Archive for the ‘Florida Weather’ Tag

IRENE – SPAGHETTI CHART – 8-22-2011 NEAR MIDNIGHT EDT

THIS IS A TIME-SENSITIVE POSTING SUBMITTED 8-22-2011 AFTER 11 PM EASTERN TIME.

 

 

Hurricane Irene is now of GREAT CONCERN to the Bahamas.  Based upon my observation of the ECMWF (European Centre for Medium-Range Weather Forecasting) model  – it now looks as though South Carolina or North Carolina could be the landfall site though the statistical mean mid-line continues to “windshield-wiper” to the east.

Here is Jonathan Vigh’s spaghetti chart effort releases at 8 pm Eastern Daylight Time, 8-22-2011.  The numbers along the forecast model tracks are “hours from the forecast release time.” OFCL is the designation for “official.”  The OFCL is remarkably close to the ECMWF model track which does not show on this graphic.  To observe it, go to my “Tropical Weather” links to the right of this page and click on “Penn. State U. Models Page.”

THIS IS NOW A SERIOUS CAT. 2  HURRICANE WITH POTENTIAL FOR STRENGTHENING.

Graphic courtesy of Jonathan Vigh, Colorado State University

– LEFT CLICK THE GRAPHIC TWICE FOR MAXIMUM ENLARGEMENT –

Irene Is Now a Hurricane – 8-22-2011

PLEASE NOTE – THIS IS A TIME-SENSITIVE POSTING

Below is the 11 am (Eastern Daylight Time) cone of uncertainty for hurricane Irene from the National Hurricane Center.  Remember, only minor shifts toward the west or east can change the complexion of things drastically.  Such changes are common – in fact, some meteorologists refer to resultant realignments of the spreading cone as “windshield wipering.”  Left click the image twice for full enlargement.

LEFT CLICK TWICE FOR FULL ENLARGEMENT

IRENE – 8-21-2011 SPAGHETTI CHART

THIS IS A TIME-SENSITIVE POSTING SUBMITTED 8-21-2011 AFTER 11 PM EASTERN TIME.

IT IS NOW OUT OF DATE.  PLEASE CLICK ON THE BLOG TAB AT THE TOP LEFT OF THIS PAGE AND SCROLL DOWN TO LOOK FOR A MORE RECENT REPORT ON THIS STORM WHICH IS NOW A SERIOUS HURRICANE (posted 8-22-2011 near midnight EDT).

Invest (investigation) 97L (or 97AL) has become Tropical Storm Irene.  My concerns for Florida remain and it looks to me as though the east coast is the part of Florida most likely to be influenced by the system.  If it does skirt the coast at least that region will be subjected to the left-hand leading quadrant which is almost always less powerful than the right-hand leading quadrant.  Based upon my observation of the ECMWF (European Centre for Medium-Range Weather Forecasting) model  – it now looks as though South Carolina could very well be the landfall site.  Of course many changes can occur over the next few days and much depends upon the movement and strength of a trough dipping down over the Eastern U.S.A.  One of my favorite sources, Dr. Jeff Masters wrote yesterday:

“The best model for predicting the timing and strength of such troughs over the past two years has been the ECMWF (European Center model).  The European Center does not permit public display of tropical storm positions from their hurricane tracking module of their model, so we are unable to put ECMWF forecasts on our computer model forecast page that plots positions from the other major models.  Remember that a 7-day forecast by even our best model will be off by an average of over 700 miles, so it is too early to tell what part of the U.S. might be most at risk from a strike by 97L. This weekend would be a good time to go over your hurricane preparation.”

In the future, if you wish to view the ECMWF model loops go to the right of this page and under the heading of  “Tropical Weather” click on the link to Penn. State U. Models Page.  Scroll down until you find it.

Here is Jonathan Vigh’s spaghetti chart effort releases at 8 pm Eastern Time, 8-21-2011.

TWO LEFT CLICKS WILL ENLARGE THIS FULLY FOR YOU

97AL – Tropical System May Become a Threat to Florida

THIS IS A TIME-SENSITIVE POSTING SUBMITTED 8-20-2011 LATE MORNING EASTERN TIME.

Though there is more than one system out there today, my attention is east of the Lesser Antilles Islands where there is a system that currently has the status of a tropical wave.  However, there is an 80% chance that it will become cyclonic within the next 48 hours.  The Spaghetti chart below is courtesy of Jonathan Vigh.  His efforts to put the model forecasts together produce my favorite renditions.  Notice that the islands between its present location and Florida will be effected if this early visual is close to being correct.  The storms ability to sustain itself as it moves over land might be touch and go.  Frankly, this one really has my attention.

