Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 301453
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
853 AM MDT THU JUL 30 2015

.SYNOPSIS...A RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE REGION
THROUGH THE END OF THE WEEK...THEN SHIFT EASTWARD EARLY NEXT WEEK.
MOISTURE WILL SLOWLY INCREASE ACROSS SOUTHERN UTAH TODAY AND
FRIDAY...THEN SPREAD SLOWLY NORTHWARD LATE IN THE WEEKEND.


&&

.DISCUSSION...AN UPPER-LEVEL RIDGE AXIS STRETCHES FROM THE
SOUTHERN PLAINS WESTWARD ACROSS UTAH AND NEVADA...LEADING TO
RATHER WEAK FLOW ALOFT. A STRONG GRADIENT IN PWAT EXISTS ACROSS
SOUTHERN UTAH...WITH VALUES LESS THAN 0.5" OVER THE NORTHERN 3/4
OF THE STATE AND VALUE GREATER THAN 1.0" OVER THE FAR SOUTHEAST.
MODEL GUIDANCE PROJECTS A GRADUAL ICNREASE IN PWAT OVER THE SOUTH
TODAY AND THIS IS SUPPORTED BY A PLUME OF MID- AND UPPER-LEVEL
MOISTURE ADVANCING NORTHWARD FROM ARIZONA...BUT INCREASES IN LOW-
LEVEL MOISTURE MAY BE HARDER TO COME BY. NO SIGNIFICANT DYNAMICAL
LIFTING MECHANISMS ARE NOTED OVER THE REGION...SO ANY SHOWERS OR
STORMS SHOULD REMAIN UNORGANIZED AND SHORT LIVED. CONSIDERING ALL
THESE FACTORS...NO CHANGES WERE MADE TO THE FORECAST...WHICH CALLS
FOR SLIGHT CHANCE POPS OVER THE SOUTHEAST THIS AFTERNOON AND
EVENING...AND DRY CONDITIONS ELSEWHERE.

&&

.AVIATION...NORTHERLY WINDS WILL PREVAIL AT THE SLC TERMINAL
THROUGH THE TAF PERIOD. HOWEVER...THERE IS A 20 PERCENT CHANCE THAT
WINDS WILL SHIFT TO SOUTHEAST BETWEEN 11 AND 15Z THEN BACK TO
NORTHWEST AFTER 15Z TUESDAY. NO OTHER METEOROLOGICAL CONCERNS.

&&

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

$$

PUBLIC...RUTZ
AVIATION...STRUTHWOLF

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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