Alert archive / Oklahoma / Tornado Warnings in 1992

Tornado Warning 18, NWS Norman, OK

May 11, 1992Pontotoc County, Oklahoma

NWS Norman, OK issued this tornado warning at May 11, 1992, 1:55 PM CDT for Pontotoc 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: May 11, 1992, 1:55 PM CDT (18:55 UTC)
Expired: May 11, 1992, 2:45 PM CDT
In force: 50 min
Issued by: NWS Norman, OK
Area: Whole counties

County Pontotoc County, OK

The radar

The Norman radar (KTLX), 86 km from the middle of the area, began a volume at 18:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
May 11, 2:15 PM CDT	Tornado F2	Pontotoc, 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 12:00Z, 6.9 hours before the alert went out and 85 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 736 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: -129 m²/s²
0-3 km storm-relative helicity: -53 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 tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 11, 12:57 PM CDT, 58 minutes before

OKZ004>021-121200-

OKLAHOMA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
100 PM CDT MON MAY 11 1992

THIS THUNDERSTORM OUTLOOK IS VALID ONLY FOR OKLAHOMA ZONES 4 THROUGH 21.

THERE I

Special weather statement, May 11, 1:20 PM CDT, 35 minutes before

TXZ019-020-111915-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
119 PM CDT MON MAY 11 1992

...TORNADO WATCH IN EFFECT UNTIL 800 PM CDT TONIGHT FOR COTTON
COUNTY OF SOUTH CENTRAL OKLAHOMA...

AT 118 PM THE WICHITA FALLS RADAR SHOWED STRONG THUNDERSTORMS
DEVELOPING RAPIDLY ACROSS PARTS OF CENTRAL AND SOUTH CENTRAL OKLAHOMA
FROM WEST OF STILLWATER EXTENDING SOUTHEAST TO STONEWALL AND ARDMORE.

MOVEMENT OF THUNDERSTORMS W[AS TO THE NORTHEAST AT 25 MPH.

NO NORTH CENTRAL TEXAS COUNTIES ARE INCLUDED IN THE TORNADO WATCH
AREA. THE TORNADO WATCH AREA GENERALLY COVERS MUCH OF CENTRAL...
EASTERN AND SOUTHEAST OKLAHOMA.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 7:12 PM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	63 min
May 10, 7:56 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady	49 min
May 10, 8:36 PM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	54 min
May 10, 8:42 PM CDT	Severe Thunderstorm Warning	OUN	Garfield	48 min
May 10, 9:24 PM CDT	Severe Thunderstorm Warning	OUN	Logan, Oklahoma	66 min
May 10, 9:30 PM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	60 min
May 10, 10:18 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	57 min
May 11, 1:15 PM CDT	Severe Thunderstorm Warning	OUN	McClain, Pontotoc, Pottawatomie, Seminole	45 min
May 11, 1:22 PM CDT	Severe Thunderstorm Warning	OUN	Murray	53 min
May 11, 1:29 PM CDT	Tornado Warning	OUN	Garvin, Pontotoc	31 min
May 11, 1:39 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	51 min
May 11, 1:45 PM CDT	Severe Thunderstorm Warning	OUN	Logan, Payne	60 min
May 11, 1:45 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	60 min
May 11, 2:15 PM CDT	Severe Thunderstorm Warning	OUN	Hughes	60 min
May 11, 2:21 PM CDT	Severe Thunderstorm Warning	OUN	Love	69 min
May 11, 2:37 PM CDT	Severe Thunderstorm Warning	OUN	Johnston, Murray	68 min
May 11, 2:45 PM CDT	Tornado Warning	OUN	Coal, Pontotoc	45 min
May 11, 3:15 PM CDT	Severe Thunderstorm Warning	OUN	Hughes	45 min
May 11, 3:26 PM CDT	Severe Thunderstorm Warning	OUN	Love, Marshall	64 min
May 11, 3:45 PM CDT	Tornado Warning	OUN	Coal	45 min
May 11, 4:19 PM CDT	Tornado Warning	OUN	Atoka	36 min
May 11, 4:27 PM CDT	Tornado Warning	OUN	Bryan	48 min
May 11, 4:30 PM CDT	Severe Thunderstorm Warning	OUN	Coal	60 min
May 11, 4:37 PM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	68 min
May 11, 4:50 PM CDT	Severe Thunderstorm Warning	OUN	Atoka	55 min
May 11, 4:58 PM CDT	Tornado Warning	OUN	Kay	47 min
May 11, 5:03 PM CDT	Tornado Warning	OUN	Bryan	42 min
May 11, 5:06 PM CDT	Severe Thunderstorm Warning	OUN	Marshall	54 min
May 11, 5:21 PM CDT	Severe Thunderstorm Warning	OUN	Pushmataha	69 min
May 11, 5:44 PM CDT	Severe Thunderstorm Warning	OUN	Choctaw	61 min
May 11, 5:45 PM CDT	Severe Thunderstorm Warning	OUN	Kay	30 min
May 11, 5:58 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	47 min
May 11, 6:28 PM CDT	Severe Thunderstorm Warning	OUN	Pushmataha	47 min

Nearby

Tornado Warnings in Oklahoma, 1992 Every tornado warning in 1992 Tornadoes 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; radar from the NEXRAD Level II archive.