Alert archive / Arkansas / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 106, NWS Tulsa, OK

March 13, 2006Washington County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 13, 2006, 12:03 AM CST for Washington County, Arkansas. It was in force for 42 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: Mar 13, 2006, 12:03 AM CST (06:03 UTC)
Expired: Mar 13, 2006, 12:45 AM CST
In force: 42 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Washington County, AR

The radar

The Western Arkansas radar (KSRX), 78 km from the middle of the area, began a volume at 06:04 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
Mar 12, 9:34 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.1 hours before the alert went out and 109 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: 1549 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1450 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 13.0

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 Mar 12, 11:42 PM CST, 21 minutes earlier.

Area forecast discussion, Mar 12, 11:42 PM CST, 21 minutes before

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Hazardous weather outlook, Mar 12, 12:05 PM CST, 11 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1205 PM CST SUN MAR 12 2006

ARZ001-002-010-011-019-020-029-OKZ049-053>076-131100-
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-
1205 PM CST SUN MAR 12 2006

...A SEVERE WEATHER OUTBREAK IS EXPECTED 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.
TORNADO.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...THIS AFTERNOON.

	AREA AT GREATEST RISK...NORTHWEST AND WEST CENTRAL ARKANSAS.

SEVERE THUNDERSTORM.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...THIS AFTERNOON.

	AREA AT GREATEST RISK...NORTHWEST AND WEST CENTRAL ARKANSAS.

FIRE WEATHER DANGER.
	RISK...SIGNIFICANT...SPREADINDEX=64.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...LATE THIS MORNING.

	AREA AT GREATEST RISK...NORTHEAST OKLAHOMA.

DISCUSSION...
A DRY LINE WAS LOCATED FROM EASTERN KANSAS INTO CENTRAL OKLAHOMA.
STRONG THUNDERSTORMS WERE ALREADY DEVELOPING ALONG THE BOUNDARY
EARLY THIS AFTERNOON. WITH CAPES ON THE ORDER OF 2500 J/KG AND
HELICITIES IN THE RANGE OF 200 M2/S2...SUPERCELLS WITH THE POTENTIAL
TO PRODUCE LARGE HAIL AND TORNADOES ARE EXPECTED TO MOVE ACROSS MUCH
OF THE AREA THIS AFTERNOON AND THIS EVENING.  ONCE STORMS
DEVELOP...THEY WILL RACE TO THE NORTHEAST AT 40 TO 50 MILES AN HOUR.

GIVEN THE WARM TEMPERATURES...STRONG SOUTH WINDS AND DRY
VEGETATION FIRE WEATHER WILL ALSO BE A CONCERN TODAY. THE MOST
DANGEROUS AREA FOR FIRES WILL BE NORTHEAST OKLAHOMA.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
MONDAY...VERY HIGH FIRE WEATHER POTENTIAL.
TUESDAY...NO HAZARDS.
WEDNESDAY...THUNDERSTORM POTENTIAL.
THURSDAY...NO HAZARDS.
FRIDAY...NO HAZARDS.
SATURDAY...THUNDERSTORM POTENTIAL.

EXTENDED DISCUSSION...
A COLD FRONT WILL HAVE PASSED THROUGH THE AREA BY MONDAY MORNING.
HIGH PRESSURE WILL PUSH INTO THE AREA AND REMAIN AT LEAST THROUGH
THE MIDDLE OF THE UPCOMING WEEK. FIRE WEATHER WILL REMAIN A
CONCERN WITH THE MOST LIKELY BAD DAY BEING MONDAY WITH THE NORTH
WINDS AND LOWER HUMIDITIES FOUND BEHIND THE FRONT.

THUNDERSTORMS RETURN TO THE FORECAST DUE TO RETURN FLOW OF WARM
AND MOIST AIR. THE THUNDERSTORMS ENTER THE FORECAST AGAIN NEXT
WEEKEND.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL TABULAR AND GRAPHICAL
INFORMATION.

In the hours before

Special weather statement, Mar 12, 10:59 PM CST, 1 hour 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1059 PM CST SUN MAR 12 2006

OKZ061-130545-
ROGERS OK-
1059 PM CST SUN MAR 12 2006

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 1145 PM CST
FOR THE FOLLOWING COUNTY:

IN NORTHEAST OKLAHOMA
     ROGERS

AT 1059 PM CST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3
MILES NORTHWEST OF VERDIGRIS...MOVING NORTHEAST AT 55 MPH. SOME
LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE...CLAREMORE...
CATOOSA...VERDIGRIS...TIAWAH...FOYIL...BUSHYHEAD AND CHELSEA.

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

Local storm report, Mar 12, 11:08 PM CST, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1108 PM CST SUN MAR 12 2006

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

1105 PM     HAIL             CLAREMORE               36.31N 95.62W
03/12/2006  E0.88 INCH       ROGERS             OK   AMATEUR RADIO

&&

SFP

Local storm report, Mar 12, 11:16 PM CST, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1116 PM CST SUN MAR 12 2006

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

1045 PM     TORNADO          5 NW EUREKA SPRINGS     36.45N 93.80W
03/12/2006                   CARROLL            AR   LAW ENFORCEMENT

&&

JDS

Local storm report, Mar 12, 11:24 PM CST, 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1124 PM CST SUN MAR 12 2006

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

1118 PM     HAIL             COMMERCE                36.93N 94.87W
03/12/2006  E0.75 INCH       OTTAWA             OK   LAW ENFORCEMENT

&&

SFP

Local storm report, Mar 12, 11:33 PM CST, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1133 PM CST SUN MAR 12 2006

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

0929 PM     TORNADO          2 S LEACH               36.18N 94.92W
03/12/2006                   DELAWARE           OK   TRAINED SPOTTER

            HOMES HEAVILY DAMAGED...CARS BLOWN OFF CHEROKEE
            TURNPIKE...TREES AND POWER LINES DOWN.

