Helena, MT

12:07 AM MST on February 10, 2012 (GMT -0700)
Elev: 3773 ft
Lon: 112.0° W
Lat: 46.6° N
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Active Advisory: Winter Weather Advisory (US Severe Weather)
Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Jessica Parker
Weather Underground Forecast for Friday, February 10, 2012.

Expect active weather to move into the East on Friday, as a trough of low pressure moves from the Southern Plains and into the Eastern Valleys. Flow around this system will pull moisture and energy in from the Gulf of Mexico. This will produce scattered showers and thunderstorms over the Southern Plains and Lower Mississippi River Valley throughout the day. There is a slight chance that these storms will turn severe with strong winds and heavy downpours. The northern side of this system will push a cold front into the Midwest, which will move through the Great Lakes and into the Ohio River Valley. Expect light and scattered snow showers to develop along the front as it passes through northern Michigan and into the eastern Ohio Valley and the Central Appalachians. Warmer temperatures ahead of this system will allow for rain showers to develop in parts of the Mid-Atlantic states and the Tennessee Valley.

Out West, a weak trough of low pressure moves onshore from the Pacific Ocean, bringing some moisture onshore with it. This will produce more rain and high elevation snow showers over the Pacific Northwest. Some of this moisture will stretch southward into northern California, allowing for light rain and high elevation snow showers to spread into the northern Sierras.
Weather Underground Forecast for Friday, February 10, 2012.

Expect active weather to move into the East on Friday, as a trough of low pressure moves from the Southern Plains and into the Eastern Valleys. Flow around this system will pull moisture and energy in from the Gulf of Mexico. This will produce scattered showers and thunderstorms over the Southern Plains and Lower Mississippi River Valley throughout the day. There is a slight chance that these storms will turn severe with strong winds and heavy downpours. The northern side of this system will push a cold front into the Midwest, which will move through the Great Lakes and into the Ohio River Valley. Expect light and scattered snow showers to develop along the front as it passes through northern Michigan and into the eastern Ohio Valley and the Central Appalachians. Warmer temperatures ahead of this system will allow for rain showers to develop in parts of the Mid-Atlantic states and the Tennessee Valley.

