Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 15, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Mar 11, 2007, 1:11 AM CST for Jackson County, Oklahoma; Hardeman County, Texas. It was in force for 49 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
- Mar 11, 2007, 1:11 AM CST (07:11 UTC)
- Expired
- Mar 11, 2007, 3:00 AM CDT
- In force
- 49 min
- Issued by
- NWS Norman, OK
- Area
- Counties, with a storm outline in the text
Counties Jackson County, OK, Hardeman County, TX
The radar
The Altus AFB radar (KFDR), 56 km from the middle of the area, began a volume at 07:12 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 7.2 hours before the alert went out and 212 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
- 648 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 2292 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
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 Mar 10, 9:42 PM CST, 3 hours 29 minutes earlier.
Area forecast discussion, Mar 10, 9:42 PM CST, 3 hours 29 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 942 PM CST SAT MAR 10 2007 .DISCUSSION... RAIN AND A FEW THUNDERSTORMS HAVE ENTERED WESTERN OKLAHOMA AND THE NORTHWEST CORNER OF OUR TEXAS AREA. THE ATMOSPHERE OVER OUR FORECAST AREA IS QUITE STABLE... AND THE STORMS HAVE WEAKENED CONSIDERABLY AS THEY HAVE MOVED EAST OF THE 100TH MERIDIAN. THE UPPER-LEVEL STORM SYSTEM THAT HAS HELPED GENERATE THE PRECIPITATION WILL CONTINUE TO MOVE SOUTHEAST... SO RAIN IS EXPECTED TO CONTINUE OVERNIGHT... AND SPREAD EAST. AS THE LOW- LEVEL JET INCREASES OVERNIGHT... IT MAY HELP A FEW THUNDERSTORMS TO PRODUCE VERY HEAVY RAIN... AND MAYBE SOME HAIL. THE ONLY CHANGES PLANNED FOR THIS EVENING ARE TO SLIGHTLY MODIFY POPS TO ACCOUNT FOR THE LATEST EXPECTATIONS. && .PREV DISCUSSION... /ISSUED 228 PM CST SAT MAR 10 2007/ DISCUSSION... MAIN FOCUS IS ON UPPER LOW MOVING THROUGH THE CENTRAL ROCKIES THIS AFTN. THIS LOW WILL CONT TO AMPLIFY THIS EVENING AND CLOSE OFF TO OUR WEST LATE TONIGHT. EXPECT ACTIVITY TO DEVELOP TO OUR WEST THIS EVENING AND WORK ITS WAY EAST ACROSS MUCH OF WESTERN OKLAHOMA INTO WESTERN NORTH TEXAS OVERNIGHT AS WE COME UNDER THE INFLUENCE FROM UPPER LOW. WE WILL ALSO SEE STRENGTHENING LLJ AND SFC FRONT ALSO AID IN PRECIP DEVELOPMENT. AS CLOSED LOW MOVES SLOWLY SOUTH AND SOUTHEAST INTO WEST TX ON SUNDAY SOUTHERN PLAINS WILL BE SET UP IN A VERY FAVORABLE AREA FOR UPPER LEVEL DIFFLUENCE ALONG WITH CONT WAA AND SFC FRONT. THIS WILL MEAN WIDESPREAD RAIN AND THUNDERSTORMS ACROSS MOST IF NOT ALL OF OKLAHOMA AND NORTH TEXAS SUNDAY INTO SUNDAY NIGHT. THIS SHOULD ALSO RESULT IN MANY AREAS GETTING MUCH NEEDED RAINFALL. WIDESPREAD 2 TO 3 INCHES OF RAIN ARE NOT OUT OF THE QUESTION BY MONDAY MORNING. ENOUGH INSTABILITY MAY EXIST TO THE SOUTH OF THE SFC FRONT ACROSS SOUTHERN OK AND N TX FOR A FEW STRONGER STORMS TO BE POSSIBLE. MODELS CONT TO WOBBLE UPPER LOW OVER WEST TEXAS THROUGH TUESDAY BEFORE PUSHING IT TOWARD THE EAST BY WEDNESDAY. WILL SPREAD POPS FURTHER INTO THE FUTURE WITH BETTER CHANCES REMAINING ACROSS SOUTHERN OK AND N TX CLOSER TO CENTER OF UPPER LOW. MAY GET A BREAK IN THE PRECIP ON WED BEFORE ANOTHER COLD FRONT MOVES SOUTH THROUGH THE AREA ON THURSDAY. THIS WILL BRING ANOTHER CHANCE OF RAIN TO THE AREA... ALTHOUGH AMOUNTS WILL BE MUCH LIGHTER THAN WHAT IS EXPECTED TO OCCUR OVER THE NEXT 48HRS. GFS DOES SHOW AREA OF PRECIP DEVELOPING OVER AREA ON FRI WITH AN EMBEDDED WAVE... HOWEVER IT APPEARS THAT THIS COULD BE AIDED BY SOME FEEDBACK ISSUES AND WILL NOT BITE OFF ON THIS AT THIS POINT LEAVING FORECAST DRY BEYOND THURSDAY. