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Hydrologic Outlook

Hydrologic Outlook

Hydrologic Outlook
National Weather Service Missoula MT
601 PM MDT Sun Apr 21 2019

...The Clark Fork River above Missoula is forecast to rise near
flood stage tonight...

Low lying areas near Kehrwald Drive and the north end of Tower
Street may start to see minor flooding late this evening and
overnight tonight as the Clark Fork River continues to rise. The
latest forecast shows the river to rise near 7.5 feet after
sunset tonight before slowly receding Monday morning.



411 PM EDT Sun Apr 21 2019 /311 PM CDT Sun Apr 21 2019/

...Ongoing flooding may worsen early this week...

A slow moving frontal boundary will result in periods of moderate
to at times heavy rain through early Tuesday. At this time, the
heavier rain and potential for more widespread flooding issues
through Monday evening is expected from western to north central
Upper Michigan. However, there is potential for moderate to heavy
rain to develop over the rest of Upper Michigan Monday night into
early Tuesday morning.

With rivers already running high and soils saturated, any rainfall
and snowmelt will only worsen ongoing flooding, especially in the
Lake Superior snowbelts where some areas still have significant
snow on the ground.

Those living in low-lying and flood prone locations could
experience basement flooding from the combination of melting snow
and expected rainfall. Anyone living near area waterways should
closely monitor water levels through early next week. Be sure to
report any roadway or structure flooding to local law enforcement,
emergency management, and/or the NWS.



Hydrologic Outlook

Hydrologic Outlook
National Weather Service Pocatello ID
1119 AM MDT Sun Apr 21 2019


Rainfall this Easter weekend will combine with a return to warming
temperatures early this week for continued mid and high elevation
snow melt. Several rivers and creeks in East Idaho are already at
or exceeding bankfull. Seepage and ponding in low lying areas
along the waterways is occurring. Continued runoff due to snow
melt and the recent rains is expected to produce rises in the
Henrys Fork, Snake and Blackfoot Rivers this week, as well as
tributaries to the Big Lost River. The Portneuf River and Big
Wood River also continue to see impacts in low lying areas along
the rivers.

Recreationists or those traveling through mid and higher
elevations are urged to remain cautious along waterways or water
crossings. The waters are swift and cold, and may be rising
through the week. Water levels may be higher at night as the melt
that occurs during the day makes its way into water channels at
night. Please keep children and pets away from the banks of all
rivers and streams.


Hydrologic Outlook

Hydrologic Outlook
National Weather Service Grand Junction CO
344 PM MDT Fri Apr 19 2019

...Rises on mid to lower elevation rivers and creeks possible through
this weekend...

Above normal temperatures, especially temperatures staying above
freezing at night, have allowed the snowpack at mid elevations to
melt at an accelerated rate.

At this time, rivers across eastern Utah and western Colorado are
not forecast to reach flood stage but rather just approach or
reach bankfull conditions.

Increases in river stages lead to much higher river flows making
for swift and unpredictable currents. Debris in the water could
create numerous snags. Water temperatures will be quite cold with
the introduction of the snowmelt.

If recreating or working in or near high flow waterways, use
appropriate safety gear. Unstable banks along fast moving
waterways may quickly give way and should be avoided.

Additional river and lake information is available at:


U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
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