Out West, a weak trough of low pressure moves onshore from the Pacific Ocean, bringing some moisture onshore with it. This will produce more rain and high elevation snow showers over the Pacific Northwest. Some of this moisture will stretch southward into northern California, allowing for light rain and high elevation snow showers to spread into the northern Sierras.
Weather Underground Broadcast Network
Helena Weather at a Glance
Updated 11:42 PM MST
Elevation
3735 ft
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Now
Clear
Clear
Temperature
25 °F
Feels Like 25 °F
Wind(mph)
0
Sunrise / Set
7:40 AM
5:44 PM
Moon
Waning Gibbous
Tonight
Chance of Snow 20 °F
Chance of Snow
40% chance of precipitation
Friday
Rain 48 °F
Rain
90% chance of precipitation
Friday Night
Snow 13 °F
Snow
90% chance of precipitation
Saturday
Chance of Snow 36 | 18 °F
Chance of Snow
30% chance of precipitation
Sunday
Partly Cloudy 38 | 18 °F
Partly Cloudy
Monday
Chance of Snow 36 | 20 °F
Chance of Snow
20% chance of precipitation
Today is forecast to be Much Warmer than yesterday.
Conditions
Pressure
30.30 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
82%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KHLN 100653Z AUTO 00000KT 10SM CLR M02/M05 A3018 RMK AO2 SLP261 T10171050 400831039 $
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Weather Radio
Weather Radio Index
Temperature
Windchill
25 °F
Dew Point
20 °F
Wind
Speed / Dir
Calm
Wind Gust
2.0 mph
Health
UV
0 out of 16
Pollen
.10 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Local Activity
View Flu Map
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Regional Forecast for Central and Southern Lewis and Clark
Friday
chancesnow Snow likely in the morning...then snow in the afternoon. Snow accumulation 1 to 3 inches. Highs 25 to 35. Northeast winds up to 5 mph. Chance of snow near 100 percent.
Friday Night
nt_chancesnow Snow. Snow accumulation 1 to 2 inches. Total snow accumulation 2 to 5 inches. Lows 10 to 20. Northeast winds up to 10 mph. Chance of snow near 100 percent.
Saturday
chancesnow Mostly cloudy with a 50 percent chance of snow. Highs 30 to 35. East winds up to 5 mph.
Saturday Night
nt_chancesnow Partly cloudy with a 20 percent chance of snow showers. Lows around 20. Northeast winds up to 5 mph...shifting to the south after midnight.
Sunday and Sunday Night
nt_chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40. Lows around 20.
Monday
chancesnow Mostly cloudy with a 40 percent chance of snow showers. Highs 30 to 35.
Monday Night
nt_chancesnow Mostly cloudy with a 20 percent chance of snow showers. Lows 15 to 20.
Tuesday and Tuesday Night
nt_chancesnow Mostly cloudy with a 50 percent chance of snow showers. Highs 30 to 35. Lows 15 to 20.
Wednesday and Wednesday Night
nt_chancesnow Mostly cloudy with a 50 percent chance of snow showers. Highs 25 to 35. Lows 15 to 20.
Thursday
chancesnow Partly cloudy with a 50 percent chance of snow showers. Highs 25 to 35.
Source: NWS at 8:59 PM MST on February 9, 2012
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Nowcast
Winter Weather Advisory in effect from 5 am Friday to 5 am MST Saturday...
Forecast
View Calendar 7-Day Weather Forecast for 59601
Friday, 10
Rain
48 | 13 °F
Rain
Chance of
Precipitation
90%
Saturday, 11
Chance of Snow
36 | 18 °F
Chance of Snow
Chance of
Precipitation
30%
Sunday, 12
Partly Cloudy
38 | 18 °F
Partly Cloudy
Chance of
Precipitation
10%
Monday, 13
Chance of Snow
36 | 20 °F
Chance of Snow
Chance of
Precipitation
20%
Tuesday, 14
Partly Cloudy
36 | 18 °F
Partly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Chance of Snow
36 | 18 °F
Chance of Snow
Chance of
Precipitation
20%
Thursday, 16
Partly Cloudy
36 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 8:59 PM MST on February 9, 2012
Regional Forecast for Central and Southern Lewis and Clark
Rest of Tonight
nt_chancesnow Mostly cloudy. Isolated snow showers in the evening...then a chance of snow after midnight. Lows 20 to 25. Southwest winds up to 10 mph. Chance of snow 50 percent.
Friday
chancesnow Snow likely in the morning...then snow in the afternoon. Snow accumulation 1 to 3 inches. Highs 25 to 35. Northeast winds up to 5 mph. Chance of snow near 100 percent.
Friday Night
nt_chancesnow Snow. Snow accumulation 1 to 2 inches. Total snow accumulation 2 to 5 inches. Lows 10 to 20. Northeast winds up to 10 mph. Chance of snow near 100 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 15 32 | 18 32 | 19 21 | 14
Wind 1 mph WSW 1 mph NNE 5 mph North 5 mph NNW
Humidity 81% 63% 62% 75%
Chance of Precip. 40% 90% 90% 90%
Cloud Cover 86% 90% 70% 73%
Conditions Snow Snow Snow Snow
Sunrise & Sunset
7:40 AM
5:44 PM
Source: NWS at 8:59 PM MST on February 9, 2012
Regional Forecast for Central and Southern Lewis and Clark
Saturday
chancesnow Mostly cloudy with a 50 percent chance of snow. Highs 30 to 35. East winds up to 5 mph.
