Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 260402
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1002 PM MDT SAT JUL 25 2015

.SYNOPSIS...A DRY SOUTHWESTERLY FLOW ALOFT WILL PREVAIL ACROSS THE
REGION THROUGH SUNDAY. A DRY COLD FRONT WILL BRING MUCH COOLER
TEMPERATURES TO NORTHERN AND CENTRAL UTAH EARLY IN THE UPCOMING
WEEK. HIGH PRESSURE WILL FOLLOW FOR THE LATTER HALF OF THE WEEK
WITH MOISTURE POTENTIALLY RETURNING LATE IN THE WEEK.

&&

.DISCUSSION...THE DRY/STABLE SOUTHWEST FLOW CURRENTLY OVER
THE FORECAST AREA WILL PERSIST THROUGH SUNDAY. THE UNSEASONABLY
COLD/STRONG UPPER TROUGH CURRENTLY OVER BRITCOL WILL DIG SOUTH
INTO THE PACIFIC NORTHWEST LATE SUNDAY...THEN SWEEP EAST ACROSS
THE NORTHERN ROCKIES/NORTHERN GREAT BASIN EARLY IN THE UPCOMING
WEEK.

THE ASSOCIATED SURFACE COLD FRONT WILL ENTER NORTHWEST UTAH
EITHER LATE SUNDAY NIGHT OR VERY EARLY MONDAY MORNING. THIS FRONT
WILL PUSH DEEP INTO UTAH...REACHING SOUTHERN UTAH MONDAY EVENING.
MUCH COLDER TEMPERATURES RELATIVE TO SUNDAYS READINGS ARE EXPECTED
BY TUESDAY.

PRECIPITATION DOES NOT LOOK TO BE A AN ISSUE WITH THIS FRONT AND
THE ASSOCIATED TROUGH MOVING EAST THROUGH THE AREA. THE STRONG
LOW-LEVEL COLD ADVECTION ASSOCIATED WITH THIS FEATURE WILL LACK
MOISTURE AND WILL NOT HAVE THE THERMAL SUPPORT OF COLDER AIR IN
THE MID-LEVELS. A BRIEF PERIOD OF FAVORABLE DYNAMIC SUPPORT FOR
LIFT WILL EXIST ACROSS THE FAR NORTH MONDAY MORNING....BUT EVEN
THAT WILL NOT LIKELY BE SUFFICIENT FOR ANY SIGNIFICANT CONVECTION
OUTSIDE OF THE IDAHO BORDER REGION.

HIGH PRESSURE ALOFT WILL RETURN TO THE REGION BY MIDWEEK. TEMPS
WILL CLIMB BACK TO SEASONAL NORMS FOR THE LATTER HALF OF THE
WEEK. MOISTURE COULD ALSO MAKE A RETURN...FIRST ACROSS THE
SOUTHERN AND WESTERN GREAT BASIN AS THE HIGH PRESSURE BUILDS
INTO THE REGION...THEN OVER MUCH OF THE AREA LATE IN THE WEEK.

&&

.AVIATION...VFR CONDITIONS UNDER CLEAR SKIES WILL PREVAIL AT THE
KSLC TERMINAL THROUGH SUNDAY MORNING. SOUTHEAST DRAINAGE WINDS
HAVE DEVELOPED AT THE TERMINAL...AND WILL CONTINUE INTO EARLY
SUNDAY. SOUTHERLY WINDS WILL STRENGTHEN FOR LATE SUNDAY MORNING
THROUGH AT LEAST EARLY AFTERNOON.

&&

.FIRE WEATHER...SOUTHWESTERLY FLOW ALOFT WILL STRENGTHEN A BIT
SUNDAY...WHICH MAY RESULT IN SPOTTY CRITICAL FIRE WEATHER
CONDITIONS WHERE FUELS ARE DRY ACROSS PORTIONS OF SOUTHWEST
UTAH. A LIMITED AMOUNT OF MOISTURE WILL SPREAD INTO THE EASTERN
PORTIONS OF THE AREA SUNDAY AFTERNOON BRINGING A SMALL THREAT
FOR HIGH BASED CONVECTION. A COLD FRONT WILL SWEEP ACROSS THE
AREA DURING THE DAY MONDAY BRINGING MUCH COOLER TEMPERATURES TO
NORTHERN AND CENTRAL UTAH. AHEAD OF THIS FRONT GUSTY SOUTHWEST
WINDS WILL DEVELOP ACROSS SOUTH CENTRAL AND EAST CENTRAL
UTAH...WHERE HUMIDITY VALUES WILL LIKELY FALL INTO THE SINGLE
DIGITS. HIGH PRESSURE IS EXPECTED TO REDEVELOP DURING THE
MIDDLE TO LATTER PORTION OF NEXT WEEK ALLOWING FOR A WARMING
TREND...WITH MOISTURE POTENTIALLY RETURNING LATE IN THE WEEK.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...NONE.
WY...NONE.
&&

$$

PUBLIC/AVIATION...CONGER
FIRE WEATHER...SEAMAN

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

FOR FREQUENTLY ASKED QUESTIONS ABOUT THE AREA FORECAST DISCUSSION
VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/GENERAL/AFD_FAQS.PHP (ALL LOWER CASE)


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