Diamond Bar, CA

3:37 AM PDT on May 21, 2013 (GMT -0700)
Elev: 997 ft
Lon: 117.8° W
Lat: 34.0° N
Source
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Global: Violent tornado devastates Moore, Oklahoma
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Weather Summary
Kari Kiefer
Weather Underground Forecast for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather is expected to fire up again across the nation's mid-section again on Tuesday.

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
Weather Underground Forecast for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather is expected to fire up again across the nation's mid-section again on Tuesday.

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
More News Articles

Diamond Bar Weather at a Glance

Updated 2:57 AM PDT
Elevation
1339 ft
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Now
Mostly Cloudy
Mostly Cloudy
Temperature
59 °F
Feels Like 59 °F
Wind(mph)
4
Sunrise / Set
5:45 AM
7:50 PM
Moon
Waxing Gibbous
Tonight
Clear 57 °F
Clear
Tuesday
Clear 86 °F
Clear
Tuesday Night
Partly Cloudy 59 °F
Partly Cloudy
Wednesday
Partly Cloudy 77 | 52 °F
Partly Cloudy
Thursday
Fog 72 | 54 °F
Fog
Friday
Clear 73 | 50 °F
Clear
Today is forecast to be Cooler than yesterday.
Conditions
Pressure
29.92 in
Visibility
4.0 miles
Clouds
Mostly Cloudy 600 ft
Moisture
Humidity
100%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
SPECI KCNO 211029Z AUTO 28006KT 4SM BR BKN006 16/14 A2992 RMK AO2 CIG 005V009
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
59 °F
91,93,89,86,83,77,71,68,66,62,61,59,59
Dew Point
59 °F
Wind
Speed / Dir
4 mph from SW
Wind Gust
8.0 mph
Health
UV
0 out of 16
Pollen
5.10 out of 12
Pollen Forecast
Ozone
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Tuesday
clear Clear. High of 86F. Winds from the SW at 5 to 15 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 59F. Winds from the SW at 5 to 15 mph.
Wednesday
partlycloudy Partly cloudy. Fog early. High of 77F. Winds from the SSW at 10 to 15 mph.
Wednesday Night
nt_mostlycloudy Overcast. Fog overnight. Low of 52F. Winds from the South at 5 to 15 mph.
Thursday
partlycloudy Overcast in the morning, then partly cloudy. Fog early. High of 72F. Winds from the SSW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Friday
clear Clear. High of 73F. Winds from the SSW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Saturday
partlycloudy Partly cloudy in the morning, then clear. High of 72F. Winds from the SSW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 48F. Winds less than 5 mph.
Sunday
partlycloudy Partly cloudy. High of 72F. Winds from the SSW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 52F. Winds less than 5 mph.
Monday
partlycloudy Clear. High of 75F. Winds from the SW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Tuesday
clear Clear. High of 73F. Winds from the SSW at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Wednesday
clear Clear. High of 75F. Winds from the WSW at 5 to 15 mph.
Wednesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Thursday
clear Clear. High of 75F. Winds from the West at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Friday
clear Clear. High of 82F. Winds from the West at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
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Weather Forecast for Diamond Bar CA

