Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 238, NWS Tulsa, OK

October 5, 2016McIntosh County, Okfuskee County, Okmulgee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Oct 5, 2016, 1:28 AM CDT for McIntosh County, Okfuskee County, Okmulgee County, Oklahoma. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 5, 2016, 1:28 AM CDT (06:28 UTC)
Expired: Oct 5, 2016, 2:00 AM CDT
In force: 32 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties McIntosh County, OK, Okfuskee County, OK, Okmulgee County, OK

The radar

The Tulsa radar (KINX), 100 km from the middle of the area, began a volume at 06:27 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.5 hours before the alert went out and 125 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: 1817 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1034 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 235 m²/s²
0-3 km storm-relative helicity: 312 m²/s²
Significant tornado parameter: 2.9
Supercell composite: 14.8

Open this sounding in Storm Lab

The text

As transmitted.

400 
WUUS54 KTSA 050628
SVRTSA
OKC091-107-111-050700-
/O.NEW.KTSA.SV.W.0238.161005T0628Z-161005T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
128 AM CDT WED OCT 5 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTH CENTRAL OKMULGEE COUNTY IN NORTHEASTERN OKLAHOMA...
  WEST CENTRAL MCINTOSH COUNTY IN SOUTHEASTERN OKLAHOMA...

* UNTIL 200 AM CDT

* AT 128 AM CDT...TWO SEVERE THUNDERSTORMS WERE LOCATED 5 MILES
  SOUTHEAST OF BEARDEN AND 5 MILES SOUTH OF WELEETKA...MOVING
  NORTHEAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  HENRYETTA...                      WELEETKA...
  CLEARVIEW...                      PHAROAH...
  BRYANT...                         

THIS INCLUDES INTERSTATE 40 IN OKLAHOMA BETWEEN MILE MARKERS 227 AND
243.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3548 9611 3541 9577 3528 9591 3526 9598
      3529 9598 3529 9638
TIME...MOT...LOC 0628Z 244DEG 30KT 3529 9632 3526 9613 

HAIL...1.00IN
WIND...60MPH
 
$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 5, 12:31 AM CDT, 57 minutes earlier.

Area forecast discussion, Oct 5, 12:31 AM CDT, 57 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
1231 AM CDT WED OCT 5 2016

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
Mainly MVFR to VFR conditions can be expected through the period
with showers and thunderstorms affecting many of the TAF sites
during the overnight hours.

&&

.PREV DISCUSSION... /Issued 938 PM CDT TUE OCT 4 2016/

..UPDATE...

DISCUSSION...
Convection originating across central OK has begun to trend
downward as boundary layer begins to stabilize. However there
remains synoptic level forcing to the west and sufficient deep
layer shear remains in place to support strong to marginally
severe weather as convection continues to spread into NE OK.
Updated forecast will account for short term precip trends with
remainder of forecast on track.

&&

.TSA Watches/Warnings/Advisories...
OK...None.
AR...None.
&&

AVIATION...10

Hazardous weather outlook, Oct 4, 10:32 PM CDT, 2 hours 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1032 PM CDT TUE OCT 4 2016

ARZ001-002-010-011-019-020-029-OKZ049-053>076-051030-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
1032 PM CDT TUE OCT 4 2016

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...TONIGHT.

TORNADO.
	RISK...LIMITED.
	AREA...WEST OF HIGHWAY 75.
	ONSET...ONGOING...DIMINISHING AFTER MIDNIGHT.

SEVERE THUNDERSTORM.
	RISK...ELEVATED.
	AREA...PRIMARILY NORTHWEST OF A LINE FROM OKEMAH TO MIAMI.
	ONSET...ONGOING...DIMINISHING AFTER MIDNIGHT.

SIGNIFICANT WINDS.
	RISK...LIMITED.
	AREA...ALL EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING...SLOWLY WEAKENING THRU THE EVENING HOURS.

DISCUSSION...

