Zone Forecast Product
Issued by NWS San Diego, CA

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FPUS56 KSGX 181051
ZFPSGX

Zone Forecast Product for Extreme Southwestern California
National Weather Service San Diego CA
251 AM PST Thu Jan 18 2018

CAZ552-190200-
Orange County Coastal Areas-
Including the cities of Huntington Beach, Costa Mesa,
Newport Beach, Laguna Beach, and San Clemente
251 AM PST Thu Jan 18 2018

...HIGH SURF ADVISORY IN EFFECT UNTIL 8 PM PST SATURDAY...

.TODAY...Partly cloudy. Patchy fog in the morning. Highs 64 to
69 at the beaches to 72 farther inland and near higher coastal
terrain. Light winds.
.TONIGHT...Partly cloudy in the evening...becoming cloudy. Patchy
drizzle overnight. Lows 48 to 53. Light winds.
.FRIDAY...Mostly cloudy in the morning...becoming partly cloudy.
Slight chance of showers. Highs 61 to 66. Light winds becoming
west 15 mph with gusts to 25 mph in the afternoon. Chance of
measurable precipitation 20 percent.
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Lows 42 to 47. Areas of winds northwest 15 to 20 mph
with gusts to 30 mph. Chance of measurable precipitation
20 percent.
.SATURDAY...Mostly sunny. Highs around 62. Areas of winds west
15 to 20 mph with gusts to 30 mph.
.SATURDAY NIGHT...Mostly clear. Lows 39 to 46.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs around 63.
.SUNDAY NIGHT...Partly cloudy. Lows 42 to 48.
.MONDAY...Partly cloudy. Highs 62 to 67.
.MONDAY NIGHT...Partly cloudy. Lows 44 to 49.
.TUESDAY...Partly cloudy. Highs 63 to 68 at the beaches to
69 farther inland and near higher coastal terrain.
.TUESDAY NIGHT...Partly cloudy. Patchy fog overnight. Lows 45 to
50.
.WEDNESDAY...Partly cloudy. Patchy fog in the morning. Highs
64 to 69.

$$

CAZ554-190200-
Orange County Inland Areas-
Including the cities of Santa Ana, Anaheim, Garden Grove, Irvine,
Orange, Fullerton, and Mission Viejo
251 AM PST Thu Jan 18 2018

.TODAY...Partly cloudy. Highs around 76. Light winds.
.TONIGHT...Partly cloudy in the evening...becoming mostly cloudy.
Patchy drizzle overnight. Lows 45 to 52. Light winds.
.FRIDAY...Mostly cloudy in the morning...becoming partly cloudy.
Slight chance of showers. Highs 62 to 67. Light winds becoming
west 15 mph in the afternoon. Chance of measurable precipitation
20 percent.
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Colder. Lows 36 to 46. Light winds becoming northwest
15 mph with gusts to 25 mph overnight. Chance of measurable
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs 59 to 64. Areas of winds west
15 to 20 mph with gusts to 30 mph.
.SATURDAY NIGHT...Mostly clear. Lows 36 to 45.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs around 64.
.SUNDAY NIGHT...Partly cloudy. Lows 38 to 47.
.MONDAY...Partly cloudy. Highs around 67.
.MONDAY NIGHT...Partly cloudy in the evening...becoming mostly
clear. Lows 41 to 49.
.TUESDAY...Mostly sunny. Highs around 72.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 43 to 51.
.WEDNESDAY...Partly cloudy. Highs 68 to 73.

$$

CAZ043-190200-
San Diego County Coastal Areas-
Including the cities of Oceanside, Vista, Carlsbad, Encinitas,
Chula Vista, National City, and San Diego
251 AM PST Thu Jan 18 2018

...HIGH SURF ADVISORY IN EFFECT UNTIL 8 PM PST SATURDAY...

