| vineyardsaker |
| (Weather Guru) |
| Mon Jul 04 2011 09:55 AM |
|
Re: Areas to Watch
|
and what is a 'ULL"?
thanks!
Oops. A ULL is an Upper Level Low. Area in the mid to upper levels that rotates counterclockwise.
Not normally conducive for tropical cyclone formation.
See the ghost looking swirls in the water vapor, WV, image above.
ULL located near the Yucatan Peninsula and another about 300 miles due east of Jacksonville,FL.
Specific areas of ULLs can and do allow cyclones to form. And can assist the cyclone in developing.