View Calendar 10-Day Forecast for station KCACHINO3

Tuesday, 21
Clear
86 | 59 °F
Clear
Chance of
Precipitation
0%
Wednesday, 22
Partly Cloudy
77 | 52 °F
Partly Cloudy
Chance of
Precipitation
10%
Thursday, 23
Fog
72 | 54 °F
Fog
Chance of
Precipitation
10%
Friday, 24
Clear
73 | 50 °F
Clear
Chance of
Precipitation
0%
Saturday, 25
Partly Cloudy
72 | 48 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 26
Partly Cloudy
72 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Partly Cloudy
75 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 28
Clear
73 | 54 °F
Clear
Chance of
Precipitation
0%
Wednesday, 29
Clear
75 | 55 °F
Clear
Chance of
Precipitation
0%
Thursday, 30
Clear
75 | 57 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Tuesday
clear Clear. High of 86F. Winds from the SW at 5 to 15 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 59F. Winds from the SW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 54 79 | 53 74 | 53 60 | 53
Wind 2 mph SW 10 mph SW 13 mph SW 8 mph SSW
Humidity 81% 40% 46% 77%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 19% 15% 7% 23%
Conditions Clear Clear Clear Fog
Sunrise & Sunset
5:45 AM
7:50 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.71], Average RMSE [1.44]
The National Weather Service forecast quality is good. MaxT RMSE [2.19], Average RMSE [1.65] : Use NWS
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy. Fog early. High of 77F. Winds from the SSW at 10 to 15 mph.
Wednesday Night
nt_mostlycloudy Overcast. Fog overnight. Low of 52F. Winds from the South at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 53 73 | 54 67 | 53 56 | 52
Wind 4 mph SW 11 mph SW 14 mph SW 9 mph SSW
Humidity 76% 50% 60% 82%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 58% 6% 6% 94%
Conditions Fog Clear Clear Fog
Sunrise & Sunset
5:45 AM
7:51 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.63], Average RMSE [1.61]
The National Weather Service forecast quality is fair. MaxT RMSE [2.59], Average RMSE [1.48] : Use NWS
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Thursday
partlycloudy Overcast in the morning, then partly cloudy. Fog early. High of 72F. Winds from the SSW at 5 to 15 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 | 52 67 | 52 69 | 51 57 | 49
Wind 3 mph East 9 mph SW 10 mph WSW 3 mph SE
Humidity 81% 56% 54% 73%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 94% 7% 7% 0%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:44 AM
7:51 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.73], Average RMSE [1.68]
The National Weather Service forecast quality is fair. MaxT RMSE [2.91], Average RMSE [1.92] : Use NWS
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Friday
clear Clear. High of 73F. Winds from the SSW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 46 68 | 44 67 | 47 56 | 47
Wind 2 mph East 10 mph SSW 8 mph SW 1 mph SSE
Humidity 69% 40% 49% 72%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:44 AM
7:52 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.50], Average RMSE [2.13]
The National Weather Service forecast quality is poor. MaxT RMSE [3.62], Average RMSE [1.99] : Use NWS
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy in the morning, then clear. High of 72F. Winds from the SSW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 48F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 44 68 | 44 68 | 45 53 | 47
Wind 2 mph SE 10 mph SSW 9 mph SW 2 mph SSE
Humidity 64% 40% 44% 79%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 25% 28% 0% 0%
Conditions Clear Partly Cloudy Clear Clear
Sunrise & Sunset
5:43 AM
7:53 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.21], Average RMSE [2.26]
The National Weather Service forecast quality is poor. MaxT RMSE [4.06], Average RMSE [2.25] : Use NWS
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. High of 72F. Winds from the SSW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 52F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 44 66 | 43 69 | 47 54 | 49
Wind 2 mph East 10 mph SW 10 mph SW 4 mph ESE
Humidity 69% 42% 46% 82%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 1% 89% 18% 0%
Conditions Clear Overcast Clear Clear
Sunrise & Sunset
5:43 AM
