Alert archive / Oklahoma / Tornado Warnings in 2007

Tornado Warning 2, NWS Tulsa, OK

March 1, 2007LeFlore County, Sequoyah County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Mar 1, 2007, 3:18 AM CST for LeFlore County, Sequoyah County, Oklahoma. It was in force for 27 min. 1 report 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, 3:18 AM CST (09:18 UTC)
Expired: Mar 1, 2007, 3:45 AM CST
In force: 27 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

Counties LeFlore County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 23 km from the middle of the area, began a volume at 09:20 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
Mar 1, 3:28 AM CST	HAIL 0.75	Moffett, OK

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, 9.3 hours before the alert went out and 191 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 010918
TORTSA
OKC079-135-010945-
/O.NEW.KTSA.TO.W.0002.070301T0918Z-070301T0945Z/

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

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA
  NORTHERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 345 AM CST

* AT 316 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES
  NORTHWEST OF SPIRO...MOVING NORTHEAST AT 60 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...POCOLA...
  ROLAND...ARKOMA AND MOFFETT.

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 3534 9475 3517 9466 3524 9446 3545 9444

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 1, 12:35 AM CST	Severe Thunderstorm Warning	TSA	Osage, Pawnee	55 min
Mar 1, 1:00 AM CST	Severe Thunderstorm Warning	TSA	Tulsa	60 min
Mar 1, 2:05 AM CST	Severe Thunderstorm Warning	TSA	Rogers, Wagoner	24 min
Mar 1, 2:09 AM CST	Severe Thunderstorm Warning	TSA	Pittsburg	36 min
Mar 1, 2:15 AM CST	Severe Thunderstorm Warning	TSA	Craig, Mayes	60 min
Mar 1, 2:24 AM CST	Severe Thunderstorm Warning	TSA	Sequoyah	30 min
Mar 1, 2:43 AM CST	Severe Thunderstorm Warning	TSA	Wagoner	32 min
Mar 1, 2:47 AM CST	Severe Thunderstorm Warning	TSA	Cherokee, Delaware	58 min
Mar 1, 2:57 AM CST	Severe Thunderstorm Warning	TSA	Haskell	28 min
Mar 1, 2:59 AM CST	Severe Thunderstorm Warning	TSA	LeFlore	61 min
Mar 1, 3:00 AM CST	Severe Thunderstorm Warning	TSA	Adair	45 min
Mar 1, 3:16 AM CST	Severe Thunderstorm Warning	TSA	Sequoyah	44 min
Mar 1, 3:50 AM CST	Severe Thunderstorm Warning	TSA	Adair	13 min

Nearby

Tornado Warnings in Oklahoma, 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.