Graton, CA

12:06 AM PDT on May 25, 2012 (GMT -0700)
Elev: 138 ft
Lon: 122.9° W
Lat: 38.4° N
Source
Rapid Fire Updates™
 Updated 11:53 PM PDT Get Free Weather Stickers® Share:
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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

Graton Weather at a Glance

Updated 11:53 PM PDT
Weather Station
Vacaville (KVCB)
Elevation
112 ft
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Now
Clear
Clear
Temperature
57 °F
Feels Like 57 °F
Wind(mph)
13
Sunrise / Set
5:52 AM
8:24 PM
Moon
Waxing Crescent
Tonight
Clear 50 °F
Clear
Friday
Chance of a Thunderstorm 79 °F
Chance of T-storms
30% chance of precipitation
Friday Night
Chance of a Thunderstorm 52 °F
Chance of T-storms
20% chance of precipitation
Saturday
Partly Cloudy 73 | 50 °F
Partly Cloudy
Sunday
Clear 79 | 50 °F
Clear
Monday
Clear 75 | 50 °F
Clear
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
29.68 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
40%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KVCB 250653Z AUTO 31011G19KT 10SM CLR 14/01 A2968 RMK AO2 SLP049 T01390006 TSNO $
Don't speak METAR? Read our FAQ.
Weather Radio
Weather Radio Index
Temperature
Temperature
57 °F
Dew Point
33 °F
Wind
Speed / Dir
13 mph from NW
Wind Gust
22 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
chancetstorms Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 79F. Winds from the WNW at 5 to 15 mph. Chance of rain 30%.
Friday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and a chance of rain in the evening, then partly cloudy. Low of 52F. Winds from the West at 5 to 10 mph. Chance of rain 20%.
Saturday
partlycloudy Partly cloudy in the morning, then clear. High of 73F. Winds from the SW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 50F. Winds from the WSW at 5 to 15 mph.
Sunday
clear Clear. High of 79F. Winds from the WSW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds from the SW at 5 to 10 mph.
Monday
clear Clear. High of 75F. Winds from the SW at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 50F. Winds from the SW at 5 to 10 mph.
Tuesday
clear Clear. High of 77F. Winds less than 5 mph.
Tuesday Night
nt_clear Clear. Low of 50F. Winds from the WSW at 5 to 10 mph.
Wednesday
clear Clear. High of 84F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Low of 55F. Winds from the WSW at 5 to 10 mph.
Thursday
clear Clear. High of 91F. Winds from the WSW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 57F. Winds from the WSW at 5 to 15 mph.
Friday
clear Clear. High of 86F. Winds from the WSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 55F. Winds from the WSW at 5 to 10 mph.
Saturday
clear Clear. High of 82F. Winds from the WSW at 5 to 10 mph.
Saturday Night
nt_clear Partly cloudy. Low of 54F. Winds from the WSW at 5 to 10 mph.
Sunday
partlycloudy Partly cloudy. High of 81F. Winds from the West at 5 to 10 mph.
Sunday Night
nt_clear Clear. Low of 52F. Winds from the West at 5 to 10 mph.
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Forecast

View Calendar 10-Day Forecast for station KVCB

Friday, 25
Chance of a Thunderstorm
79 | 52 °F
Chance of T-storms
Chance of
Precipitation
30%
Saturday, 26
Partly Cloudy
73 | 50 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 27
Clear
79 | 50 °F
Clear
Chance of
Precipitation
0%
Monday, 28
Clear
75 | 50 °F
Clear
Chance of
Precipitation
0%
Tuesday, 29
Clear
77 | 50 °F
Clear
Chance of
Precipitation
0%
Wednesday, 30
Clear
84 | 55 °F
Clear
Chance of
Precipitation
0%
Thursday, 31
Clear
91 | 57 °F
Clear
Chance of
Precipitation
0%
Friday, 1
Clear
86 | 55 °F
Clear
Chance of
Precipitation
0%
Saturday, 2
Clear
82 | 54 °F
Clear
Chance of
Precipitation
0%
Sunday, 3
Partly Cloudy
81 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Friday
chancetstorms Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 79F. Winds from the WNW at 5 to 15 mph. Chance of rain 30%.
