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The official tropical weather thread 2018

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The official tropical weather thread 2018

Postby MISHI » August 10th, 2008, 11:56 am

Welcome to the official Tropical Weather Thread. All weather related info for Trinidad & Tobago and the Tropics in general will posted here.

All image maps and weather related satellite imagery etc are listed below:

Live RADAR
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(HURRICANE SEASON NOTE)

As always, from the ending of May, it comes the time once again, when we start looking eastward (and also westward in rare cases)

To all the posters, actual meteorologists (especially Hook) with info, links and warnings/ advisories... special thanks are in order. Now Trinidad may be more South of the belt, while Tobago is more in the line of fire, but this does not exempt Trinidad from being hit.

And while most like to state that God is a Trini, should a hurricane actually hit Trinidad, the cry shall become "The Devil is a Trini" as well. If you're one of those individuals... I suggest you start thinking seriously about the weather cause in a heartbeat you can lose everything: You have to experience the power that is a storm (depression/ tropical storm/ hurricane) to understand why it isn't something to be taken lightly.

- Mishi.

What you need to know & what you should have BEFORE the season starts

(This excerpt from gulf coast.com )

Step 1.

KNOW SOME OF THE DANGERS ASSOCIATED WITH A STORM.

Flooding
Can occur from heavy rains,rivers,drainage ditches.
Storm Surge
Typically associated with the land falling hurricane.
Depending on intensity of storm, can cover extremely
large areas of coastline, as Katrina demonstrated.
The storm surge typically causes the most deaths associated
with a hurricane.
High Wind
Roof damage,falling trees,power lines, can demolish entire
homes.
Tornadoes (sounds crazy for trinidad but it's possible)
Often occur with land falling hurricanes. Can cause tremendous
wind type damage very far from the center of a hurricane in
unexpected areas.
Know what potential hazards may affect you or your home. Flooding potential, storm surge susceptibility. If your home or residence may flood. (or any major threat) LEAVE.

Step 2.

Start collecting material and supplies NOW. Wood / Shutters for boarding up windows. Dont wait until the last minute to try to aquire wood and then cut and mount it. Have it precut and ready to mount. Store it until needed. I know from experience that trying to hold a 8x4 plywood sheet on a ladder in gusty wind is very difficult.
Who would have guessed that the ply-lock clips used to mount plywood sheets on windows would disappear off the shelfs as a storm approached.. Prepare Early.

Test your generator NOW (if you have one) and perform any repairs. A generator that doesnt work properly after the storm is not very helpful.

Step 3.

Have an evacuation plan. While you can not easily say where exactly you will evacuate months in advance. Ensure your friends and family know where you plan to evacuate.

Step 4.

If a hurricane developes. Stay Informed! Do be caught by suprise if a storms path or intensity changes. We know that a storms path and intensity can change dramatically in hours. In sometimes, unexpected manners. OBEY your local governments recommendations. If they suggest you leave the area..seriously consider leaving. Know where local shelters are setup. Know what is allowed to take to a shelter. Dont just show up without food or water or blankets. They may not be setup to provide them. They will be providing a place thats safer to stay in than your home in most cases.


--------------------------------------------------------------------------------


Your Disaster Supply Kit (Yes YOU should have one)-

The following (taken from the NHC Disaster Supply Kit Instructions) should be included in everyones "Kit".

Water - at least 1 gallon daily per person for 3 to 7 days (more is better)

Food - at least enough for 3 to 7 days
• non-perishable packaged or canned food / juices
• foods for infants or the elderly
• snack foods
• non-electric can opener
• cooking tools / fuel
• paper plates / plastic utensils

Blankets / Pillows, etc.

Clothing - seasonal / rain gear/ sturdy shoes

First Aid Kit / Medicines / Prescription Drugs

Special Items - for babies and the elderly

Toiletries / Hygiene items / Moisture wipes

Flashlight / Batteries (lots of batteries... also extra bulbs)

Radio - Battery operated and NOAA weather radio

TV - Battery operated...


Cash (with some small bills) - Banks and ATMs may not be open or available for extended periods.

Keys

Toys, Books and Games (to keep kids at bay)

Important documents - in a waterproof container or watertight resealable plastic bag
• insurance, medical records, bank account numbers, Social Security card, etc.

