Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 62, NWS San Angelo, TX

June 15, 2003Mason County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 15, 2003, 6:40 AM CDT for Mason 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
Jun 15, 2003, 6:40 AM CDT (11:40 UTC)
Expired
Jun 15, 2003, 9:30 AM CDT
In force
3 hr
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Mason 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 00:00Z, 11.7 hours before the alert went out and 218 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 2003-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3317 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 00:00Z on 2003-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -42 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
3317 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
985 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-42 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.3
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 151142
FFWSJT
TXC319-151430-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
640 AM CDT SUN JUN 15 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

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

* UNTIL 930 AM CDT

* AT 630 AM CDT...FLOODING WAS CONTINUING ACROSS SOUTHERN MASON      
  COUNTY...PARTICULARLY ALONG BEAVER CREEK...THE JAMES RIVER...AND   
  THEIR TRIBUTARIES.

* RAINFALL TOTALING 4 TO 7 INCHES FELL ACROSS NORTHERN GILLESPIE AND 
  SOUTHERN MASON COUNTY BETWEEN 1 AM AND 6 AM. THIS RAIN WILL CAUSE  
  A SUDDEN RISE ON BEAVER CREEK AND ITS TRIBUTARIES AS THEY FLOW     
  NORTHWARD ACROSS SOUTHERN MASON COUNTY. RAINFALL OF 2 TO 4 INCHES  
  ALSO FELL ACROSS PARTS OF THE JAMES RIVER AND ITS TRIBUTARIES IN   
  SOUTH CENTRAL MASON COUNTY.

LOW WATER CROSSINGS AND OTHER LOW LYING AREAS NEAR BEAVER CREEK 
...THE JAMES RIVER...OR THEIR TRIBUTARIES WILL LIKELY BECOME FLOODED 
AND IMPASSABLE.

TURN AROUND DONT DROWN DO NOT DRIVE INTO AREAS WHERE WATER COVERS 
THE ROAD. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW SAFE PASSAGE. 
REMEMBER...MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3086 9936 3057 9942 3060 9904 3089 9904

$$

07

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 15, 5:11 AM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Jun 15, 5:11 AM CDT, 1 hour 29 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
510 AM CDT SUN JUN 16 2003

.UPDATE...HAVE SENT AN UPDATED FORECAST TO RAISE POPS ACROSS THE
SOUTHEASTERN COUNTIES AS NEW LINE OF SHOWERS AND THUNDERSTORMS
DEVELOPING BETWEEN SAN ANGELO AND BROWNWOOD.

***************330 AM DISCUSSION*********************************
.CURRENT...COLD FRONT IS NEAR I-10 WITH SHOWERS AND THUNDERSTORMS
ALL ALONG THE SOUTHERN TIER OF COUNTIES.

.TODAY...WILL GO WITH THE HIGHEST POPS ACROSS THE SOUTHERN COUNTIES
TODAY WITH FRONT. OTHERWISE TO THE NORTH...STILL UNDER SOME
INFLUENCE OF 50H LOW OVER NORTHEASTERN TEXAS. THIS COULD HELP TO
PRODUCE SOME ISOLATED ACTIVITY THIS AFTERNOON. TEMPERATURES JUST
ABOUT THE SAM AS YESTERDAY.

.TONIGHT-MONDAY...50H LOW CONTINUES TO PUSH TO THE EAST AND EFFECTS
ON THE AREA TO LESSEN THROUGH THE REMAINDER OF THE PERIOD. WILL
CONTINUE TO TREND POPS DOWN TO 10 PERCENT OR BELOW AND GRADUALLY
TAKE MENTION OUT OF THE FORECAST.

