Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 302, NWS Norman, OK

June 1, 2007McClain County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 1, 2007, 6:22 PM CDT for McClain County, Oklahoma. It was in force for 38 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
Jun 1, 2007, 6:22 PM CDT (23:22 UTC)
Expired
Jun 1, 2007, 7:00 PM CDT
In force
38 min
Issued by
NWS Norman, OK
Area
Counties, with a storm outline in the text

County McClain County, OK

The radar

The Norman radar (KTLX), 39 km from the middle of the area, began a volume at 23:25 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
Jun 1, 5:15 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.4 hours before the alert went out and 24 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 12:00Z on 2007-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 139 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 12:00Z on 2007-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
139 J/kg
Mixed-layer CIN
-300 J/kg
Mixed-layer LCL
1233 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jun 1, 2:45 PM CDT, 3 hours 37 minutes earlier.

Area forecast discussion, Jun 1, 2:45 PM CDT, 3 hours 37 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
245 PM CDT FRI JUN 1 2007

.SHORT TERM...
SCATTERED SHWRS/TSTMS CONT ACROSS PARTS OF THE FA TODAY. OUTFLOW
BOUNDARIES FROM OVERNIGHT CONVECTION WERE ACROSS PARTS OF SOUTHERN
OK AND WEST N TX THIS AFTN. STORMS IN THE TEXAS PANHANDLE MAY MOVE
INTO SW PORTIONS OF FA THIS AFTN/EARLY EVENING... WITH OTHER STORMS
POSSIBLY DEVELOPING ALONG THE OUTFLOW BOUNDARIES. A COLD FRONT ALSO
EXTENDS FROM CENTRAL KANSAS INTO THE EASTERN OK AND NORTHERN TEXAS
PANHANDLES. THE FRONT WILL SLOWLY MOVE SOUTH TONIGHT AND SATURDAY
ACROSS THE FA. A SHORTWAVE ROTATING AROUND THE UPR LOW OVER THE
NORTHERN PLAINS WILL BEGIN TO SLOWLY PUSH THE FRONT INTO THE AREA
TONIGHT. ONE OR MORE TSTM COMPLEXES ARE EXPECTED TO DEVELOP THIS
EVENING AND MOVE ACROSS PARTS OF THE AREA OVERNIGHT INTO SATURDAY
MORNING. SOME STORMS MAY BE SEVERE LATE THIS AFTN THRU SATURDAY
MORNING. LOCALLY HEAVY RAIN WILL ALSO BE POSSIBLE WHICH MAY LEAD TO
FLOODING IN SOME LOCATIONS. HOWEVER... WITH THE UNCERTAINTY WHERE
TSTM COMPLEXES WILL MOVE WILL HOLD OFF ON A FLOOD WATCH FOR NOW.
ADDITIONAL CONVECTION MAY DEVELOP ALONG/NEAR THE FRONT AND/OR
OUTFLOW BOUNDARIES SATURDAY AFTN. HOWEVER... THE EXTENT OF ACTIVITY
MAY BE SOMEWHAT DEPENDENT ON WHAT HAPPENS TONIGHT. ANOTHER ROUND OF
STORMS ON THE HIGH PLAINS OF NM/CO IS EXPECTED TO DEVELOP SATURDAY
AFTN/EVENING. THIS ACTIVITY MAY THEN MOVE INTO PORTIONS OF THE FA
SAT NIGHT/SUNDAY... WITH THE BEST CHANCE OVER SOUTHWEST OK/WEST N
TX. THE UPR LOW WILL SHIFT INTO THE GREAT LAKES REGION SUNDAY WITH
SHORTWAVE MOVING SOUTHEAST ACROSS CENTRAL/SOUTHERN PLAINS LATE
SUNDAY INTO MONDAY. ANOTHER MCS MAY DEVELOP SUNDAY AFTN/NIGHT AND
MOVE ACROSS WESTERN AND SOUTHERN PORTIONS OF FA SUN NIGHT/MONDAY.
HOWEVER... THUNDERSTORM DEVELOPMENT OR MOVEMENT INTO THE AREA OVER
THE WEEKEND WILL BE SOMEWHAT DEPENDENT ON WHAT HAPPENS THE DAY AND
NIGHT BEFORE.