Tools - keep a set with you during the storm

Vehicle fuel tanks filled

A container with fuel or diesel for your car/ van

Pet care items
• proper identification / immunization records / medications
• ample supply of food and water
• a carrier or cage
• muzzle and leash

Ensure your Generator is functional.
Additionally we found that having several extra gas cans for our generator was VERY helpful. Also if you are able you might want to stockpile some fuel in advance, but be aware that long term storage of gas requires specific fuel additives and some very serious safety issues.


Especially make sure that things around your house that can be blown away and become missiles be secured in the event of a storm. Animals fear storms (believe it) so do not leave them loose... Make sure your house is in order structurally and any repairs do it if you can. Wind will ALWAYS find the weakest point and work frm there to destroy your items...

make sure and have at least a cellular contact for your family and neighbors and KEEP YOUR CELLPHONE CHARGED! in the event that something happens to you or you need to check on someone you are accessible.

TEMA (not sure about trini) have warning sirens out and about... if a storm approaches AND you hear the siren do not act like the boy who cried wolf... Prepare your items and DO NOT wait for the 11th hour to get your items at the supermarket...

So to all of you... keep your ears and eyes open... alert your neighbor and good luck to all of us for this and future seasons...

Terminology:
The Inter-Tropical Convergence Zone (ITCZ) is a band of clouds consisting of showers, with occasional thunderstorms, that encircles the globe near the equator. The solid band of clouds may extend for many hundreds of miles and is sometimes broken into smaller line segments.

A Tropical Disturbance is a discrete weather system of apparently organized convection, originating in the tropics or subtropics and existing for a period of over 24 hours .Disturbances are characteristically approximately 200-600 km in diameter.
Tropical waves are generally carried westward by the prevailing easterly winds along the tropics and subtropics near the equator. They can lead to the formation of tropical cyclones in the north Atlantic and eastern north Pacific basins.

A Tropical Cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain.

A Tropical Depression is a tropical cyclone with a maximum sustained wind speed of less than 39 mph.

A Tropical Storm is a tropical cyclone with maximum sustained wind speeds between 39 mph and 73 mph.

A Hurricane is a tropical cyclone with maximum sustained winds of 74 mph+.

Watches and Warnings
A Tropical Storm Watch is an announcement that tropical storm conditions (sustained winds between 39 mph and 73 mph) are possible within the specified area in association with a tropical storm within 48 hours.

A Tropical Storm Warning is an announcement that tropical storm conditions (sustained winds between 39 mph and 73 mph) are possible within the specified area in association with a tropical storm, issued 36 hours in advance of the anticipated onset of tropical-storm-force winds.

A Hurricane Watch is an announcement that hurricane conditions (sustained winds of 74 mph or higher) are possible within the specified area in association with a tropical storm within 48 hours.

A Hurricane Warning is an announcement that hurricane conditions (sustained winds of 74 mph or higher) are expected somewhere within the specified area in association with a hurricane, issued 36 hours in advance of the anticipated onset of hurricane-force winds.

Hurricanes are classified into five (05) categories based on the intensities of their sustained winds, which is known as the Saffir-Simpson hurricane wind scale:
· Category 1: Winds speeds of 74-95 mph; very dangerous winds will produce some damage
· Category 2: Wind speeds of 96-110 mph; extremely dangerous winds will cause extensive damage
· Category 3: Wind speeds of 111-129 mph; devastating damage will occur
· Category 4: Wind speeds of 130-156 mph; catastrophic damage will occur
· Category 5: Wind speeds greater than 156 mph; catastrophic damage will occur and most areas will be uninhabitable

A Major Hurricane has winds greater than 110 mph. Category 3+ e.g. Hurricane Harvey (Cat.4), Hurricane Irma (Cat.5)
Maximum Sustained Winds is the standard measure of a tropical cyclone’s intensity. It refers to the highest one-minute average wind speed (at an elevation of 10 meters with an unobstructed exposure) associated with that weather system at a particular point in time.

The Eye (of the Hurricane) is a roughly circular area of comparatively light winds that encompasses the center of a severe tropical cyclone. The eye is either completely or partially surrounded by the eyewall cloud.

A Storm Surge is the rise in sea levels following a hurricane or major storm, where the height is the difference between the observed sea level and the level the water would be without a cyclone. Storm surge is usually estimated by subtracting the normal high tide from the observed storm tide.


