San Dimas, CA

6:57 AM PST on February 13, 2012 (GMT -0800)
Elev: 896 ft
Lon: 117.8° W
Lat: 34.1° N
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Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Weather Underground Forecast for Monday, February 13, 2012.

The trough of low pressure that brought unsettled weather to the West on Sunday will advance into the Plains on Monday with more mixed precipitation. The trough will support a low and associated warm front moving eastward into the Southern Plains. As the system progresses, rain showers with periods of heavy rain and isolated thunderstorms will spread from parts of central/eastern Texas into western Louisiana, mixed precipitation will develop in parts of Oklahoma and Arkansas, and snow will blanket parts of the Central Plains, Mid-Mississippi Valley, and parts of the western Ohio Valley. Areas from eastern Texas through Arkansas should expect the heaviest precipitation totals. Heightened winter weather conditions will allow Winter Weather Advisories and a few Winter Storm Warnings to remain in effect through the day. Elsewhere east of the Continental Divide, lake-effect snow showers will continue along parts of the Lower Great Lakes Snowbelt.

In the West, a Pacific cold front pushing across the Pacific Northwest will drop southward across northern California, bringing coastal and valley rain and significant snowfall to the Sierra Nevadas.
Weather Underground Forecast for Monday, February 13, 2012.

The trough of low pressure that brought unsettled weather to the West on Sunday will advance into the Plains on Monday with more mixed precipitation. The trough will support a low and associated warm front moving eastward into the Southern Plains. As the system progresses, rain showers with periods of heavy rain and isolated thunderstorms will spread from parts of central/eastern Texas into western Louisiana, mixed precipitation will develop in parts of Oklahoma and Arkansas, and snow will blanket parts of the Central Plains, Mid-Mississippi Valley, and parts of the western Ohio Valley. Areas from eastern Texas through Arkansas should expect the heaviest precipitation totals. Heightened winter weather conditions will allow Winter Weather Advisories and a few Winter Storm Warnings to remain in effect through the day. Elsewhere east of the Continental Divide, lake-effect snow showers will continue along parts of the Lower Great Lakes Snowbelt.

In the West, a Pacific cold front pushing across the Pacific Northwest will drop southward across northern California, bringing coastal and valley rain and significant snowfall to the Sierra Nevadas.
San Dimas Weather at a Glance
Updated 6:57 AM PST
Weather Station - report
Elevation
750 ft
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Now
Overcast
Overcast
Temperature
52.0 °F
Feels Like 52.0 °F
Wind(mph)
0.0
Sunrise / Set
6:38 AM
5:32 PM
Moon
Waning Gibbous
Today
Rain Showers 54 °F
Rain Showers
60% chance of precipitation
Tonight
Chance of Rain 45 °F
Chance of Rain
40% chance of precipitation
Tomorrow
Partly Cloudy 58 | 40 °F
Partly Cloudy
Wednesday
Chance of Rain 58 | 40 °F
Chance of Rain
50% chance of precipitation
Thursday
Partly Cloudy 68 | 40 °F
Partly Cloudy
Friday
Clear 68 | 45 °F
Clear
Today is forecast to be Cooler than yesterday.
Conditions
Pressure
29.95 in
Visibility
10.0 miles
Clouds
Few 1500 ft
Mostly Cloudy 2300 ft
Overcast 3700 ft
Moisture
Humidity
84%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
SPECI KONT 131434Z 26005KT 10SM FEW015 BKN023 OVC037 11/07 A3000 RMK AO2 DZE11 P0000
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Weather Radio
Temperature
Temperature
52.0 °F
Dew Point
47 °F
Wind
Speed / Dir
Calm
Wind Gust
0.0 mph
Health
UV
0 out of 16
Pollen
7.30 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Widespread
View Flu Map
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Regional Forecast for Los Angeles County San Gabriel Valley
Today
rain A chance of showers in the morning...then showers likely in the afternoon. Highs in the mid 50s to lower 60s. Southwest winds around 15 mph in the afternoon. Chance of precipitation 60 percent.
Tonight
nt_cloudy Mostly cloudy. A chance of showers in the evening...then a slight chance of showers after midnight. Lows in the lower to mid 40s. West winds around 15 mph in the evening. Chance of precipitation 40 percent.
Tuesday
partlycloudy Partly cloudy. Highs near 60.
Tuesday Night
nt_partlycloudy Partly cloudy. Lows near 40.
