An upper trough and frontal boundary will focus showers and thunderstorms across portions of the Plains through early Monday; A few severe thunderstorms along with heavy rainfall are expected. Meanwhile, low pressure off the Southeast Coast will bring inclement weather across the mid-Atlantic coast through Monday. This system is forecast to meander off the coast then track inland early this week. Read More >
Overview
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**Preliminary information as of July 14, 2024.** Multiple rounds of thunderstorms led to widespread wind and hail damage across parts of Minnesota and Wisconsin on July 13 into the morning of July 14. Scattered clusters of storms resulted in large hail over portions of east-central Minnesota during the afternoon on July 13. One storm produced a brief tornado in Rice County. A line of storms then developed over northwestern Minnesota during the evening and travelled southeast across central Minnesota throughout the night. This line led to numerous reports of hail and wind damage before it weakened as it moved into Wisconsin. An unusually warm and humid air mass resulted in heat index values greater than 100F across portions of southern and western Minnesota during the afternoon and evening of July 13. The combination of several thunderstorms and persistent cloud cover kept heat index values in the low to mid 80s further east. |
.png) Map of severe storm reports on July 13 and 14. The most up to date list of reports can be found here. |
Tornadoes
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Tornado - Medford, MN
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Wind & Hail:
Widespread reports of wind damage and large hail occurred with the several rounds of thunderstorms from July 13 to 14. Some of the largest hail came out of a strong supercell that formed in eastern Minnesota during the afternoon of July 13, with reports of up to 3.5 inches in diameter. The line of storms overnight resulted in numerous downed branches and trees stretching from Alexandria to the Twin Cities, MN. Pockets of large hail were embedded within the line, with hail stones up to 4 inches in diameter reported near Monticello and Big Lake, MN.
Wind
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| Large tree branch snapped in Golden Valley near the intersection of Laurel Ave and Rhode Island Ave around 1am on July 14. Picture taken by Brian Wright (@BrianWright14 on X). | Large tree (roughly 16-21 inch base) uprooted near the main campus of Minneapolis College of Art and Design around 1:10am on July 14. Picture taken by K Vigneur (@lost_one71 on X). | Large tree and numerous branches down near Wolfe Park in St Louis Park, MN around 1:05am on July 14. Picture taken by Ellen Lewin. |
NOUS43 KMPX 142016 PNSMPX MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-150816- Public Information Statement National Weather Service Twin Cities/Chanhassen MN 316 PM CDT Sun Jul 14 2024 ...HIGHEST WIND REPORTS FROM JULY 13TH/14TH EVENT... Location Speed Time/Date Provider Minneapolis-St. Paul AP 62 MPH 0110 AM 07/14 ASOS Alexandria MN ASOS 56 MPH 1041 PM 07/13 ASOS St. Paul Dwtn AP 56 MPH 0123 AM 07/14 ASOS Crystal AP 53 MPH 0106 AM 07/14 ASOS I-94 - Sauk Centre - Mp 128 51 MPH 1115 PM 07/13 MESOWEST T.h.65 - East Bethel - Mp 25 50 MPH 0125 AM 07/14 MESOWEST Santiago 3E 49 MPH 0120 AM 07/14 RAWS Long Prairie AP 49 MPH 1055 PM 07/13 AWOS St. Cloud AP 49 MPH 1158 PM 07/13 ASOS T.h.23 - Richmond - Mp 187.8 49 MPH 1150 PM 07/13 MESOWEST Sauk Centre AP 48 MPH 1115 PM 07/13 AWOS Eden Prairie AP 48 MPH 0100 AM 07/14 ASOS South St. Paul AP 47 MPH 0135 AM 07/14 AWOS Coon Rapids 45 MPH 0100 AM 07/14 CWOP Lake Elmo AP 45 MPH 1255 AM 07/14 AWOS Maple Lake AP 45 MPH 1215 AM 07/14 AWOS Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official. $$
Hail
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| Hail stone with a measured diameter of 3.5 inches that fell in Rice County just south of highway 60 near Jacobs Ave around 5:10pm on July 13. Picture taken by Nicole Kaderlik. | Hail stone with a measured diameter of 4 inches that fell in Big Lake, MN near the intersection of county 39 and Gillard around 12:20am on July 14. Picture shared by Craig Bruner. | Large hail stones up to 3.5 inches in diameter that fell in Monticello, MN around 12:20am on July 14. Picture taken by Allison Jean. |
Radar
Radar loops showing reflectivity (left) and velocity (right) during the afternoon and overnight convection.
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| A radar loop of thunderstorms in eastern Minnesota, one of which produced a brief tornado near Medford, MN. | A radar loop of a line of thunderstorms as they moved from central Minnesota into eastern Minnesota. Large hail and damaging wind gusts occurred along this line. |
Heat Indices
NOUS43 KMPX 140109 PNSMPX MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-141309- Public Information Statement National Weather Service Twin Cities/Chanhassen MN 809 PM CDT Sat Jul 13 2024 ...MAXIMUM HEAT INDEX REPORTS... The following list shows heat index values of 100 degrees or higher that were reported today at ASOS and AWOS stations. Location Heat Idx. Time/Date Provider Madison AP 113 F 0655 PM 07/13 AWOS St. James AP 111 F 0735 PM 07/13 AWOS Granite Falls AP 108 F 0539 PM 07/13 AWOS Canby AP 103 F 0655 PM 07/13 AWOS Fairmont AP 103 F 0656 PM 07/13 AWOS Mankato AP 102 F 0456 PM 07/13 AWOS Redwood Falls AP 102 F 0653 PM 07/13 ASOS Albert Lea AP 100 F 0656 PM 07/13 AWOS Appleton AP 100 F 0753 PM 07/13 AWOS Montevideo AP 100 F 0735 PM 07/13 AWOS Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official. $$
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