Isaac reorganizing as it blows through the Lesser Antilles

By: Dr. Jeff Masters , 8:34 PM GMT on August 22, 2012

Share this Blog
56
+

Tropical Storm Isaac continues to maintain top winds of just 45 mph as its center prepares to move through the Lesser Antilles islands late this afternoon and early this evening. The entire Lesser Antilles chain of islands is receiving heavy rains from Isaac, with Martinique picking up 1.46" of rain as of 2 pm EDT, and St. Lucia receiving 1.49". However, Isaac is not yet generating much in the way of tropical storm-force winds, and none of the islands had received winds in excess of 30 mph as of 4 pm EDT. During their storm penetration to obtain their 2 pm EDT center fix, an Air Force Reserve aircraft measured top surface winds of just 40 mph, and a central pressure of 1004 mb. Top winds at their 5000 foot flight altitude were 49 mph. Isaac is undergoing significant changes to its structure. The plane found the center had become a broad, elongated oval that extended 40 miles from NW to SE. The old center, fixed at 2 pm near 16.1°N, and closer to the dry air to Isaac's north, is being challenged for dominance by a new center that is attempting to form near a burst of heavy thunderstorms at 15.5°N. The Hurricane Hunters' latest fix at 3:50 pm EDT put the center near 15.9°N, a southwards shift of about 17 miles. The resulting battle between centers is giving Isaac a rather odd spiral rectangular shape, as seen on visible satellite loops. The Hurricane Hunters did not observe an eyewall trying to form, and recent microwave satellite images also show no signs of an eyewall forming. A large area of dry air to the north of the storm, as seen on water vapor satellite loops, continues to interfere with development, and Isaac will not be able to begin strengthening until it resolves the battle between it two competing centers, and casts out the dry air infiltrating it. This is going to take at least a day, since Isaac is a very large storm, and it takes more time to spin up a big chunk of the atmosphere. Radar imagery from Barbados and Martinique show plenty of heavy rain showers, mostly on the south side of Isaac where it is moister. There has been a modest increase in spiral banding since this morning.


Figure 1. Afternoon satellite image of Isaac, showing its odd spiral rectangle shape.

Latest model runs for Isaac
The latest set of 12Z (8 am EDT) model runs are very similar to the previous set of runs, which I discussed in detail in this morning's post. The models show a westward track to a point on the south coast of Hispaniola. Isaac's center shift to the south may require some modest adjustments to the south and west for the models. This would result in the storm spending a few hours less time over Hispaniola, and more time over or just south of Cuba. This would slightly decrease the risk to the Dominican Republic, the east coast of Florida, and the Bahamas, but increase the risk to the west coast of Florida. The ECMWF--our best performing model over the past two years--continues to be an outlier among the models. It predicts that Isaac will track just south of Cuba, cross the western tip of Cuba on Monday, then head north towards an eventual landfall in Louisiana. However, this model is keeping Isaac weaker than the other models, and thus predicts the storm will have a weaker response to the trough of low pressure over the Southeast U.S. If the official NHC intensity forecast is right and Isaac becomes a hurricane on Thursday, the more southerly track of the ECMWF is not going to verify, and Isaac will spend considerable time over Cuba on Saturday and Sunday. Where Isaac pops off the coast of Cuba will be critical in determining its future path and intensity, and at this point, we don't know it its more likely that Isaac will go up the east coast of Florida, the west coast, or straight up the peninsula over land. At this point, I'd put the odds at:

40% chance of a track through the Gulf of Mexico, west of Florida
25% chance of a landfall in South Florida, and a track mostly over the Florida Peninsula
35% chance of a track along the east coast of Florida

Which model should you trust?
Wunderground provides a web page with computer model forecasts for many of the best-performing models used to predict hurricane tracks. So which is the best? The best forecasts are made by combining the forecasts from three or more models into a "consensus" forecast. Over the past decade, NHC has greatly improved their forecasts by relying on consensus forecast models made using various combinations of the GFS, GFDL, NOGAPS, UKMET, HWRF, and ECMWF models. If you average together the track forecasts from these models, the NHC official forecast will rarely depart much from it, and the NHC forecast has been hard to beat over the past few years. The single best-performing model over the past two years has been the ECMWF (European Center model). The GFS model has been a close second. You can view 7-day ECMWF and 16-day GFS forecasts on our wundermap with the model layer turned on. Ten-day ECMWF forecasts are available from the ECMWF web site. 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. As seen in Figure 2, the HWRF and GFDL were well behind the ECMWF and GFS in forecast accuracy in 2011, but were still respectable. The BAMM model did very well at 4 and 5-day forecasts. The UKMET, NOGAPS, and CMC models did quite poorly compared to the ECMWF, GFS, GFDL, and HWRF. For those interested in learning more about the models, NOAA has a great training video (updated for 2011.)


