Area Forecast Discussion
Issued by NWS Great Falls, MT

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FXUS65 KTFX 281713
AFDTFX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
1110 AM MDT TUE JUL 28 2015

UPDATED AVIATION SECTION

.UPDATE...

ONLY SIGNIFICANT UPDATE THIS MORNING IS TO DECREASE CLOUDS AND
SHOWERS ACROSS NORTH CENTRAL MONTANA BASED UPON CURRENT TRENDS AS
THE UPPER LOW CONTINUES TO MOVE OUT OF THE AREA. HAVE ALSO
ADJUSTED WINDS UP A FEW MPH, AGAIN BASED UPON CURRENT CONDITIONS.
CURRENT FORECAST TEMPERATURES APPEAR TO BE TRENDING OK.  COULSTON

&&

.AVIATION...
UPDATED 1710Z.

VFR CONDITIONS EXPECTED THROUGH AT LEAST 18Z WEDNESDAY. A STRONG LOW
PRESSURE SYSTEM OVER SOUTHERN SASKATCHEWAN WILL CONTINUE TO MOVE
EAST THROUGH THE PERIOD, TAKING MOST OF THE CLOUD COVER AND SHOWERS
WITH IT. HOWEVER, WEAK INSTABILITY THIS AFTERNOON WILL ALLOW
SCATTERED TO BROKEN MID LEVEL CLOUDINESS TO PERSIST ACROSS THE AREA.
A FEW SHOWERS/WEAK THUNDERSTORMS MAY DEVELOP BETWEEN 18Z AND 02Z
ACROSS THE EASTERN TERMINALS (KHVR KLWT) CLOSE TO THE SYSTEM AND
OVER THE MOUNTAIN AREAS. BREEZY AND GUSTY NORTHWEST WINDS WILL ALSO
CONTINUE THROUGH THIS TIME, AGAIN ESPECIALLY ACROSS THE EASTERN
TERMINAL AREAS. CLOUDS, SHOWERS AND WINDS WILL DIMINISH AFTER 02Z
WITH THE LOSS OF DAYTIME HEATING AND THE CONTINUED EXIT OF THE
WEATHER SYSTEM.  COULSTON

&&

.HYDROLOGY...
A FLASH FLOOD WATCH CONTINUES FOR BLAINE, HILL, AND PART OF
CHOUTEAU COUNTY UNTIL NOON. MOST OF THE RAIN HAS EXITED THE
FORECAST AREA AS OF 10 AM MDT. HOWEVER, THERE MAY STILL BE SOME
LAG BETWEEN THE END OF THE PRECIPITATION AND THE LOWERING OF
POTENTIAL FLOODING. HAVE NOT RECEIVED ANY REPORTS OF FLOODING AS
OF YET, BUT WILL MAKE CALLS TO LOCAL LAW ENFORCEMENT AND
DISASTER/EMERGENCY OFFICIALS BEFORE MAKING A DECISION ON THE
WATCH.

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  71  51  80  53 /  10   0   0   0
CTB  72  50  79  50 /  10   0   0   0
HLN  71  49  81  53 /  10   0   0   0
BZN  70  47  80  51 /  10   0   0   0
WEY  62  31  72  36 /  20   0   0   0
DLN  67  43  78  48 /  10   0   0   0
HVR  72  51  82  53 /  20  10   0   0
LWT  69  49  78  53 /  20  10   0   0

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL NOON MDT TODAY FOR MTZ011-013-047.

&&

$$

WEATHER.GOV/GREATFALLS


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