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 55 60 51 65 / 50 90 60 40 HOBART OK 54 60 50 65 / 80 90 70 40 WICHITA FALLS TX 57 64 54 65 / 70 90 80 50 GAGE OK 48 55 45 67 / 80 90 50 30 PONCA CITY OK 50 56 46 67 / 30 80 40 30 DURANT OK 57 65 56 63 / 30 80 80 60 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 23/11
Hazardous weather outlook, Mar 10, 12:03 PM CST, 13 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE NORMAN OK
1203 PM CST SAT MAR 10 2007
OKZ004>048-050>052-TXZ083>090-111200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1203 PM CST SAT MAR 10 2007
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...TODAY AND TONIGHT...
THUNDERSTORM OUTLOOK...
SEVERE THUNDERSTORMS ARE NOT EXPECTED THROUGH TONIGHT.
DISCUSSION...
SHOWERS AND THUNDERSTORMS WILL DEVELOP AND SPREAD INTO WESTERN
SECTIONS OF OKLAHOMA AND NORTH TEXAS THIS EVENING AHEAD OF A STORM
SYSTEM MOVING FROM THE ROCKIES INTO THE SOUTHERN PLAINS. THE SHOWERS
AND THUNDERSTORMS ARE EXPECTED TO AFFECT THE AREA MAINLY AFTER
MIDNIGHT. LOW LEVEL MOISTURE AND INSTABILITY REMAIN LIMITED AND ARE
CURRENTLY EXPECTED TO BE LOW ENOUGH THAT SEVERE THUNDERSTORMS ARE
NOT LIKELY... HOWEVER THE INSTABILITY WILL INCREASE SOMEWHAT THROUGH
THE NIGHT AND MAY BE SUFFICIENT FOR SOME THUNDERSTORMS TO PRODUCE
SMALL HAIL AND MAY APPROACH MARGINALLY SEVERE LEVELS.
PROBABILITY TABLE...
VALID THROUGH 700 AM CST SUNDAY MAR 11.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...80 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...20 PERCENT.
OTHER HAZARDOUS WEATHER...
NONE.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...
THUNDERSTORM OUTLOOK...
WIDESPREAD SHOWERS AND EMBEDDED THUNDERSTORMS ARE EXPECTED TO SPREAD
ACROSS MUCH OF WESTERN... CENTRAL AND SOUTHEAST OKLAHOMA AND WESTERN
NORTH TEXAS ON SUNDAY. INSTABILITY MAY INCREASE SUFFICIENTLY FOR
LOW CHANCES OF ISOLATED SEVERE THUNDERSTORMS ACROSS PORTIONS OF
SOUTHERN OKLAHOMA AND NORTH TEXAS... ALTHOUGH WIDESPREAD SEVERE
WEATHER IS NOT EXPECTED. IN ADDITION... THE STORM SYSTEM WILL ONLY
MOVE SLOWLY ACROSS THE REGION THIS WEEKEND ALLOWING SOME AREAS TO
RECEIVE LOCALLY HEAVY RAINFALL SUNDAY INTO SUNDAY NIGHT.
OTHER HAZARDOUS WEATHER...
NONE.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 7 AM
ON SUNDAY MARCH 11.In the hours before
Special weather statement, Mar 10, 10:07 PM CST, 3 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1007 PM CST SAT MAR 10 2007 TXZ083-084-110430- HARDEMAN TX-FOARD TX- 1007 PM CST SAT MAR 10 2007 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR FOARD AND HARDEMAN COUNTIES. A STRONG THUNDERSTORM WAS LOCATED 8 MILES SOUTHWEST OF LAZARE AT 1007 PM CST...MOVING EAST AT 25 MPH. SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT THIS TIME. HOWEVER...SMALL HAIL...VERY HEAVY RAIN...AND WIND GUSTS TO 40 MPH ARE LIKELY.
