Category: Forecast

 July 15, 2019 Summary: Even though it will be hot today, with most locations around the century mark, it will not be as hot as we observed over the weekend.  Upper level high pressure is currently centered near the Arizona/New Mexico border, but is flattening out over its northwest flank due to a weak trough…

 July 13, 2019 Summary: Most ag locations this morning are starting out the day in the pleasant low to mid 60s.  That will change in a hurry as we find ourselves on the northwestern flank of  upper level high pressure centered over the Four Corners region of the Desert Southwest.  Temperatures will soar well past…

 July 12, 2019 Summary: Now that upper level high pressure has set up shop over the Four Corners region of the Desert Southwest, the winds aloft have become briefly southerly.  Mid and high level clouds from the monsoon have worked their way as far north as southern Yuma County.  It’s possible a limited amount of…

 July 11, 2019 Summary: High pressure at the mid and upper levels of the atmosphere has become ensconced over the Four Corners region of the Desert Southwest.  The high is expanding west and northwest, finally returning temperatures to near seasonal averages today with readings moving into triple digits Friday through Monday.  For now, it appears…

 July 10, 2019 Summary: Temperatures are running generally 3 to 6 degrees warmer than 24 hours ago.  The air aloft is also warming as the freezing level overnight at Vandenberg had risen to 15,800 feet.  As evidence of strong upper level high pressure building over the Desert Southwest, Las Vegas is reporting a freezing level…

 July 9, 2019 Summary: The marine layer 24 hours ago was nearly 3,000 feet deep.  The latest sounding at the naval installation at Monterey was 1,600 feet.  Also, the rather robust onshore flow of the past few days is now waning, effectively cutting off the flow of modified sea breeze from moving down the valley. …

 July 8, 2019 Summary: Low pressure is currently centered over Washington state and as expected has developed a trough down into northern and central California.  As a result, a strong onshore flow has set up.  The depth of the marine layer at Monterey this morning is more than 3,000 feet which means marine air is…

   July 6, 2019 Summary: Weak low pressure centered near Vancouver Island this morning has had a trough into northern and central California for the better part of this week.  That trough has very temporarily retreated northward, allowing weak upper level high pressure to expand northward over central California.  The freezing level taken overnight at…

 July 3, 2019 Summary: Weak upper level high pressure is building slowly northward from its center off the Baja, California coast.  This will allow that trough of low pressure to retreat northward.  The result will be a temporary warming trend with hottest locations by Saturday afternoon moving into the lower 100s.  even though the marine…

We will be out of the office Thursday, July 4.  Reports will resume Friday, July 5. July 3, 2019 Summary: Low pressure remains centered over Oregon this morning with a weak trough down into northern and central California.  The winds aloft remain out of the west/southwest and there are a few high clouds embedded within…