San Rafael, CA

3:00 AM PDT on May 25, 2012 (GMT -0700)
Elev: 23 ft
Lon: 122.5° W
Lat: 38.0° N
Source
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Active Advisory: Special Statement (US Severe Weather)
Tropical Weather: Invest 94 (North Atlantic) Hurricane Bud (East Pacific) Typhoon Sanvu (Western Pacific)
Weather Summary
Jessica Parker
Weather Underground Forecast for Friday, May 25, 2012.

Expect more active weather to develop across the Great Lakes on Friday, as a low pressure system moves from the Upper Midwest into eastern Canada. This system will push a cold front over the Great Lakes and Midwest, producing scattered showers and thunderstorms throughout the day. There is a slight chance that some of these storms will turn severe with strong winds and large hail. Rainfall totals will range from 1 to 2 inches, with over 2 inches likely in areas of severe weather development.

Behind this activity in the West, a low pressure system will move over the Great Basin and into the Southern Rockies. Flow around this system will produce cooler temperatures across the West, while also triggering scattered showers over the Pacific Northwest, northern California, and Intermountain West. Snow showers may develop again across the highest elevations of the Northern Rockies.

Meanwhile in the East, high pressure builds from the Plains, over the Mississippi River Valley, and into the Eastern US. This will keep moisture away to the north, allowing for dry, sunny, and warm conditions. High temperatures will range in the 80s and 90s from the Central Plains through the Eastern Valleys, with parts of the Southern US reaching into the lower 100s.
Weather Underground Forecast for Friday, May 25, 2012.

Expect more active weather to develop across the Great Lakes on Friday, as a low pressure system moves from the Upper Midwest into eastern Canada. This system will push a cold front over the Great Lakes and Midwest, producing scattered showers and thunderstorms throughout the day. There is a slight chance that some of these storms will turn severe with strong winds and large hail. Rainfall totals will range from 1 to 2 inches, with over 2 inches likely in areas of severe weather development.

Behind this activity in the West, a low pressure system will move over the Great Basin and into the Southern Rockies. Flow around this system will produce cooler temperatures across the West, while also triggering scattered showers over the Pacific Northwest, northern California, and Intermountain West. Snow showers may develop again across the highest elevations of the Northern Rockies.

Meanwhile in the East, high pressure builds from the Plains, over the Mississippi River Valley, and into the Eastern US. This will keep moisture away to the north, allowing for dry, sunny, and warm conditions. High temperatures will range in the 80s and 90s from the Central Plains through the Eastern Valleys, with parts of the Southern US reaching into the lower 100s.
Weather Underground Broadcast Network

