Alert archive / Arkansas / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

July 7, 2012Benton County, Arkansas

NWS Tulsa, OK issued this special weather statement at Jul 7, 2012, 4:31 PM CDT for Benton County, Arkansas. It was in force for 29 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 7, 2012, 4:31 PM CDT (21:31 UTC)
Expired
Jul 7, 2012, 5:00 PM CDT
In force
29 min
Issued by
NWS Tulsa, OK

County Benton County, AR

The radar

The Springfield radar (KSGF), 107 km from the middle of the area, began a volume at 21:34 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, 9.5 hours before the alert went out and 58 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 2012-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1058 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 2012-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
1058 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
2009 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

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 7, 3:41 PM CDT, 50 minutes earlier.

Area forecast discussion, Jul 7, 3:41 PM CDT, 50 minutes before
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Hazardous weather outlook, Jul 7, 1:02 PM CDT, 3 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
102 PM CDT SAT JUL 7 2012

ARZ001-002-010-011-019-020-029-OKZ049-053>076-081000-
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-
102 PM CDT SAT JUL 7 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORM.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND WESTERN ARKANSAS.
	ONSET...THIS AFTERNOON.

DANGEROUS HEAT.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND WESTERN ARKANSAS.
	ONSET..ONGOING.

FIRE WEATHER DANGER.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA.
	ONSET...ONGOING.

DISCUSSION...
EVEN WITH SOME RAINFALL TODAY... CONTINUED DRY CONDITIONS ACROSS
THE REGION WILL CREATE A LIMITED FIRE DANGER. BURN BANS REMAINS IN
PLACE FOR A GROWING NUMBER OF COUNTIES.

AND DESPITE THE RAINFALL... HOT CONDITIONS WILL CONTINUE TODAY.
WITH SCATTERED PRECIPITATION IN THE AREA... ADDED HUMIDITY WILL KEEP
HEAT INDICES HIGH AS WELL.

SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE ACROSS MUCH OF
THE REGION THIS AFTERNOON AND OVERNIGHT. THERE IS A RISK OF
DAMAGING DOWNBURST WINDS WITH ANY OF THE STRONGER STORMS. THIS
RISK WILL PEAK DURING MAXIMUM AFTERNOON HEATING AND WILL TAPER OFF INTO
THIS EVENING.

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

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
SUNDAY THROUGH TUESDAY...THUNDERSTORM POTENTIAL.
WEDNESDAY THROUGH FRIDAY...NO HAZARDS.

EXTENDED DISCUSSION...
A COLD FRONT WILL DROP SOUTH ACROSS THE AREA FROM SUNDAY INTO
MONDAY. THUNDERSTORMS ARE LIKELY TO BE SCATTERED ALONG AND AROUND
THE FRONT ON SUNDAY AND MONDAY. WHILE THE OVERALL PATTERN DOES
NOT FAVOR ORGANIZED SEVERE WEATHER... AN ISOLATED STORM OR TWO
COULD PRODUCE WIND GUSTS TO NEAR SEVERE LEVELS. BY TUESDAY THE BEST
CHANCE OF THUNDERSTORMS WILL BE ACROSS SOUTHEAST OKLAHOMA NEAR THE FRONT.
NO HAZARDS ARE EXPECTED DURING THE LAST HALF OF THE UPCOMING WEEK AS
THE FRONT CLEARS THE AREA AND RESULTS IN SEASONABLE TEMPERATURES.

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

In the hours before

Local storm report, Jul 7, 3:00 PM CDT, 1 hour 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
300 PM CDT SAT JUL 07 2012

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

0235 PM     TSTM WND DMG     FAYETTEVILLE            36.06N 94.16W
07/07/2012                   WASHINGTON         AR   BROADCAST MEDIA

            TREE LIMBS AND POWER LINES DOWN ON WEST DEANE ST.

&&

JBM
Local storm report, Jul 7, 3:04 PM CDT, 1 hour 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
304 PM CDT SAT JUL 07 2012

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

0210 PM     TSTM WND DMG     BARLING                 35.33N 94.30W
07/07/2012                   SEBASTIAN          AR   BROADCAST MEDIA

            LARGE TREE DOWN

&&

JBM
Local storm report, Jul 7, 3:12 PM CDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
312 PM CDT SAT JUL 07 2012

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

0305 PM     TSTM WND DMG     CHARLESTON              35.30N 94.04W
07/07/2012                   FRANKLIN           AR   EMERGENCY MNGR

            POWER LINES AND POLES DOWN ON ARKANSAS HIGHWAY 22.

&&

JBM
Local storm report, Jul 7, 3:28 PM CDT, 1 hour 3 minutes before
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Special weather statement, Jul 7, 4:25 PM CDT, 6 minutes before
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Special weather statement, Jul 7, 4:31 PM 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 6, 9:11 PM CDTSpecial Weather StatementTSAPushmataha49 min
Jul 7, 11:33 AM CDTSpecial Weather StatementTSACraig27 min
Jul 7, 2:36 PM CDTSpecial Weather StatementTSASequoyah39 min
Jul 7, 3:02 PM CDTSevere Thunderstorm WarningTSALeFlore58 min
Jul 7, 3:17 PM CDTSevere Thunderstorm WarningTSALeFlore58 min
Jul 7, 3:56 PM CDTSevere Thunderstorm WarningTSALatimer, LeFlore, Pushmataha64 min
Jul 7, 5:00 PM CDTSpecial Weather StatementTSAPushmataha30 min
Jul 7, 5:14 PM CDTSpecial Weather StatementTSALatimer31 min
Jul 7, 1:07 PM CDTSpecial Weather StatementTSACrawford23 min
Jul 7, 1:27 PM CDTSpecial Weather StatementTSACrawford48 min
Jul 7, 1:52 PM CDTSpecial Weather StatementTSACrawford38 min
Jul 7, 2:08 PM CDTSevere Thunderstorm WarningTSACrawford, Sebastian52 min
Jul 7, 2:22 PM CDTSpecial Weather StatementTSASebastian23 min
Jul 7, 2:28 PM CDTSpecial Weather StatementTSAWashington47 min
Jul 7, 2:44 PM CDTSpecial Weather StatementTSASebastian46 min
Jul 7, 2:50 PM CDTSpecial Weather StatementTSACarroll, Madison40 min
Jul 7, 3:05 PM CDTSevere Thunderstorm WarningTSABenton, Madison, Washington47 min
Jul 7, 3:24 PM CDTSevere Thunderstorm WarningTSABenton, Carroll, Madison, Washington66 min
Jul 7, 4:25 PM CDTSpecial Weather StatementTSACarroll35 min

Nearby

Special Weather Statements in Arkansas, 2012Every 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.