icn Wind Advisory - San Diego County Mountains California  
 icn Wind Advisory - San Diego County Deserts California  
Regional Radar Regional Infrared Satellite
Radar/Satellite images courtesy of Weather Underground.
 NWS Weather Forecast  -   Tonight's and Friday's Outlook for San Diego, Mission Trails
Tonight

Chance Drizzle
Chance
Drizzle
Lo 57 °F
NWS forecast: A chance of drizzle after 11pm. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57. South wind between 5 and 10 mph.
WXSIM forecast: Mostly clear. Breezy and warm. High 80°. UV index up to 9. Wind southwest around 12 mph, gusting to 20 mph.
Friday

Chance Drizzle
Chance
Drizzle
Hi 69 °F
NWS forecast: A chance of drizzle before 11am. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 69. South wind between 5 and 10 mph.
WXSIM forecast: Clear. Moderate fog in the evening, then moderate to dense fog after midnight. Low 55°. Wind west-southwest around 5 mph in the evening, becoming south after midnight.
NWS Synopsis for San Diego
An approaching low pressure trough will bring strong and gusty westerly winds through and over the mountains...and into the deserts late this afternoon and tonight. The strong onshore flow will deepen the marine layer...and push low clouds...fog and patchy drizzle well inland by friday morning. It will be much cooler friday...then gradual warming through the weekend with a shrinking marine layer and associated clouds as high pressure rebuilds aloft. Dry with temperatures above average early next week...but some cooling is expected after monday as another upper-level trough develops over the area. ...
Trends - Last Hour
Graphic: Temperature Sparkline Graph Graphic: Barometer Sparkline Graph Graphic: Humidity Sparkline Graph
Graphic: Wind Speed Sparkline Graph Graphic: Wind Gust Sparkline Graph Graphic: Rain Sparkline Graph
Current Conditions - Last Update: 17-May-2012 4:05pm - next update at 4:00pm  @ 
Summary / Temperature Wind Rain Air Quality
mostly clear mostly clear

Currently 75.9, Max: 79.7, Min: 57.4 75.9°F
Colder 2.7°F than last hour.

Comfortable
Feels like: 76°F

24-hr difference
-10.1°FColder 10.1°F than yesterday at this time.


  Today Yesterday
High: 79.7°F
2:41pm
86.7°F
3:17pm
Low: 57.4°F
6:55am
50.2°F
5:45am
NWS Records:2 94.0°F
1956
48.0°F
1894
 Wind from N N
0.9
Gust:
6.3
0 Bft - Calm
Today: 16.0 3:45pm
Gust Month:   23.0   May 12
Rain Today: 0.00 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.00 in
Storm Rain: 0.00 in
May: 0.03 in
Season Total:1 10.52 in
2 rain days in May
Current AQI

70


Moderate
Barometer Humidity/Dew Point Moon
Current: 29.816 inHg Falling 0.027 °F/hr
1-Hour Trend: Steady
3-Hour Trend: Falling
High: 30.017  | Low:  29.805
Humidity: 60 % Increased 4% since last hour.
High: 95  | Low:  55
Dew Point: 61.0°F Decreased 0.6°F since last hour.
High: 64.9  | Low:  52.9
Waning Crescent
Waning Crescent, Moon at 26 days in cycle
8%
Illuminated
UV Index Forecast UV Index Forecast
17 May 2012   Very High   10.2   
18 May 2012   Very High   9.6   
19 May 2012   Very High   9.6   
20 May 2012
10.2    Very High 
Heat Index Cooling Degree Days Sun
Current: 75.9°F
Today: 79.7°F  2:41pm
Yesterday: 88.2°F
Last Week: 88.1°F
Record: 133.3°F   08-Mar-2011
Today: 0.2
May: 4.6
2012 to Date: 4.7
Heating Degree Days
2012 to Date: 1104.6
Daylight: Possible hours of Daylight 13:54
00:02 Min
Cloud Height 3 Almanac Station All Time Records Fire Risk
Sunrise: 5:47am
Sunset: 7:41pm
Moonrise: 3:38am
Moonset: 4:58pm
Full Moon: 6 May 2012
Tides (Ft.)4
Thu 17 May
Low Tide: 0229 0.1
High Tide: 0833 3.9
Low Tide: 1351 1.3
High Tide: 2011 5.9    
HIGHS: LOWS:
111.0°F
03-Sep-2007
26.6°F
05-Jan-2007
Record Day
    96.1 F on: Jul 22 2006   45.3F on: Jan 14 2007
Record Nite(6pm-6am)
  79.3F on: Sep 04 2007 32.4F on: Jan 14 2007
Chandler Burning Index
Chandler Burning Index: LOW
Currently:
10.3 at 4:05 PM
1 Rain season: July 1st to June 30th.    2 At Miramar MCAS (KNKX).
3 Above ground at this station.    4 San Diego Harbor.
 NWS Extended Forecast for Mission Trails & Surrounding Communities
Friday
Night

Increasing Clouds
Increasing
Clouds
Lo 56 °F
Saturday

Gradual Clearing
Gradual
Clearing
Hi 72 °F
Saturday
Night

Patchy Fog
Patchy
Fog
Lo 57 °F
Sunday

Patchy Fog
Patchy
Fog
Hi 74 °F
Sunday
Night

Patchy Fog
Patchy
Fog
Lo 56 °F
Monday

Patchy Fog
Patchy
Fog
Hi 75 °F
 WxSim Extended Forecast
Friday

Fog a.m.
Fog a.m.
High: 79°
Friday
night
Fog late
Fog late
Low: 49°
Saturday

Fog a.m.
Fog a.m.
High: 79°
Saturday
night
Fog late
Fog late
Low: 46°
Sunday

Fog a.m.
Fog a.m.
High: 86°
Sunday
night
Fog
Fog
Low: 47°
Version 2.62 - 19-Mar-2009 - Script Modification/Additions by: WebsterWeatherLIVE.com

San Diego Forecast

Current National Weather

Weather History for May 17
 
1987
A summer-like weather pattern continued, with warm temperatures and scattered thunderstorms across much of the nation. A cold front in the north central U.S. produced a sharp contrast in the weather across the state of Minnesota during the afternoon. At the same time Duluth was 50 degrees with rain and fog, Mankato was 95 degrees with sunny skies. (The National Weather Summary)

1990
Thunderstorms developing along a cold front produced severe weather in New York State during the late morning and afternoon. A tornado injured one person at Warren, and wind gusts to 80 mph were reported at Owego. Evening thunderstorms over southwest Texas produced wind gusts to 80 mph at Marfa, along with golf ball size hail which accumulated to a depth of ten inches. Late night thunderstorms over southwest Texas proudced up to seven inches of rain in western Crockett County. (The National Weather Summary) (Storm Data)

 

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