Tuesday, October 21, 2014

Again Sunny and Calm

The CoCoView Resort Weather Forecast
This weather forecast is intended for CoCoView Resort guests and applies only to the south side of Roatan
CoCoView is at 16.4°N Latitude x 86.4°W Longitude
in the
   NW Caribbean Sea

             CoCoView Resort, www.cocoviewresort.com , 800-510-8164

How to use this page:
The title of each of the figures below is linked to the page where the information originates.
Since I write and post early in the day and generally do not update the page until the next morning; by clicking on the link, it allows you, the viewer, to get the latest information.
This is not only convenient but allows you to track weather events such as cold fronts and hurricanes from a single web page.
In addition, in the right column is a very useful widget. It is a trip planner...yesteryear's weather at a glance.This widget lets you check historic weather for your trip dates.

2014 Hurricane Outlook and Forecasts
The hurricane season in this hemisphere starts on June 01 and ends on November 30.
During that time frame, for your convenience, you will find a section below titled, "Tropical Weather Outlook".
It will contain the daily tropical storm outlook, forecast and storm track(s).

NOAA predicts near-normal or below-normal 2014 Atlantic hurricane season.
El Niño is expected to develop and suppress the number and intensity of tropical cyclones.
This year, the Saharan Air Layer (SAL) has been decreasing in size and density since May 21, 2014. This is important because it has been postulated, that the SAL, a cool, dry, layer of air which contains particles, may inhibit the formation of tropical storms and hurricanes. In addition, as it decreases in size and density, the probability of tropical storm formation may increase.

The outlook calls for a 50 percent chance of a below-normal season, a 40 percent chance of a near-normal season, and only a 10 percent chance of an above-normal season.  For the six-month hurricane season, which begins June 1, NOAA predicts a 70 percent likelihood of 8 to 13 named storms (winds of 39 mph or higher), of which 3 to 6 could become hurricanes (winds of 74 mph or higher), including 1 to 2 major hurricanes (Category 3, 4 or 5; winds of 111 mph or higher).
These numbers are near or below the seasonal averages of 12 named storms, six hurricanes and three major hurricanes, based on the average from 1981 to 2010. The Atlantic hurricane region includes the North Atlantic Ocean, Caribbean Sea and Gulf of Mexico.

Monday, August 25, 2017
Today, skies will be mostly sunny. Winds will be very light and variable in direction at 5 mph or less. Seas will be calm at 1 to 3 feet or less. There is a very slight chance of scattered rain showers and isolated thunderstorms, especially during the early morning, late night hours.
The air temperatures will range from the mid to high 70s (ºF) to the mid to high 80s (ºF) or 24ºC to 26ºC. It will feel much warmer then this with little or no wind. Expect these weather conditions to prevail through midday Wednesday
Ocean water temperatures are 82°F to 84°F or 24ºC to 25ºC. Visibility is 20 to 80 ft.







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Fig 19 - Recent changes in the Saharan Air Layer


The Tropical Weather Outlook
1. Invest 93L - Satellite images and surface observations indicate that the area of low pressure in the southern Bay of Campeche has become better defined. Although the associated showers and thunderstorms are currently not well organized, this system has the potential to become a tropical cyclone during the next day or so while it moves slowly eastward toward the western Yucatan Peninsula. Later in the week, the low is forecast to interact and possibly merge with a frontal system over the southeastern Gulf of Mexico or northwestern Caribbean Sea. An Air Force Reserve reconnaissance aircraft is scheduled to investigate the disturbance this afternoon. Interests in the Bay Islands and north coast of Honduras should monitor the progress of this system. 
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...medium...50 percent.
2. Fresh to occasionally strong E to SE winds are expected across the NW Caribbean and Gulf of Honduras through Wed. Invest 93L, a low pressure system in the SW Gulf of Mexico is forecast to move E and enter the W Caribbean on Fri...possibly as a tropical cyclone...and slowly move SE. A cold front will pass through the Yucatan Channel by Sat and extend from central Cuba to Belize Sat night. A tropical wave will enter the tropical N Atlantic on Wed...the E Caribbean by Thu...the central Caribbean by Fri...and the W Caribbean Sat.


Gulf of Mexico's 93L a Heavy Rain Threat

By: Dr. Jeff Masters , 3:25 PM GMT on October 21, 2014

An area of low pressure over the Gulf of Mexico's Bay of Campeche (93L) contains moisture and spin from the Eastern Pacific's Tropical Storm Trudy, which made landfall near Acapulco last weekend. 93L will bring heavy rains to Mexico's Yucatan Peninsula, Western Cuba, and South Florida Wednesday through Friday. Satellite loops show the low has a moderate degree of spin and plenty of heavy thunderstorm activity, but these thunderstorms are poorly organized, due to high wind shear of 30 knots. Mexican radar out of Altamira does show at least one spiral band had formed near the coast Tuesday morning, though. Water vapor satellite images show there is dry air from Mexico flowing eastwards over the western Gulf of Mexico, which is likely slowing development. Sea Surface Temperatures (SSTs) are very warm, about 29.5°C. The 8 am EDT Tuesday run of the SHIPS model predicted that wind shear would fall to the moderate range, 10 - 20 knots, Wednesday - Friday, giving 93L a better chance to develop then. The Tuesday morning runs of our three reliable models for predicting tropical cyclone genesis, the European, GFS and UKMET models, all showed support for some slow development of 93L this week. The storm is likely to move slowly eastwards across the Bay of Campeche on Tuesday and Wednesday, cross over the Yucatan Peninsula on Thursday, move through the Florida Straits between Cuba and South Florida on Friday, then into the Bahamas on Saturday. Along its path, 3 - 6" of rain are are likely--with higher rainfall amounts to be expected if 93L ends up developing into a tropical depression. In their 8 am EDT Tuesday Tropical Weather Outlook, NHC gave 93L 2-day and 5-day development odds of 40% and 50%, respectively. A hurricane hunter mission is scheduled to investigate 93L Tuesday afternoon, but may be cancelled.

The prospects of 93L developing into a damaging hurricane are very low, and this storm is primarily a heavy rain threat. However, both the GFS and European models show the possibility that the trough of low pressure expected to pick up 93L and pull it northeastwards out to sea this weekend may leave behind an area of spin in the Western Caribbean early next week that would potentially have the capability to develop into a more dangerous tropical cyclone than 93L. It's too early to be sold on this model solution yet, but we should pay attention to the evolution of this storm system over the coming week.

 Fig 21a - Graphical 5 Day Tropical Weather Outlook

Fig 23 - 48 Hour Tropical Storm Probability


 Fig 26 - Storm Statistics  93L
low tide 12:44 am LT              Moon Rise – 3:45 am LT
high tide 7:25 am LT               Moon Set –4:09 pm LT
low tide 1:06 pm LT                Sunrise – 5:41 am LT
high tide 6:42 pm LT               Sunset – 5:23 pm LT


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