Alert archive / Oklahoma / Tornado Warnings in 2008

Tornado Warning 73, NWS Tulsa, OK

May 9, 2008Nowata County, Rogers County, Washington County, Oklahoma

NWS Tulsa, OK issued this tornado warning at May 9, 2008, 1:50 AM CDT for Nowata County, Rogers County, Washington County, Oklahoma. It was in force for 37 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: May 9, 2008, 1:50 AM CDT (06:50 UTC)
Expired: May 9, 2008, 2:27 AM CDT
In force: 37 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Nowata County, OK, Rogers County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 41 km from the middle of the area, began a volume at 06:50 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
May 9, 2:02 AM CDT	HAIL 1	Talala, 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
May 8, 8:08 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 9, 1:21 AM CDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 6.8 hours before the alert went out and 166 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: 116 J/kg
Mixed-layer CIN: -321 J/kg
Mixed-layer LCL: 1452 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KTSA 090650
TORTSA
OKC105-131-147-090745-
/O.NEW.KTSA.TO.W.0073.080509T0650Z-080509T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
150 AM CDT FRI MAY 9 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN NOWATA COUNTY IN NORTHEAST OKLAHOMA
  NORTHERN ROGERS COUNTY IN NORTHEAST OKLAHOMA
  WASHINGTON COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 245 AM CDT

* AT 145 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 16 MILES WEST OF
  TALALA...MOVING EAST AT 35 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...TALALA...
  OOLOGAH...WATOVA...FOYIL AND NEW ALLUWE.

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 3660 9543 3634 9551 3647 9589 3671 9584
TIME...MOT...LOC 0650Z 276DEG 33KT 3655 9592

$$

3 follow-up statements

000 
WWUS54 KTSA 090708
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
208 AM CDT FRI MAY 9 2008

OKC147-090718-
/O.CAN.KTSA.TO.W.0073.000000T0000Z-080509T0745Z/
WASHINGTON OK-
208 AM CDT FRI MAY 9 2008

...THE TORNADO WARNING FOR WASHINGTON COUNTY IS CANCELLED...

LAT...LON 3660 9545 3659 9543 3634 9551 3641 9566
      3645 9581 3667 9569
TIME...MOT...LOC 0708Z 302DEG 57KT 3649 9568

$$

OKC105-131-090745-
/O.CON.KTSA.TO.W.0073.000000T0000Z-080509T0745Z/
ROGERS OK-NOWATA OK-
208 AM CDT FRI MAY 9 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR SOUTHERN
NOWATA AND NORTHERN ROGERS COUNTIES...

AT 207 AM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR TALALA...MOVING SOUTHEAST AT 65 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...FOYIL AND
BUSHYHEAD.

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 3660 9545 3659 9543 3634 9551 3641 9566
      3645 9581 3667 9569
TIME...MOT...LOC 0708Z 302DEG 57KT 3649 9568

$$

000 
WWUS54 KTSA 090715
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
214 AM CDT FRI MAY 9 2008

OKC105-090724-
/O.CAN.KTSA.TO.W.0073.000000T0000Z-080509T0745Z/
NOWATA OK-
214 AM CDT FRI MAY 9 2008

...THE TORNADO WARNING FOR SOUTHERN NOWATA COUNTY IS CANCELLED...

LAT...LON 3660 9545 3659 9543 3634 9551 3641 9566
      3645 9576 3660 9572
TIME...MOT...LOC 0714Z 307DEG 48KT 3642 9559

$$

OKC131-090745-
/O.CON.KTSA.TO.W.0073.000000T0000Z-080509T0745Z/
ROGERS OK-
214 AM CDT FRI MAY 9 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR NORTHERN
ROGERS COUNTY...

AT 211 AM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR OOLOGAH...MOVING SOUTHEAST AT 45 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...FOYIL AND
BUSHYHEAD.

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 3660 9545 3659 9543 3634 9551 3641 9566
      3645 9576 3660 9572
TIME...MOT...LOC 0714Z 307DEG 41KT 3642 9559

$$

000 
WWUS54 KTSA 090727
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
227 AM CDT FRI MAY 9 2008

OKC131-090737-
/O.CAN.KTSA.TO.W.0073.000000T0000Z-080509T0745Z/
ROGERS OK-
227 AM CDT FRI MAY 9 2008

...THE TORNADO WARNING FOR NORTHERN ROGERS COUNTY IS CANCELLED...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA AND WEAKENED BELOW
SEVERE LIMITS...THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 5 AM.

LAT...LON 3660 9545 3659 9543 3634 9551 3641 9566
      3645 9576 3660 9572
TIME...MOT...LOC 0727Z 307DEG 41KT 3642 9546

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 12:17 AM CDT	Severe Thunderstorm Warning	TSA	Osage	73 min
May 9, 1:12 AM CDT	Tornado Warning	TSA	Osage, Washington	48 min
May 9, 1:41 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	31 min
May 9, 2:14 AM CDT	Special Weather Statement	TSA	Craig, Ottawa	61 min
May 9, 2:22 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Rogers	35 min
May 9, 2:53 AM CDT	Special Weather Statement	TSA	Delaware	67 min

Nearby

Tornado Warnings in Oklahoma, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.