Maps & Radar
Photos & Video
Tropical Weather Discussion
000 axpz20 knhc 042117 twdepTropical weather discussion NWS National Hurricane Center Miami FL 2205 UTC Wed Dec 04 2013Tropical weather discussion for the eastern Pacific Ocean from the Equator to 32n...east of 140w. The following information is based on satellite imagery...weather observations...radar...and meteorological analysis.Based on 1800 UTC surface analysis and satellite imagery through 2100 UTC....Intertropical convergence zone/monsoon trough...The monsoon trough extends from 09n84w to 08.5n94w to 07n97w where low level winds suggest a transition to ITCZ which extends to 10.5n119w to 06n130w to beyond 06n140w. Scattered moderate isolated strong convection was noted within 180 nm of ITCZ between 117w and 123w....Discussion... a dissipating cold front extends across the far northern part of the forecast area with fresh to locally strong winds found N of the front. Strong high pressure of 1038 mb centered well N of the area is producing a pressure gradient that is supporting moderate to fresh trades N of the ITCZ and W of 130w. The frontal boundary will weaken over the next couple of days as the area of strong high pressure well N of the area builds southward closer to the forecast area. This will tighten the pressure gradient over the forecast area and strengthen trades over the forecast area N of the ITCZ and W of 130w with seas building to 9 ft. Otherwise...relatively benign conditions will prevail over the forecast area.Looking ahead...the next occurrence of gap winds into the Gulf of Tehuantepec is expected to occur over the coming weekend. A cold front will move into the Gulf of Mexico by early Friday and move across the Gulf of Mexico through the early part of the weekend. The front will stall over the Western Bay of Campeche this weekend as the upper trough providing support for the front lifts out. Denser air behind the front will funnel through the chivela pass into the Gulf of Tehuantepec. Since the push behind the front will diminish as the front stalls...winds over the Gulf of Tehuantepec are only expected to briefly reach 20-25 kt Sat night into sun before diminishing below 20 kt by Sun afternoon.$$ Al
By Dr. Jeff Masters
8:44 PM EST on December 03, 2013
A developing extratropical low pressure system over the North Atlantic, dubbed "Xaver" by the Free University of Berlin, is predicted to "bomb" into a potent storm with winds near hurricane force that will bring damaging...
All Atlantic Storms (1851-2013)
Named Storms for 2013
|Get Free Weather Stickers®|
|Upload Your Photos|
|Weather™ API for Developers NEW!|
|Become a Site Member|
|Find us on Facebook|
|Follow us on Twitter|
Custom Weather Services
In addition to this website, we provide a number of free and professional weather services.
Advertise On This Site
Weather Underground has extensive targeting capabilities to fulfill all of your client's advertising needs.