Montana, 2022

Drought in Montana, December 1 to 19, 2022

December 1 to 19, 2022 · NWS GGW · 1 event in 1 county or zone

Drought improvement moved northward from southeast Montana enough to remove Prairie County from drought.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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 GGW wrote it up.

Drought improvement moved northward from southeast Montana enough to remove Prairie County from drought.

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 Glasgow, MT wrote its last area forecast discussion before the first event at Nov 30, 8:42 PM MST, 3 hours 18 minutes earlier.

Area forecast discussion, Nov 30, 8:42 PM MST, 3 hours 18 minutes before
Area Forecast Discussion
National Weather Service Glasgow MT
842 PM MST Wed Nov 30 2022

.DISCUSSION...
Temperatures are one of the biggest challenges this evening as
warm air advection and thick clouds should keep them from falling
tonight. Temps will struggle tomorrow as a cold front drops in
during the morning.

Just made slight adjustments to temps and winds through Thursday
morning while the rest of the forecast looked good. TFJ

Previous Discussion...
A high pressure ridge is currently in place, and mainly high
clouds are over the region.

Wednesday night into Thursday:
The shallow ridge will move off to the east by Thursday afternoon
as a trough makes its way into northeast Montana. Slightly warmer
temperatures are expected on Thursday.

Thursday night:
Snowfall will begin east of the divide early Thursday night and
spread eastward later in the night. The ensemble models are coming
into agreement with snow amounts by suggesting an overall range of
2 to 4 inches across most of the area. Winter weather advisories
have been issued everywhere except for the southeastern counties
because snow amounts are slightly below advisory criteria in those
locations.

Friday and Friday night:
Snowfall will likely linger in the eastern counties until early
afternoon. High temperatures in the single digits will filter in
behind this system, and wind chills will range from 10 below to 20
below zero. Temperatures will drop below zero in the north Friday
night.

Saturday and beyond:
Temperatures will rebound for the weekend due to ridging before
dropping again early next week.

&&

.AVIATION...
Updated: 0335Z

Flight Category: VFR, but conditions will lower to IFR late
Thursday.

Discussion: A cold front will switch winds Thursday from SE to NW.
Lower cigs will follow behind with conditions dropping below VFR
from west to east late in the day, reaching KSDY about 00Z Friday.

Winds: SE turning to the NW at KGGW about 10z with cold front
pushing SE. Winds become NW at KGDV/KSDY and increase to about 10
kts. TFJ

&&

.GLASGOW WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 5 PM Thursday to 5 PM MST Friday
for Central and Southeast Phillips...Central and Southern
Valley...Daniels...Garfield...McCone...Northern Phillips...
Northern Valley...Petroleum...Sheridan...Southwest Phillips...
Western Roosevelt.

&&

weather.gov/glasgow

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 drought. Local standard time, as filed.

Drought, Prairie

When
December 1, 12:00 AM MST to December 19, 11:59 PM MST
Where
Prairie forecast zone
Reported by
Drought Monitor
Coordinates
46.861, -105.378 (the zone’s center; the record gives no point)

To start December, ongoing drought conditions in all of the northeastern two thirds of Prairie County were in (D2-Severe) conditions while the southwestern third of Prairie County was in (D1-Moderate) drought. On the third week of December, all of Prairie County had improved to (D1-Moderate) drought.

What these are

Drought
A drought reaching severe (D2) or worse on the US Drought Monitor, or with notable impacts.

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

The same day elsewhere

More

Every storm in Montana in 2022Every state in 2022This day in weather historyWarnings in Montana, December 2022

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 2026-09-24. Each event’s entry at NCEI: 1065855.