Alert archive / Minnesota / Excessive Heat Watches in 2020

Excessive Heat Watch 1, NWS Twin Cities, MN

July 16, 202029 counties in Minnesota; 6 counties in Wisconsin

NWS Twin Cities, MN issued this excessive heat watch at Jul 16, 2020, 3:36 PM CDT for 29 counties in Minnesota; 6 counties in Wisconsin. It took effect at Jul 18, 2020, 11:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Jul 16, 2020, 3:36 PM CDT (20:36 UTC)
In effect from
Jul 18, 2020, 11:00 AM CDT
Expired
Jul 17, 2020, 2:24 PM CDT
In force
Issued by
NWS Twin Cities, MN
All 35 counties

Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Nicollet County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Steele County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 24 km from the middle of the area, began a volume at 20:36 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 forecasters said that day

The local office's own words before this excessive heat watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Twin Cities, MN wrote its last area forecast discussion before this excessive heat watch went out at Jul 16, 3:33 PM CDT, 3 minutes earlier.

Area forecast discussion, Jul 16, 3:33 PM CDT, 3 minutes before
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Hazardous weather outlook, Jul 16, 3:57 AM CDT, 11 hours 39 minutes before
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
357 AM CDT Thu Jul 16 2020

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
170900-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
357 AM CDT Thu Jul 16 2020

This Hazardous Weather Outlook is for portions of central and
southern Minnesota...and west central Wisconsin.

.DAY ONE...Today and Tonight.

Areas of dense fog will continue through 8 AM this morning in
west central Wisconsin.

Non-severe thunderstorms will move across west central and central
Minnesota this morning.

Isolated thunderstorms are expected to develop late this
afternoon from southwest Minnesota toward western Lake Superior. A
few of these storms could become severe, with large hail and
damaging winds being possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Isolated thunderstorms will be possible through the day on Friday.
Friday night, a line of thunderstorms is expected to come out of
the Dakotas and move across Minnesota and will carry with it the
risk for widespread wind damage and heavy rainfall.

Thunderstorms are expected to develop again late Saturday
afternoon into Saturday night across southern Minnesota into
western Wisconsin. A risk for severe weather and heavy rainfall
will again be possible.

Heat and humidity will increase Saturday. Heat indices of 95 to
105 appear possible.

There are small chances for thunderstorms Sunday and Monday, with
chances for thunderstorms, including severe weather, increasing
again on Tuesday.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will likely be needed Friday night.

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 16, 8:52 AM CDTRiver Flood WarningMPXEau Claire24 hr

Nearby

Excessive Heat Watches in Minnesota, 2020Excessive Heat Watches in Wisconsin, 2020Every excessive heat watch in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.