Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

May 31, 2012Cherokee County, Delaware County, Oklahoma

NWS Tulsa, OK issued this special weather statement at May 31, 2012, 12:50 AM CDT for Cherokee County, Delaware County, Oklahoma. It was in force for 40 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: May 31, 2012, 12:50 AM CDT (05:50 UTC)
Expired: May 31, 2012, 1:30 AM CDT
In force: 40 min
Issued by: NWS Tulsa, OK

Counties Cherokee County, OK, Delaware County, OK

The radar

The Tulsa radar (KINX), 60 km from the middle of the area, began a volume at 05:51 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.8 hours before the alert went out and 118 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: 27 J/kg
Mixed-layer CIN: -316 J/kg
Mixed-layer LCL: 2376 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

755 
WWUS84 KTSA 310550
SPSTSA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1250 AM CDT THU MAY 31 2012

OKZ057-058-062-063-067>069-310630-
ADAIR OK-CHEROKEE OK-CRAIG OK-DELAWARE OK-MAYES OK-OTTAWA OK-WAGONER
OK-
1250 AM CDT THU MAY 31 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 130 AM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     NORTHERN CHEROKEE

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN CRAIG...DELAWARE...EASTERN MAYES...SOUTHERN
     OTTAWA...EASTERN WAGONER AND NORTHWESTERN ADAIR

AT 1249 AM CDT...STRONG OUTFLOW WINDS FROM THUNDERSTORMS ACROSS
NORTHEAST OKLAHOMA WERE LOCATED ALONG A LINE EXTENDING FROM 11 MILES 
NORTHWEST OF AFTON TO 5 MILES WEST OF CHLOETA TO 9 MILES NORTHWEST 
OF PEGGS TO 20 MILES WEST OF LOST CITY...MOVING EAST AT 35 MPH. 

A LARGE PORTION OF NORTHERN CHEROKEE...SOUTHEASTERN CRAIG...
DELAWARE...EASTERN MAYES...SOUTHERN OTTAWA...EASTERN WAGONER AND
NORTHWESTERN ADAIR COUNTIES WILL BE AFFECTED BY THESE STORMS THROUGH
130 AM CDT.

THUNDERSTORM OUTFLOW WIND GUSTS OF 50 MPH WILL BE POSSIBLE.

LAT...LON 3675 9464 3625 9458 3603 9461 3587 9494
      3602 9561 3613 9516 3638 9502 3677 9505
TIME...MOT...LOC 0549Z 282DEG 30KT 3676 9511 3640 9502
          3613 9521 3603 9546

$$

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 31, 12:04 AM CDT, 46 minutes earlier.

Area forecast discussion, May 31, 12:04 AM CDT, 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1204 AM CDT THU MAY 31 2012

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM.
CONVECTION WILL CONTINUE TO PUSH THROUGH NORTHEAST OKLAHOMA WITH
ADDITIONAL ACTIVITY MOVING ACROSS SOUTHEAST OKLAHOMA AND
NORTHWEST ARKANSAS AS A COLD FRONT MOVES INTO THE REGION. GUSTY
WINDS IN THE 25-35 KT RANGE HAVE BEEN COMMON WITHIN/BEHIND THE
CONVECTION...THUS WILL TEMPO IN FOR NORTHEAST OKLAHOMA. PRECIP
SHOULD COME TO AN END FROM NORTHWEST EARLY MORNING THURSDAY TO
THURSDAY LATE MORNING SOUTHEAST. BEHIND THE COLD FRONT...NORTHERLY
WINDS WILL BE COMMON. VFR CONDITIONS WILL BE COMMON FOR MOST OF
THE TAF PERIOD...THOUGH PERIODS OF MVFR CONDITIONS WILL BE CAPABLE
WITHIN THE AREAS OF CONVECTION.

&&

.PREV DISCUSSION... /ISSUED 802 PM CDT WED MAY 30 2012/

..UPDATE...

