Land Management Forecasts
Issued by NWS San Diego, CA

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ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE SAN DIEGO CA
415 AM PDT SUN MAY 11 2025

ECC033-120515-
ORANGE ECC DISPATCH-
DISCUSSION FOR ORANGE ECC DISPATCH
415 AM PDT SUN MAY 11 2025


TODAY WILL BE ANOTHER RELATIVELY WARM DAY WITH 30-40% RELATIVE
HUMIDITIES IN PLACE ACROSS THE VALLEYS WEST OF THE MOUNTAINS,
ALTHOUGH IT WILL BE NOTABLY COOLER COMPARED TO YESTERDAY, AND A
STARK COOLDOWN IS EXPECTED TO CONTINUE THROUGH TUESDAY AS A STORM
SYSTEM APPROACHES. THIS SYSTEM WILL REBUILD A DEEP MARINE LAYER,
BRINGING HIGH MORNING HUMIDITY THROUGH THE COASTAL SLOPES. GUSTY
WEST-SOUTHWESTERLY WINDS ACCOMPANY THE STORM SYSTEM AS WELL, WITH
GUSTS NEAR 35 TO 45 MPH POSSIBLE IN THE DESERTS AND 45-55 MPH IN
THE MOUNTAINS AND MOUNTAIN PASSES FROM MONDAY THROUGH WEDNESDAY
MORNING. SOME PATCHY LIGHT DRIZZLE OR LIGHT RAIN IS POSSIBLE FROM
THE MOUNTAINS TO THE COASTAL AREAS FROM MONDAY THROUGH EARLY
WEDNESDAY, ALTHOUGH THE CHANCE OF A WETTING RAIN IS VERY MINIMAL.


$$

ECC035-120515-
MONTE VISTA ECC DISPATCH-
415 AM PDT SUN MAY 11 2025


TODAY WILL BE ANOTHER RELATIVELY WARM DAY WITH 30-40% RELATIVE
HUMIDITIES IN PLACE ACROSS THE VALLEYS WEST OF THE MOUNTAINS,
ALTHOUGH IT WILL BE NOTABLY COOLER COMPARED TO YESTERDAY, AND A
STARK COOLDOWN IS EXPECTED TO CONTINUE THROUGH TUESDAY AS A STORM
SYSTEM APPROACHES. THIS SYSTEM WILL REBUILD A DEEP MARINE LAYER,
BRINGING HIGH MORNING HUMIDITY THROUGH THE COASTAL SLOPES. GUSTY
WEST-SOUTHWESTERLY WINDS ACCOMPANY THE STORM SYSTEM AS WELL, WITH
GUSTS NEAR 35 TO 45 MPH POSSIBLE IN THE DESERTS AND 45-55 MPH IN
THE MOUNTAINS AND MOUNTAIN PASSES FROM MONDAY THROUGH WEDNESDAY
MORNING. SOME PATCHY LIGHT DRIZZLE OR LIGHT RAIN IS POSSIBLE FROM
THE MOUNTAINS TO THE COASTAL AREAS FROM MONDAY THROUGH EARLY
WEDNESDAY, ALTHOUGH THE CHANCE OF A WETTING RAIN IS VERY MINIMAL.


$$

ECC034-120515-
RIVERSIDE ECC DISPATCH-
415 AM PDT SUN MAY 11 2025

...DISCUSSION FROM LAXFWFSGX...


TODAY WILL BE ANOTHER RELATIVELY WARM DAY WITH 30-40% RELATIVE
HUMIDITIES IN PLACE ACROSS THE VALLEYS WEST OF THE MOUNTAINS,
ALTHOUGH IT WILL BE NOTABLY COOLER COMPARED TO YESTERDAY, AND A
STARK COOLDOWN IS EXPECTED TO CONTINUE THROUGH TUESDAY AS A STORM
SYSTEM APPROACHES. THIS SYSTEM WILL REBUILD A DEEP MARINE LAYER,
BRINGING HIGH MORNING HUMIDITY THROUGH THE COASTAL SLOPES. GUSTY
WEST-SOUTHWESTERLY WINDS ACCOMPANY THE STORM SYSTEM AS WELL, WITH
GUSTS NEAR 35 TO 45 MPH POSSIBLE IN THE DESERTS AND 45-55 MPH IN
THE MOUNTAINS AND MOUNTAIN PASSES FROM MONDAY THROUGH WEDNESDAY
MORNING. SOME PATCHY LIGHT DRIZZLE OR LIGHT RAIN IS POSSIBLE FROM
THE MOUNTAINS TO THE COASTAL AREAS FROM MONDAY THROUGH EARLY
WEDNESDAY, ALTHOUGH THE CHANCE OF A WETTING RAIN IS VERY MINIMAL.


...DISCUSSION FROM PHXFWFPSR...


HIGH PRESSURE CONTINUES TODAY WITH AFTERNOON HIGH TEMPERATURES
FORECASTED TO BE IN THE 100-108 DEGREE RANGE ACROSS THE LOWER
DESERTS AND IN THE 90S ACROSS THE HIGHER ELEVATIONS. TEMPERATURES
COOL SLIGHTLY TOMORROW AS A DRY WEATHER SYSTEM STARTS TO PUSH INTO
OUR AREA. MINRHS WILL BE IN THE 7-15% RANGE TODAY AND TOMORROW.
WIND GUSTS OF 20-30 MPH ARE EXPECTED BEGINNING AROUND SUNRISE
ACROSS SOUTHERN AND CENTRAL AZ WITH SPEEDS DECREASING HEADING INTO
THE AFTERNOON. FOR SE CA AND SW AZ WIND SPEEDS (20-25 MPH) WILL
PICK UP THIS AFTERNOON AND TAPER OFF THROUGH THE EVENING. WINDS
INCREASE TOMORROW, AS A RESULT OF THAT APPROACHING WEATHER SYSTEM.
WIND GUSTS OF 25-40 MPH ARE EXPECTED DURING THE AFTERNOON AND
EVENING WITH THE HIGHEST GUSTS ACROSS THE WESTERN DISTRICTS AND  THE
HIGHER ELEVATIONS IN EASTERN AZ. MINRHS WILL BE IN THE 7-15% RANGE
TODAY AND TOMORROW.

NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND IN
THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.


$$