397 
FNUS86 KLOX 172301
FWLLOX

ECCDA Discussions
National Weather Service Los Angeles/Oxnard CA
401 PM PDT Thu Jun 17 2021

ECC029-181715-
Los Padres National Forest-
Discussion for Vandenberg ECC Dispatch
401 PM PDT Thu Jun 17 2021

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

...HOT AND DRY INTERIOR AREAS WITH ELEVATED TO BRIEF CRITICAL FIRE 
WEATHER CONDITIONS THROUGH AT LEAST SUNDAY, ESPECIALLY THIS
WEEKEND...

Isolated thunderstorms remain possible over the mountains and 
deserts of Los Angeles County into this evening. While not in the 
forecast at this point, there is a small chance for additional but
still isolated thunderstorms mainly over Los Angeles County on 
Friday. Any lightning strike poses a fire start risk based on the 
current state of the fuels. 

High pressure aloft peaked on Wednesday and will steadily weaken 
each day through early next week. Despite this trend, the high 
will remain relatively strong through the weekend, with hot and 
dry conditions across our interior valleys, mountains, and deserts
including the warmer coastal valleys. Highs between 98 and 108 
will be common Friday, lowering to 92 to 102 by Sunday. Minimum 
humidities between 8 and 15 percent will be common through Sunday.
Overnight lows will remain warm, with lows between 65 and 75 
common in general, and between 75 and 85 in the mountains and 
foothills with very poor overnight humidity recoveries under 20 
percent. Southwest winds will increase each day through Sunday 
over the interior areas, with gusts between 15 and 30 mph common 
Friday, increasing this weekend to gusts between 20 and 40 mph. 
The combination of these winds and the persistent hot and dry 
conditions will maintain elevated to brief critical fire weather 
conditions, most prevalent over the weekend. Meanwhile, a shallow 
marine layer will continue to moderate coastal areas through 
Friday with little change, but should expand some this weekend. 
This includes over Santa Barbara County, where Sundowner activity 
should be minimal to none through at least Saturday. Cooling and 
moistening likely Monday through at least Wednesday, but gusty 
onshore winds over the interior will continue.


...Discussion from Monterey...

Some convective clouds are currently passing over Monterey county
from south to north and we will continue to watch those for the 
threat of any dry lighting which looks unlikely at this time. 
Otherwise very hot and dry conditions continue this evening with 
little or no night time humidity recovery. Hot and dry weather 
continues on Friday though temperatures may cool a few degrees as 
a stronger westerly seabreeze develops. Gradual cooling trend 
through the weekend into early next week as the marine layer 
returns and a low pressure trough develops off the coast while 
high pressure weakens.



$$

ECC028-181715-
Santa Barbara County excluding Los Padres National Forest-
Discussion for Santa Barbara ECC Dispatch
401 PM PDT Thu Jun 17 2021

...HOT AND DRY INTERIOR AREAS WITH ELEVATED TO BRIEF CRITICAL FIRE 
WEATHER CONDITIONS THROUGH AT LEAST SUNDAY, ESPECIALLY THIS
WEEKEND...

Isolated thunderstorms remain possible over the mountains and 
deserts of Los Angeles County into this evening. While not in the 
forecast at this point, there is a small chance for additional but
still isolated thunderstorms mainly over Los Angeles County on 
Friday. Any lightning strike poses a fire start risk based on the 
current state of the fuels. 

High pressure aloft peaked on Wednesday and will steadily weaken 
each day through early next week. Despite this trend, the high 
will remain relatively strong through the weekend, with hot and 
dry conditions across our interior valleys, mountains, and deserts
including the warmer coastal valleys. Highs between 98 and 108 
will be common Friday, lowering to 92 to 102 by Sunday. Minimum 
humidities between 8 and 15 percent will be common through Sunday.
Overnight lows will remain warm, with lows between 65 and 75 
common in general, and between 75 and 85 in the mountains and 
foothills with very poor overnight humidity recoveries under 20 
percent. Southwest winds will increase each day through Sunday 
over the interior areas, with gusts between 15 and 30 mph common 
Friday, increasing this weekend to gusts between 20 and 40 mph. 
The combination of these winds and the persistent hot and dry 
conditions will maintain elevated to brief critical fire weather 
conditions, most prevalent over the weekend. Meanwhile, a shallow 
marine layer will continue to moderate coastal areas through 
Friday with little change, but should expand some this weekend. 
This includes over Santa Barbara County, where Sundowner activity 
should be minimal to none through at least Saturday. Cooling and 
moistening likely Monday through at least Wednesday, but gusty 
onshore winds over the interior will continue.


