SITUATION...AREA RADARS INDICATE LARGE AREA OF SHOWERS AND
THUNDERSTORMS WITH VERY HEAVY RAIN ADVANCING ACROSS OUR NORTHERN AND
EASTERN COUNTIES. RAINFALL TOTALS ACROSS OUR CWFA SO FAR RANGE FROM 1-2
INCHES EAST...TO 2-5 INCHES OVER WESTERN THIRD. ANOTHER AREA OF
SHOWERS/STORMS OVER SW AND WEST TX ADVANCING NNE...INTO OUR WESTERN
COUNTIES. UPPER LOW OVER FAR NORTHERN MEXICO JUST SOUTHWEST OF KELP.

MODEL RUNS CONSISTENT WITH TRACK OF UPPER LOW...DRIFTING IT EAST ACROSS
RIO GRANDE TO JUST EAST OF KELP TODAY...THEN MEANDERING ALONG TX/NM
BORDER EAST OF KELP TONIGHT THROUGH FRIDAY. SYSTEM TO WEAKEN AND FILL
AS IT LIFTS OUT SLOWLY NNE INTO NM BY SATURDAY. GOOD DYNAMICS WITH THIS
SYSTEM TO CONTINUE ACROSS OUR REGION TODAY AND TONIGHT WITH UPPER
DIVERGENCE AND QG FORCING. SOUTHEAST LOW LEVEL MOISTURE FEED FROM GULF
TO CONTINUE...WITH DEEP MOISTURE AXIS SITUATED ACROSS A CONSIDERABLE
PORTION OF OUR CWFA. EXPECT ADDITIONAL ROUNDS OF SHOWERS/STORMS TO
PIVOT ACROSS OUR CWFA TODAY AND TONIGHT...AND POSSIBLY INTO FRIDAY.
EXPECT ACTIVITY TO BECOME MORE SCATTERED LATER FRI INTO SATURDAY.
GIVEN THE SUSTAINED FAVORABLE FACTORS AND THE POTENTIAL FOR EXCESSIVE
RAINFALL...PLANNING TO ISSUE A FLOOD WATCH FOR ALL OF OUR CWFA TODAY
AND TONIGHT.

FOR TEMPERATURES...FAVOR A LOW DIURNAL RANGE WITH SOLID CLOUDCOVER AND
EPISODES OF RAIN. TEMPS DROPPED INTO 50S AT SJT AND ABI WITH ONSET OF
RAIN LATE WEDNESDAY AFTERNOON/EVENING. WILL LEAN TOWARD COOL TEMPS NEXT
2-3 DAYS.

IN THE EXTENDED...UPPPER LOW TO OPEN UP AND TRACK EAST ACROSS TX AS A
SHORTWAVE ON SUNDAY. COLD FRONT ASSOCIATED WITH DIGGING NORTHERN STREAM
UPPER TROUGH PROGGED TO MOVE SOUTH ACROSS OUR REGION SUNDAY NIGHT...
WITH SURFACE HIGH PRESSURE BUILDING SOUTH BEHIND IT ON MONDAY. WITH
THIS SCENARIO WILL RETAIN THE RAIN CHANCES SUNDAY BUT REMOVE IT MON.

PRELIMINARY CCF...
ABI 063/057/063/054 +754
SJT 061/056/061/055 +754
JCT 064/059/064/056 +754

.SJT...FLOOD WATCH TODAY AND TONIGHT FOR ALL OF WEST CENTRAL TEXAS.

19

In the hours before

Special weather statement, Nov 15, 5:41 AM CST, 2 hours 36 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-151530-

WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
541 AM CST THU NOV 15 2001

...HEAVY RAINFALL POSSIBLE TODAY AND TONIGHT...

A FLOOD WATCH IS IN EFFECT TODAY AND TONIGHT FOR ALL OF WEST CENTRAL
TEXAS. A NEARLY STATIONARY UPPER LEVEL LOW PRESSURE SYSTEM NEAR EL
PASO HAS ALREADY DEPOSITED TWO TO FIVE INCHES OF RAINFALL OVER THE
EDWARDS PLATEAU AND CONCHO VALLEY...AND BETWEEN ONE AND THREE INCHES
ELSEWHERE. WITH THIS POTENT STORM SYSTEM MAINTAINING IS STRENGTH AND
MOVING VERY LITTLE TODAY AND TONIGHT...ANOTHER TWO TO FOUR INCHES OF
RAINFALL IS POSSIBLE BY FRIDAY MORNING. GIVEN THE SATURATED SOIL
CONDITIONS...ANY ADDITIONAL RAINFALL WILL LIKELY RESULT IN FLOODING.

RAIN COOLED AIR AND EXTENSIVE CLOUD COVER WILL INHIBIT SEVERE
THUNDERSTORM DEVELOPMENT.

SPOTTER ACTIVATION IS NOT ANTICIPATED.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 5:38 AM CSTFlash Flood WarningSJTKimble3 hr

Nearby

Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001

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.