Healdsburg, CA

5:01 AM PDT on May 25, 2012 (GMT -0700)
Elev: 144 ft
Lon: 122.9° W
Lat: 38.6° 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

Healdsburg Weather at a Glance

Updated 5:00 AM PDT
Weather Station - report
N Healdsburg, Healdsburg
Elevation
212 ft
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Now
Clear
Clear
Temperature
48.5 °F
Feels Like 48 °F
Wind(mph)
0.0
Sunrise / Set
5:51 AM
8:25 PM
Moon
Waxing Crescent
Today
Thunderstorm 70 °F
T-storms
20% chance of precipitation
Tonight
Chance of Rain 48 °F
Chance of Rain
20% chance of precipitation
Tomorrow
Clear 73 | 45 °F
Clear
Sunday
Clear 82 | 45 °F
Clear
Monday
Partly Cloudy 73 | 46 °F
Partly Cloudy
Tuesday
Clear 79 | 50 °F
Clear
Today is forecast to be Cooler than yesterday.
Conditions
Pressure
29.70 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
67%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KSTS 251153Z AUTO 30013KT 10SM CLR 11/03 A2972 RMK AO2 SLP057 T01060028 10117 20089 55008
Don't speak METAR? Read our FAQ.
Weather Radio
Weather Radio Index
Temperature
Windchill
48 °F
Dew Point
38 °F
Wind
Speed / Dir
Calm
Wind Gust
5.0 mph
Health
UV
0 out of 16
Pollen
6.50 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 70F. Breezy. Winds from the NW at 15 to 20 mph. Chance of rain 20%.
Friday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 48F. Winds from the NW at 5 to 20 mph. Chance of rain 20%.
Saturday
clear Clear. High of 73F. Winds from the WNW at 5 to 10 mph.
Saturday Night
nt_clear Clear. Low of 45F. Winds from the NW at 5 to 15 mph.
Sunday
clear Clear. High of 82F. Winds from the West at 5 to 10 mph.
Sunday Night
nt_clear Partly cloudy. Fog overnight. Low of 45F. Winds from the WNW at 5 to 10 mph.
Monday
partlycloudy Clear. High of 73F. Winds from the West at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 46F. Winds from the NW at 5 to 10 mph.
Tuesday
clear Clear. High of 79F. Winds from the West at 5 to 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Low of 50F. Winds from the NW at 5 to 10 mph.
Wednesday
clear Clear. High of 84F. Winds from the WNW at 5 to 10 mph.
Wednesday Night
nt_clear Clear. Low of 50F. Winds from the NW at 5 to 10 mph.
Thursday
clear Clear. High of 88F. Winds from the WNW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 50F. Winds from the NW at 5 to 10 mph.
Friday
clear Clear. High of 86F. Winds from the West at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 54F. Winds from the WNW at 5 to 10 mph.
Saturday
clear Partly cloudy. High of 84F. Winds from the West at 5 to 15 mph.
Saturday Night
nt_clear Partly cloudy. Low of 48F. Winds from the WNW at 5 to 15 mph.
Sunday
clear Clear. High of 82F. Winds from the WNW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds from the NW at 10 to 15 mph.
Monday
clear Clear. High of 84F. Winds from the WNW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 50F. Winds from the NW at 5 to 15 mph.
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Forecast

View Calendar 10-Day Forecast for station KCAHEALD6

Friday, 25
Thunderstorm
70 | 48 °F
T-storms
Chance of
Precipitation
20%
Saturday, 26
Clear
73 | 45 °F
Clear
Chance of
Precipitation
10%
Sunday, 27
Clear
82 | 45 °F
Clear
Chance of
Precipitation
0%
Monday, 28
Partly Cloudy
73 | 46 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 29
Clear
79 | 50 °F
Clear
Chance of
Precipitation
0%
Wednesday, 30
Clear
84 | 50 °F
Clear
Chance of
Precipitation
0%
Thursday, 31
Clear
88 | 50 °F
Clear
Chance of
Precipitation
0%
Friday, 1
Clear
86 | 54 °F
Clear
Chance of
Precipitation
0%
Saturday, 2
Clear
84 | 48 °F
Clear
Chance of
Precipitation
0%
Sunday, 3
Clear
82 | 50 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Friday
tstorms Mostly cloudy with thunderstorms and a chance of rain. High of 70F. Breezy. Winds from the NW at 15 to 20 mph. Chance of rain 20%.
