National Weather Service

Watches, Warnings & Advisories
NWS Homepage

3 products issued by NWS for: 5 Miles SSW Janesville WI
Share |

Hazardous Weather Outlook

Hazardous Weather Outlook...UPDATED
National Weather Service Milwaukee/Sullivan WI
800 PM CDT Mon Aug 20 2018

Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
800 PM CDT Mon Aug 20 2018

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Tonight

Showers and thunderstorms producing heavy rainfall will continue
tonight. A Flash Flood Watch remains in effect from through late
tonight for most of south central Wisconsin, and through middle
morning Tuesday for most of southeast Wisconsin. The Flash Flood
Watch includes the Madison and Milwaukee metro areas.

1 to 4 inches of rain is forecast, with local higher amounts.
The potential exists for the heavy rain axis to be across eastern
Wisconsin, and could also affect the same areas that received
heavy rains at the end of last week.

There is a high swim risk for dangerous currents on the beaches
of Lake Michigan. A Beach Hazards Statement is in effect.

.DAYS TWO THROUGH SEVEN...Tuesday through Monday

The high swim risk and Beach Hazards Statement will continue into
Tuesday evening.

There is a small chance of thunderstorms Tuesday afternoon. There
are chances of thunderstorms Friday into Saturday morning, and
again on Sunday.


Spotter activation will not be needed, but rainfall and flooding
reports are appreciated.


Flood Warning

Flood Warning
National Weather Service Milwaukee/Sullivan WI
943 PM CDT Mon Aug 20 2018

...The National Weather Service in Milwaukee/Sullivan has issued a
flood warning for the following rivers in Wisconsin...

  Sugar River At Brodhead affecting Green and Rock Counties

943 PM CDT Mon Aug 20 2018

The National Weather Service in Milwaukee/sullivan has issued a

* Flood Warning for
  The Sugar River At Brodhead.
* At  8:15 PM Monday the stage was 2.0 feet.
* Flood stage is 5.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by tomorrow morning and continue
  to rise to near 7.9 feet by early Wednesday morning. The river will
  fall below flood stage by late Friday morning.
* Impact...At 4.5 feet...Minor lowland flooding occurs.


LAT...LON 4267 8950 4267 8933 4259 8930 4249 8922
      4249 8942 4261 8951



River forecasts are available for some but not all river gaging
locations. The 7 day river forecast takes into account past
precipitation, soil moisture conditions, and predicted
precipitation for the basin. Precipitation is for the next 24 hours
in the future from April through September and for 48 hours in the
future from October through March.

(stages in ft.)        Bank-      Latest         Forecast stages
-               Flood  full      observed        ...for 6 pm...
Location       stage  stage    stage/time       Tue  Wed  Thu  Fri
Brodhead         5.0   4.5   2.04 08 PM 08/20   7.7  7.7  6.0  4.5

-                   Highest      24 hour change
-                   observed     in river stage
-                   stage in      (ft.) up to      Highest stage
-                   the last    latest observed     forecast in
-                   7 days          stage           next 7 days
Brodhead         2.37  04 PM 08/17    0.13       7.90 01 AM 08/22

Below is predicted precipitation information in 6 hour increments
for the listed sites. This information is updated twice daily-morning
and evening. Precipitation prediction is for 48 hours into the future
from October through March and for 24 hours into the future from
April through September.

Brodhead: 6 pm-midn  Mon Aug 20  0.46
Brodhead: midn-6 am  Tue Aug 21  0.11
Brodhead: 6 am-noon  Tue Aug 21  0.00
Brodhead: noon-6 pm  Tue Aug 21  0.00
Brodhead: 6 pm-midn  Tue Aug 21  0.00
Brodhead: midn-6 am  Wed Aug 22  0.00
Brodhead: 6 am-noon  Wed Aug 22  0.00
Brodhead: noon-6 pm  Wed Aug 22  0.00

Flash Flood Watch

Flood Watch
National Weather Service Milwaukee/Sullivan WI
940 PM CDT Mon Aug 20 2018


.Showers and thunderstorms will continue to deposit heavy
rainfall over parts of southern Wisconsin through late tonight.
Parts of western Dane County including parts of Middleton and
Cross Plains have received between 4 and 9 inches of heavy
rainfall since the late afternoon.

A Flash Flood Watch remains in effect tonight. Periods of showers
and thunderstorms will continue to produce heavy rainfall
tonight, possibly lasting into Tuesday morning over southeast and
east central Wisconsin. Several inches of additional rain may
fall over southern Wisconsin during this time. Flash flooding may
occur especially in urban areas or areas that received several
inches of rain last week.

Including the cities of Baraboo, Reedsburg, Prairie Du Sac,
Sauk City, Portage, Columbus, Lake Wisconsin, Lodi, Dodgeville,
Mineral Point, Barneveld, Madison, Darlington, Shullsburg,
Benton, Belmont, Argyle, Blanchardville, Monroe, Brodhead,
Janesville, and Beloit
940 PM CDT Mon Aug 20 2018


The Flash Flood Watch continues for

* A portion of south central Wisconsin, including the following
  areas, Columbia, Dane, Green, Iowa, Lafayette, Rock, and Sauk.

* Until 4 AM CDT Tuesday

* Periods of moderate to heavy rainfall tonight. 2 to 4 inches of
  rainfall is expected with locally higher amounts of 4 to 9
  inches, especially in western Dane County.

* Flash flooding in urban areas will be possible if 1 to 3
  inches of rain or more falls in a short period of time. Flash
  flooding will be possible in rural areas that have already
  received several inches of rain last week.


A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE