Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 174, NWS Tulsa, OK

June 30, 2016Washington County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 30, 2016, 5:50 PM CDT for Washington County, Oklahoma. It was in force for 14 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: Jun 30, 2016, 5:50 PM CDT (22:50 UTC)
Expired: Jun 30, 2016, 6:04 PM CDT
In force: 14 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Washington County, OK

The radar

The Tulsa radar (KINX), 82 km from the middle of the area, began a volume at 22:52 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

Springfield, MO (KSGF), launched 12:00Z, 10.8 hours before the alert went out and 189 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: 610 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1311 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

767 
WUUS54 KTSA 302250
SVRTSA
OKC147-302330-
/O.NEW.KTSA.SV.W.0174.160630T2250Z-160630T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
550 PM CDT THU JUN 30 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN WASHINGTON COUNTY IN NORTHEASTERN OKLAHOMA...

* UNTIL 630 PM CDT

* AT 550 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER COPAN...AND
  IS NEARLY STATIONARY.

  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...
  DEWEY...                          COPAN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3680 9600 3694 9600 3696 9581 3679 9581
TIME...MOT...LOC 2250Z 274DEG 2KT 3688 9591 

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

1 follow-up statement

011 
WWUS54 KTSA 302304
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
604 PM CDT THU JUN 30 2016

OKC147-302313-
/O.CAN.KTSA.SV.W.0174.000000T0000Z-160630T2330Z/
WASHINGTON OK-
604 PM CDT THU JUN 30 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WASHINGTON COUNTY IS
CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER GUSTY WINDS AND
HEAVY RAIN...WHICH COULD LEAD TO SOME MINOR FLOODING...ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3680 9600 3694 9600 3696 9581 3679 9581
TIME...MOT...LOC 2258Z 274DEG 2KT 3688 9590 

$$

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 Jun 30, 2:57 PM CDT, 2 hours 53 minutes earlier.

Area forecast discussion, Jun 30, 2:57 PM CDT, 2 hours 53 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
257 PM CDT THU JUN 30 2016

.DISCUSSION...
A cold front currently across central Kansas will try to move into
northeast Oklahoma Tonight into Friday increasing the chances
of showers and thunderstorms across areas north of Interstate 40
into Friday. Subtle shortwaves embedded in the decaying northwesterly
flow aloft will also aid in the development of these scattered showers
and thunderstorms. The chances of showers and thunderstorms will
continue on Saturday as the frontal boundary lifts back north to near
the Kansas/Oklahoma border. These chances will mainly be north of
highway 412.

Better chances of showers and thunderstorms arrive Saturday night and
continue into Independence Day as a more significant mid-level shortwave
moves out of the southwest United States and across the plains. Showers
and thunderstorms will linger into Tuesday as an associated frontal
boundary lingers in the vicinity.

Dry weather is expected Wednesday into Thursday as high pressure aloft
builds in the area. Temperatures will warm as well with high temperatures
around 100 degrees possible Wednesday and especially on Thursday.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   73  89  73  96 /  50  40  20   0
FSM   74  94  74  96 /  20  20  20   0
MLC   71  93  73  95 /  10   0   0   0
BVO   70  85  70  93 /  50  50  30  20
FYV   69  86  70  90 /  30  40  20  20
BYV   69  85  69  88 /  50  50  20  30
MKO   73  91  72  95 /  30  20  10   0
MIO   70  85  68  91 /  50  50  40  30
F10   73  91  73  94 /  30  10   0   0
HHW   70  96  73  96 /   0   0   0   0

&&

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

SHORT TERM...23
LONG TERM....10

Hazardous weather outlook, Jun 30, 4:46 PM CDT, 1 hour 4 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
446 PM CDT THU JUN 30 2016

ARZ001-002-010-011-019-020-029-OKZ049-053>076-011030-
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-
446 PM CDT THU JUN 30 2016

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

.DAY ONE...THROUGH TONIGHT.

SEVERE THUNDERSTORM.
	RISK...LIMITED.
	AREA...NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...LATE AFTERNOON AND CONTINUING THROUGH THIS EVENING.

DANGEROUS HEAT.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND WEST CENTRAL ARKANSAS.
    ONSET...ONGOING...BUT DIMINISHING THIS EVENING.

