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FNUS86 KLOX 051637
FWLLOX

ECCDA Discussions
National Weather Service Los Angeles/Oxnard CA
937 AM PDT Wed Jun 5 2024

ECC029-061045-
Los Padres National Forest-
Discussion for Vandenberg ECC Dispatch
937 AM PDT Wed Jun 5 2024

...Discussion from Monterey...

The warming and drying trend peaks today specifically for the most
interior areas and in higher elevations. While the coast remains
relatively cool, the heat quickly increases the more inland a
location is. Inland relative humidities look to fall to around 20%
with highs expected in the 90s and low 100s. While most areas see
some relief from the heat overnight, some of the higher elevations
will only see overnight lows in the 70s with modest humidity
recoveries. Temperatures reduce slightly for Thursday with more
notable cooling expected for  Friday and into the weekend with
better onshore flow.


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



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

High pressure will start to break down and push east after today,
but  remain nearby near New Mexico for the next few days. This high
pressure  will likely keep a similar marine layer heights today and
Thursday while allowing the warmest coastal valleys to approach
90 degrees through  Thursday. Over the mountains and interior
valleys, temperatures between  95 and 105 will become common with
humidities likely falling into the 10 to 20 percent range. While the
winds do not look strong, the  combination of hot and dry conditions
with typical breezy diurnal wind  patterns will lead to an increased
risk for grass fires, mainly across  the interior areas such as
Antelope Valley.

As the ridge breaks down over the region Thursday through Saturday,
onshore winds will likely increase with gusts of 25 to 35 mph
possible  for interior areas (locally 40 mph Antelope Valley
Foothills),  potentially extending the increased fire risk for grass
fires. However,  cooling trends will support an increase in minimum
humidities, rising to 15 to 25 percent for the windier areas by
Thursday. The only exception  is the Antelope Valley, Eastern
Antelope Valley foothills, and Eastern  San Gabriel Mountains where
minimum humidities could remain as low as 10 percent on Thursday,
however winds will remain weak enough to not  warrant any headlines
but still extend that increased risk for grass  fires.

There is about a 15 percent chance of showers and a 5-10 percent
chance of isolated thunderstorms focused mainly across the mountains
and  deserts of Los Angeles and Ventura Counties and possibly the
easter  Santa Barbara County mountains through Sunday.


$$

ECC028-061045-
Santa Barbara County excluding Los Padres National Forest-
Discussion for Santa Barbara ECC Dispatch
937 AM PDT Wed Jun 5 2024



High pressure will start to break down and push east after today,
but  remain nearby near New Mexico for the next few days. This high
pressure  will likely keep a similar marine layer heights today and
Thursday while allowing the warmest coastal valleys to approach
90 degrees through  Thursday. Over the mountains and interior
valleys, temperatures between  95 and 105 will become common with
humidities likely falling into the 10 to 20 percent range. While the
winds do not look strong, the  combination of hot and dry conditions
with typical breezy diurnal wind  patterns will lead to an increased
risk for grass fires, mainly across  the interior areas such as
Antelope Valley.

As the ridge breaks down over the region Thursday through Saturday,
onshore winds will likely increase with gusts of 25 to 35 mph
possible  for interior areas (locally 40 mph Antelope Valley
Foothills),  potentially extending the increased fire risk for grass
fires. However,  cooling trends will support an increase in minimum
humidities, rising to 15 to 25 percent for the windier areas by
Thursday. The only exception  is the Antelope Valley, Eastern
Antelope Valley foothills, and Eastern  San Gabriel Mountains where
minimum humidities could remain as low as 10 percent on Thursday,
however winds will remain weak enough to not  warrant any headlines
but still extend that increased risk for grass  fires.

There is about a 15 percent chance of showers and a 5-10 percent
chance of isolated thunderstorms focused mainly across the mountains
and  deserts of Los Angeles and Ventura Counties and possibly the
easter  Santa Barbara County mountains through Sunday.


$$

ECC031-061045-
Angeles National Forest-
Discussion for Lancaster ECC Dispatch
937 AM PDT Wed Jun 5 2024



High pressure will start to break down and push east after today,
but  remain nearby near New Mexico for the next few days. This high
pressure  will likely keep a similar marine layer heights today and
Thursday while allowing the warmest coastal valleys to approach
90 degrees through  Thursday. Over the mountains and interior
valleys, temperatures between  95 and 105 will become common with
humidities likely falling into the 10 to 20 percent range. While the
winds do not look strong, the  combination of hot and dry conditions
with typical breezy diurnal wind  patterns will lead to an increased
risk for grass fires, mainly across  the interior areas such as
Antelope Valley.

As the ridge breaks down over the region Thursday through Saturday,
onshore winds will likely increase with gusts of 25 to 35 mph
possible  for interior areas (locally 40 mph Antelope Valley
Foothills),  potentially extending the increased fire risk for grass
fires. However,  cooling trends will support an increase in minimum
humidities, rising to 15 to 25 percent for the windier areas by
Thursday. The only exception  is the Antelope Valley, Eastern
Antelope Valley foothills, and Eastern  San Gabriel Mountains where
minimum humidities could remain as low as 10 percent on Thursday,
however winds will remain weak enough to not  warrant any headlines
but still extend that increased risk for grass  fires.

