Union City, CA

6:07 AM PDT on May 25, 2012 (GMT -0700)
Elev: 13 ft
Lon: 122.0° W
Lat: 37.6° 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

Union City Weather at a Glance

Updated 6:07 AM PDT
Weather Station - report
Union Landing, Union City
Elevation
10 ft
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Now
Partly Cloudy
Partly Cloudy
Temperature
51.0 °F
Feels Like 51.0 °F
Wind(mph)
13.7
Sunrise / Set
5:51 AM
8:19 PM
Moon
Waxing Crescent
Today
Thunderstorm 57 °F
T-storms
20% chance of precipitation
Tonight
Thunderstorm 50 °F
T-storms
20% chance of precipitation
Tomorrow
Partly Cloudy 61 | 50 °F
Partly Cloudy
Sunday
Partly Cloudy 66 | 50 °F
Partly Cloudy
Monday
Partly Cloudy 59 | 52 °F
Partly Cloudy
Tuesday
Partly Cloudy 64 | 50 °F
Partly Cloudy
Today is forecast to be Much Cooler than yesterday.
Conditions
Pressure
29.77 in
Visibility
10.0 miles
Clouds
Few 3400 ft
Moisture
Humidity
79%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KHWD 251254Z AUTO 29011G18KT 10SM FEW034 11/06 A2974 RMK AO2 SLP080 T01060061
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
51.0 °F
Dew Point
45 °F
Wind
Speed / Dir
13.7 mph from West
Wind Gust
19.6 mph
Health
UV
0 out of 16
Pollen
6.50 out of 12
Pollen Forecast
PM2.5
Good
Flu Activity
Local Activity
View Flu Map
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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 57F. Breezy. Winds from the WNW 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 50F. Winds from the WSW at 5 to 15 mph. Chance of rain 20%.
Saturday
partlycloudy Partly cloudy. High of 61F. Winds from the WSW at 10 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 50F. Winds from the SW at 5 to 15 mph.
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 66F. Winds from the West at 5 to 15 mph.
Sunday Night
nt_partlycloudy Partly cloudy in the evening, then overcast. Fog overnight. Low of 50F. Winds from the West at 5 to 10 mph.
Monday
partlycloudy Overcast in the morning, then clear. High of 59F. Winds from the West at 5 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy in the evening, then mostly cloudy. Fog overnight. Low of 52F. Winds from the West at 5 to 10 mph.
Tuesday
partlycloudy Overcast in the morning, then clear. High of 64F. Winds from the West at 5 to 10 mph.
Tuesday Night
nt_mostlycloudy Mostly cloudy. Fog overnight. Low of 50F. Winds less than 5 mph.
Wednesday
partlycloudy Clear. High of 70F. Winds from the West at 5 to 10 mph.
Wednesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Thursday
clear Clear. High of 73F. Winds from the West at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Friday
clear Clear. High of 72F. Winds from the WSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 52F. Winds from the West at 5 to 15 mph.
Saturday
clear Clear. High of 70F. Winds from the West at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 50F. Winds from the West at 5 to 15 mph.
Sunday
clear Clear. High of 68F. Winds from the WNW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds from the WNW at 5 to 15 mph.
Monday
clear Clear. High of 68F. Winds from the WNW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 50F. Winds from the West at 5 to 15 mph.
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Forecast

