Alert archive / Oklahoma / Tornado Warnings in 2012
Tornado Warning 18, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 30, 2012, 8:53 PM CDT for Craig County, Nowata County, Oklahoma. It was in force for 37 min. 1 report 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 30, 2012, 8:53 PM CDT (01:53 UTC)
- Expired
- Apr 30, 2012, 9:30 PM CDT
- In force
- 37 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Craig County, OK, Nowata County, OK
The radar
The Tulsa radar (KINX), 76 km from the middle of the area, began a volume at 01:56 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 30, 8:59 PM CDT | TORNADO | 8 E Delaware, OK | DAMAGE SURVEY FOUND 1.5 MILE LONG TORNADO DAMAGE PATH OF A FEW SNAPPED HARDWOOD TREE TRUNKS...NUMEROUS SNAPPED BRANCHES...AND A DAMAGED POLE BARN. TORNADO WAS RATED EF1 WITH MAXIMUM WIND OF 95 TO 105 MPH AND WAS UP TO 200 YARDS WIDE AT TIMES. IT DISSIPATED AT |
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 30, 7:30 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.9 hours before the alert went out and 146 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
- 202 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1176 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
185 WFUS54 KTSA 010153 TORTSA OKC035-105-010230- /O.NEW.KTSA.TO.W.0018.120501T0153Z-120501T0230Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TULSA OK 853 PM CDT MON APR 30 2012 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN CRAIG COUNTY IN NORTHEAST OKLAHOMA EASTERN NOWATA COUNTY IN NORTHEAST OKLAHOMA * UNTIL 930 PM CDT * AT 851 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 10 MILES WEST OF CENTRALIA...MOVING NORTHEAST AT 15 MPH. THIS STORM HAS A HISTORY OF PRODUCING BRIEF TORNADOES...AND MAY PRODUCE ANOTHER TORNADO AT ANY TIME. THE CIRCULATION HAS TIGHTENED UP OVER THE PAST 10 MINUTES. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... CENTRALIA AND CENTRAILIA. THIS TORNADO WARNING REPLACES THE PREVIOUS WARNINGS IN EFFECT FOR NOWATA COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS! IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING HAIL TENNIS BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. IF NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AWAY FROM WINDOWS. && LAT...LON 3699 9534 3673 9533 3673 9555 3683 9562 TIME...MOT...LOC 0152Z 240DEG 15KT 3678 9554 $$
2 follow-up statements
334 WWUS54 KTSA 010204 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 904 PM CDT MON APR 30 2012 OKC035-105-010230- /O.CON.KTSA.TO.W.0018.000000T0000Z-120501T0230Z/ CRAIG OK-NOWATA OK- 904 PM CDT MON APR 30 2012 ...TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR EASTERN NOWATA AND NORTHWESTERN CRAIG COUNTIES... AT 900 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 8 MILES WEST OF CENTRALIA...MOVING NORTHEAST AT 15 MPH. THIS STORM HAS A HISTORY OF PRODUCING BRIEF TORNADOES...AND MAY PRODUCE ANOTHER TORNADO AT ANY TIME. SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CENTRALIA. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS! IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING TENNIS BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. IF NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AWAY FROM WINDOWS. && LAT...LON 3699 9534 3675 9533 3674 9550 3682 9554 TIME...MOT...LOC 0203Z 240DEG 15KT 3680 9549 $$
484 WWUS54 KTSA 010223 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 923 PM CDT MON APR 30 2012 OKC105-010233- /O.CAN.KTSA.TO.W.0018.000000T0000Z-120501T0230Z/ NOWATA OK- 923 PM CDT MON APR 30 2012 ...THE TORNADO WARNING FOR EASTERN NOWATA COUNTY IS CANCELLED... LAT...LON 3678 9543 3687 9543 3695 9534 3678 9533 TIME...MOT...LOC 0223Z 240DEG 15KT 3684 9540 $$ OKC035-010230- /O.CON.KTSA.TO.W.0018.000000T0000Z-120501T0230Z/ CRAIG OK- 923 PM CDT MON APR 30 2012 ...TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR WESTERN CRAIG COUNTY... AT 920 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED NEAR CENTRALIA...MOVING NORTHEAST AT 15 MPH. THIS STORM HAS HAD A HISTORY OF PRODUCING BRIEF TORNADOES...AND MAY PRODUCE ANOTHER TORNADO AT ANY TIME. SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CENTRALIA. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. IF NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AWAY FROM WINDOWS. NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS...TAKE COVER NOW! IF YOU WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE! && LAT...LON 3678 9543 3687 9543 3695 9534 3678 9533 TIME...MOT...LOC 0223Z 240DEG 15KT 3684 9540 $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 7:03 PM CDT | Special Weather Statement | TSA | Nowata | 27 min |
