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NOUS45 KBYZ 050109
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MTZ029>034-036-037-040-042-056>058-063>068-138-139-141-169>173-
228-235-WYZ198-199-060115-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
609 PM MST SAT MAR 4 2023

...CHANGES TO MODERATE AND MAJOR FLOOD STAGES FOR 2023...

AFTER REVIEWING INFORMATION FROM THE FLOOD SEASON OF 2022 IT HAS 
BEEN DETERMINED, IN COORDINATION WITH LOCAL EMERGENCY OFFICIALS, 
THAT MODERATE AND MAJOR FLOOD STAGES CAN BE ESTABLISHED FOR 
SEVERAL RIVER GAUGE LOCATIONS WHERE PREVIOUSLY THERE WERE NONE 
ESTABLISHED. IN ONE LOCATION (BILM8) THE MAJOR FLOOD STAGE WILL BE
ADJUSTED LOWER.

NO CHANGES TO MINOR FLOOD STAGE ARE PLANNED AT THIS TIME FOR ANY 
RIVER FORECAST LOCATIONS. 

STARTING APRIL 15TH 2023, THE MODERATE AND MAJOR FLOOD STAGES WILL
BE AS FOLLOWS:

RIVER				FORECAST POINT	SITE ID		FLOOD STAGE
STILLWATER RIVER	ABSAROKEE		SRAM8		8.0 FEET (MODERATE)
												9.0 FEET (MAJOR)
YELLOWSTONE RIVER	CORWIN SPRINGS	CORM8	   12.0 FEET (MODERATE)
											   13.0 FEET (MAJOR)
YELLOWSTONE RIVER	LIVINGSTON		LIVM8	   10.5 FEET (MODERATE)
											   11.0 FEET (MAJOR)
YELLOWSTONE RIVER	BILLINGS		BILM8	   15.0 FEET (MAJOR)
CLARKS FORK
YELLOWSTONE RIVER	BELFRY			BFYM8	   10.0 FEET (MODERATE)
											   11.5 FEET (MAJOR)
CLARKS FORK
YELLOWSTONE RIVER	EDGAR			EDGM8	   10.0 FEET (MODERATE) 
											   11.5 FEET (MAJOR)

THE NATIONAL WEATHER SERVICE DEFINES FLOOD STAGE AS THE RIVER 
LEVEL THAT BEGINS TO IMPACT LIFE AND/OR PROPERTY. RIVER FLOOD 
WARNINGS WILL BE ISSUED BY THE NATIONAL WEATHER SERVICE IN 
BILLINGS WHEN THE RIVER LEVEL REACHES, OR IS EXPECTED TO REACH OR 
EXCEED, FLOOD STAGE. 

THESE RIVER FORECAST SITES CAN BE ACCESSED ON THE ADVANCED 
HYDROLOGIC PREDICTION SERVICE, OR AHPS. AHPS ALLOWS USERS TO SEE 
THE OBSERVED AND FORECAST DATA FOR POINTS ALONG RIVERS AND 
STREAMS, INCLUDING THE POINTS LISTED ABOVE. GRAPHICAL DISPLAY OF 
THIS INFORMATION CAN BE FOUND ON THE INTERNET AT, 
WATER.WEATHER.GOV/AHPS .

INFORMATION PROVIDED ON THE INTERNET INCLUDES:

	1) GRAPHS SHOWING CURRENT AND FORECAST RIVER LEVELS
	2) GRAPHS SHOWING CHANCES OR PROBABILITIES OF EXCEEDING CERTAIN
       LEVELS...FLOW AND VOLUME
	3) IMPACT INFORMATION WHICH IS A DESCRIPTION OF WHAT HAPPENS
       WHEN THE WATER REACHES CERTAIN LEVELS
	4) HISTORICAL CREST LEVELS AND DATES
	5) A MAP AND SOMETIMES PHOTOGRAPHS SHOWING THE LOCATION OF THE 
       GAGE
	6) FEMA NATIONAL FLOOD HAZARD MAPPING			

IF YOU HAVE ANY QUESTIONS OR COMMENTS ON THIS CHANGE, PLEASE CONTACT:

CORY MOTTICE 
WARNING COORDINATION METEOROLOGIST
NATIONAL WEATHER SERVICE - BILLINGS, MT
PHONE: 406-652-0851
EMAIL: CORY.MOTTICE@NOAA.GOV


$$