San Rafael Weather at a Glance

Updated 3:00 AM PDT
Weather Station - report
Country Club, San Rafael
Elevation
172 ft
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Now
Clear
Clear
Temperature
48.6 °F
Feels Like 46 °F
Wind(mph)
7.0
Sunrise / Set
5:52 AM
8:22 PM
Moon
Waxing Crescent
Tonight
Clear 48 °F
Clear
Friday
Thunderstorm 68 °F
T-storms
20% chance of precipitation
Friday Night
Thunderstorm 48 °F
T-storms
20% chance of precipitation
Saturday
Partly Cloudy 72 | 48 °F
Partly Cloudy
Sunday
Partly Cloudy 73 | 50 °F
Partly Cloudy
Monday
Partly Cloudy 73 | 50 °F
Partly Cloudy
Today is forecast to be Cooler than yesterday.
Conditions
Pressure
29.73 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
78%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KDVO 250955Z AUTO 29017G24KT 10SM CLR 10/03 A2973 RMK AO2
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Windchill
46 °F
Dew Point
42 °F
Wind
Speed / Dir
7.0 mph from West
Wind Gust
15.0 mph
Health
UV
0 out of 16
Pollen
6.40 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Local Activity
View Flu Map
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Source: BestForecast
Descriptive Forecast
Friday
tstorms Mostly cloudy with thunderstorms and a chance of rain. High of 68F. Breezy. Winds from the WNW at 20 to 25 mph with gusts to 30 mph. Chance of rain 20%.
Friday Night
nt_tstorms Partly cloudy with thunderstorms and a chance of rain. Low of 48F. Winds from the WNW at 5 to 20 mph. Chance of rain 20%.
Saturday
partlycloudy Partly cloudy in the morning, then clear. High of 72F. Winds from the West at 5 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 48F. Winds from the West at 5 to 15 mph.
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 73F. Winds from the WSW at 5 to 15 mph.
Sunday Night
nt_clear Clear in the evening, then partly cloudy. Low of 50F. Winds from the West at 5 to 10 mph.
Monday
partlycloudy Clear. High of 73F. Winds from the West at 10 to 15 mph.
Monday Night
nt_clear Partly cloudy. Fog overnight. Low of 50F. Winds from the West at 5 to 10 mph.
Tuesday
partlycloudy Clear. High of 73F. Winds from the West at 5 to 15 mph.
Tuesday Night
nt_mostlycloudy Mostly cloudy. Fog overnight. Low of 52F. Winds from the West at 5 to 10 mph.
Wednesday
partlycloudy Clear. High of 79F. Winds from the West at 5 to 15 mph.
Wednesday Night
nt_clear Clear. Fog overnight. Low of 54F. Winds from the West at 5 to 10 mph.
Thursday
partlycloudy Clear. High of 81F. Winds from the WSW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 54F. Winds from the West at 5 to 10 mph.
Friday
clear Clear. High of 79F. Winds from the WSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 54F. Winds from the West at 10 to 15 mph.
Saturday
clear Clear. High of 77F. Winds from the West at 5 to 20 mph.
Saturday Night
nt_clear Clear. Low of 52F. Winds from the WNW at 10 to 15 mph.
Sunday
clear Clear. High of 75F. Breezy. Winds from the WNW at 10 to 20 mph.
Sunday Night
nt_clear Clear. Low of 52F. Breezy. Winds from the WNW at 10 to 20 mph.
Monday
clear Clear. High of 77F. Breezy. Winds from the WNW at 10 to 20 mph.
Monday Night
nt_clear Clear. Low of 52F. Breezy. Winds from the WNW at 10 to 20 mph.
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Forecast

