Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

July 13, 2012Tulsa County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jul 13, 2012, 5:35 PM CDT for Tulsa 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: Jul 13, 2012, 5:35 PM CDT (22:35 UTC)
Expired: Jul 13, 2012, 6:15 PM CDT
In force: 40 min
Issued by: NWS Tulsa, OK

County Tulsa County, OK

The radar

The Tulsa radar (KINX), 39 km from the middle of the area, began a volume at 22:35 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

Lamont, OK (KLMN), launched 12:00Z, 10.6 hours before the alert went out and 145 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: 217 J/kg
Mixed-layer CIN: -245 J/kg
Mixed-layer LCL: 1927 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 34 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.

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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 Jul 13, 3:33 PM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Jul 13, 3:33 PM CDT, 2 hours 2 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
333 PM CDT FRI JUL 13 2012

.DISCUSSION...
ORGANIZED CLUSTER OF SHOWERS AND THUNDERSTORMS SNEAKING UP ON
OK/KS BORDER PRESENTLY CONTINUES TO SHOW TENDENCY OF DEVELOPMENT
ON THE WESTERN FLANK AS THE WHOLE COMPLEX DIVES SOUTH. THESE
STORMS SHOULD CONTINUE TO PUSH SOUTH THIS AFTERNOON THROUGH AXIS
OF HIGHEST INSTABILITY ORIENTED NEAR I-44. A LIMITED THREAT WILL
EXIST OF DAMAGING DOWNBURSTS WITH DCAPES AROUND 1000 J/KG PRESENT
THROUGHOUT EASTERN OK. OTHER TERRAIN FORCED STORMS WILL REMAIN
POSSIBLE THROUGH THE LATE AFTERNOON AS WELL. WILL NEED TO INCLUDE
A PRE FIRST PERIOD WITH HIGH POPS ACROSS SOME OF NE OKLAHOMA LATE
THIS AFTERNOON. TREND SHOULD BE FOR THIS ACTIVITY TO DECREASE
AFTER 00Z BUT THERE IS A SHOT AT LEAST OF SOME MAKING IT INTO SE
OKLAHOMA AS WELL. MOST IF NOT ALL SHOULD BE GONE AFTER 06Z.

UPPER LEVEL LOW ALONG THE TX/LA GULF COAST EXPECTED TO SLIDE WEST
THE NEXT COUPLE OF DAYS AND KEEP SMALL CHANCES OF AFTERNOON/EVENING
THUNDERSTORMS MAINLY ACROSS SOUTHERN AND EASTERN SECTIONS. THIS
ALSO LEADS TO A MODEST BREAK DOWN IN THE UPPER RIDGE AND WILL
KNOCK A DEGREE OR TWO OFF AFTERNOON TEMPS IN MOST AREAS. BEYOND
THAT STRONG RIDGE EXPECTED TO BUILD BACK OVER THE AREA WITH TRIPLE
DIGIT HEAT BOOMING WIDESPREAD NEXT WEEK. OUTSIDE OF URBAN AREAS
THE OVERNIGHT LOWS SHOULD REMAIN BELOW 75 THROUGH MID WEEK BUT BY
LATE NEXT WEEK HEADLINES MAY BE NEEDED...AND RECENT BIAS ADJUSTMENT
TO MEX GUIDANCE SUGGESTS HIGHS WELL OVER 100 BY END OF THE WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   75 100  77  98 /  20  10  10  10
FSM   76  98  75  96 /  20  20  30  30
MLC   71  95  71  93 /  20  10  20  20
BVO   66 100  69  99 /  10  10  10  10
FYV   65  94  67  92 /  20  10  10  20
BYV   69  93  68  92 /  20  20  20  20
MKO   72  99  71  97 /  30  10  10  20
MIO   70 100  72  97 /  20  10  10  10
F10   70 100  72  96 /  30  10  10  20
HHW   73  93  72  91 /  20  30  30  30

&&

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

SHORT TERM...23
LONG TERM....14

Hazardous weather outlook, Jul 13, 4:54 PM CDT, 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
454 PM CDT FRI JUL 13 2012

ARZ001-002-010-011-019-020-029-OKZ049-053>076-141000-
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-
453 PM CDT FRI JUL 13 2012

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

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORM.
	RISK...LIMITED.
	AREA...NORTHEAST OKLAHOMA AND FAR NORTHWEST ARKANSAS
	ONSET...LATE AFTERNOON INTO THE EVENING.

DANGEROUS HEAT.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING THROUGH EARLY EVENING.

FIRE WEATHER DANGER.
	RISK...LIMITED.
	AREA...PORTIONS OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING THROUGH EARLY EVENING.

