980
FZUS73 KAPX 172218
MWSAPX

Marine Weather Statement
National Weather Service Gaylord MI
618 PM EDT Mon Jun 17 2024

LSZ321-322-172315-
618 PM EDT Mon Jun 17 2024

...WATER LEVEL FLUCTUATIONS ON THE ST. MARY`S RIVER...

Water level gauges on the St. Mary`s River are indicating rapidly
changing water levels due to an air pressure jump/fall that occurred
with a decaying thunderstorm outflow boundary.

Several cycles of water level falls and rises are likely between 6
PM and 10 PM. Largest changes in water levels...up to 3 feet or
more...can be expected on upper portions of the river from Point
Iroquois to the locks at Sault Ste. Marie.  Water level changes up
to one foot can be expected from below the Sault locks to Munuscong
Lake.

Mariners should be aware of rapidly rising and falling water
levels...particularly for operators above the Sault locks.  Be sure
to monitor marine radio for information on this situation.

&&

LAT...LON 4663 8477 4646 8454 4653 8413 4619 8408
      4606 8395 4612 8382 4612 8363 4599 8344
      4610 8372 4609 8370 4608 8369 4597 8391
      4622 8434 4631 8427 4645 8435 4636 8456
      4643 8466 4648 8502 4672 8501 4680 8483

$$

BAK