Author: John Hibler

February 26, 2021 Summary:  Low pressure is once again racing into the Great Basin this afternoon and has made it as far south as northern Nevada and northern Utah.  A vast expanse of upper level high pressure covers the eastern Pacific Ocean and will build northeastward into western Canada and the Pacific Northwest.  The low…

February 26, 2021 Disturbances continue to race from northwest to southeast through the Pacific Northwest and then into the Great Basin around the eastern rim of upper level  high pressure over the eastern Pacific.  Yet another one of these features is racing through the Pacific Northwest now and will drive into the Great Basin this…

February 25, 2021 Summary:  The strong Santa Ana wind event of the past 24 hours has mixed down a cooler and drier air mass to the valley floor.  Temperatures are averaging 5 to 7 degrees cooler than yesterday at this time while dew points are as much as 10 to 15 degrees off of what…

February 25, 2021 The latest weather system to race around the eastern rim of upper level high pressure off shore is currently entering the Pacific Northwest.  The strong Santa Ana wind configuration of higher pressure over the Great Basin than off shore will last another few hours then will begin to wane.  Currently, winds near…

February 24, 2021 Summary:  A dry fast  moving low pressure system is currently moving through Nevada and Utah.  Pressure is falling rapidly over southern Nevada and the Desert Southwest while just the opposite is occurring over Oregon and Idaho where steep rises have been noted.  The current pressure at Boise, Idaho is 30.42 inches of…

February 24, 2021 The pattern we’ve been under for the past several days will continue.  Upper level high pressure remains parked over the eastern Pacific while weak disturbances race around the eastern rim of the high through the Pacific Northwest then into the Great Basin.  One such disturbance is moving into northern Nevada and Utah…

February 23, 2021 Summary: Upper level high pressure continues to reside over the eastern Pacific Ocean with the northern rim of the high reaching into Alaska.  Waves of low pressure slide down the eastern side of the high through the Pacific Northwest and into the Great Basin.  One such disturbance is moving through Washington and…

February 23, 2021 The current pattern of high pressure aloft over the eastern Pacific and storms riding over the top of the high then southeastward through the Pacific Northwest and finally into the Great Basin continues this morning.  one such system is diving into Idaho and northern Utah at this hour.  Behind this system, surface…

February 22, 2021 Summary: Temperatures as of 1:00pm were generally in the mid to upper 60s so a number of locations will eclipse the 70 degree mark today.  The surface flow remains off shore.  The current barometric pressure at Salt Lake City is 30.47 inches of mercury while at LAX the current reading is 30.15. …

February 22, 2021 Today begins what will be a stellar weather week.  A zone of upper level high pressure now covers the eastern Pacific Ocean, across California and into the Desert Southwest.  The air aloft continues to warm.  The freezing level above both Vandenberg AFB and Oakland is now north of 12,000 feet.  This, combined…