Friday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 48F. Winds from the NW at 5 to 20 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 42 60 | 37 67 | 39 60 | 53
Wind 14 mph NW 18 mph NW 15 mph NW 12 mph NW
Humidity 85% 43% 36% 79%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 65% 77% 52% 34%
Conditions Chance of Rain Thunderstorm Chance of Rain Partly Cloudy
Sunrise & Sunset
5:51 AM
8:25 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.59], Average RMSE [3.08]
The National Weather Service forecast quality is fair. MaxT RMSE [3.31], Average RMSE [3.82] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
clear Clear. High of 73F. Winds from the WNW at 5 to 10 mph.
Saturday Night
nt_clear Clear. Low of 45F. Winds from the NW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 45 66 | 47 70 | 46 51 | 45
Wind 7 mph NNW 9 mph WNW 10 mph WNW 4 mph NW
Humidity 84% 51% 44% 80%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 16% 2% 16% 18%
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 [2.11], Average RMSE [3.10]
The National Weather Service forecast quality is poor. MaxT RMSE [3.95], Average RMSE [3.82] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
clear Clear. High of 82F. Winds from the West at 5 to 10 mph.
Sunday Night
nt_clear Partly cloudy. Fog overnight. Low of 45F. Winds from the WNW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 47 70 | 51 75 | 47 52 | 47
Wind 2 mph NNW 7 mph SW 9 mph West 8 mph NW
Humidity 90% 52% 38% 82%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 13% 13% 13% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:26 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.41], Average RMSE [3.64]
The National Weather Service forecast quality is poor. MaxT RMSE [4.67], Average RMSE [3.87] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Monday
partlycloudy Clear. High of 73F. Winds from the West at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 46F. Winds from the NW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 45 65 | 47 70 | 48 52 | 45
Wind 6 mph WNW 9 mph West 10 mph West 7 mph NW
Humidity 92% 55% 45% 76%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 6% 0% 0% 0%
Conditions Fog 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 [2.72], Average RMSE [4.35]
The National Weather Service forecast quality is poor. MaxT RMSE [4.92], Average RMSE [3.74] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Tuesday
clear Clear. High of 79F. Winds from the West at 5 to 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Low of 50F. Winds from the NW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 45 67 | 47 70 | 46 57 | 47
Wind 4 mph NNW 4 mph WSW 8 mph West 7 mph NW
Humidity 87% 48% 41% 74%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 1% 97%
Conditions Clear Clear Clear Overcast
Sunrise & Sunset
5:49 AM
8:28 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.47], Average RMSE [3.29]
The National Weather Service forecast quality is poor. MaxT RMSE [5.37], Average RMSE [3.75] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Wednesday
clear Clear. High of 84F. Winds from the WNW at 5 to 10 mph.
Wednesday Night
nt_clear Clear. Low of 50F. Winds from the NW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 47 76 | 55 80 | 47 60 | 51
Wind 6 mph NNW 5 mph West 8 mph West 7 mph NW
Humidity 81% 47% 32% 73%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:28 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.39], Average RMSE [3.51]
The National Weather Service forecast quality is poor. MaxT RMSE [5.71], Average RMSE [3.55] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Thursday
clear Clear. High of 88F. Winds from the WNW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 50F. Winds from the NW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 47 77 | 47 81 | 48 60 | 54
Wind 4 mph North 5 mph West 7 mph West 5 mph NW
Humidity 81% 35% 33% 78%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:28 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.63], Average RMSE [3.45]
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Friday
clear Clear. High of 86F. Winds from the West at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 54F. Winds from the WNW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 47 76 | 51 78 | 49 55 | 49
Wind 4 mph NNW 5 mph WSW 10 mph West 8 mph WNW
Humidity 83% 40% 35% 78%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 0% 0% 0% 8%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:28 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.81], Average RMSE [3.10]
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
clear Partly cloudy. High of 84F. Winds from the West at 5 to 15 mph.
