Dr. Jeff Masters' WunderBlog

Tropical update; 4th warmest June on record
Posted by: Dr. Jeff Masters, 01:51 PM GMT em 26 de Julho de 2007 +1
Thunderstorm activity has increased over the central Gulf of Mexico this morning, thanks to a tropical wave moving westward at 20-25 mph. Winds have increased to 20-25 mph at the Gulf of Mexico buoy 275 miles SSE of Sabine Pass, Texas, but pressures are not falling. Wind shear is 20 knots over the wave, and is expected to remain at least 20 knots over the next two days. This is probably too high to allow tropical development to occur.

Two computer models, the GFS and ECMWF, are indicating the possibility of a tropical storm forming in the mid-Atlantic between Africa and the Lesser Antilles Islands by August 1. This is still a bit early for something to form in this region, given that the SSTs are average there. However, there is a strong tropical wave about to emerge from the coast of Africa that may be something to watch early next week as it moves over the central Atlantic.

Fourth Warmest June on record
June 2007 was the fourth warmest June for the globe on record, and the period January - June of 2007 was the second warmest such period ever, according to statistics released by the National Climatic Data Center. The global temperature record goes back 128 years. The global average temperature for June was +0.55�C (+0.99�F) above the 20th century mean. Over land, June global temperatures were the third warmest ever measured. Ocean temperatures were a bit cooler (eighth warmest on record). All land areas, with the exception of Argentina, were warmer than average during the period January-June 2007.

June temperatures were particularly warm across Southeast Europe, where temperatures soared to 40�C (104�F). At least 40 deaths were blamed on the heat, and electricity demand reached record levels. Winter in the Southern Hemisphere was colder than average in Argentina and Australia, and Johannesburg, South Africa's largest city, received its first significant snowfall since 1981 on June 27.

23rd warmest June on record in the U.S.
In the U.S., June 2007 ranked as the 23rd warmest since record keeping began in 1895. The period January through May was the 18th warmest such period on record. It was the second driest January-June and driest April-June on record in the Southeast. Alabama was hardest hit, with 86 percent of the state's pasture and range lands in poor or very poor condition in early July.


Figure 1. Temperature departure from average for June 2007. Image credit: National Climatic Data Center.

Sea ice extent
Sea ice extent in the Arctic for June was the fourth lowest on record, the second straight month that we haven't had a record low. Arctic sea ice coverage in June has declined by about 10% since measurements began in 1979 (Figure 2).


Figure 2. Arctic sea ice extent for June, for the years 1979-2007. June 2007 had the fourth lowest Arctic sea ice extent since satellite measurements began in 1979. May sea ice coverage has declined about 10% since 1979. Image credit: National Snow and Ice Data Center.

I'll have a new blog Friday.
Jeff Masters
Categories: Climate Summaries
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1251. StormJunkie 12:40 PM GMT em 27 de Julho de 2007    
Dang dude, your good, ESP or something ~)

Said morning even before I came in...lol

Anywho morning TD ☺

Good to see you SW, cg, er, pat, jp and all
Member Since: Agosto 17, 2005 Posts: 26 Comments: 15218
1252. Drakoen 12:44 PM GMT em 27 de Julho de 2007    
the GFS still in on the low to the SW of the CV islands.

Member Since: Outubro 28, 2006 Posts: 57 Comments: 29010
1254. weathermanwannabe 12:44 PM GMT em 27 de Julho de 2007    
Good Morning All...Going on my 10 day vacation today so I'll be back around August 7th; Yes, the shear/ull broke apart the GOM disturbance and it looks like things will be quiet in the ATL for the next several days (except for wave/blob watching for signs of possible development). We will see what August brings...My general thoughts are that June/July were typical (minimal activity) and that once again, the main factors to watch out for in terms of wave development will be shear/dry air values...In terms of movement, it will be the BH/Trough pattern set-up which is still pretty fluid at present.......Here's hoping for quiet August (or no land falling major storms) and I'll see everyone again early next month..........
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1255. franck 12:45 PM GMT em 27 de Julho de 2007    
The center of the system producing the convection in the Texas Gulf region appears to be about 100 miles east of Corpus Christi. It hasn't moved much over the last several days.
There may not be a low per se, but something appears centered there.
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1257. StormJunkie 12:50 PM GMT em 27 de Julho de 2007    
Have a good trip wwb
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1258. weathermanwannabe 12:51 PM GMT em 27 de Julho de 2007    
Thanks JP; I'll be up in Georgia so I'll have time to "run back" to Florida if I need to board up!..............
Member Since: Agosto 8, 2006 Posts: 0 Comments: 6703
1259. sonofagunn 12:52 PM GMT em 27 de Julho de 2007    
Here is a link to a buoy East of Corpus Christi that has had Westerly winds and falling pressures over the last couple of hours.