The older discussions from 2010 and 2011 can be found here
http://www.trinituner.com/v3/forums/vie ... 09&start=0
Last edited by MISHI on July 10th, 2009, 12:27 pm, edited 2 times in total.

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The official tropical weather thread 2018

Postby TriP » April 8th, 2018, 10:19 am

The 2018 Atlantic Hurricane Season begins on June 1st but already the list of 21 storm names
have been revealed.

So far, the 2018 hurricane season is exhibiting characteristics similar to 1960, 1967, 1996, 2006 and 2011.”

And the years 1960, 1967 and 2006 had near-average Atlantic hurricane activity, while 1996 and 2011 were both above-normal hurricane seasons.



change tread name to 2018
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Re: The official tropical weather thread 2017

Postby shake d livin wake d dead » April 8th, 2018, 11:07 am

Last year had enough excitement...hopefully nothing this year

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Re: The official tropical weather thread 2017

Postby The_Honourable » April 8th, 2018, 11:29 am

redmanjp wrote:like dry season take a leave of absence this year


I want to change my roof but whole time rain falling :x

I'll wait it out a bit more but by June i want to get it done.

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Re: The official tropical weather thread 2017

Postby brickman » April 14th, 2018, 2:47 am

Loving the rain,place was warm tonight.

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Re: The official tropical weather thread 2017

Postby Morpheus » April 14th, 2018, 10:35 am

xtech wrote:It’s the first day of Spring.

Was pretty cool outside this morning

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Re: The official tropical weather thread 2018

Postby computercentral » April 15th, 2018, 8:38 pm

Weather Links lacking

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Re: The official tropical weather thread 2018

Postby xtech » April 16th, 2018, 6:03 am

Image

Image
Dust / Dry Air

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Click Link for Image Loop updated every 30min
http://rammb.cira.colostate.edu/ramsdis/online/loop.asp?data_folder=rmtc/rmtcbarir42&width=640&height=480

Live Lightning Detector Map
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Last edited by xtech on May 13th, 2018, 9:18 pm, edited 1 time in total.

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Re: The official tropical weather thread 2018

Postby xtech » April 16th, 2018, 12:03 pm

I think the suns sub-solar point should be passing over Trinidad today.

The subsolar point is where its sun is perceived to be directly overhead (in zenith); that is where the sun's rays are hitting the planet exactly perpendicular to its surface creating weird shadow effects

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Re: The official tropical weather thread 2018

Postby Duane 3NE 2NR » April 16th, 2018, 12:42 pm

^ hmm it was just raining heavily in Chaguanas and has been overcast all morning, no sunlight to check that.

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Re: The official tropical weather thread 2018

Postby TriP » April 16th, 2018, 5:56 pm

New Early Warning System Infographic
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Re: The official tropical weather thread 2018

Postby redmanjp » April 16th, 2018, 7:32 pm

So what alert would they give when they late & it done happen? :lol:

Met Office really go give alerts 48 hrs before?

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Re: The official tropical weather thread 2018

Postby streetbeastINC. » April 16th, 2018, 8:02 pm

Trini met office biggest joke......app might be funnier

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Re: The official tropical weather thread 2018

Postby aaron17 » April 17th, 2018, 11:53 am

I wonder if they predicted this rain now.

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Re: The official tropical weather thread 2018

Postby redmanjp » April 17th, 2018, 12:26 pm

I guess its only for hazardous weather as opposed to a little rain- then again even a 'little' rain should trigger a flash flood warning for South Quay :roll:

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Re: The official tropical weather thread 2018

Postby redmanjp » April 17th, 2018, 12:47 pm

they should have an Emergency Alert System like in the US to broadcast alerts via various mediums- it automaticallt breaks into tv/radio programming, unlike the TV station waiting hours to tell you a warning in effect

https://en.wikipedia.org/wiki/Emergency_Alert_System#Incidents

Emergency Alert System
From Wikipedia, the free encyclopedia

The Emergency Alert System (EAS) is a national warning system in the United States put into place on January 1, 1997 (approved by Federal Communications Commission (FCC) in November 1994),[1] when it replaced the Emergency Broadcast System (EBS), which in turn replaced the CONELRAD System. The official EAS is designed to enable the President of the United States to speak to the United States within 10 minutes.[2] In addition to this requirement, EAS is also designed to alert the public of local weather emergencies such as tornadoes and flash floods (and in some cases severe thunderstorms depending on the severity of the storm). The most recent National EAS Test was performed on September 27, 2017 at 2:20 pm EDT (11:20 am PDT).[3]

EAS is jointly coordinated by the Federal Emergency Management Agency (FEMA), the Federal Communications Commission (FCC) and the National Weather Service (NOAA/NWS). The EAS regulations and standards are governed by the Public Safety and Homeland Security Bureau of the FCC. EAS has become part of Integrated Public Alert and Warning System (IPAWS), a program of FEMA.