Saturday Night
nt_clear Partly cloudy. Low of 48F. Winds from the WNW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 51 75 | 52 77 | 50 57 | 50
Wind 6 mph WNW 7 mph West 11 mph West 9 mph WNW
Humidity 86% 45% 39% 78%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 16% 20% 24% 17%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:28 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.33], Average RMSE [2.92]
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
clear Clear. High of 82F. Winds from the WNW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds from the NW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 46 73 | 61 75 | 58 55 | 44
Wind 8 mph NW 9 mph WNW 14 mph WNW 11 mph NW
Humidity 85% 66% 53% 67%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 9% 7% 5% 3%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:28 PM
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Monday
clear Clear. High of 84F. Winds from the WNW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 50F. Winds from the NW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 44 76 | 61 77 | 57 58 | 46
Wind 9 mph NW 9 mph WNW 13 mph WNW 10 mph NW
Humidity 76% 59% 49% 65%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 1% 1% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:28 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 51 °F
Yesterday's Heating Degree Days: 2
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
Hydesville, CA 151 miles 2.7 1:19 PM PDT
2012-05-23
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
Point Reyes, CA 50.0 °F
Arena Cove, CA 48.0 °F
San Francisco, CA 53.1 °F
Richmond, CA 57.0 °F
Marine Forecast
Astronomy
May. 25, 2012 Rise Set
Actual Time 5:51 AM PDT 8:25 PM PDT
Civil Twilight 5:21 AM PDT 8:56 PM PDT
Nautical Twilight 4:42 AM PDT 9:34 PM PDT
Astronomical Twilight 4:00 AM PDT 10:17 PM PDT
Moon 9:56 AM PDT No Moon Set
Length Of Visible Light 15h 35m
Length of Day
14h 33m
Tomorrow will be 1m 20s longer.
Waxing Crescent, 18% 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
Weaverville
32 °F
Truckee-Tahoe
35 °F
Blue Canyon
36 °F
Alturas
36 °F
Mount Shasta
Record Extremes
Snow Depth
Station Depth Elevation
CSS Lab 0 in 6900 ft
Squaw Valley 206 in 8200 ft
Ward Creek #3 0 in 6750 ft
Independence Lake 39 in 8450 ft
Rubicon #2 1 in 7500 ft
Snow Depth Reports — Snow Depth Map
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Travel & Activities
Travel Planning
Travel Planner Road Trip Planner
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Nearby Events
Event Date Forecast
Monkey Rock Presents: The North Bay Experiment with ECHOREV + Johnny Nicholson 7:00 PM PDT 2012-05-25 Chance of Rain, 62°F
Healdsburg Barn Dance presented by Active 20-30 6:00 PM PDT 2012-05-25 Chance of Rain, 65°F
Our SUMMER NIGHTS kick-off event 1:00 PM PDT 2012-05-26 Partly Cloudy, 68°F
Roach Gigz, Berner and Clyder Carson 7:00 PM PDT 2012-05-27 Clear, 68°F
Temple Veil 6:00 PM PDT 2012-05-27 Clear, 71°F
Calvin Keys Organ Quartet 7:00 PM PDT 2012-06-01 Clear, 68°F
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
Santa Rosa 51 °F Clear 4:53 AM PDT
Petaluma 46 °F Partly Cloudy 4:55 AM PDT
Novato 50 °F Clear 4:55 AM PDT
Ukiah 47 °F Mostly Cloudy 4:56 AM 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 (KSTS)
Wind Speed: 13.0 kts.
