FLOOD WARNING
Warning Issue Date: 554 PM MST THU DEC 31 2009
FLOODING WAS OCCURRING ALONG THE GALLATIN
RIVER. A MAJOR ICE JAM ON THE GALLATIN RIVER NEAR BIG SKY IS
CAUSING THE RIVER TO GO OVER ITS BANKS...ESPECIALLY ALONG HIGHWAY
191 AT RAINBOW RANCH ROAD.
AS OF 4 PM THURSDAY...THE ICE JAM WAS WORSENING...WITH NO
INDICATIONS OF THE ICE JAM BREAKING. WATER CONTINUES TO BACK UP
BEHIND THE ICE JAM AND MAY POSE PROBLEMS TO HOMES ALONG THE RIVER.
* IMPACTS...WHEN THE ICE JAM BREAKS...THERE IS THE POTENTIAL FOR A
SIGNIFICANT AMOUNT OF WATER TO RUSH DOWN THE GALLATIN RIVER
QUICKLY...CAUSING MORE FLOODING PROBLEMS DOWNSTREAM.
ADDITIONALLY...THERE IS THE POTENTIAL THAT DAMAGE COULD OCCUR
ALONG THE SHORELINE AND TO BRIDGES CROSSING THE GALLATIN
RIVER...FROM ICE AND OTHER DEBRIS WASHING DOWN THE RIVER.
ANYONE WHO LIVES ALONG THE GALLATIN RIVER FROM THREE FORKS TO BIG
SKY...SHOULD PREPARED TO MOVE QUICKLY SHOULD FLOODING OCCUR.
ANYONE WHO PLANS RECREATION ACTIVITY ON THE GALLATIN RIVER SHOULD BE
PREPARED FOR POSSIBLE ICE OR DEBRIS FLOW...WHEN THE ICE JAM BREAKS.
A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS IMMEDIATELY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
FLOOD WATERS ARE MOVING DOWN THE GALLATIN RIVER FROM BIG SKY TO
THREE FORKS. THE FLOOD WARNING WILL REMAIN IN EFFECT UNTIL THE ICE
JAM BREAKS.
LAT...LON 4524 11135 4543 11132 4566 11133 4567 11150
4579 11167 4589 11156 4597 11137 4611 11124
4606 11095 4539 11093 4538 11106 4469 11108
4478 11131
$$
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