No one get their panties in a wad, I'm not predicting imminent death and destruction for everyone on the Gulf Coast, just pointing out an interesting weather buoy reading.
Member Since: Junho 12, 2006 Posts: 0 Comments: 120
1260. RadarRich 12:53 PM GMT em 27 de Julho de 2007    
Hi Folks,, seldom post, but I definitely would watch the circulation at 30-35 west/15 north. It looks like it has a nice spin beginning to come together and has a tight look to it. Definitely smaller than all the blobs and interests we have watched so far this year, but, I believe, the tighter and more compact when they start out that far east, the more chance for development, even this early. Sometimes big things "do" come in smaller packages, just an observation. Obviously many miles to go (along with wind shear/dry air/dust/ etc/etc. and other variables to contend with before she becomes a player. Happy Friday everyone, enjoy your day.
P.S. DewFree, you may want to relax and tone it down a few decibals with your inputs. The knowledge is there, somewhat, (maybe not the spelling), but alas, we are not trying to rewrite War and Peace here, are we??
Member Since: Junho 28, 2007 Posts: 0 Comments: 406
1261. Murko 12:53 PM GMT em 27 de Julho de 2007    
Morning.

Is there anywhere I can find number of storms forecast for this hurricane season, with relation to particular areas? I remember seeing a map about a week ago with a central path, incl FL, painted red, indicating the highest possibility of getting hit.

Any help appreciated, thanks.

El Mrko
Member Since: Julho 13, 2007 Posts: 0 Comments: 127
1262. Drakoen 12:54 PM GMT em 27 de Julho de 2007    
RadarRich the GFS has the low mvoing South. So it should get some more moisture.
Member Since: Outubro 28, 2006 Posts: 57 Comments: 29010
1263. Patrap 12:55 PM GMT em 27 de Julho de 2007    
Im up..and breathing,not in the obits,Yeah,its another good day for sure SJ!..LOL
Member Since: Julho 3, 2005 Posts: 372 Comments: 111626
1264. Drakoen 12:57 PM GMT em 27 de Julho de 2007    
The GFS long range showed whatever systems its developing coming very close to Florida. It looks like with each run it keeps moving more to the west. That is expected with that high building .
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1265. Patrap 12:58 PM GMT em 27 de Julho de 2007    
OMG!
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1267. eaglesrock 01:00 PM GMT em 27 de Julho de 2007    
What Pat?
1269. Patrap 01:00 PM GMT em 27 de Julho de 2007    
Trofs plunging South and east like today...thata a buffer from the CV storms. But the BH should build in and establish the east to west road to perdition.
Member Since: Julho 3, 2005 Posts: 372 Comments: 111626
1270. Drakoen 01:02 PM GMT em 27 de Julho de 2007    
here the link. Compare the area to the 0z run near Florida to the 06z.
Link
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1271. Drakoen 01:03 PM GMT em 27 de Julho de 2007    
I edit my post.... its the 0z and the 06z..
Member Since: Outubro 28, 2006 Posts: 57 Comments: 29010
1272. Patrap 01:04 PM GMT em 27 de Julho de 2007    
Theres a big ol ULL with a cold front still present near the Great Lakes a spinning..Till that boy gets out the way..its difficult..to get a CV storm ..close
Link
Member Since: Julho 3, 2005 Posts: 372 Comments: 111626
1274. Patrap 01:05 PM GMT em 27 de Julho de 2007    
The front may even push offshore to the GOM and bring another few days of dryer,less humid air to the Gulf coast again.
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1275. Drakoen 01:06 PM GMT em 27 de Julho de 2007    
JP compare the 0z run to the 06z run and you will see.
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1276. Patrap 01:07 PM GMT em 27 de Julho de 2007    
Those long range looks are like tossing rocks into a pond and watching the wave rings..each toss will show a different pattern.A consensus,..its a consensus between the Models ..over time that one should focus on.If you comment on every run, youll lose focus and get er,,,stale .
Member Since: Julho 3, 2005 Posts: 372 Comments: 111626
1278. Patrap 01:08 PM GMT em 27 de Julho de 2007    
NRL Monterey Global Imagery
Note: Click desired image for more features and options.
Link
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1279. Drakoen 01:09 PM GMT em 27 de Julho de 2007    
I just saw the ECMWF and it shows development as well.
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1281. Patrap 01:10 PM GMT em 27 de Julho de 2007    
Thats one big butted Front protecting the western Atlantic for now..and that has to move before anything will threaten for now Link
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1282. MisterPerfect 01:11 PM GMT em 27 de Julho de 2007    
If you comment on every run, youll lose focus and get er,,,stale .