.LONG TERM...
THE SHORTWAVE WILL CONT TO MOVE SOUTHEAST ACROSS THE SOUTHERN PLAINS
MONDAY... WITH SHORTWAVE RIDGING MONDAY NIGHT LEADING TO DRY
FORECAST. WITH TROUGH OVR EASTERN U.S. EARLY NEXT WEEK... NW FLOW
ALOFT WILL BE IN PLACE OVER THE REGION WHICH CAN NOT COMPLETELY RULE
OUT TSTM COMPLEXES DEVELOPING AND MOVING ACROSS PARTS OF THE AREA
EARLY NEXT WEEK. HOWEVER... WITH LIGHT SFC FLOW AND LACK OF QUICK
RETURN OF THE MOISTURE WILL KEEP FORECAST DRY. STRONGER SOUTHERLY
WINDS EXPECTED TO DEVELOP WEDNESDAY WITH BETTER MOISTURE SPREADING
BACK NORTH. MODELS DIVERGE MIDDLE TO LATE NEXT WEEK WITH UPR TROUGH
MOVING INTO WESTERN U.S. MODELS DIFFER IN STRENGTH AND TIMING OF
THIS TROUGH. WITH MODEL DIFFERENCES WILL CONT WITH LOW POPS THU-FRI.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  64  82  63  84 /  70  50  20  30
HOBART OK         64  83  63  86 /  70  50  30  30
WICHITA FALLS TX  66  82  65  87 /  70  60  30  30
GAGE OK           60  82  57  85 /  60  40  30  30
PONCA CITY OK     63  84  59  84 /  50  40  20  20
DURANT OK         68  82  65  85 /  50  50  20  30

&&

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

06/25
Hazardous weather outlook, Jun 1, 5:45 PM CDT, 37 minutes before
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In the hours before

