Alert archive / Arkansas / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 28, NWS Tulsa, OK

April 30, 20104 counties in Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 30, 2010, 2:40 PM CDT for 4 counties in Arkansas. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 30, 2010, 2:40 PM CDT (19:40 UTC)
Expired: Apr 30, 2010, 3:45 PM CDT
In force: 65 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Crawford County, AR, Franklin County, AR, Madison County, AR, Washington County, AR

The radar

The Western Arkansas radar (KSRX), 62 km from the middle of the area, began a volume at 19:41 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 30, 1:46 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.7 hours before the alert went out and 127 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: 217 J/kg
Mixed-layer CIN: -186 J/kg
Mixed-layer LCL: 903 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 250 m²/s²
0-3 km storm-relative helicity: 221 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 30, 12:09 PM CDT, 2 hours 31 minutes earlier.

Area forecast discussion, Apr 30, 12:09 PM CDT, 2 hours 31 minutes before

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Hazardous weather outlook, Apr 30, 1:03 PM CDT, 1 hour 37 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
103 PM CDT FRI APR 30 2010

ARZ001-002-010-011-019-020-029-OKZ049-053>076-011000-
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-
1250 PM CDT FRI APR 30 2010

...STRONG TO SEVERE THUNDERSTORMS REMAIN POSSIBLE TODAY...

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

.DAY ONE...TODAY AND TONIGHT.
TORNADO.
	RISK...LIMITED.
	AREA...EAST OF A BENTONVILLE TO HUGO LINE.
	ONSET...AFTER 2 PM.

SEVERE THUNDERSTORM.
	RISK...ELEVATED.
	AREA...FAR SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...AFTER 2PM.

DISCUSSION...
SHOWERS AND THUNDERSTORMS HAVE ACCOMPANIED A SLOW MOVING COLD
FRONT AS IT HAS TRUDGED SOUTHEAST ACROSS NORTHEAST OKLAHOMA TODAY.
SOUTHEAST OF THE AREA OF PRECIPITATION THE ATMOSPHERE REMAINS
RELATIVELY UNDISTURBED. CURRENTLY... AT EARLY AFTERNOON...
TEMPERATURES ACROSS THIS AREA OF CONCERN ARE APPROACHING OR HAVE
EXCEEDED 80 DEGREES. DEWPOINTS ARE IN THE HIGH 60S AND LOWER 70S.
THIS AREA WILL BE SUSCEPTIBLE TO DEVELOPMENT OF STRONG TO SEVERE
THUNDERSTORMS LATER THIS AFTERNOON. ALL MODES OF SEVERE WEATHER
WILL BE POSSIBLE... INCLUDING A LIMITED CHANCE FOR TORNADOES.

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

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
SATURDAY...SEVERE THUNDERSTORM POTENTIAL.
SUNDAY...NO HAZARDS.
MONDAY...THUNDERSTORM POTENTIAL.
TUESDAY...HIGH WIND POTENTIAL.
WEDNESDAY...HIGH WIND POTENTIAL.
THURSDAY...HIGH WIND POTENTIAL.

EXTENDED DISCUSSION...
AS THE FRONT REMAINS RELATIVELY STATIONARY ACROSS THE REGION... SEVERE
THUNDERSTORM CHANCES WILL CONTINUE INTO SATURDAY OVER FAR EASTERN
OKLAHOMA AND WESTERN ARKANSAS. THE WEATHER PATTERN ALOFT WILL
CONTINUE TO SUPPORT SCATTERED THUNDERSTORM CHANCES THROUGH
MONDAY... THOUGH THE RISK OF SEVERE WEATHER WILL DECREASE AS THE
COLD FRONT EVENTUALLY PUSHES FURTHER SOUTH. BREEZY CONDITIONS
WILL RETURN NEXT WEEK WITH SOUTHERLY WINDS INCREASING ALONG WITH
WARMER TEMPERATURES.

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

In the hours before

Special weather statement, Apr 30, 11:54 AM CDT, 2 hours 46 minutes before

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Special weather statement, Apr 30, 1:10 PM CDT, 1 hour 30 minutes before

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Special weather statement, Apr 30, 1:40 PM CDT, 1 hour before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
140 PM CDT FRI APR 30 2010

OKZ057-058-061>063-301915-
CRAIG OK-DELAWARE OK-MAYES OK-OTTAWA OK-ROGERS OK-
140 PM CDT FRI APR 30 2010

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 215 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     NORTHEASTERN ROGERS...NORTHWESTERN DELAWARE...CRAIG...SOUTHERN
     OTTAWA AND NORTHEASTERN MAYES

AT 140 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTHWEST
OF ADAIR...MOVING NORTHEAST AT 65 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...CLEORA...BERNICE...MIAMI...AFTON...
FAIRLAND...NARCISSA...WYANDOTTE...VINITA...KETCHUM...BIG CABIN...
WHITE OAK...BLUEJACKET...WELCH...ADAIR AND PENSACOLA.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 50 MPH.

LAT...LON 3689 9479 3668 9462 3637 9526 3651 9539
      3698 9521
TIME...MOT...LOC 1840Z 222DEG 57KT 3652 9524

Special weather statement, Apr 30, 1:59 PM CDT, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
159 PM CDT FRI APR 30 2010

OKZ049-053-301930-
CHOCTAW OK-PUSHMATAHA OK-
159 PM CDT FRI APR 30 2010

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 230 PM CDT
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     NORTHWESTERN CHOCTAW AND SOUTHWESTERN PUSHMATAHA

AT 159 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 10 MILES SOUTHWEST
OF DARWIN...MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...KENT...ANTLERS...RATTAN...MOYERS...
KOSOMA AND KELLOND.

