San Gregorio, CA

2:55 AM PDT on May 25, 2012 (GMT -0700)
Elev: 741 ft
Lon: 122.4° W
Lat: 37.3° 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 Gregorio Weather at a Glance

Updated 2:45 AM PDT
Weather Station - report
San Gregorio
Elevation
590 ft
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Now
Partly Cloudy
Partly Cloudy
Temperature
48.0 °F
Feels Like 48 °F
Wind(mph)
0.0
Sunrise / Set
5:53 AM
8:19 PM
Moon
Waxing Crescent
Tonight
Partly Cloudy 46 °F
Partly Cloudy
Friday
Thunderstorm 55 °F
T-storms
20% chance of precipitation
Friday Night
Thunderstorm 45 °F
T-storms
20% chance of precipitation
Saturday
Partly Cloudy 52 | 45 °F
Partly Cloudy
Sunday
Partly Cloudy 57 | 45 °F
Partly Cloudy
Monday
Partly Cloudy 55 | 43 °F
Partly Cloudy
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
29.77 in
Visibility
10.0 miles
Clouds
Few 1900 ft
Moisture
Humidity
Rainfall
-
Not available.
Snow Depth
Not available.
METAR
METAR KSQL 250930Z AUTO 30014G22KT 10SM FEW019 10/06 A2977 RMK AO2
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Windchill
48 °F
Wind
Speed / Dir
Calm
Wind Gust
33.0 mph
Health
UV
0 out of 16
Pollen
6.40 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Local Activity
View Flu Map
Loading…
Source: BestForecast
Descriptive Forecast
Friday
tstorms Partly cloudy with thunderstorms and a chance of rain in the morning, then mostly cloudy with thunderstorms and a chance of rain. High of 55F. Breezy. Winds from the NW at 20 to 25 mph with gusts to 30 mph. Chance of rain 20%.
Friday Night
nt_tstorms Mostly cloudy with thunderstorms and a chance of rain in the evening, then partly cloudy. Low of 45F. Winds from the NW at 10 to 15 mph. Chance of rain 20%.
Saturday
partlycloudy Partly cloudy. High of 52F. Winds from the WNW at 10 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 45F. Winds from the WNW at 5 to 15 mph.
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 57F. Winds from the WNW at 5 to 15 mph.
Sunday Night
nt_partlycloudy Partly cloudy in the evening, then overcast. Fog overnight. Low of 45F. Winds from the NW at 10 to 15 mph.
Monday
partlycloudy Partly cloudy in the morning, then clear. High of 55F. Breezy. Winds from the WNW at 10 to 20 mph.
Monday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 43F. Winds from the NW at 10 to 15 mph.
Tuesday
partlycloudy Partly cloudy in the morning, then clear. High of 57F. Winds from the WNW at 10 to 15 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 39F. Winds from the NW at 10 to 15 mph.
Wednesday
partlycloudy Clear. High of 61F. Winds from the WNW at 10 to 15 mph.
Wednesday Night
nt_clear Clear. Fog overnight. Low of 48F. Winds from the WNW at 5 to 15 mph.
Thursday
partlycloudy Clear. High of 64F. Winds from the WNW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Fog overnight. Low of 46F. Winds from the WNW at 5 to 15 mph.
Friday
partlycloudy Partly cloudy. High of 64F. Winds from the WNW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 48F. Winds from the WNW at 5 to 15 mph.
Saturday
clear Clear. High of 61F. Winds from the WNW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 52F. Winds from the WNW at 10 to 15 mph.
Sunday
clear Clear. High of 61F. Breezy. Winds from the WNW at 10 to 20 mph.
Sunday Night
nt_clear Clear. Low of 50F. Breezy. Winds from the NW at 10 to 20 mph.
Monday
clear Clear. High of 63F. Breezy. Winds from the WNW at 10 to 20 mph.
Monday Night
nt_clear Clear. Low of 50F. Breezy. Winds from the WNW at 10 to 20 mph.
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Forecast

View Calendar 10-Day Forecast for station KCAHALFM11

Friday, 25
Thunderstorm
55 | 45 °F
T-storms
Chance of
Precipitation
20%
Saturday, 26
Partly Cloudy
52 | 45 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 27
Partly Cloudy
57 | 45 °F
Partly Cloudy
Chance of
Precipitation
10%
Monday, 28
Partly Cloudy
55 | 43 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 29
Partly Cloudy
57 | 39 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 30
Partly Cloudy
61 | 48 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 31
Partly Cloudy
64 | 46 °F
Partly Cloudy
Chance of
Precipitation
0%
Friday, 1
Partly Cloudy
64 | 48 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 2
Clear
61 | 52 °F
Clear
Chance of
Precipitation
0%
Sunday, 3
Clear
61 | 50 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Friday
tstorms Partly cloudy with thunderstorms and a chance of rain in the morning, then mostly cloudy with thunderstorms and a chance of rain. High of 55F. Breezy. Winds from the NW at 20 to 25 mph with gusts to 30 mph. Chance of rain 20%.