Wednesday
cloudy Mostly cloudy. A slight chance of showers in the morning...then a chance of showers in the afternoon. Highs in the mid 50s to lower 60s. Chance of precipitation 50 percent.
Wednesday Night
nt_cloudy Mostly cloudy. A chance of showers in the evening...then a slight chance of showers after midnight. Lows near 40. Chance of precipitation 50 percent.
Thursday
partlycloudy Partly cloudy. Breezy. Highs in the mid 60s to lower 70s.
Thursday Night and Friday
nt_sunny Mostly clear. Lows near 40. Highs in the mid 60s to lower 70s.
Friday Night
nt_sunny Mostly clear. Lows in the 40s.
Saturday and Saturday Night
nt_partlycloudy Partly cloudy. Highs in the 60s. Lows in the 40s.
Sunday
partlycloudy Partly cloudy with a 20 percent chance of showers. Highs near 60.
Source: NWS at 3:30 am PST on February 13, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 91773
Monday, 13
Rain Showers
54 | 45 °F
Rain Showers
Chance of
Precipitation
60%
Tuesday, 14
Partly Cloudy
58 | 40 °F
Partly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Chance of Rain
58 | 40 °F
Chance of Rain
Chance of
Precipitation
50%
Thursday, 16
Partly Cloudy
68 | 40 °F
Partly Cloudy
Chance of
Precipitation
0%
Friday, 17
Clear
68 | 45 °F
Clear
Chance of
Precipitation
0%
Saturday, 18
Partly Cloudy
65 | 47 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 19
Chance of Rain
58 | NA
Chance of Rain
Chance of
Precipitation
20%
Source: NWS at 3:30 am PST on February 13, 2012
Regional Forecast for Los Angeles County San Gabriel Valley
Today
rain A chance of showers in the morning...then showers likely in the afternoon. Highs in the mid 50s to lower 60s. Southwest winds around 15 mph in the afternoon. Chance of precipitation 60 percent.
Tonight
nt_cloudy Mostly cloudy. A chance of showers in the evening...then a slight chance of showers after midnight. Lows in the lower to mid 40s. West winds around 15 mph in the evening. Chance of precipitation 40 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 40 53 | 41 51 | 41 46 | 39
Wind 0 mph SW 8 mph SSW 8 mph WSW 2 mph NW
Humidity 72% 62% 69% 76%
Chance of Precip. 10% 60% 60% 40%
Cloud Cover 76% 95% 55% 55%
Conditions Chance of Rain Rain Showers Chance of Rain Partly Cloudy
Sunrise & Sunset
6:38 AM
5:32 PM
Source: NWS at 3:30 am PST on February 13, 2012
Regional Forecast for Los Angeles County San Gabriel Valley
Tuesday
partlycloudy Partly cloudy. Highs near 60.
Tuesday Night
nt_partlycloudy Partly cloudy. Lows near 40.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 37 56 | 41 50 | 43 42 | 40
Wind 6 mph North 4 mph SW 2 mph SW 1 mph ENE
Humidity 77% 58% 76% 92%
Chance of Precip. 40% 10% 10% 10%
Cloud Cover 40% 40% 25% 35%
Conditions Partly Cloudy Partly Cloudy Clear Partly Cloudy
Sunrise & Sunset
6:37 AM
5:33 PM
Source: NWS at 3:30 am PST on February 13, 2012
Regional Forecast for Los Angeles County San Gabriel Valley
Wednesday
cloudy Mostly cloudy. A slight chance of showers in the morning...then a chance of showers in the afternoon. Highs in the mid 50s to lower 60s. Chance of precipitation 50 percent.
Wednesday Night
nt_cloudy Mostly cloudy. A chance of showers in the evening...then a slight chance of showers after midnight. Lows near 40. Chance of precipitation 50 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 40 | 39 54 | 42 52 | 42 42 | 39
Wind 1 mph NNW 6 mph WSW 6 mph WSW 7 mph NE
Humidity 97% 63% 71% 92%
Chance of Precip. 10% 50% 50% 50%
Cloud Cover 55% 65% 56% 52%
Conditions Chance of Rain Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
6:36 AM
5:34 PM
Source: NWS at 3:30 am PST on February 13, 2012
Regional Forecast for Los Angeles County San Gabriel Valley
Thursday
partlycloudy Partly cloudy. Breezy. Highs in the mid 60s to lower 70s.