View Calendar 10-Day Forecast for station KCASANTA85

Friday, 25
Thunderstorm
68 | 48 °F
T-storms
Chance of
Precipitation
20%
Saturday, 26
Partly Cloudy
72 | 48 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 27
Partly Cloudy
73 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 28
Partly Cloudy
73 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 29
Partly Cloudy
73 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 30
Partly Cloudy
79 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 31
Partly Cloudy
81 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Friday, 1
Clear
79 | 54 °F
Clear
Chance of
Precipitation
0%
Saturday, 2
Clear
77 | 52 °F
Clear
Chance of
Precipitation
0%
Sunday, 3
Clear
75 | 52 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Friday
tstorms Mostly cloudy with thunderstorms and a chance of rain. High of 68F. Breezy. Winds from the WNW at 20 to 25 mph with gusts to 30 mph. Chance of rain 20%.
Friday Night
nt_tstorms Partly cloudy with thunderstorms and a chance of rain. Low of 48F. Winds from the WNW at 5 to 20 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 41 61 | 41 61 | 44 54 | 47
Wind 20 mph WNW 22 mph WNW 18 mph WNW 12 mph WNW
Humidity 74% 49% 53% 80%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 65% 70% 60% 33%
Conditions Chance of Rain Thunderstorm Thunderstorm Partly Cloudy
Sunrise & Sunset
5:52 AM
8:22 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.36], Average RMSE [2.07]
The National Weather Service forecast quality is poor. MaxT RMSE [4.20], Average RMSE [1.47] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
partlycloudy Partly cloudy in the morning, then clear. High of 72F. Winds from the West at 5 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 48F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 45 65 | 53 63 | 49 53 | 47
Wind 7 mph WNW 9 mph West 12 mph West 7 mph West
Humidity 80% 64% 59% 82%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 45% 23% 24% 56%
Conditions Partly Cloudy Clear Clear Partly Cloudy
Sunrise & Sunset
5:51 AM
8:23 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.47], Average RMSE [2.02]
The National Weather Service forecast quality is poor. MaxT RMSE [4.40], Average RMSE [1.36] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 73F. Winds from the WSW at 5 to 15 mph.
Sunday Night
nt_clear Clear in the evening, then partly cloudy. Low of 50F. Winds from the West at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 47 67 | 50 66 | 46 55 | 51
Wind 3 mph West 7 mph WSW 11 mph West 8 mph West
Humidity 84% 55% 50% 82%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 55% 13% 13% 0%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:23 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.89], Average RMSE [2.07]
The National Weather Service forecast quality is poor. MaxT RMSE [4.85], Average RMSE [1.70] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Monday
partlycloudy Clear. High of 73F. Winds from the West at 10 to 15 mph.
Monday Night
nt_clear Partly cloudy. Fog overnight. Low of 50F. Winds from the West at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 48 65 | 52 66 | 53 53 | 49
Wind 7 mph West 12 mph West 12 mph West 7 mph West
Humidity 87% 64% 62% 86%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 27% 0% 0% 0%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.09], Average RMSE [2.15]
The National Weather Service forecast quality is poor. MaxT RMSE [5.33], Average RMSE [1.87] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Tuesday
partlycloudy Clear. High of 73F. Winds from the West at 5 to 15 mph.
Tuesday Night
nt_mostlycloudy Mostly cloudy. Fog overnight. Low of 52F. Winds from the West at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 47 65 | 50 66 | 49 55 | 48
Wind 4 mph West 7 mph West 10 mph West 6 mph WNW
Humidity 85% 59% 55% 77%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 3% 0% 0% 100%
Conditions Fog Clear Clear Overcast
Sunrise & Sunset
5:50 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.18], Average RMSE [2.50]
The National Weather Service forecast quality is poor. MaxT RMSE [5.76], Average RMSE [1.85] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Wednesday
partlycloudy Clear. High of 79F. Winds from the West at 5 to 15 mph.
Wednesday Night
nt_clear Clear. Fog overnight. Low of 54F. Winds from the West at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 49 70 | 54 68 | 48 56 | 49
Wind 5 mph West 7 mph West 10 mph West 6 mph West
Humidity 82% 56% 48% 78%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.81], Average RMSE [2.58]
The National Weather Service forecast quality is poor. MaxT RMSE [6.29], Average RMSE [2.12] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Thursday
