Alert archive / Oklahoma / Special Weather Statements in 2009

Special Weather Statement, NWS Tulsa, OK

July 8, 2009Creek County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jul 8, 2009, 11:13 AM CDT for Creek 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
Jul 8, 2009, 11:13 AM CDT (16:13 UTC)
Expired
Jul 8, 2009, 11:45 AM CDT
In force
32 min
Issued by
NWS Tulsa, OK

County Creek County, OK

The radar

The Tulsa radar (KINX), 56 km from the middle of the area, began a volume at 16:13 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, 4.2 hours before the alert went out and 141 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, Lamont, OK at 12:00Z on 2009-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1059 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, Lamont, OK at 12:00Z on 2009-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.193958Sfc1 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
1059 J/kg
Mixed-layer CIN
-234 J/kg
Mixed-layer LCL
1286 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.0

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 8, 8:33 AM CDT, 2 hours 40 minutes earlier.

Area forecast discussion, Jul 8, 8:33 AM CDT, 2 hours 40 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
833 AM CDT WED JUL 8 2009

.DISCUSSION...
UPDATED TO INCREASE THE AREA OF EXPECTED ISOLATED SHOWERS AND
THUNDERSTORMS TO THE SOUTH. LIKELY WILL UPDATE AGAIN TOWARDS
LATE MORNING TO ADJUST OTHER FORECAST ELEMENTS.

&&

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

SHORT TERM...15
LONG TERM....21
Hazardous weather outlook, Jul 8, 10:54 AM CDT, 19 minutes before
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In the hours before

Special weather statement, Jul 8, 9:19 AM CDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
919 AM CDT WED JUL 8 2009

OKZ054-081500-
OSAGE OK-
919 AM CDT WED JUL 8 2009

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 1000 AM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHEAST OKLAHOMA
     CENTRAL OSAGE

AT 919 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES
EAST OF PAWHUSKA...MOVING SOUTH AT 15 MPH. SOME LOCATIONS THAT WILL
BE AFFECTED BY THIS STORM INCLUDE...PAWHUSKA...WYNONA...BARNSDALL...
PERSHING...TALLANT AND NELAGONEY.

THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
40 MPH.

LAT...LON 3656 9614 3653 9633 3670 9637 3673 9625
TIME...MOT...LOC 1419Z 346DEG 11KT 3668 9629
Special weather statement, Jul 8, 9:21 AM CDT, 1 hour 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
921 AM CDT WED JUL 8 2009

OKZ066-081500-
OKMULGEE OK-
921 AM CDT WED JUL 8 2009

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 1000 AM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHEAST OKLAHOMA
     NORTHERN OKMULGEE

AT 921 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 6 MILES
SOUTHWEST OF HECTORVILLE...MOVING SOUTH AT 15 MPH. SOME LOCATIONS
THAT WILL BE AFFECTED BY THIS STORM INCLUDE...PRESTON AND
HECTORVILLE.

THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
40 MPH.

LAT...LON 3570 9585 3568 9607 3584 9607 3586 9591
TIME...MOT...LOC 1421Z 355DEG 11KT 3580 9601
Special weather statement, Jul 8, 9:23 AM CDT, 1 hour 50 minutes before
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Special weather statement, Jul 8, 10:03 AM CDT, 1 hour 10 minutes before
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Special weather statement, Jul 8, 10:37 AM CDT, 36 minutes before
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Special weather statement, Jul 8, 11:13 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
Jul 8, 6:18 AM CDTSpecial Weather StatementTSATulsa42 min
Jul 8, 6:49 AM CDTSpecial Weather StatementTSATulsa41 min
Jul 8, 7:35 AM CDTSpecial Weather StatementTSATulsa40 min
Jul 8, 8:01 AM CDTSpecial Weather StatementTSAMcIntosh29 min
Jul 8, 9:19 AM CDTSpecial Weather StatementTSAOsage41 min
Jul 8, 9:21 AM CDTSpecial Weather StatementTSAOkmulgee39 min
Jul 8, 9:23 AM CDTSpecial Weather StatementTSAHughes37 min
Jul 8, 10:03 AM CDTSpecial Weather StatementTSATulsa27 min
Jul 8, 10:37 AM CDTSpecial Weather StatementTSATulsa38 min
Jul 8, 12:31 PM CDTSpecial Weather StatementTSACreek44 min
Jul 8, 1:46 PM CDTSpecial Weather StatementTSATulsa29 min
Jul 8, 3:31 PM CDTSpecial Weather StatementTSAChoctaw44 min
Jul 8, 3:41 PM CDTSevere Thunderstorm WarningTSAChoctaw51 min

Nearby

Special Weather Statements in Oklahoma, 2009Every special weather statement in 2009

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.