471
FXUS65 KSLC 190257
AFDSLC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
858 PM MDT FRI JUL 18 2008
SYNOPSIS
A DRIER WESTERLY FLOW WILL BE OVER THE FORECAST AREA
TONIGHT INTO SATURDAY. HIGH PRESSURE WILL SHIFT EAST SUNDAY ALLOWING
DEEP MOISTURE TO RETURN TO MUCH UTAH THROUGH THE EARLY PORTION OF
NEXT WEEK.
DISCUSSION
DRYING HAS REACHED SOUTHERN AND EASTERN UT THIS
EVENING WITH DEWPOINT CHANGE CHART SHOWING 8-13 DEG F FALLS LAST
24HRS. LAST LONE TSTM IS SPUTTERING OUT NEAR FISH LAKE AT THIS TIME
AND EXPECT NO MORE CONVECTION THE REST OF THE NIGHT. UPDATED
FORECASTS TO REMOVE MOST POPS AND REDUCE CLOUDS REST OF THE NIGHT.
MOISTURE WILL REMAIN LIMITED OVER THE SOUTH SATURDAY WITH MAYBE AN
ISOLATED CELL OVER THE SOUTHERN MTS AND DRY AIR WILL REMAIN IN PLACE
OVER THE NORTH.
THE UPPER HIGH RECENTERS TO THE SOUTHERN PLAINS SAT NIGHT AND SUNDAY
ALLOWING A DEEP SOUTHERLY FLOW TO BRING MOISTURE BACK INTO THE
FORECAST AREA. THIS MOISTURE SURGE IS CURRENTLY MOVING INTO SRN AZ
AND SHOULD BE IN PLACE TO COME NORTH ONCE THE FLOW BACKS IN 24HRS OR
SO.
MOISTURE THEN REMAINS IN PLACE THRU THE NEXT 7 DAYS IN SPITE OF A
WEAK SHORT WAVE TROF RIPPLING THRU THE NRN ROCKIES ABOUT MID WEEK
AND TEMPORARILY VEERING THE FLOW TO WESTERLY.
NO ADDITIONAL UPDATES PLANNED.
AVIATION
SOUTHEAST NIGHTTIME WINDS WILL DEVELOP AT THE KSLC
TERMINAL BY 04Z AND PERSIST INTO SATURDAY MORNING. OTHERWISE...VFR
CONDITIONS WILL CONTINUE WITH CLEAR SKIES.
FIRE WEATHER
THE BREEZY WEST AND NORTHWEST WINDS OVER PORTIONS OF
NORTHERN UTAH ARE DROPPING OFF AND WINDS OVERNIGHT AND SATURDAY WILL
BE PRIMARILY TERRAIN FORCED. THE AIRMASS WILL REMAIN VERY DRY OVER
THE NORTH TONIGHT AND SATURDAY AND DRIER OVER THE SOUTH THAN THE
LAST SEVERAL DAYS. MOISTURE WILL RETURN NORTHWARD INTO SOUTHERN UTAH
SATURDAY NIGHT REACHING NORTHERN UTAH SUNDAY WITH GRADUALLY RISING
HUMIDITIES ACROSS THE ENTIRE AREA THROUGH MONDAY.
SLC WATCHES/WARNINGS/ADVISORIES
UT...NONE.
WY...NONE.
WILENSKY
FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)
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