Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 155, NWS Tulsa, OK

April 29, 1994Haskell County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 29, 1994, 11:45 PM CDT for Haskell County, Oklahoma. It was in force for 41 min.

The area

The counties it named.

The facts

Issued: Apr 29, 1994, 11:45 PM CDT (04:45 UTC)
Expired: Apr 30, 1994, 12:26 AM CDT
In force: 41 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Haskell County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.8 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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, 2 hours 21 minutes earlier.

Area forecast discussion, Apr 29, 9:24 PM CDT, 2 hours 21 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.

In the hours before

Special weather statement, Apr 29, 11:22 PM CDT, 23 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 9:53 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	67 min
Apr 29, 10:47 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	58 min
Apr 29, 11:05 PM CDT	Severe Thunderstorm Warning	TSA	Haskell	55 min
Apr 29, 11:36 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	69 min
Apr 30, 12:05 AM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	40 min
Apr 30, 12:24 AM CDT	Severe Thunderstorm Warning	TSA	Crawford, Sebastian	58 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1994 Every 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.