Update on the chance of rain on Sunday, plus a look at the week ahead

As expected, rainfall totals Saturday and Saturday evening were highest in parts of extreme southern Minnesota and northern Iowa to Wisconsin.

The National Weather Service’s Advanced Hydrological Forecasting Service released the 24-hour rainfall map from Saturday 7 a.m. to Sunday 7 a.m.:

24-hour rain totals ending at 7 a.m. Sunday


Areas shaded red in extreme southwestern Minnesota through northern Iowa saw between 3 and 6 inches of rain. Much of southern Minnesota was between 1.5 and 3 inches. The official rainfall total at MSP Airport from Saturday through Saturday night was 0.57 inches, but parts of Carver County and western Hennepin County received between one and two inches of rain. The NWS has released precipitation totals for locations in various counties here. We will be adding a little to our weekend rainfall totals today and tonight.

Extreme southern Minnesota, northern Iowa and southern Wisconsin are expected to see the most persistent rain today, with a few built-in thunderstorms. Patchy areas of rain showers are expected today across the rest of Minnesota and across central and northern Wisconsin, with a thunderstorm also possible at times. A higher level disturbance will likely ignite larger areas of rain and thunderstorms Sunday night into Sunday night.

Flood watch in southeastern Minnesota until 7 a.m. Monday

A flood watch continues through 7 a.m. Monday in southeastern Minnesota as well as parts of northeastern Iowa and southern Wisconsin:


Flood Watch (shaded green) continues until 7 a.m. Monday

National Weather Service

Here are the details of the flood watch, which includes the Rochester area:

Flood Watch National Weather Service La Crosse WI 309 AM CDT Sun Aug 7, 2022 -072000- /O.EXT.KARX.FA.A.0005.000000T0000Z-220808T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chilmasted-Old-Floyd-Floyd-Floydashonashaw Dodge -Mower-Fillmore-Houston-Buffalo- Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford- Richland-Grant- Including the cities of Rochester, Sparta, Viroqua, Alma, Whitehall, Dodge Center, Friendship, Platteville, Winona, Elkader, Tomah, Caledonia, Wabasha, Arcadia, Cresco, Waukon, La Crosse, New Hampton, Austin, Osage, Richland Center, Black River Falls, Prairie Du Chien, Oelwein, Preston, Decorah, Charles City, and Mauston 309 AM CDT Sun Aug 7, 2022 … FLOOD WATCH IN EFFECT UNTIL MONDAY MORNING… * WHAT… Flash flooding from excessive precipitation is still possible. * WHERE… Portions of Iowa, southeastern Minnesota and Wisconsin, including the following counties, in Iowa, Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell and Winneshiek. In southeastern Minnesota, Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and Winona. In Wisconsin, Adams, Buffalo, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Trempealeau and Vernon. * WHEN… Until Monday morning. * IMPACTS… Excessive runoff can cause flooding of rivers, streams, streams and other low, flood-prone places. Flooding can occur in poorly drained and urban areas. * ADDITIONAL DETAILS… – A humid atmosphere combined with driving storms will lead to an increased potential for flash flooding. – http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS… You should monitor subsequent forecasts and be prepared to take action if flash flood warnings are issued.

You can hear updated weather information for Minnesota and western Wisconsin on the Minnesota Public Radio News Network, and you can see updated weather information on the MPR News live weather blog.

Temperature trends

Sunday high temperatures will be mostly in the 60s in about the northern third of Minnesota, with mostly 70s elsewhere in Minnesota and western Wisconsin.

Monday highs will be in the 70s in most areas:


Monday forecast highs

National Weather Service

It’s kinda cool; our average high temperature in the twin cities is 82 degrees this time of year.

Monday afternoon dew points will be in the fairly comfortable 50s:


Monday 1 p.m. dew point forecast

National Weather Service

Back to forecast high temperatures, highs for the Twin Cities metro area are expected to reach the low 80s on Tuesday, followed by the mid-80s on Wednesday and Thursday and high 80s on Friday. I should mention that it looks fairly rainless in the Twin Cities Tuesday through Thursday, with a chance of a return shower/storm late Friday.

Temperatures could be above normal next weekend and early next week. The NWS Climate Prediction Center shows a trend of above normal temperatures in the upper Midwest from August 12-16:


Temperature outlook for August 12 to August 16

NWS Climate Prediction Center

We’ll see if it works.

Programming note

You can hear my live weather updates on MPR News at 7:35am, 9:35am and 4:39pm every Saturday and Sunday.

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