Tomorrow is forecast to be nearly the same temperature as today.
Forecast for Catalina Island
Updated: 4:35 PM PDT on May 11, 2008
Tonight
Low clouds and fog. Lows in the upper 40s to mid 50s.
Monday
Low clouds and patchy fog...with only partial afternoon clearing. Highs in the mid 50s to lower 60s. Areas of southwest winds 10 to 20 mph in the afternoon.
... Hot weather on tap by midweek for much of southwestern California...
An upper level high pressure system will build off the central coast by Wednesday... then it will strengthen as the main core of the high becomes anchored over central and northern California Thursday through Friday. Weak to moderate offshore flow will develop by Tuesday morning... helping to warm temperatures to near normal for this time of year. However... with high pressure building over the area and weak offshore flow on Wednesday... temperatures will begin to warm dramatically... especially across inland areas. Temperatures will reach the lower to mid 90s across the interior sections of San Luis Obispo County... the valleys of Los Angeles and Ventura counties... Lower Mountain elevations... and the Antelope Valley.
The hottest days will be Thursday and Friday as temperatures will soar into the mid to upper 90s across most interior sections... with highs between 100 and 105 likely in the hottest locations. Coastal areas can expect highs to range from the 70s right at the beaches... to the lower 90s inland. However... if the offshore flow strengthens a bit m0re than forecast... temperatures could rise into the 90s even near the beaches. Some record high temperatures are likely Thursday and Friday.
During the hot spell... relative humidity levels will likely lower below 10 percent in many valley and mountain locations... as well as the Antelope Valley. This could bring potentially dangerous fire conditions to many portions of southwestern California by Wednesday... with the threat continuing through at least Friday.
At this time... it appears that temperatures will continue to be quite warm on Saturday and Sunday. However... the upper high should weaken a bit... and there will be a quicker return of the seabreeze each afternoon... which should cool at least coastal regions. Inland temperatures will continue to be relatively hot... with highs in the lower to mid 90s in most areas. More significant cooling will likely occur early next week.
People planning outdoor activities later this week into the weekend should take into consideration the very high temperatures and adjust their activities accordingly. Wear loose fitting light weight clothing and drink plenty of water. Take advantage of shade and air conditioning if available.
Never... ever leave children... the elderly or pets in enclosed automobiles... even for the shortest time. Temperatures quickly rise to life-threatening levels... even if the windows are partially opened.
