ATL: TROPICAL DEPRESSION BONNIE - DISCUSSION

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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1941 Postby Ivanhater » Thu Jul 22, 2010 2:51 pm

redfish1 wrote:i still think it is going to shoot through the strait


Just a reminder for you and everyone, let's not post one liners. If you post a comment where you think it is going elaborate and explain why so others are not reading chat room like commentary.
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1942 Postby AdamFirst » Thu Jul 22, 2010 2:51 pm

FLOOD WATCH
NATIONAL WEATHER SERVICE MIAMI FL
345 PM EDT THU JUL 22 2010

...FLOOD WATCH IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH FRIDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* FLOOD WATCH FOR A PORTION OF SOUTH FLORIDA...INCLUDING THE
FOLLOWING AREAS...COASTAL BROWARD...COASTAL COLLIER...COASTAL
MIAMI DADE...COASTAL PALM BEACH...FAR SOUTH MIAMI DADE...
GLADES...HENDRY...INLAND BROWARD...INLAND COLLIER...INLAND
MIAMI DADE...INLAND PALM BEACH...MAINLAND MONROE...METRO
BROWARD...METRO MIAMI DADE AND METRO PALM BEACH.

* FROM MIDNIGHT EDT TONIGHT THROUGH FRIDAY AFTERNOON

* TROPICAL DEPRESSION 3 AT 2 PM IS LOCATED ABOUT 425 NM SOUTHEAST
OF MIAMI. THIS TROPICAL SYSTEM WILL MOVE THROUGH THE KEYS ON
FRIDAY. EXPECTED RAINFALL TOTALS LATER TONIGHT THROUGH FRIDAY WILL
BE AROUND 2 TO 4 INCHES WITH ISOLATED AREAS UP TO 6 INCHES. THE
GROUNDS ARE NEAR SATURATION DUE TO THE RAINFALL ACCUMULATED
SINCE MAY. THERE IS SOME UNCERTAINTY IN THE TRACK AND INTENSITY,
AND THIS COULD CHANGE THE RAINFALL AMOUNTS ACROSS THE AREA.

* SOME STREET AND LOW LYING FLOODING CAN BE EXPECTED LATER
TONIGHT AND FRIDAY. THERE IS A POSSIBILITY FOR SIGNIFICANT
FLOODING WITH THE POSSIBILITY OF ROADS BECOMING IMPASSABLE AND
FLOOD WATERS ENTERING STRUCTURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1943 Postby Air Force Met » Thu Jul 22, 2010 2:54 pm

Ivanhater wrote:BTW, no model even goes due west, they go wnw which leads me to believe the ridge is nor oriented straight west, but I defer to AF :D


No model took Katrina WSW either...but...

Frankly....a lot will depend on what the ULL does. If it continues to impart southerly winds over the system...that will encourage the center to move more WNW. If it shifts to a more ESE shear...then look for it to move more westerly.
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1944 Postby thetruesms » Thu Jul 22, 2010 2:54 pm

Ivanhater wrote:BTW, no model even goes due west, they go wnw which leads me to believe the ridge is nor oriented straight west, but I defer to AF :D
Just off a quick glance, GFS, NAM, Euro, and RUC all have the ridge oriented similarly to AFM's analysis. It's over the weekend that the models have the ridge axis rotate to the way you described.
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1945 Postby Frank2 » Thu Jul 22, 2010 2:55 pm

They haven't been over the NE quad yet -- where the strongest winds usually are..


True, but since they've closed off the circulation that's what the advisory will be based on - with higher gusts possible, depending on what they find to the NE later in the flight...
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#1946 Postby eastcoastFL » Thu Jul 22, 2010 2:57 pm

Well I am in Boca right now and the wind is starting to pick up. Not sure if its from the ridge or from the approaching storm. Any suggestions?
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1947 Postby Ikester » Thu Jul 22, 2010 2:57 pm

A quick thought here...i noticed in the discussion this morning from the NHC, discussion #1, that they expect TD 3 to accelerate as it bumps into the strengthening ridge. I wonder if the same will hold true for the ULL and pull ahead of TD 3 far enough to quit sheering it so much. Thoughts?
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Re:

#1948 Postby AdamFirst » Thu Jul 22, 2010 2:57 pm

eastcoastFL wrote:Well I am in Boca right now and the wind is starting to pick up. Not sure if its from the ridge or from the approaching storm. Any suggestions?


It's likely still from the ridge. Though honestly I couldn't tell the difference :D
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1949 Postby Ivanhater » Thu Jul 22, 2010 2:57 pm

Air Force Met wrote:
Ivanhater wrote:BTW, no model even goes due west, they go wnw which leads me to believe the ridge is nor oriented straight west, but I defer to AF :D


No model took Katrina WSW either...but...

Frankly....a lot will depend on what the ULL does. If it continues to impart southerly winds over the system...that will encourage the center to move more WNW. If it shifts to a more ESE shear...then look for it to move more westerly.


Makes sense. We all know how hard it is to forecast an ULL. Interesting to see this play out.
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1950 Postby antonlsu » Thu Jul 22, 2010 3:00 pm

I am confused here AFM, are you looking for more of a westerly track?
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Re: Re:

#1951 Postby eastcoastFL » Thu Jul 22, 2010 3:00 pm

AdamFirst wrote:
eastcoastFL wrote:Well I am in Boca right now and the wind is starting to pick up. Not sure if its from the ridge or from the approaching storm. Any suggestions?


