Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 250, NWS Tulsa, OK

August 4, 1992Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 4, 1992, 2:55 AM CDT for Osage County, Oklahoma. It was in force for 50 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 4, 1992, 2:55 AM CDT (07:55 UTC)
Expired: Aug 4, 1992, 3:45 AM CDT
In force: 50 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Osage County, OK

What was reported inside it

Time	Report	Where	Remark
Aug 4, 3:15 AM CDT	Hail 0.75	Osage, OK

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 7.9 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-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: 3308 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1157 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 162 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.3

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 Aug 3, 9:06 PM CDT, 5 hours 49 minutes earlier.

Area forecast discussion, Aug 3, 9:06 PM CDT, 5 hours 49 minutes before

AREA FORECAST DISCUSSION FOR EASTERN OKLAHOMA
NATIONAL WEATHER SERVICE TULSA OK
900 PM CDT MON AUG 3 1992

TREND OF AFTN FCST LOOKS OK SO DO NOT ANTICIPATE ANY MAJOR CHGS ON
THE EVNG UPDATE.  COMPLEX THAT M>OVD ACRS THE AREA TDA NOW WELL INTO
AR...WITH NXT UPSTRM SYSTM NOW INTO NEB AND WRN KS MOVG TWRD AREA
IN NWLY FLOW.  WL MAKE ONLY A FEW MINOR 1ST PD CHGS WITH LATER PDS
UNCHGD.

...04...

.OK...NONE.

In the hours before

Local storm report, Aug 4, 12:36 AM CDT, 2 hours 19 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
1235 AM CDT TUE AUG 04 1992

TIME (CDT)        COUNTY         REPORT

1228 AM           CREEK          DIME TO NICKEL SIZED HAIL ON THE
                    \             NORTH SIDE OF THE CITY OF SAPULPA

Local storm report, Aug 4, 1:07 AM CDT, 1 hour 48 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
Aug 4, 12:03 AM CDT	Severe Thunderstorm Warning	TSA	Creek	42 min
Aug 4, 12:42 AM CDT	Severe Thunderstorm Warning	TSA	Pawnee	48 min
Aug 4, 4:13 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	47 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1992 Every severe thunderstorm warning in 1992

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.