If you left click the image should enlarge – a second left click might enlarge it even further:

TROPICAL SYSTEM 91L. A 5 DAY PLUS FORECAST BY THE GFDL MODEL.

THANKS TO PENN STATE UNIVERSITY DEPARTMENT OF METEOROLOGY FOR THIS GRAPHIC.

 Left clicks on this graphic should enlarge it for you.

THIS IS A TIME-SENSITIVE POSTING SUBMITTED 7-30-2011 LATE EVENING.

This is the GFDL model’s forecast for system 91L 126 hours from the 2 PM Eastern time release (today 7-30-2011).  Note that it is shown to be north of Eastern Cuba.  I calculate the forecast time to be 5.25 days (or 5 days and 6 hours) beyond the release time.  That would be Thursday, August 4 at 8 PM Eastern time.  This, of course is a forecast loaded with unknowns and fickle variables so one should not consider it a “given.”  The GFDL model (Geophysical Fluid Dynamics Laboratory) has impressed me over the last few years.  I’m posting this now so that perhaps on Thursday night you might want to check to see how close it is.  This posting is not intended to alarm anyone needlessly.  If you are in a position where you like to plan ahead and are potentially in the path of tropical systems from the Atlantic and Gulf of Mexico, I advise you to pay close attention to forecasts available to you.  It is my opinion that the Weather Channel on television does a great job covering tropical weather and I highly recommend it as a source.   Also, on the right hand margin of this page under Miscellaneous/Other you will find a link to the on-line Weather Channel.  I also highly recommend the tropical weather blog of Dr. Jeff Masters.  Here is a link:  http://www.wunderground.com/blog/JeffMasters/article.html

Forecast Model Plots for Our First Tropical System of the Season – 2011

Here is the forecast plot for our first tropical disturbance of the season – released at 1200 Greenwich Time (7AM Eastern Time) June 1, 2011 – the first official day of the season.  These are sometimes called spaghetti charts.  Please ignore the “straight line” projection into the Gulf which is an extrapolation of movement were there to be no change in course.  Already, I’ve detected rightward deflection in its actual track.  Two left clicks should fully enlarge this image for you.

Click on Image to Enlarge

DAY ONE OF HURRICANE SEASON IS INTERESTING!

Below is a “cut and paste” from the National Hurricane Center’s report for the first day of the hurricane season, 2011.  There is a low pressure system in the Atlantic now making a beeline for my part of Florida and expected to be here around 1 PM.  Item 1 below is the discussion of that system.  At the very end of this posting you will find a link to the page from which this information was cut.  If the graphic you first see is not the satellite image, just left click on it and it should change for you.

My daughter is visiting from New Mexico and this is the day that she and I were to have gone sailing.  However – that activity has been canceled and my “little girl” is sleeping in.  There was a time in my life when I was more daring and would have gone out anyway – working hard to strategically find safe shelter and counting on lots of luck.  But now in my 72nd year I am one to err on the side a caution.  The aluminum mast supported by a steel fore-stay and two steel shrouds all serve as excellent lightning attractors.  I do not wish for my daughter (or myself for that matter) to become a “crispy critter.”  The fun is not worth the risks.  So we will find something else to do.  The tiny red dot on the image below approximates where I live in Florida and the system is traveling toward the west-southwest.  Left click on the image to enlarge.

From my point of view, this is a fitting “sign” that our hurricane season this year is likely to be a busy one.  The post that follows this one will link you to a description of the NOAA summary of this years forecast.

Left Click To Enlarge

 
ZCZC MIATWOAT ALL
TTAA00 KNHC DDHHMM

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
800 AM EDT WED JUN 1 2011

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

1. A SMALL AREA OF LOW PRESSURE LOCATED ABOUT 200 MILES EAST OF
JACKSONVILLE FLORIDA IS MOVING WEST-SOUTHWESTWARD AT AROUND 20 MPH. 
THE LOW CONTINUES TO PRODUCE A CONCENTRATED AREA OF SHOWERS AND
THUNDERSTORMS...AND ENVIRONMENTAL CONDITIONS ARE MARGINALLY
FAVORABLE FOR SOME DEVELOPMENT OF THIS SYSTEM BEFORE IT MOVES OVER
NORTHERN FLORIDA LATER TODAY. REGARDLESS OF DEVELOPMENT...THIS
DISTURBANCE COULD PRODUCE LOCALLY HEAVY RAINFALL AND STRONG GUSTY
WINDS OVER PORTIONS OF THE FLORIDA PENINSULA. THERE IS A MEDIUM
CHANCE...30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE
DURING THE NEXT 48 HOURS. FOR ADDITIONAL INFORMATION ON THIS
SYSTEM...PLEASE SEE PRODUCTS FROM YOUR LOCAL NATIONAL WEATHER
SERVICE OFFICE. 

