weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

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.

$$

Hazardous Weather Outlook
National Weather Service El Paso Tx/Santa Teresa NM
1226 PM MDT Thu Jul 20 2017

NMZ401>417-TXZ418>424-211830-
Upper Gila River Valley-Southern Gila Highlands/Black Range-
Southern Gila Foothills/Mimbres Valley-
Southwest Desert/Lower Gila River Valley-Lowlands of the Bootheel-
Uplands of the Bootheel-Southwest Desert/Mimbres Basin-
Eastern Black Range Foothills-Sierra County Lakes-
Northern Dona Ana County-Southern Dona Ana County/Mesilla Valley-
Central Tularosa Basin-Southern Tularosa Basin-
West Slopes Sacramento Mountains Below 7500 Feet-
Sacramento Mountains Above 7500 Feet-
East Slopes Sacramento Mountains Below 7500 Feet-Otero Mesa-
Western El Paso County-Eastern/Central El Paso County-
Northern Hudspeth Highlands/Hueco Mountains-Salt Basin-
Southern Hudspeth Highlands-
Rio Grande Valley of Eastern El Paso/Western Hudspeth Counties-
Rio Grande Valley of Eastern Hudspeth County-
1226 PM MDT Thu Jul 20 2017

This Hazardous Weather Outlook is for portions of south central
New Mexico, southwest New Mexico, and southwest Texas.

.DAY ONE...This Afternoon and Tonight.

Scattered thunderstorms through late evening. Main threat will be
heavy rain and flooding. Gusty winds of 50 mph are possible too.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Scatter thunderstorms, mainly afternoons and through late
evening. Main threat will continue to be heavy rain and flooding.
Gusty winds of 50 mph are possible too.


.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Hefner

Hazardous Weather Outlook
National Weather Service Albuquerque NM
353 AM MDT Thu Jul 20 2017

NMZ501>540-211100-
Northwest Plateau-Chuska Mountains-Far Northwest Highlands-
Northwest Highlands-West Central Plateau-West Central Mountains-
West Central Highlands-Southwest Mountains-
San Francisco River Valley-San Juan Mountains-Jemez Mountains-
West Slopes Sangre de Cristo Mountains-
Northern Sangre de Cristos above 9500 feet/Red River-
Southern Sangre de Cristos above 9500 feet-
East Slopes Sangre de Cristo Mountains-Upper Rio Grande Valley-
Lower Chama River Valley-Santa Fe Metro Area-
Middle Rio Grande Valley/Albuquerque Metro Area-
Lower Rio Grande Valley-Sandia/Manzano Mountains-Estancia Valley-
Central Highlands-South Central Highlands-Upper Tularosa Valley-
South Central Mountains-Raton Ridge/Johnson Mesa-
Far Northeast Highlands-Northeast Highlands-Union County-
Harding County-Eastern San Miguel County-Guadalupe County-
Quay County-Curry County-Roosevelt County-De Baca County-
Chaves County Plains-Eastern Lincoln County-Southwest Chaves County-
353 AM MDT Thu Jul 20 2017

This hazardous weather outlook is for portions of northern and
central New Mexico.

.DAY ONE...Today and Tonight

Scattered to numerous thunderstorms are expected to redevelop over
west central to southwestern New Mexico today. Some slow moving
storms could produce locally heavy rainfall this afternoon and into
the evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Storms are then expected to become more numerous day-by-day,
spreading farther north and east through the weekend and into early
next week. Storm motions will often remain slow and rainfall could
become locally heavy at times. This may lead to localized areas of
flash flooding. Some of the stronger storms may also produce small
hail and wind gusts to 50 mph.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report rainfall and any flooding through
the National Weather Service Albuquerque web site at weather.gov/abq
or by calling 1.888.386.7637. You can also submit storm reports and
photos on our Facebook page or via Twitter using the hashtag nmwx.

$$

52

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
316 AM MDT Thu Jul 20 2017

UTZ001>016-019>021-517-518-WYZ021-211100-
Cache Valley/Utah Portion-Northern Wasatch Front-
Salt Lake and Tooele Valleys-Southern Wasatch Front-
Great Salt Lake Desert and Mountains-Wasatch Mountain Valleys-
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Western Uinta Basin-Castle Country-San Rafael Swell-
Sanpete/Sevier Valleys-West Central Utah-Southwest Utah-
Utahs Dixie and Zion National Park-South Central Utah-
Glen Canyon Recreation Area/Lake Powell-Central Mountains-
Southern Mountains-Southwest Wyoming-
316 AM MDT Thu Jul 20 2017

This Hazardous Weather Outlook is for the western two thirds of
Utah and southwest Wyoming.

.DAY ONE...Today and Tonight

Showers and thunderstorms will form across much of the outlook
area again today. Heavy rain will be a possibility, leading to an
increased threat of flash flooding, especially along prone
drainages in southern and central Utah.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Drier air will spread into northern Utah Friday into Saturday,
but moisture will remain in place across southern through east-
central Utah where showers and thunderstorms will continue. Sunday
will likely be drier across most of the area.

More significant moisture will return to the entire outlook area
starting Monday, bringing an increased chance of showers and
thunderstorms for the first half of next week. Some of these
storms may produce heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

$$

For more information from NOAA/s National Weather Service visit...
http://weather.gov/saltlakecity

For information on potential road travel impacts visit...
http://www.udottraffic.utah.gov/roadweatherforecast.aspx

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE