Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 5, NWS San Angelo, TX

June 1, 2001McCulloch County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 1, 2001, 2:58 PM CDT for McCulloch 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
Jun 1, 2001, 2:58 PM CDT (19:58 UTC)
Expired
Jun 1, 2001, 5:30 PM CDT
In force
3 hr
Issued by
NWS San Angelo, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County McCulloch County, TX

The radar

The San Angelo radar (KSJT), 106 km from the middle of the area, began a volume at 20:00 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

Fort Worth, TX (KFWD), launched 12:00Z, 8.0 hours before the alert went out and 266 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, Fort Worth, TX at 12:00Z on 2001-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Fort Worth, TX at 12:00Z on 2001-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1334 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
132 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 011959
FFWSJT
TXC307-012230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
258 PM CDT FRI JUN 1 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MCCULLOCH COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 530 PM CDT

* AT 250 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY       
  HEAVY RAIN FROM 6 MILES WEST OF MERCURY TO 14 MILES WEST OF        
  BRADY...MOVING SOUTHEAST AT 25 MPH.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE NEAR...   
   BRADY...PLACID AT 305 PM CDT
   ROCHELLE AT 315 PM CDT
   VOCA AT 335 PM CDT

* AT 255 PM...RAINFALL TOTALING 2 TO 3 INCHES WAS ESTIMATED BY RADAR 
  TO HAVE FALLEN OVER NORTHWEST PORTIONS OF MCCULLOCH COUNTY. THIS   
  HEAVY RAIN WILL OCCUR OVER THE REMAINDER OF MCCULLOCH COUNTY       
  BETWEEN 3 PM AND 4 PM...AS THUNDERSTORMS MOVE SOUTHEAST ACROSS THE 
  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 3144 9957 3096 9958 3095 9913 3140 9910

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 Jun 1, 2:44 PM CDT, 14 minutes earlier.

Area forecast discussion, Jun 1, 2:44 PM CDT, 14 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
244 PM CDT FRI JUN 1 2001

ACTIVE AFTERNOON AT HAND AS THUNDERSTORMS ARE MAKING THERE WAY EASTWARD
TOWARD THE HEARTLAND. MID/UPPER LEVEL IMPULSE COMBINED WITH A WEAK CAP
TODAY TO PRODUCE THE ACTIVITY.

SHOULD SEE...HOPEFULLY...CHANCES FOR THUNDERSTORM ACTIVITY BECOME
MINIMAL TOMORROW THROUGH SUNDAY AS AN UPPER LEVEL RIDGE OVER THE
SOUTHWESTERN U.S. MOVE EASTWARD JUST ENOUGH TO WARM THE MID AND UPPER
LEVEL TEMPERATURES. FOR TONIGHT HOWEVER...WILL NEED TO INCLUDE 20 POPS
ACROSS THE BIG COUNTRY...HEARTLAND AND NORTHWEST HILL COUNTRY WHERE
TIMING OF THE ONGOING PRECIP WILL BE THE OBVIOUS KEY. IN ADDITION...THE
MID LEVEL IMPULSE MAY STILL BE SITUATED NEAR THE HEARTLAND AND NORTHWEST
HILL COUNTRY UNTIL MIDNIGHT.

ELSEWHERE...CONVERGENCE ZONE AND A WELL STACKED THETA-E RIDGE WILL EXIST
OVER FAR WESTERN AREAS LATE THIS AFTERNOON...HOWEVER...SURFACE AND
DEWPOINT TEMPERATURES WILL BE COOLER THAN WHAT THE MODELS SUGGEST AS
RAIN COOLED AIR COVERS MUCH OF THE AREA AT THE CURRENT TIME.
THEREFORE...REDEVELOPMENT OVER WESTERN PORTIONS OF THE AREA IS NOT
ANTICIPATED TONIGHT.

FOR TEMPERATURES...WILL SEE A WARMUP THOUGH SUNDAY AS THE THERMAL AXIS
MOVES EASTWARD. WILL TREND TOWARD GUIDANCE WITH PERHAPS AN ELEVATED
TWEEK ON MAXES BUT NOT UNTIL SUNDAY AS THE SOAKED GROUND MAY KEEP TEMPS
DOWN A CAT ON SATURDAY WITHOUT A WESTERLY SURFACE FLOW.

IN THE EXTENDED...A POSITIVELY TILTED TROUGH WILL BECOME POSITIONED OVER
EAST TEXAS ALLOWING FOR A DUE NORTHERLY FLOW ALOFT. THIS WILL ACTUALLY
PUSH A SIGNIFICANT COOL FRONT DOWN ON TUESDAY. MOISTURE RETURN LOOKS
LIKELY SO WILL KEEP THE SLIGHT RISK OF THUNDERSTORMS GOING FOR MONDAY
AND TUESDAY. COOLER AIR TO FOLLOW WITH MINS POTENTIALLY FALLING INTO THE
UPPER 50S DURING THE MIDDLE OF NEXT WEEK FOR LOWS. NOT TOO SHABBY FOR
EARLY JUNE.

WILL BE ISSUING A ZONE UPDATE SHORTLY AS A SVR TSTM WATCH IS ON THE WAY.

ABI 071/093/072/097  1000
SJT 071/095/072/098  1000
JCT 070/095/071/096  1000

.SJT...NONE...

21

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 12:40 PM CDTSevere Thunderstorm WarningSJTTom Green50 min
Jun 1, 1:07 PM CDTSevere Thunderstorm WarningSJTConcho, McCulloch53 min
Jun 1, 1:18 PM CDTSevere Thunderstorm WarningSJTTom Green57 min
Jun 1, 1:51 PM CDTSevere Thunderstorm WarningSJTConcho69 min
Jun 1, 2:17 PM CDTSevere Thunderstorm WarningSJTMenard58 min
Jun 1, 2:36 PM CDTSevere Thunderstorm WarningSJTColeman, McCulloch54 min

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.