Idaho, 2014

Winter Weather in Idaho, February 8 to 10, 2014

February 8 to 10, 2014 · NWS MSO · 2 events in 2 counties and zones

Moist Pacific westerly flow brought snow to north-central Idaho.

Where it happened

Every event with a place to put it; 2 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
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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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 MSO wrote it up.

Moist Pacific westerly flow brought snow to north-central Idaho.

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 Missoula, MT wrote its last area forecast discussion before the first event at Feb 8, 12:14 PM MST, 2 hours 46 minutes earlier.

Area forecast discussion, Feb 8, 12:14 PM MST, 2 hours 46 minutes before
Area Forecast Discussion
National Weather Service Missoula MT
1214 PM MST Sat Feb 8 2014

.UPDATE...Cancelled warnings in central Idaho and kept the Lemhi
county Idaho and western Montana highlights going.

&&

.DISCUSSION...Webcams and satellite imagery shows conditions
improving in central Idaho with the dry air moving into the area, so
cancelled the warnings with roads clearing off and snow slowing or
stopping. Kept highlights in Lemhi County because of blowing snow
on webcams and an area that appears active on satellite headed for
the area.

In western Montana, the southern Bitterroot and areas east of
Missoula are still snowing with reduced visibility and snow
covered roads, so will let the advisories continue.

Another round of snow is expected tonight, especially in central
Idaho, so will be considering advisories for tonight. If issued,
those will go out with the new forecast this afternoon.

&&

.AVIATION...

Periods of snow will exist across the Northern Rockies during the
next 24 hours, impacting area air terminals. The most significant
impact to visibility and ceiling will be found at KMSO and KSMN,
however visibility and ceiling issues will also exist at times for
KBTM and KGPI. Terrain obscurations will continue today and
through the evening.

&&

.PREV DISCUSSION... /ISSUED 346 AM MST Sat Feb 8 2014/

..Steady Snow Today for North Central Idaho into Western Montana...

DISCUSSION...A plume of moisture has moved into the region this
evening causing widespread snow through north central Idaho into
western Montana. The best snowfall is anticipated across Idaho
county into Lemhi county and southwest Montana. Several Winter
weather warnings and advisories have been issued for the affected
area. These headlines will go through this evening. The area will
experience a very short break from the snow overnight. A stream of
moisture over southern Idaho will move northward on Sunday which
will cause snow to increase in coverage and intensity. This
moisture feed will diminish Sunday night into Monday morning. Late
Monday into Monday night, the models are indicating a warm front
to swing through the region. This warm front will cause snow levels
to steadily rise, in many locations above the valley floors.
The precipitation is anticipated to switch over to rain sometime
between late Monday into Tuesday. Even though the precipitation
will be falling as rain the ground temperatures being well below
freezing, will potentially cause freezing rain on area roadways.
The moist air mass will continue to move through the region
Wednesday into Thursday causing widespread precipitation; snow in
the higher terrain and a wintry mix in most valleys. The models
are diverging on the extent of moisture making its way into the
Northern Rockies by the end of the week into next weekend.

For temperatures...Tonight the lack of cloud cover across
northwest Montana should allow temperatures to drop into the sub
zero range again. However, the increasingly warm westerly flow
will push temperatures to near normal readings early in the coming
week.

AVIATION...

Periods of snow will exist across the Northern Rockies during the
next 24 hours, impacting area air terminals. The most significant
impact to visibility and ceiling will be found at KMSO and KSMN,
however visibility and ceiling issues will also exist at times for
KBTM and KGPI. Terrain obscurations will continue today and
through the evening.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY until 11 PM MST this evening
     Butte/Blackfoot Region.

     WINTER WEATHER ADVISORY until 11 PM MST this evening
     Bitterroot/Sapphire Mountains...Missoula/Bitterroot Valleys.

ID...WINTER WEATHER ADVISORY until 11 PM MST this evening Western
     Lemhi County.