DISCUSSION...
STRONG TO SEVERE THUNDERSTORMS CONTINUE TO DEVELOP ALONG A COLD
FRONT PUSHING SOUTHWARD ACROSS KANSAS. THIS ACTIVITY IS EXPECTED
TO CONTINUE TO PUSH SOUTH WITH THE FRONT AND LOOKS TO MOVE INTO
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS A LITTLE QUICKER THAN
ORIGINALLY THOUGHT. LOOKS LIKE STORMS CELLS COULD BE CROSSING THE
BORDER INTO OKLAHOMA AFTER O2Z. ESTIMATED WINDS UP TOWARDS 70 MPH
HAVE BEEN SEEN WITH THESE STORMS AS THEY ARE PUSHING THROUGH
KANSAS. DAMAGING WINDS SHOULD CONTINUE TO BE THE MAIN THREAT WITH
THESE STORMS...THOUGH A HAIL THREAT ALSO EXISTS. THE TORNADO
THREAT LOOKS TO BE DECREASING AS THESE STORMS HAVE BEEN FORMING
INTO MORE OF A BOW/MCS OVER THE PAST HOUR. EVENING UPDATE WILL BE
TO ADJUST POPS/WIND GUSTS/SKY GRIDS AS THE MCS AND COLD FRONT MOVE
THROUGH THE REGION.

UPDATE WILL BE OUT SHORTLY.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   68  77  51  74 / 100  30   0   0
FSM   69  80  53  76 /  40  50  10   0
MLC   69  79  53  76 /  70  40  10  10
BVO   64  75  49  74 / 100  20   0  10
FYV   63  75  48  71 /  60  40  10   0
BYV   64  74  49  70 /  60  50  10   0
MKO   67  77  51  75 /  70  40  10   0
MIO   67  74  51  72 / 100  30  10   0
F10   67  77  52  74 /  80  40  10  10
HHW   70  82  56  79 /  50  30  10   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
AR...NONE.
&&

SHORT TERM...99
LONG TERM....99
AVIATION...20

Hazardous weather outlook, May 31, 12:43 AM CDT, 7 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1243 AM CDT THU MAY 31 2012

ARZ001-002-010-011-019-020-029-OKZ049-053>076-311745-
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-
1243 AM CDT THU MAY 31 2012

...SEVERE WEATHER MOVING THROUGH THE REGION TONIGHT...

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

.DAY ONE...TONIGHT.
TORNADO.
	RISK...LIMITED.
	AREA...NORTHEAST OKLAHOMA.
	ONSET...ONGOING.

SEVERE THUNDERSTORM.
	RISK...SIGNIFICANT.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

FLASH FLOOD.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

HEAVY RAIN.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

SIGNIFICANT WINDS.
	RISK...LIMITED.
	AREA...NORTHEAST OKLAHOMA.
	ONSET...ONGOING.

DISCUSSION...
A COMPLEX OF STRONG TO SEVERE THUNDERSTORMS CONTINUE TO MOVE
ACROSS NORTHEAST OKLAHOMA TONIGHT AS A COLD FRONT PUSHED INTO THE
REGION. DAMAGING WINDS...CAPABLE BOTH AHEAD OF THE STORMS AND
WITHIN THE STORMS HAVE BEEN THE MAIN THREAT...WITH ALSO A HAIL
THREAT INCLUDED. GUSTY WINDS HAVE ALSO BEEN REPORTED BEHIND THE
LEADING EDGE OF STORMS IN THE 25 TO 45 MPH RANGE. THIS COMPLEX
SHOULD CONTINUE TO PUSH ACROSS EASTERN OKLAHOMA AND INTO NORTHWEST
ARKANSAS TONIGHT AND THURSDAY MORNING WITH THE MOVEMENT OF THE
COLD FRONT. PERIOD OF HEAVY RAINFALL WILL ALSO BE POSSIBLE WITHIN
THE THUNDERSTORM COMPLEX WHICH COULD CREATE THE POTENTIAL FOR
FLASH FLOODING CONDITIONS.

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

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
THURSDAY...THUNDERSTORM POTENTIAL.
FRIDAY AND SATURDAY...THUNDERSTORM POTENTIAL.
SUNDAY THROUGH TUESDAY...THUNDERSTORM POTENTIAL.

EXTENDED DISCUSSION...
THUNDERSTORMS ARE EXPECTED TO BE ONGOING THURSDAY MORNING AS THE
COLD FRONT CONTINUES TO PUSH THROUGH EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS. A LIMITED SEVERE POTENTIAL WILL BE POSSIBLE
WITH THE ACTIVITY AHEAD OF THE COLD FRONT. THE COLD FRONT SHOULD
EXIT THE REGION THURSDAY AFTERNOON AND EVENING WITH COOLER AND
DRIER AIR FILTERING INTO THE REGION IN ITS WAKE.

