Cloud Stalker

Saturday, April 14, 2007

More near record temperatures are expected today. Yesterday we tied a record high of 90 degrees at TIA. South winds will blow today across the Florida Peninsula and breezy conditions are expected ahead of a strong cold front that will move through the Bay area overnight.
you would think it was summer already.
Of course the storms from the cold front will be over night and into the morning i have to work in the morning.I will still bring my camera with me you never know.
yesterday storms in Texas has me wishing it was the year to start chasing. I am know where near ready. So much to learn, i can't go by instinct anymore.

2 comments:

Dewdrop said...: Cool site upgrades!!!

Oh, and I hear you! I can't wait to chase!!!; April 16, 2007 at 10:50 AM
CloudStalker said...: Thanks!!!!
Look at you in vegas!!
HAve a great time!!; April 16, 2007 at 10:59 AM

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HAIL (3/4 inch or greater)

Hail can cause significant damage to your vehicle, break windows and damage roofs of homes and businesses.
Hail can cause significant bodily injuries such as broken bones and even blindness if wind blown.
Softball (4.5 inches) sized hail was reported in Lake Wales, Florida on March 30, 1996.
Haildrifts, up to four feet deep of dime to nickel sized hail, occurred in low-lying areas near Zephyrhills, Florida on January 29, 1997.
Hailstones the size of softballs can fall at speeds faster than 100 mph

supercell

Supercells derive their rotation through tilting of horizontal vorticity (an invisible horizontal vortex) caused by wind shear. Strong updrafts lift the air turning about a horizontal axis and cause this air to turn about a vertical axis. This forms the deep rotating updraft, the mesocyclone.
A cap or capping inversion is usually required to form a downdraft of sufficient strength. The cap puts an inverted (warm-above-cold) layer above a normal (cold-above-warm) boundary layer, and by preventing warm surface air from sinking too far, allows one or both of the following:
Air below the cap warms and/or becomes more moist
Air above the cap cools
This creates a warmer, moister layer below a cooler layer, which is increasingly unstable (because warm air is less dense and tends to rise). When the cap weakens or moves, explosive development follows.
In North America, supercells usually show up on Doppler radar as starting at a point or hook shape on the southwestern side, fanning out to the northeast. The heaviest precipitation is usually on the southwest side, ending abruptly short of the rain-free updraft base or main updraft (not visible to radar). The rear flank downdraft, or RFD, carries precipitation counterclockwise around the north and northwest side of the updraft base, producing a "hook echo" that indicates the presence of a mesocyclone.