7:53 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.60], Average RMSE [2.27]
The National Weather Service forecast quality is poor. MaxT RMSE [4.98], Average RMSE [2.43] : Use NWS
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Monday
partlycloudy Clear. High of 75F. Winds from the SW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 46 69 | 47 66 | 51 57 | 52
Wind 2 mph ESE 10 mph SW 10 mph SW 2 mph SE
Humidity 69% 45% 56% 83%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 68% 0% 0% 0%
Conditions Mostly Cloudy Clear Clear Clear
Sunrise & Sunset
5:42 AM
7:54 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.30], Average RMSE [2.33]
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Tuesday
clear Clear. High of 73F. Winds from the SSW at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 48 70 | 48 67 | 51 59 | 50
Wind 2 mph East 10 mph SW 10 mph SW 2 mph SW
Humidity 73% 45% 56% 74%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 5% 4% 1% 2%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:42 AM
7:55 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.04], Average RMSE [2.39]
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Wednesday
clear Clear. High of 75F. Winds from the WSW at 5 to 15 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 56 | 50 68 | 50 70 | 51 60 | 53
Wind 1 mph WNW 4 mph WSW 10 mph WSW 2 mph SW
Humidity 79% 52% 50% 77%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 2% 2% 1% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.47], Average RMSE [2.35]
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Thursday
clear Clear. High of 75F. Winds from the West at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 53 67 | 49 71 | 45 61 | 43
Wind 1 mph North 4 mph WSW 9 mph WSW 2 mph WSW
Humidity 85% 50% 38% 52%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 2% 3% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:56 PM
Source: BestForecast at 1:08 AM PDT on May 21, 2013
Descriptive Forecast
Friday
clear Clear. High of 82F. Winds from the West at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 42 76 | 38 76 | 36 63 | 37
Wind 2 mph North 4 mph West 9 mph WSW 1 mph WSW
Humidity 49% 25% 24% 38%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 21, 2013 Max Temp Min Temp
Normal (KFUL) 75 °F 59 °F
Record (KFUL) 91 °F (2003) 50 °F (2002)
Yesterday 86 °F 62 °F
Yesterday's Cooling Degree Days: 9
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
Pine Mountain Club, California 100 miles 3.2 3:04 AM PDT
2013-05-16
Aguanga, California 70 miles 2.9 5:30 PM PDT
2013-05-15
Rancho Palos Verdes, California 39 miles 4.0 1:00 PM PDT
2013-05-15
Cabazon, California 60 miles 3.1 9:20 AM PDT
2013-05-15
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Moderate
OZONE
Current Good
OZONE
Tuesday Good
PM10
Tuesday Good
OZONE
Tuesday Good
CO
Tuesday Good
NO2
Coastal Water Temperatures
Place Temperature
Santa Monica Pier 66.9 °F
Los Angeles, CA 64.9 °F
La Jolla, CA 68.0 °F
Marine Forecast
Astronomy
May. 21, 2013 Rise Set
Actual Time 5:45 AM PDT 7:50 PM PDT
Civil Twilight 5:17 AM PDT 8:18 PM PDT
Nautical Twilight 4:43 AM PDT 8:52 PM PDT
Astronomical Twilight 4:06 AM PDT 9:29 PM PDT
Moon 4:18 PM PDT 3:05 AM PDT
Length Of Visible Light 15h 00m
Length of Day
14h 04m
Tomorrow will be 1m 16s longer.
Waxing Gibbous, 82% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
82 °F
Palm Springs
78 °F
Red Bluff
77 °F
Blythe
75 °F
Needles
75 °F
El Centro
33 °F
Big Bear City
33 °F
Truckee-Tahoe
39 °F
South Lake Tahoe
44 °F
Alturas
46 °F
Novato
Record Extremes
Snow Depth
Station Depth Elevation
Leavitt Lake 62 in 9400 ft
Leavitt Meadows 1 in 7200 ft
Sonora Pass 0 in 8800 ft
Summit Meadow 1 in 9122 ft
Poison Flat 0 in 7900 ft
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
La Verne This station is not reporting.
Chino 61 °F Mostly Cloudy 3:29 AM PDT
Fullerton 67 °F Overcast 2:53 AM PDT
Ontario 63 °F Partly Cloudy 2:53 AM PDT
View all Aviation Tools
Flight To ETA Status
FDX1860
Oakland, CA 		KONT 03:59AM On Time
UPS910
Chicago/Rockford, IL 		KONT 04:09AM On Time
FDX1166
Fort Worth, TX 		KONT 04:42AM On Time
UPS918
Louisville, KY 		KONT 04:51AM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: IFR (KCNO)
Wind Speed: 6.0 kts.
Wind Dir: 228° (SW)
Ceiling: 600 ft