Figure 2. Skill of computer model forecasts of Atlantic named storms 2011, compared to a "no skill" model called "CLIPER5" that uses just climatology and persistence to make a hurricane track forecast (persistence=a storm will tend to keep going in the direction it's current going.) OFCL=Official NHC forecast; GFS=Global Forecast System model; GFDL=Geophysical Fluid Dynamic Laboratory model; HWRF=Hurricane Weather Research Forecasting model; NOGAPS=Navy Operational Global Prediction System model; UKMET=United Kingdom Met Office model; ECMWF=European Center for Medium Range Weather Forecasting model; TVCA=one of the consensus models that lends together several of the above models; CMC=Canadian Meteorological Center (GEM) model; BAMM=Beta Advection Model (Medium depth.) Image credit: National Hurricane Center 2011 verification report.

I'll have a new post in the morning.

Jeff Masters

Reader Comments

Comments will take a few seconds to appear.

Post Your Comments

Please sign in to post comments.

or Join

Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.

Display: 0, 50, 100, 200 Sort: Newest First - Order Posted

Viewing: 3501 - 3451

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90Blog Index

Quoting southernbell72:
The weather channel said Isaac should be a cat 1 by the time it moves past Haiti. Poor ppl.


Member Since: September 30, 2007 Posts: 9 Comments: 15940
Haiti. may get vary lucky with this storm if it keeps moveing W today it will likey by pass Haiti well too the S
Member Since: May 21, 2006 Posts: 5091 Comments: 115252
3498. Hhunter
If the more western path were to occur we would have a monster storm in size and strength. Going over some of these easist topography and hotest water included the bath tub warm loop current.. Nightmare for LA, Miss and alabama
Member Since: Posts: Comments:
3497. LargoFl
OMG..is this radar true?..it has to be a mistake..right?
Member Since: August 6, 2011 Posts: 4 Comments: 39648
Mid level circulation is at about 14.5N and 66.5W.


LLC is moving in that direction.

Whatever they were tracking earlier was probably just some dry air between bands, as it's ridiculous how strong the rotation signature is on PR radar to the SW of the official fix.
Member Since: January 25, 2012 Posts: 33 Comments: 1520
BULLETIN
TROPICAL STORM ISAAC INTERMEDIATE ADVISORY NUMBER 9A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
800 AM AST THU AUG 23 2012

...ISSAC MOVING WESTWARD THROUGH THE EASTERN CARIBBEAN SEA...


SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...15.4N 64.8W
ABOUT 225 MI...360 KM SSE OF SAN JUAN PUERTO RICO
ABOUT 315 MI...505 KM ESE OF ISLA SAONA DOMINICAN REPUBLIC
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 13 MPH...21 KM/H
MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES
Member Since: Posts: Comments:
Quoting Jedkins01:
Isaac might just degenerate into a remnant low, I don't think it will, but it's possible, I would love to see some reaction of anger because it isn't going to destroy their region :)



??? Totally weird statement
Member Since: Posts: Comments:
Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 23rd day of the month at 11:45Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 307)
Storm Number & Year: 09L in 2012
Storm Name: Isaac (flight in the North Atlantic basin)
Mission Number: 5
Observation Number: 13
A. Time of Center Fix: 23rd day of the month at 11:21:40Z
B. Center Fix Coordinates: 15°24'N 64°37'W (15.4N 64.6167W)B. Center Fix Location: 229 miles (369 km) to the SSE (155°) from San Juan, Puerto Rico (USA).
C. Minimum Height at Standard Level: 1,466m (4,810ft) at 850mb
D. Estimated (by SFMR or visually) Maximum Surface Wind: 26kts (~ 29.9mph)
E. Location of the Estimated Maximum Surface Wind: 46 nautical miles (53 statute miles) to the NW (324°) of center fix
F. Maximum Flight Level Wind Inbound: From 67° at 36kts (From the ENE at ~ 41.4mph)
G. Location of Maximum Flight Level Wind Inbound: 54 nautical miles (62 statute miles) to the NNW (333°) of center fix
H. Minimum Sea Level Pressure: 1003mb (29.62 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 19°C (66°F) at a pressure alt. of 1,518m (4,980ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 18°C (64°F) at a pressure alt. of 1,523m (4,997ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 17°C (63°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Not Available
M. Eye Shape: Not Available
N. Fix Determined By: Penetration, Wind and Pressure
N. Fix Level: 850mb
O. Navigation Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 10 nautical miles
Remarks Section - Remarks That Were Decoded...
Maximum Wind Outbound: 37kts (~ 42.6mph) in the north quadrant at 11:37:00Z
Maximum Flight Level Wind: 37kts (~ 42.6mph) in the north quadrant at 11:37:00Z
Maximum Flight Level Temp: 19°C (66°F) which was observed 47 nautical miles (54 statute miles) to the NW (325°) from the flight level center
Member Since: July 14, 2006 Posts: 0 Comments: 1163
Quoting StormTracker2K:
GGEM model. Can't be ruled out also.

