Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 69, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 14, 2011, 6:55 PM CDT for 4 counties in Oklahoma. It was in force for 50 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 14, 2011, 6:55 PM CDT (23:55 UTC)
- Expired
- Apr 14, 2011, 7:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Craig County, OK, Mayes County, OK, Nowata County, OK, Rogers County, OK
The radar
The Tulsa radar (KINX), 41 km from the middle of the area, began a volume at 23:58 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, 6:58 PM CDT | TSTM WND GST 65 | 2 N Claremore, OK | WIND GUST ESTIMATED ABOUT 1 MILE NORTH OF ROGERS STATE UNIVERSITY |
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, 2:28 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.9 hours before the alert went out and 156 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
- 2043 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
825 WUUS54 KTSA 142355 SVRTSA OKC035-097-105-131-150045- /O.NEW.KTSA.SV.W.0069.110414T2355Z-110415T0045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 655 PM CDT THU APR 14 2011 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN CRAIG COUNTY IN NORTHEAST OKLAHOMA NORTHWESTERN MAYES COUNTY IN NORTHEAST OKLAHOMA SOUTHEASTERN NOWATA COUNTY IN NORTHEAST OKLAHOMA ROGERS COUNTY IN NORTHEAST OKLAHOMA * UNTIL 745 PM CDT * AT 654 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CLAREMORE... MOVING NORTHEAST AT 30 MPH. STORM HAZARDS INCLUDE... QUARTER SIZE HAIL... WIND GUSTS TO 60 MPH... * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... OOLOGAH...FOYIL...CHELSEA...NEW ALLUWE AND ADAIR. THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 244 AND 276. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH OF THIS STORM...BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 3683 9549 3643 9512 3621 9565 3641 9573 TIME...MOT...LOC 2355Z 227DEG 24KT 3633 9565 $$
4 follow-up statements
472 WWUS54 KTSA 150000 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 700 PM CDT THU APR 14 2011 OKC035-097-105-131-150045- /O.CON.KTSA.SV.W.0069.000000T0000Z-110415T0045Z/ ROGERS OK-CRAIG OK-NOWATA OK-MAYES OK- 700 PM CDT THU APR 14 2011 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR NORTHWESTERN MAYES...SOUTHEASTERN NOWATA...SOUTHWESTERN CRAIG AND ROGERS COUNTIES... AT 658 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CLAREMORE...MOVING NORTHEAST AT 35 MPH. INTENSE DOWNBURST WINDS HAVE OCCURRED NEAR CLAREMORE WITH THIS STORM. STORM HAZARDS INCLUDE... DESTRUCTIVE WIND GUSTS TO 80 MPH... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...FOYIL... BUSHYHEAD...CHELSEA...NEW ALLUWE AND ADAIR. THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 244 AND 276. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO ACT QUICKLY. PERSONS NEAR THE PATH OF THIS DANGEROUS STORM SHOULD PREPARE FOR DESTRUCTIVE STRAIGHT LINE WINDS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY. IF NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. && LAT...LON 3683 9549 3643 9512 3621 9565 3641 9573 TIME...MOT...LOC 0000Z 232DEG 28KT 3636 9558 $$
936 WWUS54 KTSA 150012 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 712 PM CDT THU APR 14 2011 OKC035-097-105-131-150045- /O.CON.KTSA.SV.W.0069.000000T0000Z-110415T0045Z/ ROGERS OK-CRAIG OK-NOWATA OK-MAYES OK- 712 PM CDT THU APR 14 2011 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR NORTHWESTERN MAYES...SOUTHEASTERN NOWATA...SOUTHWESTERN CRAIG AND EASTERN ROGERS COUNTIES... AT 707 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR FOYIL...MOVING NORTHEAST AT 30 MPH. THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS TO 70 MPH. STORM HAZARDS INCLUDE... DAMAGING WIND GUSTS TO 70 MPH... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... BUSHYHEAD...CHELSEA...NEW ALLUWE AND ADAIR. THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 248 AND 276. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO ACT QUICKLY. THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS. SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. MOBILE HOMES AND HIGH PROFILE VEHICLES ARE ESPECIALLY SUSCEPTIBLE TO HIGH WINDS AND MAY BE OVERTURNED. && LAT...LON 3642 9567 3674 9541 3643 9512 3623 9560 TIME...MOT...LOC 0012Z 232DEG 28KT 3640 9550 $$
530
WWUS54 KTSA 150033
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
733 PM CDT THU APR 14 2011
OKC105-150043-
/O.CAN.KTSA.SV.W.0069.000000T0000Z-110415T0045Z/
NOWATA OK-
733 PM CDT THU APR 14 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN NOWATA COUNTY IS
CANCELLED...
