Severe Thunderstorm Warning 25, NWS Missoula, MT

Area Forecast Discussion
National Weather Service Missoula MT
139 PM MDT Fri Aug 23 2024

.DISCUSSION...The cold front associated with the large low
pressure system off the Pacific Northwest coast is already causing
showers and thunderstorms to develop across central Idaho. Storms
will continue to increase in coverage and intensity as they move
northward into north central Idaho and western Montana. Storms
will be capable of producing erratic wind gusts up to 60 mph,
hail, and heavy rain.

Also, strong southerly winds have developed across Lemhi County
into southwest Montana. A wind advisory has been issued for Lemhi
County until 9pm MDT tonight as gusts up to 45 mph will continue.

The low pressure system will track over the top of the Northern
Rockies this weekend, causing significantly cooler temperatures
as most valleys will be in the 60s and 70s. The evolution of the
low pressure system will cause moisture to become fairly limited.
North central Idaho and west central Montana have the best
probability to receive some additional rainfall over the weekend.
Areas south of the line from Lookout pass to Seeley Lake over to
Rogers pass now have a 50% to 80% chance of receiving a tenth
(0.10") of rain over 48hrs ending Monday morning.

Westerly flow is still expected to develop over the Northern
Rockies for Monday and Tuesday allowing for a warming and drying
trend. Temperatures should be near seasonal averages by Tuesday
afternoon.

All the models are showing a dry cold front pushing through the
region sometime Wednesday/Thursday. This front will bring breezy
conditions to the region along with temperatures once again drop
below average for this time of year. After the passage of the
front a ridge of high pressure builds over the region by the
weekend.

&&

.AVIATION...Increasing south or southeasterly winds gusting to
25-40 knots will continue early this afternoon before shifting to
the west by about 24/0000Z along a frontal passage. Shear and
instability will also increase as a disturbance lifts across the
Northern Rockies and interacts with monsoonal moisture. Scattered
thunderstorms look to initiate around 23/20Z and quickly spread
northward. Some storms could become severe (about 15 percent
chance for KMSO and KGPI; 5% chance for all other airfields),
capable of damaging winds (above 50 knots) and one inch diameter
hail. Winds and thunderstorms diminish quickly by sunset. Saturday
will bring increasing clouds and more widespread rain later in
the day.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...Red Flag Warning until 9 PM MDT this evening for Deerlodge/West
     Beaverhead...East Beaverhead.

ID...Wind Advisory until 9 PM MDT this evening for Eastern Lemhi
     County...Western Lemhi County.

&&

Special Weather Statement
National Weather Service Missoula MT
221 PM MDT Fri Aug 23 2024

MTZ004-232100-
Lower Clark Fork Region MT-
221 PM MDT Fri Aug 23 2024

...Strong thunderstorms will impact portions of north central Mineral
and south central Sanders Counties through 300 PM MDT...

At 220 PM MDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from near St. Regis to Superior.
Movement was north at 15 mph.

HAZARD...Wind gusts up to 40 mph and pea 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...
Superior, Riverbend, St. Regis, and Keystone.

This includes Interstate 90 between mile markers 31 and 56.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms 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.

&&

LAT...LON 4759 11535 4740 11484 4708 11478 4724 11511
TIME...MOT...LOC 2020Z 164DEG 14KT 4727 11505 4719 11489

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Special Weather Statement
National Weather Service Missoula MT
123 PM PDT Fri Aug 23 2024

IDZ005>007-232115-
Southern Clearwater Mountains ID-Northern Clearwater Mountains ID-
Orofino/Grangeville Region ID-
123 PM PDT Fri Aug 23 2024

...Strong thunderstorms will impact portions of north central Idaho
and southwestern Clearwater Counties through 215 PM PDT...

At 123 PM PDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from near Nezperce to 9 miles
east of Weippe. Movement was northwest at 35 mph.

HAZARD...Wind gusts up to 40 mph and pea 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...
Orofino, Pierce, Weippe, Musselshell, Ahsahka, Jaype, Dent, Greer,
Teakean, Pardee, Woodland, and Riverside.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms 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.

&&

LAT...LON 4663 11645 4663 11633 4673 11633 4678 11606
      4633 11558 4624 11604 4629 11612 4638 11618
      4640 11618 4641 11620 4641 11630 4647 11637
      4650 11637 4650 11645
TIME...MOT...LOC 2023Z 137DEG 31KT 4627 11615 4635 11574

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Special Weather Statement
National Weather Service Missoula MT
249 PM MDT Fri Aug 23 2024

MTZ007-232115-
Butte/Blackfoot Region MT-
249 PM MDT Fri Aug 23 2024

...A strong thunderstorm will impact portions of north central Deer
Lodge, east central Granite and southern Powell Counties through 315
PM MDT...

At 249 PM MDT, Doppler radar was tracking a strong thunderstorm near
West Valley, or near Anaconda, moving north at 30 mph.

HAZARD...Wind gusts of 45 to 55 mph and pea 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...
Anaconda, West Valley, and Georgetown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4605 11296 4604 11322 4632 11332 4633 11296
TIME...MOT...LOC 2049Z 175DEG 25KT 4612 11310

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

Special Weather Statement
National Weather Service Missoula MT
306 PM MDT Fri Aug 23 2024

MTZ001-004-232130-
Lower Clark Fork Region MT-Kootenai/Cabinet Region MT-
306 PM MDT Fri Aug 23 2024

...Strong thunderstorms will impact portions of north central Mineral
and central Sanders Counties through 330 PM MDT...

At 306 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Plains to 7 miles north of St. Regis.
Movement was northwest at 20 mph.

HAZARD...Wind gusts up to 40 mph and pea 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...
Thompson Falls, Plains, De Borgia, Snider, Eddy, and Weeksville.

This includes Highway 200 W between mile markers 44 and 78.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms 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 900 PM MDT for
northwestern and west central Montana.

&&

LAT...LON 4780 11490 4761 11558 4733 11519 4746 11472
TIME...MOT...LOC 2106Z 147DEG 19KT 4749 11486 4741 11514

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Special Weather Statement
National Weather Service Missoula MT
311 PM MDT Fri Aug 23 2024

IDZ005-006-MTZ004>006-232145-
Southern Clearwater Mountains ID-Northern Clearwater Mountains ID-
Bitterroot/Sapphire Mountains MT-Missoula/Bitterroot Valleys MT-
Lower Clark Fork Region MT-
311 PM MDT Fri Aug 23 2024

...Strong thunderstorms will impact portions of northeastern Idaho,
eastern Clearwater, southwestern Missoula, west central Granite and
northern Ravalli Counties through 345 PM MDT/245 PM PDT/...

At 310 PM MDT/210 PM PDT/, Doppler radar was tracking a cluster of
strong thunderstorms along a line extending from 16 miles southeast
of Woodside to 10 miles west of Hamilton. Movement was north at 35
mph.

HAZARD...Wind gusts of 45 to 55 mph and pea 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...
Hamilton, Stevensville, Victor, Woodside, Pinesdale, Grantsdale, Bell
Crossing, Skalkaho Pass, Corvallis, and Lolo Pass.

This includes Highway 93 S between mile markers 40 and 72.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms 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 900 PM MDT/800 PM
PDT/ for west central Montana.

&&

LAT...LON 4658 11372 4666 11463 4618 11446 4612 11376
TIME...MOT...LOC 2110Z 174DEG 32KT 4617 11388 4622 11437

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>