Alert archive / Oklahoma / Tornado Warnings in 2012
Tornado Warning 8, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Apr 9, 2012, 6:29 PM CDT for Dewey County, Woodward County, Oklahoma. It was in force for 31 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
- Apr 9, 2012, 6:29 PM CDT (23:29 UTC)
- Expired
- Apr 9, 2012, 7:00 PM CDT
- In force
- 31 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
Counties Dewey County, OK, Woodward County, OK
The radar
The Vance AFB radar (KVNX), 109 km from the middle of the area, began a volume at 23:28 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 |
|---|---|---|---|
| Apr 9, 2:28 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 9, 6:27 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Lamont, OK (KLMN), launched 12:00Z, 11.5 hours before the alert went out and 155 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 641 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
372 WFUS54 KOUN 092329 TOROUN OKC043-153-100000- /O.NEW.KOUN.TO.W.0008.120409T2329Z-120410T0000Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 629 PM CDT MON APR 9 2012 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... EXTREME SOUTHEASTERN WOODWARD COUNTY IN NORTHWESTERN OKLAHOMA... NORTH CENTRAL DEWEY COUNTY IN NORTHWESTERN OKLAHOMA... * UNTIL 700 PM CDT * AT 628 PM CDT...RADAR AND STORM SPOTTERS OBSERVED A TORNADO NEAR MUTUAL. THE TORNADO WAS MOVING SOUTHEAST AT 25 MPH. * LOCATIONS IMPACTED INCLUDE... TALOGA...MUTUAL AND CESTOS. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO A TORNADO THREAT...THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. GET IN...GET DOWN...AND COVER UP. LEAVE MOBILE HOMES AND VEHICLES. TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY BUILDING. STAY AWAY FROM DOORS AND WINDOWS. && LAT...LON 3630 9914 3605 9883 3595 9915 3619 9931 TIME...MOT...LOC 2328Z 321DEG 22KT 3619 9918 $$ WR
2 follow-up statements
267 WWUS54 KOUN 092340 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 640 PM CDT MON APR 9 2012 OKC043-153-100000- /O.CON.KOUN.TO.W.0008.000000T0000Z-120410T0000Z/ WOODWARD OK-DEWEY OK- 640 PM CDT MON APR 9 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR EXTREME SOUTHEASTERN WOODWARD AND NORTH CENTRAL DEWEY COUNTIES... AT 638 PM CDT...NATIONAL WEATHER SERVICE RADAR AND STORM SPOTTERS WERE TRACKING A TORNADO. THIS TORNADO LOCATED NEAR CESTOS...MOVING SOUTHEAST AT 25 MPH. LOCATIONS IMPACTED INCLUDE... TALOGA...MUTUAL AND CESTOS. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO A TORNADO THREAT...THIS STORM LIKELY CONTAINS DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER. GET IN...GET DOWN...AND COVER UP. LEAVE MOBILE HOMES AND VEHICLES. TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY BUILDING. STAY AWAY FROM DOORS AND WINDOWS. && LAT...LON 3630 9914 3605 9883 3595 9915 3619 9931 TIME...MOT...LOC 2338Z 319DEG 21KT 3616 9914 $$ WR
285 WWUS54 KOUN 092357 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 657 PM CDT MON APR 9 2012 OKC043-153-100010- /O.EXP.KOUN.TO.W.0008.000000T0000Z-120410T0000Z/ WOODWARD OK-DEWEY OK- 657 PM CDT MON APR 9 2012 ...THE TORNADO WARNING FOR EXTREME SOUTHEASTERN WOODWARD AND NORTH CENTRAL DEWEY COUNTIES WILL EXPIRE AT 700 PM CDT... THE TORNADO THREAT HAD DIMINISHED...THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED. HOWEVER...LARGE HAIL AND DAMAGING WINDS REMAIN LIKELY AND A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA. HOWEVER LARGE HAIL IS STILL POSSIBLE WITH THIS STORM. IN ADDITION...SEVERE THUNDERSTORM REDEVELOPMENT REMAINS POSSIBLE... AND A TORNADO WATCH REMAINS IN EFFECT. LAT...LON 3630 9914 3605 9883 3595 9915 3619 9931 TIME...MOT...LOC 2355Z 321DEG 22KT 3616 9914 $$ WR
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 2:36 AM CDT | Dense Fog Advisory | OUN | Alfalfa, Atoka, Beckham, Blaine, Bryan, Caddo and 42 more | 7 hr |
| Apr 9, 3:12 PM CDT | Special Weather Statement | OUN | Harper | 33 min |
| Apr 9, 3:39 PM CDT | Severe Thunderstorm Warning | OUN | Harper, Woods | 51 min |
| Apr 9, 3:53 PM CDT | Special Weather Statement | OUN | Woodward | 37 min |
| Apr 9, 4:10 PM CDT | Severe Thunderstorm Warning | OUN | Harper, Woods, Woodward | 65 min |
| Apr 9, 4:30 PM CDT | Severe Thunderstorm Warning | OUN | Woodward | 60 min |
| Apr 9, 5:03 PM CDT | Special Weather Statement | OUN | Beckham | 42 min |
| Apr 9, 5:15 PM CDT | Severe Thunderstorm Warning | OUN | Major, Woods, Woodward | 60 min |
| Apr 9, 5:17 PM CDT | Special Weather Statement | OUN | Harper | 28 min |
| Apr 9, 5:25 PM CDT | Tornado Warning | OUN | Woodward | 35 min |
| Apr 9, 5:29 PM CDT | Special Weather Statement | OUN | Dewey | 31 min |
| Apr 9, 5:43 PM CDT | Areal Flood Advisory | OUN | Harper, Woodward | 3 hr |
| Apr 9, 5:50 PM CDT | Tornado Warning | OUN | Dewey, Woodward | 40 min |
| Apr 9, 5:51 PM CDT | Special Weather Statement | OUN | Beckham | 24 min |
| Apr 9, 6:00 PM CDT | Severe Thunderstorm Warning | OUN | Woodward | 45 min |
| Apr 9, 6:26 PM CDT | Severe Thunderstorm Warning | OUN | Dewey, Ellis, Major, Roger Mills, Woodward | 64 min |
| Apr 9, 6:32 PM CDT | Special Weather Statement | OUN | Harmon | 28 min |
| Apr 9, 6:47 PM CDT | Severe Thunderstorm Warning | OUN | Harmon | 58 min |
Nearby
Tornado Warnings in Oklahoma, 2012Every tornado warning in 2012Tornadoes in 2012
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.