&&

JDS

Local storm report, Mar 12, 11:34 PM CST, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1134 PM CST SUN MAR 12 2006

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

1120 PM     HAIL             PICHER                  36.99N 94.83W
03/12/2006  E1.00 INCH       OTTAWA             OK   LAW ENFORCEMENT

&&

SFP

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 6:24 PM CST	Severe Thunderstorm Warning	TSA	Nowata, Washington	36 min
Mar 12, 6:39 PM CST	Severe Thunderstorm Warning	TSA	Okfuskee	51 min
Mar 12, 6:47 PM CST	Severe Thunderstorm Warning	TSA	Creek, Tulsa	58 min
Mar 12, 6:55 PM CST	Severe Thunderstorm Warning	TSA	Nowata, Washington	50 min
Mar 12, 6:56 PM CST	Severe Thunderstorm Warning	TSA	Osage	49 min
Mar 12, 7:06 PM CST	Tornado Warning	TSA	Nowata	24 min
Mar 12, 7:15 PM CST	Severe Thunderstorm Warning	TSA	Rogers	60 min
Mar 12, 7:16 PM CST	Severe Thunderstorm Warning	TSA	Okmulgee	59 min
Mar 12, 7:24 PM CST	Tornado Warning	TSA	Nowata	36 min
Mar 12, 7:35 PM CST	Severe Thunderstorm Warning	TSA	Wagoner	70 min
Mar 12, 7:39 PM CST	Severe Thunderstorm Warning	TSA	Tulsa	35 min
Mar 12, 7:41 PM CST	Severe Thunderstorm Warning	TSA	Creek	12 min
Mar 12, 7:46 PM CST	Severe Thunderstorm Warning	TSA	Craig	59 min
Mar 12, 7:57 PM CST	Severe Thunderstorm Warning	TSA	Mayes	63 min
Mar 12, 8:07 PM CST	Severe Thunderstorm Warning	TSA	Rogers	53 min
Mar 12, 8:21 PM CST	Tornado Warning	TSA	Wagoner	44 min
Mar 12, 8:21 PM CST	Tornado Warning	TSA	Craig, Mayes	24 min
Mar 12, 8:27 PM CST	Tornado Warning	TSA	Rogers	22 min
Mar 12, 8:33 PM CST	Severe Thunderstorm Warning	TSA	Ottawa	57 min
Mar 12, 8:40 PM CST	Tornado Warning	TSA	Delaware	50 min
Mar 12, 8:41 PM CST	Tornado Warning	TSA	Craig	14 min
Mar 12, 8:41 PM CST	Tornado Warning	TSA	Mayes	49 min
Mar 12, 8:46 PM CST	Tornado Warning	TSA	Cherokee	59 min
Mar 12, 8:59 PM CST	Tornado Warning	TSA	Ottawa	22 min
Mar 12, 9:15 PM CST	Tornado Warning	TSA	Adair	29 min
Mar 12, 9:22 PM CST	Tornado Warning	TSA	Delaware	33 min
Mar 12, 10:32 PM CST	Severe Thunderstorm Warning	TSA	Craig, Nowata	44 min
Mar 12, 10:50 PM CST	Severe Thunderstorm Warning	TSA	Ottawa	39 min
Mar 12, 11:04 PM CST	Severe Thunderstorm Warning	TSA	Mayes, Rogers	56 min
Mar 12, 11:26 PM CST	Severe Thunderstorm Warning	TSA	Craig	34 min
Mar 12, 11:31 PM CST	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	59 min
Mar 12, 11:57 PM CST	Severe Thunderstorm Warning	TSA	Adair	63 min
Mar 13, 12:21 AM CST	Severe Thunderstorm Warning	TSA	Haskell	54 min
Mar 13, 12:23 AM CST	Severe Thunderstorm Warning	TSA	Muskogee	16 min
Mar 13, 12:34 AM CST	Severe Thunderstorm Warning	TSA	Sequoyah	71 min
Mar 13, 12:51 AM CST	Severe Thunderstorm Warning	TSA	Adair	27 min
Mar 13, 12:54 AM CST	Severe Thunderstorm Warning	TSA	LeFlore	81 min
Mar 13, 12:58 AM CST	Severe Thunderstorm Warning	TSA	Pushmataha	77 min
Mar 13, 2:13 AM CST	Severe Thunderstorm Warning	TSA	LeFlore	31 min
Mar 12, 9:27 PM CST	Tornado Warning	TSA	Benton	63 min
Mar 12, 10:13 PM CST	Tornado Warning	TSA	Carroll	62 min
Mar 12, 10:17 PM CST	Tornado Warning	TSA	Benton	33 min
Mar 13, 12:43 AM CST	Tornado Warning	TSA	Washington	62 min
Mar 13, 1:06 AM CST	Severe Thunderstorm Warning	TSA	Carroll, Madison	54 min
Mar 13, 1:07 AM CST	Severe Thunderstorm Warning	TSA	Crawford	68 min
Mar 13, 1:42 AM CST	Severe Thunderstorm Warning	TSA	Sebastian	63 min
Mar 13, 1:52 AM CST	Severe Thunderstorm Warning	TSA	Franklin	54 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2006 Every severe thunderstorm warning in 2006

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.