Wind Dir: 131° (SE)
Ceiling: Unlimited

METAR KSTS 251153Z AUTO 30013KT 10SM CLR 11/03 A2972 RMK AO2 SLP057 T01060028 10117 20089 55008

View all Reports & Maps
Sports
Event Date Forecast
Royals vs. Orioles 7:05 PM EDT on May 25, 2012 Clear, 79 °F
Cubs vs. Pirates 7:05 PM EDT on May 25, 2012 Chance of a Thunderstorm, 81 °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, 81 °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, 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
N Healdsburg, Healdsburg, CA 48.5 °F 48 °F 38 °F 67% SE  at  0.0 mph 0.00 in / hr 212 ft 5:00 AM PDT Normal
NNW Healdsburg, Healdsburg, CA 48.4 °F 48 °F 39 °F 70% West  at  1.0 mph 0.00 in / hr 311 ft 5:01 AM PDT Rapid Fire
MAP HEALDSBURG CA , Healdsburg, CA 49 °F 49 °F 40 °F 71% North  at  - 0.00 in / hr 203 ft 4:00 AM PDT MADIS
NonFedAWOS HEALDSBURG , Healdsburg, CA 48 °F 45 °F 43 °F 81% WNW  at  7 mph 0.00 in / hr 277 ft 4:35 AM PDT MADIS
Lytton, Geyserville, CA 48.3 °F 45 °F 38 °F 67% West  at  6.6 mph 0.00 in / hr 174 ft 4:57 AM PDT Rapid Fire
Eastside Road, Healdsburg, CA 51.1 °F - 40 °F 65% West  at  6.0 mph 0.00 in / hr 92 ft 4:56 AM PDT Normal
Dry Creek Valley, Healdsburg, CA 46.9 °F 43 °F 47 °F - West  at  7.0 mph 0.00 in / hr 650 ft 5:01 AM PDT Rapid Fire
Windsor Fire, Windsor, CA 50.9 °F - 37 °F 59% NW  at  8.0 mph 0.00 in / hr 128 ft 5:00 AM PDT Normal
Canyon Rd., Geyserville, CA 45.8 °F 46 °F 37 °F 72% NE  at  0.0 mph 0.00 in / hr 300 ft 5:00 AM PDT Normal  
Geyserville, CA 47.1 °F 46 °F 38 °F 70% West  at  3.6 mph 0.00 in / hr 207 ft 4:57 AM PDT Rapid Fire
Canyon 3, Rio Nido, CA 48.0 °F 48 °F 40 °F 73% North  at  0.0 mph 0.00 in / hr 115 ft 4:38 AM PDT Normal  
MAP RIO NIDO CA , Rio Nido, CA 50 °F - 38 °F 64% North  at  - 0.00 in / hr 98 ft 4:00 AM PDT MADIS
Dry Creek Ridge, Cloverdale, CA 46.9 °F 45 °F 22 °F 37% SSE  at  5.0 mph 0.00 in / hr 800 ft 5:01 AM PDT Rapid Fire  
Stumptown Brewery, Guerneville, CA 48.7 °F 49 °F 40 °F 72% NW  at  0.0 mph 0.00 in / hr 55 ft 5:00 AM PDT Rapid Fire
Austin Creek State Recreation Area, Guerneville, CA 45.1 °F 43 °F 38 °F 75% East  at  4.0 mph 0.00 in / hr 988 ft 4:54 AM PDT Normal  
Armstrong Valley (Fire), Guerneville, CA 48.2 °F 48 °F 33 °F 55% SE  at  0.0 mph 0.00 in / hr 62 ft 5:01 AM PDT Normal
APRSWXNET Calistoga CA , Santa Rosa, CA 45 °F 45 °F 39 °F 78% NNE  at  1 mph 0.00 in / hr 1099 ft 4:31 AM PDT MADIS
Sebastopol, CA 48.9 °F 49 °F 38 °F 67% SE  at  0.0 mph 0.00 in / hr 213 ft 4:06 AM PDT Normal  