Friday Night
nt_tstorms Mostly cloudy with thunderstorms and a chance of rain in the evening, then partly cloudy. Low of 45F. Winds from the NW at 10 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 47 53 | 47 53 | 48 48 | 46
Wind 21 mph NW 24 mph NW 16 mph NW 10 mph NW
Humidity 95% 80% 84% 92%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 65% 58% 77% 37%
Conditions Chance of Rain Thunderstorm Thunderstorm Partly Cloudy
Sunrise & Sunset
5:53 AM
8:19 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.16], Average RMSE [3.06]
The National Weather Service forecast quality is good. MaxT RMSE [2.38], Average RMSE [3.25] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 52F. Winds from the WNW at 10 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 45F. Winds from the WNW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 47 | 46 50 | 47 51 | 49 51 | 50
Wind 9 mph WNW 12 mph WNW 12 mph WNW 8 mph WNW
Humidity 97% 89% 92% 98%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 53% 51% 62% 62%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:52 AM
8:20 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.78], Average RMSE [3.46]
The National Weather Service forecast quality is good. MaxT RMSE [2.46], Average RMSE [3.41] : 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 57F. Winds from the WNW at 5 to 15 mph.
Sunday Night
nt_partlycloudy Partly cloudy in the evening, then overcast. Fog overnight. Low of 45F. Winds from the NW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 47 | 45 55 | 51 55 | 52 53 | 51
Wind 5 mph WNW 9 mph WNW 12 mph WNW 12 mph NW
Humidity 93% 84% 86% 96%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 62% 13% 19% 29%
Conditions Partly Cloudy Clear Clear Fog
Sunrise & Sunset
5:52 AM
8:21 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.49], Average RMSE [3.88]
The National Weather Service forecast quality is good. MaxT RMSE [2.40], Average RMSE [3.30] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Monday
partlycloudy Partly cloudy in the morning, then clear. High of 55F. Breezy. Winds from the WNW at 10 to 20 mph.
Monday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 43F. Winds from the NW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 47 | 46 54 | 49 52 | 47 49 | 47
Wind 12 mph NW 15 mph WNW 15 mph WNW 12 mph NW
Humidity 94% 87% 83% 95%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 90% 1% 0% 5%
Conditions Fog Clear Clear Fog
Sunrise & Sunset
5:51 AM
8:22 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.93], Average RMSE [4.20]
The National Weather Service forecast quality is good. MaxT RMSE [2.46], Average RMSE [3.39] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy in the morning, then clear. High of 57F. Winds from the WNW at 10 to 15 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 39F. Winds from the NW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 47 | 46 53 | 48 54 | 47 50 | 47
Wind 10 mph NW 11 mph WNW 14 mph WNW 11 mph NW
Humidity 93% 82% 80% 94%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 57% 2% 0% 43%
Conditions Fog Clear Clear Fog
Sunrise & Sunset
5:51 AM
8:22 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.98], Average RMSE [3.53]
The National Weather Service forecast quality is fair. MaxT RMSE [2.60], Average RMSE [3.28] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Wednesday
partlycloudy Clear. High of 61F. Winds from the WNW at 10 to 15 mph.
Wednesday Night
nt_clear Clear. Fog overnight. Low of 48F. Winds from the WNW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 44 58 | 54 56 | 51 51 | 49
Wind 9 mph NW 11 mph WNW 13 mph WNW 8 mph NW
Humidity 94% 84% 80% 94%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 41% 0% 0% 0%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:22 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.84], Average RMSE [3.87]
The National Weather Service forecast quality is fair. MaxT RMSE [2.53], Average RMSE [3.14] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Thursday
partlycloudy Clear. High of 64F. Winds from the WNW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Fog overnight. Low of 46F. Winds from the WNW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 48 62 | 55 60 | 54 54 | 53
Wind 6 mph NW 9 mph WNW 11 mph WNW 7 mph NW
Humidity 95% 81% 83% 95%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:22 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.80], Average RMSE [4.07]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Friday
partlycloudy Partly cloudy. High of 64F. Winds from the WNW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 48F. Winds from the WNW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 52 62 | 57 56 | 52 55 | 54
Wind 7 mph WNW 8 mph WNW 13 mph WNW 10 mph WNW
Humidity 96% 87% 84% 97%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 5% 14% 12% 11%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.77], Average RMSE [3.57]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
clear Clear. High of 61F. Winds from the WNW at 5 to 15 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 53 | 52 57 | 53 56 | 52 53 | 51
Wind 8 mph WNW 10 mph WNW 14 mph WNW 11 mph WNW
Humidity 96% 82% 83% 90%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 9% 9% 9% 7%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.82], Average RMSE [3.51]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
clear Clear. High of 61F. Breezy. Winds from the WNW at 10 to 20 mph.
