Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 1, NWS San Angelo, TX

February 8, 2001Fisher County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Feb 8, 2001, 9:30 PM CST for Fisher County, Texas. It was in force for 60 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
Feb 8, 2001, 9:30 PM CST (03:30 UTC)
Expired
Feb 8, 2001, 10:30 PM CST
In force
60 min
Issued by
NWS San Angelo, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Fisher County, TX

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 8, 9:00 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 3.5 hours before the alert went out and 191 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, Midland Regional, TX at 00:00Z on 2001-02-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 247 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, Midland Regional, TX at 00:00Z on 2001-02-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 302 square meters per square second.1939587897117136Sfc1 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
247 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
1237 m above ground
0-6 km bulk shear
84 kt
0-1 km storm-relative helicity
302 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.0

Open this sounding in Storm Lab

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 severe thunderstorm 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 severe thunderstorm warning went out at Feb 8, 1:56 PM CST, 7 hours 34 minutes earlier.

Area forecast discussion, Feb 8, 1:56 PM CST, 7 hours 34 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
156 PM CST THU FEB 8 2001

DAMAGING WIND/LARGE HAIL EVENT EXPECTED TONIGHT ACROSS WEST CENTRAL
TEXAS. SEE SJT THUNDERSTORM OUTLOOK OR SPSSJT FOR DETAILS.

LOW LEVEL MOISTURE HAS INCREASED DRAMATICALLY IN THE PAST 24 HRS.
SURFACE DEWPOINTS ARE NOW AROUND 60 F WITH 850 MB DEWPOINTS NEAR
10 C. INFLUX OF MOISTURE CONTRIBUTING TO CAPES OF 800-1600 J/KG...IN
SPITE OF A DENSE CIRRUS CANOPY. WITH UNSEASONABLY HIGH PRECIPITABLE
WATER VALUES...RAINFALL COULD EXCEED ONE INCH LOCALLY TONIGHT. PER
THE 12Z MESOETA...DRYLINE/PACIFIC COLD FRONT TO REACH SJT AND ABI
AROUND 9 PM...THEN EXIT OUR EASTERN COUNTIES BY 2AM. WE/LL HIGHLIGHT
SEVERE THREAT IN THE 4 PM PACKAGE. NOT ENOUGH ADJECTIVES TO DESCRIBE
DEGREE OF LIFT. MESOETA 700 MB OMEGA FIELDS TELL THE STORY HERE.
NUFF SAID.

ON FRIDAY...SOME WRAP AROUND CLOUDINESS FORESEEN ACROSS THE BIG
COUNTRY. OTHERWISE...MUCH COOLER AS COLD AIR ADVECTION DOMINATE
IN LOW LEVELS. NORTH WINDS TO PUT A CHILL IN THE AIR. COLD FRIDAY
NIGHT AS BOUNDARY LAYER DECOUPLES. STILL RATHER COOL ON SATURDAY AS
MODIFIED ARCTIC AIRMASS SLOW TO ERODE.

IN THE EXTENDED...ZONAL FLOW TO RESULT IN MILD CONDITIONS SUNDAY
THROUGH THURSDAY.

ABI 042/052/026/049 7000
SJT 045/057/025/053 6000
JCT 048/062/029/056 8000

.SJT...LAKE CAUTION.

17

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 8, 10:45 PM CSTSevere Thunderstorm WarningSJTJones, Taylor60 min
Feb 8, 11:19 PM CSTSevere Thunderstorm WarningSJTShackelford, Throckmorton56 min
Feb 8, 11:19 PM CSTSevere Thunderstorm WarningSJTCallahan56 min
Feb 8, 11:23 PM CSTSevere Thunderstorm WarningSJTColeman, Runnels67 min

Nearby

Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm 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.