Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 13, NWS Tulsa, OK

March 1, 2007Haskell County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 1, 2007, 2:57 AM CST for Haskell County, Oklahoma. It was in force for 28 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, 2:57 AM CST (08:57 UTC)
Expired: Mar 1, 2007, 3:25 AM CST
In force: 28 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Haskell County, OK

The radar

The Western Arkansas radar (KSRX), 64 km from the middle of the area, began a volume at 08:59 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, 3:05 AM CST	HAIL 0.88	Keota, 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

Norman, OK (KOUN), launched 00:00Z, 9.0 hours before the alert went out and 212 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: 310 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 1841 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 309 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 6.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 010857
SVRTSA
OKC061-010945-
/O.NEW.KTSA.SV.W.0013.070301T0857Z-070301T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
257 AM CST THU MAR 1 2007

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HASKELL COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 345 AM CST

* AT 254 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL AND WINDS
  TO 60 MPH. THIS STORM WAS LOCATED NEAR LEQUIRE...MOVING NORTHEAST
  AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...STIGLER...
  MCCURTAIN...MC CURTAIN...KEOTA AND TAMAHA.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS.
TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM
WINDOWS.

STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

LAT...LON 3518 9526 3505 9514 3506 9492 3530 9482
      3541 9497

$$

3 follow-up statements

000 
WWUS54 KTSA 010903
SVSTSA

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

OKC061-010945-
/O.CON.KTSA.SV.W.0013.000000T0000Z-070301T0945Z/
HASKELL OK-
303 AM CST THU MAR 1 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CST
FOR HASKELL COUNTY...

AT 303 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL
AND WINDS TO 60 MPH. THIS STORM WAS LOCATED NEAR LEQUIRE...MOVING
NORTHEAST AT 50 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MCCURTAIN...MC
CURTAIN...KANIMA AND KEOTA.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.

STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

LAT...LON 3519 9515 3510 9514 3512 9492 3530 9482
      3537 9490

$$

000 
WWUS54 KTSA 010914
SVSTSA

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

OKC061-010945-
/O.CON.KTSA.SV.W.0013.000000T0000Z-070301T0945Z/
HASKELL OK-
314 AM CST THU MAR 1 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CST
FOR HASKELL COUNTY...

AT 311 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL
AND WINDS TO 60 MPH. THIS STORM WAS LOCATED NEAR MCCURTAIN...MOVING
NORTHEAST AT 50 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...KANIMA AND
KEOTA.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.

STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

LAT...LON 3519 9515 3510 9514 3512 9492 3530 9482
      3537 9490

$$

000 
WWUS54 KTSA 010925
SVSTSA

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

OKC061-010936-
/O.CAN.KTSA.SV.W.0013.000000T0000Z-070301T0945Z/
HASKELL OK-
326 AM CST THU MAR 1 2007

...THE SEVERE THUNDERSTORM WARNING FOR HASKELL COUNTY IS CANCELLED...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THEREFORE THE
SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

LAT...LON 3519 9515 3510 9514 3512 9492 3530 9482
      3537 9490

$$

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, 2:59 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, 3:18 AM CST	Tornado Warning	TSA	LeFlore, Sequoyah	27 min
Mar 1, 3:50 AM CST	Severe Thunderstorm Warning	TSA	Adair	13 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2007 Every severe thunderstorm warning 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.