Special weather statement, Jun 1, 6:05 PM CDT, 17 minutes before
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Local storm report, Jun 1, 6:06 PM CDT, 16 minutes before
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Local storm report, Jun 1, 6:14 PM CDT, 8 minutes before
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Special weather statement, Jun 1, 6:19 PM CDT, 3 minutes before
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Local storm report, Jun 1, 6:22 PM CDT, 0 minutes before
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Special weather statement, Jun 1, 6:22 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 10:25 PM CDTSevere Thunderstorm WarningOUNHarper65 min
May 31, 10:45 PM CDTSevere Thunderstorm WarningOUNEllis45 min
May 31, 11:21 PM CDTSevere Thunderstorm WarningOUNCuster, Washita39 min
May 31, 11:22 PM CDTSevere Thunderstorm WarningOUNWoods, Woodward53 min
May 31, 11:32 PM CDTSevere Thunderstorm WarningOUNEllis58 min
May 31, 11:35 PM CDTTornado WarningOUNWoods25 min
May 31, 11:58 PM CDTTornado WarningOUNWoods32 min
Jun 1, 12:10 AM CDTSevere Thunderstorm WarningOUNCuster37 min
Jun 1, 12:16 AM CDTSevere Thunderstorm WarningOUNMajor, Woodward59 min
Jun 1, 12:20 AM CDTTornado WarningOUNAlfalfa40 min
Jun 1, 12:22 AM CDTSevere Thunderstorm WarningOUNAlfalfa38 min
Jun 1, 12:28 AM CDTSevere Thunderstorm WarningOUNBlaine47 min
Jun 1, 12:43 AM CDTSevere Thunderstorm WarningOUNGrant62 min
Jun 1, 1:02 AM CDTSevere Thunderstorm WarningOUNWashita16 min
Jun 1, 1:03 AM CDTSevere Thunderstorm WarningOUNTillman57 min
Jun 1, 1:06 AM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher54 min
Jun 1, 1:13 AM CDTSevere Thunderstorm WarningOUNCaddo47 min
Jun 1, 1:27 AM CDTSevere Thunderstorm WarningOUNKay, Noble78 min
Jun 1, 1:41 AM CDTSevere Thunderstorm WarningOUNBlaine49 min
Jun 1, 1:46 AM CDTSevere Thunderstorm WarningOUNEllis, Harper, Woodward59 min
Jun 1, 2:10 AM CDTSevere Thunderstorm WarningOUNCanadian, Kingfisher50 min
Jun 1, 2:55 AM CDTSevere Thunderstorm WarningOUNPayne50 min
Jun 1, 3:24 AM CDTHigh Wind WarningOUNTillman73 min
Jun 1, 3:26 PM CDTSevere Thunderstorm WarningOUNCaddo, Grady49 min
Jun 1, 4:13 PM CDTSevere Thunderstorm WarningOUNCaddo47 min
Jun 1, 4:31 PM CDTSevere Thunderstorm WarningOUNPayne44 min
Jun 1, 4:56 PM CDTFlash Flood WatchOUNCaddo, Canadian, Carter, Cleveland, Comanche, Cotton and 17 more6 hr
Jun 1, 4:57 PM CDTSevere Thunderstorm WarningOUNCaddo, Grady48 min
Jun 1, 5:08 PM CDTSevere Thunderstorm WarningOUNLogan, Payne52 min
Jun 1, 5:11 PM CDTSevere Thunderstorm WarningOUNPayne49 min
Jun 1, 5:42 PM CDTSevere Thunderstorm WarningOUNGrady63 min
Jun 1, 5:56 PM CDTSevere Thunderstorm WarningOUNNoble, Payne49 min
Jun 1, 6:31 PM CDTSevere Thunderstorm WarningOUNMajor44 min
Jun 1, 6:39 PM CDTSevere Thunderstorm WarningOUNCleveland53 min
Jun 1, 6:42 PM CDTSevere Thunderstorm WarningOUNCotton, Tillman48 min
Jun 1, 6:44 PM CDTSevere Thunderstorm WarningOUNGrady46 min
Jun 1, 6:44 PM CDTSevere Thunderstorm WarningOUNPayne35 min
Jun 1, 6:46 PM CDTSevere Thunderstorm WarningOUNGrant44 min
Jun 1, 6:54 PM CDTSevere Thunderstorm WarningOUNMcClain36 min
May 31, 11:49 PM CDTSevere Thunderstorm WarningOUNFoard41 min
Jun 1, 12:12 AM CDTSevere Thunderstorm WarningOUNHardeman48 min
Jun 1, 12:53 AM CDTSevere Thunderstorm WarningOUNWilbarger52 min
Jun 1, 3:12 PM CDTSevere Thunderstorm WarningOUNFoard, Hardeman48 min
Jun 1, 3:54 PM CDTTornado WarningOUNFoard, Hardeman36 min
Jun 1, 4:28 PM CDTSevere Thunderstorm WarningOUNFoard, Hardeman, Wilbarger47 min
Jun 1, 4:42 PM CDTSevere Thunderstorm WarningOUNKnox48 min
Jun 1, 5:08 PM CDTSevere Thunderstorm WarningOUNBaylor67 min
Jun 1, 5:15 PM CDTSevere Thunderstorm WarningOUNFoard, Wilbarger45 min
Jun 1, 5:17 PM CDTSevere Thunderstorm WarningOUNKnox43 min
Jun 1, 6:01 PM CDTSevere Thunderstorm WarningOUNBaylor, Knox44 min
Jun 1, 6:28 PM CDTSevere Thunderstorm WarningOUNWichita, Wilbarger47 min
Jun 1, 6:45 PM CDTSevere Thunderstorm WarningOUNBaylor24 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2007Every severe thunderstorm warning in 2007

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.