486
WGUS65 KMSO 211457
FFAMSO
FLOOD WATCH
NATIONAL WEATHER SERVICE MISSOULA MT
857 AM MDT MON AUG 21 2023
IDZ009-010-211600-
/O.EXP.KMSO.FA.A.0007.000000T0000Z-230821T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
857 AM MDT MON AUG 21 2023
..FLOOD WATCH WILL EXPIRE AT 9 AM MDT THIS MORNING
THE FLOOD WATCH WILL EXPIRE FOR A PORTION OF EAST CENTRAL IDAHO,
INCLUDING THE FOLLOWING AREAS, EASTERN LEMHI COUNTY AND WESTERN
LEMHI COUNTY.
IDZ005>008-230600-
/O.CON.KMSO.FA.A.0007.000000T0000Z-230823T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHERN CLEARWATER MOUNTAINS-SOUTHERN CLEARWATER MOUNTAINS-
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
757 AM PDT MON AUG 21 2023
..FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY EVENING
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...PORTIONS OF CENTRAL AND NORTH CENTRAL IDAHO, INCLUDING THE
FOLLOWING AREAS, IN CENTRAL IDAHO, LOWER HELLS CANYON/SALMON RIVER
REGION, OROFINO/GRANGEVILLE REGION AND SOUTHERN CLEARWATER
MOUNTAINS. IN NORTH CENTRAL IDAHO, NORTHERN CLEARWATER MOUNTAINS.
THIS INCLUDES THE FOLLOWING SPECIFIC AREAS...
GRANGEVILLE, HIGHWAY 95 FROM RIGGINS TO WHITEBIRD, RIGGINS, SHEPP
RANCH NEAR THE SALMON RIVER, INDIAN CREEK NEAR THE SALMON RIVER,
MACKAY BAR NEAR THE SALMON RIVER, CHINA BAR, HIGHWAY 95 NORTH OF
RIGGINS AND WILLIAMS CREEK FIRE BURN AREA.
* WHEN...THROUGH TUESDAY EVENING.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF CREEKS,
STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS. BURN SCARS
AND FLOOD PRONE AREAS WILL BE AT RISK FOR ROCK, MUDSLIDE, DEBRIS
FLOWS. CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. FLOODING
MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS. LOW-WATER CROSSINGS
MAY BE FLOODED.
* ADDITIONAL DETAILS...
- NEAR RECORD LEVELS OF ATMOSPHERIC MOISTURE ASSOCIATED WITH
THE REMNANTS OF HURRICANE HILARY ARE FORECAST ACROSS
CLEARWATER AND IDAHO COUNTIES THROUGH TUESDAY. PERIODS OF
MODERATE TO HEAVY RAIN ARE POSSIBLE, WITH ENHANCED RAINFALL
RATES DUE TO EMBEDDED THUNDERSTORMS AND WARM RAIN PROCESSES.
- HTTPS://WWW.WEATHER.GOV/MSO/HYDROLOGY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD
WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED
TO TAKE ACTION SHOULD FLOODING DEVELOP.
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