SPECI KCNO 211029Z AUTO 28006KT 4SM BR BKN006 16/14 A2992 RMK AO2 CIG 005V009

View all Reports & Maps
Nearby Events
Event Date Forecast
Bullet For My Valentine: The HardDrive Tour 6:00 PM PDT
2013-04-19		 Clear, 75°F
SCCO Spring Admissions Open House 8:00 AM PDT
2013-04-20		 Clear, 66°F
A Day To Remember 6:00 PM PDT
2013-04-21		 Clear, 70°F
Your True Skin Type 7:00 PM PDT
2013-04-22		 Clear, 71°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Tigers vs. Indians 7:05 PM EDT on May 21, 2013 Chance of a Thunderstorm, 79 °F
Yankees vs. Orioles 7:05 PM EDT on May 21, 2013 Chance of a Thunderstorm, 79 °F
Cardinals vs. Dodgers 7:10 PM PDT on May 24, 2013 Overcast, 58 °F
Cardinals vs. Dodgers 4:15 PM PDT on May 25, 2013 Clear, 70 °F
Event Date Forecast
Livorno vs. Brescia 6:30 PM CEST on May 22, 2013 Clear, High 71° F/ 22° C
Empoli vs. Novara 8:45 PM CEST on May 22, 2013 Clear, High 69° F/ 21° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Chance of Rain, 70 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 68 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Partly Cloudy, 68 °F
View all Sports Weather
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Weather Stations
Station Location Temp. Dew Point Humidity Wind Precipitation Elevation Updated Type Website
RAWS TONNER CANYON CA, Brea, CA 59 °F 59 °F 100% SW  at  4 mph 0.00 in / hr 1339 ft 2:57 AM PDT MADIS
Canon Lane Station, Chino Hills, CA 58.4 °F 57 °F 96% West  at  1.0 mph 0.00 in / hr 1166 ft 3:35 AM PDT Normal  
MesoWest MARNE , West Covina, CA 59 °F - - North  at  - 0.00 in / hr 453 ft 1:10 AM PDT MADIS
Village Oaks, Chino Hills, CA 59.9 °F 40 °F 48% West  at  3.1 mph 0.00 in / hr 760 ft 3:37 AM PDT Rapid Fire
Carbon Canyon, Brea, CA 62.7 °F 58 °F 86% South  at  1.0 mph 0.00 in / hr 482 ft 3:36 AM PDT Normal  
Pomona Historic Lincoln Park, Pomona, CA 61.5 °F 58 °F 88% SW  at  0.0 mph 0.00 in / hr 911 ft 3:36 AM PDT Rapid Fire  
Brea, CA 63.5 °F 53 °F 68% SSW  at  0.0 mph 0.00 in / hr 550 ft 3:35 AM PDT Normal  
Los Serranos Ranch, Chino Hills, CA 63.5 °F 50 °F 61% SSW  at  4.0 mph 0.00 in / hr 840 ft 3:36 AM PDT Normal
Central Chino, Chino, CA 61.0 °F 58 °F 91% West  at  2.0 mph 0.00 in / hr 750 ft 3:36 AM PDT Rapid Fire  
Gingerwood Community, Fullerton, CA 65.1 °F 58 °F 79% West  at  3.1 mph 0.00 in / hr 362 ft 3:31 AM PDT Normal  
MesoWest RAMONA , Montclair, CA 62 °F - - North  at  - 0.00 in / hr 916 ft 2:35 AM PDT MADIS
Enclos Corp., Chino, CA 61.2 °F 58 °F 89% SW  at  4.0 mph 0.00 in / hr 612 ft 3:36 AM PDT Normal  
La Verne (Eastside), La Verne, CA 61.3 °F 58 °F 90% West  at  0.0 mph - / hr 1050 ft 3:28 AM PDT Normal  
