Helena, MT

12:08 AM MDT on August 18, 2017 (GMT -0600)
Helena Regional | | Change Station

Elev 3875 ft 46.61 °N, 111.98 °W | Updated 15 minutes ago

Partly Cloudy
Partly Cloudy
68 °F
Feels Like 68 °F
N
7
Wind Variable Wind from West

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 30.04 in
Visibility 7.0 miles
Clouds Few 5000 ft
Dew Point 38 °F
Humidity 33%
Rainfall 0.00 in
Snow Depth Not available.
6:30 AM 8:32 PM
Waning Crescent, 16% visible
METAR KHLN 180553Z AUTO 26006KT 7SM FEW050 20/03 A3009 RMK AO2 SLP170 T02000033 10294 20200 51009
Pressure 30.04 in
Visibility 7.0 miles
Clouds Few 5000 ft
Dew Point 38 °F
Humidity 33%
Rainfall 0.00 in
Snow Depth Not available.
6:30 AM 8:32 PM
Waning Crescent, 16% visible
METAR KHLN 180553Z AUTO 26006KT 7SM FEW050 20/03 A3009 RMK AO2 SLP170 T02000033 10294 20200 51009

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10-Day Weather Forecast

Almanac

Astronomy

Aug. 18, 2017 Rise Set
Actual Time
Civil Twilight
Nautical Twilight
Astronomical Twilight
Moon
Length of Visible Light
Length of Day
Tomorrow will be .
, % of the Moon is Illuminated

Today's Extremes

State Highs State Lows

Community

WunderPhotos

Category 6

Welcome to Category 6. This is the collective home for Weather Underground's featured writeups by Dr. Jeff Masters (right), Bob Henson (left), Chris Burt, and other regular contributors.

Nearby

Air Quality

  Air Quality AQ Index Pollutant
Not available.

Snow Depth

Station Depth Elevation

Earthquake Activity

City Distance Mag. Time & Date
Minimum magnitude displayed is 2.5.

Coastal Water Temperatures

Place Temperature

Stations

Nearby Weather Stations

Station Location Temp. Windchill Dew Point Humidity Wind Precip. Elev Updated Type
                   

Watches & Warnings

Air Quality Alert
Issued: 9:00 AM MDT Aug. 17, 2017 – National Weather Service

... Air quality alert in effect until 900am MDT Friday...

The Montana department of environmental quality has issued an air
quality alert for Deer Lodge, Granite, Jefferson, Lewis And Clark,
Mineral, Missoula, Powell, Ravalli, and Silver Bow counties in effect
until further notice due to increased fire activity in west-central
Montana, most notably on the Lolo Peak fire. Fire activity is
expected to remain high for the next several days, resulting in
persistent air quality impacts. Impacts are most significant in the
Seeley Lake area. Smoke from the Rice Ridge fire is causing hazardous
air quality impacts between midnight and noon. The Missoula city-
County health department recommends residents spend as little night
time as possible in Seeley Lake due to the dangerous overnight
pollution levels. This alert will be updated again at 900am
8/18/2017.

An air quality alert means that particulates have been trending
upwards and that an exceedence of the 24 hour National ambient air
quality Standard (naaqs) has occurred or may occur in the near
future.

As of 900am, particulate levels in Seeley Lake are hazardous

As of 900am, particulate levels in Superior are unhealthy

As of 900am, particulate levels in Butte, Drummond, Lolo, Helena, and
Philipsburg are unhealthy for sensitive groups

As of 900am, particulate levels in Florence, Frenchtown, Hamilton,
Missoula, and Rock Creek are moderate

When air quality is hazardous... state and local health officials
recommend that everyone should avoid any outdoor exertion; people
with respiratory or heart disease, the elderly, and children should
remain indoors.

When air quality is unhealthy... state and local health officials
recommend that people with respiratory or heart disease, the elderly,
and children should avoid prolonged exertion; everyone else should
limit prolonged exertion.

When air quality is unhealthy for sensitive groups... state and local
health officials recommend that people with respiratory or heart
disease, the elderly and children should limit prolonged exertion.

When air quality is moderate... state and local health officials
recommend that unusually sensitive people should consider reducing
prolonged or heavy exertion.

For more information visit the Montana department of environmental
quality at www.Todaysair.Mt.Gov




Fire Weather Warning
Issued: 7:46 PM MDT Aug. 17, 2017 – National Weather Service

... Red flag warning remains in effect from noon Friday to 6 am MDT
Saturday...

* impacts: low humidities... hot temperatures... and gusty winds
will create erratic fire behavior and an increased risk of new
fire starts. Humidity recover will be poor on Friday night
along with windy conditions.

* Affected area:
in north central Montana fire zones... 112... 114.
In southwest Montana fire zones... 116... 118.

* Counties affected:
in central Montana, Cascade, Lewis And Clark, Meagher.
In north central Montana, Glacier, Liberty, Pondera, Teton,
   Toole.
In southwest Montana, Broadwater, Gallatin, Jefferson.

* Wind: west 10 to 20 mph with gusts up to 30 mph.

* Humidity: as low as 13 percent.

Precautionary/preparedness actions...

A red flag warning means that critical fire weather conditions are
either occurring now, or will shortly. A combination of strong
winds, low relative humidity, and warm temperatures can contribute
to extreme fire behavior.

Please advise the appropriate officials or fire crews in these
areas of this red flag warning.



Http://weather.Gov/greatfalls


1156 am MDT Thu Aug 17 2017

... Red flag warning in effect from noon Friday to 6 am MDT
Saturday...

* affected area:
   fire zone 105 (flathead/Glacier park).
   Fire zone 106 (west lolo).
   Fire zone 107 (salish and Kootenai reservation).
   Fire zone 108 (east lolo).
   Fire zone 109 (bitterroot).
   Fire zone 110 (deerlodge/west beaverhead).

* Impacts/timing: a dry cold front will create dry and breezy
conditions beginning on the ridge tops early Friday afternoon,
then into the lower elevations in the late afternoon and
evening. Wind and dry conditions will likely occur on the
midslopes and ridges well into Friday night.

* Winds: west winds 15 to 20 mph with gusts to 30 mph through
exposed areas. Peak winds are expected between 6 to 9 PM.

* Minimum humidities: 8 to 18 percent.