Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 260404
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1003 PM MDT FRI JUL 25 2014

.SYNOPSIS...MOISTURE ACROSS SOUTHERN AND CENTRAL UTAH TONIGHT AND
SATURDAY WILL SLOWLY WORK ITS WAY NORTHWARD FOR THE BEGINNING OF
NEXT WEEK.

&&

.DISCUSSION...INCREASING MOISTURE ACROSS SOUTHERN AND CENTRAL UTAH
LED TO INCREASED THUNDERSTORM ACTIVITY TODAY. NORTHERN UTAH WAS KEPT
ON THE DRIER AND MORE STABLE SIDE BY THE WEAK FRONTAL BOUNDARY
STALLED ACROSS CENTRAL UTAH. LAST SIGNIFICANT CLUSTER OF STORMS IS
CURRENTLY MOVING ACROSS EAST-CENTRAL AND NORTHEAST UTAH THIS
EVENING...WITH ACTIVITY WANING BEHIND IT DUE TO LACK OF ANY
SIGNIFICANT FORCING MECHANISM.

MODELS BULGE THE RIDGE A BIT TO THE WEST TOMORROW...WHILE A
SHORTWAVE TROUGH TRACKS ACROSS NORTH DAKOTA. THIS WILL SHIFT THE
ORIENTATION OF THE RIDGE ENOUGH TO KEEP A DRY WESTERLY FLOW ACROSS
NORTHERN UTAH EVEN AS THE SURFACE BOUNDARY WASHES OUT TOMORROW. THUS
EXPECT MUCH OF THE SAME TOMORROW IN TERMS OF CONVECTION AS PWATS
REMAIN CLOSE TO OR JUST OVER AN INCH ACROSS SOUTHERN AND CENTRAL
UTAH. MOISTURE IS EXPECTED TO START SPREADING INTO THE NORTH ON
SUNDAY WITH A STRONGER SURGE EXPECTED ON MONDAY.

UPDATED FORECAST TO TREND POPS DOWNWARD FOR THE REST OF THE EVENING
AND MADE MINOR ADJUSTMENTS TO WIND.

&&

.AVIATION...VFR CONDITIONS ARE EXPECTED THROUGHOUT THE EVENING AT
THE SLC TERMINAL. SOUTHEAST ARE EXPECTED TO BECOME ESTABLISHED BY
05Z.

&&

.FIRE WEATHER...A FIRE WEATHER WATCH IS IN EFFECT FOR ZONE 492 IN
WEST CENTRAL UTAH FOR TOMORROW AFTERNOON/EVE AS AREAL COVERAGE OF
MOSTLY DRY THUNDERSTORMS IS EXPECTED TO REMAIN SIMILAR TO TODAY OR
EVEN INCREASE SLIGHTLY. THIS THREAT COULD CONTINUE ACROSS ZONE 492
AND POSSIBLY PORTIONS OF 478 ON SUNDAY BUT SURFACE MOISTURE SHOULD
ALLOW STORMS TO TREND MORE WET BY THAT TIME. WILL CONTINUE TO
MONITOR THIS THREAT CLOSELY.

AN UPPER LEVEL FEATURE WILL TRACK ACROSS WESTERN UTAH MONDAY
SPREADING DEEP MOISTURE TO ALL AREAS...AND ALLOWING FOR A GREATER
WETTING RAIN POTENTIAL WITH STORM ACTIVITY AT THAT TIME.

WINDS AFTER TODAY WILL TREND LIGHTER AS FLOW ALOFT DECREASES LATER
TOMORROW INTO EARLY NEXT WEEK. OUTSIDE OF LOCALIZED AREAS LIGHT
DIURNALLY DRIVEN SLOPE FLOWS LOOK TO BE THE NORM.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...FIRE WEATHER WATCH FROM SATURDAY AFTERNOON THROUGH SATURDAY
     EVENING FOR UTZ492.

WY...NONE.
&&

$$

CHENG

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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