Heat Coming
Heat will be the big story this holiday week. A massive ridge of high pressure will build in from the west through mid-week and then settle in over the area for a few days. The strong ridge will have hot temperatures aloft, coupled with compressional warming from it being directly overhead, and suppression of the marine layer & sea breeze. This is all a recipe for hot temperatures, especially inland where widespread 90s to 100s can expected with some potential for the exceedance of 110ºF in some of the typical hot spots The coast won’t see extreme heat, but it will be quite warm. Flow will remain onshore, but it will be light, so while the immediate coast may stall temperate, it will warm quickly as you head away from the beach or up in elevation. It’s worth noting that coastal temperatures will initially cool down a bit on Monday as the stronger northwest flow eases and allows for a more stable marine layer. Inland areas will continue warming, however, then all areas will warm into Tuesday.
AIR QUALITY: Good
Overnight: Low clouds for the coast and patchy fog possible in nearby valleys. Expect coastal lows from 50ºF to mid 50s with low to upper 50s for inland valleys and 60s up in the hills.
Monday: Becoming partly cloudy on the coast with a few low clouds lingering on the south side of the bay and highs ranging from low 60s to upper 70s—warmest on the north side of the bay. Sunny and warmer inland with highs in the low 80s to around 103ºF. Breezy west-northwesterly onshore winds at the coast, becoming windy up-valleys late in the day.
Tuesday: Sunny and much warmer with coastal highs in the 70s-80s and 90s to around 110ºF inland. Breezy up valley winds late in the day.
***EXCESSIVE HEAT WARNING***
… for the mountains and higher elevation valleys (above 250ft) of Monterey County, the mountains and higher elevations valleys (above 500ft) of San Benito County, the Santa Cruz Mountains, and the KION coverage area in Santa Clara County in effect from 11AM Tuesday extended until 8PM Saturday
*Dangerously hot conditions with temperatures in the upper 90's to 110F expected. Limited overnight relief with low temperatures in the mid 60s to low 80s. Resultant widespread Major HeatRisk, with areas of Extreme HeatRisk.
*Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. Without effective cooling and/or adequate hydration, heat-related illnesses including heat stroke will be a risk to everyone. Overnight lows will warm as well leading to poor relief from the heat specifically in elevated terrain and interior areas.
Drink plenty of fluids, stay cool, stay out of the sun, and check up on relatives and neighbors.
Beat the heat and check the backseat! Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you see symptoms of heat
exhaustion and/or heat stroke.
To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
**HEAT ADVISORY**
…for the lower elevations of Santa Cruz County and for the lower elevation inland valleys of Monterey & San Benito Counties in effect from 11AM Tuesday extended until 8PM Saturday
*Temperatures in the 80s to mid 90s
*Hot temperatures may cause heat illnesses to occur.
*.Those sensitive to heat, such as the homeless, elderly, children, and pets will be at risk for heat-related illnesses. Those without effective cooling and/or adequate hydration will be at the greatest risk.
Drink plenty of fluids, stay cool, stay out of the sun, and check up on relatives and neighbors.
Beat the heat and check the backseat! Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you see symptoms of heat
exhaustion and/or heat stroke.
To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency!
Call 9 1 1.
Extended: Coastal temperatures will remain around 10ºF above normal through the end of the week with some fog possible at times. Inland areas will remain hot—highs 12-18ºF above normal. Some coastal cooling expected this coming weekend, but highs will remain above normal.
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This week's normal temperatures:
--COASTAL CITIES--
LOW: 53ºF
HIGH: 68ºF
--INLAND CITIES--
LOW: 51ºF
HIGH: 84ºF
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-The outlook from the Climate Prediction Center for July 8th – 14th calls for the likelihood of ABOVE normal temperatures and near normal* precipitation.
*Note: little to no precipitation typically falls this time of year
- ENSO (El Niño/La Niña) STATUS: La Niña Watch
- ENSO Forecast: Transition to La Niña by late summer.
- Area drought status: Currently drought-free
- Monterey Bay Sea Surface Temperature* as of July 1st : 54.9ºF
(Historic June AVG: 58.4ºF) -- *average of three buoys