AN ELEVATED SEVERE WEATHER RISK EXISTS THIS EVENING MAINLY WEST OF
THE HIGHWAY 75 CORRIDOR IN NORTHEAST OKLAHOMA. DAMAGING
WINDS...LARGE HAIL AND AN ISOLATED TORNADO ARE POSSIBLE BEFORE
STORMS WEAKEN LATER IN THE NIGHT AS THEY MOVE EAST INTO A MORE
STABLE AIRMASS.

NUMEROUS THUNDERSTORMS HAVE DEVELOPED ACROSS NORTHERN AND CENTRAL
OKLAHOMA. THIS ACTIVITY WILL CONTINUE TO SPREAD EAST INTO NORTHEAST
OKLAHOMA THIS EVENING. ELEVATED SEVERE WEATHER POTENTIAL EXISTS WITH
THESE STORMS...BUT THIS POTENTIAL WILL BECOME MORE LIMITED AS THE
STORMS MOVE EAST INTO A MORE STABLE AIRMASS EAST OF HIGHWAY 75.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
ACTIVATION OF THE REGIONAL SPOTTER NETWORK POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
WEDNESDAY...THUNDERSTORM POTENTIAL.
THURSDAY...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL.
FRIDAY...THUNDERSTORM POTENTIAL.
SATURDAY THROUGH MONDAY...NO HAZARDS.

EXTENDED DISCUSSION...
A LOW CHANCE OF THUNDERSTORMS WILL CONTINUE ON WEDNESDAY ACROSS
FAR NORTHEAST OKLAHOMA AND FAR NORTHWEST ARKANSAS.  THURSDAY AND
THURSDAY NIGHT WILL POSE THE NEXT POTENTIAL FOR MORE WIDESPREAD
THUNDERSTORMS AS A COLD FRONT MOVES THROUGH THE REGION.
DRIER AND COOLER WEATHER IS EXPECTED OVER THE WEEKEND.

WWW.WEATHER.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

In the hours before

Special weather statement, Oct 4, 11:49 PM CDT, 1 hour 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1149 PM CDT TUE OCT 4 2016

OKZ054>057-050545-
CRAIG OK-NOWATA OK-WASHINGTON OK-OSAGE OK-
1149 PM CDT TUE OCT 4 2016

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL OSAGE...NORTHERN
NOWATA...NORTHERN WASHINGTON AND NORTHWESTERN CRAIG COUNTIES UNTIL
1245 AM CDT...

AT 1149 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES SOUTHWEST OF EDNA TO NEAR OKESA. MOVEMENT WAS
EAST AT 25 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
BARTLESVILLE...                   DEWEY...
SOUTH COFFEYVILLE...              LENAPAH...
WANN...                           OSAGE HILLS STATE PARK...
OKESA...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
NORTHEASTERN OKLAHOMA.

LAT...LON 3671 9589 3670 9630 3700 9570 3700 9514
TIME...MOT...LOC 0449Z 262DEG 20KT 3700 9548 3673 9612

Special weather statement, Oct 5, 12:13 AM CDT, 1 hour 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1213 AM CDT WED OCT 5 2016

OKZ065-066-050600-
OKFUSKEE OK-OKMULGEE OK-
1213 AM CDT WED OCT 5 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OKFUSKEE AND
SOUTHWESTERN OKMULGEE COUNTIES UNTIL 100 AM CDT...

AT 1213 AM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 4 MILES SOUTHEAST OF WELTY TO 3 MILES SOUTHWEST OF
OKEMAH TO 5 MILES SOUTH OF CROMWELL. MOVEMENT WAS NORTHEAST AT 25
MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
OKEMAH...                         HENRYETTA...
WELEETKA...                       BEARDEN...
CASTLE...                         CLEARVIEW...
PHAROAH...                        BRYANT...

THIS INCLUDES INTERSTATE 40 IN OKLAHOMA BETWEEN MILE MARKERS 214 AND
236.

