WEATHER FORECAST 09/13/07 (TRANSITION TO FALL CONTINUES)

[dmatt]

WEATHER FORECAST FOR THE OWENS VALLEY AND MAMMOTH AREA
PROVIDED BY DENNIS MATTINSON
EASTERN SIERRA WEATHER FORECASTER
BROADCASTING ON THE SIERRAWAVE 92.5 / 96.5 FM

LAST UPDATE: 8:04 AM PDT SEP 13, 2007

THE TRANSITION INTO FALL CONTINUES AS AN UPPER LEVEL LOW PUSHES ITS WAY TOWARDS THE NORTHERN CALIFORNIA COAST. HIGH TEMPERATURES TODAY WILL BE AT LEAST SEVERAL DEGREES LOWER THAN YESTERDAY. THERE WILL BE A SOUTHWEST FLOW AHEAD OF THAT LOW CREATING BREEZY CONDITIONS FOR THE HIGH COUNTRY AND THE VALLEYS. AS THE LOW MOVES ONSHORE TEMPS WILL FALL EVEN MORE ON FRIDAY. ANY CONVECTION WILL BE LIMITED SO THE THREAT OF THUNDERSTORMS WILL BE MINIMAL THROUGH AT LEAST FRIDAY.

TODAY FOR BISHOP AND THE OWENS VALLEY: MOSTLY SUNNY SKIES WITH SOME SCATTERED HIGH CLOUDS. HIGH TEMPERATURES IN THE LOWER 90S. LOW TEMPERATURES IN THE LOWER 50S. AFTERNOON WINDS FROM THE SOUTHWEST @ 10 - 20 MPH GUSTING TO 33 MPH.

TOMORROW FOR BISHOP AND THE OWENS VALLEY: MOSTLY CLEAR. HIGH TEMPERATURES IN THE UPPER 80S. LOW TEMPERATURES IN THE LOWER 40S. AFTERNOON WINDS FROM THE NORTHWEST @ 10 - 20 WITH GUSTS TO 31.

TODAY FOR MAMMOTH AND THE MONO VALLEYS: HIGH CLOUDS IN THE MORNING BECOMING MOSTLY SUNNY. HIGH TEMPERATURES AROUND 68 FOR THE MAIN LODGE AND THE UPPER 70S FOR THE MONO VALLEYS. LOW TEMPERATURE RANGE 41 - 49. WINDS FROM THE SOUTH @ 10 - 15 WITH SOME GUSTS TO 30 MPH.

TOMORROW FOR MAMMOTH AND THE MONO VALLEYS: SUNNY SKIES. HIGH TEMPERATURES AROUND 66 FOR THE MAIN LODGE AND THE MID 70S FOR THE MONO VALLEYS. LOW TEMPERATURE RANGE 38 - 48. WINDS FROM THE SOUTHWEST @ 10 - 15 MPH GUSTING TO 35. RIDGE TOP GUSTS WILL BE UP TO 60 MPH.

COOL WEATHER WILL CONTINUE THROUGH THE WEEKEND AS THE LOW REMAINS STATIONARY OFF THE COAST. WE SHOULD SEE FREEZING TEMPERATURES IN THE UPPER ELEVATIONS AT LEAST BY SUNDAY AND MONDAY. THAT LOW WILL MOVE INTO THE GREAT BASIN ON MONDAY. THEN, THE NEXT TROUGH DROPS OUT OF THE GULF OF ALASKA ON WEDNESDAY OR NEXT THURSDAY. THIS WILL KEEP TEMPS ON THE COOL SIDE, WITH A CHANCE OF PRECIPITATION AND SNOW IN THE HIGH COUNTRY BY END OF NEXT WEEK. ONCE AGAIN, HIGH COUNTRY TREKKERS SHOULD TAKE NOTE OF THESE POTENTIALLY UNSETTLED CONDITIONS AND PLAN ACCORDINGLY FOR THE PERIOD FROM WEDNESDAY THROUGH SUNDAY OF NEXT WEEK.