Alert archive / Michigan / Tornado Watches in 2006
Tornado Watch 87
The Storm Prediction Center issued this tornado watch at Mar 13, 2006, 10:44 AM EST for 13 counties in Indiana; 28 counties in Michigan; 14 counties in Ohio. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 13, 2006, 10:44 AM EST (15:44 UTC)
- Expired
- Mar 13, 2006, 4:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 55 counties
Adams County, IN, Allen County, IN, DeKalb County, IN, Elkhart County, IN, Huntington County, IN, Kosciusko County, IN, LaGrange County, IN, Miami County, IN, Noble County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Barry County, MI, Branch County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Gratiot County, MI, Hillsdale County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Montcalm County, MI, Oakland County, MI, Saginaw County, MI, Saint Clair County, MI, Saint Joseph 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, Seneca County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH
The radar
The Grand Rapids radar (KGRR), 100 km from the middle of the area, began a volume at 15:47 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
Detroit, MI (KDTX), launched 12:00Z, 3.7 hours before the alert went out and 105 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1133 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 131540
SEL7
SPC WW 131540
INZ000-MIZ000-OHZ000-LEZ000-LHZ000-132100-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 87
NWS STORM PREDICTION CENTER NORMAN OK
1040 AM EST MON MAR 13 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN INDIANA
SOUTHERN LOWER MICHIGAN
NORTHWEST OHIO
LAKE ERIE
LAKE HURON
EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 1040 AM UNTIL 400
PM EST.
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 75 STATUTE MILES
EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHWEST OF FLINT
MICHIGAN TO 20 MILES EAST SOUTHEAST OF FORT WAYNE INDIANA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU7).
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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 83. WATCH NUMBER 83 WILL NOT BE IN EFFECT AFTER 1040
AM EST. CONTINUE...WW 84...WW 85...WW 86...
DISCUSSION...VERY STRONG SHEAR PROFILES IN PLACE ACROSS WATCH AREA
AHEAD OF DEEPENING LOW AND COLD FRONT. AIRMASS DESTABILIZING
SUFFICIENTLY TO ALLOW REDEVELOPMENT OF SEVERE THUNDERSTORMS ACROSS
NRN IN INTO SWRN LOWER. SUPERCELLS ARE EXPECTED AND GIVEN THE
POTENT SHEAR PROFILES TORNADOES POSSIBLE.
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 23050.
...HALESSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 9:00 PM EST | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Cass, Clay, Clinton and 14 more | 90 min |
| Mar 12, 9:42 PM EST | Tornado Watch | SPC | Benton, Jasper, Lake, Newton, Porter | 7 hr |
| Mar 12, 11:39 PM EST | Mesoscale Discussion | SPC | Allen, Carroll, Cass, Clinton, DeKalb, Elkhart and 18 more | 96 min |
| Mar 13, 12:23 AM EST | Tornado Watch | SPC | Allen, Cass, DeKalb, Elkhart, Fulton, Huntington and 13 more | 7 hr |
| Mar 13, 2:06 AM EST | Tornado Watch | SPC | Gibson, Pike, Posey, Spencer, Vanderburgh, Warrick | 6 hr |
| Mar 13, 4:19 AM EST | Mesoscale Discussion | SPC | Bartholomew, Blackford, Boone, Brown, Clay, Clinton and 44 more | 86 min |
| Mar 13, 4:52 AM EST | Tornado Watch | SPC | Adams, Allen, Bartholomew, Benton, Blackford, Boone and 57 more | 7 hr |
| Mar 13, 7:08 AM EST | Mesoscale Discussion | SPC | Dubois, Gibson, Knox, Perry, Pike, Posey and 3 more | 97 min |
| Mar 13, 7:56 AM EST | Severe Thunderstorm Watch | SPC | Clark, Crawford, Dubois, Floyd, Gibson, Harrison and 9 more | 4 hr |
| Mar 13, 10:39 AM EST | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Boone, Carroll, Cass and 28 more | 66 min |
| Mar 13, 11:22 AM EST | Severe Thunderstorm Watch | SPC | Clark, Dearborn, Floyd, Harrison, Jefferson, Ohio and 3 more | 10 hr |
| Mar 13, 3:13 PM EST | Mesoscale Discussion | SPC | Clark, Dearborn, Jefferson, Ohio, Ripley, Switzerland | 92 min |
| Mar 13, 3:16 AM EST | Mesoscale Discussion | SPC | Barry, Bay, Branch, Calhoun, Clinton, Eaton and 26 more | 89 min |
| Mar 13, 3:51 AM EST | Tornado Watch | SPC | Lenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw and 1 more | 7 hr |
| Mar 13, 8:57 AM EST | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 1 more | 5 hr |
| Mar 13, 3:19 PM EST | Mesoscale Discussion | SPC | Lapeer, Macomb, Monroe, Oakland, Wayne | 56 min |
Nearby
Tornado Watches in Michigan, 2006Tornado Watches in Ohio, 2006Tornado Watches in Indiana, 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.