It's likely still from the ridge. Though honestly I couldn't tell the difference :D



i guess it will keep being windy until they are both gone. Just hoping for some action tonight and tommorow morning. CANT WAIT!~!!! :lol: :eek:
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1952 Postby hurricanefloyd5 » Thu Jul 22, 2010 3:01 pm

jim on his way to south florida for this storm
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1953 Postby tolakram » Thu Jul 22, 2010 3:03 pm

30 frame WV Loop: http://wwwghcc.msfc.nasa.gov/cgi-bin/ge ... mframes=30

ULL continues to race SW while TD3 remains almost stationary or relocates N/NW. Either way, the distance between TD3 and the ULL is increasing. Also note the moisture now being pulled from the SE of TD3 rather than the drier air from the SW.
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#1954 Postby eastcoastFL » Thu Jul 22, 2010 3:04 pm

weather channel must be really bored sending him down here for a friggin TD... :P
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1955 Postby fci » Thu Jul 22, 2010 3:05 pm

redfish1 wrote:i still think it is going to shoot through the strait


So do all of the consensus models
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Re:

#1956 Postby Tireman4 » Thu Jul 22, 2010 3:05 pm

eastcoastFL wrote:weather channel must be really bored sending him down here for a friggin TD... :P



I guess they ran out of movies to show. Well, it will certainly be an interesting weekend that is for sure.
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Re:

#1957 Postby Tireman4 » Thu Jul 22, 2010 3:05 pm

eastcoastFL wrote:weather channel must be really bored sending him down here for a friggin TD... :P



I guess they ran out of movies to show. Well, it will certainly be an interesting weekend that is for sure.
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Re: ATL: TROPICAL DEPRESSION THREE - DISCUSSION

#1958 Postby WeatherEmperor » Thu Jul 22, 2010 3:06 pm

Air Force Met wrote:
Ivanhater wrote:BTW, no model even goes due west, they go wnw which leads me to believe the ridge is nor oriented straight west, but I defer to AF :D


No model took Katrina WSW either...but...

Frankly....a lot will depend on what the ULL does. If it continues to impart southerly winds over the system...that will encourage the center to move more WNW. If it shifts to a more ESE shear...then look for it to move more westerly.


That is not entirely accurate. Right before Katrina made landfall in South Florida, the GFDL was for quite a while the only model showing a WSW motion. The others eventually picked up on it but for sure the GFDL picked up on it first.
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#1959 Postby Extremeweatherguy » Thu Jul 22, 2010 3:07 pm

As shown by the image I posted earlier, the effects of this system should be widespread across Florida. Here is the latest update from the NWS in Melbourne, FL...

FRI...TD 3 FORECAST TO PASS THROUGH THE FLORIDA STRAITS/SOUTHERN
TIP OF FLORIDA...POSSIBLY BECOMING A TROPICAL STORM...MAKING IT TO
THE SOUTHEASTERN GULF BY LATE IN THE DAY. MUCH HIGHER PRECIPITABLE
WATER VALUES WILL FILTER INTO THE AREA PROVIDING LIKELY POPS (60%)
SOUTH OF A LINE FROM KXMR-KMCO AND SCATTERED POPS (40%-50%)
NORTHWARD. GUSTY WINDS IN RAIN SQUALLS (30-40 MPH) AND LOCALLY
HEAVY RAINFALL WILL BE POSSIBLE AND ADDED INTO THE GRIDS/ZONES FOR
THIS DAY. A WIDESPREAD AREA OF 1-3" OF RAINFALL WILL BE POSSIBLE
WITH HEAVIEST AMOUNTS...ESPECIALLY SOUTH OF ORLANDO. LOCAL AMOUNTS
UP TO 4" FURTHER SOUTH ACROSS THE TREASURE COAST AND OKEECHOBEE
COUNTY ARE POSSIBLE.

DO NOT ANTICIPATE A FLOOD WATCH AS ALL OF EAST CENTRAL FLORIDA HAS
BEEN FAIRLY DRY THIS SUMMER AND MOST AREAS SHOULD BE ABLE TO
HANDLE SOME HEAVIER RAINFALL AMOUNTS. WHERE RAIN BECOMES MORE
PERSISTENT...THERE MAY BE SOME TEMPORARY NUISANCE PONDING. AT THE
MOMENT A VERY LOW END THREAT FOR AN ISOLD TORNADO EXISTS MAINLY
FROM THE CAPE SOUTHWARD. BREEZY CONDITIONS WILL BE FELT
(EAST/EAST-NORTHEAST AT 15-20 MPH) DURING THE DAY. CONSIDERABLE
CLOUDINESS TO MOSTLY CLOUDY SKIES CAN BE EXPECTED AREAWIDE WITH
ANY MORNING BREAKS OF SUN OVER NORTHERN INTERIOR SECTIONS IN THE
MORNING GIVING WAY TO MORE CLOUDS AS THE DAY WEARS ON.
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#1960 Postby Frank2 » Thu Jul 22, 2010 3:07 pm

One things for sure - it's moving pretty fast:

http://www.ssd.noaa.gov/goes/flt/t1/flash-vis.html

some thought it to be moving NW but it appears to be moving W and perhaps a few degrees south of that...

Frank
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