Severe Thunderstorm Watch 393

Issued

Jul 26, 2021, 5:22 PM CDT (22:22 UTC)

Expired

Jul 26, 2021, 10:39 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

4 in

Strongest gust expected

70 kt

The Fargo/Grand Forks radar (KMVX), 71 km from the middle of the area, began a volume at 22:24 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.

Two or more tornadoes

20%

One or more EF2 to EF5 tornadoes

5%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

40%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

70%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 1353 Severe potential...watch possibleJul 26, 4:42 PM CDT
• Mesoscale Discussion 1355 Severe potential...severe thunderstorm watch likelyJul 26, 5:00 PM CDT
• Mesoscale Discussion 1358 Severe thunderstorm watch 393Jul 26, 7:12 PM CDT
• Mesoscale Discussion 1359 Severe thunderstorm watch 393Jul 26, 7:40 PM CDT
• Mesoscale Discussion 1360 Severe thunderstorm watch 393...394Jul 26, 8:41 PM CDT

195 
WWUS20 KWNS 262219
SEL3  
SPC WW 262219
MNZ000-NDZ000-SDZ000-270500-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 393
NWS Storm Prediction Center Norman OK
520 PM CDT Mon Jul 26 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Northern to central Minnesota
  Southeast North Dakota
  Northeast South Dakota

* Effective this Monday afternoon from 520 PM until Midnight CDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 4
    inches in diameter likely
  Scattered damaging winds and isolated significant gusts to 80
    mph possible
  A tornado or two possible

SUMMARY...Intense supercell over northwest Minnesota may become a
long-track, cyclic giant hail producing storm across north-central
Minnesota. Additional storms are expected along a front in
south-central to southeast North Dakota, with further development
farther east towards central Minnesota through the evening.

The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 60 miles north of
Mobridge SD to 30 miles north northeast of Duluth MN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU3).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 392...

AVIATION...A few severe thunderstorms with hail surface and aloft to
4 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 600. Mean storm motion vector
32025.

...Grams

Severe Thunderstorm Watches in Minnesota, 2021Severe Thunderstorm Watches in North Dakota, 2021Severe Thunderstorm Watches in South Dakota, 2021Every severe thunderstorm watch in 2021

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