NZUS96 KMTR 282031
WRKAFD

Area Forecast Discussion
National Weather Service Sacramento CA
330 pm PDT TUE JUN 28 2016

.SYNOPSIS... 
Hot and mainly dry weather this week. Isolated late day
thunderstorms possible over the mountains.

&&

.DISCUSSION...
24 hr temp trends at 20z were running close to yesterday...albeit
there was less of a N/NWly zephyr at the surface than yesterday. Max
temps still expected to trend to yesterday...although the Carquinez
Strait and portions of the west Delta may be a degree or two cooler.
Still can't rule out the potential for a record tying max temps for
DTS this afternoon...given the late "run-for-glory" with a SW wind
and minimal marine layer as air from the hot pavement of US-50 wafts
over the DTS sensor late in the day. The table below shows the
records for the rest of the month and illustrates that only DTS has
a chance/potential for a record tying max temp today.  

    June 28th       June 29th       June 30th  

RDD  108 (2013)     108 (2013)      113 (2015) 
     111 (1918)   
RBL  112 (1977)     114 (1950)      113 (2015)
DTS  108 (2009)     107 (2013)      112 (1934)
SAC  108 (2009)     107 (2013)      109 (1950)
MYV  111 (2009)     
SCK  110 (2009)     106 (2013)      110 (1972)
MOD  111 (2009)     109 (2009)      108 (1950)

An upper trof approaching the Pac NW coast will nudge the Wrn
portion of the 4-Corners High Ewd on Wed with a weak "baggy" trof
establishing itself over the region Thu/Fri. The short-wave along
the SErn CA/Srn NV border will work its way Nwd today and Wed
bringing some monsoonal moisture with it and the chance of T-storms
mainly S of Tahoe. Most of the activity should be E of the Sierra
Crest. Late Wed...Thu...Fri the aforementioned upper trof is
expected to weaken the ridge enough Norcal to initiate minor cooling
while also continuing a small chance of thunder over a portion of
the mtns...although moisture is lacking.   JHM  

&&