Friday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and a chance of rain in the evening, then partly cloudy. Low of 52F. Winds from the West at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 38 65 | 34 67 | 30 61 | 49
Wind 11 mph West 7 mph WNW 6 mph WNW 5 mph WSW
Humidity 60% 31% 24% 67%
Chance of Precip. 20% 30% 30% 10%
Cloud Cover 47% 58% 42% 92%
Conditions Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:52 AM
8:24 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.70], Average RMSE [2.18]
The National Weather Service forecast quality is excellent. MaxT RMSE [1.17], Average RMSE [2.37] : Use NWS
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Saturday
partlycloudy Partly cloudy in the morning, then clear. High of 73F. Winds from the SW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 50F. Winds from the WSW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 44 69 | 47 71 | 47 61 | 50
Wind 6 mph WSW 8 mph SSW 12 mph SW 7 mph WSW
Humidity 63% 44% 43% 69%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 35% 46% 0% 17%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:51 AM
8:25 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.18], Average RMSE [2.18]
The National Weather Service forecast quality is good. MaxT RMSE [1.95], Average RMSE [2.42] : Use NWS
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Sunday
clear Clear. High of 79F. Winds from the WSW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 45 69 | 48 77 | 48 59 | 49
Wind 6 mph WSW 4 mph SW 11 mph WSW 8 mph SW
Humidity 70% 46% 36% 68%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 14% 1% 14% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:26 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.07], Average RMSE [2.10]
The National Weather Service forecast quality is fair. MaxT RMSE [2.69], Average RMSE [3.18] : Use NWS
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Monday
clear Clear. High of 75F. Winds from the SW at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 50F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 47 74 | 53 70 | 43 57 | 52
Wind 5 mph WSW 5 mph SW 9 mph SW 7 mph SW
Humidity 74% 46% 38% 82%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 4% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:27 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.92], Average RMSE [2.92]
The National Weather Service forecast quality is fair. MaxT RMSE [3.06], Average RMSE [3.47] : Use NWS
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Tuesday
clear Clear. High of 77F. Winds less than 5 mph.
Tuesday Night
nt_clear Clear. Low of 50F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 44 71 | 42 74 | 44 56 | 46
Wind 4 mph WSW 2 mph West 7 mph SW 6 mph WSW
Humidity 71% 36% 34% 68%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:27 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.23], Average RMSE [3.56]
The National Weather Service forecast quality is fair. MaxT RMSE [3.50], Average RMSE [3.53] : Use NWS
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Wednesday
clear Clear. High of 84F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Low of 55F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 47 76 | 49 82 | 50 63 | 49
Wind 3 mph WSW 3 mph NNW 7 mph WSW 7 mph WSW
Humidity 79% 38% 33% 60%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:27 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.11], Average RMSE [4.82]
The National Weather Service forecast quality is poor. MaxT RMSE [4.10], Average RMSE [3.53] : Use NWS
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Thursday
clear Clear. High of 91F. Winds from the WSW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 57F. Winds from the WSW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 46 80 | 41 86 | 51 64 | 51
Wind 4 mph WSW 3 mph WSW 10 mph SW 8 mph WSW
Humidity 64% 24% 28% 65%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:27 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.14], Average RMSE [3.79]
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Friday
clear Clear. High of 86F. Winds from the WSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 55F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 52 81 | 53 83 | 56 65 | 52
Wind 5 mph WSW 4 mph SW 9 mph WSW 7 mph WSW
Humidity 72% 36% 39% 65%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 0% 0% 0% 2%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:27 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.24], Average RMSE [4.15]
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Saturday
clear Clear. High of 82F. Winds from the WSW at 5 to 10 mph.
