FNUS76 KSGX 162016
FWSSGX

SPOT FORECAST FOR S390 FIELD EXERCISE 2 - MODERATE OFFSHORE FLOW...CNTY ORNG
NATIONAL WEATHER SERVICE SAN DIEGO CA
1216 PM PST WED FEB 16 2011

FORECAST IS BASED ON A HYPOTHETICAL WEATHER SCENARIO. IT DOES NOT
REPRESENT ACTUAL CONDITIONS. IT IS ONLY TO BE USED FOR THE S390
FIELD EXERCISE BEING HOSTED BY ORANGE COUNTY FIRE AUTHORITY.

CONTACT DONAL BOURSIER FC ORC FS15-8 FOR FURTHER INFORMATION.

.DISCUSSION...TEST...TEST...TEST...
HIGH PRESSURE CONTINUES OVER NEVADA AND A COASTAL EDDY IS CENTERED
NEAR SAN NICOLAS ISLAND. GENERAL WINDS ARE FROM THE NORTHEAST
AT 15 TO 25 MPH. THE AIR MASS IS DRY AND RELATIVE HUMIDITY TONIGHT
WILL BE VERY POOR DUE TO THE WINDS REMAINING UP THROUGH THE NIGHT.
TOMORROW TEMPERATURES WILL BE SLIGHTLY WARMER...THE
RELATIVE HUMIDITY A LITTLE LOWER...AND THE GENERAL WINDS DIMINISHING
SLIGHTLY.

.TODAY FOR S390 FIELD EXERCISE...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........15 PERCENT.
WIND................
   SLOPES...........EAST 20 MPH WITH GUSTS TO 40 MPH BETWEEN 0900
                    AND NOON...WIND DIMINISHING TO EAST 10 TO 15 MPH
                    IN THE AFTERNOON.
   RIDGETOP.........NORTHEAST 25 MPH.
MIXING HEIGHT.......500 FT AGL UNTIL 0930 PST THEN INVERSION BREAKING
                    AND MIXING TO 2500 FT AGL.
MIXING WINDS........NORTHEAST 20 MPH.

.TONIGHT FOR S390 FIELD EXERCISE...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....LOW 54.
MAX HUMIDITY........25 PERCENT.
WIND................
   SLOPES...........EAST 15 TO 20 MPH WITH GUSTS 30 MPH UNTIL 2200 PST
                    THEN EAST 5 TO 10 MPH THROUGH THE NIGHT.
   RIDGETOP.........NORTHEAST 20 MPH.
MIXING HEIGHT.......WEAK INVERSION NEAR 500 FT AGL AFTER 2200 PST.
MIXING WINDS........NORTHEAST 15 MPH.

.TOMORROW FOR S390 FIELD EXERCISE...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 70...UP FIVE.
MIN HUMIDITY........12 PERCENT...DOWN THREE.
WIND................
   SLOPES...........EAST 5 TO 10 MPH EXCEPT GUSTING 30 MPH FROM
                    MID MORNING THROUGH NOON.
   RIDGETOP.........NORTHEAST 20 MPH.
MIXING HEIGHT.......500 FT AGL TILL 0830 PST...THEN 3000 FT AGL.
MIXING WINDS........NORTHEAST 15 MPH.


TEST...TEST...TEST

$$
FORECASTER...ROB BALFOUR
REQUESTED BY...DONAL BOURSEIR
TYPE OF REQUEST...TEST
.TAG 20110218.S390F.02/SGX