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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Junction CO
351 PM MDT Fri Jun 5 2020

Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-
Upper Gunnison River Valley-Uncompahgre Plateau and Dallas Divide-
Northwest San Juan Mountains-Southwest San Juan Mountains-
Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
351 PM MDT Fri Jun 5 2020

This hazardous weather outlook is for eastern Utah and western

.DAY ONE...This Afternoon and Tonight

Showers and storms will start increasing in coverage today ahead
of a strong system to our southwest. Ahead of this system,
surface winds will increase while dry conditions remain in place.
Red Flag Warnings remain in effect to account for these

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

The system will be moving over the forecast area Saturday
bringing rain, heavy at times, along with some thunderstorms. The
heavy rain will increase chances for flash flooding, especially
over canyon country and recent burn scars, so a Flash Flood Watch
is in effect for eastern Utah and southwest Colorado beginning
midnight tonight through 4 pm Saturday. Gusty winds and hail will
be possible through the day under the stronger thunderstorms.
Once the storm moves out, expect much cooler temperatures to
start the new work week.


Spotter activation will not be needed.


Flash Flood Watch

Flood Watch
National Weather Service Grand Junction CO
1004 AM MDT Fri Jun 5 2020

Northwest San Juan Mountains-Southwest San Juan Mountains-Paradox
Valley/Lower Dolores River-Four Corners/Upper Dolores River-Animas
River Basin-San Juan River Basin-Eastern Uinta Mountains-Eastern
Uinta Basin-
Including the cities of Ignacio, Silverton, Mancos, Bayfield, Ouray,
Manila, Fort Duchesne, Dove Creek, Jensen, Nucla, Lake City,
Randlett, Ballard, Dutch John, Telluride, Pagosa Springs, Cortez,
Hesperus, Vernal, Rico, Durango, and Gateway
1004 AM MDT Fri Jun 5 2020


The National Weather Service in Grand Junction has expanded the

* Flash Flood Watch to include portions of southwest Colorado and
  northeast Utah, including the following areas, in southwest
  Colorado, Animas River Basin, Four Corners/Upper Dolores River,
  Northwest San Juan Mountains, Paradox Valley/Lower Dolores River,
  San Juan River Basin and Southwest San Juan Mountains. In
  northeast Utah, Eastern Uinta Basin and Eastern Uinta Mountains.

* From late tonight through Saturday afternoon

* A potent storm system will bring significant moisture to eastern
  Utah and southwest Colorado late tonight into Saturday afternoon,
  increasing the threat for heavy rainfall and flash flooding.

* The flash flood threat poses the greatest risk for slot canyons,
  slick rock areas, normally dry washes, areas of steep terrain and
  over recent burn scars, including the 416 Fire.


A Flash Flood Watch means that conditions may develop that lead to
Flash Flooding. Flash Flooding is a very dangerous situation. You
should monitor later forecasts and be prepared to take action should
Flash Flood Warnings be issued. Remember...turn around, don`t drown!
Climb to higher ground!



Hydrologic Outlook

Hydrologic Outlook

Hydrologic Outlook
National Weather Service Grand Junction CO
409 PM MDT Tue Jun 2 2020

...Rivers and Streams Could Respond Quickly to Rainfall this

Abnormally high temperatures over an extended period have
accelerated the high elevation snow melt. Flows in area rivers,
streams, and creeks will continue to run at elevated levels as the
recent snowmelt and reservoir releases work downstream.
Significant flooding is NOT forecast at this time as many
waterways peak for the season this week into the the early

Rainfall is forecast Friday into Saturday. Rivers, streams and
creeks could react quickly and run near or slightly over bankfull
conditions causing localized lowland flooding due to the extra

Anyone planning to recreate on area waterways should maintain
awareness and use an abundance of caution in or near the water.



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
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