.TODAY...Partly cloudy. Patchy dense fog in the morning. Highs
66 to 71 near the coast to 72 to 77 inland. Light winds.
.TONIGHT...Partly cloudy in the evening...becoming mostly cloudy.
Lows 44 to 52. Light winds.
.FRIDAY...Mostly cloudy. Slight chance of showers in the morning,
then chance of showers in the afternoon. Highs around 64. Light
winds becoming west 15 mph in the afternoon. Chance of measurable
precipitation 30 percent.
.FRIDAY NIGHT...Mostly cloudy with a slight chance of showers.
Colder. Lows 37 to 47. Areas of winds northwest 15 to 20 mph with
gusts to 30 mph. Chance of measurable precipitation 20 percent.
.SATURDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs around 61. Areas of winds northwest 15 to 20 mph with gusts
to 30 mph.
.SATURDAY NIGHT...Mostly clear. Lows 33 to 43.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs around 64.
.SUNDAY NIGHT...Partly cloudy. Lows 35 to 45.
.MONDAY...Partly cloudy. Highs 64 to 69.
.MONDAY NIGHT...Partly cloudy. Lows 37 to 47.
.TUESDAY...Partly cloudy. Highs 64 to 69 near the coast to
70 inland.
.TUESDAY NIGHT...Partly cloudy. Patchy fog overnight. Lows 38 to
48.
.WEDNESDAY...Partly cloudy. Patchy fog in the morning. Highs
64 to 69 near the coast to 68 to 73 inland.

$$

CAZ050-190200-
San Diego County Valleys-
Including the cities of Escondido, El Cajon, San Marcos, La Mesa,
Santee, and Poway
251 AM PST Thu Jan 18 2018

.TODAY...Partly cloudy. Highs 75 to 80. Light winds.
.TONIGHT...Partly cloudy. Colder. Lows 37 to 47 in wind sheltered
areas to 47 to 53 in warmer locations. Light winds.
.FRIDAY...Partly cloudy with a slight chance of showers in the
morning, then mostly cloudy with a chance of showers in the
afternoon. Cooler. Highs 61 to 66. Light winds becoming west
15 mph in the afternoon. Chance of measurable precipitation
30 percent.
.FRIDAY NIGHT...Mostly cloudy in the evening...becoming partly
cloudy. Chance of showers. Colder. Lows 34 to 44. Areas of winds
west 15 mph with gusts to 25 mph. Chance of measurable
precipitation 50 percent.
.SATURDAY...Partly cloudy with a slight chance of showers in the
morning, then mostly sunny in the afternoon. Highs 57 to 62 in
the western valleys to 50 to 55 near the foothills. Areas of
winds west 15 mph. Gusts to 25 mph in the afternoon. Chance of
measurable precipitation 20 percent.
.SATURDAY NIGHT...Mostly clear. Lows 32 to 42.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs around 64 in the western valleys to 57 to 62 near the
foothills.
.SUNDAY NIGHT...Partly cloudy. Lows 35 to 45.
.MONDAY...Partly cloudy. Highs around 67 in the western valleys
to 61 to 66 near the foothills.
.MONDAY NIGHT...Partly cloudy in the evening...becoming mostly
clear. Lows 38 to 48.
.TUESDAY...Mostly sunny. Highs 69 to 74.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 40 to 50.
.WEDNESDAY...Partly cloudy. Highs around 72 in the western
valleys to 66 to 71 near the foothills.

$$

CAZ048-190200-
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario,
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
251 AM PST Thu Jan 18 2018

.TODAY...Partly cloudy. Highs 76 to 81. Light winds.
.TONIGHT...Partly cloudy. Colder. Lows 41 to 50. Light winds.
.FRIDAY...Mostly cloudy in the morning...becoming partly cloudy.
Slight chance of showers. Cooler. Highs 60 to 65. Light winds
becoming southwest 15 mph in the afternoon. Chance of measurable
precipitation 20 percent.
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Colder. Lows 32 to 42. Light winds. Chance of measurable
precipitation 20 percent.
.SATURDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs 55 to 60. Areas of winds west 15 mph. Gusts to 25 mph in
the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 30 to 40.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs 60 to 65.
.SUNDAY NIGHT...Partly cloudy. Lows 33 to 43.
.MONDAY...Partly cloudy. Highs 64 to 69.
.MONDAY NIGHT...Partly cloudy in the evening...becoming mostly
clear. Lows 36 to 46.
.TUESDAY...Mostly sunny. Highs 69 to 74.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 38 to 48.
.WEDNESDAY...Partly cloudy. Highs 67 to 72.

