Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 307, NWS Fort Worth, TX

July 15, 1997McLennan County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jul 15, 1997, 5:32 PM CDT for McLennan County, Texas. It was in force for 58 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 15, 1997, 5:32 PM CDT (22:32 UTC)
Expired
Jul 15, 1997, 6:30 PM CDT
In force
58 min
Issued by
NWS Fort Worth, TX
Area
Whole counties

County McLennan County, TX

What was reported inside it

TimeReportWhereRemark
Jul 15, 5:47 PM CDTThunderstorm Wind 52Waco, TXStrong winds blew down trees and power lines.
Jul 15, 6:30 PM CDTThunderstorm WindMoody, TXStrong winds destroyed a mobile home and two barns.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 15, 1:15 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Fort Sill, OK (KFSI), launched 12:00Z, 10.5 hours before the alert went out and 362 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 Sill, OK at 12:00Z on 1997-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 430 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Sill, OK at 12:00Z on 1997-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.1939Sfc1 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
430 J/kg
Mixed-layer CIN
-235 J/kg
Mixed-layer LCL
1993 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
29 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 Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 15, 12:55 PM CDTSevere Thunderstorm WarningFWDHopkins65 min
Jul 15, 1:37 PM CDTSevere Thunderstorm WarningFWDHunt, Rains68 min
Jul 15, 1:49 PM CDTSevere Thunderstorm WarningFWDFannin26 min
Jul 15, 2:15 PM CDTSevere Thunderstorm WarningFWDCollin, Dallas, Grayson, Rockwall60 min
Jul 15, 3:21 PM CDTSevere Thunderstorm WarningFWDAnderson69 min
Jul 15, 3:35 PM CDTSevere Thunderstorm WarningFWDDallas, Denton, Tarrant55 min
Jul 15, 4:08 PM CDTSevere Thunderstorm WarningFWDTarrant52 min
Jul 15, 5:08 PM CDTSevere Thunderstorm WarningFWDMontague52 min
Jul 15, 5:27 PM CDTSevere Thunderstorm WarningFWDBosque, Hill63 min
Jul 15, 6:13 PM CDTSevere Thunderstorm WarningFWDJack77 min

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.