Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 1, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Jan 5, 1998, 6:44 PM CST for Concho County, McCulloch County, Texas. It was in force for 106 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 5, 1998, 6:44 PM CST (00:44 UTC)
- Expired
- Jan 5, 1998, 8:30 PM CST
- In force
- 106 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
Counties Concho County, TX, McCulloch County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 0.7 hours before the alert went out and 279 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
- 45 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 512 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Jan 5, 2:00 PM CST, 4 hours 44 minutes earlier.
Area forecast discussion, Jan 5, 2:00 PM CST, 4 hours 44 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 200 PM CST MON JAN 5 1998 WEAK SHORTWAVE CURRENTLY MOVING INTO WEST TEXAS WITH RADAR AND SATELLITE TRENDS SHOWING AN INCREASE IN CLOUDS AND LIGHT RAIN SOUTHWEST OF THE COUNTY WARNING AREA. THUS DESPITE TEMPORARILY IMPROVING CONDITIONS...WILL CONTINUE A DREARY FORECAST FOR THE 1ST PERIOD. THE SHORTWAVE WILL ALSO SLOW IN SPEED AS THE UPPER TROUGH CONTINUES TO DIG SOUTH INTO MEXICO. THIS SLOW MOVEMENT IN COMBINATION WITH PRECIPITABLE WATER VALUES ABOVE 150 PERCENT OF NORMAL SHOULD ALLOW FOR A GOOD CHANCE OF RAIN AREA WIDE IN THE 1ST PERIOD. WILL NEED MENTION OF FOG AGAIN WITH LIGHT WINDS IN ADVANCE OF THE COLD FRONT WHICH WILL GRADUALLY PUSH THROUGH THE AREA EARLY TOMORROW MORNING. NGM ACTUALLY INITIALIZED THE SURFACE BEST THIS RUN...BUT SINCE ETA IS TYPICALLY SUPERIOR IN HANDLING FRONTS...WILL BLEND THE NGM FRONTAL FORECAST WITH THE FASTER AND STRONGER ETA/AVIATION. THIS IS BECAUSE I EXPECT BEST PVA TO SHIFT SOUTH WHERE FASTER FLOW WILL OCCUR AT THE BASE OF THE UPPER TROUGH. AS PVA DECREASES OVER EASTERN NEW MEXICO... EXPECT THE SURFACE TROUGH CURRENTLY OVER EASTERN PORTIONS OF COLORADO AND NEW MEXICO TO GIVE WAY EASILY TO THE FRONT SINCE IT IS NOT THAT STRONG TO BEGIN WITH. MODELS SHOW GOOD AGREEMENT THROUGH THE 1ST COUPLE PERIODS WITH THE DEEPENING OF THE UPPER LEVEL SHORTWAVE TROUGH OVER THE SOUTH CENTRAL US AND MEXICO. MODELS ALSO AGREE ON THE TIMING OF THE INITIAL MID LEVEL SHORTWAVE MOVING ACROSS THE FORECAST AREA BY THIS EVENING... GIVING THE BEST CHANCE OF PRECIPITATION LATE THIS AFTERNOON AND EARLY THIS EVENING. THIS FITS WELL WITH THE CURRENT TRENDS. AS THE FRONT AND UPPER TROUGH BOTH BUILD SOUTH...EXPECT FOCUS FOR RAIN TO SHIFT AS WELL SO WILL KEEP WETTEST POPS IN THE JCT AREA IN THE 2ND PERIOD. EXPECT FRONT TO REACH SJT BY 12Z TUESDAY BUT WITH LITTLE TIME TO DRY DEWPOINTS AND EFFECT TEMPS THROUGH 14Z. THUS WILL STAY ABOVE GUIDANCES HERE AND AT JCT WITH MODERATE NORTHWEST WINDS HAVING TROUBLE DRYING OUT SUCH HIGH DEWPOINTS. WILL NOT ARGUE WITH 2ND PERIOD POPS DUE TO UNCERTAINTY OF LOW CLOUDS AND FOG WHICH COULD BE AFFECTED BY HOW MUCH RAIN HAS FALLEN OVERNIGHT. SO FAR PRECIP AMOUNTS ACROSS THE AREA OVER THE PAST FEW DAYS HAS BEEN VERY LIGHT. EXPECT RAINFALL AVERAGES LESS THAN 1/4 INCH TONIGHT SINCE SURFACE FOCUSING MECHANISMS WILL BE HARD TO COME BY. WITH NO LLJ TO SPEAK OF...EXPECT ONLY VERY WEAK AND BRIEF EMBEDDED THUNDERSTORMS TO BE POSSIBLE TONIGHT WITH INSTABILITY BEING THE ONLY HELP. ABI 044/054 52 SJT 049/057 53 JCT 054/058 55 15
In the hours before
Local storm report, Jan 5, 4:54 PM CST, 1 hour 50 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
454 PM CST MON JAN 5 1998
TIME(CST) .....CITY LOCATION..... STATE...EVENT/REMARKS...
....COUNTY LOCATION....
410 PM MELVIN TX 1.50 INCH HAIL
01/05/97 MCCULLOCH
423 PM 4 W BRADY TX 0.88 INCH HAIL
01/05/97 MCCULLOCH
433 PM 3 N BRADY TX 0.75 INCH HAIL
01/05/97 MCCULLOCH
437 PM 3 W BRADY TX 1.75 INCH HAIL
01/05/97 MCCULLOCH
438 PM BRADY TX 2.00 INCH HAIL
01/05/97 MCCULLOCH
447 PM ROCHELLE TX 1.75 INCH HAIL
01/05/97 MCCULLOCH
12
&Local storm report, Jan 5, 4:54 PM CST, 1 hour 50 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
454 PM CST MON JAN 5 1998
TIME(CST) .....CITY LOCATION..... STATE...EVENT/REMARKS...
....COUNTY LOCATION....
410 PM MELVIN TX 1.50 INCH HAIL
01/05/97 MCCULLOCH
423 PM 4 W BRADY TX 0.88 INCH HAIL
01/05/97 MCCULLOCH
433 PM 3 N BRADY TX 0.75 INCH HAIL
01/05/97 MCCULLOCH
437 PM 3 W BRADY TX 1.75 INCH HAIL
01/05/97 MCCULLOCH
438 PM BRADY TX 2.00 INCH HAIL
01/05/97 MCCULLOCH
447 PM ROCHELLE TX 1.75 INCH HAIL
01/05/97 MCCULLOCH
12
&The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 9:15 PM CST | Severe Thunderstorm Warning | SJT | McCulloch | 45 min |
Nearby
Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998
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.