2010 and 2011 Tropical weather discussion

[Duane 3NE 2NR]

^ yup
http://www.trinituner.com/v3/forums/viewtopic.php?f=4&t=321441

[xtech]

Trinidad had Doppler radar now people............ very cool

install silverlight before you visit

http://metoffice.gov.tt/satellite_imagery/radar.aspx

Radar measurements is in dBZ

dBZ (meteorology)
From Wikipedia, the free encyclopedia
.


The scale of dBZ values can be seen along the bottom of the image.
dBZ stands for decibels of Z. It is a meteorological measure of equivalent reflectivity (Z) of a radar signal reflected off a remote object.[1] The reference level for Z is 1 mm6 m−3, which is equal to 1 μm3. It is related to the number of drops per unit volume and the sixth power of drop diameter.
Reflectivity of a cloud is dependent on the number and type of hydrometeors, which includes rain, snow, and hail, and the hydrometeors' size. A large number of small hydrometeors will reflect the same as one large hydrometeor. The signal returned to the radar will be equivalent in both situations, so a group of small hydrometeors is virtually indistinguishable from one large hydrometeor on the resulting radar image.
A meteorologist can determine the difference between one large hydrometeor and a group of small hydrometeors as well as the type of hydrometeor through knowledge of local weather condition contexts.

One dBZ-scale of rain:
40 heavy
24-39 moderate
8-23 light
0-8 Barely anything

[MISHI]

On that note, pretty small but intense patch of weather to our east. heavy heavy rain in Tobago at this moment and it's just the tip of the clouds. Assuming Trinidad will receive heavy rain/ thunderstorms soon enough.

[White CZ4A]

^just started here...heavy rains in san fernando

[xtech]

rain up in Chaguramas

[cinco]

real rain in chagauanas and barataria

[oxidation]

curepe seems to be the same

[Duane 3NE 2NR]

alot of thunder and lightning

[mitsu_chick941]

rain like WOW in town, white rain FTL

[kornbyrd]

Subject: Weather Forecast - Wilkens and Local Met Office - Fridy July 09, 2010

Good Morning All,

Wilkens weather states:

“A tropical wave near 53W south of 14N will continue westward today, entering the region later this evening. Fresh and strong winds as well as near rough seas are expected in association with this wave tomorrow. Moderate easterly trade winds will return late this weekend. Showers and thunderstorms will remain possible daily.”

Warning:

Scattered thunderstorms are expected during the next 48 hours. Wind gusts in excess of 35 knots, random higher seas, frequent lightning, heavy rainfall, and reduced visibility are possible in or near strong thunderstorms that develop.

Further,

CARIBBEAN SEA:
A tropical wave currently extends along 80W, from western Cuba south to Panama. This wave is progressing to the west at 5 knots. Scattered showers and thunderstorms continue offshore Colombia and Panama. Thunderstorms remain disorganized and tropical development is not expected.

A second tropical wave is along 62W, south of 15N. The wave is moving west at 5-10kts. Isolated showers and thunderstorms are associated with the wave and are affecting the Windward Islands and areas offshore much of Venezuela. These storms are not organized and tropical development is not currently expected.

ATLANTIC OCEAN:
A tropical wave noted near 53W, south of 15N, is progressing to the west around 10-15 knots. A cluster of showers and thunderstorms is noted ahead of the wave but remains disorganized and tropical development is not expected at this time.

A second tropical wave is currently located near 27W, south of 17N, moving west at 10-15 knots. Scattered showers and isolated thunderstorms in association with the wave are noted mainly in its wake. These storms are disorganized and tropical development is not currently expected.

Elsewhere, tropical cyclone formation is not expected through Sunday.

Local Met Data

ISSUED AT: 05:35AM

Date:Friday 09th of July 2010

Meteorologist: G. Benjamin

FOR THE PERIOD TODAY UNTIL MIDNIGHT:

TRINIDAD,TOBAGO AND THE Windward Islands

Variably cloudy with isolated showers and isolated thundershowers.

The Leeward Islands

Mostly fair with the isolated shower.



SEAS: Moderate occasionally Rough

WAVES: 2.5 to 3.0m IN OPEN WATERS

1.0m IN SHLTD AREAS

Temperature Units:Celsius

LAST NIGHT MIN. TEMP.

Piarco: 25 Crown Point: 26

FORECAST MAX. TEMP.

Piarco: 33 Crown Point: 31

Tides ISSUED AT: 05:31PM

Date:Thursday 08th of July 2010

Port of Spain HIGH 1:14am 2:55pm LOW 8:14am 7:44pm

Scarborough HIGH 12:50am 2:16pm LOW 8:03am 7:16pm

[Duane 3NE 2NR]

yup T&T MET office issued a bulletin this morning stating that over the next 4-6 hours T&T will experience heavy showers and thunder showers from the ITCZ

this is normal for this time of year but flooding may occur in areas so prone

Date: Friday 09th of July 2010
ISSUED AT:12:56PM

INTER-TROPICAL CONVERGENCE ZONE TO AFFECT WEATHER
CONDITIONS OVER TRINIDAD AND TOBAGO
Currently, Trinidad and Tobago is being affected
by the Inter-Tropical Convergence Zone which is
producing cloudy to overcast skies with some
isolated showers. Thundercloud development has
also been observed but these have been mainly
over water thus far.