Saturday Night
nt_chancesnow Partly cloudy with a 20 percent chance of snow showers. Lows around 20. Northeast winds up to 5 mph...shifting to the south after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 15 | 10 30 | 18 32 | 19 22 | 15
Wind 1 mph North 2 mph ENE 2 mph NNE 2 mph South
Humidity 83% 60% 58% 70%
Chance of Precip. 90% 40% 40% 20%
Cloud Cover 55% 55% 49% 49%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:38 AM
5:46 PM
Source: NWS at 8:59 PM MST on February 9, 2012
Regional Forecast for Central and Southern Lewis and Clark
Sunday and Sunday Night
nt_chancesnow Mostly cloudy with a 20 percent chance of snow showers. Highs 30 to 40. Lows around 20.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 19 | 14 33 | 20 36 | 21 24 | 14
Wind 5 mph SSW 6 mph SW 5 mph WSW 5 mph SW
Humidity 76% 59% 53% 67%
Chance of Precip. 20% 20% 20% 20%
Cloud Cover 56% 56% 50% 50%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:37 AM
5:48 PM
Source: NWS at 8:59 PM MST on February 9, 2012
Regional Forecast for Central and Southern Lewis and Clark
Monday
chancesnow Mostly cloudy with a 40 percent chance of snow showers. Highs 30 to 35.
Monday Night
nt_chancesnow Mostly cloudy with a 20 percent chance of snow showers. Lows 15 to 20.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 14 30 | 18 34 | 19 24 | 16
Wind 5 mph SW 4 mph SW 3 mph WNW 5 mph WSW
Humidity 74% 61% 54% 70%
Chance of Precip. 20% 20% 20% 20%
Cloud Cover 57% 57% 57% 57%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:35 AM
5:49 PM
Source: NWS at 8:59 PM MST on February 9, 2012
Regional Forecast for Central and Southern Lewis and Clark
Tuesday and Tuesday Night
nt_chancesnow Mostly cloudy with a 50 percent chance of snow showers. Highs 30 to 35. Lows 15 to 20.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 15 32 | 21 34 | 17 22 | 13
Wind 5 mph WSW 6 mph WSW 4 mph WSW 4 mph WSW
Humidity 78% 65% 51% 64%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 54% 54% 55% 55%
Conditions Chance of Snow Chance of Snow Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:34 AM
5:51 PM
Source: NWS at 8:59 PM MST on February 9, 2012
Regional Forecast for Central and Southern Lewis and Clark
Wednesday and Wednesday Night
nt_chancesnow Mostly cloudy with a 50 percent chance of snow showers. Highs 25 to 35. Lows 15 to 20.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 12 30 | 16 32 | 17 22 | 13
Wind 4 mph West 5 mph WNW 5 mph NW 4 mph SW
Humidity 71% 57% 54% 66%
Chance of Precip. 10% 20% 20% 10%
Cloud Cover 61% 61% 51% 51%
Conditions Chance of Snow Chance of Snow Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:34 AM
5:51 PM
Source: NWS at 8:59 PM MST on February 9, 2012
Regional Forecast for Central and Southern Lewis and Clark
Thursday
chancesnow Partly cloudy with a 50 percent chance of snow showers. Highs 25 to 35.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 12 29 | 16 32 | 17 22 | 13
Wind 5 mph SW 6 mph SW 5 mph NW 4 mph SW
Humidity 71% 61% 54% 66%
Chance of Precip. 10% 10% 20% 10%
Cloud Cover 49% 49% 51% 51%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:34 AM
5:51 PM
BestForecast (what's this?)
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 10, 2012 Max Temp Min Temp
Normal (KHLN) 36 °F 14 °F
Record (KHLN) 66 °F (1951) -28 °F (1981)
Yesterday 47 °F 25 °F
Yesterday's Heating Degree Days: 29
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Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Astronomy
Feb. 10, 2012 Rise Set
Actual Time 7:40 AM MST 5:44 PM MST
Civil Twilight 7:08 AM MST 6:16 PM MST
Nautical Twilight 6:33 AM MST 6:52 PM MST
Astronomical Twilight 5:57 AM MST 7:27 PM MST
Moon 9:46 PM MST 8:35 AM MST
Length Of Visible Light 11h 07m
Length of Day
10h 04m
Tomorrow will be 3m 1s longer.
Waning Gibbous, 93% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Visit Astronomy
Today's Extremes
State Highs State Lows
47 °F
Helena
47 °F
Dillon
47 °F
Bozeman
46 °F
Livingston
45 °F
Drummond
1 °F
Wolf Point
5 °F
Glasgow
12 °F
Jordan
12 °F
Baker
14 °F
Glendive
Source: NWS
Snow Depth
Station Depth Elevation
Frohner Meadow 27 in 6480 ft
Tizer Basin 31 in 6840 ft
Rocker Peak 37 in 8000 ft
Nevada Ridge 47 in 7020 ft
Boulder Mountain 50 in 7950 ft
Snow Depth Reports — Snow Depth Map
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Painted Pink
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News
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Travel Planning
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Aviation
City Temp. Conditions Updated
Helena 29 °F Clear 11:53 PM MST
Butte 23 °F Clear 11:53 PM MST
Drummond This station is not reporting.
Great Falls 23 °F Overcast 11:53 PM MST
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Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: VFR (KHLN)
Wind Speed: 0.0 kts.
Wind Dir: 293° (WNW)
Ceiling: Unlimited

