19 Sep Weather in Cayman & Tropical Report, 2 TD
19 Sep Wed 2018
Tropical Report
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Wed Sep 19 2018
For the North Atlantic…Caribbean Sea and the Gulf of Mexico:
1. A large area of disturbed weather located a little more than 1000
miles east of the Windward Islands is associated with a tropical
wave moving westward about 10 to 15 mph. Some slight development is
possible during the next day or two before the environment becomes
unfavorable for tropical cyclone formation.
* Formation chance through 48 hours…low…20 percent.
* Formation chance through 5 days…low…20 percent.
2. A non-tropical low is forecast to form this weekend between Bermuda
and the Azores. After that time, conditions are expected to be
favorable for subtropical or tropical cyclone formation while the
low meanders over the north Atlantic.
* Formation chance through 48 hours…low…near 0 percent.
* Formation chance through 5 days…low…20 percent.
Forecaster Avila
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Wed Sep 19 2018
For the eastern North Pacific…east of 140 degrees west longitude:
1. A large area of disorganized showers and thunderstorms extending
from the southern Baja California peninsula northeastward over the
southern and central portions of the Gulf of California are
associated with a broad area of low pressure. Although the
thunderstorm activity has increased and become more concentrated
this morning, the system is forecast to move northward into
northwestern mainland Mexico tonight limiting its development
potential. Regardless of development, this disturbance is
expected to produce total rain accumulations of 5 to 10 inches,
with isolated maximum amounts of 15 inches across portions of Baja
California Sur, Sinaloa, and Sonora through Thursday. This rainfall
may cause life-threatening flash floods and mudslides. Moisture
from this disturbance will also lead to areas of heavy rainfall and
a risk of flash flooding in the southwestern United States
beginning today.
* Formation chance through 48 hours…low…30 percent.
* Formation chance through 5 days…low…30 percent.
2. Another elongated area of low pressure is located about 900 miles
southwest of the southern tip of the Baja California peninsula.
Environmental conditions are expected to be conducive for some
gradual development of this system during the next few days while
it moves slowly west-northwestward or northwestward.
* Formation chance through 48 hours…low…20 percent.
* Formation chance through 5 days…medium…40 percent.
Forecaster Brown
Global Tropics & Benefits Outlook
Weather in Cayman
SYNOPSIS
Cloudy rainy conditions association with a tropical wave, the remnants of Isaac, are expected to continue across the Cayman area through Thursday morning with a gradually decrease thereafter. Radar images show scattered showers in and around the Cayman area moving north to northwest.
Humidity: 95% (UP from yesterday)
UV: 13.7 EXTREME (UP from yesterday)
Temperature: Today’s current temperature – See weather forecast top right of website. Yesterday: H 88.5°F L 74.6°F
Wind direction TODAY: ESE 10-20 mph GC
Wind direction TONIGHT: E 10-15 mph GC
Barometer: 1012.90 mb Steady Rain: Last month: 1.83 in Last 24 hrs 1.78 This month: 12.10 in 0 days since rain 11 rain days in September
2017 Season Total: 62.94 in 2018 Season Total: 36.11 in
Average Yearly Rainfall 56.20 in (Note: National Weather Service 2017 Season Total – measured at Owen Roberts Airport GT – was 59.32 in)
All readings are from SOUTH SOUND.
Average rainfall in September 8.2 in. Average temperature in September: 77°F to 90°F
Sea Temperature in September 84°F
MOON:
73% Waxing Gibbous
TIDES, SUNRISE, SUNSET, MOON RISE, MOON SET AND MOON PHASE
GRAND CAYMAN SEPTEMBER 2018 – Click to enlarge
LOCAL 5 DAY FORECAST
http://www.weather.gov.ky/portal/page?_pageid=4421,7428393&_dad=portal&_schema=PORTAL
FOR RADAR IMAGE GO TO: http://www.weather.gov.ky/portal/page/portal/nwshome/forecasthome/radar
Also see Weather In Cayman: http://www.weatherincayman.com/
Moon info and graphic:
https://www.timeanddate.com/moon/uk/georgetown
Atlantic satellite image: http://www.intellicast.com/global/satellite/infrared.aspx?region=hiatlsat
Description:
The Global Infrared Satellite image shows clouds by their temperature. Red and blue areas indicate cold (high) cloud tops. Infrared (IR) radiation is electromagnetic radiation whose wavelength is longer than that of visible light, but shorter than that of terahertz radiation and microwaves. Weather satellites equipped with scanning radiometers produce thermal or infrared images which can then enable a trained analyst to determine cloud heights and types, to calculate land and surface water temperatures, and to locate ocean surface features.
Tropical storm data and graphics from National Hurricane Center at: https://www.nhc.noaa.gov/
Weathernerds: https://www.weathernerds.org/
Mikes Weather Page: http://www.spaghettimodels.com/