Special weather statement, Mar 10, 10:33 PM CST, 2 hours 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1033 PM CST SAT MAR 10 2007 OKZ033-036-TXZ083-110500- JACKSON OK-HARMON OK-HARDEMAN TX- 1033 PM CST SAT MAR 10 2007 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR HARDEMAN...HARMON AND JACKSON COUNTIES. A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM 6 MILES NORTHWEST OF GOODLETT TO 12 MILES SOUTH OF GOODLETT AT 1033 PM CST...MOVING EAST-NORTHEAST AT 25 MPH. STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP. SMALL HAIL AND WIND GUSTS TO 40 MPH ARE CURRENTLY EXPECTED. PEOPLE IN HARDEMAN...HARMON AND JACKSON COUNTIES...INCLUDING THE CITY OF QUANAH...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS.
Special weather statement, Mar 10, 11:05 PM CST, 2 hours 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1105 PM CST SAT MAR 10 2007 OKZ036-TXZ083-085-110530- JACKSON OK-HARDEMAN TX-WILBARGER TX- 1105 PM CST SAT MAR 10 2007 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR HARDEMAN...JACKSON AND WILBARGER COUNTIES. A STRONG THUNDERSTORM WAS LOCATED 3 MILES WEST OF QUANAH AT 1105 PM CST...MOVING EAST AT 15 MPH. SMALL HAIL AND WINDS AROUND 50 MPH ARE LIKELY. PEOPLE IN HARDEMAN...JACKSON AND WILBARGER COUNTIES...INCLUDING THE CITY OF QUANAH...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS.
Special weather statement, Mar 10, 11:29 PM CST, 1 hour 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1129 PM CST SAT MAR 10 2007 OKZ036-TXZ083-085-110600- JACKSON OK-HARDEMAN TX-WILBARGER TX- 1129 PM CST SAT MAR 10 2007 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR HARDEMAN...JACKSON AND WILBARGER COUNTIES. A STRONG THUNDERSTORM WAS LOCATED 7 MILES EAST OF QUANAH AT 1129 PM CST...MOVING EAST AT 15 MPH. SMALL HAIL...WINDS AROUND 50 MPH...AND FREQUENT CLOUD TO GROUND LIGHTNING ARE EXPECTED. PEOPLE IN HARDEMAN...JACKSON AND WILBARGER COUNTIES...INCLUDING THE CITY OF QUANAH...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS.
Special weather statement, Mar 10, 11:50 PM CST, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1150 PM CST SAT MAR 10 2007 OKZ033-034-036-TXZ083-084-110630- JACKSON OK-GREER OK-HARMON OK-HARDEMAN TX-FOARD TX- 1150 PM CST SAT MAR 10 2007 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR FOARD...GREER...HARDEMAN... HARMON AND JACKSON COUNTIES. A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM 20 MILES WEST OF MADGE TO 24 MILES WEST OF LAZARE AT 1150 PM CST...MOVING EAST AT 20 MPH. WINDS AROUND 50 MPH ARE LIKELY. PEOPLE IN FOARD...GREER...HARDEMAN...HARMON AND JACKSON COUNTIES... INCLUDING THE CITY OF QUANAH...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS.
Special weather statement, Mar 11, 12:48 AM CST, 23 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 |
|---|---|---|---|---|
| Mar 10, 7:58 PM CST | Severe Thunderstorm Warning | OUN | Ellis | 62 min |
| Mar 11, 1:53 AM CST | Severe Thunderstorm Warning | OUN | Jackson, Kiowa, Tillman | 52 min |
| Mar 11, 4:53 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson | 37 min |
| Mar 11, 5:22 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 38 min |
| Mar 11, 6:01 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 29 min |
| Mar 11, 6:29 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 28 min |
| Mar 11, 1:33 AM CST | Severe Thunderstorm Warning | OUN | Wilbarger | 42 min |
| Mar 11, 3:15 AM CDT | Severe Thunderstorm Warning | OUN | Wilbarger | 45 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2007Severe Thunderstorm Warnings in Texas, 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.