$$

ECC031-181715-
Angeles National Forest-
Discussion for Lancaster ECC Dispatch
401 PM PDT Thu Jun 17 2021

...HOT AND DRY INTERIOR AREAS WITH ELEVATED TO BRIEF CRITICAL FIRE 
WEATHER CONDITIONS THROUGH AT LEAST SUNDAY, ESPECIALLY THIS
WEEKEND...

Isolated thunderstorms remain possible over the mountains and 
deserts of Los Angeles County into this evening. While not in the 
forecast at this point, there is a small chance for additional but
still isolated thunderstorms mainly over Los Angeles County on 
Friday. Any lightning strike poses a fire start risk based on the 
current state of the fuels. 

High pressure aloft peaked on Wednesday and will steadily weaken 
each day through early next week. Despite this trend, the high 
will remain relatively strong through the weekend, with hot and 
dry conditions across our interior valleys, mountains, and deserts
including the warmer coastal valleys. Highs between 98 and 108 
will be common Friday, lowering to 92 to 102 by Sunday. Minimum 
humidities between 8 and 15 percent will be common through Sunday.
Overnight lows will remain warm, with lows between 65 and 75 
common in general, and between 75 and 85 in the mountains and 
foothills with very poor overnight humidity recoveries under 20 
percent. Southwest winds will increase each day through Sunday 
over the interior areas, with gusts between 15 and 30 mph common 
Friday, increasing this weekend to gusts between 20 and 40 mph. 
The combination of these winds and the persistent hot and dry 
conditions will maintain elevated to brief critical fire weather 
conditions, most prevalent over the weekend. Meanwhile, a shallow 
marine layer will continue to moderate coastal areas through 
Friday with little change, but should expand some this weekend. 
This includes over Santa Barbara County, where Sundowner activity 
should be minimal to none through at least Saturday. Cooling and 
moistening likely Monday through at least Wednesday, but gusty 
onshore winds over the interior will continue.


$$

ECC024-181715-
San Luis Obispo County-
Discussion for San Luis Obispo ECC Dispatch
401 PM PDT Thu Jun 17 2021

...HOT AND DRY INTERIOR AREAS WITH ELEVATED TO BRIEF CRITICAL FIRE 
WEATHER CONDITIONS THROUGH AT LEAST SUNDAY, ESPECIALLY THIS
WEEKEND...

Isolated thunderstorms remain possible over the mountains and 
deserts of Los Angeles County into this evening. While not in the 
forecast at this point, there is a small chance for additional but
still isolated thunderstorms mainly over Los Angeles County on 
Friday. Any lightning strike poses a fire start risk based on the 
current state of the fuels. 

High pressure aloft peaked on Wednesday and will steadily weaken 
each day through early next week. Despite this trend, the high 
will remain relatively strong through the weekend, with hot and 
dry conditions across our interior valleys, mountains, and deserts
including the warmer coastal valleys. Highs between 98 and 108 
will be common Friday, lowering to 92 to 102 by Sunday. Minimum 
humidities between 8 and 15 percent will be common through Sunday.
Overnight lows will remain warm, with lows between 65 and 75 
common in general, and between 75 and 85 in the mountains and 
foothills with very poor overnight humidity recoveries under 20 
percent. Southwest winds will increase each day through Sunday 
over the interior areas, with gusts between 15 and 30 mph common 
Friday, increasing this weekend to gusts between 20 and 40 mph. 
The combination of these winds and the persistent hot and dry 
conditions will maintain elevated to brief critical fire weather 
conditions, most prevalent over the weekend. Meanwhile, a shallow 
marine layer will continue to moderate coastal areas through 
Friday with little change, but should expand some this weekend. 
This includes over Santa Barbara County, where Sundowner activity 
should be minimal to none through at least Saturday. Cooling and 
moistening likely Monday through at least Wednesday, but gusty 
onshore winds over the interior will continue.


