Land Management Forecasts
Issued by NWS Los Angeles, CA

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ECCDA Discussions
National Weather Service Los Angeles/Oxnard CA
255 PM PDT Tue Jul 25 2017

ECC029-261600-
Los Padres National Forest-
Discussion for Vandenberg ECC Dispatch
255 PM PDT Tue Jul 25 2017

...Discussion from Los Angeles/Oxnard...

...Monsoonal moisture with the threat of showers and isolated
thunderstorms over the mountains and deserts through early this
evening...

Lingering monsoonal moisture and instability will bring a slight
chance of thunderstorms to the mountains of Los Angeles and
Ventura Counties and Antelope Valley through early this evening. A
drier airmass will move into the area on Wednesday to reduce the
threat of any thunderstorms over the mountains and deserts to near
10 percent. Afternoon buildups will be possible in the mountains
on Wednesday, especially for the eastern San Gabriels, and an
isolated thunderstorm cannot be completely ruled out for this
area.

An upper level ridge of high pressure will bring dry weather to
southwestern California Thursday through Saturday, along with
lowering humidities and some above normal temperatures to inland
areas. Looking ahead to Sunday and Monday, the upper level ridging
will drift more northward into central and northern California.
The upper level flow pattern will then become favorable again for
the influx of monsoonal moisture into southern California,
resulting in a slight chance of mountain and desert thunderstorms
Sunday and Monday.


...Discussion from Monterey...

An upper low is over the region and keeping the marine layer
around 2500 feet deep tonight into Wednesday. In addition
temperatures will remain below normal through Wednesday with a
southwesterly onshore wind flow. A modest warming trend will begin
by Thursday and Friday with temperatures near or slightly above
normal and a compressed marine layer. Long range trends continue
to indicate a potentially significant heat event later in the
weekend and into early next week with triple digit heat inland and
hot temperatures building to near the coast.

Note : All winds are 20-foot Winds Unless otherwise specified.
Thunderstorms imply strong, gusty and erratic winds.



$$

ECC028-261600-
Santa Barbara County excluding Los Padres National Forest-
Discussion for Santa Barbara ECC Dispatch
255 PM PDT Tue Jul 25 2017

...Monsoonal moisture with the threat of showers and isolated
thunderstorms over the mountains and deserts through early this
evening...

Lingering monsoonal moisture and instability will bring a slight
chance of thunderstorms to the mountains of Los Angeles and
Ventura Counties and Antelope Valley through early this evening. A
drier airmass will move into the area on Wednesday to reduce the
threat of any thunderstorms over the mountains and deserts to near
10 percent. Afternoon buildups will be possible in the mountains
on Wednesday, especially for the eastern San Gabriels, and an
isolated thunderstorm cannot be completely ruled out for this
area.

An upper level ridge of high pressure will bring dry weather to
southwestern California Thursday through Saturday, along with
lowering humidities and some above normal temperatures to inland
areas. Looking ahead to Sunday and Monday, the upper level ridging
will drift more northward into central and northern California.
The upper level flow pattern will then become favorable again for
the influx of monsoonal moisture into southern California,
resulting in a slight chance of mountain and desert thunderstorms
Sunday and Monday.


$$

ECC031-261600-
Angeles National Forest-
Discussion for Lancaster ECC Dispatch
255 PM PDT Tue Jul 25 2017

...Monsoonal moisture with the threat of showers and isolated
thunderstorms over the mountains and deserts through early this
evening...

Lingering monsoonal moisture and instability will bring a slight
chance of thunderstorms to the mountains of Los Angeles and
Ventura Counties and Antelope Valley through early this evening. A
drier airmass will move into the area on Wednesday to reduce the
threat of any thunderstorms over the mountains and deserts to near
10 percent. Afternoon buildups will be possible in the mountains
on Wednesday, especially for the eastern San Gabriels, and an
isolated thunderstorm cannot be completely ruled out for this
area.