DISCUSSION...
SCATTERED SHOWERS AND THUNDERSTORMS HAVE BEGUN TO DEVELOP LATE
THIS AFTERNOON ACROSS THE HIGHER TERRAIN LOCATIONS OF NORTHWEST
ARKANSAS...AND ACROSS SOUTHERN KANSAS AHEAD OF A WEAK FRONTAL
BOUNDARY. A LIMITED THREAT OF SEVERE WEATHER WILL EXIST IN AREAS
OF NORTHEAST OKLAHOMA NEAR THE KANSAS BORDER...AND ACROSS
NORTHWEST ARKANSAS IN THE FORM OF DAMAGING DOWNBURST WINDS.

HEAT INDEX VALUES APPROACHING 100 DEGREES IN MANY AREAS THIS
AFTERNOON WILL LESSEN THIS EVENING.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
LOCAL SPOTTER ACTIVATION MAY BE NEEDED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.
FRIDAY AND SATURDAY...THUNDERSTORM POTENTIAL.
SUNDAY...THUNDERSTORM POTENTIAL...DANGEROUS HEAT POTENTIAL
      ...HEAVY RAIN POTENTIAL.
MONDAY...THUNDERSTORM POTENTIAL.
TUESDAY...THUNDERSTORM POTENTIAL...DANGEROUS HEAT POTENTIAL.
WEDNESDAY...DANGEROUS HEAT POTENTIAL.

EXTENDED DISCUSSION...
THUNDERSTORM CHANCES WILL CONTINUE INTO FRIDAY AS THE FRONTAL BOUNDARY
REMAINS NEAR THE AREA. ADDITIONAL THUNDERSTORM POTENTIAL WILL
EXIST OVER THE REGION AS THE BOUNDARY INTERACTS WITH AN UPPER DISTURBANCE
LATE SATURDAY AND SUNDAY. DANGEROUS HEAT POTENTIAL WILL EXIST
SOUTH OF THE BOUNDARY...AND AWAY FROM ANY STORMS OVER THE WEEKEND INTO
EARLY NEXT WEEK.

FOR THE MIDDLE TO LATTER PORTION OF NEXT WEEK...RISING MID LEVEL
HEIGHTS AND TEMPS WILL LIKELY BRING AN END TO THE DAILY THUNDERSTORM
CHANCES...WITH DANGEROUS HEAT BECOMING MORE WIDESPREAD.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

In the hours before

Special weather statement, Jun 30, 4:23 PM CDT, 1 hour 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
423 PM CDT THU JUN 30 2016

ARZ001-010-302145-
WASHINGTON AR-BENTON AR-
423 PM CDT THU JUN 30 2016

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BENTON AND NORTHEASTERN
WASHINGTON COUNTIES UNTIL 445 PM CDT...

AT 422 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR CAVE
SPRINGS... MOVING EAST AT 20 MPH. OTHER STRONG STORMS WERE LOCATED
NEAR SPRINGTOWN AND OVER WAR EAGLE...ALSO MOVING EAST AT 20 MPH.

PEA TO DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE
WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
FAYETTEVILLE...                   SPRINGDALE...
ROGERS...                         BENTONVILLE...
LOWELL...                         TONTITOWN...
BETHEL HEIGHTS...                 CAVE SPRINGS...
HIGHFILL...                       SPRINGTOWN...
HOBBS STATE PARK...               WAR EAGLE...
CENTERTON...                      JOHNSON...
ELM SPRINGS...                    GOSHEN...
OAK GROVE...                      LARUE...
SONORA...                         SHADY GROVE...

THIS INCLUDES INTERSTATE 49 BETWEEN MILE MARKERS 70 AND 84.

LAT...LON 3623 9388 3623 9389 3609 9394 3619 9444
      3635 9444 3635 9387
TIME...MOT...LOC 2122Z 276DEG 18KT 3625 9419

Special weather statement, Jun 30, 4:48 PM CDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
448 PM CDT THU JUN 30 2016

ARZ001-010-011-302215-
WASHINGTON AR-BENTON AR-MADISON AR-
448 PM CDT THU JUN 30 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MADISON...EAST CENTRAL
BENTON AND NORTHEASTERN WASHINGTON COUNTIES UNTIL 515 PM CDT...

