Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 334, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jun 7, 2007, 11:47 PM CDT for Carter County, Murray 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
- Jun 7, 2007, 11:47 PM CDT (04:47 UTC)
- Expired
- Jun 8, 2007, 12:30 AM CDT
- In force
- 43 min
- Issued by
- NWS Norman, OK
- Area
- Counties, with a storm outline in the text
Counties Carter County, OK, Murray County, OK
The radar
The Norman radar (KTLX), 108 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 7, 3:57 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 7, 11:43 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 4.8 hours before the alert went out and 97 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.
- Mixed-layer CAPE
- 3921 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1334 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 182 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 21.8
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 7, 9:30 PM CDT, 2 hours 17 minutes earlier.
Area forecast discussion, Jun 7, 9:30 PM CDT, 2 hours 17 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 930 PM CDT THU JUN 7 2007 TSTM DEVELOPMENT HAS BEEN MUCH MORE SPARSE ACROSS THE CWA THAN ANTICIPATED EARLIER TODAY AS STRONG CAP AND WEAK CONVERGENCE LIMITED DEVELOPMENT. A FEW STRONG STORMS HAVE MANAGED TO DEVELOP IN FAR SW OK AND THESE STORMS HAVE BEGUN TO INCREASE IN INTENSITY A BIT. COLD FRONT CONTINUES TO CHARGE SWD THROUGH KANSAS EARLY THIS EVENING AND RADAR AND MESONET SHOW FRONT NOW MOVING INTO FAR NW PORTIONS OF THE FA...A BIT FASTER THAN PROGGED. STILL THINK THAT MORE WIDESPREAD TSTM ACTIVITY WILL DEVELOP AND FRONT PUSHES SWD INTO MOIST AIRMASS ACROSS CENTRAL AND EASTERN PARTS OF THE CWA. THUS WILL ADJUST GRIDS TO REFLECT MORE ISOLD ACTIVITY THIS EVENING BECOMING MORE WIDESPREAD AFTER MIDNIGHT. AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 240 PM CDT THU JUN 7 2007 .DISCUSSION... SETTING UP TO BE AN ACTIVE EVENING ACROSS THE AREA. LARGE STORM SYSTEM ACROSS UPPER MID WEST INTO THE PLAINS WILL PRODUCE QUITE A BIT OF SEVERE WX TODAY AND TONIGHT. SHOULD SEE SCATTERED STRONG TO SEVERE STORMS DEVELOP LATE THIS AFTN ALONG DRY LINE... WHICH WILL BE NEAR OR JUST NORTH OF THE I-44 CORRIDOR BY LATE THIS AFTN AND IS EXPECTED TO REMAIN IN THIS GENERAL LOCATION THROUGH MUCH OF THE EVENING. BY LATER THIS EVENING AS COLD FRONT CATCHES THE DRY LINE AND ADDITIONAL UPPER SUPPORT MOVES OUT INTO THE PLAINS... MORE WIDESPREAD ACTIVITY IS EXPECTED ACROSS SOUTHEAST QUADRANT OF CWA. FRONT IS EXPECTED TO PUSH SOUTH INTO NORTH TEXAS FRIDAY MORNING WITH BETTER CHANCES SHIFTING SOUTH OF THE AREA BY TOMORROW AFTN. WAA PATTERN SETS UP ACROSS THE PLAINS FRI NIGHT MAKING FOR QUICK RETURN OF LOW LEVEL MOISTURE AND ADDITIONAL SHOWER/TSTM DEVELOPMENT OVER AREA. THINGS BEGIN TO DRY OUT BY LATE IN THE WEEKEND/EARLY NEXT WEEK... ALTHOUGH WEST TO SOUTHWEST MID LEVEL FLOW MAY ALLOW STORMS THAT DEVELOP ACROSS THE HIGH PLAINS TO APPROACH NORTHWEST OKLAHOMA. WARMER WX CONT THROUGH MUCH OF NEXT WEEK... BEFORE PERHAPS ANOTHER WEAK SFC FRONT PUSHES SOUTH INTO THE AREA BY THU OR FRI OF NEXT WEEK. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 62 79 62 85 / 50 10 20 30 HOBART OK 61 79 63 88 / 20 10 30 30 WICHITA FALLS TX 67 82 65 89 / 30 30 20 30 GAGE OK 50 78 54 85 / 10 0 20 30 PONCA CITY OK 59 77 58 82 / 30 10 20 20 DURANT OK 72 81 68 89 / 40 50 20 30 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 24/30
Hazardous weather outlook, Jun 7, 10:59 PM CDT, 48 minutes before
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Special weather statement, Jun 7, 9:04 PM CDT, 2 hours 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 904 PM CDT THU JUN 7 2007 OKZ044-080230- COTTON OK- 904 PM CDT THU JUN 7 2007 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR COTTON COUNTY. A STRONG THUNDERSTORM WAS LOCATED 8 MILES SOUTHWEST OF WALTERS AT 904 PM CDT...MOVING NORTHEAST AT 25 MPH. SMALL HAIL... WINDS AROUND 50 MPH AND FREQUENT LIGHTNING ARE POSSIBLE. PEOPLE IN COTTON COUNTY SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS. 30
Special weather statement, Jun 7, 9:09 PM CDT, 2 hours 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 909 PM CDT THU JUN 7 2007 OKZ037-080230- TILLMAN OK- 909 PM CDT THU JUN 7 2007 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR TILLMAN COUNTY. A STRONG THUNDERSTORM WAS LOCATED 3 MILES SOUTH OF GRANDFIELD AT 909 PM CDT...MOVING NORTHEAST AT 25 MPH. SMALL HAIL AND WINDS AROUND 50 MPH ARE POSSIBLE. PEOPLE IN TILLMAN COUNTY SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS. 30
Special weather statement, Jun 7, 9:43 PM CDT, 2 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 943 PM CDT THU JUN 7 2007 OKZ039-080300- STEPHENS OK- 943 PM CDT THU JUN 7 2007 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR STEPHENS COUNTY. A STRONG THUNDERSTORM WAS LOCATED OVER CORUM AT 943 PM CDT...MOVING NORTHEAST AT 25 MPH. A SEVERE THUNDERSTORM WAS LOCATED ACROSS EASTERN COTTON COUNTY AND IF IT HOLDS TOGETHER WILL MOVE INTO WESTERN STEPHENS COUNTY BY 10 PM. SMALL HAIL... WINDS AROUND 50 MPH AND FREQUENT LIGHTNING ARE POSSIBLE. PEOPLE IN STEPHENS COUNTY...INCLUDING THE CITY OF DUNCAN...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS. 30
Local storm report, Jun 7, 10:32 PM CDT, 1 hour 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1032 PM CDT THU JUN 07 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1032 PM HAIL COMANCHE 34.37N 97.97W
06/07/2007 E0.88 INCH STEPHENS OK AMATEUR RADIO
&&
TYSpecial weather statement, Jun 7, 11:16 PM CDT, 31 minutes before
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</html>Special weather statement, Jun 7, 11:29 PM CDT, 18 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 9:12 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 48 min |
| Jun 7, 9:50 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 40 min |
| Jun 7, 10:00 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 45 min |
| Jun 7, 10:27 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 48 min |
| Jun 7, 11:12 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 48 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.