July 17, 2017 Severe Weather Event

Overview

Monday July 17th was another hot and humid day, especially across southeast North Dakota and west central Minnesota. In Minnesota, temperatures peaked at 96 at Park Rapids and 93 at Elbow Lake, in North Dakota, it was 95 near McLeod, 94 at Fargo, and 93 at Gwinner, and in northeast South Dakota, Aberdeen hit 104 and Sisseton 101. Severe thunderstorms formed right near the Wahpeton-Breckenridge area, on eastward into the Perham, Minnesota, area. These storms produced large hail and very heavy rain. As the early evening progressed, the storms gradually sunk south-southeast into central Minnesota.

Wind & Hail
Photos & Video
Radar
Storm Reports
Rainfall
Environment

Wind & Hail:

Most of the event reports were large hail, but there was a report of a semi truck and trailer blown over on U. S. Highway 10 near New York Mills, Minnesota.

Photos & Video:

Tenney MN Looking East
(Courtesy MNDOT)

Radar:


2 - 8 PM Monday	Visible Satellite Imagery - GOES 16 Preliminary Data

Storm Reports


..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0339 PM     HAIL             1 SSE WAHPETON          46.26N 96.60W
07/17/2017  E0.88 INCH       RICHLAND           ND   COCORAHS

0340 PM     HAIL             WAHPETON                46.27N 96.61W
07/17/2017  E1.00 INCH       RICHLAND           ND   TRAINED SPOTTER

            SECOND ROUND OF HAIL. LOTS OF NICKEL TO QUARTER SIZED.

0355 PM     TSTM WND DMG     4 WNW NEW YORK MILLS    46.54N 95.45W
07/17/2017                   OTTER TAIL         MN   LAW ENFORCEMENT

            SEMI TRUCK AND TRAILER COMBINATION BLOWN OVER ON U. S.
            HIGHWAY 10. TIME ESTIMATED BASED ON RADAR.

0405 PM     HAIL             7 SW FERGUS FALLS       46.21N 96.17W
07/17/2017  E1.00 INCH       OTTER TAIL         MN   PUBLIC

            LARGE HAIL FELL FOR SEVERAL MINUTES ACROSS SOUTHERN
            ORWELL TOWNSHIP.

0410 PM     HAIL             2 NNW BLUFFTON          46.50N 95.25W
07/17/2017  E1.25 INCH       OTTER TAIL         MN   TRAINED SPOTTER

            HAIL OF QUARTER TO HALF DOLLAR SIZE.

0425 PM     HAIL             BLUE GRASS              46.54N 95.01W
07/17/2017  E0.75 INCH       WADENA             MN   TRAINED SPOTTER

0442 PM     HAIL             5 ENE PARKERS PRAIRIE   46.18N 95.23W
07/17/2017  E1.75 INCH       OTTER TAIL         MN   PARK/FOREST SRVC

            QUARTER TO GOLF BALL SIZED HAIL COVERED THE HIGHWAY. FEW
            STONES STILL FALLING AT 445 PM CDT.

0450 PM     HAIL             5 SSE CLITHERALL        46.21N 95.59W
07/17/2017  E1.50 INCH       OTTER TAIL         MN   PUBLIC

0455 PM     HAIL             11 S FERGUS FALLS       46.12N 96.07W
07/17/2017  E1.75 INCH       OTTER TAIL         MN   PUBLIC

            LOTS OF QUARTER TO GOLF BALL SIZED HAIL AND STRONG WINDS
            ACROSS SOUTHERN AASTAD TOWNSHIP.

0515 PM     HAIL             2 SW ASHBY              46.07N 95.85W
07/17/2017  E1.50 INCH       GRANT              MN   PUBLIC

            LOTS OF QUARTER TO PING PONG BALL SIZED HAIL NEAR
            INTERSTATE 94 IN WESTERN PELICAN LAKE TOWNSHIP.

Rain Reports

This map does not catch the highest rainfall totals, which were very localized. There were likely some spots with over 3 inches of rain, mainly along the Otter Tail and Grant county border and eastward.

Environment


Severe Thunderstorm Watch	Severe Warnings Issued (5)	4 pm Surface Map


4 pm Surface CAPE	4 pm Precipitable Water

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