Alert archive / Oklahoma / Tornado Watches in 2006
Tornado Watch 40
The Storm Prediction Center issued this tornado watch at Mar 8, 2006, 4:17 PM CST for 27 counties in Oklahoma. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 8, 2006, 4:17 PM CST (22:17 UTC)
- Expired
- Mar 8, 2006, 8:27 PM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 27 counties
Cherokee County, OK, Cleveland County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Hughes County, OK, Lincoln County, OK, Logan County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 41 km from the middle of the area, began a volume at 22:20 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.
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Lamont, OK (KLMN), launched 12:00Z, 10.3 hours before the alert went out and 138 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.
- Mixed-layer CAPE
- 477 J/kg
- Mixed-layer CIN
- -151 J/kg
- Mixed-layer LCL
- 1092 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 312 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 082217
SEL0
SPC WW 082217
OKZ000-090400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 40
NWS STORM PREDICTION CENTER NORMAN OK
415 PM CST WED MAR 8 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND EASTERN OKLAHOMA
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 415 PM UNTIL
1000 PM CST.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE MILES
EAST AND WEST OF A LINE FROM 35 MILES NORTHWEST OF GROVE OKLAHOMA
TO 45 MILES SOUTH OF CHANDLER OKLAHOMA. FOR A COMPLETE DEPICTION
OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS
WOU0).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
OTHER WATCH INFORMATION...CONTINUE...WW 39...
DISCUSSION...RAPIDLY DEVELOPING LINE OF STRONG/SEVERE STORMS ARE
OCCURRING ON THE SURFACE DRYLINE AT THIS TIME. AIR MASS SEEMS TO BE
UNCAPPED ALLOWING CONVECTION TO DEVELOP IN INSTABILITY BETWEEN
1000-1500 J/KG OF MLCAPE. PRESENCE OF DEEP LAYER SHEAR OF 50-55 KT
SUPPORTS SUPERCELLS THAT CAN PRODUCE LARGE HAIL AND ISOLATED
TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 24035.
...MCCARTHYSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 7:34 PM CST | Severe Thunderstorm Watch | SPC | Barton, Bates, Cass, Cedar, Clay, Dade and 9 more | 7 hr |
| Mar 7, 9:23 PM CST | Mesoscale Discussion | SPC | Audrain, Bates, Boone, Buchanan, Caldwell, Callaway and 25 more | 2 hr |
| Mar 8, 11:41 AM CST | Mesoscale Discussion | SPC | Andrew, Buchanan, Caldwell, Carroll, Cass, Chariton and 18 more | 3 hr |
| Mar 8, 12:25 PM CST | Mesoscale Discussion | SPC | Butler, Dunklin, New Madrid, Pemiscot, Ripley, Scott and 1 more | 2 hr |
| Mar 8, 12:33 PM CST | Tornado Watch | SPC | Andrew, Barton, Bates, Buchanan, Caldwell, Carroll and 22 more | 7 hr |
| Mar 8, 3:11 PM CST | Mesoscale Discussion | SPC | Andrew, Barton, Bates, Buchanan, Caldwell, Carroll and 16 more | 94 min |
| Mar 8, 4:46 PM CST | Severe Thunderstorm Watch | SPC | Adair, Harrison, Mercer, Putnam, Schuyler, Scotland and 1 more | 5 hr |
| Mar 7, 9:48 PM CST | Mesoscale Discussion | SPC | Craig, Garfield, Grant, Kay, Noble, Nowata and 5 more | 87 min |
| Mar 8, 9:32 AM CST | Mesoscale Discussion | SPC | Choctaw, Latimer, LeFlore, McCurtain, Pushmataha | 58 min |
| Mar 8, 1:53 PM CST | Mesoscale Discussion | SPC | Cleveland, Cotton, Garvin, Grady, Jefferson, McClain and 1 more | 2 hr |
| Mar 8, 4:10 PM CST | Mesoscale Discussion | SPC | Cherokee, Cleveland, Craig, Creek, Delaware, Lincoln and 16 more | 35 min |
| Mar 8, 5:20 PM CST | Mesoscale Discussion | SPC | Carter, Coal, Comanche, Cotton, Garvin, Grady and 9 more | 25 min |
| Mar 8, 5:30 PM CST | Tornado Watch | SPC | Atoka, Bryan, Caddo, Carter, Coal, Comanche and 11 more | 7 hr |
Nearby
Tornado Watches in Oklahoma, 2006Every tornado watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.