LAT...LON 3643 9512 3630 9544 3646 9551 3660 9545
3660 9543 3664 9543 3672 9539
TIME...MOT...LOC 0033Z 232DEG 28KT 3646 9536
$$
OKC035-097-131-150045-
/O.CON.KTSA.SV.W.0069.000000T0000Z-110415T0045Z/
ROGERS OK-CRAIG OK-MAYES OK-
733 PM CDT THU APR 14 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
NORTHWESTERN MAYES...SOUTHWESTERN CRAIG AND NORTHEASTERN ROGERS
COUNTIES...
AT 729 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES EAST OF
BUSHYHEAD...MOVING NORTHEAST AT 30 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...ADAIR.
THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 258 AND 276.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.
&&
LAT...LON 3643 9512 3630 9544 3646 9551 3660 9545
3660 9543 3664 9543 3672 9539
TIME...MOT...LOC 0033Z 232DEG 28KT 3646 9536
$$180
WWUS54 KTSA 150041
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
741 PM CDT THU APR 14 2011
OKC035-097-131-150051-
/O.EXP.KTSA.SV.W.0069.000000T0000Z-110415T0045Z/
ROGERS OK-CRAIG OK-MAYES OK-
741 PM CDT THU APR 14 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MAYES...
SOUTHWESTERN CRAIG AND NORTHEASTERN ROGERS COUNTIES EXPIRES AT 745 PM
CDT...
THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.
GUSTY WINDS AND HEAVY RAIN WILL STILL BE POSSIBLE WITH THIS STORM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM.
LAT...LON 3643 9512 3630 9544 3646 9551 3660 9545
3660 9543 3664 9543 3672 9539
TIME...MOT...LOC 0041Z 232DEG 28KT 3648 9529
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 3:12 PM CDT | Special Weather Statement | TSA | Pawnee | 33 min |
| Apr 14, 3:21 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 54 min |
| Apr 14, 3:37 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 53 min |
| Apr 14, 4:09 PM CDT | Tornado Warning | TSA | Osage | 36 min |
| Apr 14, 4:13 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 62 min |
| Apr 14, 4:27 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 48 min |
| Apr 14, 4:27 PM CDT | Tornado Warning | TSA | Osage, Pawnee | 33 min |
| Apr 14, 4:37 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 38 min |
| Apr 14, 4:41 PM CDT | Tornado Warning | TSA | Osage | 34 min |
| Apr 14, 4:48 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 57 min |
| Apr 14, 4:54 PM CDT | Tornado Warning | TSA | Osage | 36 min |
| Apr 14, 4:57 PM CDT | Tornado Warning | TSA | Creek, Okmulgee | 33 min |
| Apr 14, 5:08 PM CDT | Tornado Warning | TSA | Osage | 23 min |
| Apr 14, 5:16 PM CDT | Tornado Warning | TSA | Osage, Washington | 44 min |
| Apr 14, 5:23 PM CDT | Tornado Warning | TSA | Creek, Okfuskee | 52 min |
| Apr 14, 5:29 PM CDT | Tornado Warning | TSA | Creek, Tulsa | 46 min |
| Apr 14, 5:32 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee, Tulsa, Washington | 13 min |
| Apr 14, 5:46 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 29 min |
| Apr 14, 5:51 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 54 min |
| Apr 14, 5:51 PM CDT | Tornado Warning | TSA | Nowata, Washington | 39 min |
| Apr 14, 6:09 PM CDT | Tornado Warning | TSA | Rogers, Tulsa, Wagoner | 51 min |
| Apr 14, 6:09 PM CDT | Tornado Warning | TSA | Creek, Okfuskee, Okmulgee | 51 min |
| Apr 14, 6:12 PM CDT | Tornado Warning | TSA | Okfuskee, Okmulgee | 34 min |
| Apr 14, 6:17 PM CDT | Tornado Warning | TSA | Pittsburg | 43 min |
| Apr 14, 6:23 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Tulsa | 52 min |
| Apr 14, 6:41 PM CDT | Special Weather Statement | TSA | LeFlore | 49 min |
| Apr 14, 6:48 PM CDT | Special Weather Statement | TSA | Rogers | 42 min |
| Apr 14, 6:57 PM CDT | Special Weather Statement | TSA | Craig | 48 min |
| Apr 14, 6:59 PM CDT | Tornado Warning | TSA | Latimer, Pittsburg | 61 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2011Every severe thunderstorm warning in 2011
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.