Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 147, NWS Norman, OK

April 24, 2006Coal County, Pontotoc County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 24, 2006, 11:47 PM CDT for Coal County, Pontotoc County, Oklahoma. It was in force for 43 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
Apr 24, 2006, 11:47 PM CDT (04:47 UTC)
Expired
Apr 25, 2006, 12:30 AM CDT
In force
43 min
Issued by
NWS Norman, OK
Area
Counties, with a storm outline in the text

Counties Coal County, OK, Pontotoc County, OK

The radar

The Norman radar (KTLX), 104 km from the middle of the area, began a volume at 04:48 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 24, 8:43 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.8 hours before the alert went out and 104 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2006-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2326 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2006-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2326 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1122 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.9

Open this sounding in Storm Lab

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 Apr 24, 3:14 PM CDT, 8 hours 33 minutes earlier.

Area forecast discussion, Apr 24, 3:14 PM CDT, 8 hours 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
314 PM CDT MON APR 24 2006

.DISCUSSION...
WILL CANCEL RED FLAG WARNING EARLY AS FIRE WEATHER CONDITIONS WILL
REMAIN IN HIGH TO VERY HIGH CATEGORY. MAIN FOCUS IN THE SHORT TERM
WILL BE EVOLUTION OF SEVERE WEATHER THIS AFTERNOON AND EVENING.
OUTFLOW BOUNDARY FROM MORNING/AFTERNOON CONVECTION EXTENDING FROM
NORTHWEST OKLAHOMA INTO CENTRAL SECTIONS OF THE STATE APPEARS TO
OFFER BEST CHANCE FOR STORMS IN SHORT TERM. INSTABILITY AND SHEAR
VECTORS MORE THAN SUFFICIENT FOR SUPERCELLS. BACKED FLOW ACROSS
THIS AREA ALSO APPEARS TO OFFER BEST CHANCE FOR TORNADOES. DRYLINE
ACROSS WESTERN PARTS OF STATE WILL ALSO BE FOCUS FOR STORMS...BUT
COVERAGE WILL LIKELY BE LESS FARTHER SOUTH. STORMS COULD EVOLVE
INTO LINEAR COMPLEX AS COLD FRONT PUSHES FARTHER SOUTH INTO THE
STATE THIS EVENING AND OVERNIGHT.

CLOUDY...WINDY AND COOL CONDITIONS WILL DEVELOP BEHIND COLD FRONT WITH
LINGERING CHANCES OF STORMS OR RAIN SHOWERS DURING FIRST HALF OF
TUESDAY. HAVE TRENDED TEMPS MORE WITH MAV NUMBERS WHICH SUGGEST LESS
CLOUDS AND WARMER TEMPS WEST.

SHOULD SEE DRY WEATHER WITH A WARMING TREND WEDNESDAY INTO MOST OF
THURSDAY BEFORE SOUTHWEST LOW BEGINS TO INFLUENCE THE AREA.  APPEARS
AT THIS TIME...BEST CHANCES FOR RAIN WILL BE FRIDAY INTO SATURDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  51  57  42  66 /  50  30  10   0
HOBART OK         47  59  39  69 /  30  10  10   0
WICHITA FALLS TX  53  61  43  68 /  30  10  10   0
GAGE OK           40  60  32  68 /  20  10  10   0
PONCA CITY OK     48  55  39  66 /  60  40  10   0
DURANT OK         60  64  47  69 /  40  20  10   0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

SIX
Hazardous weather outlook, Apr 24, 10:45 PM CDT, 1 hour 2 minutes before
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In the hours before

Local storm report, Apr 24, 8:58 PM CDT, 2 hours 49 minutes before
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Local storm report, Apr 24, 9:00 PM CDT, 2 hours 47 minutes before
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Local storm report, Apr 24, 9:21 PM CDT, 2 hours 26 minutes before
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Local storm report, Apr 24, 9:38 PM CDT, 2 hours 9 minutes before
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Local storm report, Apr 24, 9:55 PM CDT, 1 hour 52 minutes before
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Local storm report, Apr 24, 10:02 PM CDT, 1 hour 45 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 7:14 PM CDTSevere Thunderstorm WarningOUNGarfield, Logan, Noble46 min
Apr 24, 7:14 PM CDTSevere Thunderstorm WarningOUNCaddo, Grady46 min
Apr 24, 7:20 PM CDTTornado WarningOUNCanadian25 min
Apr 24, 7:38 PM CDTSevere Thunderstorm WarningOUNComanche37 min
Apr 24, 7:40 PM CDTSevere Thunderstorm WarningOUNCotton35 min
Apr 24, 7:40 PM CDTTornado WarningOUNLogan35 min
Apr 24, 7:43 PM CDTTornado WarningOUNCanadian32 min
Apr 24, 7:47 PM CDTSevere Thunderstorm WarningOUNPayne58 min
Apr 24, 7:54 PM CDTSevere Thunderstorm WarningOUNGrady51 min
Apr 24, 8:06 PM CDTSevere Thunderstorm WarningOUNOklahoma39 min
Apr 24, 8:10 PM CDTSevere Thunderstorm WarningOUNStephens65 min
Apr 24, 8:13 PM CDTSevere Thunderstorm WarningOUNCanadian47 min
Apr 24, 8:15 PM CDTTornado WarningOUNStephens30 min
Apr 24, 8:22 PM CDTSevere Thunderstorm WarningOUNCotton38 min
Apr 24, 8:31 PM CDTTornado WarningOUNCotton29 min
Apr 24, 8:35 PM CDTSevere Thunderstorm WarningOUNCleveland, McClain27 min
Apr 24, 8:40 PM CDTSevere Thunderstorm WarningOUNGarvin, Grady, Stephens65 min
Apr 24, 8:42 PM CDTSevere Thunderstorm WarningOUNPayne63 min
Apr 24, 8:59 PM CDTSevere Thunderstorm WarningOUNCotton, Jefferson61 min
Apr 24, 9:41 PM CDTSevere Thunderstorm WarningOUNGarvin49 min
Apr 24, 10:20 PM CDTSevere Thunderstorm WarningOUNGrady40 min
Apr 24, 10:25 PM CDTSevere Thunderstorm WarningOUNPontotoc65 min
Apr 25, 12:25 AM CDTSevere Thunderstorm WarningOUNCoal35 min
Apr 25, 12:57 AM CDTSevere Thunderstorm WarningOUNAtoka, Coal33 min
Apr 25, 1:26 AM CDTSevere Thunderstorm WarningOUNAtoka34 min
Apr 25, 3:52 PM CDTFrost AdvisoryOUNAlfalfa, Beckham, Custer, Dewey, Ellis, Greer and 7 more17 hr
Apr 24, 8:05 PM CDTSevere Thunderstorm WarningOUNClay55 min
Apr 24, 8:56 PM CDTTornado WarningOUNClay34 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2006Every severe thunderstorm warning in 2006

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.