FORECAST DISCUSSION – From The Cal-U Weather Laboratory
Issued: 1850Z FRIDAY, NOVEMBER 06, 2009

CURRENTLY AT THE CAL U WEATHER CENTER, THE TEMPERATURE IS 46 F AND RISING WITH A DEWPOINT OF 26 F.  WINDS ARE RELATIVELY LIGHT AND VARIABLE, AND THE PRESSURE IS AT 1026MB.

A QUICK LOOK AT SURFACE ANALYSIS SHOWS A 996 LP IN SASKATCHEWAN, AND THREE HP SYSTEMS; A 1028 ON THE EAST COAST, A 1026 IN MEXICO NEAR TX, AND A 1020 MOVING INTO CA.  DEWPOINTS THROUGHOUT THE COUNTRY ARE FAIRLY LOW.  VISIBLE SATELLITE REVEALS CLEAR SKIES OVER MOST OF THE EAST AND DOWN INTO TEXAS, WHICH IS DUE TO THE HP SYSTEMS.  IR IMAGERY SHOWS COLD CLOUDS TOPS FORMING OFF THE EAST SIDE OF THE ROCKIES, DUE TO OROGRAPHIC LIFTING.  FROM 200 MB HEIGHTS TO 700 MB HEIGHTS THERE IS NEARLY TEXTBOOK ZONAL FLOW.  GRADIENTS ARE TIGHTER IN THE NE AND SE, AND RESULT IN SLIGHTLY STRONGER WINDS.

THE MODELS ARE ONCE AGAIN IN FAIRLY GOOD AGREEMENT.  THEY SHOW THE CURRENT HP SYSTEM DICTATING CONDITIONS IN THE FA UNTIL TUESDAY NIGHT.  THERE IS  A SLIGHT CHANCE OF PRECIPATION TUESDAY NIGHT THROUGH WEDNESDAY, AND THEN ANOTHER HP SYSTEM WILL MOVE IN.  FOR THE WEEKEND AND FIRST PART OF THE WEEK, TEMPERATURES SHOULD BE IN THE LOW TO MID-60S, WITH LOWS IN THE 40S.  AROUND WEDNESDAY, TEMPERATURES WILL START TO DROP AROUND THE REGION.

NWS ADVISORIES/WATCHES/WARNINGS:  NONE

Prepared by: / laquay /
The Cal-U Weather Laboratory