Jun 30, 2013 7:45 PM by Victoria Johnson
The National Weather Service has issued an excessive heat warning through Tuesday evening for the San Luis Obispo and Santa Barbara mountains and valleys. Afternoon temperatures are expected to range between 102-112 degrees. The heat index value, which is the combination of temperature and relative humidity, will range between 100 and 110 degrees across the mountains, valleys and deserts. Warm temperatures will continue in to the nighttime hours. This extended period of hot conditions will result in an increase of heat related illness which could include heat exhaustion, cramps, or heat stroke in extreme cases. Avoid strenuous activity during the hottest part of the day. Never leave children or pets in a car unattended, even for a short period of time. Temperatures can rise 20 degrees in a 10 minute time period in a vehicle, even with the windows cracked. Hot, dry weather and dry vegetation will increase fire danger. Use caution when participating in outdoor activities that can cause fire ignitions.
Across the coastal waters, gusty gale force winds will develop today and tonight across the outer waters and a long period swell will continue and generate dangerous rip currents near shore.
A gale warning remains in effect until 3 AM Monday from Point Piedras Blancas to Point Sal from 10-60 nautical miles. Winds are expected to range between 20-25 knots, with the potential to gust to 35 knots through this evening. Seas may range between 7-9 feet.
A small craft advisory remains in effect until l 9 pm this evening between Point Piedras Blancas to Point Sal out to 10 nautical miles. Winds will be their strongest this afternoon and evening, gusting up to 25 knots. Seas can be up to 7 feet.
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