Saturday Night
nt_clear Partly cloudy. Low of 54F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 54 79 | 69 79 | 64 61 | 53
Wind 5 mph SW 5 mph WSW 9 mph WSW 7 mph WSW
Humidity 85% 70% 61% 76%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 15% 11% 7% 21%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:27 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.52], Average RMSE [4.02]
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. High of 81F. Winds from the West at 5 to 10 mph.
Sunday Night
nt_clear Clear. Low of 52F. Winds from the West at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 51 76 | 61 78 | 53 61 | 45
Wind 5 mph WSW 5 mph WNW 9 mph West 7 mph West
Humidity 85% 60% 42% 57%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 36% 21% 7% 4%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:27 PM
Source: BestForecast at 6:55 PM PDT on May 24, 2012
Descriptive Forecast
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 46 77 | 57 79 | 51 64 | 44
Wind 4 mph West 5 mph WNW 9 mph West 6 mph West
Humidity 66% 48% 35% 50%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% % % %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:27 PM
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 25, 2012 Max Temp Min Temp
Normal (KSTS) 76 °F 48 °F
Record (KSTS) 84 °F (2000) 41 °F (2008)
Yesterday 74 °F 55 °F
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
Petrolia, CA 150 miles 2.6 10:18 AM PDT
2012-05-22
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
Thursday Good
OZONE
Friday Good
OZONE
Saturday Good
OZONE
Sunday Good
OZONE
Monday Good
OZONE
Tuesday Good
OZONE
Coastal Water Temperatures
Place Temperature
Point Reyes, CA 51.1 °F
Arena Cove, CA 48.0 °F
San Francisco, CA 55.0 °F
Richmond, CA 59.0 °F
Marine Forecast
Astronomy
May. 25, 2012 Rise Set
Actual Time 5:52 AM PDT 8:24 PM PDT
Civil Twilight 5:21 AM PDT 8:55 PM PDT
Nautical Twilight 4:43 AM PDT 9:33 PM PDT
Astronomical Twilight 4:01 AM PDT 10:16 PM PDT
Moon 9:56 AM PDT No Moon Set
Length Of Visible Light 15h 33m
Length of Day
14h 32m
Tomorrow will be 1m 21s longer.
Waxing Crescent, 16% 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
99 °F
Needles
98 °F
Palm Springs
98 °F
Thermal
96 °F
Imperial
96 °F
Blythe
24 °F
Truckee-Tahoe
28 °F
South Lake Tahoe
30 °F
Alturas
35 °F
Weaverville
36 °F
Montague
Record Extremes
Snow Depth
Station Depth Elevation
CSS Lab 0 in 6900 ft
Ward Creek #3 0 in 6750 ft
Squaw Valley 1 in 8200 ft
Rubicon #2 0 in 7500 ft
Independence Lake 39 in 8450 ft
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Nearby Events
Event Date Forecast
Earl Thomas plus Hand Me Down 8:00 PM PDT 2012-05-25 Chance of Rain, 59°F
Nell Robinson 8:00 PM PDT 2012-05-25 Chance of Rain, 59°F
Monkey Rock Presents: The North Bay Experiment with ECHOREV + Johnny Nicholson 7:00 PM PDT 2012-05-25 Chance of Rain, 62°F
PUNCHING BILLY 8:00 PM PDT 2012-05-25 Chance of Rain, 59°F
FOOL FOR LOVE 8:00 PM PDT 2012-05-25 Chance of Rain, 59°F
HOT BUTTERED RUM 9:00 PM PDT 2012-05-25 Chance of Rain, 57°F
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
Santa Rosa 52 °F Clear 11:53 PM PDT
Petaluma 48 °F Partly Cloudy 11:55 PM PDT
Novato 54 °F Clear 11:55 PM PDT
Napa County 50 °F Clear 11:54 PM PDT
View all Aviation Tools
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KVCB)
Wind Speed: 11.0 kts.
