Back to Dry

September 20, 2006

Nice little cold front approaching quickly from the NW tonight.  Looks like it’s through the metro area by news time.  It should make for a gripping LIVE RADAR presentation (how can you even consider turning the channel?).

Visible satellite shows a sharp clearing line behind the front and several models I’ve looked at cut the precip off quickly behind.  Our RPM model here at the station shows only brief orographic (near mountains) rain showers tomorrow morning.  So tomorrow will be mostly dry.

Then ridging sets up for Friday through sometime next week.  The ridge is centered slightly offshore, which keeps us from getting a real strong Fall east wind event, but there is some easterly flow Sunday-Monday anyway.  So I bumped temps up into the lower 80’s for then.  ECMWF & GFS show a small shortwave moving by to the north on Tuesday, which may cool us off before the ridge bounces back.  The big picture looks like this: 12 days of warm/sunny weather to start September, then we went into a cool/showery pattern for about 9 days.  Now we go back into warm/dry for the last 3rd of the month.  Seems pretty normal to me!…Mark