Mike's Latest Forecast
Updated 10/06/2006 21:38
Columbus Day Weekend Outlook
Friday was an interesting day, with lines of severe thunderstorms over most of Arizona ahead of a low pressure system and active cold front. Originally forecast to clear out of our area by Saturday, some interesting weather dynamics may hold on to the moisture for another round of storms this weekend. Rather than the dry air with sparse cumulus typical of a departing cold front, we are likely to see moisture returning on Saturday for a repeat performance of Friday.
NWS Synopsis (Friday Evening)
A COLD FRONT EXTENDING FROM STRONG LOW PRESSURE IN NEVADA WILL MOVE EAST ACROSS THE REST OF ARIZONA THIS EVENING BEFORE STALLING AND WEAKENING ALONG THE NEW MEXICO BORDER ON SATURDAY. MEANWHILE...ANOTHER LOW PRESSURE SYSTEM IS DIVING DOWN THE WEST
DRIER AIR FROM THE SOUTHWEST MEANS A SLIGHT CHANCE FOR THUNDERSTORMS OVER THE HIGHER TERRAIN EAST OF PHOENIX...AND MOSTLY CLEAR SKIES ELSEWHERE TONIGHT. MOSTLY SUNNY DAYS ARE EXPECTED THIS WEEKEND EXCEPT FOR A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EAST OF THE GREATER PHOENIX AREA. A LOW PRESSURE SYSTEM WILL BE NEAR THE SOUTHERN CALIFORNIA COAST WITH A SLIGHT CHANCE OF SHOWERS AND
A little cooler and less breezy. Mostly sunny with moderately strong thermals to around 7,500 feet to 8,500 and scattered cumulus. Light to moderate south to south-westerly winds.
Phoenix Forecast Sounding for Saturday
Phoenix Forecast Sounding for Sunday
Cooler and drier than Friday, but still plenty of moisture for cumulus and the odd shower over mountains. A surprise visit from another low pressure system could mean the return of moisture and instability late Saturday and Sunday. Expect moderately strong thermals to cloudbase around 9,000 feet. Moderate south to south-west winds aloft.
Tucson Forecast Sounding for Saturday
Tucson Forecast Sounding for Sunday