Severe Thunderstorm Warning 214, NWS Grand Forks, ND

Area Forecast Discussion
National Weather Service Grand Forks ND
1158 PM CDT Sat Jul 25 2020

.UPDATE...
Issued at 1158 PM CDT Sat Jul 25 2020

The frontal boundary continues to push across the area, with
showers and thunderstorms behind it. Most of the precip is with
the mid level frontogensis so storms are not surface based. Other
than a cell near the SD border most are not near severe. Precip
will continue to push eastward through the next few hours as the
front moves through.

UPDATE Issued at 944 PM CDT Sat Jul 25 2020

More storms are starting to expand into the Devils Lake Basin just
behind the surface front, and the cores are rising upwards as they
move into more unstable air. Disorganized and pulsy at this point,
but will have to monitor closely for the next few hours as the
front continues to push into the RRV where instability is still
extremely high.

UPDATE Issued at 656 PM CDT Sat Jul 25 2020

Adjusted POPs a bit for showers and thunderstorms that have been
sparse to develop along the front across the Devils Lake Basin.
There continues to be some towers trying to go up along the
boundary and some post frontal showers and storms further west, so
continued to keep POPs fairly high for now. Will continue to
monitor as the front pushes southeast.

&&

.SHORT TERM...(This evening through Sunday night)
Issued at 303 PM CDT Sat Jul 25 2020

The main impact for the short term will be the cold frontal
passage tonight, and any associated severe storms with it.

Low clouds are finally scouring out of the southern Red River
Valley, yet some still remain over west central Minnesota. Other
areas have cleared, allowing good heating, with plenty of
moisture. SPC meso page shows plenty of surface based CAPE along
and west of the Valley, with good 0-6km effective shear. Surface
cold front appears to be inching into the Devils Lake region and
central North Dakota, which will be the focus for late afternoon
and evening showers and storms. High resolution guidance shows
activity breaking out over central North Dakota between 5 and 7
pm, with potential strong to severe storms then. Think most of the
strong to severe activity will last through sundown, then think
it will trend downward again. Not much of a low level jet tonight
to keep things going beyond then, but will be monitoring those
trends this evening. Even though storms may not be severe by late
evening and overnight, they should hold together and bring some
rain to many areas. All this activity should move out of the FA by
late Sunday morning, with the rest of the period looking more
normal temperature-wise, and quieter.

.LONG TERM...(Monday through Saturday)
Issued at 303 PM CDT Sat Jul 25 2020

July has been an active month so far, but it looks like we will be
getting a break near the end of the month. High pressure is present
at the surface throughout much of the next week. This quieter high
pressure pattern starts to break down later in the week with some
chances for showers or thunderstorms returning Friday into the
weekend. For this potentially more active period there is good
agreement on a change in pattern around this time, but specifics are
uncertain with the spread in deterministic and ensemble guidance.
Temperatures in this period will be relatively stable with a slight
warming trend going from near normal on Monday to warmer than normal
later in the week.

&&

.AVIATION...(For the 06Z TAFS through 06Z Sunday night)
Issued at 1158 PM CDT Sat Jul 25 2020

Showers and thunderstorms moving along a cold front will push
across the ND Red River airports and towards KTVF. Do not think it
will hold together to get to KBJI but will continue to monitor.
VFR conditions behind the storms and for the rest of the period.
Winds will pick up from the northwest with some gusts above 20 kts
possible tomorrow afternoon, then drop again in the evening.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...None.
MN...None.

UPDATE...JR
SHORT TERM...Godon
LONG TERM...NC
AVIATION...JR

Hazardous Weather Outlook
National Weather Service Grand Forks ND
411 AM CDT Sat Jul 25 2020

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-261300-
West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods-
West Marshall-East Marshall-North Beltrami-Pennington-Red Lake-
East Polk-North Clearwater-South Beltrami-Mahnomen-
South Clearwater-Hubbard-West Becker-East Becker-Wilkin-
West Otter Tail-East Otter Tail-Wadena-Grant-Towner-Cavalier-
Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-Grand Forks-
Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland-
Western Walsh-
411 AM CDT Sat Jul 25 2020

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...Today and Tonight

Isolated severe thunderstorms are possible this afternoon and
evening. Storms are expected to affect the Devils Lake basin after
4pm, and the remainder of eastern North Dakota into the Red River
Valley after 6pm. Severe storm potential will diminish after
sunset. Main threats include hail up to 1.5 inches and wind gusts
up to 60 mph.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required this afternoon.

