Alert archive / Oklahoma / Tornado Warnings in 2015
Tornado Warning 17, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 2, 2015, 10:02 PM CDT for Craig County, Delaware County, Ottawa County, Oklahoma. It was in force for 43 min. 3 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 2, 2015, 10:02 PM CDT (03:02 UTC)
- Expired
- Apr 2, 2015, 10:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.75 in
Counties Craig County, OK, Delaware County, OK, Ottawa County, OK
The radar
The Tulsa radar (KINX), 87 km from the middle of the area, began a volume at 03:04 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 2, 10:05 PM CDT | TSTM WND DMG | 3 Wsw Afton, OK | 2 TRACTOR TRAILER TRUCKS BLOWN OVER ON I-44 AT 4470 ROAD. SHEET METAL ALSO IN THE MEDIAN. POSSIBLE TORNADO. TIME ESTIMATED BY RADAR. |
| Apr 2, 10:10 PM CDT | TORNADO | 1 Sw Afton, OK | STORM CHASERS REPORTED POWER FLASHES NEAR A FUNNEL CLOUD. RADAR DATA STRONGLY SUPPORTED A TORNADO AS WELL. |
| Apr 2, 10:38 PM CDT | HAIL 1 | Afton, 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 2, 7:02 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 3.0 hours before the alert went out and 97 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
- 1838 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1146 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
760
WFUS54 KTSA 030302
TORTSA
OKC035-041-115-030345-
/O.NEW.KTSA.TO.W.0017.150403T0302Z-150403T0345Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
1002 PM CDT THU APR 2 2015
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* TORNADO WARNING FOR...
EAST CENTRAL CRAIG COUNTY IN NORTHEAST OKLAHOMA...
NORTHWESTERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA...
SOUTHERN OTTAWA COUNTY IN NORTHEAST OKLAHOMA...
* UNTIL 1045 PM CDT
* AT 959 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 6 MILES NORTHEAST OF VINITA...AND MOVING EAST
AT 25 MPH.
HAZARD...TORNADO AND GOLF BALL SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
* LOCATIONS IN OR NEAR THE PATH INCLUDE...AFTON...BERNICE...BERNICE
STATE PARK...FAIRLAND...HONEY CREEK STATE PARK...GROVE AND
WYANDOTTE.
THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 286 AND 302.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. GO TO A DESIGNED SHELTER SUCH AS A SAFE ROOM OR STORM
CELLAR IF AVAILABLE. OTHERWISE...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF SEEKING SHELTER
IN A BASEMENT...BE SURE TO GET BENEATH SOMETHING STURDY. IF IN A
MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3680 9467 3652 9471 3667 9517 3678 9511
TIME...MOT...LOC 0302Z 276DEG 24KT 3670 9506
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$4 follow-up statements
631
WWUS54 KTSA 030307
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1007 PM CDT THU APR 2 2015
OKC035-041-115-030345-
/O.CON.KTSA.TO.W.0017.000000T0000Z-150403T0345Z/
CRAIG OK-DELAWARE OK-OTTAWA OK-
1007 PM CDT THU APR 2 2015
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN OTTAWA...
NORTHWESTERN DELAWARE AND EAST CENTRAL CRAIG COUNTIES UNTIL 1045 PM
CDT...
AT 1004 PM CDT...A SEVERE THUNDERSTORM WITH STRONG LOW LEVEL ROTATION
THAT COULD PRODUCE AN EXTREMELY DANGEROUS TORNADO WAS LOCATED NEAR
AFTON...AND MOVING EAST AT 30 MPH.
THIS IS A PARTICULARLY DANGEROUS SITUATION.
HAZARD...DAMAGING TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...YOU ARE IN A LIFE THREATENING SITUATION. FLYING DEBRIS WILL
BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES WILL
BE DESTROYED. CONSIDERABLE DAMAGE TO HOMES...BUSINESSES AND
VEHICLES IS LIKELY AND COMPLETE DESTRUCTION POSSIBLE.
LOCATIONS IN OR NEAR THE PATH INCLUDE...AFTON...BERNICE...FAIRLAND...
BERNICE STATE PARK...WYANDOTTE...HONEY CREEK STATE PARK AND GROVE
THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 286 AND 302.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...AN EXTREMELY DANGEROUS AND POTENTIALLY DEADLY TORNADO IS
DEVELOPING. TO PROTECT YOUR LIFE...TAKE COVER NOW. GO TO A DESIGNED
SHELTER SUCH AS A SAFE ROOM OR STORM CELLAR IF AVAILABLE.
OTHERWISE...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF SEEKING SHELTER IN A BASEMENT...BE SURE
TO GET BENEATH SOMETHING STURDY. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3680 9467 3652 9471 3667 9517 3678 9511
TIME...MOT...LOC 0307Z 290DEG 27KT 3668 9501
TORNADO...RADAR INDICATED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.75IN
$$267
WWUS54 KTSA 030317
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1017 PM CDT THU APR 2 2015
OKC035-030326-
/O.CAN.KTSA.TO.W.0017.000000T0000Z-150403T0345Z/
CRAIG OK-
1017 PM CDT THU APR 2 2015
...THE TORNADO WARNING FOR EAST CENTRAL CRAIG COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3680 9467 3653 9471 3652 9472 3662 9500
3678 9500
TIME...MOT...LOC 0316Z 284DEG 31KT 3667 9492
$$
OKC041-115-030345-
/O.CON.KTSA.TO.W.0017.000000T0000Z-150403T0345Z/
DELAWARE OK-OTTAWA OK-
1017 PM CDT THU APR 2 2015
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN OTTAWA AND
NORTHWESTERN DELAWARE COUNTIES UNTIL 1045 PM CDT...