$$

CAZ057-190200-
Santa Ana Mountains and Foothills-
251 AM PST Thu Jan 18 2018

.TODAY...Partly cloudy. Highs 71 to 76. Light winds.
.TONIGHT...Partly cloudy. Cooler. Lows 45 to 53. Light winds.
.FRIDAY...Mostly cloudy with a slight chance of showers in the
morning, then partly cloudy with a chance of showers in the
afternoon. Cooler. Highs 56 to 61. Light winds becoming southwest
15 mph with gusts to 25 mph in the afternoon. Chance of
measurable precipitation 30 percent.
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Colder. Lows 33 to 43. Areas of winds west 15 mph with
gusts to 25 mph. Chance of measurable precipitation 20 percent.
.SATURDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs 50 to 56. Areas of winds west 15 to 20 mph. Gusts to
25 mph...becoming 30 mph in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 34 to 44.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs 56 to 61.
.SUNDAY NIGHT...Partly cloudy. Lows 38 to 48.
.MONDAY...Partly cloudy. Highs 60 to 65.
.MONDAY NIGHT...Partly cloudy. Lows 43 to 52.
.TUESDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs 65 to 70.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 46 to 55.
.WEDNESDAY...Partly cloudy. Highs 62 to 68.

$$

CAZ055-190200-
San Bernardino County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, and Wrightwood
251 AM PST Thu Jan 18 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM FRIDAY TO NOON PST
SATURDAY...

.TODAY...Partly cloudy. Highs 56 to 62 above 6000 feet to 61 to
67 below 6000 feet. Light winds becoming southwest 15 mph in the
afternoon.
.TONIGHT...Partly cloudy. Colder. Lows 27 to 37 above 6000 feet
to 37 to 45 below 6000 feet. Areas of winds southwest 15 to
20 mph. Gusts to 30 mph...becoming 35 mph overnight.
.FRIDAY...Partly cloudy with a slight chance of showers. Highs
46 to 54 above 6000 feet to 50 to 56 below 6000 feet. Snow level
7500 feet...becoming 6500 feet in the afternoon. Areas of winds
southwest 15 to 25 mph. Gusts to 35 mph...becoming 40 mph in the
afternoon. Chance of measurable precipitation 20 percent.
.FRIDAY NIGHT...Partly cloudy. Chance of snow showers and showers
in the evening, then slight chance of snow showers overnight.
Light snow accumulations possible. Much colder. Lows 13 to 23.
Snow level 5500 feet in the evening. Areas of winds northwest
20 to 30 mph. Gusts to 45 mph...becoming 40 mph overnight. Chance
of measurable precipitation 50 percent.
.SATURDAY...Partly cloudy in the morning...becoming mostly sunny.
Colder. Highs 30 to 39 above 6000 feet to 38 to 44 below
6000 feet. Areas of winds northwest 20 to 30 mph with gusts to
45 mph...becoming 15 to 20 mph with gusts to 35 mph in the
afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 15 to 25.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs 38 to 45 above 6000 feet to 44 to 50 below 6000 feet.
.SUNDAY NIGHT...Partly cloudy. Lows 21 to 31.
.MONDAY...Partly cloudy. Highs 44 to 51 above 6000 feet to 50 to
55 below 6000 feet.
.MONDAY NIGHT...Partly cloudy. Lows 26 to 36.
.TUESDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs 49 to 54 above 6000 feet to 54 to 59 below 6000 feet.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 28 to 38.
.WEDNESDAY...Partly cloudy. Highs 43 to 49 above 6000 feet to
51 to 57 below 6000 feet.

$$

CAZ056-190200-
Riverside County Mountains-
Including the city of Idyllwild-Pine Cove
251 AM PST Thu Jan 18 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM FRIDAY TO NOON PST
SATURDAY...