.TUESDAY-SATURDAY...RIDGE WILL BUILD INTO THE AREA...MAINLY TO THE
WEST AND KEEP THE AREA IN NORTH TO NORTHWEST FLOW THROUGH THE
PERIOD. ALTHOUGH THIS WOULD NORMALLY BE FAVORABLE REGIME FOR
PRECIPITATION...THERE IS NOTHING THAT I CAN HANG MY HAT ON AT THIS
TIME TO MENTION IN THE FORECAST. WILL PUT VERY LOW POPS IN THE GRIDS
AND WAIT FOR LATER MODEL RUNS TO SEE IF SOMETHING CAN ADDED TO THE
FORECAST. IT IS ABOUT THAT TIME OF YEAR FOR THE RAINS TO STOP AND
GET HOT. ALSO TRENDED TEMPERATURES UP A FEW DEGREES IN THE LATTER
PORTION OF THE EXTENDED AS SHOULD HAVE ENOUGH TIME BY THEN TO DRY
OUT THE GROUND TO GET SOME HEATING GOING. ALTHOUGH IT LOOKS TO BE
GETTING WARMER...STILL NOT AS WARM AS IT COULD BE THIS TIME OF YEAR.

ABI 085/064/086/066 4222
SJT 086/064/086/065 4222
JCT 086/063/086/068 5332

.SJT...NONE.

27/BRAZZELL
Hazardous weather outlook, Jun 15, 5:28 AM CDT, 1 hour 12 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-161030-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
528 AM CDT SUN JUN 15 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...

SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE HEARTLAND AND
NORTHWEST HILL COUNTRY THIS MORNING. ALTHOUGH SEVERE WEATHER IS NO
LONGER EXPECTED...ISOLATED HAIL TO THE ONE HALF INCH DIAMETER IS
POSSIBLE. THE MAIN THREAT THIS MORNING WILL BE VERY HEAVY RAINS AND
THE CONTINUED POTENTIAL OF FLASH FLOODING OVER THE EASTERN PORTION
OF THE EDWARDS PLATEAU...NORTHWEST HILL COUNTRY AND THE HEARTLAND.

.DAYS TWO THROUGH SEVEN...

NORTHWEST FLOW WILL CONTINUE ACROSS THE AREA THROUGH MUCH OF THE
WEEK...AND ISOLATED THUNDERSTORMS ARE POSSIBLE EACH DAY...HOWEVER
THE CHANCES ARE REALLY LOW AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

27/BRAZZELL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 10:52 PM CDTSevere Thunderstorm WarningSJTCrockett, Schleicher38 min
Jun 14, 11:38 PM CDTSevere Thunderstorm WarningSJTConcho52 min
Jun 14, 11:51 PM CDTSevere Thunderstorm WarningSJTMason54 min
Jun 15, 12:00 AM CDTSevere Thunderstorm WarningSJTTom Green60 min
Jun 15, 12:36 AM CDTSevere Thunderstorm WarningSJTMenard54 min
Jun 15, 1:18 AM CDTSevere Thunderstorm WarningSJTSutton57 min
Jun 15, 1:29 AM CDTSevere Thunderstorm WarningSJTKimble, Menard61 min
Jun 15, 1:39 AM CDTFlash Flood WarningSJTSutton3 hr
Jun 15, 2:05 AM CDTFlash Flood WarningSJTKimble4 hr
Jun 15, 2:16 AM CDTSevere Thunderstorm WarningSJTSutton59 min
Jun 15, 2:28 AM CDTSevere Thunderstorm WarningSJTKimble, Mason32 min
Jun 15, 2:41 AM CDTFlash Flood WarningSJTMason4 hr
Jun 15, 2:46 AM CDTSevere Thunderstorm WarningSJTCrockett59 min
Jun 15, 3:03 AM CDTSevere Thunderstorm WarningSJTSchleicher57 min
Jun 15, 3:15 AM CDTSevere Thunderstorm WarningSJTSutton60 min
Jun 15, 3:40 AM CDTFlash Flood WarningSJTSchleicher3 hr
Jun 15, 4:00 AM CDTTornado WarningSJTSutton30 min
Jun 15, 4:27 AM CDTFlash Flood WarningSJTSutton3 hr
Jun 15, 4:33 AM CDTSevere Thunderstorm WarningSJTKimble57 min
Jun 15, 5:55 AM CDTFlash Flood WarningSJTKimble3 hr

Nearby

Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003

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.