Tornado Warning 1, NWS Glasgow, MT

Area Forecast Discussion
National Weather Service Glasgow MT
152 PM MDT Mon Jul 18 2022

.DISCUSSION...
Wind threat seems to be greater for the southwest half of the CWA
late this afternoon into Tuesday with gusts to 60 mph. Therefore,
issued a High Wind Warning for these zones. Thunderstorms could
produce stronger gusts.

A Severe Thunderstorm Watch is in effect for all of Northeast
Montana till 8 pm. Wind and hail are the main threats with hail
less of a threat south of Fort Peck Lake. TFJ

Previous Discussion...
Warm airmass remains over the forecast area overnight with
temperatures in the 70s and 80s at 2 am (09Z). NE Montana will
have one more hot day although it will be not as hot as yesterday
in some areas. Will extend Heat Advisory through 6 pm today in
most areas where highs will be upper 90s to 105. Will cancel
advisory along the Canadian Border where highs will be in the
lower to mid 90s.

Upper low will move east along the MT/Canada border this afternoon
and tonight. A cold front will move across NE Montana in the late
afternoon and early evening. An unstable atmosphere will allow
thunderstorms to develop along this front with some storms
becoming severe. SPC has Daniels, Sheridan, and Roosevelt Counties
in an Enhanced Risk for severe wx where the most unstable
conditions are expected while most of the remainder of the
forecast area is in a Slight Risk. Large hail and damaging winds
are the main risk with the severe wx.

Strong west to NW wind are expected behind the cold front tonight
and Tuesday. With 850 mb winds approaching 50 knots, higher
elevations of the Little Rockies in SW Phillips County will have
gusts near 60 mph that are synoptically driven starting in the
late afternoon and continuing tonight. Will issue a High Wind
Warning there. Will keep Lake Wind Advisory for Fort Peck Lake in
effect for tonight and Tuesday.

A second round of showers and thunderstorms are possible late
tonight and Tuesday morning mainly in the north as the wrap
around precipitation with the upper low moves through the area.

Surface high moves in Tuesday Night with diminishing winds and
the high will keep winds light on Wednesday. Temperatures warm
into the 90s in most areas late in the week with upper ridge.

&&

.AVIATION...
LAST UPDATED: 1950Z

Thunderstorms will move east across the area late this afternoon
bringing mainly strong/damaging winds with a more scattered
threat of large hail by 8 pm (a Severe Thunderstorm Watch is in
effect until then). Strong west to NW winds will follow these
storms that will continue into Tuesday. TFJ

&&

.GLASGOW WATCHES/WARNINGS/ADVISORIES...
High Wind Warning until 3 PM MDT Tuesday for Garfield...
Petroleum...Southwest Phillips.

Heat Advisory until 6 PM MDT this evening for Central and
Southeast Phillips...Central and Southern Valley...Dawson...
Eastern Roosevelt...Garfield...McCone...Petroleum...Prairie...
Richland...Southwest Phillips...Western Roosevelt...Wibaux.

High Wind Warning until 6 PM MDT Tuesday for Dawson...McCone...
Prairie...Wibaux.

High Wind Warning until midnight MDT tonight for Central and
Southeast Phillips...Central and Southern Valley.

&&

weather.gov/glasgow

Special Weather Statement
National Weather Service Glasgow MT
422 PM MDT Mon Jul 18 2022

MTZ023>026-182315-
Richland MT-Dawson MT-Prairie MT-McCone MT-
422 PM MDT Mon Jul 18 2022

...A strong thunderstorm will impact portions of central McCone,
northwestern Prairie, Dawson and west central Richland Counties
through 515 PM MDT...

At 421 PM MDT, Doppler radar was tracking a strong thunderstorm 14
miles east of Nelson Creek Rec Area, or 18 miles northwest of Circle,
moving east at 55 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Glendive, Circle, Richey, Bloomfield, West Glendive, Brockway,
Lindsay, Hoyt, Enid, Mccloud, Weldon, Watkins, Forest Park and
Stipek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 800 PM MDT for
northeastern Montana.

&&

LAT...LON 4687 10599 4777 10610 4784 10466 4694 10459
TIME...MOT...LOC 2221Z 260DEG 48KT 4758 10591

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Jamba

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