Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 5, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Apr 3, 1999, 6:07 AM CST for San Saba 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 counties it named.
The facts
- Issued
- Apr 3, 1999, 6:07 AM CST (12:07 UTC)
- Expired
- Apr 3, 1999, 8:40 AM CST
- In force
- 3 hr
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
County San Saba County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 0.1 hours before the alert went out and 236 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
- 841 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 918 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
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 Apr 3, 2:00 AM CST, 4 hours 7 minutes earlier.
Area forecast discussion, Apr 3, 2:00 AM CST, 4 hours 7 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 200 AM CST SAT APR 3 1999 CURRENTLY MONITORING A LINE OF CONVECTION CROSSING THE FORECAST AREA. THE LINE HAS SLOWED IN FORWARD SPEED...AS THE PUSH HAS BECOME PARALLEL TO THE LINE. EVEN WITH THE SLOWER MOVEMENT...THINK THAT THE PRECIP WILL BE OUT OF THE AREA BY FORECAST TIME. LATEST ANALYSES SHOWS TROF OVER THE INTERMOUNTAIN WEST...WITH THIS FEATURE PULLING OUT INTO THE PLAINS. IN DOING SO...THIS WILL SHUT DOWN THE PRECIP FOR WEST CENTRAL TEXAS. THE ASSOCIATED PACIFIC FRONT WILL PUSH SLOWLY EAST OVER THE COURSE OF THE DAY TODAY. DRIER WEST AND NORTHWEST WINDS...EVIDENT BY THE UPPER TEEN AND LOWER 20 DEWPOINTS IN THE WAKE OF THE FRONT...WILL RETURN. MOSTLY SUNNY SKIES ARE EXPECTED BY THIS AFTERNOON. TEMPERATURES WILL RUN A LITTLE COOLER THAN FRIDAY... MAINLY IN THE MID AND UPPER 70S. THE DRIER AIR AND CLEAR SKIES WILL ALLOW FOR TEMPERATURES SUNDAY MORNING TO COOL INTO THE LOWER AND MID 40S AS RADIATIONAL COOLING WILL KICK INTO HIGH GEAR. NEXT UP...DIGGING SHORT WAVE ON THE WESTERN SIDE OF THE UPPER LOW WILL START MAKING ITS WAY AROUND THE BEND...BEFORE KICKING OUT INTO THE PLAINS. THIS WILL ALLOW FOR A FAIRLY QUICK RETURN FLOW PATTERN TO SET UP. CLOUDS WILL RETURN OVER THE COURSE OF THE AFTERNOON SUNDAY...AND SO WILL WARMER TEMPERATURES. BY THE TIME THE SHORTWAVE KICKS...AROUND MONDAY...IT WILL IMPACT THE FORECAST AREA BEFORE THE MOISTURE RETURNS...THUS SLIGHT CHANCE POPS LOOKS REASONABLE...IF NOT A LITTLE OPTIMISTIC. BUT CLOUDS SHOULD BRIEFLY RETURN. NO RAIN EXPECTED FOR THE REMAINDER OF THE WEEK. PRELIMS... ABI BE 073/042/077/060 0002 SJT BE 075/041/080/060 0002 JCT BE 076/042/077/059 2002 20
In the hours before
Special weather statement, Apr 3, 1:11 AM CST, 4 hours 56 minutes before
TXZ049-053-054-064>066-071-072-076>078-098-099-113-114-127-128- 030910- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 111 AM CST SAT APR 3 1999 TORNADO WATCH NUMBER 105 WHICH WAS IN EFFECT FOR THE WESTERN PORTION OF THE CONCHO VALLEY...THE EDWARDS PLATEAU...AND THE WESTERN BIG COUNTRY HAS BEEN CANCELLED. SEVERE THUNDERSTORM WATCH NUMBER 106 IS IN EFFECT FOR PORTIONS OF THE EASTERN BIG COUNTRY UNTIL 600 AM CST. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS. 21
Special weather statement, Apr 3, 5:55 AM CST, 12 minutes before
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</html>The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 9:55 PM CST | Severe Thunderstorm Warning | SJT | Crockett | 65 min |
| Apr 2, 11:32 PM CST | Severe Thunderstorm Warning | SJT | Fisher | 48 min |
| Apr 3, 3:27 AM CST | Severe Thunderstorm Warning | SJT | Schleicher | 63 min |
| Apr 3, 4:11 AM CST | Severe Thunderstorm Warning | SJT | Menard | 64 min |
| Apr 3, 4:50 AM CST | Tornado Warning | SJT | Menard | 55 min |
| Apr 3, 5:13 AM CST | Tornado Warning | SJT | Concho | 62 min |
Nearby
Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999
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.