Alert archive / Arkansas / Tornado Warnings in 2007

Tornado Warning 4, NWS Tulsa, OK

March 1, 2007Franklin County, Arkansas

NWS Tulsa, OK issued this tornado warning at Mar 1, 2007, 3:47 AM CST for Franklin County, Arkansas. It was in force for 58 min. 4 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: Mar 1, 2007, 3:47 AM CST (09:47 UTC)
Expired: Mar 1, 2007, 4:45 AM CST
In force: 58 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Franklin County, AR

The radar

The Western Arkansas radar (KSRX), 58 km from the middle of the area, began a volume at 09:49 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
Mar 1, 4:02 AM CST	HAIL 1.5	Mulberry, AR
Mar 1, 4:05 AM CST	HAIL 0.88	1 E Mulberry, AR
Mar 1, 4:17 AM CST	HAIL 0.88	3 Ne Mulberry, AR
Mar 1, 4:26 AM CST	HAIL 0.75	10 N Ozark, 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
Mar 1, 1:32 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 9.8 hours before the alert went out and 139 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: 283 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1189 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 148 m²/s²
0-3 km storm-relative helicity: 243 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KTSA 010947
TORTSA
ARC047-011045-
/O.NEW.KTSA.TO.W.0004.070301T0947Z-070301T1045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
347 AM CST THU MAR 1 2007

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 445 AM CST

* AT 347 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 22 MILES
  SOUTHWEST OF FERN...MOVING NORTHEAST AT 55 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...FERN AND CASS.

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS

LAT...LON 3577 9394 3565 9406 3538 9409 3557 9369
      3577 9367

$$

2 follow-up statements

000 
WWUS54 KTSA 011019
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
418 AM CST THU MAR 1 2007

ARC047-011045-
/O.CON.KTSA.TO.W.0004.000000T0000Z-070301T1045Z/
FRANKLIN AR-
418 AM CST THU MAR 1 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM CST FOR FRANKLIN
COUNTY...

AT 415 AM CST...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS 
LOCATED NEAR JETHRO...MOVING EAST AT 50 MPH. NICKEL SIZE HAIL HAS 
BEEN REPORTED WITH THIS STORM.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...CASS...
REDDING...MOUNTAIN TOP AND TAFT.

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 3577 9394 3565 9406 3547 9406 3549 9390
      3557 9369 3577 9367

$$

000 
WWUS54 KTSA 011039
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
439 AM CST THU MAR 1 2007

ARC047-011049-
/O.EXP.KTSA.TO.W.0004.000000T0000Z-070301T1045Z/
FRANKLIN AR-
439 AM CST THU MAR 1 2007

...THE TORNADO WARNING FOR FRANKLIN COUNTY WILL BE ALLOWED TO 
EXPIRE AT 445 AM CST...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THEREFORE THE
TORNADO WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3577 9394 3565 9406 3547 9406 3549 9390
      3557 9369 3577 9367

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 1, 2:30 AM CST	Severe Thunderstorm Warning	TSA	Benton	41 min
Mar 1, 3:00 AM CST	Severe Thunderstorm Warning	TSA	Washington	45 min
Mar 1, 3:27 AM CST	Tornado Warning	TSA	Crawford, Sebastian	48 min
Mar 1, 3:40 AM CST	Severe Thunderstorm Warning	TSA	Benton	80 min
Mar 1, 4:03 AM CST	Severe Thunderstorm Warning	TSA	Carroll, Madison	57 min
Mar 1, 4:08 AM CST	Severe Thunderstorm Warning	TSA	Sebastian	24 min
Mar 1, 4:13 AM CST	Tornado Warning	TSA	Carroll	28 min
Mar 1, 4:44 AM CST	Severe Thunderstorm Warning	TSA	Washington	21 min
Mar 1, 4:50 AM CST	Severe Thunderstorm Warning	TSA	Franklin	36 min

Nearby

Tornado Warnings in Arkansas, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.