METAR KHLN 100653Z AUTO 00000KT 10SM CLR M02/M05 A3018 RMK AO2 SLP261 T10171050 400831039 $

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Nearby Events
Event Date Forecast
Property Mgmt Pre-License Course - Helena 8:00 AM MST 2012-02-13 Clear, 27°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Average High 71° F/ 21° C
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 10, 2012 Partly Cloudy, 45 °F
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 11, 2012 Chance of Rain, 45 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
APRSWXNET Helena MT , Helena, MT 25 °F 25 °F 20 °F 82% WNW  at  0 mph 0.00 in / hr 3735 ft 11:42 PM MST MADIS
APRSWXNET Helena M, Helena, MT 26 °F 26 °F 22 °F 83% SW  at  0 mph 0.00 in / hr 3733 ft 11:39 PM MST MADIS
Diehl Heights, Helena, MT 32.5 °F 32 °F 22 °F 64% West  at  0.0 mph 0.00 in / hr 4367 ft 12:07 AM MST Normal  
Upper South Central, Helena, Mt 31.9 °F 32 °F 22 °F 66% WSW  at  1.3 mph 0.00 in / hr 4400 ft 12:07 AM MST Rapid Fire  
York Rd and Farm in the Dell, Helena, MT 23.9 °F 24 °F 17 °F 76% SW  at  1.0 mph 0.00 in / hr 3750 ft 12:05 AM MST Normal  
North Helena Valley, Helena, MT 28.4 °F 28 °F 22 °F 76% WNW  at  2.2 mph 0.00 in / hr 3821 ft 12:07 AM MST Rapid Fire  
Montana City, MT Weather, Montana City, MT 27.7 °F 28 °F 21 °F 75% SW  at  1.4 mph 0.00 in / hr 4347 ft 12:07 AM MST Rapid Fire
RAWS HELENA MT, Helena, MT 32 °F 32 °F 24 °F 71% NNW  at  2 mph 0.00 in / hr 3799 ft 10:53 PM MST MADIS
Saddle Mountain, Montana City, MT 26.7 °F 27 °F 20 °F 74% East  at  0.0 mph 0.00 in / hr 4760 ft 12:07 AM MST Rapid Fire
Montana Learning Center, Helena, MT 22.7 °F 23 °F 20 °F 90% NW  at  0.0 mph 0.00 in / hr 3878 ft 12:07 AM MST Rapid Fire
Helena National Forest -York Gulch, Helena, MT 21.6 °F 22 °F 19 °F 89% ENE  at  0.0 mph 0.00 in / hr 4229 ft 12:07 AM MST Rapid Fire
Jefferson City, Jefferson City, MT 21.9 °F 22 °F 16 °F 78% ESE  at  0.0 mph 0.00 in / hr 4640 ft 12:05 AM MST Normal
MesoWest Sieben I-15 MP 216 , Canyon Creek, MT 32 °F 23 °F 22 °F 66% WNW  at  11 mph 0.00 in / hr 4199 ft 11:20 PM MST MADIS
19 MWL, Winston, MT 26.5 °F 20 °F 19 °F 74% WSW  at  5.4 mph 0.00 in / hr 4472 ft 12:07 AM MST Rapid Fire  
McClellan Creek Road, Montana City, MT 28.9 °F 29 °F 14 °F 52% SSW  at  2.2 mph 0.00 in / hr 4780 ft 12:07 AM MST Rapid Fire  
MesoWest MacDonald Pass US-12 MP 27.9 , Helena, MT 29 °F 16 °F 27 °F 90% WNW  at  20 mph 0.00 in / hr 6325 ft 11:15 PM MST MADIS
MesoWest FROHNER MEADOW , Helena, MT 30 °F 30 °F - - North  at  - 0.00 in / hr 6479 ft 11:00 PM MST MADIS
MesoWest Boulder Hill I-15 MP 170.9 , Jefferson City, MT 27 °F 22 °F 17 °F 64% SSW  at  4 mph 0.00 in / hr 6250 ft 11:21 PM MST MADIS
MesoWest TIZER BASIN , Winston, MT 21 °F 21 °F - - North  at  - 0.00 in / hr 6839 ft 11:00 PM MST MADIS
MesoWest ROCKER PEAK , Basin, MT 21 °F 21 °F - - North  at  - 0.00 in / hr 8000 ft 10:00 PM MST MADIS
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Winter Weather Advisory
Mobile & Email Alerts Statement as of 9:31 PM MST on February 09, 2012

... Winter Weather Advisory remains in effect from 5 am Friday to
5 am MST Saturday...

A Winter Weather Advisory remains in effect from 5 am Friday to
5 am MST Saturday.

* Timing and main impact: light snow will develop Friday morning.
Periods snow will continue into Friday night.

* Snow accumulations: total snow accumulations of 2 to 4 inches
are expected at lower elevations... with 4 to 8 inches in the
mountains. Snow amounts on the plains of north central Montana
including the Great Falls area will be around an inch or less.

* Visibility: visibilities will be reduced to less than one
mile at times in areas of falling snow.

* Other impacts: expect untreated roadways to be snow covered
and slippery.

* Locations affected include: White Sulphur Springs... Battle Ridge
Pass... Bozeman... Bozeman Pass... Targhee Pass... West
Yellowstone... Stanford... Big Hole Pass... Chief Joseph Pass...
Dillon... Monida Pass... Boulder... Boulder Hill... Elk Park Pass...
Homestake pass... Whitehall... Kings Hill Pass...
Townsend... Flesher Pass... Helena... Lincoln... MacDonald Pass...
Rogers Pass... Ennis... Norris Hill... Raynolds Pass and Twin
Bridges.

Precautionary/preparedness actions...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities... and use caution while
driving.

For specific Road and travel conditions in Montana... dial 5 1 1.