NWS Bay Area Discussion: Another Perspective

Earlier I posted the National Weather Service Area Forecast Discussion that came out of the Sacramento office this morning. Now here's the discussion from the San Francisco Bay Area office (which is actually located in the Monterey Bay Area, go figure). I like to check in on it to see how the mets at that office might have a different take on things than those in the Sacto office. And of course, pretty much any Pacific-hatched weather that's going to happen in Sacramento has to pass first through the SF forecast area (which extends from Monterey County north through Mendocino County).

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA CA
920 AM PST MON NOV 30 2009

A CHANGE IN THE PATTERN BEGINS OVER THE WEEKEND AS THE WESTERLIES BEGIN TO UNDERCUT THE RIDGE ALONG THE COAST. THE MODELS CONTINUE TO STRUGGLE WITH THE DETAILS OF THIS PATTERN...BUT IT APPEARS THAT ENERGY FROM TYPHOON NIDA IN THE WESTERN PACIFIC WILL ENERGIZE THE EAST ASIAN JET...WHICH WILL THEN UNDERCUT THE RIDGE. THE 12Z GFS IS SLOWER THAN ITS PREVIOUS RUN...AND IS SLOWER THAN THE 00Z ECMWF. WILL WAIT FOR THE 12Z ECMWF BEFORE MAKING ANY CHANGES/UPDATES TO THE FORECAST. MORE ON THIS DEVELOPING PATTERN CHANGE IN THE AFTERNOON DISCUSSION.