Alert archive / Arkansas / Tornado Warnings in 2006

Tornado Warning 45, NWS Tulsa, OK

April 6, 2006Crawford County, Arkansas

NWS Tulsa, OK issued this tornado warning at Apr 6, 2006, 8:14 PM CDT for Crawford County, Arkansas. It was in force for 46 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 6, 2006, 8:14 PM CDT (01:14 UTC)
Expired: Apr 6, 2006, 9:00 PM CDT
In force: 46 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Crawford County, AR

The radar

The Western Arkansas radar (KSRX), 39 km from the middle of the area, began a volume at 01:15 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.

What was reported inside it

Time	Report	Where	Remark
Apr 6, 8:32 PM CDT	HAIL 1	Natural Dam, AR
Apr 6, 9:00 PM CDT	HAIL 1	8 N Mountainburg, AR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 6, 4:41 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.2 hours before the alert went out and 147 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: 571 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 665 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 198 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KTSA 070114
TORTSA
ARC033-070200-
/O.NEW.KTSA.TO.W.0045.060407T0114Z-060407T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
814 PM CDT THU APR 6 2006

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  CRAWFORD COUNTY IN NORTHWEST ARKANSAS

* UNTIL 900 PM CDT

* AT 811 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO.  THE LINE
  EXTENDED FROM 8 MILES NORTHWEST OF NATURAL DAM TO 16 MILES
  WEST OF FIGURE FIVE...MOVING NORTHEAST AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...NATURAL
  DAM...LEE CREEK...FIGURE FIVE...CEDARVILLE...RUDY...MOUNTAINBURG
  AND CHESTER.

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS...TAKE COVER NOW IF YOU
WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A
SAFE PLACE

LAT...LON 3574 9448 3544 9444 3553 9412 3576 9402

$$

1 follow-up statement

000 
WWUS54 KTSA 070138
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
838 PM CDT THU APR 6 2006

ARC033-070200-
/O.CON.KTSA.TO.W.0045.000000T0000Z-060407T0200Z/
CRAWFORD AR-
838 PM CDT THU APR 6 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR CRAWFORD
COUNTY...

AT 836 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM LEE CREEK TO
CHESTER...MOVING EAST AT 50 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...CHESTER...MOUNT
GAYLER...MOUNTAINBURG AND LOCKE.

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS - TAKE COVER NOW IF YOU
WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A
SAFE PLACE

LAT...LON 3573 9434 3560 9438 3553 9412 3576 9402

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 8:10 PM CDT	Severe Thunderstorm Warning	TSA	Washington	64 min
Apr 6, 8:42 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	63 min
Apr 6, 8:49 PM CDT	Severe Thunderstorm Warning	TSA	Franklin, Madison	71 min
Apr 6, 8:58 PM CDT	Severe Thunderstorm Warning	TSA	Crawford	27 min
Apr 6, 9:01 PM CDT	Tornado Warning	TSA	Sebastian	29 min

Nearby

Tornado Warnings in Arkansas, 2006 Every tornado warning in 2006 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.