Alert archive / Wisconsin / Tornado Watches in 2005
Tornado Watch 401
The Storm Prediction Center issued this tornado watch at Jun 4, 2005, 11:25 PM CDT for 4 counties in Illinois; 15 counties in Wisconsin. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 4, 2005, 11:25 PM CDT (04:25 UTC)
- Expired
- Jun 5, 2005, 4:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Boone County, IL, Lake County, IL, McHenry County, IL, Winnebago County, IL, Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Green Lake County, WI, Jefferson County, WI, Kenosha County, WI, Marquette County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Rock County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI
The radar
The Milwaukee radar (KMKX), 37 km from the middle of the area, began a volume at 04:26 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.
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 11:30 PM CDT | Severe Thunderstorm Warning | MKX | Racine, Walworth, Waukesha | 24 min |
| Jun 4, 11:42 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee | 24 min |
| Jun 5, 12:15 AM CDT | Severe Thunderstorm Warning | MKX | Rock | 34 min |
| Jun 5, 1:21 AM CDT | Severe Thunderstorm Warning | MKX | Dane, Rock | 44 min |
| Jun 5, 1:40 AM CDT | Severe Thunderstorm Warning | MKX | Jefferson | 37 min |
| Jun 5, 1:50 AM CDT | Severe Thunderstorm Warning | MKX | Green Lake, Marquette | 29 min |
| Jun 5, 1:57 AM CDT | Severe Thunderstorm Warning | MKX | Rock | 36 min |
| Jun 5, 2:10 AM CDT | Severe Thunderstorm Warning | MKX | Walworth | 22 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, 4.4 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
- 11 J/kg
- Mixed-layer CIN
- -171 J/kg
- Mixed-layer LCL
- 1033 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 255 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 050423
SEL1
SPC WW 050423
ILZ000-WIZ000-LMZ000-050900-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 401
NWS STORM PREDICTION CENTER NORMAN OK
1125 PM CDT SAT JUN 4 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
FAR NORTHERN ILLINOIS
SOUTHEAST WISCONSIN
LAKE MICHIGAN
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1125 PM
UNTIL 400 AM CDT.
TORNADOES...HAIL TO 2 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 60 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 10 MILES WEST SOUTHWEST OF MADISON
WISCONSIN TO 10 MILES NORTHEAST OF MILWAUKEE WISCONSIN. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).
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 396...WW 397...WW 399...WW
400...
DISCUSSION...THUNDERSTORMS/POSSIBLE SUPERCELLS EXPECTED TO SPREAD
INTO/DEVELOP OVER WW AREA THROUGH EARLY SUNDAY AS WARM ADVECTION AND
SHEAR STRENGTHEN DOWNSTREAM FROM POTENT CNTRL NEB SHORTWAVE TROUGH.
LOW LEVEL DIRECTIONAL SHEAR INVOF RESIDUAL W/E BOUNDARY OVER NRN IL
MAY ENHANCE POTENTIAL FOR LOW LEVEL STORM ROTATION/ISOLATED
TORNADOES IN ADDITION TO HAIL/WIND.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 23035.
...CORFIDI
435,0893 435,0874 421,0874 421,0893SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 7:55 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Carroll, Cass, Fulton and 22 more | 2 hr |
| Jun 4, 8:15 PM CDT | Tornado Watch | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 34 more | 8 hr |
| Jun 4, 10:00 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 32 more | 90 min |
| Jun 5, 12:55 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 32 more | 95 min |
| Jun 5, 2:52 AM CDT | Mesoscale Discussion | SPC | Boone, Christian, Cook, DeKalb, DeWitt, DuPage and 20 more | 83 min |
| Jun 5, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Coles, Crawford, Cumberland, Douglas and 6 more | 7 hr |
| Jun 4, 7:15 PM CDT | Mesoscale Discussion | SPC | Ashland, Barron, Bayfield, Buffalo, Calumet, Chippewa and 29 more | 90 min |
| Jun 5, 12:19 PM CDT | Mesoscale Discussion | SPC | Barron, Bayfield, Buffalo, Burnett, Chippewa, Clark and 17 more | 86 min |
| Jun 5, 12:50 PM CDT | Severe Thunderstorm Watch | SPC | Ashland, Barron, Bayfield, Buffalo, Burnett, Chippewa and 28 more | 6 hr |
| Jun 5, 3:21 PM CDT | Mesoscale Discussion | SPC | Adams, Ashland, Barron, Bayfield, Brown, Buffalo and 56 more | 84 min |
| Jun 5, 3:40 PM CDT | Tornado Watch | SPC | Brown, Calumet, Florence, Forest, Iron, Kewaunee and 16 more | 5 hr |
| Jun 5, 6:07 PM CDT | Mesoscale Discussion | SPC | Barron, Bayfield, Buffalo, Burnett, Chippewa, Clark and 18 more | 53 min |
Nearby
Tornado Watches in Wisconsin, 2005Tornado Watches in Illinois, 2005Every tornado watch in 2005
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.