Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 11, NWS Tulsa, OK

March 27, 1989Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 27, 1989, 8:54 PM CST for Osage County, Oklahoma. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Mar 27, 1989, 8:54 PM CST (02:54 UTC)
Expired
Mar 27, 1989, 10:00 PM CST
In force
66 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Osage 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 00:00Z, 2.9 hours before the alert went out and 181 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 00:00Z on 1989-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1241 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, Norman, OK at 00:00Z on 1989-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 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
1241 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
825 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
295 m²/s²
Significant tornado parameter
2.2
Supercell composite
8.7

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 Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 6:50 PM CSTSevere Thunderstorm WarningTSAOsage, Washington55 min
Mar 27, 7:10 PM CSTTornado WarningTSAOsage50 min
Mar 27, 8:36 PM CSTSevere Thunderstorm WarningTSAPawnee69 min
Mar 27, 9:41 PM CSTSevere Thunderstorm WarningTSACreek, Osage, Pawnee64 min
Mar 28, 8:08 AM CSTFlash Flood WarningTSASebastian2 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1989Every severe thunderstorm warning in 1989

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.