873
WGUS65 KMSO 211527
FFAMSO
URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE MISSOULA MT
927 AM MDT MON AUG 21 2023
MTC029-047-053-061-089-220600-
/O.EXB.KMSO.FA.A.0007.000000T0000Z-230822T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLATHEAD-LAKE-LINCOLN-MINERAL-SANDERS-
927 AM MDT MON AUG 21 2023
..FLOOD WATCH IN EFFECT THROUGH THIS EVENING
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE.
* WHERE...PORTIONS OF NORTHWEST AND WEST CENTRAL MONTANA, INCLUDING
THE FOLLOWING COUNTIES, IN NORTHWEST MONTANA, FLATHEAD, LAKE,
LINCOLN AND SANDERS. IN WEST CENTRAL MONTANA, MINERAL.
THIS INCLUDES THE FOLLOWING SPECIFIC AREAS...
KALISPELL, HOT SPRINGS, THOMPSON FALLS, GOING-TO-THE-SUN ROAD IN
GLACIER PARK, BOULDER 2700 FIRE BURN AREA NEAR FLATHEAD LAKE AND
THORNE CREEK FIRE BURN AREA.
* WHEN...THROUGH THIS 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...
- PERIODS OF MODERATE TO HEAVY RAIN ARE POSSIBLE, WITH ENHANCED
RAINFALL RATES DUE TO EMBEDDED THUNDERSTORMS AND TROPICAL
RAIN PROCESSES.
- HTTPS://WWW.WEATHER.GOV/MSO/HYDROLOGY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
IDZ005>008-220600-
/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-
827 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 RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
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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