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.

TODAY MARKS THE FIRST DAY OF THE ATLANTIC HURRICANE SEASON...WHICH
WILL RUN UNTIL NOVEMBER 30. LONG-TERM AVERAGES FOR THE NUMBER OF
NAMED STORMS...HURRICANES...AND MAJOR HURRICANES ARE 11...6...AND
2...RESPECTIVELY.

THE LIST OF NAMES FOR 2011 IS AS FOLLOWS:

NAME PRONUNCIATION NAME PRONUNCIATION
-------------------------------------------------------------
ARLENE AR LEEN- LEE LEE
BRET BRET MARIA MUH REE- UH
CINDY SIN- DEE NATE NAIT
DON DAHN OPHELIA O FEEL- YA
EMILY EH- MIH LEE PHILIPPE FEE LEEP-
FRANKLIN FRANK- LIN RINA REE- NUH
GERT GERT SEAN SHAWN
HARVEY HAR- VEE TAMMY TAM- EE
IRENE EYE REEN- VINCE VINSS
JOSE HO ZAY- WHITNEY WHIT- NEE
KATIA KA TEE- AH

THIS PRODUCT...THE TROPICAL WEATHER OUTLOOK...BRIEFLY DESCRIBES
SIGNIFICANT AREAS OF DISTURBED WEATHER AND THEIR POTENTIAL FOR
TROPICAL CYCLONE FORMATION DURING THE NEXT 48 HOURS. THE ISSUANCE
TIMES OF THIS PRODUCT ARE 2 AM...8 AM...2 PM...AND 8 PM EDT. 
AFTER THE CHANGE TO STANDARD TIME IN NOVEMBER...THE ISSUANCE TIMES
ARE 1 AM...7 AM...1 PM...AND 7 PM EST.

A SPECIAL TROPICAL WEATHER OUTLOOK WILL BE ISSUED TO PROVIDE UPDATES
...AS NECESSARY...IN BETWEEN THE REGULARLY SCHEDULED ISSUANCES OF
THE TROPICAL WEATHER OUTLOOK. SPECIAL TROPICAL WEATHER OUTLOOKS
WILL BE ISSUED UNDER THE SAME WMO AND AWIPS HEADERS AS THE REGULAR
TROPICAL WEATHER OUTLOOKS.

A STANDARD PACKAGE OF PRODUCTS...CONSISTING OF THE TROPICAL CYCLONE
PUBLIC ADVISORY...THE FORECAST/ADVISORY...THE CYCLONE DISCUSSION...
AND A WIND SPEED PROBABILITY PRODUCT...IS ISSUED EVERY SIX HOURS
FOR ALL ONGOING TROPICAL CYCLONES. IN ADDITION...A SPECIAL ADVISORY
PACKAGE MAY BE ISSUED AT ANY TIME TO ADVISE OF SIGNIFICANT
UNEXPECTED CHANGES OR TO MODIFY WATCHES OR WARNINGS.

THE TROPICAL CYCLONE UPDATE IS A BRIEF STATEMENT TO INFORM OF
SIGNIFICANT CHANGES IN A TROPICAL CYCLONE OR TO POST OR CANCEL
WATCHES OR WARNINGS. IT IS USED IN LIEU OF OR TO PRECEDE THE
ISSUANCE OF A SPECIAL ADVISORY PACKAGE. TROPICAL CYCLONE UPDATES
...WHICH CAN BE ISSUED AT ANY TIME...CAN BE FOUND UNDER WMO HEADER
WTNT61-65 KNHC...AND UNDER AWIPS HEADER MIATCUAT1-5.

ALL NATIONAL HURRICANE CENTER TEXT AND GRAPHICAL PRODUCTS ARE
AVAILABLE ON THE WEB AT WWW.HURRICANES.GOV. SIGN UP FOR PRODUCT
UPDATES BY EMAIL AT WWW.HURRICANES.GOV/SIGNUP.SHTML...IN ALL LOWER
CASE. YOU CAN ALSO INTERACT WITH US ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NOAA.NATIONALHURRICANECENTER.GOV.

$$
FORECASTER BERG/PASCH
NNNN

Here is a link to the National Hurricane Center Home Page: http://www.nhc.noaa.gov/gtwo_atl.shtml  

NICOLE EXPECTED TO BE “EASY” ON MOST OF FLORIDA

Left click image twice to fully enlarge

Having a daughter and two grandsons living not far south of Jacksonville, I have been somewhat concerned about the current tropical weather.  A few days ago the GFDL model showed the Jacksonville area getting tropical storm winds from Nicole but that is no longer in the forecast.  However, interestingly, this morning’s GFDL model shows another storm moving along almost the same track as Nicole off to the east of Miami 5 days from now!  We shall see.

