Alert archive / Texas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 45, NWS Austin/San Antonio, TX

March 27, 1999Edwards County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 27, 1999, 5:29 PM CST for Edwards County, Texas. It was in force for 61 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
Mar 27, 1999, 5:29 PM CST (23:29 UTC)
Expired
Mar 27, 1999, 6:30 PM CST
In force
61 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Edwards County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.5 hours before the alert went out and 86 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, Del Rio, TX at 12:00Z on 1999-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Del Rio, TX at 12:00Z on 1999-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 324 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
507 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
324 m²/s²
0-3 km storm-relative helicity
353 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 4:55 PM CSTTornado WarningEWXKinney, Val Verde60 min
Mar 27, 5:20 PM CSTSevere Thunderstorm WarningEWXMaverick60 min
Mar 27, 5:41 PM CSTFlash Flood WarningEWXVal Verde3 hr
Mar 27, 5:55 PM CSTSevere Thunderstorm WarningEWXUvalde, Zavala90 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.