LAT...LON 3552 9639 3557 9600 3530 9599 3529 9623
      3529 9641 3535 9641
TIME...MOT...LOC 0513Z 241DEG 24KT 3557 9636 3539 9633 3526 9648

Special weather statement, Oct 5, 12:42 AM CDT, 46 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1242 AM CDT WED OCT 5 2016

OKZ060-066-067-070-050615-
MUSKOGEE OK-TULSA OK-WAGONER OK-OKMULGEE OK-
1242 AM CDT WED OCT 5 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OKMULGEE...
SOUTHWESTERN WAGONER...NORTHWESTERN MUSKOGEE AND SOUTHEASTERN TULSA
COUNTIES UNTIL 115 AM CDT...

AT 1242 AM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 4 MILES SOUTHWEST OF ONETA TO 3 MILES WEST OF BOYNTON
TO 3 MILES SOUTH OF OKMULGEE. MOVEMENT WAS EAST AT 40 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
BROKEN ARROW...                   MUSKOGEE...
OKMULGEE...                       WAGONER...
BIXBY...                          COWETA...
HASKELL...                        MORRIS...
PORTER...                         OKTAHA...
TAFT...                           BOYNTON...
TULLAHASSEE...                    STONEBLUFF...
BALD HILL...                      PRESTON...
LIBERTY...                        WAINWRIGHT...
SUMMIT...                         REDBIRD...

LAT...LON 3600 9587 3600 9538 3558 9534 3556 9557
      3557 9600 3580 9601
TIME...MOT...LOC 0542Z 263DEG 36KT 3596 9574 3565 9571 3557 9594

Special weather statement, Oct 5, 12:50 AM CDT, 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1250 AM CDT WED OCT 5 2016

OKZ065-066-071-050615-
OKFUSKEE OK-MCINTOSH OK-OKMULGEE OK-
1250 AM CDT WED OCT 5 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN OKFUSKEE...
SOUTHEASTERN OKMULGEE AND NORTHWESTERN MCINTOSH COUNTIES UNTIL 115 AM
CDT...

AT 1249 AM CDT...A LINE OF STRONG THUNDERSTORMS WAS REPORTED ALONG A
LINE EXTENDING FROM 2 MILES NORTH OF SCHULTER TO 2 MILES SOUTHEAST OF
HENRYETTA TO 2 MILES NORTH OF WETUMKA. MOVEMENT WAS EAST AT 45 MPH.

WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
HENRYETTA...                      WELEETKA...
DEWAR...                          SCHULTER...
GRAYSON...                        HOFFMAN...
STIDHAM...                        LAKE EUFAULA STATE PARK...
VIVIAN...                         RAIFORD...
HITCHITA...                       BRYANT...
ONAPA...                          PIERCE...

THIS INCLUDES INTERSTATE 40 IN OKLAHOMA BETWEEN MILE MARKERS 237 AND
262.

LAT...LON 3542 9601 3558 9599 3557 9571 3555 9571
      3555 9554 3535 9555 3525 9582 3525 9598
      3529 9598 3529 9627
TIME...MOT...LOC 0549Z 279DEG 38KT 3555 9596 3542 9596 3528 9624

Special weather statement, Oct 5, 12:55 AM CDT, 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1255 AM CDT WED OCT 5 2016

OKZ060-061-067-050630-
ROGERS OK-TULSA OK-WAGONER OK-
1255 AM CDT WED OCT 5 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN ROGERS...
NORTHWESTERN WAGONER AND NORTHEASTERN TULSA COUNTIES UNTIL 130 AM
CDT...

AT 1255 AM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 3 MILES SOUTH OF VERA TO TULSA. MOVEMENT WAS EAST AT
35 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
NORTHERN TULSA...                 CLAREMORE...
OWASSO...                         CATOOSA...
COLLINSVILLE...                   VERDIGRIS...
OOLOGAH...

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 227 AND 250.