     WINTER STORM WARNING until 11 PM MST this evening Eastern Lemhi
     County.

&&

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In the hours before

Local storm report, Feb 8, 10:05 AM MST, 4 hours 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
1005 AM MST SAT FEB 8 2014

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

1004 AM     SNOW             GRANGEVILLE             45.92N 116.12W
02/08/2014  E3.0 INCH        IDAHO              ID   TRAINED SPOTTER

            SNOW DURATION 24 HOURS OBSERVER LOCATION
            GRANGEVILLE

&&

NWS MISSOULA MT
IRIS SYSTEM
Local storm report, Feb 8, 10:12 AM MST, 4 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
1012 AM MST SAT FEB 8 2014

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

1012 AM     SNOW             POLLOCK                 45.31N 116.36W
02/08/2014  E2.5 INCH        IDAHO              ID   TRAINED SPOTTER

            SNOW DURATION 6 HOURS OBSERVER LOCATION .4
            MI S POLLOCK

&&

NWS MISSOULA MT
IRIS SYSTEM
Local storm report, Feb 8, 10:30 AM MST, 4 hours 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
1030 AM MST SAT FEB 8 2014

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

1029 AM     SNOW             7 S WILLIAMS LAKE       44.90N 113.97W
02/08/2014  M4.5 INCH        LEMHI              ID   TRAINED SPOTTER

            SNOW DURATION 24 HOURS OBSERVER LOCATION 20
            MILE SOUTH OF SALMON ON HWY 93

&&

NWS MISSOULA MT
IRIS SYSTEM
Local storm report, Feb 8, 11:49 AM MST, 3 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
1149 AM MST SAT FEB 8 2014

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

1149 AM     SNOW             1 SW DARBY              46.02N 114.18W
02/08/2014  M7.0 INCH        RAVALLI            MT   TRAINED SPOTTER

            SNOW DURATION 12 HOURS OBSERVER LOCATION
            DARBY

&&

NWS MISSOULA MT
IRIS SYSTEM
Local storm report, Feb 8, 11:52 AM MST, 3 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
1152 AM MST SAT FEB 8 2014

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

1152 AM     SNOW             GRANGEVILLE             45.93N 116.12W
02/08/2014  M6.0 INCH        IDAHO              ID   TRAINED SPOTTER

&&

NWS MISSOULA MT
IRIS SYSTEM
Local storm report, Feb 8, 2:10 PM MST, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
210 PM MST SAT FEB 8 2014

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

0209 PM     SNOW             2 SW NEWCOMB            45.90N 112.55W
02/08/2014  M2.5 INCH        SILVER BOW         MT   TRAINED SPOTTER

            SNOW DURATION 12 HOURS OBSERVER LOCATION 7
            MI S OF BUTTE

&&

NWS MISSOULA MT
IRIS SYSTEM

The radar

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

Open the radar archive at this moment

Event by event

2 winter weather. Local standard time, as filed.

Winter Weather, Eastern Lemhi County

When
February 8, 3:00 PM MST to February 10, 10:00 AM MST
Where
Eastern Lemhi County forecast zone
Reported by
Department of Highways
Coordinates
44.943, -113.933 (the zone’s center; the record gives no point)

The ITD reported up to 14 inches of snow had fallen along Williams Creek and locations near Salmon to Leadore reported anywhere from 5 to 8 inches of snowfall.

Winter Weather, Orofino / Grangeville Region

When
February 8, 3:00 PM PST to February 9, 8:00 PM PST
Where
Orofino / Grangeville Region forecast zone
Reported by
Trained Spotter
Coordinates
46.259, -115.562 (the zone’s center; the record gives no point)

Trained spotters located from Orofino to Grangeville reported anywhere from 3 to 5 inches of total snowfall.

What these are

Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

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

The same day elsewhere

More

Every storm in Idaho in 2014Every state in 2014This day in weather historyWarnings in Idaho, February 2014

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: 502940, 502937.