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HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
553 AM MDT THU SEP 29 2016

UTZ001>016-019>021-517-518-WYZ021-301200-
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-
553 AM MDT THU SEP 29 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF
UTAH AND SOUTHWEST WYOMING.

.DAY ONE...TODAY AND TONIGHT

ISOLATED SHOWERS THIS MORNING WILL INCREASE IN AREAL COVERAGE THIS
AFTERNOON...WITH ISOLATED THUNDERSTORMS POSSIBLE. LOCALLY HEAVY
RAINFALL IS POSSIBLE ACROSS SOUTHERN UTAH. LOCAL AREAS OF FLASH
FLOODING COULD DEVELOP...ESPECIALLY IN THE NORMALLY PRONE AREAS
SUCH AS DRY WASHES AND NARROW CANYONS.

THE SHOWER AND THUNDERSTORM ACTIVITY WILL TREND DOWNWARD DURING
THE EVENING...WITH LINGERING SHOWERS AND STORMS ACROSS THE EASTERN
HALF OF THE OUTLOOK AREA LATE TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

MOISTURE REMAINING ACROSS THE OUTLOOK AREA WILL FUEL ADDITIONAL
SHOWERS AND THUNDERSTORMS ON FRIDAY. MOST OF THIS ACTIVITY WILL
REMAIN TIED TO THE HIGHER TERRAIN DURING THE AFTERNOON AND EARLY
EVENING HOURS.

A COLD AND ENERGETIC PACIFIC STORM SYSTEM WILL REACH THE PACIFIC
NORTHWEST EARLY SATURDAY...THEN STRENGTHEN AS IT SETTLES SOUTHEAST
IN THE WESTERN GREAT BASIN EARLY NEXT WEEK. SHOWERS AND THUNDERSTORMS
THAT FORM OUT AHEAD OF THE MAIN STORM WILL CONCENTRATE OVER
NORTHWEST UTAH LATE IN THE WEEKEND. BREEZY SOUTHERLY WINDS WILL
ALSO SUPPORT ABOVE NORMAL TEMPERATURES ACROSS THE OUTLOOK AREA.

THE CENTER OF THE STORM SYSTEM WILL SETTLE INTO UTAH MONDAY.
WIDESPREAD PRECIPITATION IS EXPECTED...WITH NORTHERN AND CENTRAL
UTAH RECEIVING THE BRUNT OF THE HEAVIER PRECIPITATION. SNOW LEVELS
WILL LOWER SUBSTANTIALLY EARLY IN THE WEEK...LEADING TO SEVERAL
INCHES OF SNOW ACCUMULATION FOR THE NORTHERN MOUNTAINS.

THE SIGNIFICANTLY COLD AIR ASSOCIATED WITH THE STORM WILL DRIVE
TEMPERATURES WELL BELOW NORMAL BY TUESDAY. MANY AREAS WILL
EXPERIENCE TEMPERATURES RUNNING BETWEEN 10 AND 20 DEGREES BELOW
EARLY OCTOBER NORMS.

.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/ (ALL LOWER CASE)

FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT...
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX

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