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Heavy Rains and Associated Flooding Across the Plains This Weekend

A slow-moving weather system with abundant moisture will bring heavy rainfall across portions of the Central and Southern Plains Saturday. Soils in the region are already saturated from recent rainfall, so flash flooding and river flooding is likely. Meanwhile, below normal temperatures settle over the northeast, with freeze warnings across much of New England into Saturday.
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Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874ft.

Overcast

67°F

19°C

Humidity 42%
Wind Speed ESE 9 MPH
Barometer 29.89 in (1012.1 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 22 May 6:53 pm MDT
Extended Forecast for

10 Miles ENE East Helena MT

  • Tonight

    Scattered Thunderstorms Chance for Measurable Precipitation 40%

    Scattered
    Thunderstorms

    Low: 45 °F

  • Saturday

    Showers Likely Chance for Measurable Precipitation 70%

    Showers
    Likely

    High: 64 °F

  • Saturday
    Night

    Chance Showers Chance for Measurable Precipitation 40%

    Chance
    Showers

    Low: 42 °F

  • Sunday

    Chance Showers Chance for Measurable Precipitation 30%

    Chance
    Showers

    High: 66 °F

  • Sunday
    Night

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    Low: 41 °F

  • Memorial
    Day

    Slight Chance Showers Chance for Measurable Precipitation 20%

    Slight Chc
    Showers

    High: 71 °F

  • Monday
    Night

    Chance Showers Chance for Measurable Precipitation 30%

    Chance
    Showers

    Low: 44 °F

  • Tuesday

    Chance Showers

    Chance
    Showers

    High: 72 °F

  • Tuesday
    Night

    Chance Showers

    Chance
    Showers

    Low: 44 °F

Detailed Forecast

Tonight
Scattered showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 45. North wind 5 to 11 mph. Chance of precipitation is 40%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 64. North wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 40 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 42. North northeast wind 5 to 10 mph becoming light and variable after midnight.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 66. North wind 3 to 7 mph. Chance of precipitation is 30%.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41. North northeast wind around 5 mph becoming light and variable after midnight.
Memorial Day
A 20 percent chance of showers. Mostly sunny, with a high near 71.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 72.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 66.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 67.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 64.
  Click Map For Forecast
Point Forecast:
10 Miles ENE East Helena MT
 46.65°N 111.75°W (Elev. 3862 ft)
2:13 pm MDT May 22, 2015
8pm MDT May 22, 2015-6pm MDT May 29, 2015
 
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