965
ABPZ20 KNHC 142314
TWOEP
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Tue Aug 14 2018
For the eastern North Pacific...east of 140 degrees west longitude:
A well-defined low pressure system is located about 1050 miles
southwest of the southern tip of the Baja California peninsula.
Associated thunderstorm activity continues to gradually increase in
organization, and a tropical depression is likely to form tonight or
Wednesday while the disturbance moves westward at 10 to 15 mph.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 5 days...high...near 100 percent.
$$
Forecaster Stewart
933
ABNT20 KNHC 150241
TWOAT
Special Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1040 PM EDT Tue Aug 14 2018
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
Special outlook issued to update discussion of the area of low
pressure located well southeast of Cape Race, Newfoundland.
Updated: Satellite imagery indicates that shower and thunderstorm
activity associated with the area of low pressure located about 800
miles south-southeast of Cape Race, Newfoundland, has become better
organized during the past few hours. Satellite-derived wind data
also indicate that the surface circulation has become better defined
since earlier today. Conditions appear conducive for some additional
development during the next day or so, and a subtropical depression
or subtropical storm could form overnight or on Wednesday while the
low moves northward to northeastward. Later this week, the low is
expected to move northeastward over colder waters and merge with a
frontal zone over the northern Atlantic.
* Formation chance through 48 hours...medium...60 percent.
* Formation chance through 5 days...medium...60 percent.
$$
Forecaster Brennan/Stewart
THERMAL LOW (Heat Low) During the summer the intense Arizona heat causes the formation of a thermal low (heat low), this thermal low usually forms near Yuma. It is usually formed by the intense thermal updrafts and rapidly rising air that cause lower Barometric pressure levels whichs leads to the formation of a surface low pressure area. This feature can enhance the moisture levels during the monsoon by pulling in low level moisture from Baja California.
New Feature
