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Weather and Hydro 2014 Outlook

In February 2014, Latah County is experiencing a period of wet, warm, and windy weather, leading to current flood hazards. Ponding water from rain and snowmelt is affecting ground that remains frozen, with storm drains and culverts blocked by ice and snow. The current snowpack is only 71% of normal in the Lake Pend Oreille Watershed, with Moscow recording its 20th driest fall in 120 years. With potential flooding concerns due to a series of storms and ongoing drought conditions, residents are encouraged to stay informed on weather updates.

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Weather and Hydro 2014 Outlook

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  1. Weather and Hydro2014 Outlook Latah County LEPC 2/13/2014 John Livingston National Weather Service, Spokane

  2. What’s happening now? Wet, Warm, and Windy!

  3. Current Flood Hazards • Ponding water from rain & snowmelt that can’t soak into frozen ground. • Storm drains & culverts plugged with ice & snow • Cumulative ponding from series of storms since ground is still frozen • Rises on creeks & Rivers. Stay up-to-date on new forecasts!

  4. Paradise Creek Palouse River

  5. Current Snowpack (% of Normal) Lake Pend Oreille Watershed

  6. Moscow Mountain Snow 71% of median SWE

  7. Departure from Normal Snow Depth

  8. Dry Fall! • For the Oct 1 – Jan 31 period • Moscow is 20thdriest in 120 years • Potlatch is DRIEST in 90 years

  9. National Drought Monitor Moderate Drought

  10. Long Range Weather Outlook ENSO “Neutral” Conditions Persist

  11. Long Range Weather Outlook Sea Surface Temperatures Departure from Normal

  12. 8-14 Day OutlookValid Feb 20-26 Temperature http://www.cpc.ncep.noaa.gov

  13. 8-14 Day OutlookValid Feb 20-26 Precipitation http://www.cpc.ncep.noaa.gov

  14. Mar – Apr – May OutlookTemperature

  15. Mar – Apr – May OutlookPrecipitation

  16. Summary • Short Term Forecast Biggest Concern with Potential Flooding • After a very dry fall, catching up on mountain snowpack.

  17. Stay Informed • weather.gov/spokane • Like us on Facebook National Weather Service Spokane • Follow us on Twitter @NWSSpokane #wawx #idwx • YouTube NWS Spokane

  18. Question?

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