This is True, strong high pressure over Texas means more 100's for me, I hate 100's for Temps, LOL come on first real cold front of the year. The high being there would also protect New Orleans.
Member Since: Posts: Comments:
The weather channel said Isaac should be a cat 1 by the time it moves past Haiti. Poor ppl.
Member Since: Posts: Comments:
Quoting GetReal:


There is a core of white (extremely cold cloud tops) near where I believe the dominant center is going to be found.
MLC looks like it wants to become the dominant center which would be better for the storm.
Member Since: Posts: Comments:
Quoting TampaFLUSA:
Largo where do you see the ecmwf going through the Yucatan?

Yeah,,, I don't see it.

Member Since: September 30, 2007 Posts: 9 Comments: 15940
3486. Hhunter
Quoting CajunCrawfishhunter:
Guys and Ladies. How close do we need to watch the storm over here in Louisiana?
moderately, most of the good forecasters have you in the cone of possibility on the west side of possible track.
Member Since: Posts: Comments:
This will be the biggest concern as Issac moves up the West FL coast. Flooding rains and tornadoes.

Member Since: Posts: Comments:
anyone think ten would become Joyce today?
Member Since: Posts: Comments:
3483. Chiggy
I am working for home today and tomorrow - I suspect Issac probably won't let me do any work lol
Member Since: Posts: Comments:
VDM

Link
Member Since: Posts: Comments:
Quoting DestinDave:
Its not moving at 12mph!!!! NHC TYPO!
19 KM/H
is about 11.8 mph...unless they converted the KMH based on the error. I don't see that storm slowing down that much. Also, they may have taking into account the change of direction with the new location of its center.
Member Since: Posts: Comments:
Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 23rd day of the month at 11:45Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 307)
Storm Number & Year: 09L in 2012
Storm Name: Isaac (flight in the North Atlantic basin)
Mission Number: 5
Observation Number: 13
A. Time of Center Fix: 23rd day of the month at 11:21:40Z
B. Center Fix Coordinates: 15°24'N 64°37'W (15.4N 64.6167W)
B. Center Fix Location: 229 miles (369 km) to the SSE (155°) from San Juan, Puerto Rico (USA).
C. Minimum Height at Standard Level: 1,466m (4,810ft) at 850mb
D. Estimated (by SFMR or visually) Maximum Surface Wind: 26kts (~ 29.9mph)
E. Location of the Estimated Maximum Surface Wind: 46 nautical miles (53 statute miles) to the NW (324°) of center fix
F. Maximum Flight Level Wind Inbound: From 67° at 36kts (From the ENE at ~ 41.4mph)
G. Location of Maximum Flight Level Wind Inbound: 54 nautical miles (62 statute miles) to the NNW (333°) of center fix
H. Minimum Sea Level Pressure: 1003mb (29.62 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 19°C (66°F) at a pressure alt. of 1,518m (4,980ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 18°C (64°F) at a pressure alt. of 1,523m (4,997ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 17°C (63°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Not Available
M. Eye Shape: Not Available
N. Fix Determined By: Penetration, Wind and Pressure
N. Fix Level: 850mb
O. Navigation Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 10 nautical miles
Remarks Section - Remarks That Were Decoded...
Maximum Wind Outbound: 37kts (~ 42.6mph) in the north quadrant at 11:37:00Z
Maximum Flight Level Wind: 37kts (~ 42.6mph) in the north quadrant at 11:37:00Z
Maximum Flight Level Temp: 19°C (66°F) which was observed 47 nautical miles (54 statute miles) to the NW (325°) from the flight level center
Remarks Section - Additional Remarks...
RAIN CONTAMINATED SFMR
Member Since: May 21, 2006 Posts: 5091 Comments: 115252
3479. GetReal
Member Since: Posts: Comments:
Quoting CajunCrawfishhunter:
Guys and Ladies. How close do we need to watch the storm over here in Louisiana?
Southeastern La. needs to watch Isaac closely IMO, he could go that far west? I would be more concerned along the Florida panhandle.
Member Since: Posts: Comments:
Imagine if Isaac pass over the Cayman islands.you know what will happen it if verifies or portraits.
Member Since: Posts: Comments:
Quoting weatherh98:


