Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 153, NWS Tulsa, OK

April 29, 1994Haskell County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 29, 1994, 11:05 PM CDT for Haskell County, Oklahoma. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Apr 29, 1994, 11:05 PM CDT (04:05 UTC)
Expired
Apr 30, 1994, 12:00 AM CDT
In force
55 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Haskell County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.1 hours before the alert went out and 207 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 1994-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLEL10008507005003002001001 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 1994-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 479 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
6 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
479 m²/s²
0-3 km storm-relative helicity
788 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 29, 9:24 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, Apr 29, 9:24 PM CDT, 1 hour 41 minutes before
AREA FORECAST DISCUSSION FOR EASTERN OKLAHOMA
NATIONAL WEATHER SERVICE TULSA OK
922 PM CDT FRI APR 29 1994

HV ADDED SVR TO SE OK ZONES.  JUST ADVZD A SELS WATCH
WL BE ISSUED FOR PARTS OF THE AREA.  WL HOLD ZONES TIL
SELS COORD CALL.  SHUD BE ONLY A SHORT DELAY.

/8

.TUL...FFA ZONES 54 THRU 77...ALL OF THE FA.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 29, 9:53 PM CDTSevere Thunderstorm WarningTSAPittsburg67 min
Apr 29, 10:47 PM CDTSevere Thunderstorm WarningTSALatimer, Pittsburg58 min
Apr 29, 11:36 PM CDTSevere Thunderstorm WarningTSALeFlore69 min
Apr 29, 11:45 PM CDTSevere Thunderstorm WarningTSAHaskell41 min
Apr 30, 12:05 AM CDTSevere Thunderstorm WarningTSASequoyah40 min
Apr 30, 12:24 AM CDTSevere Thunderstorm WarningTSACrawford, Sebastian58 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1994Every severe thunderstorm warning in 1994

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.