Monday, July 28, 2014

Mostly Cloudy with Intermittent Heavy Rain and Thunderstorms

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
Monday, July 28, 2017
Today, skies will be cloudy with scattered, intermittent rain showers. Winds will be easterly in direction at 8 mph to 12 mph this morning; increasing to 15 to 25 mph this afternoon and evening. Seas will be choppy at 2 to 4 feet. Winds and seas are forecast to remain at these strengths for the rest of this week.
The air temperatures will range from the mid to high 70s (ºF) to the mid to high 80s (ºF) or 24ºC to 26ºC.
Ocean water temperatures are 82°F to 84°F or 24ºC to 25ºC. Visibility is 20 to 80 ft.
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.







 






 Fig 14 - Today's Enhanced Infrared Satellite Image

 Fig 15 - Today's Tropical Surface Forecast

 Fig 16 - Today's NOAA Tropical Atlantic Surface Analysis

Fig 17 - Today's Saharan Air Layer

 Fig 17a -Analysis of the Saharan Air Layer (SAL)
 made at 8 am EDT Monday July 28, 2014 using data from the Meteosat-9 satellite. Dry, dusty air was present from the coast of Africa westwards across the tropical Atlantic, but was located well to the north of tropical disturbance 93L

 Fig 18 - Today's Saharan Air Layer_Pseudo Natural Color

Fig 19 - Recent changes in the Saharan Air Layer
 
Fig 20 - SSMI/SSMIS/TMI-derived Total Precipitable Water - North Atlantic

The Tropical Weather Outlook
A tropical wave located several hundred miles southwest of the 
Cape Verde Islands is producing disorganized cloudiness and 
thunderstorms.  Environmental conditions are expected to be 
conducive for gradual development of this disturbance over 
the  next several days while it moves generally westward at 
10 to 15 mph. This wave has been designated 93L by the NHC.
* Formation chance through 48 hours...medium...30 percent.
* Formation chance through 5 days...high...70 percent.
a tropical wave moving W-NW 20 kt across the Central Caribbean 
along 84W will move into the Yucatan later today. A tropical 
wave currently across the E Central Atlantic is expected to 
encounter favorable environmental conditions across the 
Central Atlantic by mid-week and has potential to become a 
tropical cyclone.
 
Forecast for 93L by Dr. Jeff Masters
The 12 UTC Monday forecast from the SHIPS model predicted 
that wind shear will remain low to moderate, 5 - 15 knots, 
for the remainder of the week, aiding development. Sea 
Surface Temperatures (SSTs) will cool a bit to 27°C on 
Tuesday and Wednesday, which will tend to slow development. 
Two of our three reliable models for predicting tropical 
cyclone genesis, the GFS and UKMET models, predicted in 
their 00Z Monday runs that the disturbance would develop 
into a tropical depression by Thursday. Several of our 
less reliable models, the NAVGEM and Canadian models, 
also predicted development. The only reliable model 
that did not predict development was the European model, 
which historically has had the highest incidence of 
failing to predict development when development actually 
occurs. The fact that two out of three of the reliable 
genesis models predict development bolsters the odds 
that development will actually occur. In their 8 am 
EDT Monday Tropical Weather Outlook, NHC put the 5-day 
odds of development at 70%, up from their 40% forecast 
from Sunday.

All of the models predict that the disturbance will 
continue due west or west-northwest at 10 - 15 mph for 
the next five days. The UKMET is the fastest of the models, 
predicting that the disturbance will arrive in the Lesser 
Antilles Islands on Friday evening. The GFS is slower, 
predicting a Saturday morning arrival in the islands. 
Once the disturbance crosses west of about 55°W longitude 
on Thursday, ocean temperatures will warm to about 28°C, 
which should aid development. Dry air to the north will 
likely interfere with development late in the week, and 
we will have to see if the moderate levels of wind shear 
forecast to occur over the tropical Atlantic will be 
capable of driving this dry air into the core of the system, 
disrupting formation. The disturbance may also have trouble 
disentangling itself from the Intertropical Convergence 
Zone (ITCZ), the band of heavy thunderstorms that circles 
the globe in the tropics, which lies just to the south of 
the disturbance. Clusters of thunderstorms in the ITCZ may 
compete for moisture and energy, slowing development of 
the disturbance.

The long-range fate of 93L remains highly uncertain, and 
will depend upon exactly how far south the center ends up 
consolidating when the storm develops. Most of the 20 
members of the 06Z Monday run of the GFS ensemble model 
(which runs the GFS model at low resolution 20 times with 
slightly different initial conditions to show a range of 
possible outcomes) showed the disturbance missing the U.S. 
East Coast and recurving out to sea next week; four of the 
embers showed 93L hitting the Southeast U.S. coast. Most of 
the members of the 00Z Monday run of the European ensemble 
model showed 93L moving into the Eastern Caribbean on a more 
southerly trajectory without re-curving.
 
 
low tide 3:24 am LT             Moon Rise – 6:48 am LT
high tide 9:23 am LT            Moon Set –7:40 pm LT
low tide 3:25 pm LT             Sunrise – 5:28 am LT
high tide 9:39 pm LT            Sunset – 6:20 pm LT

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