Wind Dir: 310° (NW)
Ceiling: Unlimited

METAR KVCB 250653Z AUTO 31011G19KT 10SM CLR 14/01 A2968 RMK AO2 SLP049 T01390006 TSNO $

View all Reports & Maps
Sports
Event Date Forecast
Twins vs. White Sox 7:10 PM CDT on May 24, 2012 Partly Cloudy, 86 °F
Phillies vs. Cardinals 7:15 PM CDT on May 24, 2012 Clear, 86 °F
Event Date Forecast
Athletic vs. Barcelona 12:00 PM CEST on May 25, 2012 Clear, High 84° F/ 29° C
Barcelona vs. Athletic 10:00 PM CEST on May 25, 2012 Clear, 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
Toyota/Save Mart 350 12:19 PM PDT on June 24, 2012 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 25, 2012 Overcast, 76 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 26, 2012 Mostly Cloudy, 74 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Graton, CA 48.7 °F 49 °F 38 °F 67% North  at  0.0 mph 0.00 in / hr 148 ft 12:05 AM PDT Normal
Sans Souci, Sebastopol, CA 53.6 °F - 42 °F 66% SE  at  0.0 mph 0.00 in / hr 285 ft 12:00 AM PDT Normal  
Lynmar Estate, Sebastopol, CA 51.1 °F - 42 °F 70% North  at  0.0 mph 0.00 in / hr 113 ft 12:00 AM PDT Normal
coffeelane, Sebastopol, CA 49.8 °F 50 °F 40 °F 70% NW  at  0.0 mph 0.00 in / hr 418 ft 12:01 AM PDT Normal  
Gunsalus Vineyard, Sebastopol, CA 49.7 °F 50 °F 41 °F 71% NW  at  2.0 mph 0.00 in / hr 285 ft 12:05 AM PDT Normal  
Sebastopol, CA 50.2 °F - 40 °F 69% SSW  at  2.0 mph 0.00 in / hr 213 ft 12:05 AM PDT Normal  
Laguna Road, Santa Rosa, CA 52.1 °F - 39 °F 62% NNE  at  5.0 mph - / hr 0 ft 11:55 PM PDT Normal  
JohnDory Vineyard, Sebastopol, CA 49.1 °F 49 °F 39 °F 69% West  at  1.0 mph 0.00 in / hr 180 ft 11:43 PM PDT Normal
Sebastopol West County, Sebastopol, CA 48.5 °F 48 °F 40 °F 73% West  at  3.0 mph 0.00 in / hr 65 ft 12:05 AM PDT Normal
Sebastopol, Sebastopol, CA 47.4 °F 47 °F 40 °F 75% WNW  at  0.0 mph 0.00 in / hr 509 ft 12:05 AM PDT Normal
Occidental, CA 47.5 °F 48 °F 38 °F 69% West  at  0.0 mph 0.00 in / hr 750 ft 12:04 AM PDT Rapid Fire  
APRSWXNET Santa Rosa CA , Santa Rosa, CA 52 °F - 40 °F 63% WNW  at  2 mph 0.00 in / hr 97 ft 11:26 PM PDT MADIS
SnomaHoma Santa Rosa, Santa Rosa, CA 53.1 °F - 37 °F 54% WSW  at  0.0 mph 0.00 in / hr 134 ft 12:06 AM PDT Normal
Santa Rosa,Ca., Santa Rosa, CA 52.5 °F - 39 °F 61% WNW  at  8.1 mph 0.00 in / hr 105 ft 12:06 AM PDT Rapid Fire
Valley Ford, CA 45.8 °F 44 °F 28 °F 51% WNW  at  4.0 mph 0.00 in / hr 363 ft 11:57 PM PDT Normal