CHANCES FOR SHOWERS AND THUNDERSTORMS LOOK TO RETURN TO EASTERN
OKLAHOMA AND NORTHWEST ARKANSAS FRIDAY NIGHT AND SATURDAY AS A
WEAK WARM FRONT TRIES TO PUSH NORTHWARD INTO THE REGION. THIS
FRONTAL BOUNDARY COULD REMAIN NEAR THE REGION SUNDAY AND MONDAY
WITH THE POTENTIAL TO RETURN SOUTHWARD AS A COLD FRONT TUESDAY.
THIS WILL ALLOW FOR SMALL CHANCES OF SHOWERS AND THUNDERSTORMS TO
CONTINUE THROUGH TUESDAY.

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

In the hours before

Special weather statement, May 30, 11:44 PM CDT, 1 hour 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1144 PM CDT WED MAY 30 2012

OKZ060>062-064-067-310530-
CREEK OK-MAYES OK-ROGERS OK-TULSA OK-WAGONER OK-
1144 PM CDT WED MAY 30 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1230 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     EASTERN CREEK...WESTERN MAYES...SOUTHERN ROGERS...EASTERN TULSA
     AND WESTERN WAGONER

AT 1143 PM CDT...STRONG OUTFLOW WINDS FROM THUNDERSTORMS TO THE
NORTH AND NORTHWEST OF TULSA WERE LOCATED ALONG A LINE EXTENDING
FROM 10 MILES NORTHEAST OF COLLINSVILLE TO 5 MILES SOUTHWEST OF
COLLINSVILLE TO 12 MILES WEST OF OWASSO...MOVING EAST AT 35 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED BY THESE OUTFLOW WINDS
INCLUDE...TULSA...CLAREMORE...INOLA...CATOOSA...VERDIGRIS...TIAWAH...
LEONARD...BIXBY...JENKS...OWASSO...GLENPOOL...COLLINSVILLE...BROKEN
ARROW...STONEBLUFF...COWETA...ONETA...MOUNDS AND KIEFER.

WIND GUSTS OF 45 MPH WILL BE POSSIBLE ALONG THE OUTFLOW. RESIDENTS
IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE SIGNIFICANT WEATHER
ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3632 9542 3612 9543 3586 9563 3586 9614
      3629 9589 3642 9580
TIME...MOT...LOC 0443Z 291DEG 32KT 3648 9573 3632 9589
          3626 9605

Local storm report, May 30, 11:46 PM CDT, 1 hour 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1146 PM CDT WED MAY 30 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1132 PM     TSTM WND DMG     DEWEY                   36.80N 95.94W
05/30/2012                   WASHINGTON         OK   LAW ENFORCEMENT

            LARGE TREE DOWN OVER ROAD

1130 PM     TSTM WND DMG     BARTLESVILLE            36.75N 95.98W
05/30/2012                   WASHINGTON         OK   LAW ENFORCEMENT

            LARGE TREE DOWN OVER ROAD

&&

RBD

Local storm report, May 31, 12:07 AM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1207 AM CDT THU MAY 31 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1140 PM     TSTM WND GST     OCHELATA                36.60N 95.98W
05/30/2012  E60 MPH          WASHINGTON         OK   PUBLIC

            ESTIMATED 60 MPH WIND GUST AND QUARTER SIZE HAIL. RELAYED
            THROUGH MEDIA.

&&

JDS

Special weather statement, May 31, 12:20 AM CDT, 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1220 AM CDT THU MAY 31 2012

OKZ064>066-310600-
CREEK OK-OKFUSKEE OK-OKMULGEE OK-
1220 AM CDT THU MAY 31 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 100 AM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHERN CREEK AND OKMULGEE

IN EAST CENTRAL OKLAHOMA
     OKFUSKEE

AT 1219 AM CDT...STRONG OUTFLOW WINDS FROM THUNDERSTORMS ACROSS
CENTRAL OKLAHOMA WERE LOCATED ALONG A LINE EXTENDING FROM 3 MILES
SOUTH OF BRISTOW TO 13 MILES SOUTHWEST OF PADEN...MOVING SOUTHEAST
AT 40 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED BY THESE WINDS
INCLUDE...WILSON...OKEMAH...WELEETKA...BEARDEN...CLEARVIEW...PHAROAH.
..CASTLE...PADEN...BOLEY...MASON...OKFUSKEE...WELTY...OKMULGEE...HENR
YETTA...BRYANT...DEWAR...SCHULTER...PRESTON...BEGGS...BALD
HILL...HECTORVILLE...BRISTOW...MILFAY...SLICK...DEPEW AND OKMULGEE
STATE PARK.

