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Hydrologic Outlook

Hydrologic Outlook

Hydrologic Outlook
National Weather Service La Crosse WI
840 PM CDT Fri Apr 19 2019

...Flooding possible along The Wisconsin River...
For the Wisconsin River the following locations are included:

Snowmelt and recent rainfall is expected to result in higher water
levels and possibly flooding by early next week along the Wisconsin
River near Muscoda.

Wisconsin River at Muscoda...The stage this evening was  5.91 feet.
Flood stage is 9.0 feet. The river is forecast to rise above flood
stage Tuesday morning, and reach  9.80 feet Wednesday morning. This
would result in Minor flooding, with additional rises expected



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:


Hydrologic Outlook

Hydrologic Outlook
National Weather Service Pocatello ID
1225 PM MDT Fri Apr 19 2019


Mild temperatures will combine with an incoming warm spring storm
this weekend to increase the melting rate of the mountain snow
pack. The combination of rain and snow melt will trigger rises
on nearly all rivers and creeks.

Both the Little Wood and Big Wood rivers are expected to go to
bankfull starting on Saturday and continuing unsteadily on Sunday.
The same conditions can be expected on the Big Lost river above
the Mackay Reservoir, which will prevent flooding below Mackay

If you are recreating or traveling in the high elevations this
coming weekend, be aware that all creeks and streams will be at
strong-moving flows into the coming work-week.

While temperatures may be warming up outside, rivers and lakes
take longer to warm. These waters are still very cold and
dangerous. Those planning recreation along these rivers and
streams should be aware of their surroundings. Body heat can be
lost 25 times faster in cold water than in cold air.


Hydrologic Outlook

Hydrologic Outlook
National Weather Service Missoula MT
1116 AM MDT Fri Apr 19 2019 /1016 AM PDT Fri Apr 19 2019/

...Heavy rain causing debris flows, rock slides and water to
impact area roads through Saturday morning...

Locally heavy rain is forecast for Friday evening and early
Saturday morning across the area. Three quarters to one inch of
rain is expected under the heavier downbursts of rain.

The main impact from the rain event is to area highways and county
roads across the area. Debris flows, rock slides and water flowing
across highways 12, 13, 14 and 95 are all possible Friday evening
into Saturday morning. Burned areas from previous years in the
Highway 12 corridor between Kooskia and Lowell could also produce
debris flows and may impact residents in those areas.


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