.TODAY...Partly cloudy. Highs 63 to 70. Light winds.
.TONIGHT...Partly cloudy. Colder. Lows 34 to 44. Areas of winds
west 15 mph. Gusts to 25 mph overnight.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers in the afternoon. Highs 54 to 60. Snow
level above 8000 feet...becoming 7000 feet in the afternoon.
Areas of winds west 15 to 25 mph. Gusts to 30 mph...becoming
40 mph in the afternoon. Chance of measurable precipitation
30 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers in the
evening, then partly cloudy overnight. Light snow accumulations
possible. Much colder. Lows 18 to 28. Snow level 6000 feet in the
evening. Areas of winds west 20 to 30 mph. Gusts to 45 mph...
becoming 40 mph overnight. Chance of measurable precipitation
50 percent.
.SATURDAY...Partly cloudy in the morning...becoming mostly sunny.
Cooler. Highs 41 to 46. Areas of winds west 20 to 30 mph with
gusts to 45 mph...becoming 15 to 20 mph with gusts to 30 mph in
the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 19 to 29.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs 47 to 53.
.SUNDAY NIGHT...Partly cloudy. Lows 24 to 34.
.MONDAY...Partly cloudy. Highs 52 to 58.
.MONDAY NIGHT...Partly cloudy. Lows 29 to 39.
.TUESDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs 56 to 63.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 31 to 41.
.WEDNESDAY...Partly cloudy. Highs 54 to 61.

$$

CAZ058-190200-
San Diego County Mountains-
Including the cities of Julian and Pine Valley
251 AM PST Thu Jan 18 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM FRIDAY TO NOON PST
SATURDAY...

.TODAY...Partly cloudy. Highs 65 to 73. Light winds.
.TONIGHT...Partly cloudy. Colder. Lows 38 to 48. Light winds
becoming southwest 15 to 20 mph with gusts to 30 mph overnight.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers in the afternoon. Highs 55 to 61. Areas of
winds west 15 to 25 mph. Gusts to 30 mph...becoming 35 mph in the
afternoon. Chance of measurable precipitation 40 percent.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers in the
evening, then partly cloudy with a chance of showers overnight.
Light snow accumulations possible. Colder. Lows 27 to 37. Snow
level 3500 feet overnight. Areas of winds west 20 to 30 mph.
Gusts to 40 mph...becoming 45 mph overnight. Chance of measurable
precipitation 50 percent.
.SATURDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs 43 to 49. Areas of winds west 20 to 30 mph. Gusts to
45 mph...becoming 35 mph in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 27 to 36.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs 50 to 56.
.SUNDAY NIGHT...Partly cloudy. Lows 30 to 40.
.MONDAY...Partly cloudy. Highs 54 to 61.
.MONDAY NIGHT...Partly cloudy. Lows 34 to 44.
.TUESDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs 58 to 65.
.TUESDAY NIGHT...Mostly clear. Lows 36 to 46.
.WEDNESDAY...Mostly sunny in the morning...becoming partly
cloudy. Highs 57 to 65.

$$

CAZ060-190200-
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, Apple Valley,
and Lucerne Valley
251 AM PST Thu Jan 18 2018

.TODAY...Partly cloudy. Highs 68 to 73. Light winds becoming
south 15 mph with gusts to 25 mph in the afternoon.
.TONIGHT...Partly cloudy. Lows 37 to 44. Areas of winds south
15 mph. Gusts to 25 mph in the evening.
.FRIDAY...Partly cloudy. Highs 60 to 67. Areas of winds west
15 to 25 mph. Gusts to 25 mph...becoming 40 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. Colder. Lows 26 to 33. Areas of
winds west 15 to 25 mph. Gusts to 40 mph...becoming 35 mph
overnight.
.SATURDAY...Partly cloudy in the morning...becoming mostly sunny.
Highs 49 to 54. Areas of winds northwest 15 to 25 mph. Gusts to
35 mph...becoming 30 mph in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 22 to 30.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs 52 to 57.
.SUNDAY NIGHT...Partly cloudy. Lows 26 to 34.
.MONDAY...Partly cloudy. Highs 57 to 62.
.MONDAY NIGHT...Partly cloudy in the evening...becoming mostly
clear. Lows 29 to 36.
.TUESDAY...Mostly sunny. Highs 59 to 64.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 31 to 39.
.WEDNESDAY...Partly cloudy. Highs 59 to 64.

