Alert archive / Oklahoma / Tornado Warnings in 2007
Tornado Warning 4, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Mar 29, 2007, 4:47 PM CDT for Grant County, Oklahoma. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 29, 2007, 4:47 PM CDT (21:47 UTC)
- Expired
- Mar 29, 2007, 5:15 PM CDT
- In force
- 28 min
- Issued by
- NWS Norman, OK
- Area
- Counties, with a storm outline in the text
County Grant County, OK
The radar
The Vance AFB radar (KVNX), 11 km from the middle of the area, began a volume at 21:49 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
Norman, OK (KOUN), launched 12:00Z, 9.8 hours before the alert went out and 182 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
- 1152 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 475 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 248 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 6.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KOUN 292147 TOROUN OKC053-292215- /O.NEW.KOUN.TO.W.0004.070329T2147Z-070329T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 447 PM CDT THU MAR 29 2007 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... GRANT COUNTY IN NORTHERN OKLAHOMA... * UNTIL 515 PM CDT * AT 447 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES SOUTH OF WAKITA...MOVING NORTH AT 35 MPH. THIS STORM MAY HAVE PRODUCED A TORNADO IN GARFIELD COUNTY. * LOCATIONS IN THE WARNING INCLUDE WAKITA. TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3668 9811 3664 9790 3693 9786 3697 9810 $$ JAMES
2 follow-up statements
000 WWUS54 KOUN 292152 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 452 PM CDT THU MAR 29 2007 OKC053-292215- /O.CON.KOUN.TO.W.0004.000000T0000Z-070329T2215Z/ GRANT OK- 452 PM CDT THU MAR 29 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR GRANT COUNTY... AT 452 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 10 MILES SOUTHWEST OF WAKITA...MOVING NORTH AT 30 MPH. POWER POLES WERE DOWNED AND SHEDS WERE DAMAGED WHEN THIS STORM WAS ABOUT 4 MILES NORTH OF CARRIER IN GAFIELD COUNTY. * LOCATIONS IN THE WARNING INCLUDE WAKITA. LAT...LON 3668 9811 3664 9790 3693 9786 3697 9810 $$ JAMES
000 WWUS54 KOUN 292207 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 506 PM CDT THU MAR 29 2007 OKC053-292216- /O.EXP.KOUN.TO.W.0004.000000T0000Z-070329T2215Z/ GRANT OK- 506 PM CDT THU MAR 29 2007 ...THE TORNADO WARNING FOR GRANT COUNTY EXPIRES AT 515 PM CDT... THE STORM THAT PROMPTED THE TORNADO WARNING HAS WEAKENED. IF THE STORM DOES NOT INTENSIFY...THE TORNADO WARNING WILL BE ALLOWED TO EXPIRE AT 515 PM. LAT...LON 3668 9811 3664 9790 3693 9786 3697 9810 $$ JAMES
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 1:04 AM CDT | Severe Thunderstorm Warning | OUN | Ellis | 26 min |
| Mar 29, 1:11 AM CDT | Severe Thunderstorm Warning | OUN | Harper | 49 min |
| Mar 29, 3:45 PM CDT | Flood Watch | OUN | Alfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 33 more | 36 hr |
| Mar 29, 4:12 PM CDT | Tornado Warning | OUN | Canadian, Oklahoma | 33 min |
Nearby
Tornado Warnings in Oklahoma, 2007Every tornado warning in 2007Tornadoes 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.