Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 135, NWS Norman, OK

May 25, 1997Coal County, Hughes County, Pontotoc County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 25, 1997, 7:25 AM CDT for Coal County, Hughes County, Pontotoc County, Oklahoma. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 25, 1997, 7:25 AM CDT (12:25 UTC)
Expired: May 25, 1997, 8:00 AM CDT
In force: 35 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Coal County, OK, Hughes County, OK, Pontotoc County, OK

The radar

The Norman radar (KTLX), 100 km from the middle of the area, began a volume at 12:24 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.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 0.4 hours before the alert went out and 102 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: 491 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 928 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 25, 4:13 AM CDT, 3 hours 12 minutes earlier.

Area forecast discussion, May 25, 4:13 AM CDT, 3 hours 12 minutes before

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In the hours before

Local storm report, May 25, 3:15 AM CDT, 4 hours 10 minutes before

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Local storm report, May 25, 3:17 AM CDT, 4 hours 8 minutes before

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Local storm report, May 25, 3:43 AM CDT, 3 hours 42 minutes before

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Local storm report, May 25, 3:45 AM CDT, 3 hours 40 minutes before

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Special weather statement, May 25, 6:29 AM CDT, 56 minutes before

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Special weather statement, May 25, 6:30 AM CDT, 55 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 8:58 PM CDT	Severe Thunderstorm Warning	OUN	Beckham	47 min
May 24, 9:35 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	40 min
May 24, 9:56 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Roger Mills	49 min
May 24, 10:14 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey	46 min
May 24, 11:00 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer	45 min
May 24, 11:45 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer	45 min
May 24, 11:54 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Washita	51 min
May 25, 1:29 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady	46 min
May 25, 2:36 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain	39 min
May 25, 4:45 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Grady, McClain	45 min
May 25, 8:42 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Pushmataha	48 min
May 25, 3:38 PM CDT	Severe Thunderstorm Warning	OUN	Grady	52 min
May 25, 4:00 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain	60 min
May 25, 4:03 PM CDT	Tornado Warning	OUN	Grady, McClain	42 min
May 25, 4:40 PM CDT	Tornado Warning	OUN	Cleveland, McClain	65 min
May 25, 4:44 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche	46 min
May 25, 5:03 PM CDT	Tornado Warning	OUN	Caddo, Comanche	42 min
May 25, 5:30 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Garvin, Stephens	60 min
May 25, 5:37 PM CDT	Tornado Warning	OUN	Cleveland, McClain, Pottawatomie	53 min
May 25, 5:40 PM CDT	Tornado Warning	OUN	Grady	35 min
May 25, 6:04 PM CDT	Tornado Warning	OUN	Stephens	41 min
May 25, 6:07 PM CDT	Tornado Warning	OUN	Garvin	68 min
May 25, 6:15 PM CDT	Severe Thunderstorm Warning	OUN	Grady	30 min
May 25, 6:31 PM CDT	Severe Thunderstorm Warning	OUN	McClain, Pontotoc	59 min
May 25, 6:41 PM CDT	Tornado Warning	OUN	Murray	34 min
May 25, 6:45 PM CDT	Tornado Warning	OUN	Stephens	45 min
May 25, 6:51 PM CDT	Severe Thunderstorm Warning	OUN	Grady	24 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1997 Every severe thunderstorm warning in 1997

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; radar from the NEXRAD Level II archive.