Alert archive / Oklahoma / Tornado Warnings in 2016

Tornado Warning 31, NWS Tulsa, OK

May 9, 2016Pawnee County, Oklahoma

NWS Tulsa, OK issued this tornado warning at May 9, 2016, 6:28 PM CDT for Pawnee County, Oklahoma. It was in force for 32 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
May 9, 2016, 6:28 PM CDT (23:28 UTC)
Expired
May 9, 2016, 7:00 PM CDT
In force
32 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

County Pawnee County, OK

The radar

The Norman radar (KTLX), 114 km from the middle of the area, began a volume at 23:30 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
May 9, 6:46 PM CDTHAIL 1.75Pawnee, OKNICKEL TO GOLF BALL SIZE HAIL. TIME IS RADAR ESTIMATED.

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
May 9, 2:07 PM CDTSevere Thunderstorm WatchSPC10 hr
May 9, 2:36 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.5 hours before the alert went out and 130 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, Norman, OK at 12:00Z on 2016-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 686 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, Norman, OK at 12:00Z on 2016-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939587897117Sfc1 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
686 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
620 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
336 m²/s²
Significant tornado parameter
0.5
Supercell composite
6.0

Open this sounding in Storm Lab

The text

As transmitted.

930 
WFUS54 KTSA 092328
TORTSA
OKC117-100000-
/O.NEW.KTSA.TO.W.0031.160509T2328Z-160510T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
628 PM CDT MON MAY 9 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN PAWNEE COUNTY IN NORTHEASTERN OKLAHOMA...

* UNTIL 700 PM CDT
    
* AT 628 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED NEAR MORRISON...MOVING EAST AT 30 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...
  PAWNEE...                         

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER
AND PROTECT YOURSELF FROM FLYING DEBRIS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
TULSA.

&&

LAT...LON 3640 9678 3622 9674 3623 9682 3624 9682
      3625 9684 3625 9692 3633 9693 3633 9696
TIME...MOT...LOC 2328Z 251DEG 26KT 3628 9697 

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

$$
1 follow-up statement
163 
WWUS54 KTSA 092339
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
639 PM CDT MON MAY 9 2016

OKC117-100000-
/O.CON.KTSA.TO.W.0031.000000T0000Z-160510T0000Z/
PAWNEE OK-
639 PM CDT MON MAY 9 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHWESTERN PAWNEE COUNTY...
    
AT 639 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 4 MILES SOUTHWEST OF PAWNEE...MOVING EAST AT 30 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...
PAWNEE...                         

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 3640 9678 3622 9674 3623 9682 3624 9682
      3625 9684 3625 9692 3633 9693 3633 9696
TIME...MOT...LOC 2339Z 251DEG 26KT 3631 9687 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 9:30 PM CDTSpecial Weather StatementTSAOkfuskee30 min
May 8, 11:48 PM CDTSpecial Weather StatementTSAHaskell, McIntosh, Muskogee, Okmulgee27 min
May 9, 12:08 AM CDTSpecial Weather StatementTSACherokee, Haskell, Mayes, Muskogee, Sequoyah, Wagoner52 min
May 9, 6:07 PM CDTSevere Thunderstorm WarningTSAPawnee23 min
May 9, 6:12 PM CDTTornado WarningTSAChoctaw48 min
May 9, 6:32 PM CDTSevere Thunderstorm WarningTSAPawnee28 min
May 9, 6:42 PM CDTSpecial Weather StatementTSAOsage48 min
May 9, 6:45 PM CDTSpecial Weather StatementTSAPushmataha45 min
May 9, 6:45 PM CDTTornado WarningTSAPawnee19 min
May 9, 6:47 PM CDTSpecial Weather StatementTSALatimer43 min
May 9, 6:52 PM CDTSevere Thunderstorm WarningTSAPawnee38 min
May 9, 6:53 PM CDTTornado Warning Tornado observedTSAChoctaw52 min

Nearby

Tornado Warnings in Oklahoma, 2016Every tornado warning in 2016Tornadoes in 2016

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.