UPDATED: impact of heat bubble from upper high

[windfind]

Hi Gang,

The Southern California NWS:

The upper high will help to bring widespread subsidence, some offshore flow and increasingly hot temperatures to the forecast area Sun through Monday. Widespread triple digit heat can be expected for the valleys, foothills and deserts on Sunday, with triple digit heat peaking on Monday, where some inland coastal sections will reach the century mark. Sun highs will be in the 100–108° range for the valleys, foothills and deserts. On Monday, near record highs of up to 110° are expected in the valleys and up to 112 in the desert areas.

You know the pattern. Hot air inland makes for a strong pressure gradient and strong winds....right. Not always.

Check out this blog and meet the "heat bubble" and the massive near record breaking 500 mb upper high at ≈ 18,000 ft. feet behind all of this.

http://blog.weatherflow.com/low-pressure-is-always-a-good-thing-for-thermal-winds-right/


Mike Godsey
iwindsurf.com/ikitesurf.com
Weatheflow.com

[windfind]

Hi Gang,

Look at the graphics above about why I was at 7AM yesterday forecasting thermal trough (aka "heat bubble") issues in Southern California for Belmont to Seal.

Then below look at the isobar graphic and wind graphs for later yesterday afternoon. You can really see how critical the location of isobars is for each site. Note how up and down the winds were inside the heat bubble compared to the steadier winds beyond the bubble.

Mike Godsey
iwindsurf.com/ikitesurf.com
Weatheflow.com