AT 447 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER SPRINGDALE...
MOVING EAST AT 20 MPH. ANOTHER STRONG STORM WAS LOCATED OVER CLIFTY
IN NORTHERN MADISON COUNTY...AND WAS ALSO MOVING EAST AT 20 MPH.

PEA TO DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE
WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
FAYETTEVILLE...                   SPRINGDALE...
ROGERS...                         HUNTSVILLE...
LOWELL...                         TONTITOWN...
BETHEL HEIGHTS...                 HINDSVILLE...
FORUM...                          HOBBS STATE PARK...
CLIFTY...                         WITHROW SPRINGS STATE PARK...
WAR EAGLE...                      MARBLE...
JOHNSON...                        GOSHEN...
OAK GROVE...                      SONORA...
HARMONY...                        ROCKHOUSE...

THIS INCLUDES INTERSTATE 49 BETWEEN MILE MARKERS 66 AND 81.

LAT...LON 3599 9353 3611 9424 3630 9418 3630 9365
      3628 9366 3628 9363 3627 9364 3626 9362
      3620 9362 3619 9361 3619 9358 3616 9358
      3615 9355 3613 9355 3612 9352
TIME...MOT...LOC 2147Z 276DEG 17KT 3620 9414

Special weather statement, Jun 30, 5:08 PM CDT, 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
508 PM CDT THU JUN 30 2016

ARZ002-011-302245-
MADISON AR-CARROLL AR-
508 PM CDT THU JUN 30 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN MADISON AND
SOUTHEASTERN CARROLL COUNTIES UNTIL 545 PM CDT...

AT 507 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTH OF
MARBLE...MOVING EAST AT 30 MPH.

PEA TO DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE
WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
RUDD...                           RULE...
MARBLE...                         CARROLLTON...
OSAGE...                          DELMAR...
DRYFORK...                        CONNOR...
CABANAL...                        METALTON...
ALABAM...

LAT...LON 3612 9348 3608 9348 3608 9345 3604 9345
      3614 9372 3631 9366 3629 9330 3612 9330
TIME...MOT...LOC 2207Z 286DEG 25KT 3621 9361

Special weather statement, Jun 30, 5:26 PM CDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
526 PM CDT THU JUN 30 2016

OKZ054-055-302315-
WASHINGTON OK-OSAGE OK-
526 PM CDT THU JUN 30 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OSAGE AND NORTHERN
WASHINGTON COUNTIES UNTIL 615 PM CDT...

AT 525 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR CHAUTAUQUA...
MOVING SOUTHEAST AT 10 MPH.

PEA TO DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE
WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
COPAN...                          ELGIN...
HULAH...                          BIGHEART...
WAH SHA SHE STATE PARK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3700 9588 3694 9581 3692 9581 3678 9630
      3700 9630
TIME...MOT...LOC 2225Z 334DEG 8KT 3706 9616

Special weather statement, Jun 30, 5:45 PM CDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
545 PM CDT THU JUN 30 2016

OKZ055-302315-
WASHINGTON OK-
545 PM CDT THU JUN 30 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN WASHINGTON COUNTY UNTIL
615 PM CDT...

AT 545 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR COPAN...MOVING
EAST AT 10 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IN OR NEAR THE PATH INCLUDE...
BARTLESVILLE...                   DEWEY...
COPAN...

LAT...LON 3694 9579 3694 9581 3677 9581 3676 9595
      3691 9600 3693 9600 3700 9583 3700 9579
TIME...MOT...LOC 2245Z 254DEG 7KT 3687 9589

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 5:26 PM CDT	Special Weather Statement	TSA	Washington	49 min
Jun 30, 5:43 PM CDT	Severe Thunderstorm Warning	TSA	Osage	47 min
Jun 30, 5:45 PM CDT	Special Weather Statement	TSA	Washington	30 min
Jun 30, 6:16 PM CDT	Special Weather Statement	TSA	Washington	44 min
Jun 30, 6:20 PM CDT	Special Weather Statement	TSA	Kay	25 min
Jun 30, 6:30 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	30 min
Jun 30, 6:40 PM CDT	Special Weather Statement	TSA	Rogers	50 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.