Montana, 2020

Heavy Snow and High Wind in Montana, February 1 to 3, 2020

February 1 to 3, 2020 · NWS TFX · 11 events in 5 counties and zones

A surface cold front pushes into the region from southern Alberta, bringing a few snow showers to parts of northern and central Montana. Temperatures expected to be roughly 20-30 degrees colder than previous day.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
11

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS TFX wrote it up.

A surface cold front pushes into the region from southern Alberta, bringing a few snow showers to parts of northern and central Montana. Temperatures expected to be roughly 20-30 degrees colder than previous day. Snow widespread across SW MT through much of the day. General snow total accumulation of 3-6 inches expected for areas along and south of I90 with up to 12 inches possible in the higher elevations of the Madison and Gallatin ranges.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Great Falls, MT wrote its last area forecast discussion before the first event at Feb 1, 10:18 AM MST, 2 hours 42 minutes earlier.

Area forecast discussion, Feb 1, 10:18 AM MST, 2 hours 42 minutes before
<!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>

In the hours before

Local storm report, Feb 1, 12:13 PM MST, 47 minutes before
<!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>
Local storm report, Feb 1, 12:14 PM MST, 46 minutes before
<!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>
Local storm report, Feb 1, 12:15 PM MST, 45 minutes before
<!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>
Local storm report, Feb 1, 12:16 PM MST, 44 minutes before
<!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>
Local storm report, Feb 1, 12:34 PM MST, 26 minutes before
<!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>
Local storm report, Feb 1, 12:40 PM MST, 20 minutes before
<!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>

Event by event

7 winter weather, 3 heavy snow, 1 high wind. Local standard time, as filed.

Winter Weather, Eastern Teton

When
February 1, 1:00 PM MST to February 2, 6:00 AM MST
Where
Eastern Teton forecast zone
Reported by
Public

Measured 8 to 12 inches of snow from Saturday afternoon (February 1st).

Heavy Snow, Gallatin

When
February 1, 1:00 PM MST to February 2, 6:58 AM MST
Where
Gallatin forecast zone
Reported by
Mesonet

Snow 13 inches since Saturday afternoon (February 1st) 12 nne Bozeman.

Heavy Snow, Madison

When
February 1, 3:30 PM MST to February 3, 3:30 PM MST
Where
Madison forecast zone
Reported by
COOP Observer

Co-op observer madm8, madison dam. 10 inches two-day snow total.

Winter Weather, Gallatin

When
February 1, 4:00 PM MST to February 3, 4:00 PM MST
Where
Gallatin forecast zone
Reported by
COOP Observer

Co-op observer station bzem8 bozeman msu coop. 7 inches two day snow total.

Heavy Snow, Madison

When
February 2, 1:00 AM MST to February 3, 8:00 AM MST
Where
Madison forecast zone
Reported by
Public

Measured 18 inches snow since late Saturday night/early Sunday morning.

High Wind, Blaine

When
February 2, 7:25 AM MST
Where
Blaine forecast zone
Measured
53 kt (61 mph) measured gust
Reported by
Mesonet

Station mtm37.

Winter Weather, Gallatin

When
February 2, 1:10 PM MST
Where
Gallatin forecast zone
Reported by
Broadcast Media

Report from kbzk studios. 7.5 inches of snow.

Winter Weather, Madison

When
February 2, 3:15 PM MST
Where
Madison forecast zone
Reported by
Trained Spotter

Measured 8 inches snow.

Winter Weather, Beaverhead

When
February 2, 3:54 PM MST
Where
Beaverhead forecast zone
Reported by
Social Media

Measured 8 inches of snow in Dillon.

Winter Weather, Gallatin

When
February 3, 7:00 AM MST
Where
Gallatin forecast zone
Reported by
CoCoRaHS

Cocorahs station mt-gn-11, 1 se bozeman cocorahs. 8 inches two-day total.

Winter Weather, Beaverhead

When
February 3, 8:00 AM MST
Where
Beaverhead forecast zone
Reported by
COOP Observer

Co-op observer station grnm8, grant 5 se. 7.5 inches two-day storm total.

What these are

Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.
Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.
High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Montana in 2020Every state in 2020This day in weather historyWarnings in Montana, February 2020

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 873590, 873591, 873610, 873614, 873608, 873589, 873597, 873592, 873594, 873611, 873613.