LAT...LON 3612 9559 3611 9592 3642 9592 3642 9581
      3644 9581 3645 9557
TIME...MOT...LOC 0555Z 273DEG 29KT 3641 9587 3615 9590

Special weather statement, Oct 5, 1:11 AM CDT, 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
111 AM CDT WED OCT 5 2016

OKZ060-062-065>068-070>072-050645-
OKFUSKEE OK-MUSKOGEE OK-TULSA OK-MCINTOSH OK-WAGONER OK-CHEROKEE OK-
SEQUOYAH OK-MAYES OK-OKMULGEE OK-
111 AM CDT WED OCT 5 2016

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN OKFUSKEE...SOUTHERN
MAYES...NORTHWESTERN SEQUOYAH...OKMULGEE...MCINTOSH...CHEROKEE...
WAGONER...MUSKOGEE AND SOUTHEASTERN TULSA COUNTIES UNTIL 145 AM
CDT...

AT 110 AM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 4 MILES WEST OF WAGONER TO 6 MILES SOUTHEAST OF TAFT
TO 3 MILES SOUTHWEST OF WETUMKA. MOVEMENT WAS EAST AT 45 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS. DIME
SIZE HAIL MAY ALSO BE POSSIBLE WITH THE STORMS ON THE SOUTHERN END
OF OKFUSKEE COUNTY.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
BROKEN ARROW...                   MUSKOGEE...
TAHLEQUAH...                      OKMULGEE...
WAGONER...                        OKEMAH...
COWETA...                         HENRYETTA...
FORT GIBSON...                    CHECOTAH...
HASKELL...                        WARNER...
MORRIS...                         WELEETKA...
DEWAR...                          OKAY...
WEBBERS FALLS...                  HULBERT...
PORTER...                         SCHULTER...

THIS INCLUDES INTERSTATE 40 IN OKLAHOMA BETWEEN MILE MARKERS 213 AND
278.

LAT...LON 3606 9567 3607 9545 3610 9544 3617 9501
      3616 9486 3569 9483 3519 9588 3519 9598
      3529 9598 3529 9644 3537 9644
TIME...MOT...LOC 0610Z 260DEG 39KT 3598 9544 3569 9548 3521 9629

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 4, 9:21 PM CDT	Special Weather Statement	TSA	Osage	39 min
Oct 4, 9:41 PM CDT	Severe Thunderstorm Warning	TSA	Osage	34 min
Oct 4, 10:13 PM CDT	Severe Thunderstorm Warning	TSA	Osage	47 min
Oct 4, 10:15 PM CDT	Special Weather Statement	TSA	Osage	45 min
Oct 4, 10:41 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	64 min
Oct 4, 11:00 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Washington	60 min
Oct 4, 11:01 PM CDT	Special Weather Statement	TSA	Osage, Pawnee	59 min
Oct 4, 11:46 PM CDT	Special Weather Statement	TSA	Okmulgee	44 min
Oct 4, 11:49 PM CDT	Special Weather Statement	TSA	Nowata	56 min
Oct 5, 12:13 AM CDT	Special Weather Statement	TSA	Okfuskee	47 min
Oct 5, 12:42 AM CDT	Special Weather Statement	TSA	Muskogee, Okmulgee, Wagoner	33 min
Oct 5, 12:50 AM CDT	Special Weather Statement	TSA	McIntosh	25 min
Oct 5, 12:55 AM CDT	Special Weather Statement	TSA	Rogers	35 min
Oct 5, 1:11 AM CDT	Special Weather Statement	TSA	Cherokee, McIntosh, Muskogee, Okfuskee, Okmulgee, Wagoner	34 min
Oct 5, 1:42 AM CDT	Special Weather Statement	TSA	Adair, Cherokee, McIntosh, Muskogee, Sequoyah	48 min
Oct 5, 2:00 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh	30 min
Oct 5, 2:27 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg	48 min
Oct 5, 2:30 AM CDT	Special Weather Statement	TSA	Adair, Muskogee, Sequoyah	45 min
Oct 5, 3:13 AM CDT	Special Weather Statement	TSA	Sequoyah	47 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2016 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.