| Apr 30, 7:08 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 52 min |
| Apr 30, 7:18 PM CDT | Special Weather Statement | TSA | Muskogee | 42 min |
| Apr 30, 7:54 PM CDT | Severe Thunderstorm Warning | TSA | Nowata | 66 min |
| Apr 30, 8:02 PM CDT | Tornado Warning | TSA | Nowata | 43 min |
| Apr 30, 8:21 PM CDT | Tornado Warning | TSA | Nowata | 39 min |
| Apr 30, 8:37 PM CDT | Tornado Warning | TSA | Nowata | 23 min |
| Apr 30, 8:58 PM CDT | Flash Flood Warning | TSA | Craig, Nowata | 3 hr |
| Apr 30, 9:01 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 44 min |
| Apr 30, 9:08 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata | 67 min |
| Apr 30, 9:29 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 15 min |
| Apr 30, 9:43 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata | 62 min |
| Apr 30, 9:58 PM CDT | Tornado Warning | TSA | Craig | 32 min |
| Apr 30, 10:28 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 62 min |
| Apr 30, 10:34 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 71 min |
| Apr 30, 11:00 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 60 min |
| Apr 30, 11:03 PM CDT | Tornado Warning | TSA | Osage, Pawnee | 42 min |
| Apr 30, 11:11 PM CDT | Flash Flood Warning | TSA | Osage, Pawnee | 4 hr |
| Apr 30, 11:23 PM CDT | Tornado Warning | TSA | Osage, Pawnee | 37 min |
| Apr 30, 11:42 PM CDT | Special Weather Statement | TSA | Creek | 48 min |
| Apr 30, 11:42 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 63 min |
| Apr 30, 11:51 PM CDT | Flash Flood Warning | TSA | Craig, Nowata | 3 hr |
| Apr 30, 11:58 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 32 min |
| May 1, 12:19 AM CDT | Severe Thunderstorm Warning | TSA | Nowata, Osage, Rogers, Tulsa, Washington | 56 min |
| May 1, 12:26 AM CDT | Special Weather Statement | TSA | Tulsa | 49 min |
| May 1, 12:47 AM CDT | Tornado Warning | TSA | Nowata | 9 min |
| May 1, 12:49 AM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata, Washington | 56 min |
| May 1, 12:56 AM CDT | Special Weather Statement | TSA | Okfuskee | 49 min |
| May 1, 12:59 AM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Mayes, Nowata, Ottawa, Rogers | 76 min |
| May 1, 1:17 AM CDT | Severe Thunderstorm Warning | TSA | Mayes, Muskogee, Okmulgee, Rogers, Tulsa, Wagoner | 58 min |
| May 1, 1:38 AM CDT | Special Weather Statement | TSA | Okfuskee, Okmulgee | 37 min |
| May 1, 1:52 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Delaware, Mayes | 53 min |
| May 1, 1:53 AM CDT | Flash Flood Warning | TSA | Craig, Nowata, Ottawa, Rogers | 5 hr |
| May 1, 2:10 AM CDT | Special Weather Statement | TSA | Cherokee, McIntosh, Muskogee | 50 min |
| May 1, 2:21 AM CDT | Special Weather Statement | TSA | Pittsburg | 39 min |
| May 1, 2:30 AM CDT | Special Weather Statement | TSA | Creek, Tulsa, Wagoner | 45 min |
| May 1, 2:33 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Tulsa | 27 min |
| May 1, 2:56 AM CDT | Special Weather Statement | TSA | Adair | 49 min |
| May 1, 3:02 AM CDT | Special Weather Statement | TSA | Haskell, Sequoyah | 43 min |
| May 1, 3:28 AM CDT | Severe Thunderstorm Warning | TSA | Adair | 47 min |
| May 1, 3:30 AM CDT | Special Weather Statement | TSA | Latimer, LeFlore | 45 min |
| May 1, 6:35 AM CDT | Areal Flood Warning | TSA | Craig, Nowata, Ottawa | 10 hr |
| May 1, 8:33 AM CDT | River Flood Warning | TSA | Ottawa | 25 hr |
| May 1, 4:28 PM CDT | Areal Flood Warning | TSA | Craig, Nowata, Osage, Ottawa, Washington | 24 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.