Gulf Coast Hurricane Tracker

A single source reference on tropical weather predictions. With a traditional focus on the upper Texas and Louisiana Gulf Coast we've maintained links to track all Atlantic Basin, Caribbean and eastern Pacific storm systems. We are now expanding our view to tropical storms throughout the world intending to be a comprehensive global storm tracking resource.

Sunday, November 29, 2009

Typhoon Nida winds down

Typhoon Nida has degraded from a monster Supertyphoon to a strong but weakening typhoon northwest of Guam. Current windspeed is approximately 110 knots with essentially no forward motion. Sustained windspeed is expected to decrease fairly steadily over the next few days as Nida decreases from a Cat 3 typhoon to a Cat 2 in 24 hours and a tropical storm by mid week.

Nida Downgrades To A Typhoon, Hovers Northwest Of Guam (Guam News Factor)
GUAM - As of 1:20 p.m. Chamorro Standard Time, Nida remained nearly stationary and had been downgraded to a typhoon from its previous incarnation as a super typhoon, according to the National Weather Service.

Typhoon Nida: 'Stationary And Weakening', Away From Guam (Guam News Factor)

GUAM - As of 7:46 p.m. Chamorro Standard Time, Typhoon Nida was stationary and weakening, according to the National Weather Service. No watches or warnings were in effect.

At 7:00 p.m. ChST, the eye of Typhoon Nida was located near 19.5 degrees North Latitude and 139.3 degrees East Longitude.

This is about:
550 miles Northwest of Guam, and
520 miles Northwest of Saipan.

Typhoon Nida has continued to show little movement. Nida is expected to drift Northward overnight and Monday.

Maximum sustained winds have decreased slightly to 140 MPH. Typhoon force winds extend upward up to 75 miles from the center. And Tropical Storm force winds extend outward up to 190 miles from the center. Nida is expected to weaken through Monday.

Even with the decreasing intensity of Typhoon Nida, this is still a dangerous storm. Wind speeds of 140 MPH are very dangerous. The energy associated with a storm of this intensity will produce very strong waves. As the storms intensity decreases, the wave action will diminish much more slowly. This effect was seen with Hurricane Ike when the storm intensity dropped to a Cat 2 but the storm surge was the equivalent of a Cat 4.

WEATHER UPDATE 8:45 a.m. - Super Typhoon Nida still sending powerful waves to Guam (
A stationary super typhoon that is no longer a threat to Guam is still sending large sea swells to western and northern beaches, according to a forecast from the National Weather Service.

“This will prolong the period of time that large swells from the typhoon arrive in the Marianas,” the forecast states.

Hazardous surf and a high risk of rip currents are expected to last until at least Tuesday afternoon.

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