Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 46, NWS Norman, OK

April 23, 2014Caddo County, Comanche County, Kiowa County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 23, 2014, 9:19 PM CDT for Caddo County, Comanche County, Kiowa County, Oklahoma. It was in force for 41 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 23, 2014, 9:19 PM CDT (02:19 UTC)
Expired
Apr 23, 2014, 10:00 PM CDT
In force
41 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
70.0 mph

Counties Caddo County, OK, Comanche County, OK, Kiowa County, OK

The radar

The Altus AFB radar (KFDR), 70 km from the middle of the area, began a volume at 02:22 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 23, 3:44 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.3 hours before the alert went out and 115 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 2014-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 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 2014-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.193958Sfc1 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
66 J/kg
Mixed-layer CIN
-197 J/kg
Mixed-layer LCL
2053 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 23, 3:09 PM CDT, 6 hours 10 minutes earlier.

Area forecast discussion, Apr 23, 3:09 PM CDT, 6 hours 10 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
309 PM CDT WED APR 23 2014

.DISCUSSION...
BUSY FORECAST THROUGH THIS WEEKEND...WITH SEVERE STORMS LIKELY
TODAY/TONIGHT...SATURDAY...AND PERHAPS SUNDAY.

DRYLINE IS CURRENTLY LOCATED EAST OF AMARILLO SOUTHWARD TO NEAR
BIG SPRING TX. CU FIELD BECOMING MORE ENHANCED NEAR SNYDER TX
NOW...AND EXPECT INITIAL DEEP CONVECTION THERE WHERE CURRENT
MESO ANALYSIS INDICATES HIGHEST INSTABILITY AND LOWEST CIN ALONG
THE DRYLINE. ADDITIONAL CU CAN BE SEEN JUST EAST AND NE OF AMA AS
WELL. WILL KEEP THIS DISCUSSION SHORT SINCE AT LEAST A SEVERE
WATCH WILL LIKELY BE ISSUED VERY SOON FOR WESTERN OK/N TX. MAIN
THREAT (LARGE HAIL NEAR TENNIS BALLS AND DAMAGING WINDS OVER 70
MPH) WILL REMAIN THERE THROUGH THE EARLY EVENING AND THEN PERHAPS
SHIFT EASTWARD INTO CENTRAL OK DURING THE LATE EVENING HOURS
(SMALLER HAIL BUT STILL A DAMAGING WIND THREAT). POPS SHOULD
QUICKLY DECREASE EARLY TOMORROW MORNING AS COLD FRONT PUSHES
THROUGH THE AREA. EXPECT SOME FAIRLY STRONG WINDS (25 TO 35 MPH)
BEHIND THE FRONT SO AN ADVISORY MAY EVENTUALLY BE NEEDED.

NOT MUCH GOING ON BY THURSDAY AFTERNOON/EVE AS WINDS BEGIN TO
DECREASE WITH ONSET OF SFC HIGH. BY FRIDAY AFTERNOON/EVE ANOTHER LEE
LOW WILL DEVELOP NEAR SE CO AND MOISTURE WILL START TO RETURN
UNDER THE INFLUENCE OF SSE FLOW. DIFFUSE DRYLINE MAY SETUP ALONG
TX PANHANDLE/OK BORDER...BUT WILL LEAVE ANY MENTION OF THUNDER OUT
FOR NOW AS SHORTWAVE RIDGING MOVES OVERHEAD. LOW POPS MAY NEED TO
BE INTRODUCED NEAR SW OK/W N TX WHERE CAP MAY ERODE AND ENOUGH
SFC CONVERGENCE COULD PROVIDE LIFT FOR A COUPLE OF STORMS TO
DEVELOP. BY SATURDAY MORNING A POTENT UPPER TROUGH WILL MOVE INTO
THE SOCAL REGION...AND THEN TO NEAR OR JUST WEST OF THE 4 CORNERS
BY 00Z SUN. EXPECT SFC DEWPOINTS TO MAKE IT INTO THE LOW TO MID
60S AHEAD OF THIS FEATURE LATE SAT AFTERNOON. RAPID HEIGHT FALLS
THROUGH SATURDAY EVENING...PLENTY OF INSTABILITY...AND SUFFICIENT
DEEP LAYER SHEAR WILL LIKELY RESULT IN A MORE SIGNIFICANT SEVERE
WX THREAT ALONG AND WEST OF I35. THE THREAT WILL THEN SHIFT
EASTWARD SUNDAY AFTERNOON AND EVENING WITH THE CLOSED LOW WITH
MOST OF THE COVERAGE JUST EAST OF OUR FA. HOWEVER...WILL KEEP CHC
POPS IN FOR THE EASTERN ZONES SUNDAY AS THE ECMWF AND GEMNH
SOLUTIONS ARE SLOWER.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  63  78  52  84 /  60  10   0   0
HOBART OK         59  80  50  86 /  60   0   0  10
WICHITA FALLS TX  64  82  54  86 /  50  10   0   0
GAGE OK           55  76  49  86 /  40   0   0  10
PONCA CITY OK     62  78  50  85 /  60  20   0   0
DURANT OK         65  80  54  83 /  40  20  10   0

