Freeze Warning 1, NWS Salt Lake City, UT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
935 AM MDT MON SEP 24 2007

.SYNOPSIS...A COLD UPPER LOW WILL MOVE THROUGH THE REGION TODAY. DRY
CONDITIONS WITH SEASONAL TEMPERATURES WILL RETURN BY MIDWEEK.

&&

.DISCUSSION...COLD CORE OF THE UPPER LOW IS OVER THE GREAT SALT
LAKE THIS MORNING WITH CONVECTIVE SHOWERS FORMING ACROSS NORTHERN
UTAH. THE LOW WILL SLOWLY MOVE EAST TO NORTHERN COLORADO TONIGHT.
CLEARING SKIES TONIGHT WILL RESULT IN AREAS OF FROST AND FREEZE.
WILL UPDATE LATE THIS MORNING TO ISSUE THOSE HIGHLIGHTS. WARMER
SOUTHWEST FLOW RETURNS BY THURSDAY.

&&

.AVIATION...INSTABILITY SHOWERS UNDER THE COLD POOL ALOFT ASSOCIATED
WITH THE UPPER LOW WILL CONTINUE TO IMPACT THE KSLC TERMINAL THROUGH
ABOUT 22Z THIS AFTERNOON. THESE SHOWERS WILL KEEP CIGS BELOW 6000 FT
ALTHOUGH VFR CONDITIONS SHOULD PREVAIL. BOTH CIGS AND VSBYS COULD
BRIEFLY DIP INTO THE MVFR RANGE IN THE HEAVIER SHOWERS AND THERE
WILL CONTINUE TO BE A SLIGHT CHANCE OF A THUNDERSTORM THROUGH ABOUT
20Z. WINDS SHOULD STAY GENERALLY OUT OF THE NORTHWEST BUT DIRECTIONS
COULD BE ERRATIC NEAR THE SHOWERS.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...SNOW ADVISORY UNTIL NOON MONDAY FOR UTZ008-UTZ009-UTZ010-UTZ517.

WY...NONE.

&&

GIBSON/WILENSKY

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
411 AM MDT MON SEP 24 2007

UTZ001>016-019>021-517-518-WYZ021-251100-
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-
411 AM MDT MON SEP 24 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF
UTAH ALONG WITH FAR SOUTHWEST WYOMING.

.DAY ONE...TODAY AND TONIGHT

A COLD STORM SYSTEM WILL MOVE ACROSS THE REGION THIS
MORNING...BRINGING ACCUMULATING SNOWS TO THE HIGHER TERRAIN OF
NORTHERN AND CENTRAL UTAH. ADDITIONAL ACCUMULATIONS OF 1 TO 3
INCHES ARE EXPECTED ACROSS THIS AREA...AND A SNOW ADVISORY REMAINS
IN EFFECT UNTIL NOON.

TEMPERATURES ARE EXPECTED TO DIP INTO THE 30S ACROSS MOST VALLEYS
OF NORTHERN AND CENTRAL UTAH...WITH SOME LOCATIONS WITHIN THE CACHE
VALLEY...WASATCH MOUNTAIN VALLEYS AND UINTA BASIN FALLING BELOW
THE FREEZING MARK. FROST CAN BE EXPECTED ACROSS MOST NORTHERN AND
CENTRAL UTAH VALLEYS TONIGHT...WHICH MAY DAMAGE SENSITIVE PLANTS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A WARMING TREND IS EXPECTED THROUGH THE REMAINDER OF THE WEEK
ACROSS THE REGION...WITH TEMPERATURES RETURNING NEAR NORMAL. THE
NEXT COLD FRONT IS EXPECTED TO REACH THE AREA FRIDAY NIGHT.

.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)