In the U.S. Navy plot above, the two nearly identical figures that look like oddly altered letter D’s represent the 34 knot line.  In other words, sustained wind velocities outside of those figures are expected to be less than 34 knots (nautical miles per hour).

Yours Truly,

Tonie Toney

TODAY’S TROPICAL ACTIVITY IN THE ATLANTIC 8-24-2010

Though this is probably not news to you – as predicted in the previous posting – activity is picking up out there.  That should be no surprise considering the time of the year.  Once again, I urge you to be prepared for the eventualities of tropical weather if you live in hurricane country.   Having experienced the destruction and aftermath of hurricane Andrew, I can assure you that it doesn’t always happen to “the other guy (or gal)!”

In my family we find that no matter what plans we make – we must not be surprised or angry or disappointed if Mother Nature decides to inconvenience us.  In my opinion it is important to take one day at a time while doing our best to enjoy life and to be of service to others.

Please count on having to be self-sufficient for a while if a damaging/disruptive storm should come through.  When the little things we take for granted are taken away – our lives can suddenly undergo a drastic change.  For example, after Andrew we had no electricity for over 6 weeks.  In spite of the fact that the majority of people who came down to Homestead to help our community were wonderful and extremely well-intentioned – there were some real opportunists too.  A case in point: Generators were trucked down and sold from the back of the trailers for more than 5 times their suggested retail price – cash only – on the line!  The 25′ travel trailer I bought to live in (our house was a total loss) cost $12,995 in our part of Florida before the storm and $17,995 after the storm.  The good news is that my son-in-law found the same model for me from the dealer in Knoxville who sold it to us for $10,000 – and that included delivering it to my driveway in Homestead and showing me the ropes on how to operate the things I knew nothing about.  He and his wife told us that when watching television in the comfort of their home they had been hoping that something would come up where they could be of significant help to a family.  What special people they are!

Only one window was broken by the storm in our home and that was merely a crack.  Why?  We had them all protected with storm shutters.  But – the roof failed!  The shutters don’t protect the contents of a house when the roof comes off – LOL.

A friend of mine who worked at Turkey Point Nuclear Power Plant had quit drinking a couple of years prior to hurricane Andrew.  When I saw him a few days after the storm he told me how happy he was that he had quit because had he been drinking he would have merely sat in his recliner with a bottle (or bottles) and tried to ride out the storm in some state of oblivion.  He said that the storm had moved that recliner 8 yards from its spot in his family room.  I thought to myself, “8 yards – 24 feet – sure – I can visualize that happening – easily.  After all – his family room was the biggest room in the house.  BUT – what he meant was 8 “yards!”  Yes – the chair had been repositioned 8 houses down the street coming to rest in someone else’s back yard.

Atlantic Hurricane Season – Please Be Alert – 8-19-2010

We are entering the peak of the Atlantic hurricane season.  If you have not been influence by tropical activity thus far this year you might be under the impression that it’s an inactive season.  That would not be true.  Statistically, it has been about average to date. Though we cannot “plan the future” I feel strongly that we should plan “FOR” certain eventualities in the future.  I urge you to be prepared and alert in the event that a tropical system comes your way.

The following statement in “blue” was taken Verbatim Thursday morning (8-19-2010) from the Dr. Jeff Masters web-log found at http://www.wunderground.com/tropical/.

“The GFS, NOGAPS, and ECMWF models continue to predict that a tropical storm will form between Africa and the Lesser Antilles Islands sometime in the period 3 – 6 days from now. There is an area of disturbed weather south of the Cape Verdes Islands, but there is no obvious organization to the cloud pattern. Wind shear is a hefty 20 – 30 knots in the region, and the disturbance is a 1 – 2 day journey away from reaching a lower shear area where development can occur. Preliminary indications are that if a storm did develop in this region, it would track west-northwest and pass well to the northeast of the Lesser Antilles Islands 7 – 8 days from now. However, 7-day forecasts of a storm that hasn’t even formed yet are not to be trusted.”

I have taken the liberty of trimming the latest full disc color satellite image down to a manageable size where you can still easily find Florida and thus look across the Atlantic to see the area of disturbed weather off Africa to which Dr. Masters refers. Two independent left clicks on this image will enlarge it fully. This image was taken from a distance over three earth diameters away from the surface yet there is considerable detail.  I hope you enjoy it.