Alert archive / Michigan / Tornado Watches in 2008
Tornado Watch 6
The Storm Prediction Center issued this tornado watch at Jan 7, 2008, 9:22 PM EST for 11 counties in Indiana; 18 counties in Michigan; 13 counties in Ohio. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 7, 2008, 9:22 PM EST (02:22 UTC)
- Expired
- Jan 7, 2008, 11:56 PM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
All 42 counties
Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Bay County, MI, Genesee County, MI, Hillsdale County, MI, Huron County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Midland County, MI, Monroe County, MI, Oakland County, MI, Saginaw County, MI, Saint Clair County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Defiance County, OH, Fulton County, OH, Hancock County, OH, Henry County, OH, Lucas County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Sandusky County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 9:22 PM EST | Severe Thunderstorm Warning | IWX | Elkhart, Fulton, Kosciusko, Marshall, Miami, Wabash | 38 min |
| Jan 7, 9:45 PM EST | Severe Thunderstorm Warning | IWX | Hillsdale | 45 min |
| Jan 7, 9:56 PM EST | Severe Thunderstorm Warning | DTX | Livingston, Washtenaw | 64 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 2.4 hours before the alert went out and 123 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
- 179 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 633 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 333 m²/s²
- 0-3 km storm-relative helicity
- 353 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
513
WWUS20 KWNS 080222
SEL6
SPC WW 080222
INZ000-MIZ000-OHZ000-LEZ000-LHZ000-080700-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 6
NWS STORM PREDICTION CENTER NORMAN OK
920 PM EST MON JAN 7 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHEAST INDIANA
EASTERN LOWER MICHIGAN
NORTHWEST OHIO
LAKE ERIE
LAKE HURON
EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 920 PM UNTIL
200 AM EST.
TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 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 25 MILES SOUTH OF FORT WAYNE
INDIANA TO 10 MILES NORTH OF BAD AXE MICHIGAN. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU6).
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 1...WW 2...WW 3...WW
4...WW 5...
DISCUSSION...STRONG DEEP UNIDIRECTIONAL WSW FLOW DEPICTED IN VWP
DATA OVER SRN MI AND NRN IL SUGGEST LEWPY NRN IND/SRN MI SQUALL LINE
SHOULD CONTINUE ENE TOWARD DTX/TOL. WHILE CONVECTIVE SYSTEM WILL
ENCOUNTER GRADUALLY DECREASING SFC-BASED INSTABILITY...STRENGTH OF
WIND FIELD AND EXISTING LEWP STRUCTURES SUGGEST A CONTINUED THREAT
FOR LOCALLY DAMAGING WIND AND PERHAPS A BRIEF TORNADO.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
350. MEAN STORM MOTION VECTOR 25050.
...CORFIDISPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 7:01 PM EST | Tornado Watch | SPC | Cass, Elkhart, Fulton, Kosciusko, LaGrange, LaPorte and 7 more | 5 hr |
| Jan 7, 8:03 PM EST | Mesoscale Discussion | SPC | Allen, Benton, Blackford, Boone, Carroll, Cass and 29 more | 117 min |
| Jan 8, 1:22 PM EST | Mesoscale Discussion | SPC | Clark, Crawford, Daviess, Dubois, Floyd, Gibson and 16 more | 83 min |
| Jan 8, 2:11 PM EST | Mesoscale Discussion | SPC | Crawford, Gibson, Perry, Posey, Spencer, Vanderburgh and 1 more | 2 hr |
| Jan 8, 2:26 PM EST | Tornado Watch | SPC | Clark, Crawford, Dubois, Floyd, Gibson, Harrison and 10 more | 8 hr |
| Jan 8, 5:03 PM EST | Mesoscale Discussion | SPC | Harrison, Perry, Spencer, Warrick | 117 min |
Nearby
Tornado Watches in Michigan, 2008Tornado Watches in Ohio, 2008Tornado Watches in Indiana, 2008Every tornado watch 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; the sounding from the Mesonet's radiosonde archive.