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2 products issued by NWS for: 5 Miles ENE Vail CO
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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service GRAND JUNCTION CO
256 AM MDT Fri Jul 21 2017

COZ001>014-017>023-UTZ022>025-027>029-220900-
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-
256 AM MDT Fri Jul 21 2017

This hazardous weather outlook is for eastern Utah and western
Colorado.

.DAY ONE...Today and Tonight

A flash flood watch is in effect for the area this afternoon
through midnight tonight. Monsoonal moisture remains in place and
will bring an increase in thunderstorm coverage by the afternoon.
Flash flooding due to heavy rainfall will become more likely,
especially over areas that are already saturated from recent
rainfall and areas of steep terrain. Some storms will also be
capable of producing gusty outflow winds and small hail but every
storm will have the potential to create dangerous cloud to ground
lightning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Some drier air works in from the northwest on Saturday for a
downturn in storm activity this weekend into early next week.
Another surge of moisture moves in by the middle of next week,
increasing the thunderstorm coverage.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected today or tonight, however
spotters are encouraged to relay rainfall amounts or any observed
flooding to the National Weather Service in Grand Junction.

$$




Flash Flood Watch

Flood Watch
National Weather Service GRAND JUNCTION CO
252 AM MDT Fri Jul 21 2017

COZ001>014-017>023-UTZ022>025-027>029-212200-
/O.NEW.KGJT.FF.A.0003.170721T1800Z-170722T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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-
Including the cities of Rangely, Dinosaur, Craig, Hayden, Meeker,
Rio Blanco, Columbine, Hahns Peak, Toponas, Steamboat Springs,
Grand Junction, Fruita, Palisade, Collbran, De Beque, New Castle,
Mesa, Parachute, Rifle, Silt, Eagle, Edwards, Glenwood Springs,
Carbondale, Basalt, Aspen, Vail, Snowmass, Montrose, Hotchkiss,
Delta, Crested Butte, Taylor Park, Marble, Buford, Trappers Lake,
Gunnison, Cimarron, Ridgway, Glade Park, Telluride, Ouray,
Lake City, Silverton, Rico, Hesperus, Gateway, Nucla, Cortez,
Dove Creek, Mancos, Durango, Bayfield, Ignacio, Pagosa Springs,
Blanding, Manila, Dutch John, Vernal, Ballard, Moab,
Castle Valley, Monticello, Canyonlands National Park,
Dead Horse Point State Park, and Fry Canyon
252 AM MDT Fri Jul 21 2017

...FLASH FLOOD WATCH IN EFFECT FROM NOON MDT TODAY THROUGH THIS
EVENING...

The National Weather Service in GRAND JUNCTION has issued a

* Flash Flood Watch for portions of Colorado and Utah, including
  the following areas, in Colorado, Animas River Basin, Central
  Colorado River Basin, Central Gunnison and Uncompahgre River
  Basin, Central Yampa River Basin, Debeque to Silt Corridor,
  Elkhead and Park Mountains, Flat Tops, Four Corners/Upper
  Dolores River, Gore and Elk Mountains/Central Mountain
  Valleys, Grand Valley, Grand and Battlement Mesas, Lower Yampa
  River Basin, Northwest San Juan Mountains, Paradox
  Valley/Lower Dolores River, Roan and Tavaputs Plateaus, San
  Juan River Basin, Southwest San Juan Mountains, Uncompahgre
  Plateau and Dallas Divide, Upper Gunnison River Valley, Upper
  Yampa River Basin, and West Elk and Sawatch Mountains. In
  Utah, Arches/Grand Flat, Canyonlands/Natural Bridges, Eastern
  Uinta Basin, Eastern Uinta Mountains, La Sal and Abajo
  Mountains, Southeast Utah, and Tavaputs Plateau.

* From noon MDT today through midnight MDT tonight

* Scattered to numerous thunderstorms with heavy rain are expected
  over the watch area, developing by this afternoon and continuing
  through late this evening.

* Flash flooding due to heavy rainfall is possible, especially
  over already saturated soils and areas of steep terrain. Slot
  canyons, burn scars, and normally dry streams, washes and
  arroyos are most susceptible to flash flooding. Water can rise
  quickly downstream of heavy rain, even when a thunderstorm is
  miles away. Rock and mud slides, and high water flowing across
  roads, are also possible which could impact travel.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$




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NOAA National Weather Service
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Silver Spring, MD 20910
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Page last modified: May 16, 2007
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