Alert archive / Oklahoma / Tornado Warnings in 2012
Tornado Warning 33, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Apr 15, 2012, 12:00 AM CDT for Ellis County, Harper County, Woodward County, Oklahoma. It was in force for 30 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 15, 2012, 12:00 AM CDT (05:00 UTC)
- Expired
- Apr 15, 2012, 12:30 AM CDT
- In force
- 30 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
Counties Ellis County, OK, Harper County, OK, Woodward County, OK
The radar
The Vance AFB radar (KVNX), 130 km from the middle of the area, began a volume at 04:59 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 15, 12:18 AM CDT | TORNADO 3 | Woodward, OK | *** 6 FATAL, 29 INJ *** THE TORNADO BEGIN AROUND 2350 CDT 3 MILES NORTHEAST OF ARNETT AND CONTINUED NORTHEAST INTO WOODWARD COUNTY. THE TORNADO MOVED INTO THE SOUTHWEST SIDES OF THE CITY LIMITS OF WOODWARD AROUND 0018 CDT, AND EXITED ON THE NORTH-NORTHWEST SID |
| Apr 15, 12:18 AM CDT | TORNADO | Woodward, OK | MULTIPLE REORTS OF STRUCTURAL DAMAGE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 14, 5:24 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 5.0 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
- 2712 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1140 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 369 m²/s²
- 0-3 km storm-relative helicity
- 445 m²/s²
- Significant tornado parameter
- 6.0
- Supercell composite
- 30.6
The text
As transmitted, in the capitals the NWS used until 2016.
970 WFUS54 KOUN 150500 TOROUN OKC045-059-153-150530- /O.NEW.KOUN.TO.W.0033.120415T0500Z-120415T0530Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 1200 AM CDT SUN APR 15 2012 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... EXTREME SOUTHEASTERN HARPER COUNTY IN NORTHWESTERN OKLAHOMA... WOODWARD COUNTY IN NORTHWESTERN OKLAHOMA... EXTREME NORTHEASTERN ELLIS COUNTY IN NORTHWESTERN OKLAHOMA... * UNTIL 1230 AM CDT * AT 1159 PM CDT...TRAINED STORM SPOTTERS REPORTED A TORNADO 7 MILES SOUTHEAST OF GAGE. THIS TORNADO WAS MOVING NORTHEAST AT 45 MPH. * LOCATIONS IMPACTED INCLUDE... WOODWARD...FARGO AND TANGIER. PRECAUTIONARY/PREPAREDNESS ACTIONS... GET IN...GET DOWN AND COVER UP. TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY BUILDING. STAY AWAY FROM DOORS AND WINDOWS. THE TORNADO WILL BE VERY DIFFICULT TO SEE IN THE DARK. DO NOT WAIT. TAKE COVER NOW. && LAT...LON 3663 9953 3641 9915 3614 9961 3624 9980 TIME...MOT...LOC 0459Z 214DEG 41KT 3625 9965 $$ AUSTIN
1 follow-up statement
266 WWUS54 KOUN 150508 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 1208 AM CDT SUN APR 15 2012 OKC045-059-153-150530- /O.CON.KOUN.TO.W.0033.000000T0000Z-120415T0530Z/ HARPER OK-WOODWARD OK-ELLIS OK- 1208 AM CDT SUN APR 15 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR EXTREME SOUTHEASTERN HARPER...WOODWARD AND EXTREME NORTHEASTERN ELLIS COUNTIES... AT 1204 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM SPOTTERS WERE TRACKING A TORNADO WITH A HISTORY OF PRODUCING STRUCTURAL DAMAGE. THIS TORNADO WAS LOCATED NEAR FARGO...MOVING NORTHEAST AT 60 MPH. LOCATIONS IMPACTED INCLUDE... WOODWARD...MOORELAND...FARGO AND TANGIER. PRECAUTIONARY/PREPAREDNESS ACTIONS... GET IN...GET DOWN AND COVER UP. TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY BUILDING. STAY AWAY FROM DOORS AND WINDOWS. THE TORNADO WILL BE VERY DIFFICULT TO SEE IN THE DARK. DO NOT WAIT. TAKE COVER NOW. && LAT...LON 3663 9953 3641 9915 3617 9956 3630 9976 TIME...MOT...LOC 0504Z 214DEG 41KT 3630 9961 $$ AUSTIN