There is about a 15 percent chance of showers and a 5-10 percent
chance of isolated thunderstorms focused mainly across the mountains
and  deserts of Los Angeles and Ventura Counties and possibly the
easter  Santa Barbara County mountains through Sunday.


$$

ECC024-061045-
San Luis Obispo County-
Discussion for San Luis Obispo ECC Dispatch
937 AM PDT Wed Jun 5 2024



High pressure will start to break down and push east after today,
but  remain nearby near New Mexico for the next few days. This high
pressure  will likely keep a similar marine layer heights today and
Thursday while allowing the warmest coastal valleys to approach
90 degrees through  Thursday. Over the mountains and interior
valleys, temperatures between  95 and 105 will become common with
humidities likely falling into the 10 to 20 percent range. While the
winds do not look strong, the  combination of hot and dry conditions
with typical breezy diurnal wind  patterns will lead to an increased
risk for grass fires, mainly across  the interior areas such as
Antelope Valley.

As the ridge breaks down over the region Thursday through Saturday,
onshore winds will likely increase with gusts of 25 to 35 mph
possible  for interior areas (locally 40 mph Antelope Valley
Foothills),  potentially extending the increased fire risk for grass
fires. However,  cooling trends will support an increase in minimum
humidities, rising to 15 to 25 percent for the windier areas by
Thursday. The only exception  is the Antelope Valley, Eastern
Antelope Valley foothills, and Eastern  San Gabriel Mountains where
minimum humidities could remain as low as 10 percent on Thursday,
however winds will remain weak enough to not  warrant any headlines
but still extend that increased risk for grass  fires.

There is about a 15 percent chance of showers and a 5-10 percent
chance of isolated thunderstorms focused mainly across the mountains
and  deserts of Los Angeles and Ventura Counties and possibly the
easter  Santa Barbara County mountains through Sunday.


$$

ECC032-061045-
Ventura County excluding Los Padres National Forest-
Discussion for Ventura ECC Dispatch
937 AM PDT Wed Jun 5 2024



High pressure will start to break down and push east after today,
but  remain nearby near New Mexico for the next few days. This high
pressure  will likely keep a similar marine layer heights today and
Thursday while allowing the warmest coastal valleys to approach
90 degrees through  Thursday. Over the mountains and interior
valleys, temperatures between  95 and 105 will become common with
humidities likely falling into the 10 to 20 percent range. While the
winds do not look strong, the  combination of hot and dry conditions
with typical breezy diurnal wind  patterns will lead to an increased
risk for grass fires, mainly across  the interior areas such as
Antelope Valley.

As the ridge breaks down over the region Thursday through Saturday,
onshore winds will likely increase with gusts of 25 to 35 mph
possible  for interior areas (locally 40 mph Antelope Valley
Foothills),  potentially extending the increased fire risk for grass
fires. However,  cooling trends will support an increase in minimum
humidities, rising to 15 to 25 percent for the windier areas by
Thursday. The only exception  is the Antelope Valley, Eastern
Antelope Valley foothills, and Eastern  San Gabriel Mountains where
minimum humidities could remain as low as 10 percent on Thursday,
however winds will remain weak enough to not  warrant any headlines
but still extend that increased risk for grass  fires.

There is about a 15 percent chance of showers and a 5-10 percent
chance of isolated thunderstorms focused mainly across the mountains
and  deserts of Los Angeles and Ventura Counties and possibly the
easter  Santa Barbara County mountains through Sunday.


$$

ECC030-061045-
Los Angeles County excluding Angeles National Forest-
Discussion for Los Angeles ECC Dispatch
937 AM PDT Wed Jun 5 2024



High pressure will start to break down and push east after today,
but  remain nearby near New Mexico for the next few days. This high
pressure  will likely keep a similar marine layer heights today and
Thursday while allowing the warmest coastal valleys to approach
90 degrees through  Thursday. Over the mountains and interior
valleys, temperatures between  95 and 105 will become common with
humidities likely falling into the 10 to 20 percent range. While the
winds do not look strong, the  combination of hot and dry conditions
with typical breezy diurnal wind  patterns will lead to an increased
risk for grass fires, mainly across  the interior areas such as
Antelope Valley.

As the ridge breaks down over the region Thursday through Saturday,
onshore winds will likely increase with gusts of 25 to 35 mph
possible  for interior areas (locally 40 mph Antelope Valley
Foothills),  potentially extending the increased fire risk for grass
fires. However,  cooling trends will support an increase in minimum
humidities, rising to 15 to 25 percent for the windier areas by
Thursday. The only exception  is the Antelope Valley, Eastern
Antelope Valley foothills, and Eastern  San Gabriel Mountains where
minimum humidities could remain as low as 10 percent on Thursday,
however winds will remain weak enough to not  warrant any headlines
but still extend that increased risk for grass  fires.

There is about a 15 percent chance of showers and a 5-10 percent
chance of isolated thunderstorms focused mainly across the mountains
and  deserts of Los Angeles and Ventura Counties and possibly the
easter  Santa Barbara County mountains through Sunday.


$$