Alert archive / Arkansas / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

July 8, 2012Madison County, Arkansas

NWS Tulsa, OK issued this special weather statement at Jul 8, 2012, 3:11 PM CDT for Madison 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, 2012, 3:11 PM CDT (20:11 UTC)
Expired: Jul 8, 2012, 3:45 PM CDT
In force: 34 min
Issued by: NWS Tulsa, OK

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 103 km from the middle of the area, began a volume at 20:13 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

Springfield, MO (KSGF), launched 12:00Z, 8.2 hours before the alert went out and 112 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: 661 J/kg
Mixed-layer CIN: -154 J/kg
Mixed-layer LCL: 1477 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: -3 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.

131 
WWUS84 KTSA 082011
SPSTSA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
311 PM CDT SUN JUL 8 2012

ARZ011-082045-
MADISON AR-
311 PM CDT SUN JUL 8 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 345 PM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHWEST ARKANSAS
     SOUTHEASTERN MADISON

AT 311 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 3 MILES WEST OF WEATHERS TO 6 MILES SOUTH OF RED
STAR...MOVING EAST AT 5 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY
THESE STORMS INCLUDE...RED STAR...WEATHERS...PETTIGREW...AURORA...
BOSTON AND WITTER.

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

LAT...LON 3594 9348 3593 9348 3592 9350 3588 9350
      3587 9352 3577 9351 3577 9368 3607 9372
      3604 9344 3597 9345
TIME...MOT...LOC 2011Z 281DEG 5KT 3596 9357 3578 9350

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 7:17 PM CDT	Special Weather Statement	TSA	Ottawa	28 min
Jul 7, 7:41 PM CDT	Special Weather Statement	TSA	Craig, Ottawa	34 min
Jul 7, 7:58 PM CDT	Special Weather Statement	TSA	Craig	32 min
Jul 7, 8:10 PM CDT	Special Weather Statement	TSA	Craig	35 min
Jul 8, 1:17 PM CDT	Special Weather Statement	TSA	Adair	43 min
Jul 8, 2:39 PM CDT	Special Weather Statement	TSA	LeFlore	36 min
Jul 8, 4:07 PM CDT	Special Weather Statement	TSA	Delaware	38 min
Jul 8, 4:10 PM CDT	Special Weather Statement	TSA	Haskell	35 min
Jul 8, 4:26 PM CDT	Special Weather Statement	TSA	Adair	34 min
Jul 8, 4:29 PM CDT	Special Weather Statement	TSA	Pushmataha	31 min
Jul 8, 4:40 PM CDT	Special Weather Statement	TSA	Hughes	35 min
Jul 8, 5:07 PM CDT	Special Weather Statement	TSA	Cherokee	23 min
Jul 8, 5:19 PM CDT	Special Weather Statement	TSA	Adair	26 min
Jul 8, 5:43 PM CDT	Special Weather Statement	TSA	Delaware	32 min
Jul 8, 5:58 PM CDT	Special Weather Statement	TSA	Pittsburg	32 min
Jul 8, 6:02 PM CDT	Special Weather Statement	TSA	Cherokee	28 min
Jul 8, 6:15 PM CDT	Special Weather Statement	TSA	Cherokee	30 min
Jul 8, 6:41 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	49 min
Jul 8, 1:46 PM CDT	Special Weather Statement	TSA	Franklin	44 min
Jul 8, 2:29 PM CDT	Special Weather Statement	TSA	Johnson	31 min
Jul 8, 3:23 PM CDT	Special Weather Statement	TSA	Benton	37 min
Jul 8, 3:58 PM CDT	Special Weather Statement	TSA	Sebastian	32 min
Jul 8, 4:09 PM CDT	Special Weather Statement	TSA	Benton	36 min
Jul 8, 4:21 PM CDT	Special Weather Statement	TSA	Carroll	24 min
Jul 8, 4:24 PM CDT	Severe Thunderstorm Warning	TSA	Carroll	56 min
Jul 8, 4:36 PM CDT	Special Weather Statement	TSA	Madison	24 min
Jul 8, 4:54 PM CDT	Special Weather Statement	TSA	Carroll	36 min
Jul 8, 5:05 PM CDT	Special Weather Statement	TSA	Sebastian	25 min

Nearby

Special Weather Statements in Arkansas, 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.