Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 53, NWS Tulsa, OK

April 5, 1988Sequoyah County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 5, 1988, 4:29 PM CDT for Sequoyah County, Oklahoma. It was in force for 61 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: Apr 5, 1988, 4:29 PM CDT (21:29 UTC)
Expired: Apr 5, 1988, 5:30 PM CDT
In force: 61 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Sequoyah County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Apr 5, 4:38 PM CDT	Hail 0.75	Sequoyah, 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

Springfield, MO (KUMN), launched 12:00Z, 9.5 hours before the alert went out and 178 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: 160 J/kg
Mixed-layer CIN: -285 J/kg
Mixed-layer LCL: 1334 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 217 m²/s²
0-3 km storm-relative helicity: 265 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.

In the hours before

Local storm report, Apr 5, 3:08 PM CDT, 1 hour 21 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
306 PM CDT TUE APR 05 1988

 TIME/CST COUNTY      EVENT  (CD=CIVIL DEFENSE  OHP=OK HIGHWAY PAT'L)
 304  PM  OKMULGEE    GOLF BALL SIZE HAIL COVERING THE GROUND IN
                      OKMULGEE OK. ONE INCH HAD ALREADY ACCUMULATED
                      AND STILL OCCURRING. REPORTED BY RESIDENT.

                                                         k

Local storm report, Apr 5, 4:03 PM CDT, 26 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 5, 2:57 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee, Okmulgee	63 min
Apr 5, 3:25 PM CDT	Tornado Warning	TSA	Muskogee, Okmulgee, Wagoner	65 min
Apr 5, 3:41 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	64 min
Apr 5, 4:06 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Delaware	69 min
Apr 5, 4:13 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	62 min
Apr 5, 4:32 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Muskogee	58 min
Apr 5, 4:54 PM CDT	Severe Thunderstorm Warning	TSA	Adair	51 min
Apr 5, 5:20 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	55 min
Apr 5, 4:17 PM CDT	Severe Thunderstorm Warning	TSA	Benton	58 min
Apr 5, 4:45 PM CDT	Severe Thunderstorm Warning	TSA	Washington	60 min
Apr 5, 5:20 PM CDT	Severe Thunderstorm Warning	TSA	Crawford	55 min
Apr 5, 5:34 PM CDT	Severe Thunderstorm Warning	TSA	Madison	56 min
Apr 5, 5:34 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	56 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1988 Every severe thunderstorm warning in 1988

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.