Alert archive / Texas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 101, NWS San Angelo, TX

May 10, 1999Coleman County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 10, 1999, 7:48 AM CDT for Coleman County, Texas. It was in force for 47 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
May 10, 1999, 7:48 AM CDT (12:48 UTC)
Expired
May 10, 1999, 8:35 AM CDT
In force
47 min
Issued by
NWS San Angelo, TX
Area
Whole counties

County Coleman County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 0.8 hours before the alert went out and 235 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, Fort Worth, TX at 12:00Z on 1999-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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, Fort Worth, TX at 12:00Z on 1999-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.193958Sfc1 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
8 J/kg
Mixed-layer CIN
-449 J/kg
Mixed-layer LCL
927 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 8:44 PM CDTSevere Thunderstorm WarningSJTCrockett61 min
May 9, 9:21 PM CDTSevere Thunderstorm WarningSJTConcho, Tom Green64 min
May 9, 9:43 PM CDTSevere Thunderstorm WarningSJTBrown62 min
May 9, 10:23 PM CDTSevere Thunderstorm WarningSJTColeman47 min
May 9, 10:42 PM CDTSevere Thunderstorm WarningSJTBrown63 min
May 9, 10:53 PM CDTFlash Flood WarningSJTBrown3 hr
May 9, 11:05 PM CDTTornado WarningSJTBrown65 min
May 9, 11:33 PM CDTSevere Thunderstorm WarningSJTMcCulloch47 min
May 9, 11:48 PM CDTSevere Thunderstorm WarningSJTSan Saba62 min
May 10, 12:54 AM CDTSevere Thunderstorm WarningSJTSan Saba31 min
May 10, 5:56 AM CDTSevere Thunderstorm WarningSJTRunnels49 min
May 10, 9:08 AM CDTSevere Thunderstorm WarningSJTBrown62 min
May 10, 5:10 PM CDTSevere Thunderstorm WarningSJTShackelford65 min

Nearby

Severe Thunderstorm Warnings in Texas, 1999Every severe thunderstorm 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.