Flood Information


This is an update regarding today's severe weather and flash flood risk.  Overall, confidence has increased in seeing one or more lines or clusters of strong to severe thunderstorms, along with torrential rainfall.

 Bottom Line Up Front

 Multiple lines or clusters of thunderstorms are expected to move through the region this afternoon and evening.  Strong gusty winds, large hail, and a few tornadoes will be possible.  In addition, very heavy rain will accompany the thunderstorms.  This will lead to a risk of flooding and flash flooding. 

 What has changed?

 Overall confidence in seeing strong/severe thunderstorms has increased.  Thunderstorms may begin slightly earlier than previously expected, perhaps as early as noon.  

 The Flash Flood Watch has also been expanded southward to include Green County. 

 Forecast Information

Where: All of southern and central Wisconsin

What: Strong to severe thunderstorms, and very heavy rain

When: Starting across southwestern and western Wisconsin as early as noon, pushing east through the afternoon.

Impacts: Severe thunderstorms will contain a risk of high winds, large hail, and a few tornadoes.  Very heavy rain will also occur with any thunderstorms, leading to a risk of flash flooding.  Flash flooding will be most likely for those areas that have seen very heavy rain over the last week.

 Please see the latest Situation Report for the latest information.

 Note: This information is current as of 8/28/18.  For updates on these and other graphics, please visit the following useful links.  (Click to go to page)

Current Watches, Warnings and Advisories

Latest NWS Milwaukee Situation Report

NWS Milwaukee Website (for laptop/PC viewing)

Detailed Forecast via Cell Phone

Current Graphical Forecast

Latest SPC Outlooks:

Southern Wisconsin: (Today)  (Tomorrow)  (Day After Tomorrow)

Wisconsin:  (Today)  (Tomorrow)  (Day After Tomorrow)

Understanding SPC Severe Thunderstorm Risk Categories

Latest River Stage Forecasts

Summer Weather Monitor Page

NWS Milwaukee/Sullivan


Residents should continue to call 2-1-1 to report damages.  After reporting to 2-1-1, contact the clerk at 608-424-3848 to fill out a Damage Inspect Form.

The following instructions must be followed precisely for a reliable test. You must test your water the morning of Wednesday, August 29th and return the sample to Montrose Town Hall between 8:00 a.m. and 9:00 a.m. on August 29th.  The sample is only viable for a short time.

If you need assistance with clean up, contact Town Clerk at 608-424-3848 for more information.

As of 8/24/18 WE Energies is working to restore gas service to the Frenchtown Road area.  The gas line is across the Sugar River south of the bridge located at the east end of Frenchtown Rd and the intersection of Frenchtown Rd and Moorehead Rd.

Dane County Emergency Management has submitted preliminary costs to State of Wisconsin to see if the state will qualify for Federal assistance.

Public Health Madison & Dane County http://www.publichealthmdc.com/

Free Water Testing kits will be available for pick up at Montrose Town Hall, 1341 Diane Avenue, Belleville WI 53508 on Monday August 27th from 9:00 a.m. to 3:00 p.m.  Kits will have full instructions

Septic Systems-If problems contact a licensed plumber who will get the necessary permits and owner should then contact Public Health Madison Dane County at http://publichealthmdc.com

Public Health Madison Dane County recommends NOT pumping holding tanks dry. If the ground is saturated and the holding tank is empty it could shift positions. If the tank shifts or pops out of the ground, contact a licensed professional plumber.

If well has been contaminated it must be cleaned and inspected by licensed professional plumbers.

To be eligible for Federal Assistance (if available) you must precisely document the incident (written & photos), keep all copies of contracts, receipts etc. and only licensed professionals can do the work.

Flood website to assist with information https://dcflood.countyofdane.com

Household Emergency Plan http://danedocs.countyofdane.com

2-1-1 http://211.org/services/national-events


FLOOD WATERS TOOLKIT         https://www.dhs.wisconsin.gov/publications/p0/p00631.pdf

WATER TESTING http://www.publichealthmdc.com/environmental-health/laboratory-services/drinking-water-testing

EMERGENCY HANDBOOK FOR FOOD MANAGERS https://www.cdc.gov/nceh/ehs/docs/apc/apc_emergency_handbook_for_food_managers.pdf

PROPERLY CLEANING UP AFTER FLOODS http://www.publichealthmdc.com/news/properly-cleaning-up-after-floods