A cold storm out of the Gulf of Alaska will generate three to five hours of steady rain in Pasadena starting late this afternoon before clearing out, setting the stage for a sunny Friday, followed by a mostly cloudy weekend, forecasters said early Thursday.
Pasadena’s high is likely to be only 59 degrees, falling to a wet 45 overnight.
Between a quarter-inch and three-quarters of an inch of rain are expected in Pasadena. The chance of rainfall increases to 100 percent by midnight.
Temperatures will rise up to five degrees Friday amid sunny skies and up to six more Saturday under mostly cloudy skies.
The storm’s greatest impact may be in the San Gabriel Mountains, where a winter weather advisory denoting high winds and tough driving conditions will be in force from 1 p.m. today until 1 p.m. Friday amid a falling snow level and furious winds, they said.
The snow level will fall to between 4,500 and 5,500 feet during daytime hours, then to between 3,500 and 4,500 feet by late tonight, the NWS said.
Here is the outlook:
Today: Patchy drizzle before 10am, then rain, mainly after 4pm. High near 59. South southeast wind around 5 mph. Chance of precipitation is 80%.
Tonight: Rain before 10pm, then showers likely after 10pm. Low around 45. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.
Friday: Mostly sunny, with a high near 64. Calm wind becoming south around 5 mph.
Friday Night: Partly cloudy, with a low around 45. South wind around 5 mph becoming north in the evening.
Saturday: Partly sunny, with a high near 70. North northeast wind 5 to 10 mph.
Saturday Night: Mostly cloudy, with a low around 48.
Sunday: Partly sunny, with a high near 74.
Sunday Night: Mostly cloudy, with a low around 51.
M.L.King Day: Mostly cloudy, with a high near 72.
Monday Night: A slight chance of showers. Mostly cloudy, with a low around 51.
Tuesday: A slight chance of showers. Mostly sunny, with a high near 69.
Tuesday Night: Partly cloudy, with a low around 49.
Wednesday: Mostly sunny, with a high near 69.