Heavy Rainfall and Flash Flood Threats From the Lower Mississippi Valley Into the Mid-Atlantic; Elevated to Critical Fire Concerns Out West

Heavy rainfall will continue through midweek from the lower Mississippi Valley to the Mid-Atlantic. Elevated to critical fire weather threat continues across the Central Great Basin and the Central Rockies; and there is an elevated fire risk from southwestern Oregon to northern California. Record river flooding will continue in portions of the Midwest and the Carolinas. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

Lat: 44.97722°NLon: 110.69528°WElev: 6127ft.

NA

43°F

6°C

Humidity 86%
Wind Speed NW 7 G 10 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 23 Sep 9:15 pm MDT
Extended Forecast for

Norris WY

  • Tonight

    Tonight: Scattered showers, mainly before 11pm.  Widespread frost after 2am. Snow level 9500 feet lowering to 8000 feet after midnight .  Otherwise, partly cloudy, with a low around 28. Light and variable wind.  Chance of precipitation is 40%.

    Scattered
    Showers then
    Frost

    Low: 28 °F

  • Monday

    Monday: A slight chance of rain and snow showers before noon, then a slight chance of rain showers between noon and 5pm, then a slight chance of rain and snow showers after 5pm.  Snow level 8000 feet. Partly sunny, with a high near 50. Light west southwest wind becoming west 5 to 10 mph in the afternoon.  Chance of precipitation is 20%.

    Isolated
    Rain/Snow

    High: 50 °F

  • Monday
    Night

    Monday Night: Widespread frost after midnight.  Otherwise, mostly clear, with a low around 25. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Mostly Clear
    then Frost

    Low: 25 °F

  • Tuesday

    Tuesday: Widespread frost before 10am.  Otherwise, sunny, with a high near 51. Calm wind becoming west southwest around 5 mph in the afternoon.

    Frost then
    Sunny

    High: 51 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 27. West wind around 5 mph becoming calm  in the evening.

    Mostly Clear

    Low: 27 °F

  • Wednesday

    Wednesday: Widespread frost between 7am and 8am.  Otherwise, mostly sunny, with a high near 58. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    Frost then
    Mostly Sunny

    High: 58 °F

  • Wednesday
    Night

    Wednesday Night: Widespread frost after 2am.  Otherwise, partly cloudy, with a low around 26. West wind 5 to 9 mph.

    Partly Cloudy
    then Frost

    Low: 26 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 57.

    Mostly Sunny

    High: 57 °F

  • Thursday
    Night

    Thursday Night: Widespread frost after 1am.  Otherwise, partly cloudy, with a low around 28.

    Partly Cloudy
    then Frost

    Low: 28 °F

Detailed Forecast

Tonight
Scattered showers, mainly before 11pm. Widespread frost after 2am. Snow level 9500 feet lowering to 8000 feet after midnight . Otherwise, partly cloudy, with a low around 28. Light and variable wind. Chance of precipitation is 40%.
Monday
A slight chance of rain and snow showers before noon, then a slight chance of rain showers between noon and 5pm, then a slight chance of rain and snow showers after 5pm. Snow level 8000 feet. Partly sunny, with a high near 50. Light west southwest wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Widespread frost after midnight. Otherwise, mostly clear, with a low around 25. West northwest wind 5 to 8 mph becoming calm in the evening.
Tuesday
Widespread frost before 10am. Otherwise, sunny, with a high near 51. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 27. West wind around 5 mph becoming calm in the evening.
Wednesday
Widespread frost between 7am and 8am. Otherwise, mostly sunny, with a high near 58. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Widespread frost after 2am. Otherwise, partly cloudy, with a low around 26. West wind 5 to 9 mph.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Widespread frost after 1am. Otherwise, partly cloudy, with a low around 28.
Friday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 32.
Sunday
A chance of rain and snow showers. Widespread frost. Otherwise, partly sunny, with a high near 57.
Click Map For Forecast
Point Forecast:
Norris WY
 44.74°N 110.71°W (Elev. 7572 ft)
6:45 pm MDT Sep 23, 2018
9pm MDT Sep 23, 2018-6pm MDT Sep 30, 2018
 
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Additional Resources

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