Scientific Forecaster Discussion
Area forecast discussion
National Weather Service San Diego California
323 am PST Monday Mar 2 2015
a low pressure system will bring periods of showers and isolated
thunderstorms into this evening with a chance of showers for coastal
areas tonight into Tuesday morning and for the mountains Tuesday
afternoon. Dry with a warming trend for Wednesday into next weekend
under high pressure.
Discussion...for extreme southwestern California including Orange...
San Diego...western Riverside and southwestern San Bernardino
A low pressure system centered south of Point Conception will move
eastward today bringing bands of showers and isolated
thunderstorms through this afternoon. The snow level will be near
4500 feet. Rainfall totals will be quite variable given the
showery nature of the precipitation. Hourly rainfall of one half
inch with locally greater amounts is possible with bands of
showers. The thunderstorms may also produce small hail with dual
pol radar data showing the possibility of small hail in the more
intense cells during the past two hours.
For tonight into Tuesday...a second cold low pressure system
moving southward off the coast will bring scattered showers and
isolated thunderstorms for the coastal waters late tonight into
Tuesday morning extending locally inland. A slight chance of
showers will continue for the mountains for Tuesday afternoon from
daytime heating and residual moisture.
For Wednesday into next weekend...high pressure aloft will bring
dry weather with a warming trend with periods of mainly weak
021000z...showers will continue today and tonight. Cloud bases
will be generally at or above 3500 feet mean sea level...but in heavier showers down
to as low as 1500 feet and visible 3-5sm. Isolated thunderstorms are
possible...most likely near the coast.
200 am...scattered showers and isolated thunderstorms will
continue through Tuesday morning. Any thunderstorms that develop
may produce small hail...brief heavy rain...gusty winds...cloud-
to-water lightning...and waterspouts. See laxmwssgx for details.
Conditions will improve by Tuesday evening...with no hazardous
marine weather expected Wednesday through Friday.
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.
California...Winter Storm Warning until 4 PM PST this afternoon for Riverside
County mountains-San Bernardino County mountains-San Diego
County mountains above 5000 feet.