Special Weather Statement
National Weather Service Grand Forks ND
1243 AM CDT Sun Jul 26 2020

NDZ052-053-260615-
Sargent ND-Richland ND-
1243 AM CDT Sun Jul 26 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN RICHLAND AND
SOUTHEASTERN SARGENT COUNTIES UNTIL 115 AM CDT...

At 1243 AM CDT, Doppler radar was tracking a strong thunderstorm near
Lidgerwood, or 34 miles southwest of Wahpeton, moving east at 40 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

This strong thunderstorm will be near...
  Lamars and Blackmer around 115 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4594 9757 4604 9761 4607 9657 4602 9658
      4594 9656
TIME...MOT...LOC 0543Z 271DEG 36KT 4598 9718

Knutsvig

Special Weather Statement
National Weather Service Grand Forks ND
1258 AM CDT Sun Jul 26 2020

MNZ001-002-014>016-022-023-260700-
Red Lake MN-Mahnomen MN-West Polk MN-South Clearwater MN-Norman MN-
East Polk MN-North Clearwater MN-
1258 AM CDT Sun Jul 26 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN RED LAKE...NORTHEASTERN
NORMAN...SOUTHEASTERN POLK...NORTHERN MAHNOMEN AND NORTHERN
CLEARWATER COUNTIES UNTIL 200 AM CDT...

At 1258 AM CDT, Doppler radar was tracking a strong thunderstorm over
Maple Bay, or 35 miles south of Thief River Falls, moving east at 40
mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Maple Bay around 100 AM CDT.
  Mentor around 110 AM CDT.
  Erskine and Winger around 115 AM CDT.
  McIntosh around 125 AM CDT.
  Fosston around 130 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4746 9634 4777 9652 4794 9569 4793 9559
      4796 9558 4802 9528 4793 9528 4789 9525
      4746 9519
TIME...MOT...LOC 0558Z 260DEG 36KT 4761 9626

Knutsvig

Special Weather Statement
National Weather Service Grand Forks ND
116 AM CDT Sun Jul 26 2020

MNZ029-NDZ053-260645-
Wilkin MN-Richland ND-
116 AM CDT Sun Jul 26 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WILKIN AND SOUTHERN
RICHLAND COUNTIES UNTIL 145 AM CDT...

At 115 AM CDT, Doppler radar was tracking a strong thunderstorm over
Lamars, or 21 miles south of Wahpeton, moving east at 45 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Fairmount around 120 AM CDT.
  Blackmer around 125 AM CDT.
  Tenney around 135 AM CDT.
  Nashua around 145 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4611 9722 4612 9627 4602 9627 4602 9657
      4593 9656 4593 9718
TIME...MOT...LOC 0615Z 267DEG 38KT 4597 9671

Knutsvig

Special Weather Statement
National Weather Service Grand Forks ND
138 AM CDT Sun Jul 26 2020

MNZ006-260700-
Lake Of The Woods MN-
138 AM CDT Sun Jul 26 2020

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN LAKE OF THE WOODS COUNTY
UNTIL 200 AM CDT...

At 138 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Garden Island State Recreation Area to
near Carp. Movement was east at 35 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
these storms.

Strong thunderstorms will be near...
  Carp around 145 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

LAT...LON 4846 9443 4843 9492 4915 9500 4919 9480
      4888 9468 4883 9471 4878 9469 4872 9459
      4869 9444 4870 9443
TIME...MOT...LOC 0638Z 259DEG 32KT 4912 9480 4852 9472

Knutsvig

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS ND
155 AM CDT SUN JUL 26 2020

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

0145 AM     TSTM WND GST     TENNEY                  46.04N 96.45W
07/26/2020  M52 MPH          WILKIN             MN   MESONET

            US 75 TENNEY RWIS

&&

TGRAFENA

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