Tuesday, June 23, 2020

Summertime, And The Air Is Restless


Our summer weather pattern is starting. First picture, taken at 1300, shows growing cumulus with tops nearing FL25.

Second picture, a T-cell in the area of DrJim’s home, about 1830.


Both pictures taken looking NNW from Greeley, CO.

Third picture shows the sky SSW of Greeley at 1830. Based on the surface wind in Greeley, there is higher atmospheric pressure in that area. Since winds move in a clockwise direction around the low side, that T-cell will be pushed towards Nebraska/Kansas across the High Plains. This will be accelerated by the winds aloft.

Weld County, which this cell will cross, is  #2 in the USA for tornadoes.

Arriving by air at Denver International can be “exciting” in the afternoon. Today, the “Albuquerque Low” is on the mild side. When it is strong, the thunderstorms can be forced against the Front Range, stall, and flood our Foothill canyons. That is not a place you want to be.



Wise General Aviation pilots know to do their aviating in the early morning hours.

The professionals, and the Civil Air Patrol, often don’t have that choice.

10 comments:

drjim said...

And I'm getting better at reading the local forecast and weather radar returns.

Got about .02" of rain today over a 20 minute period. Nice, calm shower, always good in the afternoon.

Looks like the cell that came through is about half-way between you and Fort Morgan.

Only had one bumpy arrival, and one bumpy departure, out of DIA.

Well Seasoned Fool said...

My worst was in a commuter from Fargo, ND. At the start the lady sitting next to me was standoffish. By the time we landed she was clinging to me like I was her husband.

LL said...

Mile High Club, WSF...you old dog!

Well Seasoned Fool said...

LL
Not that time, alas.

Old NFO said...

Yep, gets a 'tad' sporty up in that area with the weather... And throw in the Mountain Wave for 'fun'!

Well Seasoned Fool said...

OldNFO
Going eastbound once got caught in a wave. Went from 11,000' to 18,000' very quickly then down to 9,000'. Good news was we were past the Divide headed for 6,000' terrain.

Brig said...

Flying with Dad in the cub could be much the same...

Well Seasoned Fool said...

My Dad and I went in together on a Piper J-4. We were very, very careful when and where we flew it off the 6,980' altitude airport we used. Great fun! He upgraded to a C-182.

drjim said...

Had a few flights in a Cub, but never soloed in one. Cool little airplanes!

Well Seasoned Fool said...

The J-4 was a side by side. Ours was manufactured in 1939. Had been re-engined to a 75 HP!