Alert archive / Utah / Heavy Snow Warnings in 2007

Heavy Snow Warning 10, NWS Salt Lake City, UT

December 20, 2007

NWS Salt Lake City, UT issued this heavy snow warning at Dec 20, 2007, 11:42 AM MST. It took effect at Dec 20, 2007, 6:00 PM MST. It was in force for 17 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 20, 2007, 11:42 AM MST (18:42 UTC)
In effect from
Dec 20, 2007, 6:00 PM MST
Expired
Dec 21, 2007, 11:00 AM MST
In force
17 hr
Issued by
NWS Salt Lake City, UT

What forecasters said that day

The local office's own words before this heavy snow warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Salt Lake City, UT wrote its last area forecast discussion before this heavy snow warning went out at Dec 20, 9:25 AM MST, 2 hours 17 minutes earlier.

Area forecast discussion, Dec 20, 9:25 AM MST, 2 hours 17 minutes before
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Hazardous weather outlook, Dec 20, 6:07 AM MST, 5 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
607 AM MST THU DEC 20 2007

UTZ001>016-019>021-517-518-WYZ021-211000-
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-
607 AM MST THU DEC 20 2007

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

.DAY ONE...TODAY AND TONIGHT

AREAS OF MOUNTAIN SNOW AND VALLEY RAIN OR SNOW WILL CONTINUE TODAY
ACROSS NORTHERN UTAH. THE RAIN WILL CHANGE TO SNOW THIS EVENING AND
SPREAD SOUTH FOR THE WESTERN UTAH VALLEYS AND ADJACENT MOUNTAINS OF
CENTRAL AND SOUTHERN UTAH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SNOW WILL DECREASE FRIDAY FOR ALL AREAS WITH A VERY COLD AIRMASS
MOVING INTO THE OUTLOOK AREA.

A FAST-MOVING PACIFIC WEATHER DISTURBANCE WILL RACE ACROSS NORTHERN
UTAH SATURDAY NIGHT THROUGH EARLY SUNDAY. THIS WEATHER SYSTEM COULD
PRODUCE SEVERAL INCHES OF SNOW IN THE FAR NORTHERN MOUNTAINS.
ANOTHER STRONGER STORM SYSTEM COULD DEVELOP OVER THE AREA FOR
CHRISTMAS EVE THROUGH EARLY CHRISTMAS DAY. THIS STORM COULD RESULT
IN SIGNIFICANT SNOWFALL OVER THE MOUNTAINS AND MOST OF THE HIGHER
VALLEY LOCATIONS.

MONITOR FURTHER STATEMENTS ON THESE DEVELOPING WEATHER EVENTS IF YOU
PLAN TO TRAVEL THROUGH THE CHRISTMAS HOLIDAY.

.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)

The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 20, 5:30 AM MSTSnow and Blowing Snow AdvisorySLC31 hr
Dec 20, 5:30 AM MSTWinter Storm WatchSLC6 hr

Nearby

Heavy Snow Warnings in Utah, 2007Every heavy snow warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.