Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 16, NWS San Angelo, TX

November 15, 2001Kimble County, Texas

NWS San Angelo, TX issued this flash flood warning at Nov 15, 2001, 5:38 AM CST for Kimble 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Nov 15, 2001, 5:38 AM CST (11:38 UTC)
Expired
Nov 15, 2001, 8:30 AM CST
In force
3 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), 117 km from the middle of the area, began a volume at 11:42 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, 11.6 hours before the alert went out and 155 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 00:00Z on 2001-11-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1971 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2001-11-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 square meters per square second.19395878Sfc1 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
1971 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
705 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
1.6
Supercell composite
6.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KSJT 151143
FFWSJT
TXC267-151430-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 830 AM CST

* AT 535 AM CST...WEATHER SERVICE DOPPLER RADAR INDICATED            
  THUNDERSTORMS WITH HEAVY RAIN OVER KIMBLE COUNTY...MOVING NORTH    
  AT 40 MPH.

* RAINFALL AMOUNTS OF 1.5 TO 3 INCHES HAVE FALLEN THROUGHOUT            
  KIMBLE COUNTY. ADDITIONAL THUNDERSTORMS WITH HEAVY RAIN WILL CONTINUE 
  TO MOVE ACROSS KIMBLE COUNTY THROUGH AT LEAST 730 AM. AN ADDITIONAL 
  1 TO 2 INCHES OF RAIN IS EXPECTED...AND THIS WILL LIKELY CAUSE FLASH  
  FLOODING.

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.

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 3033 10007 3031 9950 3070 9953 3069 10009

19

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, 2 hours 27 minutes earlier.

Area forecast discussion, Nov 15, 3:11 AM CST, 2 hours 27 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

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 8:17 AM CSTFlash Flood WarningSJTKimble4 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.