Frost Advisory 12, NWS Medford, OR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
220 PM PDT FRI JUN 22 2007

.DISCUSSION...MODELS ARE IN AMAZING AGREEMENT THROUGH THE EXTENDED
TODAY. A SERIES OF WEAK BUT DRY COLD FRONTS CYCLE THROUGH THE
REGION...BRINGING REINFORCING SHOTS OF COOL AND STABLE MARINE
PUSHES. THE JET DYNAMICS FOR ALL OF THE SYSTEMS THROUGH THE EARLY
PART OF NEXT WEEK STAY FAR NORTH OF OUR AREA WITH NORTH TO
NORTHWEST FLOW KEEPING THE ATMOSPHERE STABLE. HAVE KEPT SLIGHT
CHANCE POPS ALONG THE COAST AND INWARD TO THE CASCADES WITH LOW
CLOUDS AND MARINE MOISTURE MAKING A TIP OF THE BUCKET POSSIBLE.
AS WE APPROACH THE END OF NEXT WEEK ENSEMBLES PLOTS ARE IN VERY
TIGHT AGREEMENT WITH UPPER LEVEL TROUGH DEEPENING ALONG THE
PACIFIC NORTHWEST. MODELS ARE SHOWING A DECENT EARLY SUMMER PRECIP
EVENT THE LAST PART OF THE WEEK INTO THE WEEKEND AND WILL WALK UP
THE SLIGHT CHANCE POPS I HAVE INTRODUCED TO ALL OF THE WEST SIDE
INTO PARTS EAST TOMORROW IF MODELS CONTINUE WITH THIS SOLUTION.

WITH 850 TEMPS DROPPING ABOUT 5C OVER THE NEXT SEVERAL NIGHT EAST
OF THE CASCADES COMBINING WITH CLEARING WILL ISSUE A FROST
ADVISORY EAST OF THE CASCADES TOMORROW NIGHT AND SUNDAY NIGHT.

&&

.AVIATION...AREAS OF MVFR IN LOW CLOUDS BUILD INTO THE WEST SIDE
NORTH OF THE UMPQUA DIVIDE AGAIN TONIGHT AND ALONG THE COAST
BEFORE BURNING BACK TO THE COAST BY TOMORROW AFTERNOON.

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...FROST ADVISORY FROM 2 AM TO 8 AM PDT SUNDAY FOR ORZ029-ORZ030-
     ORZ031.
     FROST ADVISORY FROM 2 AM TO 8 AM PDT MONDAY FOR ORZ029-ORZ030-
     ORZ031.

CA...FROST ADVISORY FROM 2 AM TO 8 AM PDT SUNDAY FOR CAZ084-CAZ085.
     FROST ADVISORY FROM 2 AM TO 8 AM PDT MONDAY FOR CAZ084-CAZ085.
     RED FLAG WARNING UNTIL 10 PM PDT THIS EVENING FOR CAZ285.

PACIFIC COASTAL WATERS...NONE.

SVEN