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

LAT...LON 3407 9595 3412 9595 3416 9600 3417 9599
      3417 9579 3451 9579 3452 9578 3452 9571
      3421 9531 3402 9590
TIME...MOT...LOC 1859Z 228DEG 37KT 3415 9589

Special weather statement, Apr 30, 2:16 PM CDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
216 PM CDT FRI APR 30 2010

ARZ001-301945-
BENTON AR-
216 PM CDT FRI APR 30 2010

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 245 PM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHWEST ARKANSAS
     CENTRAL BENTON

AT 217 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTHEAST
OF SPRINGTOWN...MOVING NORTHEAST AT 50 MPH. SOME LOCATIONS THAT WILL
BE AFFECTED BY THIS STORM INCLUDE...BENTONVILLE...GRAVETTE...PEA
RIDGE...SPRINGTOWN...HIGHFILL...CAVE SPRINGS...DECATUR...HIWASSE AND
BELLA VISTA.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS STORM
WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 40 MPH. RESIDENTS IN THESE
AREAS SHOULD REMAIN ALERT IN CASE THE SIGNIFICANT WEATHER ADVISORY IS
UPGRADED TO A WARNING.

LAT...LON 3621 9427 3629 9454 3650 9444 3649 9394
TIME...MOT...LOC 1917Z 217DEG 43KT 3632 9438

Special weather statement, Apr 30, 2:28 PM CDT, 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
228 PM CDT FRI APR 30 2010

OKZ049-073-075-076-302015-
LATIMER OK-LE FLORE OK-PITTSBURG OK-PUSHMATAHA OK-
228 PM CDT FRI APR 30 2010

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 315 PM CDT
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     SOUTHWESTERN LE FLORE...SOUTHEASTERN PITTSBURG...PUSHMATAHA AND
     LATIMER

AT 228 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER KOSOMA...
MOVING NORTHEAST AT 45 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY
THIS STORM INCLUDE...WILBURTON...YANUSH...BENGAL...DAMON...RED OAK...
WHITESBORO...TALIHINA...FANSHAWE...CLAYTON...MOYERS...KOSOMA...
SNOW...NASHOBA...STANLEY...TUSKAHOMA...KIAMICHI...ALBION AND DUNBAR.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND WIND
GUSTS TO 50 MPH.

LAT...LON 3425 9561 3439 9576 3501 9528 3496 9484
      3453 9478 3450 9486 3451 9504 3444 9504
TIME...MOT...LOC 1928Z 227DEG 40KT 3438 9560

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 3:33 AM CDT	Wind Advisory	TSA	Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more	9 hr
Apr 30, 7:31 AM CDT	Special Weather Statement	TSA	Kay	29 min
Apr 30, 7:56 AM CDT	Special Weather Statement	TSA	Osage	34 min
Apr 30, 8:09 AM CDT	Special Weather Statement	TSA	Osage	21 min
Apr 30, 8:11 AM CDT	Special Weather Statement	TSA	Osage	49 min
Apr 30, 8:28 AM CDT	Special Weather Statement	TSA	Nowata, Rogers	47 min
Apr 30, 8:31 AM CDT	Special Weather Statement	TSA	Nowata, Rogers	44 min
Apr 30, 9:17 AM CDT	Special Weather Statement	TSA	Osage	43 min
Apr 30, 11:54 AM CDT	Special Weather Statement	TSA	Okfuskee	36 min
Apr 30, 1:10 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	35 min
Apr 30, 1:26 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, McIntosh, Muskogee, Wagoner	64 min
Apr 30, 1:40 PM CDT	Special Weather Statement	TSA	Craig, Ottawa	35 min
Apr 30, 1:59 PM CDT	Special Weather Statement	TSA	Pushmataha	31 min
Apr 30, 2:11 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, McIntosh, Muskogee, Sequoyah	64 min
Apr 30, 2:28 PM CDT	Special Weather Statement	TSA	Latimer, Pushmataha	47 min
Apr 30, 2:42 PM CDT	Special Weather Statement	TSA	Haskell	48 min
Apr 30, 2:44 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pittsburg, Pushmataha	46 min
Apr 30, 2:59 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pushmataha	46 min
Apr 30, 3:08 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Haskell, LeFlore, Sequoyah	30 min
Apr 30, 3:50 PM CDT	Special Weather Statement	TSA	Sequoyah	40 min
Apr 30, 3:55 PM CDT	Severe Thunderstorm Warning	TSA	Adair, LeFlore, Sequoyah	50 min
Apr 30, 5:05 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Pushmataha	40 min
Apr 30, 2:16 PM CDT	Special Weather Statement	TSA	Benton	29 min
Apr 30, 2:34 PM CDT	Severe Thunderstorm Warning	TSA	Benton	11 min
Apr 30, 2:52 PM CDT	Special Weather Statement	TSA	Benton	38 min
Apr 30, 3:04 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Crawford, Madison, Washington	56 min
Apr 30, 3:21 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll	22 min
Apr 30, 3:23 PM CDT	Special Weather Statement	TSA	Sebastian	22 min
Apr 30, 3:56 PM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison	49 min
Apr 30, 4:42 PM CDT	Severe Thunderstorm Warning	TSA	Madison, Washington	48 min
Apr 30, 5:19 PM CDT	Special Weather Statement	TSA	Carroll	26 min
Apr 30, 5:26 PM CDT	Special Weather Statement	TSA	Madison	34 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2010 Every severe thunderstorm warning in 2010

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.