Alert archive / Oklahoma / Special Weather Statements in 2016

Special Weather Statement, NWS Tulsa, OK

September 10, 2016McIntosh County, Muskogee County, Okmulgee County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Sep 10, 2016, 12:45 AM CDT for McIntosh County, Muskogee County, Okmulgee County, Oklahoma. It was in force for 60 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
Sep 10, 2016, 12:45 AM CDT (05:45 UTC)
Expired
Sep 10, 2016, 1:45 AM CDT
In force
60 min
Issued by
NWS Tulsa, OK

Counties McIntosh County, OK, Muskogee County, OK, Okmulgee County, OK

The radar

The Tulsa radar (KINX), 89 km from the middle of the area, began a volume at 05:45 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

Norman, OK (KOUN), launched 00:00Z, 5.8 hours before the alert went out and 165 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 00:00Z on 2016-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1913 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2016-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939Sfc1 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
1913 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1712 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.4
Supercell composite
9.7

Open this sounding in Storm Lab

The text

As transmitted.

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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 Sep 9, 11:55 PM CDT, 50 minutes earlier.

Area forecast discussion, Sep 9, 11:55 PM CDT, 50 minutes before
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Hazardous weather outlook, Sep 9, 7:48 PM CDT, 4 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE TULSA OK
748 PM CDT FRI SEP 9 2016

ARZ001-002-010-011-019-020-029-OKZ049-053>076-101045-
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-
748 PM CDT FRI SEP 9 2016

...THUNDERSTORM POTENTIAL INCREASES THIS EVENING WITH A COLD
FRONT...

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

.DAY ONE...TONIGHT.

SEVERE THUNDERSTORM.
	RISK...LIMITED.
 	AREA...NEAR THE KANSAS BORDER IN NORTHEAST OKLAHOMA.
	ONSET...MOSTLY LIKELY BETWEEN 9 PM AND MIDNIGHT.

FLASH FLOOD.
	RISK...LIMITED.
	AREA...FAR NORTHEAST OKLAHOMA AND FAR NORTHWEST ARKANSAS.
	ONSET...MOST LIKELY BETWEEN 10 PM AND 3 AM.

HEAVY RAIN.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...AFTER 9 PM.

DANGEROUS HEAT.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING...ENDING BY SUNSET.

DISCUSSION...

POCKETS OF DAMAGING WIND AND ISOLATED MARGINALLY SEVERE HAIL WILL
BE THE MAIN THREATS FROM STORMS THIS EVENING. THE AREA WITH THE
GREATEST THREAT FOR SEVERE WEATHER WILL BE NEAR THE KANSAS BORDER
ACROSS NORTHEAST OKLAHOMA. THE SEVERE WEATHER THREAT WILL DROP
CONSIDERABLY DURING THE OVERNIGHT HOURS AS THE ATMOSPHERE
STABILIZES.

A BROKEN LINE OF STORMS HAS ORGANIZED ALONG THE COLD FRONT ACROSS
KANSAS AND NW OK. THIS LINE OF STORMS WILL MOVE GENERALLY FROM NW TO
SE ACROSS THE REGION THIS EVENING AND TONIGHT. WEAK SHEAR AND
DECREASING INSTABILITY WITH TIME TONIGHT AND A TENDENCY FOR STORMS
TO BE UNDERCUT BY THE ADVANCING FRONT WILL MITIGATE THE OVERALL
SEVERE THREAT WITH THE FRONT. THUS...THE GREATEST POTENTIAL FOR
SEVERE WEATHER WILL BE ACROSS NORTHEAST OKLAHOMA AND CLOSER TO THE
KANSAS BORDER.

POCKETS OF LOCALLY HEAVY RAIN ARE EXPECTED...WITH BETWEEN AND INCH
AND 2 INCHES POSSIBLE ACROSS NORTHEAST OKLAHOMA AND NORTHWEST
ARKANSAS. IF THIS HEAVY RAIN FALLS ON AREAS THAT PICKED UP HEAVY
RAINS LAST NIGHT...SOME FLASH FLOODING COULD THEN OCCUR.

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

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
SATURDAY...THUNDERSTORM POTENTIAL.
SUNDAY...NO HAZARDS.
MONDAY THRU THURSDAY...THUNDERSTORM POTENTIAL.

EXTENDED DISCUSSION...