&&

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

25/03
Hazardous weather outlook, Apr 23, 8:50 PM CDT, 29 minutes before
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In the hours before

Local storm report, Apr 23, 8:13 PM CDT, 1 hour 6 minutes before
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Local storm report, Apr 23, 8:14 PM CDT, 1 hour 5 minutes before
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Special weather statement, Apr 23, 8:28 PM CDT, 51 minutes before
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Special weather statement, Apr 23, 8:33 PM CDT, 46 minutes before
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Local storm report, Apr 23, 8:47 PM CDT, 32 minutes before
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Special weather statement, Apr 23, 8:51 PM CDT, 28 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 7:06 PM CDTSpecial Weather StatementOUNCuster54 min
Apr 23, 7:37 PM CDTSpecial Weather StatementOUNGreer, Kiowa38 min
Apr 23, 7:49 PM CDTSpecial Weather StatementOUNCaddo56 min
Apr 23, 7:50 PM CDTSpecial Weather StatementOUNDewey55 min
Apr 23, 8:01 PM CDTSpecial Weather StatementOUNTillman29 min
Apr 23, 8:28 PM CDTSpecial Weather StatementOUNKiowa32 min
Apr 23, 8:44 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita46 min
Apr 23, 8:51 PM CDTSpecial Weather StatementOUNAlfalfa, Garfield, Grant, Major54 min
Apr 23, 10:07 PM CDTSpecial Weather StatementOUNCaddo38 min
Apr 23, 10:41 PM CDTSpecial Weather StatementOUNCanadian, Grady34 min
Apr 24, 12:02 AM CDTSpecial Weather StatementOUNCotton28 min
Apr 24, 12:09 AM CDTSpecial Weather StatementOUNPayne21 min
Apr 24, 12:43 AM CDTSpecial Weather StatementOUNCarter, Cleveland, Coal, Garvin, Hughes, Jefferson and 11 more62 min
Apr 24, 1:17 AM CDTSpecial Weather StatementOUNMarshall43 min
Apr 24, 2:16 AM CDTSpecial Weather StatementOUNAtoka, Bryan59 min
Apr 24, 5:37 AM CDTSpecial Weather StatementOUNCoal, Hughes, Johnston, Pontotoc, Seminole53 min
Apr 24, 6:25 AM CDTSpecial Weather StatementOUNAtoka, Bryan, Coal, Hughes, Johnston50 min
Apr 24, 9:44 AM CDTWind AdvisoryOUNBeckham, Caddo, Comanche, Cotton, Custer, Dewey and 11 more3 hr
Apr 24, 10:34 AM CDTSpecial Weather StatementOUNPayne26 min
Apr 23, 7:01 PM CDTSevere Thunderstorm WarningOUNArcher, Baylor, Wichita, Wilbarger44 min
Apr 23, 7:37 PM CDTSevere Thunderstorm WarningOUNClay, Wichita, Wilbarger38 min
Apr 23, 8:11 PM CDTSevere Thunderstorm WarningOUNClay, Wichita49 min
Apr 23, 8:33 PM CDTSpecial Weather StatementOUNArcher27 min
Apr 23, 9:46 PM CDTSpecial Weather StatementOUNBaylor29 min
Apr 23, 10:19 PM CDTSpecial Weather StatementOUNBaylor26 min
Apr 23, 10:43 PM CDTSpecial Weather StatementOUNArcher, Wichita32 min
Apr 23, 11:10 PM CDTSevere Thunderstorm WarningOUNWichita50 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2014Every severe thunderstorm warning in 2014

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.