Thursday Night and Friday
nt_sunny Mostly clear. Lows near 40. Highs in the mid 60s to lower 70s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 39 60 | 41 60 | 43 43 | 41
Wind 10 mph NNE 10 mph NNE 3 mph NNE 7 mph NNE
Humidity 80% 51% 59% 92%
Chance of Precip. 50% 10% 10% 10%
Cloud Cover 35% 35% 15% 15%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
6:35 AM
5:35 PM
Source: NWS at 3:30 am PST on February 13, 2012
Regional Forecast for Los Angeles County San Gabriel Valley
Thursday Night and Friday
nt_sunny Mostly clear. Lows near 40. Highs in the mid 60s to lower 70s.
Friday Night
nt_sunny Mostly clear. Lows in the 40s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 39 60 | 40 61 | 41 48 | 41
Wind 6 mph NNE 3 mph ENE 4 mph WSW 0 mph ENE
Humidity 79% 48% 52% 78%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 15% 15% 20% 20%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
6:34 AM
5:36 PM
Source: NWS at 3:30 am PST on February 13, 2012
Regional Forecast for Los Angeles County San Gabriel Valley
Saturday and Saturday Night
nt_partlycloudy Partly cloudy. Highs in the 60s. Lows in the 40s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 39 58 | 40 58 | 41 48 | 41
Wind 1 mph ENE 3 mph South 5 mph SW 2 mph ESE
Humidity 68% 49% 54% 75%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 30% 30% 30% 30%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:34 AM
5:36 PM
Source: NWS at 3:30 am PST on February 13, 2012
Regional Forecast for Los Angeles County San Gabriel Valley
Sunday
partlycloudy Partly cloudy with a 20 percent chance of showers. Highs near 60.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 39 55 | 40 58 | 41 48 | 41
Wind 3 mph South 7 mph WSW 5 mph SW 2 mph ESE
Humidity 67% 57% 54% 75%
Chance of Precip. 10% 20% 10% 10%
Cloud Cover 50% 50% 30% 30%
Conditions Chance of Rain Chance of Rain Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:34 AM
5:36 PM
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Nearby
History & Almanac
February 13, 2012 Max Temp Min Temp
Normal (KONT) 70 °F 47 °F
Record (KONT) 91 °F (1977) 36 °F (1979)
Yesterday 60 °F 49 °F
Yesterday's Heating Degree Days: 10
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Earthquake Activity
City Distance Mag. Time & Date
Coso Junction, CA 125 miles 3.0 12:27 PM PST
2012-02-12
Ocotillo, CA 134 miles 3.0 2:27 AM PST
2012-02-12
Ocotillo, CA 134 miles 2.9 1:36 AM PST
2012-02-12
Minimum magnitude displayed is 2.5.
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
PM10
Yesterday Good
OZONE
Current Good
PM2.5
Current Good
OZONE
Monday Good
PM10
Monday Good
OZONE
Monday Good
CO
Monday Good
NO2
Astronomy
Feb. 13, 2012 Rise Set
Actual Time 6:38 AM PST 5:32 PM PST
Civil Twilight 6:12 AM PST 5:58 PM PST
Nautical Twilight 5:43 AM PST 6:28 PM PST
Astronomical Twilight 5:14 AM PST 6:57 PM PST
Moon No Moon Rise 10:02 AM PST
Length Of Visible Light 11h 45m
Length of Day
10h 54m
Tomorrow will be 1m 56s longer.
Waning Gibbous, 62% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Today's Extremes
State Highs State Lows
59 °F
North Island
59 °F
Thermal
57 °F
Fullerton
57 °F
San Diego
55 °F
Carlsbad
25 °F
Bishop
28 °F
Blue Canyon
28 °F
Alturas
28 °F
Truckee-Tahoe
Source: NWS
Snow Depth
Station Depth Elevation
Leavitt Lake 44 in 9400 ft
Leavitt Meadows 8 in 7200 ft
Sonora Pass 23 in 8800 ft
Lobdell Lake 17 in 9200 ft
Summit Meadow 19 in 9122 ft
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Ice moving through on the Danube river
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Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
La Verne This station is not reporting.
El Monte This station is not reporting.
Ontario 52 °F Overcast 6:34 AM PST
Chino 52 °F Overcast 4:53 AM PST
Flight To ETA Status
SWA2024
Phoenix, AZ
KONT 06:56AM On Time
SWA3062
Oakland, CA
KONT 07:08AM On Time
SWA2771
Sacramento, CA
KONT 07:18AM On Time
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: MVFR (KONT)
Wind Speed: 5.0 kts.