Every storm moves isobars around
Yes that is true, there is a weakness there, the storm is just not strong enough and not aligned to feel it as of right now.
Member Since: Posts: Comments:
Isaac looking much healthier and it's now obvious where the COC is (under the heaviest of convection). It will be interesting to see if he starts to strengthen as storms have struggled to get going in the Caribbean for the last couple of years. If he doesn't strengthen to at least a 65mph storm by tonight I think New Orleans may come into play as an eventual landfall.
Member Since: Posts: Comments:
GGEM model. Can't be ruled out also.

Member Since: Posts: Comments:
Largo where do you see the ecmwf going through the Yucatan?
Member Since: Posts: Comments:
3471. GetReal


There is a core of white (extremely cold cloud tops) near where I believe the dominant center is going to be found.
Member Since: Posts: Comments:
Quoting air360:
I Can.Not.Wait until they get that G-IV data in the models this afternoon...and the data from all the stations that will be launching balloons.

Only then will we really be able to get an idea of where this is really going.

I know the setup is not exactly the same but I can not help but think back to Irene who had a very similar track and then had the major shift east once they added the extra info and data into the models. People then were set on it doing one thing and then bam - all new track.

Only time will tell...but the extra data sure will help.
I am for one glad they are sampling the Upper Air Environment, expecially around the Bahamas because I want to know how strong the Ridge is there and if the weakness will open up even more in the coming days there or will it close.
Member Since: Posts: Comments:
Spiral banding now developing one the NE side.
Member Since: July 8, 2005 Posts: 259 Comments: 24246
Quoting StormTracker2K:


Looks much better today TA13. I expect hurricane Issac sometime tonight.


Depends on the recon. If the find a 55-65 mph winds then ya but 50 may not be enough as this is a massive storm
Member Since: Posts: Comments:
3467. LargoFl

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS: SCATTERED THUNDERSTORMS WILL BE POSSIBLE ACROSS
THE INTERIOR THIS AFTERNOON AND EVENING. FREQUENT LIGHTNING
STRIKES...STRONG WIND GUSTS AND HEAVY RAINFALL WILL BE THE MAIN
IMPACTS FROM ANY STRONG THUNDERSTORMS THAT DEVELOP.

WIND: STRONG WIND GUSTS FROM 35 TO 50 MPH WILL BE POSSIBLE IN THE
STRONGEST THUNDERSTORMS OVER THE INTERIOR TODAY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

TROPICAL STORM ISAAC...CURRENTLY CENTERED SOUTH OF PUERTO
RICO...IS FORECAST BY THE NATIONAL HURRICANE CENTER TO MOVE ON A
GENERAL WESTWARD TRACK TODAY...THEN EVENTUALLY TURNING NORTHWEST
OVER THE WEEKEND IN THE GENERAL DIRECTION OF FLORIDA. THERE IS
UNCERTAINTY WITH REGARDS TO THE EXACT TRACK AND INTENSITY OF ISAAC
AND AS TO WHETHER OR NOT ISAAC WILL HAVE DIRECT IMPACTS ON THE
AREA. ALL INTERESTS ARE ENCOURAGED TO CONTINUE TO MONITOR THE
LATEST FORECAST OVER THE UPCOMING DAYS AS CONFIDENCE STEADILY
INCREASES. AS IT STANDS NOW...ISAAC IS FORECAST TO MAKE ITS
CLOSEST POINT OF APPROACH SUNDAY EVENING THROUGH MONDAY MORNING TO
EXTREME SOUTH AND SOUTHWEST FLORIDA. IF YOU HAVE NOT DONE SO
ALREADY...INTERESTS ARE ENCOURAGED TO BEGIN PREPARING THROUGH
SATURDAY. VISIT WWW.READY.GOV FOR DETAILED PREPAREDNESS PLANS AND
INFORMATION.