DISCUSSION...
AN UPPER LEVEL DISTURBANCE TO THE NORTH OF THE AREA SPARKED
THUNDERSTORM ACTIVITY ACROSS KANSAS EARLIER THIS AFTERNOON.
INITIAL THUNDERSTORMS HAVE GENERATED SUFFICIENT OUTFLOW TO FOCUS
ADDITIONAL DEVELOPMENT ACROSS NORTHEAST OKLAHOMA LATE THIS
AFTERNOON. MOST THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE
LIMITS...HOWEVER ONE OR TWO STORMS WILL BE CAPABLE OF PRODUCING
BRIEF SEVERE DOWNBURST WINDS TO 60 MPH INTO THE EVENING HOURS. LOSS OF
DAYTIME HEATING WILL WEAKEN AND GRADUALLY DISSIPATE ONGOING ACTIVITY.

VERY HOT CONDITIONS IN PLA CEAWAY FROM THUNDERSTORMS AND
ASSOCIATED OUTFLOW WILL CONTINUE INTO THE EVENING. AT THAT TIME
NOCTURNAL COOLING WILL BEGIN TO MITIGATE THE HIGHEST HEAT INDEX
VALUES.

A LIMITED FIRE DANGER CONTINUES FOR PORTIONS OF EASTERN OKLAHOMA
AND NORTHWEST ARKANSAS...HIGHER RELATIVE HUMIDITY VALUES
OVERNIGHT WILL RESULT IN A ONLY MODEST OFFSET OF THE FIRE DANGER.

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

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
SATURDAY AND SUNDAY...THUNDERSTORM POTENTIAL.
MONDAY...THUNDERSTORM POTENTIAL...VERY HIGH FIRE WEATHER
POTENTIAL...DANGEROUS HEAT POTENTIAL.
TUESDAY THROUGH THURSDAY...VERY HIGH FIRE WEATHER POTENTIAL
                        ...DANGEROUS HEAT POTENTIAL.

EXTENDED DISCUSSION...
AFTERNOON HEAT INDICES WILL RANGE FROM 100 TO 105 DEGREES THIS
WEEKEND...AND MAY REACH 105 DEGREES EARLY NEXT WEEK. ISOLATED
THUNDERSTORM POTENTIAL WILL REMAIN LARGELY CONFINED TO THE HIGHER
TERRAIN OF NORTHWEST ARKANSAS AND SOUTHEAST OKLAHOMA.

THE FIRE DANGER WILL GRADUALLY INCREASE OVER THE WEEKEND AND INTO
NEXT WEEK AS WINDS GRADUALLY INCREASE AND THE SOILS DRY OUT FROM
ANY RECENT RECENT RAINFALL.

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

In the hours before

Special weather statement, Jul 13, 3:59 PM CDT, 1 hour 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
359 PM CDT FRI JUL 13 2012

OKZ054-055-132130-
OSAGE OK-WASHINGTON OK-
359 PM CDT FRI JUL 13 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 430 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     NORTHEASTERN OSAGE AND WASHINGTON

AT 359 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES SOUTH OF
HULAH...MOVING SOUTHEAST AT 5 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...HULAH AND COPAN.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS STORM
WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3686 9589 3677 9602 3688 9614 3699 9599
TIME...MOT...LOC 2059Z 317DEG 6KT 3688 9602

Special weather statement, Jul 13, 4:14 PM CDT, 1 hour 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
414 PM CDT FRI JUL 13 2012

OKZ054-055-060-132215-
OSAGE OK-TULSA OK-WASHINGTON OK-
414 PM CDT FRI JUL 13 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 515 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     NORTHEASTERN OSAGE...NORTHERN TULSA AND WASHINGTON

AT 414 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 5 MILES NORTH OF FORAKER TO WOLCO...MOVING SOUTH AT 15
MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE...
TULSA...PAWHUSKA...AVANT...WOLCO...BARNSDALL...PERSHING...TALLANT...
NELAGONEY...OKESA...PEARSONIA...BIGHEART...FORAKER...SKIATOOK...
BARTLESVILLE...VERA...RAMONA...OCHELATA AND OSAGE HILLS STATE PARK.

THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3674 9585 3624 9588 3674 9654 3700 9661
      3701 9626
TIME...MOT...LOC 2114Z 339DEG 15KT 3692 9653 3654 9606

Special weather statement, Jul 13, 4:38 PM CDT, 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
438 PM CDT FRI JUL 13 2012

OKZ060>063-067-068-132215-
CHEROKEE OK-DELAWARE OK-MAYES OK-ROGERS OK-TULSA OK-WAGONER OK-
438 PM CDT FRI JUL 13 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 515 PM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     NORTHWESTERN CHEROKEE

IN NORTHEAST OKLAHOMA
     SOUTHWESTERN DELAWARE...MAYES...ROGERS...NORTHEASTERN TULSA AND
     NORTHERN WAGONER

AT 436 PM CDT...GUSTY WINDS TO 45 MPH...IN ASSOCIATION WITH A
THUNDERSTORM OUTFLOW BOUNDARY...WAS LOCATED ALONG A LINE EXTENDING
FROM 2 MILES EAST OF COLLINSVILLE TO 5 MILES SOUTHEAST OF BUSHYHEAD
TO 3 MILES SOUTH OF SPAVINAW STATE PARK...MOVING SOUTH AT 30 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED BY THESE GUSTY WINDS
INCLUDE...TULSA...CLAREMORE...INOLA...CATOOSA...VERDIGRIS...TIAWAH...
FOYIL...OOLOGAH...BUSHYHEAD...PEGGS...OWASSO...COLLINSVILLE...BROKEN
ARROW...PRYOR...MAZIE...MURPHY...CHOUTEAU...LOCUST
GROVE...ROSE...SALINA...SPAVINAW...STRANG...ADAIR...SNOWDALE STATE
PARK AND SPAVINAW STATE PARK.