EAS messages are transmitted via AM, FM, broadcast television, cable television and Land Mobile Radio Service, as well as VHF, UHF, and FiOS (wireline video providers). Digital television, satellite television, and digital cable providers, along with Sirius XM satellite radio, IBOC, DAB, smart phones and digital radio broadcasters, have been required to participate in the EAS since December 31, 2006.[4] DirecTV, Dish Network, and all other DBS providers have been required to participate since May 31, 2007.

In 2008, the FCC began work on another system for public alerting designed and targeted at smartphones, meant to support the EAS. The Commercial Mobile Alert System (now Wireless Emergency Alerts) made its debut in about early 2013 in select states for select events. While this system functions independently from the Emergency Alert System, it may broadcast identical information.

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Re: The official tropical weather thread 2018

Postby sMASH » April 17th, 2018, 1:42 pm

why bai?

u dont find odpm updates while the storm going on is efficient enough?

i mean, last year, the only time they opted to issue a warning in good time before the event, the event didnt happen after all.

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Re: The official tropical weather thread 2018

Postby brickman » April 30th, 2018, 2:00 pm

Fack boi the heat these past 2 days fack!

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Re: The official tropical weather thread 2018

Postby V2NR 3.0 » April 30th, 2018, 2:11 pm

brickman wrote:Fack boi the heat these past 2 days fack!


Yup - it blistering !!! Like fire on your skin kinda vibes.

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Re: The official tropical weather thread 2018

Postby Duane 3NE 2NR » April 30th, 2018, 2:18 pm

Image

Feels Like was at 36°C!

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Re: The official tropical weather thread 2018

Postby redmanjp » April 30th, 2018, 4:08 pm

past few weeks hotter according to my internal temp monitor- from Jan to March the high inside the house was like 29C and low 25(no AC) but recently the high reaching 31-32C and the low at night not less than 27-28

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Re: The official tropical weather thread 2018

Postby Duane 3NE 2NR » April 30th, 2018, 4:41 pm

Yup it’s 30°C in my garage right now and it’s usually about 24-25

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Re: The official tropical weather thread 2018

Postby redmanjp » April 30th, 2018, 7:23 pm

I guess it's just seasonal. Usually from Christmas we get cooler nights for about 3 months and then is back to the heat

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Re: The official tropical weather thread 2018

Postby redmanjp » April 30th, 2018, 7:33 pm

sMASH wrote:why bai?

u dont find odpm updates while the storm going on is efficient enough?

i mean, last year, the only time they opted to issue a warning in good time before the event, the event didnt happen after all.


It supposed to be an EARLY warning system. Last year a Tropical Storm warning was issued by the Met Office 6pm the day before Bret, but there was nothing about it for about 15-18 hrs on local TV till the afternoon. The system in the US INTERUPTS all transmissions in some way. Now Bret wasn't a big deal for us if we only had a few hrs warning but what if it was a Irma or Maria?

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Re: The official tropical weather thread 2018

Postby brickman » May 6th, 2018, 2:26 pm

Heavy rain in p.o.s,feels good to not be roasting.

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Re: The official tropical weather thread 2018

Postby shake d livin wake d dead » May 9th, 2018, 6:16 am

Early start to rainy season?

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Re: The official tropical weather thread 2018

Postby urbandilema » May 9th, 2018, 6:17 am

shake d livin wake d dead wrote:Early start to rainy season?
Feel so I now got up to drop the wife to work and real rain in south side...

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Re: The official tropical weather thread 2018

Postby shake d livin wake d dead » May 9th, 2018, 6:19 am

Pitch black in the east

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Re: The official tropical weather thread 2018

Postby redmanjp » May 9th, 2018, 7:38 am

shake d livin wake d dead wrote:Pitch black in the east


Rain in Arima

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Re: The official tropical weather thread 2018

Postby Kronik » May 9th, 2018, 11:53 am

Rain in couva currently, place setup since morning

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