Sunday Night
nt_clear Clear. Low of 50F. Breezy. Winds from the NW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 47 57 | 49 56 | 44 53 | 45
Wind 10 mph NW 12 mph NW 17 mph WNW 13 mph NW
Humidity 86% 73% 63% 73%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 5% 3% 1% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:22 PM
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Monday
clear Clear. High of 63F. Breezy. Winds from the WNW at 10 to 20 mph.
Monday Night
nt_clear Clear. Low of 50F. Breezy. Winds from the WNW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 46 58 | 47 56 | 44 53 | 45
Wind 11 mph NW 11 mph NW 16 mph WNW 12 mph WNW
Humidity 79% 68% 60% 72%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 1% 1% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:22 PM
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 25, 2012 Max Temp Min Temp
Normal (KSQL) 76 °F 49 °F
Record (KSQL) 99 °F (1982) 40 °F (1980)
Yesterday 52.0 °F 47.0 °F
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
Coastal Water Temperatures
Place Temperature
Point Reyes, CA 50.0 °F
San Francisco, CA 54.0 °F
Marine Forecast
Astronomy
May. 25, 2012 Rise Set
Actual Time 5:53 AM PDT 8:19 PM PDT
Civil Twilight 5:23 AM PDT 8:49 PM PDT
Nautical Twilight 4:46 AM PDT 9:27 PM PDT
Astronomical Twilight 4:05 AM PDT 10:08 PM PDT
Moon 9:56 AM PDT No Moon Set
Length Of Visible Light 15h 26m
Length of Day
14h 26m
Tomorrow will be 1m 17s 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
Blue Lakes 0 in 8000 ft
Carson Pass 0 in 8500 ft
Forestdale Creek 1 in 8029 ft
Leavitt Lake 19 in 9400 ft
Ebbetts Pass 0 in 8700 ft
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Nearby Events
Event Date Forecast
Melissa Lyn @ San Gregorio General Store 11:00 AM PDT 2012-05-26 Overcast, 55°F
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
San Carlos 50 °F Partly Cloudy 2:30 AM PDT
Half Moon Bay 48 °F Overcast 2:35 AM PDT
Palo Alto This station is not reporting.
Moffett NAS 52 °F Light Rain 1:56 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 (KSQL)
Wind Speed: 14.0 kts.
Wind Dir: 0° (North)
Ceiling: Unlimited

METAR KSQL 250930Z AUTO 30014G22KT 10SM FEW019 10/06 A2977 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
San Gregorio, CA 48.0 °F 48 °F -48 °F - North  at  0.0 mph 0.00 in / hr 590 ft 2:45 AM PDT Normal
Cuesta La Honda, La Honda, CA 46.7 °F 47 °F 45 °F 94% NW  at  2.8 mph 0.00 in / hr 862 ft 2:55 AM PDT Rapid Fire
Cuesta La Honda, La Honda, CA 49.9 °F 50 °F 44 °F 79% SSE  at  1.8 mph 2.59 in / hr 450 ft 2:55 AM PDT Rapid Fire
Cuesta La Honda, La Honda, CA 46.9 °F 45 °F 43 °F 85% West  at  5.0 mph 0.00 in / hr 697 ft 2:37 AM PDT Normal
APRSWXNET La Honda C, La Honda, CA 47 °F 47 °F 45 °F 93% WNW  at  3 mph 0.00 in / hr 807 ft 2:28 AM PDT MADIS
RAWS LA HONDA CA, La Honda, CA 46 °F 44 °F 42 °F 85% WSW  at  4 mph 0.00 in / hr 804 ft 2:07 AM PDT MADIS
SLS, TUNITAS CREEK, CA 47.5 °F 48 °F 44 °F 89% WNW  at  0.0 mph 0.00 in / hr 450 ft 2:55 AM PDT Rapid Fire  
Langley Hill, Woodside, CA 43.0 °F 43 °F 40 °F 90% East  at  0.0 mph 0.00 in / hr 400 ft 2:45 AM PDT Normal  
Rapley Ranch, Woodside, CA 44.4 °F 44 °F 29 °F 55% SW  at  2.2 mph 0.00 in / hr 1600 ft 2:55 AM PDT Normal  