The presence of the Inter-Tropical Convergence
Zone over our Islands will continue to trigger
atmospheric instability which could result in
episodes of heavy showers or thundershowers at
any time over the next 4 to 6 hours. These
showery or thundery spells could produce
street/flash flooding, gusty winds and inundation
of small river courses.

Citizens are advised to be vigilant and cautious
given the weather conditions, both current and
forecast, as they conduct their daily activities.
All necessary measures must be adopted to preserve
life and property. Be alert to any electrical
discharges from thundercloud activity.

WE WISH TO UNDERSCORE THAT AT THIS TIME TRINIDAD
AND TOBAGO IS NOT UNDER ANY TROPICAL STORM
THREAT, WATCH OR WARNING.

The Trinidad and Tobago Meteorological Service is
closely monitoring weather conditions and will
issue another bulletin if the situation warrants.

E. Sampson
Meteorologist

[Computerman]

this is normal for this time of year but flooding may occur in areas so prone

Looks like more rain over the next couple of days.

[JoKeR1980]

^yup...rell clouds on its way

[Duane 3NE 2NR]

expect rain tonight and tomorrow

[hustla_ambition101]

Yaaay rain

[xtech]

Hmmm..........passing cloud kinda thing

[Duane 3NE 2NR]

^ yeah for real

The hyper active hurricane season is turning out to be passive

[mitsu_chick941]

heard it have real rain in south now?


confirm?

[wagonrunner]

heard it have real rain in south now?

confirm?

nah. normal designer imposter business.

[hustla_ambition101]

seems like Haiti going to get blazed and the system dragging a very long tail

[mitsu_chick941]

this morning was one of those - i doh wanna go to work today mornings

[brickman]

Looks like we getting lunchtime/evening rain.

[Duane 3NE 2NR]

Plenty rain coming!

[brickman]

Setta damn drizzle,steups!

[Duane 3NE 2NR]

and there's Bonnie!

http://www.chron.com/disp/story.mpl/news/specials/hurricane/7120867.html

Tropical Storm Bonnie Predicted to Pass Over Gulf Oil Spill Site

Updated: Thursday, 22 Jul 2010, 9:17 PM EDT
Published : Thursday, 22 Jul 2010, 9:01 PM EDT

(NewsCore) - BP and U.S. government authorities were Thursday contemplating a full-scale evacuation of the Gulf of Mexico oil spill site after weather officials predicted Tropical Storm Bonnie would pass directly over the leaking well.



On Thursday the National Hurricane Center upgraded a tropical depression passing over the Bahamas to a tropical storm saying winds had strengthened to 40 miles per hour (65 kilometers per hour).

At 8:00pm the center released a prediction of the storm's path, which showed it passing over the site of the Macondo well 50 miles (80 kilometers) off the coast of Louisiana, where efforts have been continuing to contain an oil spill since the BP-leased Deepwater Horizon rig exploded April 20, killing 11 workers.

If it bears down on Louisiana it could push oil from the spill to the shore.

Louisiana Governor Bobby Jindal has declared a national emergency in the state and the Federal Emergency Management Agency (FEMA) announced it would continue to monitor the storm and was ready to support state, territory and local officials in the region.

Tropical Storm Bonnie was also expected to pass over the southern tip of Florida on Friday and a tropical storm warning was issued along parts of its each and west coasts.

The U.S. federal government began evacuating oil spill cleanup vessels from the Macondo well Thursday in advance of a storm hitting the Gulf of Mexico region.

Specialized boats were being moved out of the path of a tropical storm system currently over the Bahamas "to ensure that oil recovery operations can resume as soon as possible after a storm," according to a statement from the Obama administration's command center in New Orleans.

"We are prepared to leave the well unattended," National Incident Commander Thad Allen said.

He said BP employees and U.S. workers at the well site itself will remain in place until at least 8:00 pm Thursday, when a decision would be made on a full-scale evacuation.

If the well site is temporarily abandoned, workers will leave the cap in place that has stemmed the gushing oil for the past week.

Work on a permanent solution, however, will be delayed as rigs drilling relief wells at the site are shifted away from the area, Allen said.

BP has already evacuated all nonessential personnel from eight sites in the Gulf of Mexico in advance of the weather system, Fox Business Network reported.

[JoKeR1980]

some rain tom? sun rell hot today jed

[hustla_ambition101]

^^^hopefully, I need rain when I not working in the a/c part of my office

[Duane 3NE 2NR]

Bulletin#

Date: Tuesday 27th of July 2010
ISSUED AT:08:10AM

An active Tropical wave is interacting with the
Inter Tropical Convergence Zone and currently
producing periods of moderate to heavy showers
and thundershowers over the Southern Island
chain.

Trinidad and Tobago can expect these conditions to
persist for the next 8-12 hours. As a result,
gusty winds in excess of 50km/hr may be
experienced and street/flash flooding may occur
in areas so prone.

Citizens are advised to be vigilant and cautious
given these weather conditions as they conduct
their daily activities.

WE WISH TO UNDERSCORE THAT AT THIS TIME TRINIDAD
AND TOBAGO IS NOT UNDER ANY TROPICAL STORM
THREAT, WATCH OR WARNING.

The Trinidad and Tobago Meteorological Service is
closely monitoring weather conditions and will
issue another bulletin if the situation warrants.

O. Lovell
Meteorologist

[mitsu_chick941]

rain falling, real hard

[White CZ4A]

seeing some very very low dark clouds!
central area...place is very dark..