Alert archive / Oklahoma / Tornado Warnings in 2014

Tornado Warning 9, NWS Tulsa, OK

October 1, 2014Nowata County, Osage County, Washington County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Oct 1, 2014, 2:40 PM CDT for Nowata County, Osage County, Washington County, Oklahoma. It was in force for 50 min. 2 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
Oct 1, 2014, 2:40 PM CDT (19:40 UTC)
Expired
Oct 1, 2014, 3:30 PM CDT
In force
50 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Nowata County, OK, Osage County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 87 km from the middle of the area, began a volume at 19:44 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

TimeReportWhereRemark
Oct 1, 2:45 PM CDTHAIL 1.75Copan, OKREPORTED ON WASHINGTON COUNTY EMERGENCY MANAGEMENT SOCIAL MEDIA ACCOUNT.
Oct 1, 2:50 PM CDTTSTM WND DMG3 Ne Dewey, OKTREE LIMBS DOWN NEAR THE INTERSECTION OF 3900 AND 1000.

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.

IssuedProductOfficeLasted
Oct 1, 2:40 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.7 hours before the alert went out and 181 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2014-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 192 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2014-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
192 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1166 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
192 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

459 
WFUS54 KTSA 011940
TORTSA
OKC105-113-147-012030-
/O.NEW.KTSA.TO.W.0009.141001T1940Z-141001T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
240 PM CDT WED OCT 1 2014

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN NOWATA COUNTY IN NORTHEAST OKLAHOMA...
  NORTHEASTERN OSAGE COUNTY IN NORTHEAST OKLAHOMA...
  WASHINGTON COUNTY IN NORTHEAST OKLAHOMA...

* UNTIL 330 PM CDT

* AT 239 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 5 MILES SOUTHWEST OF COPAN...AND MOVING
  NORTHEAST AT 25 MPH.

  HAZARD...TORNADO AND QUARTER 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...HULAH...COPAN AND WANN.

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 3692 9561 3679 9600 3689 9612 3701 9597
      3700 9571
TIME...MOT...LOC 1940Z 238DEG 22KT 3686 9600

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$
3 follow-up statements
204 
WWUS54 KTSA 011945
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
245 PM CDT WED OCT 1 2014

OKC105-113-147-012030-
/O.CON.KTSA.TO.W.0009.000000T0000Z-141001T2030Z/
NOWATA OK-OSAGE OK-WASHINGTON OK-
245 PM CDT WED OCT 1 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR WASHINGTON...NORTHEASTERN
OSAGE AND NORTHWESTERN NOWATA COUNTIES IN NORTHEAST OKLAHOMA UNTIL
330 PM CDT...

AT 244 PM CDT...A SEVERE THUNDERSTORM WITH STRONG LOW LEVEL ROTATION
THAT COULD PRODUCE A TORNADO AT ANY TIME  WAS LOCATED NEAR COPAN...
AND MOVING NORTHEAST 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...COPAN AND WANN

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 3692 9561 3680 9596 3690 9605 3701 9597
      3700 9571
TIME...MOT...LOC 1945Z 238DEG 22KT 3686 9595

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$
284 
WWUS54 KTSA 011958
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
258 PM CDT WED OCT 1 2014

OKC113-012008-
/O.CAN.KTSA.TO.W.0009.000000T0000Z-141001T2030Z/
OSAGE OK-
258 PM CDT WED OCT 1 2014

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

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

LAT...LON 3691 9595 3700 9593 3700 9571 3692 9561
      3683 9588
TIME...MOT...LOC 1958Z 240DEG 18KT 3691 9585

$$

OKC105-147-012030-
/O.CON.KTSA.TO.W.0009.000000T0000Z-141001T2030Z/
NOWATA OK-WASHINGTON OK-
258 PM CDT WED OCT 1 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR WASHINGTON AND
NORTHWESTERN NOWATA COUNTIES IN NORTHEAST OKLAHOMA UNTIL 330 PM
CDT...

AT 256 PM CDT...A SEVERE THUNDERSTORM WITH STRONG LOW LEVEL ROTATION
THAT COULD PRODUCE A TORNADO AT ANY TIME  WAS LOCATED NEAR WANN...AND
MOVING NORTHEAST AT 20 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...WANN

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 3691 9595 3700 9593 3700 9571 3692 9561
      3683 9588
TIME...MOT...LOC 1958Z 240DEG 18KT 3691 9585

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$
397 
WWUS54 KTSA 012012
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
312 PM CDT WED OCT 1 2014

OKC147-012022-
/O.CAN.KTSA.TO.W.0009.000000T0000Z-141001T2030Z/
WASHINGTON OK-
312 PM CDT WED OCT 1 2014

...THE TORNADO WARNING FOR WASHINGTON COUNTY IN NORTHEAST OKLAHOMA IS
CANCELLED...

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

LAT...LON 3694 9579 3700 9579 3700 9571 3692 9561
      3687 9577
TIME...MOT...LOC 2012Z 245DEG 16KT 3694 9571

$$

OKC105-012030-
/O.CON.KTSA.TO.W.0009.000000T0000Z-141001T2030Z/
NOWATA OK-
312 PM CDT WED OCT 1 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL NOWATA COUNTY
UNTIL 330 PM CDT...

AT 310 PM CDT...A SEVERE THUNDERSTORM WITH STRONG LOW LEVEL ROTATION
THAT COULD PRODUCE A TORNADO AT ANY TIME  WAS LOCATED NEAR WANN...AND
MOVING NORTHEAST AT 20 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.

* THE STORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY..

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 3694 9579 3700 9579 3700 9571 3692 9561
      3687 9577
TIME...MOT...LOC 2012Z 245DEG 16KT 3694 9571

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 1, 2:02 PM CDTSevere Thunderstorm WarningTSANowata, Osage, Washington43 min
Oct 1, 3:17 PM CDTSevere Thunderstorm WarningTSANowata29 min

Nearby

Tornado Warnings in Oklahoma, 2014Every tornado warning in 2014Tornadoes in 2014

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.