POST FRONTAL THUNDERSTORM CHANCES WILL REMAIN POSSIBLE SATURDAY
MORNING OVER SOUTHEAST OKLAHOMA AND WESTERN ARKANSAS BEFORE THE
FRONT EXITS OFF TO THE SOUTH. HIGH PRESSURE WITH A COOLER AND
DRIER AIRMASS IS FORECAST TO FILTER INTO THE REGION BEHIND THE
DEPARTING COLD FRONT THROUGH THE WEEKEND. THUNDERSTORM CHANCES
RETURN NEXT WEEK AS ANOTHER LOW PRESSURE SYSTEM AND FRONTAL
BOUNDARY APPROACH THE REGION.

WWW.WEATHER.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

LACY

In the hours before

Special weather statement, Sep 9, 11:18 PM CDT, 1 hour 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1118 PM CDT FRI SEP 9 2016

OKZ054>058-061-100515-
ROGERS OK-CRAIG OK-NOWATA OK-OTTAWA OK-WASHINGTON OK-OSAGE OK-
1118 PM CDT FRI SEP 9 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN ROGERS...NORTHEASTERN
OSAGE...OTTAWA...NOWATA...WASHINGTON AND CRAIG COUNTIES UNTIL 1215 AM
CDT...

AT 1117 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR GALENA TO 4 MILES NORTHWEST OF WELCH TO 5 MILES
NORTHEAST OF DEWEY TO NEAR BARNSDALL. MOVEMENT WAS EAST SOUTHEAST AT
35 MPH.

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

LOCATIONS IN OR NEAR THE PATH INCLUDE...
BARTLESVILLE...                   MIAMI...
VINITA...                         NOWATA...
PAWHUSKA...                       DEWEY...
COMMERCE...                       CHELSEA...
FAIRLAND...                       AFTON...
QUAPAW...                         SOUTH COFFEYVILLE...
COPAN...                          WELCH...
OCHELATA...                       DELAWARE...
BLUEJACKET...                     WYANDOTTE...
LENAPAH...                        TALALA...

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 275 AND 324.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3700 9462 3667 9462 3667 9500 3658 9501
      3651 9534 3651 9543 3649 9544 3663 9642
      3700 9624
TIME...MOT...LOC 0417Z 283DEG 44KT 3707 9462 3693 9515 3684 9585 3654
9618

LACY
Special weather statement, Sep 9, 11:56 PM CDT, 49 minutes before
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Special weather statement, Sep 9, 11:58 PM CDT, 47 minutes before
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Special weather statement, Sep 10, 12:05 AM CDT, 40 minutes before
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Special weather statement, Sep 10, 12:42 AM CDT, 3 minutes before
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Special weather statement, Sep 10, 12:45 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 9:21 PM CDTSpecial Weather StatementTSAOsage54 min
Sep 9, 9:30 PM CDTSpecial Weather StatementTSAWashington30 min
Sep 9, 9:48 PM CDTSevere Thunderstorm WarningTSAOsage, Pawnee57 min
Sep 9, 10:29 PM CDTSpecial Weather StatementTSACraig, Creek, Nowata, Osage, Ottawa, Washington61 min
Sep 9, 11:15 PM CDTSpecial Weather StatementTSACreek, Okfuskee, Okmulgee, Osage, Rogers, Tulsa and 1 more60 min
Sep 9, 11:18 PM CDTSpecial Weather StatementTSACraig, Nowata, Ottawa, Washington57 min
Sep 9, 11:33 PM CDTSevere Thunderstorm WarningTSACraig27 min
Sep 9, 11:56 PM CDTSpecial Weather StatementTSAMcIntosh, Mayes, Muskogee, Okfuskee, Okmulgee, Rogers and 2 more64 min
Sep 9, 11:58 PM CDTSpecial Weather StatementTSAOttawa32 min
Sep 10, 12:05 AM CDTSpecial Weather StatementTSACraig, Delaware, Ottawa55 min
Sep 10, 12:12 AM CDTSevere Thunderstorm WarningTSAMayes, Rogers, Wagoner33 min
Sep 10, 12:42 AM CDTSpecial Weather StatementTSACherokee, Delaware, Mayes, Wagoner33 min
Sep 10, 1:28 AM CDTSpecial Weather StatementTSAAdair, Haskell, Latimer, Sequoyah32 min
Sep 10, 2:03 AM CDTSpecial Weather StatementTSASequoyah27 min
Sep 10, 1:34 AM CDTSpecial Weather StatementTSABenton, Washington26 min

Nearby

Special Weather Statements in Oklahoma, 2016Every special weather statement 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.