Alert archive / Oklahoma / Tornado Warnings in 2015

Tornado Warning 18, NWS Tulsa, OK

April 3, 2015Craig County, Ottawa County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 3, 2015, 2:08 AM CDT for Craig County, Ottawa 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 3, 2015, 2:08 AM CDT (07:08 UTC)
Expired: Apr 3, 2015, 2:45 AM CDT
In force: 37 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Craig County, OK, Ottawa County, OK

The radar

The Tulsa radar (KINX), 96 km from the middle of the area, began a volume at 07:10 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 3, 2:42 AM CDT	TSTM WND DMG	8 N Welch, OK	ROOF TORN OFF HOUSE ON JUST SOUTH OF KS / OK BORDER ON HIGHWAY 59. MEASURED WIND GUST 72 MPH.

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
Apr 3, 1:52 AM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.1 hours before the alert went out and 104 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

157 
WFUS54 KTSA 030708
TORTSA
OKC035-115-030745-
/O.NEW.KTSA.TO.W.0018.150403T0708Z-150403T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
208 AM CDT FRI APR 3 2015

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CRAIG COUNTY IN NORTHEAST OKLAHOMA...
  OTTAWA COUNTY IN NORTHEAST OKLAHOMA...

* UNTIL 245 AM CDT

* AT 206 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR EDNA...AND MOVING EAST AT 50 MPH.

  HAZARD...TORNADO.

  SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD NEAR EDNA.

  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...COMMERCE...CARDIN...
  PICHER...MIAMI...TWIN BRIDGES STATE PARK...QUAPAW...PEORIA...OTTAWA
  AND WYANDOTTE.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 304 AND 324.

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 3673 9470 3699 9541 3700 9540 3700 9462
TIME...MOT...LOC 0708Z 289DEG 42KT 3704 9533

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

LACY

2 follow-up statements

093 
WWUS54 KTSA 030721
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
221 AM CDT FRI APR 3 2015

OKC035-115-030745-
/O.CON.KTSA.TO.W.0018.000000T0000Z-150403T0745Z/
CRAIG OK-OTTAWA OK-
221 AM CDT FRI APR 3 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR OTTAWA AND NORTHEASTERN
CRAIG COUNTIES UNTIL 245 AM CDT...

AT 219 AM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR CHETOPA...AND
MOVING EAST AT 50 MPH.

HAZARD...DAMAGING TORNADO AND BASEBALL SIZE HAIL.

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.

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...COMMERCE...CARDIN...PICHER...
  MIAMI...QUAPAW...TWIN BRIDGES STATE PARK...PEORIA...OTTAWA AND
  WYANDOTTE

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 304 AND 324.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3696 9525 3700 9529 3700 9462 3673 9470
TIME...MOT...LOC 0720Z 289DEG 42KT 3702 9511

TORNADO...OBSERVED
HAIL...2.75IN

$$

LACY

596 
WWUS54 KTSA 030733
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
233 AM CDT FRI APR 3 2015

OKC035-030743-
/O.CAN.KTSA.TO.W.0018.000000T0000Z-150403T0745Z/
CRAIG OK-
233 AM CDT FRI APR 3 2015

...THE TORNADO WARNING FOR NORTHEASTERN CRAIG COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3700 9462 3673 9470 3686 9500 3694 9500
      3695 9500 3697 9504 3699 9504 3700 9501
TIME...MOT...LOC 0733Z 289DEG 42KT 3697 9493

$$

OKC115-030745-
/O.CON.KTSA.TO.W.0018.000000T0000Z-150403T0745Z/
OTTAWA OK-
233 AM CDT FRI APR 3 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR OTTAWA COUNTY UNTIL 245 AM
CDT...

AT 230 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 7 MILES NORTHWEST OF COMMERCE...AND MOVING EAST AT 50
MPH.

HAZARD...TORNADO.

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...COMMERCE...CARDIN...PICHER...
  MIAMI...QUAPAW...TWIN BRIDGES STATE PARK...PEORIA...OTTAWA AND
  WYANDOTTE

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 304 AND 324.

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.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3700 9462 3673 9470 3686 9500 3694 9500
      3695 9500 3697 9504 3699 9504 3700 9501
TIME...MOT...LOC 0733Z 289DEG 42KT 3697 9493

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

LACY

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, 10:02 PM CDT	Tornado Warning	TSA	Craig, Delaware, Ottawa	43 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, 2:42 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, 2015 Every tornado warning in 2015 Tornadoes 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.