Alert archive / Wisconsin / Tornado Watches in 2006
Tornado Watch 445
The Storm Prediction Center issued this tornado watch at Jun 6, 2006, 7:32 PM CDT for 20 counties in Wisconsin. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 6, 2006, 7:32 PM CDT (00:32 UTC)
- Expired
- Jun 6, 2006, 11:00 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
Counties Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Marquette County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Rock County, WI, Sauk County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI
The radar
The Milwaukee radar (KMKX), 59 km from the middle of the area, began a volume at 00:33 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 7:43 PM CDT | Tornado Warning | MKX | Columbia | 62 min |
| Jun 6, 8:06 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac | 54 min |
| Jun 6, 8:15 PM CDT | Tornado Warning | MKX | Green Lake | 45 min |
| Jun 6, 8:18 PM CDT | Tornado Warning | MKX | Green | 47 min |
| Jun 6, 8:22 PM CDT | Tornado Warning | MKX | Dane | 45 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
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.5 hours before the alert went out and 149 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
- 454 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 529 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 070017
SEL5
SPC WW 070017
WIZ000-LMZ000-070400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 445...RESENT
NWS STORM PREDICTION CENTER NORMAN OK
720 PM CDT TUE JUN 6 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN WISCONSIN
LAKE MICHIGAN
EFFECTIVE THIS TUESDAY EVENING FROM 720 PM UNTIL 1100 PM CDT.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 70 MILES NORTH NORTHWEST OF
MILWAUKEE WISCONSIN TO 20 MILES WEST SOUTHWEST OF JANESVILLE
WISCONSIN. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
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 441...WW 442...WW
443...WW 444...
DISCUSSION...SUPERCELLS AND ISOLATED TORNADO THREATS CONTINUE TO
SPREAD SLOWLY EWD ACROSS SRN WI THIS EVENING. SWLY SURFACE WINDS
ARE SUSTAINING MODEST INSTABILITY TO THE SWRN SHORE OF LAKE
MI...WHILE WNWLY WINDS ALOFT ARE PROVIDING SUFFICIENT SHEAR FOR
SUPERCELLS. MARGINALLY SEVERE HAIL IS ALSO LIKELY WITH THE STRONGER
CORES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
400. MEAN STORM MOTION VECTOR 30020.
...EVANSSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 9:05 PM CDT | Mesoscale Discussion | SPC | Calumet, Dodge, Fond du Lac, Green, Green Lake, Jefferson and 5 more | 55 min |
Nearby
Tornado Watches in Wisconsin, 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.