Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 99, NWS Tulsa, OK

May 8, 1993Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 8, 1993, 10:37 AM CDT for Osage County, Oklahoma. It was in force for 68 min.

The area

The counties it named.

The facts

Issued: May 8, 1993, 10:37 AM CDT (15:37 UTC)
Expired: May 8, 1993, 11:45 AM CDT
In force: 68 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Osage County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 3.6 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-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: 1606 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 601 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 184 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.9

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 May 8, 10:10 AM CDT, 27 minutes earlier.

Area forecast discussion, May 8, 10:10 AM CDT, 27 minutes before

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In the hours before

Special weather statement, May 8, 7:40 AM CDT, 2 hours 57 minutes before

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Special weather statement, May 8, 8:37 AM CDT, 2 hours before

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Special weather statement, May 8, 9:24 AM CDT, 1 hour 13 minutes before

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Special weather statement, May 8, 10:01 AM CDT, 36 minutes before

OKZ026-027-029-030-081600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1001 AM CDT SAT MAY 8 1993

...NUMEROUS THUNDERSTORMS CONTINUE OVER OSAGE...PAWNEE AND WASHINGTON
COUNTIES...

...SEVERE THUNDERSTORM WATCH CONTINUES UNTIL NOON FOR CREEK...OSAGE...
NOWATA...PAWNEE...ROGERS...WASHINGTON...AND TULSA COUNTIES...

NUMEROUS THUNDERSTORMS WITH VERY HEAVY RAIN AND BRIEF GUSTY WINDS
CONTINUED OVER PARTS OF OSAGE...PAWNEE...AND WASHINGTON COUNTIES.
AT 1000 AM CDT...THE NATIONAL WEATHER SERVICE RADAR IN TULSA INDICATED
THE PRECIPITATION WAS NORTHWEST OF A LINE FROM 5 MILES EAST OF
BARTLESVILLE TO MANNFORD TO NEAR SHAMROCK IN CREEK COUNTY. MOVEMENT OF
THIS PRECIPITATION WAS TO THE NORTHEAST AT 35 MILES AN HOUR.

THE PRECIPITATION AREA WILL CONTINUE SPREADING EASTWARD INTO NORTHEAST
OKLAHOMA THIS MORNING. SHOWERS AND THUNDERSTORMS WILL SPREAD INTO THE
WESTERN PART OF THE TULSA METROPOLITAN AREA BY 1030 AM.

STAY TUNED TO NOAA WEATHER RADIO OR COMMERCIAL RADIO OR TELEVISION FOR
LATER STATEMENTS.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 10:45 PM CDT	Severe Thunderstorm Warning	TSA	Osage	60 min
May 7, 11:47 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	43 min
May 8, 12:29 AM CDT	Severe Thunderstorm Warning	TSA	Osage	31 min
May 8, 12:50 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	55 min
May 8, 6:35 AM CDT	Severe Thunderstorm Warning	TSA	Creek	40 min
May 8, 6:52 AM CDT	Severe Thunderstorm Warning	TSA	Pawnee	38 min
May 8, 7:10 AM CDT	Severe Thunderstorm Warning	TSA	Osage	65 min
May 8, 11:39 AM CDT	Severe Thunderstorm Warning	TSA	Tulsa	48 min
May 8, 2:37 PM CDT	Flash Flood Warning	TSA	Creek, Osage, Pawnee	4 hr
May 8, 6:25 PM CDT	Flash Flood Warning	TSA	Creek, Osage, Pawnee, Tulsa	6 hr
May 8, 6:25 PM CDT	Flash Flood Warning	TSA	Craig, Nowata, Rogers, Washington	6 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1993 Every severe thunderstorm warning in 1993

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.