partlycloudy Clear. High of 81F. Winds from the WSW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 54F. Winds from the West at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 51 72 | 54 71 | 54 56 | 50
Wind 3 mph West 6 mph WSW 9 mph WSW 5 mph West
Humidity 83% 50% 55% 80%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.73], Average RMSE [2.78]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Friday
clear Clear. High of 79F. Winds from the WSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 54F. Winds from the West at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 52 72 | 55 71 | 51 55 | 49
Wind 5 mph West 7 mph SW 11 mph West 11 mph West
Humidity 88% 56% 49% 75%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 0% 0% 0% 3%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.19], Average RMSE [3.22]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
clear Clear. High of 77F. Winds from the West at 5 to 20 mph.
Saturday Night
nt_clear Clear. Low of 52F. Winds from the WNW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 51 70 | 54 68 | 51 54 | 48
Wind 9 mph West 9 mph West 15 mph West 12 mph WNW
Humidity 88% 58% 56% 81%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 6% 9% 12% 9%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.07], Average RMSE [3.27]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
clear Clear. High of 75F. Breezy. Winds from the WNW at 10 to 20 mph.
Sunday Night
nt_clear Clear. Low of 52F. Breezy. Winds from the WNW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 49 68 | 58 68 | 52 54 | 45
Wind 10 mph WNW 11 mph WNW 18 mph WNW 13 mph WNW
Humidity 86% 69% 58% 70%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 5% 4% 2% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:25 PM
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Monday
clear Clear. High of 77F. Breezy. Winds from the WNW at 10 to 20 mph.
Monday Night
nt_clear Clear. Low of 52F. Breezy. Winds from the WNW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 47 68 | 56 68 | 51 54 | 44
Wind 10 mph WNW 11 mph WNW 17 mph WNW 12 mph WNW
Humidity 78% 63% 53% 69%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 1% 1% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:25 PM
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 25, 2012 Max Temp Min Temp
Normal (KAPC) 72 °F 48 °F
Record (KAPC) 80 °F (2000) 42 °F (2010)
Yesterday 75 °F 43 °F
Yesterday's Heating Degree Days: 6
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
OZONE
Yesterday Good
PM2.5
Current Good
OZONE
Current Good
PM2.5
Friday Good
OZONE
Saturday Good
OZONE
Sunday Good
OZONE
Monday Good
OZONE
Tuesday Good
OZONE
Coastal Water Temperatures
Place Temperature
San Francisco, CA 54.0 °F
Port Chicago, CA 64.0 °F
Marine Forecast
Astronomy
May. 25, 2012 Rise Set
Actual Time 5:52 AM PDT 8:22 PM PDT
Civil Twilight 5:21 AM PDT 8:52 PM PDT
Nautical Twilight 4:44 AM PDT 9:30 PM PDT
Astronomical Twilight 4:02 AM PDT 10:12 PM PDT
Moon 9:55 AM PDT No Moon Set
Length Of Visible Light 15h 30m
Length of Day
14h 30m
Tomorrow will be 1m 19s longer.
Waxing Crescent, 17% of the Moon is Illuminated
Today
Waxing Crescent
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter
Jun 19
New
Visit Astronomy
Today's Extremes
State Highs State Lows
82 °F
Needles
75 °F
Blythe
72 °F
Palm Springs
72 °F
Thermal
71 °F
Twentynine Palms
32 °F
Truckee-Tahoe
35 °F
Weaverville
36 °F
Mount Shasta
37 °F
Blue Canyon
37 °F
Alturas
Record Extremes
Snow Depth
Station Depth Elevation
Carson Pass 0 in 8500 ft
Forestdale Creek 1 in 8029 ft
Ward Creek #3 0 in 6750 ft
Blue Lakes 0 in 8000 ft
Rubicon #2 0 in 7500 ft
Snow Depth Reports — Snow Depth Map
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Travel & Activities
Travel Planning
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Nearby Events
Event Date Forecast
The Cheeseballs 9:00 PM PDT 2012-05-25 Thunderstorm, 56°F
Sage 10:00 PM PDT 2012-05-25 Thunderstorm, 53°F
The Night of the Iguana 8:00 PM PDT 2012-05-25 Thunderstorm, 59°F
Curtains 7:00 PM PDT 2012-05-25 Thunderstorm, 60°F
Magic Flute Sessions 7:00 PM PDT 2012-05-25 Thunderstorm, 60°F
AppleJam Presents: The Magic Flute Sessions 7:00 PM PDT 2012-05-25 Thunderstorm, 60°F
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
Novato 50 °F Clear 2:55 AM PDT
Petaluma 46 °F Clear 2:55 AM PDT
Napa County 48 °F Clear 2:54 AM PDT
Oakland 51 °F Partly Cloudy 2:53 AM PDT
View all Aviation Tools
Flight To ETA Status
UPS942
Louisville, KY 		KOAK 03:54AM On Time
FDX1167
Fort Worth, TX 		KOAK 04:36AM On Time
FDX1419
Memphis, TN 		KOAK 04:59AM On Time
UPS946
Louisville, KY 		KOAK 05:10AM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KDVO)
Wind Speed: 17.0 kts.
Wind Dir: 277° (West)
Ceiling: Unlimited