Wind Dir: 246° (WSW)
Ceiling: 2300 ft

SPECI KONT 131434Z 26005KT 10SM FEW015 BKN023 OVC037 11/07 A3000 RMK AO2 DZE11 P0000

Nearby Events
Event Date Forecast
Mother Goose Storytime for Infants & Toddlers 10:00 AM PST 2012-02-13 Rain Showers, 52°F
Regeneron Hosted Student Dinner 6:00 PM PST 2012-02-13 Chance of Rain, 51°F
Regeneron an Uncommon Opportunity 12:00 PM PST 2012-02-13 Rain Showers, 54°F
Time for Tykes Storytime 10:00 AM PST 2012-02-14 Partly Cloudy, 52°F
BINGO 11:00 AM PST 2012-02-14 Partly Cloudy, 54°F
Baby to Preschool Story Time 10:00 AM PST 2012-02-14 Partly Cloudy, 52°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Chance of Rain, 65 °F
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
Northern Trust Open 8:30 AM PST on February 16, 2012 Partly Cloudy, 65 °F
Northern Trust Open 8:30 AM PST on February 17, 2012 Clear, 65 °F
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
South Glendora, Glendora, CA 52.0 °F - 47 °F 84% WSW  at  0.0 mph 0.00 in / hr 750 ft 6:57 AM PST Rapid Fire
La Verne, CA 51.6 °F - 49 °F 92% West  at  0.0 mph 0.00 in / hr 1200 ft 6:57 AM PST Rapid Fire
La Verne (Eastside), La Verne, CA 50.9 °F - 48 °F 88% WSW  at  0.0 mph 0.00 in / hr 1050 ft 6:57 AM PST Normal  
Historic District, Glendora, CA 53.1 °F - 37 °F 52% ENE  at  0.0 mph 0.00 in / hr 768 ft 6:57 AM PST Rapid Fire  
MesoWest Glendora-Laurel , Glendora, CA 50 °F - 50 °F 100% NE  at  1 mph 0.00 in / hr 275 ft 5:00 AM PST MADIS
Cullen Elementary School, Glendora, CA 49.4 °F 49 °F 48 °F 93% WNW  at  0.0 mph 0.01 in / hr 878 ft 6:57 AM PST Rapid Fire
La Verne Heights, La Verne, CA 49.5 °F 50 °F 46 °F 87% WSW  at  0.1 mph 0.00 in / hr 1467 ft 6:55 AM PST Normal  
Pomona Historic Lincoln Park, Pomona, CA 51.5 °F - 48 °F 86% SW  at  0.0 mph 0.00 in / hr 911 ft 6:57 AM PST Rapid Fire  
MesoWest Pomona , Pomona, CA - - - - North  at  0 mph 0.00 in / hr 886 ft 5:00 AM PST MADIS
Geneva, Claremont, CA 50.5 °F - 48 °F 90% WNW  at  0.0 mph 0.00 in / hr 1043 ft 4:25 AM PST Normal  
Mountain Cove Azusa Real Estate, By Dolf in AZUSA, CA 50.8 °F - 47 °F 86% WNW  at  0.0 mph 0.01 in / hr 841 ft 6:57 AM PST Rapid Fire
Claremont (Eagle Grove), Claremont, CA 46.4 °F 46 °F 46 °F 98% WSW  at  0.0 mph - / hr 1256 ft 6:43 AM PST Normal
Nick's Weather Station, Covina, CA 53.0 °F - 47 °F 79% ENE  at  0.0 mph 0.00 in / hr 436 ft 6:57 AM PST Rapid Fire  
MesoWest Azusa , Azusa, CA 53 °F - 53 °F 99% SW  at  2 mph 0.00 in / hr 597 ft 5:00 AM PST MADIS
RAWS CLAREMONT CA, Claremont, CA 46 °F 46 °F 45 °F 97% NW  at  1 mph 0.00 in / hr 1645 ft 5:55 AM PST MADIS
Enclos Corp., Pomona, CA 51.5 °F - 48 °F 86% West  at  2.0 mph 0.00 in / hr 806 ft 6:57 AM PST Normal  