View Calendar 10-Day Forecast for station KCAUNION2

Friday, 25
Thunderstorm
57 | 50 °F
T-storms
Chance of
Precipitation
20%
Saturday, 26
Partly Cloudy
61 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 27
Partly Cloudy
66 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 28
Partly Cloudy
59 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 29
Partly Cloudy
64 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 30
Partly Cloudy
70 | 55 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 31
Clear
73 | 54 °F
Clear
Chance of
Precipitation
0%
Friday, 1
Clear
72 | 52 °F
Clear
Chance of
Precipitation
0%
Saturday, 2
Clear
70 | 50 °F
Clear
Chance of
Precipitation
0%
Sunday, 3
Clear
68 | 50 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 1:14 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 57F. Breezy. Winds from the WNW 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 50F. Winds from the WSW at 5 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 44 55 | 40 56 | 46 54 | 48
Wind 16 mph WNW 23 mph WNW 16 mph West 5 mph SW
Humidity 79% 59% 68% 81%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 56% 66% 74% 35%
Conditions Chance of Rain Thunderstorm Thunderstorm Partly Cloudy
Sunrise & Sunset
5:51 AM
8:19 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.95], Average RMSE [1.72]
The National Weather Service forecast quality is fair. MaxT RMSE [3.03], Average RMSE [1.76] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 61F. Winds from the WSW at 10 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 50F. Winds from the SW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 49 61 | 51 56 | 49 52 | 47
Wind 6 mph SW 10 mph WSW 12 mph West 6 mph SW
Humidity 85% 70% 72% 85%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 52% 29% 39% 58%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:50 AM
8:20 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.64], Average RMSE [1.98]
The National Weather Service forecast quality is fair. MaxT RMSE [3.10], Average RMSE [1.69] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 66F. Winds from the West at 5 to 15 mph.
Sunday Night
nt_partlycloudy Partly cloudy in the evening, then overcast. 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 | 47 63 | 51 60 | 50 55 | 52
Wind 4 mph SW 8 mph West 11 mph West 6 mph West
Humidity 85% 65% 68% 92%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 55% 13% 18% 0%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:20 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.82], Average RMSE [2.13]
The National Weather Service forecast quality is fair. MaxT RMSE [2.88], Average RMSE [1.77] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Monday
partlycloudy Overcast in the morning, then clear. High of 59F. Winds from the West at 5 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy in the evening, then 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 53 | 48 58 | 47 57 | 47 53 | 49
Wind 5 mph West 9 mph West 10 mph West 5 mph West
Humidity 86% 65% 65% 84%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 100% 0% 0% 9%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:21 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.70], Average RMSE [2.19]
The National Weather Service forecast quality is fair. MaxT RMSE [3.04], Average RMSE [2.04] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Tuesday
partlycloudy Overcast in the morning, then clear. High of 64F. Winds from the West at 5 to 10 mph.
Tuesday Night
nt_mostlycloudy Mostly cloudy. Fog overnight. Low of 50F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 47 59 | 45 57 | 44 53 | 49
Wind 4 mph West 6 mph West 9 mph West 4 mph West
Humidity 83% 57% 59% 83%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 85% 1% 0% 87%
Conditions Fog Clear Clear Mostly Cloudy
Sunrise & Sunset
5:49 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.60], Average RMSE [2.40]
The National Weather Service forecast quality is fair. MaxT RMSE [3.48], Average RMSE [2.02] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Wednesday
partlycloudy Clear. High of 70F. Winds from the West at 5 to 10 mph.
Wednesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 50 63 | 49 63 | 48 58 | 53
Wind 3 mph West 6 mph West 8 mph West 4 mph WSW