METAR KDVO 250955Z AUTO 29017G24KT 10SM CLR 10/03 A2973 RMK AO2

View all Reports & Maps
Sports
Event Date Forecast
Royals vs. Orioles 7:05 PM EDT on May 25, 2012 Partly Cloudy, 81 °F
Cubs vs. Pirates 7:05 PM EDT on May 25, 2012 Chance of a Thunderstorm, 81 °F
Yankees vs. Athletics 7:05 PM PDT on May 25, 2012 Thunderstorm, 56 °F
Yankees vs. Athletics 1:05 PM PDT on May 26, 2012 Partly Cloudy, 61 °F
Event Date Forecast
Athletic vs. Barcelona 12:00 PM CEST on May 25, 2012 Scattered Clouds, High 86° F/ 30° C
Barcelona vs. Athletic 10:00 PM CEST on May 25, 2012 Scattered Clouds, High 86° F/ 30° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 27, 2012 Chance of a Thunderstorm, 85 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 03, 2012 Average High 79° F/ 26° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 25, 2012 Overcast, 74 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 26, 2012 Mostly Cloudy, 72 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Country Club, San Rafael, CA 48.6 °F 46 °F 42 °F 78% West  at  7.0 mph 0.00 in / hr 172 ft 3:00 AM PDT Rapid Fire  
Venetia Valley K-8 School, San Rafael, CA 50.1 °F - 43 °F 76% West  at  5.0 mph 0.00 in / hr 23 ft 3:00 AM PDT Rapid Fire
Downtown Larkspur, Larkspur, CA 50.8 °F - 41 °F 68% West  at  6.3 mph 0.00 in / hr 75 ft 2:59 AM PDT Rapid Fire
Murray Park, Larkspur, CA 50.5 °F - 41 °F 71% North  at  0.0 mph 0.00 in / hr 79 ft 3:00 AM PDT Normal  
Skylark Heights, Larkspur, CA 50.4 °F - 41 °F 70% ENE  at  1.6 mph 0.00 in / hr 187 ft 2:44 AM PDT Rapid Fire  
Red Hill, San Anselmo, CA 48.1 °F 45 °F 40 °F 72% WSW  at  7.0 mph 0.00 in / hr 250 ft 2:57 AM PDT Rapid Fire
King Mountain, Larkspur, CA 47.8 °F 40 °F 40 °F 74% NNW  at  23.0 mph - / hr 460 ft 2:56 AM PDT Normal  
Top of Vista Linda Dr., Mill Valley, CA 51.1 °F - 41 °F 68% North  at  1.0 mph 0.00 in / hr 220 ft 2:58 AM PDT Normal  
MesoWest San Pablo-Met , Richmond, CA 50 °F 44 °F - - West  at  18 mph 0.00 in / hr 164 ft 1:00 AM PDT MADIS
APRSWXNET Mill Valley CA , Mill Valley, CA 51 °F - 41 °F 68% SE  at  2 mph 0.00 in / hr 190 ft 12:47 AM PDT MADIS
Horse Hill, Mill Valley, CA 52.3 °F - 36 °F 54% West  at  0.0 mph 0.00 in / hr 20 ft 2:58 AM PDT Normal  
Mill Valley/Tiburon Line, Mill Valley, CA 51.0 °F - 40 °F 66% WSW  at  3.0 mph 0.00 in / hr 80 ft 3:00 AM PDT Rapid Fire  
Sycamore Park, Mill Valley, CA 51.6 °F - 41 °F 67% SSW  at  1.0 mph 0.00 in / hr 15 ft 2:59 AM PDT Normal  
Manor Hill, Fairfax, CA 48.0 °F 48 °F 41 °F 76% North  at  0.0 mph 0.00 in / hr 217 ft 2:59 AM PDT Rapid Fire  
Throckmorton Ridge Near Mt. Home Inn, Mill Valley, CA 46.1 °F 43 °F 38 °F 72% WNW  at  7.0 mph 0.00 in / hr 966 ft 2:59 AM PDT Rapid Fire
Mt. Tiburon, Tiburon, CA 48.6 °F 49 °F 42 °F 77% West  at  1.0 mph 0.00 in / hr 550 ft 2:47 AM PDT Normal  
MARITIME , Tiburon, CA 51 °F - 42 °F 70% WNW  at  17 mph 0.00 in / hr 0 ft 2:24 AM PDT MADIS
NOS_PORTS Richmond, CA, Richmond, CA 52 °F - - - NW  at  17 mph 0.00 in / hr 0 ft 2:36 AM PDT MADIS
Ignacio, Loma Verde, Novato, CA 51.4 °F - 35 °F 54% South  at  7.4 mph 0.00 in / hr 100 ft 2:40 AM PDT Normal
North Sausalito (Spring St), Sausalito, CA 52.7 °F - 38 °F 57% SE  at  8.1 mph 0.00 in / hr 158 ft 2:24 AM PDT Rapid Fire
Sausalito Yacht Harbor - C-Dock, Sausalito, CA 51.7 °F - 40 °F 64% NNE  at  14.0 mph 0.00 in / hr 10 ft 2:57 AM PDT Normal  
Sausalito Yacht Club, Sausalito, CA 52.3 °F - 40 °F 64% WNW  at  12.0 mph 0.00 in / hr 0 ft 3:00 AM PDT Rapid Fire
Prospect Ave. Sausalito, Sausalito, CA 52.0 °F - 41 °F 66% SW  at  3.0 mph 0.00 in / hr 518 ft 11:46 PM PDT Normal
Sausalito - Atwood Ave., Sausalito, CA 52.7 °F - 34 °F 49% SW  at  1.1 mph 0.00 in / hr 125 ft 2:52 AM PDT Normal  
Wolfback Ridge, Sausalito, CA 46.7 °F 39 °F 39 °F 74% SW  at  22.0 mph 0.00 in / hr 990 ft 2:48 AM PDT Normal  
Pine St, Richmond, CA 49.6 °F 48 °F 39 °F 67% WNW  at  5.0 mph 0.00 in / hr 59 ft 3:00 AM PDT Normal  
Marina Bay, Richmond, CA 51.3 °F - 43 °F 74% NNW  at  4.0 mph 0.00 in / hr 65 ft 2:59 AM PDT Normal
Central Richmond, Richmond, CA 51.1 °F - 41 °F 69% North  at  7.0 mph 0.00 in / hr 69 ft 3:00 AM PDT Rapid Fire
Richmond, CA 51.5 °F - 43 °F 72% West  at  2.0 mph 0.00 in / hr 15 ft 3:00 AM PDT Rapid Fire  
Poinsett Park, El Cerrito, CA 49.8 °F 50 °F 42 °F 74% SW  at  0.0 mph 0.00 in / hr 195 ft 3:00 AM PDT Rapid Fire
El Cerrito / Richmond Heights, El Cerrito, CA 49.0 °F 49 °F 41 °F 74% SW  at  1.0 mph 0.00 in / hr 300 ft 2:50 AM PDT Normal  
APRSWXNET El Sobrante CA , El Sobrante, CA 50 °F - - - North  at  - 0.00 in / hr 324 ft 2:34 AM PDT MADIS
El Cerrito Hills, El Cerrito, CA 50.9 °F - 39 °F 63% ENE  at  0.0 mph 0.00 in / hr 400 ft 3:00 AM PDT Rapid Fire  
RAWS BIG ROCK CA, San Rafael, CA 45 °F 45 °F 39 °F 78% West  at  0 mph 0.00 in / hr 1500 ft 2:33 AM PDT MADIS
RAWS WOODACRE CA, Woodacre, CA 42 °F 33 °F 41 °F 95% WNW  at  19 mph 0.00 in / hr 1399 ft 1:51 AM PDT MADIS
RAWS MIDDLE PEAK CA, Mill Valley, CA 37 °F 25 °F 37 °F 100% SE  at  29 mph 0.00 in / hr 2338 ft 2:32 AM PDT MADIS
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Special Statement
Mobile & Email Alerts Statement as of 10:01 PM PDT on May 24, 2012