Skywood, Woodside, CA 43.7 °F 44 °F 38 °F 79% SE  at  0.0 mph 0.00 in / hr 1453 ft 2:50 AM PDT Normal  
Alpine Road, La Honda, CA 43.6 °F 36 °F 41 °F 90% NW  at  17.0 mph 0.00 in / hr 1594 ft 2:55 AM PDT Rapid Fire  
Half Moon Bay, HMB, CA 50.0 °F 48 °F 47 °F 90% WNW  at  5.0 mph 0.00 in / hr 95 ft 2:55 AM PDT Rapid Fire  
Portola Park Heights, La Honda, CA 43.5 °F 44 °F 40 °F 86% North  at  0.0 mph 0.00 in / hr 1475 ft 2:54 AM PDT Normal  
Higgins Canyon, Half Moon Bay, CA 46.4 °F 46 °F 43 °F 89% ESE  at  0.0 mph 0.00 in / hr 380 ft 2:55 AM PDT Rapid Fire  
Central Portola Valley, Portola Valley, CA 47.6 °F 46 °F 39 °F 72% WNW  at  4.0 mph 0.00 in / hr 660 ft 2:49 AM PDT Normal
Woodside, Woodside, CA 48.7 °F 49 °F 41 °F 74% South  at  0.0 mph 0.00 in / hr 375 ft 2:54 AM PDT Normal  
Portola Valley, Portola Valley, CA 56.5 °F - - - WSW  at  0.0 mph 0.00 in / hr 764 ft 2:55 AM PDT Normal  
Alpine Hills, Portola Valley, CA 49.5 °F 46 °F 41 °F 74% WNW  at  7.6 mph 0.00 in / hr 690 ft 2:52 AM PDT Normal  
Woodside Glens, Woodside, CA 50.1 °F - 42 °F 75% NW  at  2.0 mph 0.00 in / hr 381 ft 2:55 AM PDT Normal  
Kings Mountain, Woodside, CA 42.2 °F 34 °F 41 °F 95% WNW  at  17.0 mph 0.00 in / hr 1700 ft 2:55 AM PDT Rapid Fire  
APRSWXNET Los Altos Hills CA , Los Altos, CA 48 °F 48 °F 37 °F 66% West  at  3 mph 0.00 in / hr 62 ft 2:33 AM PDT MADIS
SLAC's Campus, Menlo Park, CA 50.2 °F - 26 °F 38% NNE  at  6.2 mph 0.00 in / hr 0 ft 2:55 AM PDT Rapid Fire  
Sunset Way, Emerald Hills, CA 47.0 °F 45 °F 41 °F 80% WNW  at  5.0 mph 0.00 in / hr 748 ft 2:55 AM PDT Normal
Stulsaft Park, Redwood City, CA 50.6 °F - 41 °F 69% North  at  0.0 mph 0.00 in / hr 233 ft 2:55 AM PDT Rapid Fire  
Emerald Hills, Redwood City, CA 49.0 °F 42 °F 38 °F 66% WNW  at  24.0 mph 0.00 in / hr 790 ft 2:45 AM PDT Normal
Lower Hillcrest, Emerald Hills, CA 48.1 °F 48 °F 40 °F 75% North  at  0.0 mph 0.00 in / hr 535 ft 2:55 AM PDT Rapid Fire  
RAWS PULGAS CA, Half Moon Bay, CA 48 °F 41 °F 39 °F 72% West  at  19 mph 0.00 in / hr 644 ft 1:38 AM PDT MADIS
APRSWXNET W.Menlo Park CA, Menlo Park, CA 52 °F - 42 °F 69% NW  at  3 mph 0.00 in / hr 115 ft 2:30 AM PDT MADIS
RAWS LOS ALTOS CA, Los Altos, CA 48 °F 45 °F 37 °F 65% WNW  at  6 mph 0.00 in / hr 539 ft 2:10 AM PDT MADIS
Los Altos Hills, Los Altos Hills, CA 49.0 °F 48 °F 39 °F 68% WNW  at  4.0 mph 0.00 in / hr 650 ft 2:55 AM PDT Rapid Fire  
Beresford Ave, Redwood City, CA 51.8 °F - 40 °F 67% WSW  at  5.4 mph 0.00 in / hr 66 ft 2:47 AM PDT Normal
Sterling Heights, Redwood City, CA 49.7 °F 50 °F 22 °F 34% NNW  at  3.0 mph 0.00 in / hr 134 ft 2:55 AM PDT Rapid Fire  
Redwood City Hills, Redwood City, CA 51.1 °F - 40 °F 67% WNW  at  7.8 mph 0.00 in / hr 170 ft 2:55 AM PDT Normal  
King's Mountain 2100ft, Woodside, CA 40.1 °F 37 °F 34 °F 78% SW  at  4.0 mph 0.00 in / hr 2100 ft 2:52 AM PDT Normal  
Montebello Rd, Los Altos, CA 40.3 °F 32 °F 36 °F 85% NNW  at  15.0 mph 0.00 in / hr 2300 ft 2:55 AM PDT Rapid Fire  
Devil's Ridge, La Honda, CA 39.7 °F 34 °F 38 °F 95% WSW  at  9.0 mph 0.00 in / hr 2400 ft 2:51 AM PDT Normal  
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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