$$

ECC032-181715-
Ventura County excluding Los Padres National Forest-
Discussion for Ventura ECC Dispatch
401 PM PDT Thu Jun 17 2021

...HOT AND DRY INTERIOR AREAS WITH ELEVATED TO BRIEF CRITICAL FIRE 
WEATHER CONDITIONS THROUGH AT LEAST SUNDAY, ESPECIALLY THIS
WEEKEND...

Isolated thunderstorms remain possible over the mountains and 
deserts of Los Angeles County into this evening. While not in the 
forecast at this point, there is a small chance for additional but
still isolated thunderstorms mainly over Los Angeles County on 
Friday. Any lightning strike poses a fire start risk based on the 
current state of the fuels. 

High pressure aloft peaked on Wednesday and will steadily weaken 
each day through early next week. Despite this trend, the high 
will remain relatively strong through the weekend, with hot and 
dry conditions across our interior valleys, mountains, and deserts
including the warmer coastal valleys. Highs between 98 and 108 
will be common Friday, lowering to 92 to 102 by Sunday. Minimum 
humidities between 8 and 15 percent will be common through Sunday.
Overnight lows will remain warm, with lows between 65 and 75 
common in general, and between 75 and 85 in the mountains and 
foothills with very poor overnight humidity recoveries under 20 
percent. Southwest winds will increase each day through Sunday 
over the interior areas, with gusts between 15 and 30 mph common 
Friday, increasing this weekend to gusts between 20 and 40 mph. 
The combination of these winds and the persistent hot and dry 
conditions will maintain elevated to brief critical fire weather 
conditions, most prevalent over the weekend. Meanwhile, a shallow 
marine layer will continue to moderate coastal areas through 
Friday with little change, but should expand some this weekend. 
This includes over Santa Barbara County, where Sundowner activity 
should be minimal to none through at least Saturday. Cooling and 
moistening likely Monday through at least Wednesday, but gusty 
onshore winds over the interior will continue.


$$

ECC030-181715-
Los Angeles County excluding Angeles National Forest-
Discussion for Los Angeles ECC Dispatch
401 PM PDT Thu Jun 17 2021

...HOT AND DRY INTERIOR AREAS WITH ELEVATED TO BRIEF CRITICAL FIRE 
WEATHER CONDITIONS THROUGH AT LEAST SUNDAY, ESPECIALLY THIS
WEEKEND...

Isolated thunderstorms remain possible over the mountains and 
deserts of Los Angeles County into this evening. While not in the 
forecast at this point, there is a small chance for additional but
still isolated thunderstorms mainly over Los Angeles County on 
Friday. Any lightning strike poses a fire start risk based on the 
current state of the fuels. 

High pressure aloft peaked on Wednesday and will steadily weaken 
each day through early next week. Despite this trend, the high 
will remain relatively strong through the weekend, with hot and 
dry conditions across our interior valleys, mountains, and deserts
including the warmer coastal valleys. Highs between 98 and 108 
will be common Friday, lowering to 92 to 102 by Sunday. Minimum 
humidities between 8 and 15 percent will be common through Sunday.
Overnight lows will remain warm, with lows between 65 and 75 
common in general, and between 75 and 85 in the mountains and 
foothills with very poor overnight humidity recoveries under 20 
percent. Southwest winds will increase each day through Sunday 
over the interior areas, with gusts between 15 and 30 mph common 
Friday, increasing this weekend to gusts between 20 and 40 mph. 
The combination of these winds and the persistent hot and dry 
conditions will maintain elevated to brief critical fire weather 
conditions, most prevalent over the weekend. Meanwhile, a shallow 
marine layer will continue to moderate coastal areas through 
Friday with little change, but should expand some this weekend. 
This includes over Santa Barbara County, where Sundowner activity 
should be minimal to none through at least Saturday. Cooling and 
moistening likely Monday through at least Wednesday, but gusty 
onshore winds over the interior will continue.


$$

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