Chino Hills (Near Alterra Park), Chino Hills, CA 58.3 °F 56 °F 93% SW  at  0.0 mph 0.00 in / hr 810 ft 3:36 AM PDT Rapid Fire
Jones Place, Placentia, CA 63.7 °F 59 °F 84% South  at  0.0 mph 0.00 in / hr 341 ft 3:37 AM PDT Rapid Fire  
Imperial Hwy/YL Blvd, YORBA LINDA, CA 62.7 °F 59 °F 88% SSW  at  0.0 mph 0.00 in / hr 370 ft 3:30 AM PDT Normal  
APRSWXNET Yorba Linda CA , Yorba Linda, CA 62 °F 59 °F 89% West  at  0 mph 0.00 in / hr 532 ft 3:07 AM PDT MADIS
BTW 60 and 10 Freeway, La Puente, CA 62.7 °F 58 °F 84% South  at  0.0 mph - / hr 350 ft 3:31 AM PDT Normal
South Glendora, Glendora, CA 63.1 °F 59 °F 86% WNW  at  0.0 mph 0.00 in / hr 750 ft 3:37 AM PDT Rapid Fire
Yorba Linda Blvd., Placentia, CA 63.3 °F 59 °F 87% WSW  at  0.0 mph - / hr 308 ft 3:32 AM PDT Normal  
Geneva, Claremont, CA 60.9 °F 59 °F 92% West  at  0.0 mph 0.00 in / hr 1043 ft 3:30 AM PDT Normal  
Bonita High School, La Verne, CA 61.1 °F 58 °F 90% SW  at  0.0 mph 0.00 in / hr 1049 ft 3:36 AM PDT Rapid Fire  
Yorba Linda, CA 62.2 °F 56 °F 80% SW  at  0.0 mph 0.00 in / hr 456 ft 3:37 AM PDT Rapid Fire  
North Central Chino, Chino, CA 60.9 °F 55 °F 82% West  at  2.0 mph 0.00 in / hr 732 ft 3:36 AM PDT Rapid Fire  
APRSWXNET Fullerton CA , Fullerton, CA 63 °F 60 °F 89% SSW  at  0 mph 0.00 in / hr 213 ft 3:19 AM PDT MADIS
Nick's Weather Station, Covina, CA 63.2 °F 58 °F 83% NNW  at  0.0 mph 0.00 in / hr 436 ft 3:37 AM PDT Rapid Fire  
N/E Chino, Chino, CA 60.3 °F 60 °F 99% WSW  at  3.2 mph - / hr 823 ft 3:22 AM PDT Normal  
SW Yorba Linda/NW Anaheim Hills, Yorba Linda, CA 62.6 °F 58 °F 84% East  at  0.0 mph 0.00 in / hr 278 ft 3:37 AM PDT Rapid Fire  
La Verne, CA 59.2 °F 49 °F 68% WSW  at  0.0 mph 0.00 in / hr 1200 ft 3:36 AM PDT Rapid Fire
MesoWest Fullerton CSU , Fullerton, CA 63 °F 59 °F 87% North  at  0 mph 0.00 in / hr 240 ft 2:50 AM PDT MADIS
La Habra Heights, La Habra Heights, CA 60.8 °F 58 °F 92% NNE  at  0.0 mph 0.00 in / hr 600 ft 3:36 AM PDT Rapid Fire  
Historic District, Glendora, CA 67.6 °F 41 °F 36% NW  at  0.0 mph 0.00 in / hr 768 ft 3:36 AM PDT Rapid Fire  
Bryant Ranch - 91/241 Fwy, Yorba Linda, CA 62.1 °F 57 °F 83% WSW  at  0.0 mph - / hr 464 ft 3:34 AM PDT Normal  
Cullen Elementary School, Glendora, CA 57.4 °F 55 °F 91% NW  at  0.0 mph 0.00 in / hr 878 ft 3:36 AM PDT Rapid Fire
La Palma/Old Village, Yorba Linda, CA 62.2 °F 61 °F 95% SSW  at  3.2 mph - / hr 371 ft 3:35 AM PDT Normal  
Yorba Linda (Bryant Ranch), Yorba Linda, CA 62.1 °F 58 °F 86% WSW  at  0.0 mph 0.00 in / hr 444 ft 3:37 AM PDT Normal  
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