Alert archive / Oklahoma / Tornado Warnings in 2012
Tornado Warning 31, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Apr 14, 2012, 7:35 PM CDT for Alfalfa County, Woods County, Oklahoma. It was in force for 40 min. 4 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 14, 2012, 7:35 PM CDT (00:35 UTC)
- Expired
- Apr 14, 2012, 8:15 PM CDT
- In force
- 40 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
Counties Alfalfa County, OK, Woods County, OK
The radar
The Vance AFB radar (KVNX), 30 km from the middle of the area, began a volume at 00:37 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 14, 7:39 PM CDT | TORNADO | 5 S Hopeton, OK | |
| Apr 14, 7:41 PM CDT | TORNADO | Dacoma, OK | THIS TORNADO CONTINUED NORTHEAST AND LIFTED APPROXIMATELY 3 MILES WEST-NORTHWEST OF CHEROKEE. TOWARD THE END OF ITS LIFE CYCLE... A SECOND TORNADO DEVELOPED 2 MILES EAST. |
| Apr 14, 7:55 PM CDT | TORNADO | 4 W Cherokee, OK | THIS TORNADO OCCURRED SIMULTANEOUSLY WITH A TORNADO THAT WAS LOCATED TWO MILES WEST. THE TORNADO CONTINUED NORTHEAST AND LIFTED NEAR BYRON AND AMORITA. A CEMETARY WAS DAMAGED JUST WEST OF BYRON. |
| Apr 14, 8:11 PM CDT | TORNADO | 7 S Driftwood, OK |
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
Lamont, OK (KLMN), launched 00:00Z, 0.6 hours before the alert went out and 89 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
- 2195 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 335 m²/s²
- 0-3 km storm-relative helicity
- 436 m²/s²
- Significant tornado parameter
- 5.9
- Supercell composite
- 19.0
The text
As transmitted, in the capitals the NWS used until 2016.
513 WFUS54 KOUN 150035 TOROUN OKC003-151-150115- /O.NEW.KOUN.TO.W.0031.120415T0035Z-120415T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 735 PM CDT SAT APR 14 2012 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN WOODS COUNTY IN NORTHWESTERN OKLAHOMA... ALFALFA COUNTY IN NORTH CENTRAL OKLAHOMA... * UNTIL 815 PM CDT * AT 732 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A TORNADO 7 MILES SOUTHWEST OF DACOMA...MOVING NORTHEAST AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... CHEROKEE...CARMEN...DACOMA...LAMBERT...INGERSOLL... DRIFTWOOD AND HOPETON. 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. && LAT...LON 3693 9832 3661 9827 3655 9868 3668 9874 TIME...MOT...LOC 0032Z 229DEG 32KT 3661 9868 $$ 30
4 follow-up statements
028 WWUS54 KOUN 150046 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 746 PM CDT SAT APR 14 2012 OKC003-151-150115- /O.CON.KOUN.TO.W.0031.000000T0000Z-120415T0115Z/ WOODS OK-ALFALFA OK- 746 PM CDT SAT APR 14 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR SOUTHEASTERN WOODS AND ALFALFA COUNTIES... AT 741 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED POSSIBLY TWO TORNADOES. ONE CIRCULATION... PRODUCING A TORNADO... WAS LOCATED NEAR HOPETON. A NEW CIRCULATION WAS DEVELOPING NEAR DACOMA. BOTH OF THESE CIRCULATIONS WILL BE CAPABLE OF PRODUCING TORNADOES. THE STORM WAS MOVING NORTHEAST AT 40 MPH. LOCATIONS IMPACTED INCLUDE... CHEROKEE...DACOMA...LAMBERT...INGERSOLL...DRIFTWOOD AND HOPETON. PRECAUTIONARY/PREPAREDNESS ACTIONS... GET IN...GET DOWN AND COVER UP. TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY BUILDING. STAY AWAY FROM DOORS AND WINDOWS. && LAT...LON 3693 9832 3661 9827 3655 9868 3668 9874 TIME...MOT...LOC 0041Z 232DEG 35KT 3667 9856 $$ 30
758 WWUS54 KOUN 150050 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 750 PM CDT SAT APR 14 2012 OKC003-151-150115- /O.CON.KOUN.TO.W.0031.000000T0000Z-120415T0115Z/ WOODS OK-ALFALFA OK- 750 PM CDT SAT APR 14 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR SOUTHEASTERN WOODS AND ALFALFA COUNTIES... AT 746 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM SPOTTERS WERE TRACKING A TORNADO. THIS TORNADO LOCATED 4 MILES WEST OF LAMBERT...MOVING NORTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... CHEROKEE...DACOMA...LAMBERT...INGERSOLL...DRIFTWOOD AND HOPETON. 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. && LAT...LON 3693 9832 3661 9827 3655 9868 3668 9874 TIME...MOT...LOC 0046Z 229DEG 32KT 3670 9852 $$ 30
959 WWUS54 KOUN 150055 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 755 PM CDT SAT APR 14 2012 OKC151-150125- /O.CAN.KOUN.TO.W.0031.000000T0000Z-120415T0115Z/ WOODS OK- 755 PM CDT SAT APR 14 2012 ...THE TORNADO WARNING FOR SOUTHEASTERN WOODS COUNTY IS CANCELLED... THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. THE WARNING HAS BEEN CANCELLED. LAT...LON 3672 9829 3669 9852 3680 9854 3693 9832 TIME...MOT...LOC 0054Z 229DEG 31KT 3672 9849 $$ OKC003-150115- /O.CON.KOUN.TO.W.0031.000000T0000Z-120415T0115Z/ ALFALFA OK- 755 PM CDT SAT APR 14 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR NORTHWESTERN ALFALFA COUNTY... AT 751 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM SPOTTERS WERE TRACKING A TORNADO. THIS TORNADO LOCATED 8 MILES WEST OF CHEROKEE...MOVING NORTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... CHEROKEE...INGERSOLL AND DRIFTWOOD. 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. && LAT...LON 3672 9829 3669 9852 3680 9854 3693 9832 TIME...MOT...LOC 0051Z 229DEG 31KT 3672 9849 $$ 30
175 WWUS54 KOUN 150102 SVSOUN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 802 PM CDT SAT APR 14 2012 OKC003-150115- /O.CON.KOUN.TO.W.0031.000000T0000Z-120415T0115Z/ ALFALFA OK- 802 PM CDT SAT APR 14 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR NORTHWESTERN ALFALFA COUNTY... AT 800 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM SPOTTERS WERE TRACKING TWO TORNADOES. THIS TORNADO LOCATED 4 MILES SOUTHWEST OF INGERSOLL WITH ANOTHER TORNADO 2 MILES SOUTHWEST OF INGERSOLL...MOVING NORTHEAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... CHEROKEE...INGERSOLL AND DRIFTWOOD. PRECAUTIONARY/PREPAREDNESS ACTIONS... GET IN...GET DOWN AND COVER UP. TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY BUILDING. STAY AWAY FROM DOORS AND WINDOWS. && LAT...LON 3672 9829 3669 9852 3680 9854 3693 9832 TIME...MOT...LOC 0100Z 220DEG 27KT 3677 9844 $$ 30
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, 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, 12:00 AM CDT | Tornado Warning | OUN | Ellis, Harper, Woodward | 30 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.