Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 69, NWS Norman, OK

April 5, 1990Love County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 5, 1990, 4:28 PM CDT for Love County, Oklahoma. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Apr 5, 1990, 4:28 PM CDT (21:28 UTC)
Expired
Apr 5, 1990, 5:15 PM CDT
In force
47 min
Issued by
NWS Norman, OK
Area
Whole counties

County Love County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 9.5 hours before the alert went out and 142 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, Norman, OK at 12:00Z on 1990-04-05Temperature 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, Norman, OK at 12:00Z on 1990-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 square meters per square second.1939587897Sfc1 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
1416 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 5, 1:32 PM CDTSevere Thunderstorm WarningOUNBeckham43 min
Apr 5, 2:12 PM CDTSevere Thunderstorm WarningOUNMarshall33 min
Apr 5, 2:30 PM CDTSevere Thunderstorm WarningOUNBryan60 min
Apr 5, 2:45 PM CDTSevere Thunderstorm WarningOUNMarshall30 min
Apr 5, 3:21 PM CDTSevere Thunderstorm WarningOUNAtoka, Bryan54 min
Apr 5, 3:36 PM CDTSevere Thunderstorm WarningOUNPushmataha54 min
Apr 5, 4:59 PM CDTSevere Thunderstorm WarningOUNBryan31 min
Apr 5, 5:19 PM CDTSevere Thunderstorm WarningOUNLove26 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1990Every severe thunderstorm warning in 1990

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.