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Updated: @  
Summary / Temperature Wind Rain Outlook
mostly clear mostly clear
Currently: 48.9, Max: 75.7, Min: 40.8 48.9°F
Colder 1.6°F than last hour.

Cool

Feels like: 49°F

24-hr difference
0.7°FWarmer 0.7°F than yesterday at this time.
  Today Yesterday
High: 75.7°F
11:34am
77.0°F
11:59am
Low: 40.8°F
6:16am
45.3°F
3:02am
 Calm NNW
0.0
Gust:
0.0 mph
0 Bft - Calm
Today: 8.1 mph 2:47pm
Gust Month: 10.0 mph February 15
Rain Today: 0.00 in
Rain Rate (/hr): 0.000 in
Rain Yesterday: 0.00 in
Storm Rain: 0.00 in
This Month: 0.01 in
Season Total: 2.35 in
1 rain day in February.
Sunday

Sunday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 66. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Patchy Fog
then Mostly
Sunny
Humidity & Barometer Almanac Moon
Humidity: 56 % Increased 3.0% since last hour.
Dew Point: 33.9°F Decreased 0.1°F since last hour.
Barometer: 30.050 inHg Falling 0.01  inHg/hr
3-Hr Trend: Steady
Sunrise: 6:27am
Sunset: 5:35pm
Moonrise: 8:14am
Moonset: 7:27pm
Waxing Crescent
Waxing Crescent, Moon at 2 days in cycle
6%
Illuminated
UV Index Forecast UV Index Forecast
Feb-18-2018
5.0     Medium 
Feb-19-2018
4.5     Medium 
 NWS Forecast - Mission Trails  - Outlook: Tonight & Sunday
Tonight

Tonight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 49. Calm wind.
Mostly Clear
then Patchy
Fog

Lo 49 °F
NWS Mission Trails: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 49. Calm wind.

WXSIM forecast: Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Low 46°. Wind north-northeast around 2 mph in the evening, becoming east-northeast after midnight.

 
Sunday

Sunday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 66. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Patchy Fog
then Mostly
Sunny

Hi 66 °F
NWS Mission Trails: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 66. Light and variable wind becoming southwest 5 to 10 mph in the morning.


WXSIM forecast: Partly cloudy. High 71°. Wind west-southwest around 5 mph in the morning, becoming 10 mph in the afternoon.

GrLevel 3 Radar


Regional Radar Current Fronts
Images courtesy of Weather Underground.

Weather Story

Current National Weather

Current National Weather

Von Kármán Vortex off the southern California coast

Von Kármán Vortex off the southern California coast

A spiral cloud appears just off the southern California coast in this image seen by the Suomi NPP satellite's VIIRS instrument on February 1, 2018. While one might mistake this cloud for a small hurricane, it is actually just a harmless cloud formation known as a von Kármán vortex. Named after Theodore von Kármán, a co-founder of NASA's Jet Propulsion Laboratory, these stratocumulus clouds form when air moving over a relatively flat surface gets diverted by topographic features, such as an island or a mountaintop. In this image, the vortex formed east of San Clemente Island, about 70 miles off the coast of San Diego. When the prevailing wind was forced to move around the elevated surface of the island, the winds changed direction, causing the clouds to rotate into a spiral shape.This image was created by combining three of the high resolution thermal and visible channels from the Suomi NPP satellite's VIIRS sensor (SVI 4,2,1). The combination of these channels enhances the contrast between clouds, water, and land surfaces, with the ocean appearing black in this imagery.

HiRes Image

Courtesy of NOAA Environmental Visualization Laboratory