OTHERWISE, THERE WILL BE A CHANCE OF SHOWERS AND THUNDERSTORMS EACH
DAY MAINLY IN THE AFTERNOON AND EVENING HOURS. AT THIS TIME NO
ACTIVITY OUTSIDE OF THE ORDINARY IS EXPECTED WITH THE MAIN CONCERN
BEING LIGHTNING STRIKES.


.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

$$
Member Since: August 6, 2011 Posts: 4 Comments: 39648
3466. LargoFl
Quoting weatherh98:


Prepare ahead!
..boy you got that right..prepare NOW
Member Since: August 6, 2011 Posts: 4 Comments: 39648
Isaac might just degenerate into a remnant low, I don't think it will, but it's possible, I would love to see some reaction of anger because it isn't going to destroy their region :)
Member Since: Posts: Comments:
Quoting TropicalAnalystwx13:
Recon finding some 50 mph winds.


Looks much better today TA13. I expect hurricane Issac sometime tonight.
Member Since: Posts: Comments:
Question from a long time lurker in Fla...the moisture streaming across us now from the GOM..what influence if any will it have on Issac if he decides to go the west coast way?..Anotherwords..does it have any steering effects..pushing Issac more inland?..Just wondering....
Member Since: Posts: Comments:
Quoting LargoFl:
I guess one thing is for sure..unless this storm goes to texas..we can be sure to get ALOT of rain once again..gee, around me we surely do not need this, ponds, lakes and streams are full now
Ponds are about half full close to me and some of our Lakes are down 50 feet if not more but Isaac is not heading to Texas, high pressure according to Weather forecasters will be locked over Texas next week, it will be pretty strong also. Major flooding in Florida has to be a huge concern, hope this storm moves in and moves out pretty quickly, Best Wishes Floridians.
Member Since: Posts: Comments:
Water temp in the gulf 87+ degrees near Cape Coral and up the west coast of Fl. That might punch up the volume some.
Member Since: Posts: Comments:
Issac is much better organized this morning. This could be a hurricane over the next 18 to 24 hours. Expect Issac to ramp up fast today.



Also of note the GFS shifted east on this run and could be the ultimate track of Issac.

Member Since: Posts: Comments:
Recon finding some 50 mph winds.
Member Since: Posts: Comments:
Quoting CajunCrawfishhunter:
Guys and Ladies. How close do we need to watch the storm over here in Louisiana?


As long as it's South and East of your Latitude while it's moving North West, you should watch it closely, once it passes your latitude, you can watch it less.
Member Since: Posts: Comments:
3457. FOREX
Quoting 900MB:


I think the theory by NHC is that it will cross the Dominican and the mountains will disrupt. I think the consensus on this board is that we are on the left side of the cone, more likely to see a Cuban crossing, hence a stronger storm.

Right now I am guessing a borderline Cat 2, South Florida, not sure if it will be East, West, or Center.


Thanks. The reason I ask, is because I live 1 mile from the Gulf in Panama City Beach, and the Road that I live on floods up very easily. A category 1 and I won't worry about evacuating. Anything stronger than that I'm not sure what to do. When I read what people post about the GFDL showing a CAT 4, I don't know what to believe.
Member Since: Posts: Comments:
3456. air360
I Can.Not.Wait until they get that G-IV data in the models this afternoon...and the data from all the stations that will be launching balloons.

Only then will we really be able to get an idea of where this is really going.

I know the setup is not exactly the same but I can not help but think back to Irene who had a very similar track and then had the major shift east once they added the extra info and data into the models. People then were set on it doing one thing and then bam - all new track.

Only time will tell...but the extra data sure will help.
Member Since: Posts: Comments:
Quoting GTcooliebai:
So you are agreeing that the storm is creating its own weakness?

Look at how the 1012 mb. lifts to the wnw and like I said, the CIMSS steering maps are updated every 3 hrs.



Every storm moves isobars around
Member Since: Posts: Comments:
Member Since: July 14, 2006 Posts: 0 Comments: 1163
Quoting GetReal:

It looks like young Isaac is sticking to the extreme left side of the cone....


Extreme left means it will go over this....

Member Since: September 30, 2007 Posts: 9 Comments: 15940
3451. Chiggy
Issac's stacking at mid levels is a BIG problem:
Member Since: Posts: Comments:

Viewing: 3501 - 3451

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90Blog Index

Top of Page

About

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

Local Weather

Overcast
54 °F
Overcast