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:06 PM CDT | Tornado Warning | OUN | Alfalfa, Woods | 54 min |
| Apr 14, 7:09 PM CDT | Tornado Warning | OUN | Major, Woods | 36 min |
| Apr 14, 7:35 PM CDT | Tornado Warning | OUN | Alfalfa, Woods | 40 min |
| Apr 14, 8:07 PM CDT | Tornado Warning | OUN | Alfalfa | 38 min |
| Apr 14, 10:35 PM CDT | Severe Thunderstorm Warning | OUN | Ellis, Harper, Woods, Woodward | 40 min |
| Apr 14, 10:56 PM CDT | Severe Thunderstorm Warning | OUN | Ellis, Roger Mills, Woodward | 49 min |
| Apr 14, 11:13 PM CDT | Severe Thunderstorm Warning | OUN | Ellis, Harper, Woods, Woodward | 62 min |
| Apr 14, 11:19 PM CDT | Special Weather Statement | OUN | Alfalfa, Beckham, Dewey | 56 min |
| Apr 14, 11:41 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Custer, Dewey, Ellis, Greer, Harmon and 3 more | 64 min |
| Apr 14, 11:53 PM CDT | Severe Thunderstorm Warning | OUN | Ellis, Roger Mills, Woodward | 37 min |
| Apr 15, 12:03 AM CDT | Tornado Warning | OUN | Beckham, Roger Mills | 27 min |
| Apr 15, 12:16 AM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Ellis, Harper, Major, Woods, Woodward | 59 min |
| Apr 15, 12:16 AM CDT | Tornado Warning | OUN | Ellis, Harper, Woodward | 29 min |
| Apr 15, 12:33 AM CDT | Tornado Warning | OUN | Custer, Dewey, Roger Mills | 42 min |
| Apr 15, 12:39 AM CDT | Severe Thunderstorm Warning | OUN | Beckham, Custer, Dewey, Ellis, Greer, Harmon and 5 more | 66 min |
| Apr 15, 12:42 AM CDT | Tornado Warning | OUN | Harper, Woods, Woodward | 33 min |
| Apr 15, 1:15 AM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Dewey, Grant, Major, Woods, Woodward | 60 min |
| Apr 15, 1:29 AM CDT | Special Weather Statement | OUN | Blaine, Caddo, Kingfisher, Tillman | 61 min |
| Apr 15, 1:36 AM CDT | Severe Thunderstorm Warning | OUN | Blaine, Caddo, Canadian, Comanche, Custer, Dewey and 3 more | 54 min |
| Apr 15, 1:41 AM CDT | Severe Thunderstorm Warning | OUN | Comanche, Jackson, Kiowa, Tillman | 64 min |
| Apr 15, 2:34 AM CDT | Severe Thunderstorm Warning | OUN | Blaine, Caddo, Canadian, Comanche, Grady, Kingfisher and 3 more | 56 min |
| Apr 15, 2:37 AM CDT | Special Weather Statement | OUN | Lincoln, McClain, Payne, Pottawatomie | 68 min |
| Apr 15, 2:44 AM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Grady, Jefferson, Stephens, Tillman | 45 min |
| Apr 15, 3:06 AM CDT | Special Weather Statement | OUN | Kay, Noble | 24 min |
| Apr 15, 3:36 AM CDT | Special Weather Statement | OUN | Grady, Kay, Logan, McClain, Noble, Oklahoma and 1 more | 54 min |
| Apr 15, 3:40 AM CDT | Special Weather Statement | OUN | Jefferson, Stephens | 65 min |
| Apr 15, 4:35 AM CDT | Special Weather Statement | OUN | Cleveland, Garvin, Lincoln, Payne, Pottawatomie, Seminole | 55 min |
| Apr 15, 4:37 AM CDT | Special Weather Statement | OUN | Carter, Garvin, Johnston, Love, Marshall, Murray and 1 more | 53 min |
| Apr 15, 5:36 AM CDT | Special Weather Statement | OUN | Coal, Hughes, Pontotoc, Seminole | 54 min |
| Apr 15, 6:52 AM CDT | Special Weather Statement | OUN | Atoka, Coal, Hughes | 23 min |
| Apr 15, 7:53 AM CDT | Severe Thunderstorm Warning | OUN | Bryan | 52 min |
| Apr 15, 8:27 AM CDT | Severe Thunderstorm Warning | OUN | Atoka | 48 min |
| Apr 15, 9:03 AM CDT | Special Weather Statement | OUN | Bryan | 27 min |
| Apr 15, 9:34 AM CDT | Special Weather Statement | OUN | Atoka | 26 min |
| Apr 15, 11:00 AM CDT | Wind Advisory | OUN | Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 11 more | 6 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.