$$

CAZ065-190200-
San Gorgonio Pass Near Banning-
Including the cities of Banning and Desert Hot Springs
251 AM PST Thu Jan 18 2018

.TODAY...Partly cloudy. Highs 72 to 77. Light winds.
.TONIGHT...Partly cloudy. Lows 49 to 54. Light winds becoming
west 15 mph overnight.
.FRIDAY...Partly cloudy. Highs 66 to 71. Areas of winds west
15 to 25 mph. Gusts to 30 mph...becoming 35 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening. Colder. Lows 38 to 45. Areas of winds west 15 to 25 mph.
Gusts to 40 mph...becoming 35 mph overnight. Chance of measurable
precipitation 20 percent.
.SATURDAY...Mostly sunny. Highs 57 to 62. Areas of winds west
15 to 25 mph with gusts to 40 mph.
.SATURDAY NIGHT...Mostly clear. Lows 37 to 43.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs 59 to 64.
.SUNDAY NIGHT...Partly cloudy. Lows 40 to 45.
.MONDAY...Partly cloudy. Highs 63 to 68.
.MONDAY NIGHT...Partly cloudy in the evening...becoming mostly
clear. Lows 43 to 48.
.TUESDAY...Mostly sunny. Highs 66 to 71.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 44 to 49.
.WEDNESDAY...Partly cloudy. Highs 68 to 73.

$$

CAZ061-190200-
Coachella Valley-
Including the cities of Indio, Palm Springs, Cathedral City,
Palm Desert, Palm Desert Country, La Quinta, and Coachella
251 AM PST Thu Jan 18 2018

.TODAY...Partly cloudy. Highs around 76. Light winds.
.TONIGHT...Partly cloudy. Lows 43 to 53. Light winds.
.FRIDAY...Partly cloudy. Highs around 72. Light winds becoming
west 15 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. Colder. Lows 38 to 47. Areas of
winds west 15 to 20 mph with gusts to 30 mph.
.SATURDAY...Mostly sunny. Highs around 63. Areas of winds
northwest 15 to 20 mph with gusts to 30 mph.
.SATURDAY NIGHT...Mostly clear. Lows 36 to 45.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs around 64.
.SUNDAY NIGHT...Partly cloudy. Lows 35 to 45.
.MONDAY...Partly cloudy. Highs 64 to 69.
.MONDAY NIGHT...Partly cloudy in the evening...becoming mostly
clear. Lows 37 to 47.
.TUESDAY...Mostly sunny. Highs around 71.
.TUESDAY NIGHT...Mostly clear in the evening...becoming partly
cloudy. Lows 39 to 49.
.WEDNESDAY...Partly cloudy. Highs 70 to 75.

$$

CAZ062-190200-
San Diego County Deserts-
Including the city of Borrego Springs
251 AM PST Thu Jan 18 2018

.TODAY...Partly cloudy. Highs 73 to 78. Light winds.
.TONIGHT...Partly cloudy. Lows 46 to 55. Light winds.
.FRIDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs around 73. Light winds becoming west 15 to
20 mph with gusts to 35 mph in the afternoon. Chance of
measurable precipitation 20 percent.
.FRIDAY NIGHT...Partly cloudy. Colder. Lows 38 to 46. Areas of
winds west 15 to 20 mph with gusts to 30 mph.
.SATURDAY...Mostly sunny. Cooler. Highs around 62. Areas of winds
west 15 to 25 mph with gusts to 35 mph.
.SATURDAY NIGHT...Mostly clear. Lows 34 to 43.
.SUNDAY...Mostly sunny in the morning...becoming partly cloudy.
Highs 61 to 66.
.SUNDAY NIGHT...Partly cloudy. Lows 36 to 45.
.MONDAY...Partly cloudy. Highs 64 to 69.
.MONDAY NIGHT...Partly cloudy in the evening...becoming mostly
clear. Lows 39 to 47.
.TUESDAY...Mostly sunny. Highs 68 to 73.
.TUESDAY NIGHT...Mostly clear. Lows 40 to 50.
.WEDNESDAY...Mostly sunny. Highs around 71.

$$



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