Flood Potential Outlook
Issued by NWS Spokane, WA

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FGUS76 KOTX 052150
ESFOTX
IDZ001>004-026-027-WAZ031>033-036-037-042-070130-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
150 PM PST THU FEB 5 2015

...WARM AND WET WEATHER EXPECTED TO CONTINUE THROUGH THE WEEKEND...

A SERIES OF WARM WET PACIFIC STORM SYSTEMS WILL CONTINUE TO IMPACT
THE INLAND NORTHWEST FROM TODAY THROUGH THE WEEKEND. SEVERAL
ROUNDS OF MODERATE TO LOCALLY HEAVY RAINFALL ARE EXPECTED AS WELL
AS WARMER TEMPERATURES AND RISING SNOW LEVELS. SIGNIFICANT RISES
ARE EXPECTED ON AREA RIVERS AND STREAMS AND THERE IS THE POTENTIAL
FOR LOCALIZED STORMWATER FLOODING IN LOW LYING AND URBAN AREAS AS
WELL AS MINOR MUD SLIDES ON STEEP AND SPARSELY VEGETATED SLOPES.

RIVERS AND STREAMS IN EASTERN WASHINGTON AND NORTHERN IDAHO WILL
SEE RISES BEGINNING BEGINNING LATER TODAY. SNOW LEVELS WILL BE ON
THE RISE AS THE STORMS WILL ALSO BRING WARMER TEMPERATURES AND
WINDS. AREAS THAT WILL LIKELY SEE THE GREATEST RAINFALL INCLUDE
THE IDAHO PANHANDLE AND FAR EASTERN WASHINGTON. THIS EVENT WILL
HAVE A SIGNIFICANT RAIN SHADOW NEAR THE CASCADES...ALTHOUGH
RAINFALL AND SNOWMELT NEAR THE CREST WILL RESULT IN RISES ON
RIVERS AND STREAMS IN THE HIGHER ELEVATIONS.

RUNOFF FROM SNOWMELT AND RAIN COULD CAUSE MINOR FLOODING ON MAIN
STEM RIVERS DRAINING THE IDAHO PANHANDLE THIS WEEKEND AND INTO
EARLY NEXT WEEK. THE BIGGEST RISK OF MINOR FLOODING WILL OCCUR IN
THE COEUR D`ALENE BASIN. LOCALIZED FLOODING IS POSSIBLE IN LOW
LYING AND URBAN AREAS WHERE THERE IS POOR DRAINAGE OR WHERE STORM
DRAINS AND CULVERTS ARE PLUGGED WITH SNOW AND ICE.

THIS IS AN EVOLVING SITUATION. PERIODS OF STEADY RAIN THROUGH THE
NEXT SEVERAL DAYS IS A NEAR CERTAINTY FOR MOST OF THE AREA.
CONFIDENCE IN EXACT RAINFALL AMOUNTS AND RIVER LEVELS THROUGH THE
WEEKEND IS LOW TO MODERATE AT THIS TIME SO THOSE ALONG RIVERS AND
STREAMS OR IN IMPACTED AREAS SHOULD BE AWARE OF FUTURE
OUTLOOKS...WATCHES...OR WARNINGS FROM THE NATIONAL WEATHER
SERVICE.

TO VIEW CURRENT RIVER FORECASTS:
HTTP://WATER.WEATHER.GOV/AHPS2/INDEX.PHP?WFO=OTX



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