Humidity 84% 58% 60% 84%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 5% 0% 0% 0%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.59], Average RMSE [2.19]
The National Weather Service forecast quality is poor. MaxT RMSE [4.16], Average RMSE [2.06] : Use NWS
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Thursday
clear Clear. High of 73F. Winds from the West at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 53 69 | 56 68 | 50 59 | 52
Wind 2 mph SW 5 mph WNW 8 mph West 4 mph WSW
Humidity 87% 65% 51% 78%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.58], Average RMSE [2.57]
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Friday
clear Clear. High of 72F. Winds from the WSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 52F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 51 69 | 55 67 | 50 56 | 51
Wind 3 mph SW 6 mph WSW 9 mph WSW 8 mph West
Humidity 80% 63% 57% 84%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 2%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.69], Average RMSE [2.91]
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
clear Clear. High of 70F. Winds from the West at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 50F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 53 65 | 54 64 | 54 53 | 47
Wind 6 mph West 7 mph West 13 mph West 9 mph West
Humidity 86% 65% 70% 81%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 5% 6% 8% 6%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.88], Average RMSE [3.22]
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
clear Clear. High of 68F. Winds from the WNW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds from the WNW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 49 63 | 54 66 | 51 53 | 45
Wind 7 mph West 9 mph WNW 14 mph WNW 9 mph WNW
Humidity 86% 69% 57% 70%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 4% 2% 1% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:22 PM
Source: BestForecast at 1:14 AM PDT on May 25, 2012
Descriptive Forecast
Monday
clear Clear. High of 68F. Winds from the WNW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 50F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 46 64 | 53 66 | 49 53 | 45
Wind 7 mph WNW 8 mph WNW 13 mph WNW 8 mph WNW
Humidity 79% 64% 55% 70%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 1% 1% 1% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:49 AM
8:22 PM
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 25, 2012 Max Temp Min Temp
Normal (KHWD) 68 °F 53 °F
Record (KHWD) 77 °F (2005) 49 °F (2008)
Yesterday 66 °F 50 °F
Yesterday's Heating Degree Days: 7
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
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 53.1 °F
Richmond, CA 57.9 °F
Port Chicago, CA 63.0 °F
Marine Forecast
Astronomy
May. 25, 2012 Rise Set
Actual Time 5:51 AM PDT 8:19 PM PDT
Civil Twilight 5:21 AM PDT 8:49 PM PDT
Nautical Twilight 4:43 AM PDT 9:26 PM PDT
Astronomical Twilight 4:02 AM PDT 10:08 PM PDT
Moon 9:54 AM PDT No Moon Set
Length Of Visible Light 15h 28m
Length of Day
14h 28m
Tomorrow will be 1m 17s 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
Truckee-Tahoe
32 °F
Weaverville
33 °F
Blue Canyon
35 °F
Alturas
35 °F
Mount Shasta
Record Extremes
Snow Depth
Station Depth Elevation
Blue Lakes 0 in 8000 ft
Forestdale Creek 1 in 8029 ft
Ebbetts Pass 0 in 8700 ft
Leavitt Lake 19 in 9400 ft
Burnside Lake 1 in 8139 ft
Snow Depth Reports — Snow Depth Map
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Travel & Activities
Travel Planning
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Nearby Events
Event Date Forecast
Make A Wish Fundraiser at Made Up Theatre! 8:00 PM PDT 2012-05-25 Thunderstorm, 55°F
The 5th Annual Killer Laughs Competition - Semi Final Round #1 7:00 PM PDT 2012-05-25 Thunderstorm, 56°F
Teddy Carpenter 7:00 PM PDT 2012-05-25 Thunderstorm, 56°F
Teddy Carpenter 9:00 PM PDT 2012-05-25 Thunderstorm, 55°F
Pablo Cruise 8:00 PM PDT 2012-05-25 Thunderstorm, 55°F
Dublin Roundtable May Meeting 7:00 AM PDT 2012-05-25 Chance of Rain, 53°F
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
Hayward 51 °F Partly Cloudy 5:54 AM PDT
Palo Alto This station is not reporting.
Moffett NAS 51 °F Light Rain 5:56 AM PDT
San Carlos 50 °F Partly Cloudy 5:50 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 (KHWD)
Wind Speed: 11.0 kts.
Wind Dir: 280° (West)
Ceiling: Unlimited