... Much cooler with a chance of showers and isolated thunderstorms Friday...

An unseasonably cold weather system will rapidly approach the Bay
area overnight... arriving by Friday morning. Rain showers
currently associated with this system are being reported in
southern Oregon with radars west of Cape Mendocino starting to
pick up returns. The main impact of the system will be cool
temperatures and a continuation of the breezy to locally windy
weather we've been having the last few days.

Skies will start out sunny but with cold morning temperatures in
the upper 30s and 40s for many portions of the Bay area. By
mid-morning the core of the system will pass overhead with very
unstable air aloft. This will allow for cumulus cloud development
over the hills of the Bay area. Rain showers will be possible
through the afternoon hours... especially over the hills but its
possible that any showers could drift over the valleys. Anybody
with outdoor interests such as camping our hiking on Friday should
be prepared for unseasonably cool... possibly wet and windy weather.

Finally... the latest computer model projections have been
consistent in showing an above average chance of thunderstorms
over the far eastern portions of our district... roughly running
southward form the hills of Napa County through the far East Bay
valleys and continuing southward over the higher and mostly
unpopulated areas of Santa Clara and San Benito counties. These
far eastern counties of the Bay area will have the best chance for
seeing thunderstorms roughly from 2 PM to 7 PM Friday afternoon
and evening. Freezing levels will drop to around 6000 feet so ice
pellets and small hail will be possible in some of the heavier
cells along with dangerous cloud to ground lightning.

Any hail that falls on roads can quickly lead to traffic
accidents... especially on the get away Friday of a three day
Holiday weekend. The National Weather Service and California
Highway patrol urge motorists to slow down and stay abreast of the
latest forecast information before heading out this Holiday
weekend. As a reminder... folks heading to the Sierra should expect
winter weather conditions Friday night into Saturday with snow
over the trans-Sierra passes. There are currently snow advisories
in effect for that West Slope of the Sierra until 6 PM Friday.

Http://weather.Gov/sanfrancisco


R walbrun