907
FXUS65 KSLC 161600
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1000 AM MDT WED OCT 16 2013
.SYNOPSIS...A GENERALLY DRY NORTHWESTERLY FLOW WILL DEVELOP FOR
THE NEXT WEEK.
&&
.DISCUSSION...THE TROUGH THAT IMPACTED THE INTERMOUNTAIN WEST OVER
THE LAST COUPLE DAYS IS FINALLY EXITING THE REGION TODAY...LEAVING
A COOL AND STABLE NORTHWESTERLY FLOW OVER THE GREAT BASIN. THIS
HAS ALLOWED CLEAR SKIES TO DEVELOP ACROSS PRETTY MUCH ALL OF UTAH
AND SOUTHWEST WYOMING...LEADING TO A COLD MORNING...WITH BELOW
FREEZING TEMPERATURES COMMON. INCREASING HIGH CLOUDS WILL BEGIN
MOVING IN FROM THE NORTH LATE THIS MORNING...SPREADING ACROSS MUCH
OF THE CWA BY THIS EVENING.
MOST HIGH TEMPERATURES THIS AFTERNOON SHOULD REMAIN ABOUT 10
DEGREES FAHRENHEIT BELOW CLIMATOLOGICAL NORMALS. WARMING OVER THE
NEXT FEW DAYS WILL BE MINIMAL...AS WEAK COLD ADVECTION WILL OCCUR
IN THE LOWER LEVELS...WITH WEAK SHORTWAVES MOVING THROUGH THE
REGION IN THE NORTHWESTERLY FLOW. THESE SHORTWAVES WILL BE
PRIMARILY DRY...BUT ENOUGH LOW LEVEL MOISTURE MAY MOVE THROUGH ON
THURSDAY TO ALLOW FOR ISOLATED SHOWERS OVER THE HIGHER TERRAIN IN
THE NORTH.
THIS COOL NORTHWEST FLOW LOOKS TO REMAIN QUITE PERSISTENT IN THE
EXTENDED...AS THE LONGWAVE PATTERN SHOWS NO SIGN OF CHANGING
SIGNIFICANTLY THROUGH AT LEAST DAY 7.
THE FORECAST FOR TODAY LOOKS TO BE IN GOOD SHAPE AND NO UPDATES
ARE PLANNED FOR THIS MORNING.
&&
.AVIATION...OPERATIONAL WEATHER CONCERNS ARE EXPECTED TO REMAIN
MINIMAL AT THE KSLC TERMINAL THROUGH THE VALID TAF PERIOD. SOUTHEAST
WINDS WILL SWITCH TO NORTHWEST BETWEEN 18-20Z WITH SPEEDS IN
EXCESS OF 8 KNOTS OCCURRING WITHIN 1 OR 2 HOURS AFTER THE SWITCH.
THERE IS A 20 PERCENT CHANCE THAT WINDS WILL SWITCH TO LIGHT
NORTHWEST AS EARLY AS 17Z.
&&
.SLC WATCHES/WARNINGS/ADVISORIES...
UT...NONE.
WY...NONE.
&&
$$
PUBLIC...SCHOENING
AVIATION...VERZELLA
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)