* WHAT...Up to 1.6 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways.

* WHERE...Bayshore locations along the San Francisco Bay, San Pablo Bay, and Monterey Bay.

* WHEN...From 5 PM Friday to 2 AM PDT Thursday.

* IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected.

* ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be 1.0 ft above normal (6.84 ft MLLW) at 6:55 PM Friday 8/7, 1.4 ft above normal (7.25 ft MLLW) at 8:00 PM Saturday 8/8, 1.6 ft above normal (7.44 ft MLLW) at 9:02 PM Sunday 8/9, 1.6 ft above normal (7.46 ft MLLW) at 10:01 PM Monday 8/10, 1.6 ft above normal (7.44 ft MLLW) at 10:57 PM Tuesday 8/11, and 1.3 ft above normal (7.14 ft MLLW) at 11:49 PM Wednesday 8/12. These predictions include both astronomical tides and roughly 3-6 inches of additional water mainly from a combination of thermal expansion and accumulated sea level rise since the tidal datum was established (1983-2001). High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.

* WHAT...Daytime temperatures into the mid 90 and low 100s. Nighttime lows in the mid 60s to mid 70s.

* WHERE...The Santa Clara Valley and Eastern Hills, The East Bay Hills and Valleys, Western Sonoma County Hills, The Santa Cruz Mountains, Interior Monterey County and the Santa Lucia Range, Most of San Benito County and the Cholame Hills in Southeast Monterey County, and North Bay Interior Mountains.

* WHEN...From 10 AM Saturday to 10 PM PDT Sunday.

* IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries.

* ADDITIONAL DETAILS...The hottest locations will be across the far interior.