AT 1015 PM CDT...A SEVERE THUNDERSTORM WITH STRONG LOW LEVEL ROTATION
THAT COULD PRODUCE AN EXTREMELY DANGEROUS TORNADO WAS LOCATED NEAR
AFTON...AND MOVING EAST AT 35 MPH.
THIS IS A PARTICULARLY DANGEROUS SITUATION.
HAZARD...DAMAGING TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...YOU ARE IN A LIFE THREATENING SITUATION. FLYING DEBRIS WILL
BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES WILL
BE DESTROYED. CONSIDERABLE DAMAGE TO HOMES...BUSINESSES AND
VEHICLES IS LIKELY AND COMPLETE DESTRUCTION POSSIBLE.
LOCATIONS IN OR NEAR THE PATH INCLUDE...BERNICE...BERNICE STATE
PARK...FAIRLAND...WYANDOTTE...HONEY CREEK STATE PARK AND GROVE
THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 294 AND 302.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...AN EXTREMELY DANGEROUS AND POTENTIALLY DEADLY TORNADO IS
DEVELOPING. TO PROTECT YOUR LIFE...TAKE COVER NOW. GO TO A DESIGNED
SHELTER SUCH AS A SAFE ROOM OR STORM CELLAR IF AVAILABLE.
OTHERWISE...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF SEEKING SHELTER IN A BASEMENT...BE SURE
TO GET BENEATH SOMETHING STURDY. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3680 9467 3653 9471 3652 9472 3662 9500
3678 9500
TIME...MOT...LOC 0316Z 284DEG 31KT 3667 9492
TORNADO...RADAR INDICATED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.75IN
$$051
WWUS54 KTSA 030322
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1022 PM CDT THU APR 2 2015
OKC041-115-030345-
/O.CON.KTSA.TO.W.0017.000000T0000Z-150403T0345Z/
DELAWARE OK-OTTAWA OK-
1022 PM CDT THU APR 2 2015
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN OTTAWA AND NORTH
CENTRAL DELAWARE COUNTIES UNTIL 1045 PM CDT...
AT 1020 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR BERNICE STATE PARK...AND MOVING EAST AT 35 MPH.
HAZARD...TORNADO AND GOLF BALL SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
LOCATIONS IN OR NEAR THE PATH INCLUDE...WYANDOTTE...HONEY CREEK STATE
PARK AND GROVE
THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 299 AND 302.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. GO TO A DESIGNED SHELTER SUCH AS A SAFE ROOM OR STORM
CELLAR IF AVAILABLE. OTHERWISE...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF SEEKING SHELTER
IN A BASEMENT...BE SURE TO GET BENEATH SOMETHING STURDY. IF IN A
MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3661 9496 3679 9490 3680 9467 3653 9471
3652 9472
TIME...MOT...LOC 0322Z 283DEG 31KT 3665 9484
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$421
WWUS54 KTSA 030341
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1041 PM CDT THU APR 2 2015
OKC041-115-030350-
/O.EXP.KTSA.TO.W.0017.000000T0000Z-150403T0345Z/
DELAWARE OK-OTTAWA OK-
1041 PM CDT THU APR 2 2015
...THE TORNADO WARNING FOR SOUTHERN OTTAWA AND NORTH CENTRAL DELAWARE
COUNTIES WILL EXPIRE AT 1045 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA. HOWEVER...HAIL IS STILL POSSIBLE WITH THIS
THUNDERSTORM.
IN ADDITION...SEVERE THUNDERSTORMS MAY REDEVELOP...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL 2 AM.
LAT...LON 3661 9496 3679 9490 3680 9467 3653 9471
3652 9472
TIME...MOT...LOC 0340Z 283DEG 31KT 3661 9465
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 8:08 PM CDT | Special Weather Statement | TSA | Rogers | 52 min |
| Apr 2, 8:21 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Osage, Washington | 39 min |
| Apr 2, 8:24 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Mayes, Rogers | 51 min |
| Apr 2, 8:55 PM CDT | Special Weather Statement | TSA | Osage | 35 min |
| Apr 2, 8:58 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata | 47 min |
| Apr 2, 9:00 PM CDT | Special Weather Statement | TSA | Craig | 30 min |
| Apr 2, 9:03 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Mayes, Ottawa | 42 min |
| Apr 2, 9:09 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Osage, Washington | 21 min |
| Apr 2, 9:11 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Ottawa | 49 min |
| Apr 2, 9:18 PM CDT | Tornado Warning | TSA | Craig, Nowata | 27 min |
| Apr 2, 9:36 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 39 min |
| Apr 2, 9:41 PM CDT | Special Weather Statement | TSA | Delaware | 34 min |
| Apr 2, 9:44 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Ottawa | 61 min |
| Apr 2, 9:48 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 42 min |
| Apr 2, 10:01 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata | 44 min |
| Apr 2, 10:42 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Ottawa | 48 min |
| Apr 2, 10:43 PM CDT | Severe Thunderstorm Warning | TSA | Delaware, Ottawa | 17 min |
| Apr 2, 11:14 PM CDT | Severe Thunderstorm Warning | TSA | Delaware, Ottawa | 21 min |
| Apr 3, 2:08 AM CDT | Tornado Warning | TSA | Craig, Ottawa | 37 min |
| Apr 3, 2:42 AM CDT | Tornado Warning | TSA | Ottawa | 17 min |
| Apr 3, 6:15 AM CDT | Wind Advisory | TSA | Craig, Creek, Delaware, Mayes, Nowata, Ottawa and 5 more | 7 hr |
| Apr 3, 2:40 PM CDT | Frost Advisory | TSA | Adair, Cherokee, Craig, Creek, Delaware, McIntosh and 11 more | 18 hr |
Nearby
Tornado Warnings in Oklahoma, 2015Every tornado warning in 2015Tornadoes in 2015
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.