An upper level ridge of high pressure will bring dry weather to
southwestern California Thursday through Saturday, along with
lowering humidities and some above normal temperatures to inland
areas. Looking ahead to Sunday and Monday, the upper level ridging
will drift more northward into central and northern California.
The upper level flow pattern will then become favorable again for
the influx of monsoonal moisture into southern California,
resulting in a slight chance of mountain and desert thunderstorms
Sunday and Monday.


$$

ECC024-261600-
San Luis Obispo County-
Discussion for San Luis Obispo ECC Dispatch
255 PM PDT Tue Jul 25 2017

...Monsoonal moisture with the threat of showers and isolated
thunderstorms over the mountains and deserts through early this
evening...

Lingering monsoonal moisture and instability will bring a slight
chance of thunderstorms to the mountains of Los Angeles and
Ventura Counties and Antelope Valley through early this evening. A
drier airmass will move into the area on Wednesday to reduce the
threat of any thunderstorms over the mountains and deserts to near
10 percent. Afternoon buildups will be possible in the mountains
on Wednesday, especially for the eastern San Gabriels, and an
isolated thunderstorm cannot be completely ruled out for this
area.

An upper level ridge of high pressure will bring dry weather to
southwestern California Thursday through Saturday, along with
lowering humidities and some above normal temperatures to inland
areas. Looking ahead to Sunday and Monday, the upper level ridging
will drift more northward into central and northern California.
The upper level flow pattern will then become favorable again for
the influx of monsoonal moisture into southern California,
resulting in a slight chance of mountain and desert thunderstorms
Sunday and Monday.


$$

ECC032-261600-
Ventura County excluding Los Padres National Forest-
Discussion for Ventura ECC Dispatch
255 PM PDT Tue Jul 25 2017

...Monsoonal moisture with the threat of showers and isolated
thunderstorms over the mountains and deserts through early this
evening...

Lingering monsoonal moisture and instability will bring a slight
chance of thunderstorms to the mountains of Los Angeles and
Ventura Counties and Antelope Valley through early this evening. A
drier airmass will move into the area on Wednesday to reduce the
threat of any thunderstorms over the mountains and deserts to near
10 percent. Afternoon buildups will be possible in the mountains
on Wednesday, especially for the eastern San Gabriels, and an
isolated thunderstorm cannot be completely ruled out for this
area.

An upper level ridge of high pressure will bring dry weather to
southwestern California Thursday through Saturday, along with
lowering humidities and some above normal temperatures to inland
areas. Looking ahead to Sunday and Monday, the upper level ridging
will drift more northward into central and northern California.
The upper level flow pattern will then become favorable again for
the influx of monsoonal moisture into southern California,
resulting in a slight chance of mountain and desert thunderstorms
Sunday and Monday.


$$

ECC030-261600-
Los Angeles County excluding Angeles National Forest-
Discussion for Los Angeles ECC Dispatch
255 PM PDT Tue Jul 25 2017

...Monsoonal moisture with the threat of showers and isolated
thunderstorms over the mountains and deserts through early this
evening...

Lingering monsoonal moisture and instability will bring a slight
chance of thunderstorms to the mountains of Los Angeles and
Ventura Counties and Antelope Valley through early this evening. A
drier airmass will move into the area on Wednesday to reduce the
threat of any thunderstorms over the mountains and deserts to near
10 percent. Afternoon buildups will be possible in the mountains
on Wednesday, especially for the eastern San Gabriels, and an
isolated thunderstorm cannot be completely ruled out for this
area.

An upper level ridge of high pressure will bring dry weather to
southwestern California Thursday through Saturday, along with
lowering humidities and some above normal temperatures to inland
areas. Looking ahead to Sunday and Monday, the upper level ridging
will drift more northward into central and northern California.
The upper level flow pattern will then become favorable again for
the influx of monsoonal moisture into southern California,
resulting in a slight chance of mountain and desert thunderstorms
Sunday and Monday.


$$



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