Alert archive / Oklahoma / Tornado Warnings in 1991

Tornado Warning 41, NWS Norman, OK

April 26, 1991Grant County, Oklahoma

NWS Norman, OK issued this tornado warning at Apr 26, 1991, 5:26 PM CDT for Grant County, Oklahoma. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Apr 26, 1991, 5:26 PM CDT (22:26 UTC)
Expired
Apr 26, 1991, 6:00 PM CDT
In force
34 min
Issued by
NWS Norman, OK
Area
Whole counties

County Grant County, OK

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 10.4 hours before the alert went out and 216 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, Dodge City, at 12:00Z on 1991-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 406 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, Dodge City, at 12:00Z on 1991-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 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
406 J/kg
Mixed-layer CIN
-358 J/kg
Mixed-layer LCL
1622 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
251 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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 25, 10:30 PM CDTSevere Thunderstorm WarningOUNJackson, Tillman45 min
Apr 25, 10:44 PM CDTSevere Thunderstorm WarningOUNComanche, Kiowa46 min
Apr 25, 10:58 PM CDTSevere Thunderstorm WarningOUNCotton47 min
Apr 25, 11:24 PM CDTSevere Thunderstorm WarningOUNCaddo, Comanche, Kiowa66 min
Apr 25, 11:59 PM CDTSevere Thunderstorm WarningOUNGrady46 min
Apr 26, 12:11 AM CDTSevere Thunderstorm WarningOUNKiowa, Washita49 min
Apr 26, 12:26 AM CDTSevere Thunderstorm WarningOUNCanadian64 min
Apr 26, 12:44 AM CDTSevere Thunderstorm WarningOUNOklahoma46 min
Apr 26, 1:00 AM CDTSevere Thunderstorm WarningOUNKiowa, Washita45 min
Apr 26, 1:15 AM CDTSevere Thunderstorm WarningOUNOklahoma45 min
Apr 26, 1:31 AM CDTSevere Thunderstorm WarningOUNBlaine, Caddo44 min
Apr 26, 1:42 AM CDTSevere Thunderstorm WarningOUNWashita48 min
Apr 26, 2:13 AM CDTSevere Thunderstorm WarningOUNCaddo62 min
Apr 26, 3:02 AM CDTSevere Thunderstorm WarningOUNCuster, Dewey43 min
Apr 26, 3:26 AM CDTSevere Thunderstorm WarningOUNBlaine49 min
Apr 26, 4:14 AM CDTSevere Thunderstorm WarningOUNBlaine, Garfield, Kingfisher, Major61 min
Apr 26, 5:27 AM CDTSevere Thunderstorm WarningOUNGarfield, Grant48 min
Apr 26, 5:57 AM CDTSevere Thunderstorm WarningOUNKay, Noble48 min
Apr 26, 6:12 AM CDTSevere Thunderstorm WarningOUNGarfield, Grant48 min
Apr 26, 6:40 AM CDTSevere Thunderstorm WarningOUNKay65 min
Apr 26, 7:41 AM CDTSevere Thunderstorm WarningOUNKay49 min
Apr 26, 3:29 PM CDTSevere Thunderstorm WarningOUNCuster, Dewey46 min
Apr 26, 3:56 PM CDTSevere Thunderstorm WarningOUNMajor34 min
Apr 26, 4:11 PM CDTSevere Thunderstorm WarningOUNDewey34 min
Apr 26, 4:23 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Major52 min
Apr 26, 4:40 PM CDTSevere Thunderstorm WarningOUNGarfield, Grant65 min
Apr 26, 4:44 PM CDTSevere Thunderstorm WarningOUNBlaine31 min
Apr 26, 5:15 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Major30 min
Apr 26, 5:42 PM CDTSevere Thunderstorm WarningOUNGarfield48 min
Apr 26, 5:50 PM CDTSevere Thunderstorm WarningOUNKay25 min
Apr 26, 5:56 PM CDTTornado WarningOUNGarfield34 min
Apr 26, 6:19 PM CDTTornado WarningOUNKay, Noble26 min
Apr 26, 6:27 PM CDTTornado WarningOUNGarfield18 min
Apr 26, 6:45 PM CDTTornado WarningOUNMajor45 min
Apr 26, 6:50 PM CDTSevere Thunderstorm WarningOUNKay40 min
Apr 26, 6:53 PM CDTSevere Thunderstorm WarningOUNPayne52 min

Nearby

Tornado Warnings in Oklahoma, 1991Every tornado warning in 1991Tornadoes in 1991

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.