METAR KHWD 251254Z AUTO 29011G18KT 10SM FEW034 11/06 A2974 RMK AO2 SLP080 T01060061

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
Los Angeles vs. San Jose 7:00 PM PDT on June 30, 2012 Average High 81° F/ 27° C
Real Salt Lake vs. San Jose 7:30 PM PDT on July 14, 2012 Average High 84° F/ 28° 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
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, 74 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Union Landing, Union City, CA 51.0 °F - 45 °F 79% West  at  13.7 mph 0.00 in / hr 10 ft 6:07 AM PDT Rapid Fire
Fairway Park, Hayward, CA 51.3 °F - 47 °F 84% WNW  at  4.1 mph 0.00 in / hr 46 ft 6:07 AM PDT Rapid Fire
Terry's House, Union City, CA 51.6 °F - 45 °F 74% NW  at  5.4 mph 0.00 in / hr 150 ft 6:07 AM PDT Rapid Fire
Niles, Fremont, CA 50.8 °F - 46 °F 83% North  at  4.0 mph 0.00 in / hr 70 ft 6:05 AM PDT Rapid Fire  
Newark Blvd & Cedar Blvd (Newark), Newark, CA 50.7 °F - 45 °F 81% WNW  at  11.0 mph 0.00 in / hr 19 ft 6:07 AM PDT Rapid Fire  
Cedar and Thorton, Newark, CA 50.9 °F - 44 °F 77% North  at  9.8 mph 0.00 in / hr 0 ft 6:07 AM PDT Rapid Fire  
Niles, Fremont, CA 51.7 °F - 44 °F 75% SW  at  3.4 mph 0.00 in / hr 80 ft 6:04 AM PDT Normal  
Southgate, Hayward, CA 51.0 °F - 44 °F 76% WNW  at  10.0 mph - / hr 19 ft 6:07 AM PDT Normal  
Highland Subdivision, next to CSUH, Hayward, CA 48.6 °F 49 °F 42 °F 77% SW  at  0.0 mph 0.00 in / hr 480 ft 6:07 AM PDT Normal
28 Palms, Fremont, CA 50.3 °F - 45 °F 81% North  at  8.0 mph 0.00 in / hr 54 ft 5:59 AM PDT Normal  
Hayward, Hayward, CA 65.5 °F - 65 °F 49% East  at  0.0 mph 0.00 in / hr 13 ft 5:53 AM PDT Normal  
Sundale, Fremont, CA 50.2 °F - 44 °F 80% WNW  at  6.0 mph 0.00 in / hr 46 ft 6:07 AM PDT Rapid Fire  
NW Hayward, Hayward, CA 50.2 °F - 44 °F 80% WSW  at  0.0 mph 0.00 in / hr 69 ft 5:53 AM PDT Normal  
San Lorenzo, CA 52.0 °F - 46 °F 80% WNW  at  2.0 mph 0.00 in / hr 100 ft 6:00 AM PDT Normal  
Mission Hollow, Fremont, CA 49.0 °F 49 °F 44 °F 82% North  at  0.0 mph 0.00 in / hr 301 ft 6:07 AM PDT Rapid Fire  
Northwest of Eden Hospital, Castro Valley, CA 48.8 °F 49 °F 39 °F 69% South  at  0.0 mph 0.00 in / hr 180 ft 6:07 AM PDT Rapid Fire  
Agualinda Pool, Castro Valley, CA 49.8 °F 48 °F 23 °F 35% NW  at  5.0 mph 0.00 in / hr 278 ft 6:05 AM PDT Normal
Palomares Hills, Castro Valley, CA 46.8 °F 47 °F 32 °F 56% SW  at  0.0 mph 0.00 in / hr 803 ft 6:06 AM PDT Normal  
Schaefer Ranch, Dublin, CA 45.3 °F 43 °F 36 °F 71% WSW  at  4.0 mph - / hr 920 ft 6:07 AM PDT Rapid Fire  
Castro Valley, Castro Valley, CA 47.8 °F 48 °F 40 °F 74% ENE  at  1.6 mph 0.00 in / hr 0 ft 6:07 AM PDT Normal
Foothill High School, Pleasanton, CA 49.1 °F 46 °F 46 °F 90% West  at  7.0 mph 0.00 in / hr 367 ft 6:05 AM PDT Normal  
MesoWest Chabot , Castro Valley, CA 48 °F 43 °F - - West  at  11 mph 0.00 in / hr 170 ft 5:00 AM PDT MADIS
Glenwood Estates, Fremont, CA 49.2 °F 49 °F 43 °F 78% SSE  at  0.0 mph 0.00 in / hr 212 ft 6:07 AM PDT Rapid Fire  
Pleasanton Foothills, Pleasanton, CA 49.5 °F 50 °F 41 °F 72% WSW  at  0.9 mph 0.00 in / hr 341 ft 6:07 AM PDT Rapid Fire  
Palo Alto Park, East Palo Alto, CA 50.7 °F - 43 °F 76% East  at  3.1 mph 0.00 in / hr 20 ft 6:07 AM PDT Rapid Fire  
Mission Hills Park, Pleasanton, CA 49.5 °F 50 °F 43 °F 77% SW  at  2.2 mph 0.00 in / hr 348 ft 6:07 AM PDT Rapid Fire  
MesoWest Pleasanton , Pleasanton, CA 50 °F 46 °F - - West  at  10 mph 0.00 in / hr 99 ft 5:00 AM PDT MADIS
Pleasanton Valley, Pleasanton, CA 49.7 °F 50 °F 41 °F 72% SSW  at  0.0 mph 0.00 in / hr 344 ft 6:07 AM PDT Rapid Fire  
Evil Weather Control Device, Fremont, CA 50.8 °F - 44 °F 79% NW  at  0.4 mph 0.00 in / hr 170 ft 6:07 AM PDT Rapid Fire  
Sports Park - Bird Land, Pleasanton, CA 46.9 °F 47 °F 37 °F 68% WSW  at  0.0 mph 0.00 in / hr 310 ft 6:06 AM PDT Normal  
Warm Springs, Fremont, CA 50.4 °F - 45 °F 81% NW  at  5.0 mph 0.00 in / hr 60 ft 5:58 AM PDT Normal  
Parkside/Creekside, Pleasanton, CA 49.3 °F 49 °F 39 °F 67% West  at  1.1 mph 0.00 in / hr 370 ft 6:07 AM PDT Rapid Fire  
Stratford Bay, Redwood City, CA 51.2 °F - 46 °F 83% West  at  15.0 mph 0.00 in / hr -10 ft 6:07 AM PDT Rapid Fire  
Hayward Hills, sagehouse, Hayward, CA 46.1 °F 43 °F 42 °F 86% NW  at  7.0 mph 0.00 in / hr 1020 ft 6:06 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