Weather Service Report


877 
FXUS65 KGGW 300927
AFDGGW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
327 AM MDT THU JUL 30 2015

.SHORT TERM...FOR NORTHEAST MONTANA...TODAY THROUGH SATURDAY...
A FEW ISOLATED SHOWERS ARE EXITING INTO NORTH DAKOTA VERY EARLY
THIS MORNING PER RADAR OBSERVATIONS. OTHERWISE EXPECT A DRY DAY
WITH AMPLE SUNSHINE AND DRY CONDITIONS AS HIGH PRESSURE BUILDS
INTO THE REGION.

AN UPPER RIDGE FIRMLY IN PLACE ACROSS THE WESTERN U.S. WILL HELP
PUSH NORTHWEST FLOW ALOFT ACROSS THE FORECAST AREA ALL WHILE
MAINTAINING DRY CONDITIONS THANKS TO LARGE SCALE SUBSIDENCE.
LATEST 00Z GUIDANCE HAS WARMING 850MB TEMPERATURES INTO THE START
OF THE WEEKEND...RANGING FROM +22C TO +28C FROM NORTHEAST TO
SOUTHWEST. EFFICIENT MIXING SHOULD THUS ALLOW HIGH TEMPERATURES BY
SATURDAY TO REACH THE 90S. USUAL WARMER SPOTS IN THE YELLOWSTONE
VALLEY MAY SEE HIGHS IN THE MID AND UPPER 90S. MALIAWCO

.LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...
AN UPPER RIDGE WILL BE OVER MONTANA THE ENTIRE PERIOD WITH
TEMPERATURES THAT WILL BE AT OR SLIGHTLY ABOVE NORMAL. SUNDAY WILL
BE DRY. THEN...A SERIES OF SHORTWAVES ARE EXPECTED TO MOVE ACROSS
THIS RIDGE BETWEEN MONDAY AND THURSDAY WHICH WILL COMBINE WITH A
QUASI-STATIONARY FRONT IN OR JUST TO THE WEST OF THE FORECAST AREA
TO BRING FREQUENT CHANCES FOR SHOWERS AND THUNDERSTORMS. WILL
BROADBRUSH A CHANCE OR SLIGHT CHANCE OF THUNDERSTORMS FROM MONDAY
AND BEYOND AS MODELS TIME THE WAVES DIFFERENTLY AND DIFFER ON THE
ORIENTATION OF THE RIDGE AXIS. FORRESTER


&&

.AVIATION...
FLIGHT CATEGORY: VFR.

SYNOPSIS: UPPER RIDGING WILL MAKE FOR EXCELLENT FLYING WEATHER
OVER THE NEXT 24 HOURS. 

CIGS: PERIODS OF SCT-FEW MID TO HIGH LEVEL CLOUDS.

VIS: UNRESTRICTED. 

WIND: VARIABLE 5 TO 10 KNOTS EARLY THIS MORNING WILL BECOME NORTHWEST
5 TO 15 KNOTS BY 18Z TODAY. WINDS WILL BECOME LIGHT AND VARIABLE
THIS EVENING.

&&

.GLASGOW WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

WEATHER.GOV/GLASGOW



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