Santa Rosa Corporate Center, Santa Rosa, CA 52.8 °F - 40 °F 62% WSW  at  9.0 mph 0.00 in / hr 122 ft 12:05 AM PDT Normal
APRSWXNET Occidental CA , Occidental, CA 47 °F 47 °F 41 °F 79% NW  at  0 mph 0.00 in / hr 977 ft 8:45 PM PDT MADIS
The Woods, Santa Rosa, CA 53.3 °F - 40 °F 61% North  at  0.0 mph 0.00 in / hr 0 ft 12:06 AM PDT Rapid Fire  
Bellevue Ranch, Santa Rosa, CA 53.5 °F - 40 °F 61% WNW  at  8.0 mph 0.00 in / hr 0 ft 12:06 AM PDT Rapid Fire  
MAP RIO NIDO CA , Rio Nido, CA 53 °F - 40 °F 61% North  at  - 0.00 in / hr 98 ft 11:00 PM PDT MADIS
The Terraces, Monte Rio, Monte Rio, CA 50.9 °F - 40 °F 67% NNW  at  0.0 mph 0.00 in / hr 360 ft 12:01 AM PDT Normal  
Bloomfield, Petaluma, CA 44.8 °F 45 °F 42 °F 90% WNW  at  1.0 mph 0.00 in / hr 133 ft 12:05 AM PDT Normal  
Starrett Hill 3rd Level, Monte Rio, CA 52.9 °F - 41 °F 63% ENE  at  0.2 mph 2.59 in / hr 348 ft 12:06 AM PDT Rapid Fire  
Windsor Fire, Windsor, CA 52.5 °F - 39 °F 59% NNW  at  9.0 mph 0.00 in / hr 128 ft 12:05 AM PDT Normal
Stumptown Brewery, Guerneville, CA 52.3 °F - 41 °F 66% WSW  at  1.0 mph 0.00 in / hr 55 ft 12:04 AM PDT Rapid Fire
MesoWest Santa Rosa , Santa Rosa, CA 57 °F - - - NW  at  9 mph 0.00 in / hr 161 ft 10:00 PM PDT MADIS
SRJC-DP, Santa Rosa, CA 55.2 °F - 38 °F 52% WNW  at  9.2 mph 0.00 in / hr 187 ft 12:05 AM PDT Normal  
RAWS SANTA ROSA CA, Santa Rosa, CA 50 °F 46 °F 39 °F 65% West  at  9 mph 0.00 in / hr 599 ft 11:29 PM PDT MADIS
Canyon 3, Rio Nido, CA 50.8 °F - 41 °F 70% SSW  at  0.0 mph 0.00 in / hr 115 ft 11:52 PM PDT Normal  
Armstrong Valley (Fire), Guerneville, CA 50.2 °F - 34 °F 53% South  at  0.0 mph 0.00 in / hr 62 ft 12:01 AM PDT Normal
Eastside Road, Healdsburg, CA 52.7 °F - 42 °F 66% SSW  at  6.0 mph 0.00 in / hr 92 ft 11:55 PM PDT Normal
Fountaingrove Village, Santa Rosa, CA 49.8 °F 50 °F 39 °F 67% North  at  0.0 mph 0.00 in / hr 555 ft 12:06 AM PDT Normal  
Ragle Ranch, Santa Rosa, CA 52.3 °F - 40 °F 64% West  at  3.0 mph 0.00 in / hr 204 ft 11:59 PM PDT Normal  
Northeast, Santa Rosa, CA 52.2 °F - 39 °F 60% WNW  at  4.0 mph 0.00 in / hr 0 ft 12:05 AM PDT Normal
Montgomery Village, Santa Rosa, CA 51.0 °F - 38 °F 60% North  at  3.0 mph 0.00 in / hr 196 ft 12:06 AM PDT Rapid Fire
Rohnert Park, CA 54.5 °F - 47 °F 75% WNW  at  4.0 mph 0.00 in / hr 108 ft 9:42 PM PDT Rapid Fire  
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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