Regional Weather Synopsis
Issued by NWS Grand Junction, CO

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NZUS99 KGJT 081912
SYNGJT

FOR EASTERN UTAH AND WESTERN COLORADO, HERE IS THE LATEST WEATHER
SYNOPSIS.

HIGH PRESSURE CENTERED OVER THE GREAT BASIN WILL ALLOW AVAILABLE
MOISTURE TO BE RECYCLED. DAYTIME HEATING AND WEAK DISTURBANCES WILL
INTERACT WITH THE MOISTURE TO BRING A CHANCE OF SHOWERS AND
THUNDERSTORMS, MAINLY ACROSS THE SOUTH THROUGH THIS EVENING. STORMS
WILL FIRST DEVELOP OVER THE HIGHER TERRAIN, THEN DRIFT INTO LOWER
VALLEYS LATER IN THE DAY. TEMPERATURES WILL CONTINUE AT SEASONAL TO
SLIGHTLY ABOVE NORMAL LEVELS.

HIGH PRESSURE WILL SHIFT SOUTHEAST OF THE FOUR CORNERS WEDNESDAY
THROUGH FRIDAY WHICH WILL ALLOW FOR A DEEPER SURGE OF SUBTROPICAL
MOISTURE TO ROTATE NORTHWARD FROM THE FOUR CORNERS, LEADING TO AN
INCREASE IN SHOWER AND THUNDERSTORM ACTIVITY AND COVERAGE. LOCALLY
HEAVY RAINFALL WILL BE POSSIBLE, INCREASING THE POTENTIAL FOR FLASH
FLOODING ACROSS MAINLY THE SOUTHERN HALF OF THE REGION.


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