LAT...LON 3641 9497 3600 9502 3607 9546 3604 9587
      3642 9588 3642 9582 3645 9581 3649 9542
TIME...MOT...LOC 2136Z 005DEG 26KT 3636 9580 3640 9543
          3634 9509

Special weather statement, Jul 13, 5:00 PM CDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
500 PM CDT FRI JUL 13 2012

OKZ054-055-059-060-132245-
OSAGE OK-PAWNEE OK-TULSA OK-WASHINGTON OK-
500 PM CDT FRI JUL 13 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 545 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     SOUTHEASTERN OSAGE...PAWNEE...NORTHERN TULSA AND SOUTHERN
     WASHINGTON

AT 500 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 5 MILES NORTHWEST OF HOMINY TO COLLINSVILLE...MOVING
SOUTH AT 25 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS
INCLUDE...TULSA...OSAGE...HOMINY...AVANT...WYNONA...OWASSO...
SPERRY...SKIATOOK...COLLINSVILLE...VERA...CLEVELAND...WESTPORT AND
WALNUT CREEK STATE PARK.

THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 40 MPH.

LAT...LON 3663 9653 3646 9583 3611 9582 3624 9659
TIME...MOT...LOC 2200Z 001DEG 20KT 3645 9645 3637 9585

Special weather statement, Jul 13, 5:07 PM CDT, 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
507 PM CDT FRI JUL 13 2012

OKZ062-063-132245-
DELAWARE OK-MAYES OK-
507 PM CDT FRI JUL 13 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 545 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     WESTERN DELAWARE AND EASTERN MAYES

AT 508 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER SPAVINAW...
MOVING SOUTHWEST AT 10 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY
THIS STORM INCLUDE...LOCUST GROVE...SALINA...SPAVINAW...SNOWDALE
STATE PARK AND SPAVINAW STATE PARK.

THIS STORM WILL BE CAPABLE OF PRODUCING PEA HAIL AND WIND GUSTS TO
45 MPH.

LAT...LON 3637 9490 3616 9510 3616 9513 3630 9532
      3645 9505
TIME...MOT...LOC 2208Z 041DEG 9KT 3636 9506

Special weather statement, Jul 13, 5:35 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
535 PM CDT FRI JUL 13 2012

OKZ060-064-132315-
CREEK OK-TULSA OK-
535 PM CDT FRI JUL 13 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 615 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     NORTHEASTERN CREEK AND CENTRAL TULSA

AT 536 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER TULSA...MOVING
SOUTHWEST AT 5 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS
STORM INCLUDE...TULSA...JENKS AND GLENPOOL.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 50 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3616 9601 3616 9600 3618 9600 3618 9599
      3611 9581 3591 9591 3602 9616
TIME...MOT...LOC 2236Z 030DEG 3KT 3610 9594

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 7:17 PM CDT	Special Weather Statement	TSA	Sequoyah	58 min
Jul 12, 8:16 PM CDT	Special Weather Statement	TSA	LeFlore	59 min
Jul 12, 9:13 PM CDT	Special Weather Statement	TSA	LeFlore	62 min
Jul 12, 9:54 PM CDT	Special Weather Statement	TSA	Pushmataha	66 min
Jul 13, 3:46 PM CDT	Special Weather Statement	TSA	Nowata	29 min
Jul 13, 3:59 PM CDT	Special Weather Statement	TSA	Washington	31 min
Jul 13, 4:14 PM CDT	Special Weather Statement	TSA	Washington	61 min
Jul 13, 4:38 PM CDT	Special Weather Statement	TSA	Mayes, Rogers	37 min
Jul 13, 5:00 PM CDT	Special Weather Statement	TSA	Osage	45 min
Jul 13, 5:07 PM CDT	Special Weather Statement	TSA	Mayes	38 min
Jul 13, 5:39 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	36 min
Jul 13, 5:50 PM CDT	Special Weather Statement	TSA	Pawnee	25 min
Jul 13, 5:57 PM CDT	Special Weather Statement	TSA	Muskogee	33 min
Jul 13, 6:16 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	44 min
Jul 13, 6:17 PM CDT	Special Weather Statement	TSA	Creek	28 min
Jul 13, 6:49 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	56 min
Jul 13, 6:50 PM CDT	Special Weather Statement	TSA	Okfuskee	55 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.