RAWS SANTA FE DAM CA, Duarte, CA 53 °F - 49 °F 86% South  at  1 mph 0.00 in / hr 500 ft 5:57 AM PST MADIS
APRSWXNET Ontario CA, Montclair, CA 49 °F 49 °F 44 °F 84% WNW  at  2 mph 0.00 in / hr 1145 ft 6:22 AM PST MADIS
NE Duarte, Near Rancho Duarte Golf Cours, Duarte, CA 56.7 °F - 52 °F 83% North  at  0.0 mph 0.00 in / hr 587 ft 6:49 AM PST Normal  
MesoWest Industry , West Covina, CA 51 °F - - - North  at  - 0.00 in / hr 450 ft 4:15 AM PST MADIS
BTW 60 and 10 Freeway, La Puente, CA 53.2 °F - 47 °F 78% ENE  at  0.0 mph - / hr 350 ft 6:54 AM PST Normal
Duarte Foothills, Duarte, CA 51.6 °F - 47 °F 84% NW  at  0.0 mph 0.00 in / hr 760 ft 6:57 AM PST Rapid Fire
Looking Glass Estates, Upland, CA 47.7 °F 48 °F 46 °F 92% NW  at  0.0 mph 0.00 in / hr 1774 ft 6:57 AM PST Rapid Fire  
Central Chino, Chino, CA 51.1 °F - 45 °F 79% West  at  0.0 mph 0.00 in / hr 750 ft 6:57 AM PST Rapid Fire  
Village Oaks, Chino Hills, CA 51.4 °F - 48 °F 88% South  at  4.0 mph 0.00 in / hr 760 ft 6:57 AM PST Rapid Fire
North East Monrovia, Monrovia, CA 51.4 °F - 46 °F 82% NE  at  0.0 mph 0.00 in / hr 656 ft 6:57 AM PST Rapid Fire  
Hilltop in Carbon Canyon, Chino Hills, CA 49.6 °F 50 °F 46 °F 89% SE  at  0.0 mph 0.00 in / hr 1166 ft 6:55 AM PST Normal  
APRSWXNET Chino Hills CA , Chino Hills, CA 53 °F - 47 °F 81% SSW  at  0 mph 0.00 in / hr 740 ft 6:33 AM PST MADIS
15th Street and Campus, Upland, CA 49.0 °F 48 °F 47 °F 93% West  at  4.0 mph 0.00 in / hr 1437 ft 6:57 AM PST Rapid Fire  
RAWS TONNER CANYON CA, Brea, CA 47 °F 43 °F 47 °F 99% SSE  at  9 mph 0.00 in / hr 1339 ft 5:57 AM PST MADIS
MesoWest Upland , Upland, CA 46 °F 46 °F 44 °F 94% WNW  at  3 mph 0.00 in / hr 1243 ft 5:00 AM PST MADIS
APRSWXNET Monrovia CA , Monrovia, CA 52 °F - 48 °F 85% SW  at  0 mph 0.00 in / hr 692 ft 6:26 AM PST MADIS
Arrow / Vineyard, Rancho Cucamonga, CA 50.2 °F - 46 °F 86% North  at  0.0 mph 0.00 in / hr 1173 ft 6:57 AM PST Rapid Fire  
Monrovia near Santa Anita Golf Course, Monrovia, CA 53.1 °F - 46 °F 79% NNW  at  0.0 mph 0.00 in / hr 460 ft 6:56 AM PST Normal  
Los Serranos Ranch, Chino Hills, CA 52.7 °F - 41 °F 65% SSW  at  0.0 mph 0.00 in / hr 840 ft 6:57 AM PST Normal
Brea, CA 53.1 °F - 43 °F 68% ESE  at  2.2 mph 0.00 in / hr 550 ft 6:55 AM PST Normal  
23rd and Mountain, Upland, CA 46.0 °F 46 °F 44 °F 92% SW  at  0.0 mph 0.00 in / hr 2000 ft 6:56 AM PST Normal
San Antonio Heights, Upland, CA 46.2 °F 46 °F 44 °F 93% NNW  at  3.0 mph 0.00 in / hr 2000 ft 6:57 AM PST Rapid Fire  
APRSWXNET Rancho Cucamonga CA , Upland, CA 46 °F 46 °F 45 °F 98% WNW  at  2 mph 0.00 in / hr 1959 ft 6:30 AM PST MADIS
RAWS TANBARK CA, La Verne, CA 42 °F 42 °F 42 °F 100% WSW  at  0 mph 0.00 in / hr 2600 ft 6:01 AM PST MADIS
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