Alert archive / Arkansas / Special Weather Statements in 2016

Special Weather Statement, NWS Tulsa, OK

July 8, 2016Benton County, Arkansas

NWS Tulsa, OK issued this special weather statement at Jul 8, 2016, 11:41 AM CDT for Benton County, Arkansas. It was in force for 34 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, 2016, 11:41 AM CDT (16:41 UTC)
Expired
Jul 8, 2016, 12:15 PM CDT
In force
34 min
Issued by
NWS Tulsa, OK

County Benton County, AR

The radar

The Tulsa radar (KINX), 104 km from the middle of the area, began a volume at 16:44 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 12:00Z, 4.7 hours before the alert went out and 88 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, Springfield, MO at 12:00Z on 2016-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1814 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, Springfield, MO at 12:00Z on 2016-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 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
1814 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
1253 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.1

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 Jul 8, 10:32 AM CDT, 1 hour 9 minutes earlier.

Area forecast discussion, Jul 8, 10:32 AM CDT, 1 hour 9 minutes before
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Hazardous weather outlook, Jul 8, 7:32 AM CDT, 4 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
732 AM CDT FRI JUL 8 2016

ARZ001-002-010-011-019-020-029-OKZ049-053>076-091000-
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-
732 AM CDT FRI JUL 8 2016

...SEVERE STORM POTENTIAL THIS MORNING... AND AGAIN THIS AFTERNOON
AND EVENING...

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

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORM.
	RISK...ELEVATED.
	AREA...MOST OF EASTERN OKLAHOMA...ALL OF NORTHWEST
           AND WEST CENTRAL ARKANSAS.
	ONSET...ONGOING THROUGH MID MORNING...AND AGAIN THIS AFTERNOON AND
            EVENING.

FLASH FLOOD.
	RISK...LIMITED.
	AREA...NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...THIS AFTERNOON.

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

DANGEROUS HEAT.
	RISK...ELEVATED.
	AREA...SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS.
	ONSET...THIS AFTERNOON.

DISCUSSION... ELEVATED THUNDERSTORMS WERE ONGOING THIS MORNING
ACROSS NORTHEAST OKLAHOMA...MAINLY TO THE NORTHWEST OF INTERSTATE
44. ONE OR TWO STORMS WILL BE CAPABLE OF PRODUCING DAMAGING
STRAIGHTLINE WINDS AND QUARTER SIZE HAIL. ONGOING STORMS ACROSS
NORTHEAST OKLAHOMA WILL DIMINISH BETWEEN MID AND LATE MORNING.

ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
AFTERNOON. LEFTOVER BOUNDARIES FROM MORNING CONVECTION MAY
CONTRIBUTE TO DEVELOPMENT...HOWEVER MOST AFTERNOON AND EVENING
ACTIVITY WILL BE FOCUSED ALONG AN APPROACHING COLD FRONT AND
UPPER LEVEL DISTURBANCE. AMPLE INSTABILITY WILL BE IN PLACE BY
AFTERNOON AND WILL BE FAVORABLE FOR PRODUCING SEVERE WEATHER.
STORMS WILL POSE AN ELEVATED RISK FOR DAMAGING DOWNBURST
WINDS...AND TO A LESSER EXTENT LARGE HAIL. HEAVY RAINFALL IS ALSO
POSSIBLE WITH SLOWER MOVING STORMS...AND MAY LEAD TO LOCALIZED
FLASH FLOODING. STORM CHANCES WILL REMAIN ONGOING
OVERNIGHT...HOWEVER THE THREAT FOR SEVERE WEATHER WILL LIKELY BEGIN
DIMINISHING LATE IN THE EVENING AS DAYTIME HEATING IS LOST.

SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS WILL SEE HOT
CONDITIONS AGAIN TODAY AS THESE AREAS WILL REMAIN AWAY FROM
THE HIGHEST THUNDERSTORM COVERAGE AND THICKER CLOUD COVER.
AFTERNOON HEAT INDEX VALUES BETWEEN 100 AND 105 DEGREES WILL BE
COMMON.

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

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

EXTENDED DISCUSSION...
THUNDERSTORM CHANCES WILL REMAIN ONGOING INTO SATURDAY...WITH
LOWER CHANCES SUNDAY AS FOCUS FOR STORMS BEGINS TO LIFT AWAY FROM
THE REGION. UPPER LEVEL RIDGING IS FORECAST TO BUILD BACK OVER THE
PLAINS NEXT WEEK...WHICH WILL BRING VERY HOT AND HUMID CONDITIONS
BACK TO THE AREA WITH LITTLE CHANCE FOR THUNDERSTORMS.

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

In the hours before

Local storm report, Jul 8, 9:47 AM CDT, 1 hour 54 minutes before
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Special weather statement, Jul 8, 9:47 AM CDT, 1 hour 54 minutes before
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Special weather statement, Jul 8, 10:04 AM CDT, 1 hour 37 minutes before
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Special weather statement, Jul 8, 10:22 AM CDT, 1 hour 19 minutes before
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Local storm report, Jul 8, 11:32 AM CDT, 9 minutes before
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Special weather statement, Jul 8, 11:41 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, 6:31 AM CDTSpecial Weather StatementTSAOsage29 min
Jul 8, 7:02 AM CDTSpecial Weather StatementTSAOsage28 min
Jul 8, 7:25 AM CDTSevere Thunderstorm WarningTSAOsage35 min
Jul 8, 7:49 AM CDTSpecial Weather StatementTSAPawnee26 min
Jul 8, 8:04 AM CDTSevere Thunderstorm WarningTSACreek, Okfuskee, Osage, Pawnee56 min
Jul 8, 8:17 AM CDTSpecial Weather StatementTSAWashington28 min
Jul 8, 8:35 AM CDTSevere Thunderstorm WarningTSACreek, Osage, Pawnee, Tulsa25 min
Jul 8, 8:46 AM CDTSpecial Weather StatementTSANowata29 min
Jul 8, 8:50 AM CDTSevere Thunderstorm WarningTSACreek, Okfuskee55 min
Jul 8, 8:55 AM CDTSpecial Weather StatementTSATulsa35 min
Jul 8, 9:18 AM CDTSpecial Weather StatementTSARogers27 min
Jul 8, 9:32 AM CDTSpecial Weather StatementTSAOkmulgee43 min
Jul 8, 9:47 AM CDTSpecial Weather StatementTSARogers28 min
Jul 8, 10:04 AM CDTSpecial Weather StatementTSARogers26 min
Jul 8, 10:22 AM CDTSpecial Weather StatementTSAMayes, Rogers38 min
Jul 8, 6:03 PM CDTSpecial Weather StatementTSAOkfuskee42 min
Jul 8, 12:03 PM CDTSpecial Weather StatementTSABenton42 min

Nearby

Special Weather Statements in Arkansas, 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.