Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 79, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Sep 18, 2003, 7:26 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 as issued.
The facts
- Issued
- Sep 18, 2003, 7:26 PM CDT (00:26 UTC)
- Expired
- Sep 18, 2003, 10:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County McCulloch 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
Fort Worth, TX (KFWD), launched 00:00Z, 0.4 hours before the alert went out and 256 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.
- Mixed-layer CAPE
- 979 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 675 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -42 m²/s²
- 0-3 km storm-relative helicity
- -36 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KSJT 190027
FFWSJT
TXC307-190330-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
726 PM CDT THU SEP 18 2003
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
MCCULLOCH COUNTY IN WEST CENTRAL TEXAS
* UNTIL 1030 PM CDT
* AT 720 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
RAIN 3 MILES SOUTHWEST OF MERCURY...OR ABOUT 17 MILES NORTHWEST OF
RICHLAND SPRINGS...MOVING SOUTHWEST AT 20 MPH.
* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
ROCHELLE AT 745 PM CDT
LOHN AT 755 PM CDT
PEAR VALLEY AT 805 PM CDT
BRADY...VOCA AT 810 PM CDT
* RAINFALL TOTALING TWO TO FOUR INCHES HAS FALLEN ACROSS NORTHERN
MCCULLOCH COUNTRY...WITH ADDITIONAL RAINFALL UP TO TWO INCHES
EXPECTED THROUGH 830 PM CDT.
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 3141 9911 3141 9925 3140 9954 3097 9953
3098 9912
$$
17What 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 Sep 18, 2:49 PM CDT, 4 hours 37 minutes earlier.
Area forecast discussion, Sep 18, 2:49 PM CDT, 4 hours 37 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 249 PM CDT THU SEP 18 2003 WHILE MOST EYES ARE FOCUSED TO THE EAST ON HURRICANE ISABEL... A COLD FRONT WAS MOVING INTO WC TX THIS AFTERNOON. AT 1930Z...AREA WSR-88D RADARS PLACED THE FRONT ALONG A BAIRD...BLACKWELL AND NORTHERN STERLING COUNTY LINE. MOVEMENT WAS SOUTHEAST AROUND 25 MPH. SCATTERED THUNDERSTORMS HAD DEVELOPED SOUTHEAST OF A STERLING CITY TO ROBERT LEE TO ALBANY LINE...ALONG AND AHEAD OF THE ADVANCING COLD FRONT. LATEST JAYTON WIND PROFILE INDICATES FRONTAL SURFACE REMAINS RELATIVELY SHALLOW...3 KFT OR LESS. 18Z MESOETA PROGS 850 MB FRONTAL SURFACE TO EXTEND FROM IRION COUNTY...TO THE SE BIG COUNTRY BY 09Z FRIDAY. UPPER SUPPORT AND SHEAR VERY WEAK. WITH 850MB DEWPOINTS NEAR 15C POOLING ALONG THE 850MB FRONT...WILL MAINTAIN CHANCE OF RAIN INTO THE EVENING PERIOD FOR THE NORTHWEST HALF OF THE FORECAST AREA...AND INTO EARLY TOMORROW FOR THE INTERSTATE 10 CORRIDOR. ANOTHER COLD FRON PROGGED TO MOVE INTO WC TX EARLY ON MONDAY. GFS/12Z AVN/ CONSIDERABLY SLOWER THAT THE GFS/00Z MRF/ WITH THE FRONT...WITH LESS CLOUD COVER AND LOWER RAIN CHANCES. GIVEN WEAKER FRONTAL PUSH AND RELATIVELY DRIER AND STABLE PREFRONTAL BOUNDARY LAYER...LOWER RAIN CHANCES APPEAR IN ORDER FOR LATE SUNDAY INTO MONDAY. NW FLOW ALOFT TO WEAKEN BY NEXT TUESDAY...AS UPPER RIDGE OVER MEXICO BUILDS INTO THE DESERT SW STATES W TX. RAIN CHANCES TO REMAIN BELOW MENTIONABLE LEVELS MIDWEEK...WITH NEAR NORMAL TEMPS. UPPER LEVEL LONGWAVE TROF TAKING SHAPE OVER THE NORTHERN ROCKIES TO RESULT IN LEE-SIDE TROF DEVELOPMENT OVER NM LATE IN THE WEEK...WITH DEVELOPING THETA-E RIDGE AND A CHANCE OF RAIN FOR WC TX TOWARD THE END OF NEXT WEEK. PRELIMS... ABI 054/075/056/083 1-00 SJT 058/076/058/084 2-00 JCT 060/078/060/082 3100 .SJT...NONE. 14
Hazardous weather outlook, Sep 18, 2:05 PM CDT, 5 hours 21 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-191000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 205 PM CDT THU SEP 18 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS. .DAY ONE... A STRONG COLD FRONT ALONG INTERSTATE 20 IN THE BIG COUNTRY AT 2 PM WILL PUSH THROUGH THE REST OF WEST CENTRAL TEXAS THIS AFTERNOON AND EVENING. WHILE SEVERE THUNDERSTORMS ARE NOT EXPECTED...LOCALLY HEAVY RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE DUE TO THE SLOW MOVEMENT OF THE STORMS. AREAS EAST OF A BALLINGER TO JUNCTION HAVE THE BEST CHANCE OF SEEING THE HEAVIER RAINFALL. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
In the hours before
Special weather statement, Sep 18, 3:07 PM CDT, 4 hours 19 minutes before
TXZ071>073-076>078-139-140-154-155-168>170-182200- SPECIAL WEATHER STATEMENT...CORRECTED TO ADD DOLLAR SIGNS NATIONAL WEATHER SERVICE SAN ANGELO TX 307 PM CDT THU SEP 18 2003 AT 307 PM CDT...A TRAINED SKYWARN SPOTTER NEAR PLACID IN NORTHERN MCCULLOCH COUNTY REPORTED ROTATION IN A STORM. BEWARE THAT THIS TYPE OF ROTATION NORMALLY DOES NOT TOUCH THE GROUND AND BECOME TORNADIC. HOWEVER...KEEP YOUR EYE TO THE SKY AND BE PREPARED TO TAKE SHELTER IN THE EVENT IT TOUCHES DOWN AND BECOMES TORNADIC. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES.
Special weather statement, Sep 18, 3:19 PM CDT, 4 hours 7 minutes before
TXZ071>073-076>078-139-140-154-155-168>170-182100- SPECIAL WEATHER STATEMENT. NATIONAL WEATHER SERVICE SAN ANGELO TX 319 PM CDT THU SEP 18 2003 AT 307 PM CDT...A TRAINED SKYWARN SPOTTER NEAR PLACID IN NORTHERN MCCULLOCH COUNTY REPORTED ROTATION IN A STORM. THIS ROTATION SELDOM TOUCHES THE GROUND...AND IS TOO WEAK TO JUSTIFY ACTIVATING THE WHOLE WARNING AND RESPONSE SYSTEM. HOWEVER...THEY CAN CAUSE DAMAGE AND EVEN INJURY ON RARE OCCASIONS WHEN THEY REACH THE GROUND. KEEP YOUR EYE TO THE SKY AND BE PREPARED TO TAKE SHELTER. MEANWHILE...A COLD WILL CONTINUE TO PUSH THROUGH WEST CENTRAL TEXAS THIS AFTERNOON AND EVENING PRODUCING SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE CONCHO VALLEY...THE HEARTLAND...AND THE NORTHWEST HILL COUNTRY. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES.
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.