OUTFLOW WINDS UP TO 50 MPH WILL BE POSSIBLE.

LAT...LON 3580 9661 3585 9618 3585 9576 3529 9601
      3529 9645 3545 9645 3545 9648 3543 9649
      3545 9655 3540 9653 3539 9654 3540 9663
      3555 9664
TIME...MOT...LOC 0519Z 298DEG 34KT 3579 9640 3539 9675

Local storm report, May 31, 12:47 AM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1247 AM CDT THU MAY 31 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1241 AM     TSTM WND GST     SPERRY                  36.30N 95.99W
05/31/2012  E61 MPH          TULSA              OK   BROADCAST MEDIA

&&

JDS

Special weather statement, May 31, 12:50 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1250 AM CDT THU MAY 31 2012

OKZ057-058-062-063-067>069-310630-
ADAIR OK-CHEROKEE OK-CRAIG OK-DELAWARE OK-MAYES OK-OTTAWA OK-WAGONER
OK-
1250 AM CDT THU MAY 31 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 130 AM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     NORTHERN CHEROKEE

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN CRAIG...DELAWARE...EASTERN MAYES...SOUTHERN
     OTTAWA...EASTERN WAGONER AND NORTHWESTERN ADAIR

AT 1249 AM CDT...STRONG OUTFLOW WINDS FROM THUNDERSTORMS ACROSS
NORTHEAST OKLAHOMA WERE LOCATED ALONG A LINE EXTENDING FROM 11 MILES
NORTHWEST OF AFTON TO 5 MILES WEST OF CHLOETA TO 9 MILES NORTHWEST
OF PEGGS TO 20 MILES WEST OF LOST CITY...MOVING EAST AT 35 MPH.

A LARGE PORTION OF NORTHERN CHEROKEE...SOUTHEASTERN CRAIG...
DELAWARE...EASTERN MAYES...SOUTHERN OTTAWA...EASTERN WAGONER AND
NORTHWESTERN ADAIR COUNTIES WILL BE AFFECTED BY THESE STORMS THROUGH
130 AM CDT.

THUNDERSTORM OUTFLOW WIND GUSTS OF 50 MPH WILL BE POSSIBLE.

LAT...LON 3675 9464 3625 9458 3603 9461 3587 9494
      3602 9561 3613 9516 3638 9502 3677 9505
TIME...MOT...LOC 0549Z 282DEG 30KT 3676 9511 3640 9502
          3613 9521 3603 9546

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 9:25 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	65 min
May 30, 10:06 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	24 min
May 30, 10:24 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee, Washington	66 min
May 30, 11:06 PM CDT	Special Weather Statement	TSA	Craig, Nowata	39 min
May 30, 11:20 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Osage, Rogers, Washington	55 min
May 30, 11:21 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa	54 min
May 30, 11:44 PM CDT	Special Weather Statement	TSA	Tulsa	46 min
May 30, 11:51 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa	24 min
May 31, 12:10 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers	65 min
May 31, 12:13 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Wagoner and 1 more	62 min
May 31, 12:20 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	40 min
May 31, 1:13 AM CDT	Special Weather Statement	TSA	McIntosh, Mayes, Muskogee, Okmulgee, Rogers, Wagoner	62 min
May 31, 1:17 AM CDT	Special Weather Statement	TSA	Craig	28 min
May 31, 1:26 AM CDT	Areal Flood Advisory	TSA	Creek, Rogers, Tulsa	109 min
May 31, 1:47 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Sequoyah, Wagoner	43 min
May 31, 2:16 AM CDT	Special Weather Statement	TSA	Adair, Cherokee	59 min
May 31, 2:17 AM CDT	Special Weather Statement	TSA	Delaware	58 min
May 31, 2:38 AM CDT	Special Weather Statement	TSA	Adair	67 min
May 31, 3:17 AM CDT	Special Weather Statement	TSA	Carroll, Madison, Washington	58 min

Nearby

Special Weather Statements in Oklahoma, 2012 Every special weather statement in 2012

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.