JohnDory Vineyard, Sebastopol, CA 48.8 °F 49 °F 37 °F 64% NNW  at  2.0 mph 0.00 in / hr 180 ft 4:58 AM PDT Normal
Laguna Road, Santa Rosa, CA 50.5 °F - 38 °F 62% NNE  at  10.0 mph - / hr 0 ft 4:56 AM PDT Normal  
SnomaHoma Santa Rosa, Santa Rosa, CA 51.6 °F - 36 °F 55% NNE  at  0.0 mph 0.00 in / hr 134 ft 5:01 AM PDT Normal
APRSWXNET Cazadero CA , Sheridan, CA 48 °F 48 °F 39 °F 71% North  at  1 mph 0.00 in / hr 882 ft 4:04 AM PDT MADIS
Calistoga Rd at Porter Creek Rd, Santa Rosa, CA 45.4 °F 45 °F 39 °F 78% SE  at  0.0 mph 0.00 in / hr 1083 ft 4:41 AM PDT Normal  
Fountaingrove Village, Santa Rosa, CA 48.4 °F 48 °F 38 °F 67% North  at  0.0 mph 0.00 in / hr 555 ft 5:00 AM PDT Normal  
Lynmar Estate, Sebastopol, CA 50.6 °F - 40 °F 66% North  at  0.0 mph 0.00 in / hr 113 ft 5:00 AM PDT Normal
Palomino Lakes, Cloverdale, CA 45.5 °F 46 °F 34 °F 64% NNW  at  0.0 mph 0.00 in / hr 800 ft 5:01 AM PDT Rapid Fire
Graton, CA 48.1 °F 48 °F 37 °F 65% North  at  0.0 mph 0.00 in / hr 148 ft 5:00 AM PDT Normal
Greater Calistoga, Calistoga, CA 44.6 °F 42 °F 40 °F 82% South  at  4.7 mph - / hr 988 ft 4:49 AM PDT Normal  
RAWS SANTA ROSA CA, Santa Rosa, CA 48 °F 46 °F 37 °F 65% NW  at  5 mph 0.00 in / hr 599 ft 4:29 AM PDT MADIS
Santa Rosa,Ca., Santa Rosa, CA 51.2 °F - 38 °F 60% WNW  at  18.4 mph 0.00 in / hr 105 ft 5:01 AM PDT Rapid Fire
Gunsalus Vineyard, Sebastopol, CA 48.4 °F 47 °F 39 °F 69% WNW  at  4.0 mph 0.00 in / hr 285 ft 4:51 AM PDT Normal  
APRSWXNET Santa Rosa CA , Santa Rosa, CA 49 °F 49 °F 38 °F 65% NE  at  1 mph 0.00 in / hr 97 ft 4:27 AM PDT MADIS
The Terraces, Monte Rio, Monte Rio, CA 48.9 °F 49 °F 39 °F 68% North  at  0.0 mph 0.00 in / hr 360 ft 5:01 AM PDT Normal  
Starrett Hill 3rd Level, Monte Rio, CA 50.4 °F - 39 °F 65% SSW  at  0.0 mph 2.59 in / hr 348 ft 5:01 AM PDT Rapid Fire  
SRJC-DP, Santa Rosa, CA 52.5 °F - 37 °F 56% North  at  4.7 mph 0.00 in / hr 187 ft 5:01 AM PDT Normal  
Sans Souci, Sebastopol, CA 51.3 °F - 41 °F 68% SSE  at  0.0 mph 0.00 in / hr 285 ft 4:50 AM PDT Normal  
coffeelane, Sebastopol, CA 48.0 °F 48 °F 39 °F 70% NW  at  0.0 mph 0.00 in / hr 418 ft 4:47 AM PDT Normal  
The Woods, Santa Rosa, CA 51.3 °F - 38 °F 61% North  at  0.0 mph 0.00 in / hr 0 ft 5:01 AM PDT Rapid Fire  
HADS VENADO CA, Rio Nido, CA - - - - North  at  - 0.00 in / hr 1259 ft 4:00 AM PDT MADIS
MAP LAKE SONOMA, CA , Cloverdale, CA 43 °F 43 °F 38 °F 82% North  at  - 0.00 in / hr 1305 ft 3:00 AM PDT MADIS
RAWS HAWKEYE CA, Geyserville, CA 41 °F 31 °F 33 °F 72% NW  at  22 mph 0.00 in / hr 2023 ft 3:56 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