Can't wait for the July Arctic Sea Ice Report...as long as we're talking stale...
Member Since: Novembro 1, 2006 Posts: 69 Comments: 19470
1284. Patrap 01:12 PM GMT em 27 de Julho de 2007    
Go back in this blog archive for 14 days and look at the posts on Model development ..and 0% have developed. One needs to focus on the real time as well as the future to get a grasp of whats occuring,and whats LIKELY to occur downstream.Models are not Gospel..there HINTS at best that far out..
Member Since: Julho 3, 2005 Posts: 372 Comments: 111626
1285. RadarRich 01:13 PM GMT em 27 de Julho de 2007    
Yep, Drakoen, definitely with a shift a little south by the GFS model shows plenty of moisture available. Water vapor loops show more and more moisture in that area in contrast to previous weeks where it looked like the Sahara Desert. As DR. Masters said above: Two computer models, the GFS and ECMWF, are indicating the possibility of a tropical storm forming in the mid-Atlantic between Africa and the Lesser Antilles Islands by August 1. This is still a bit early for something to form in this region, given that the SSTs are average there. Who knows, the timing seems about right for that scenario with this circulation, we shall see, as well as the wave just exiting Africa.
Member Since: Junho 28, 2007 Posts: 0 Comments: 406
1286. Drakoen 01:14 PM GMT em 27 de Julho de 2007    
the ECMWF at 144 hours out has the storm in the same position as the GFS 144 hours.
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1287. Patrap 01:14 PM GMT em 27 de Julho de 2007    
Artic Sea ice MP has a large role in Sunlight reflection,less sea ice..more UV absorption..its relevant to the big scheme. Not the QOD..LOL
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1288. Drakoen 01:15 PM GMT em 27 de Julho de 2007    
the CMC also forecast something as well..
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1289. Patrap 01:16 PM GMT em 27 de Julho de 2007    
And?
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1290. MisterPerfect 01:16 PM GMT em 27 de Julho de 2007    
Relevance, maybe. Stale, definetly.
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1291. Patrap 01:17 PM GMT em 27 de Julho de 2007    
This dog dont hunt MP..or run with the pack,you should know that.LOL
Member Since: Julho 3, 2005 Posts: 372 Comments: 111626
1292. stoormfury 01:18 PM GMT em 27 de Julho de 2007    
The models have been calling for development for a while now. the problem is they have not been consistent and nothing has happenned so far. i believe itis the inconsistences of the long range forecast Be that as it may i am still keeping an eye on the CATL wave. THE CONVECTION HAS WAXED AND WANED FOR SEVERAL HOURS NOW.Itis trying to consolidate along an area of lower pressure, as at the moment there are toomany vortices
Member Since: Agosto 22, 2006 Posts: 0 Comments: 2304
1294. TheCaneWhisperer 01:19 PM GMT em 27 de Julho de 2007    
SUPER LONG RANGE, HIGHLY INACCURATE GFS FORCAST. YIKES! WILL THE FARMERS BE RIGHT?

DISCLAIMER - FOR AMUSEMENT PURPOSES ONLY :-)
1295. MisterPerfect 01:20 PM GMT em 27 de Julho de 2007    
Isn't every fraction of everything relative to the big scheme? .358889 AU's closer to the Sun and this planet has rocks for congressmen.
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1297. Patrap 01:21 PM GMT em 27 de Julho de 2007    
La,la..morning MP!
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1298. Patrap 01:21 PM GMT em 27 de Julho de 2007    
Your post denotes anger,or something under your skin MP...LOL
Member Since: Julho 3, 2005 Posts: 372 Comments: 111626
1299. StormJunkie 01:23 PM GMT em 27 de Julho de 2007    
Morning TCW and MP, good to see y'all

Anyone care to decipher what time the last ascending pass was?

Member Since: Agosto 17, 2005 Posts: 26 Comments: 15218
1300. MisterPerfect 01:23 PM GMT em 27 de Julho de 2007    
Just having a rough morn Pat, sorry for that..unlike me. Maybe I should go find my "pack" or chase a car or something..
Member Since: Novembro 1, 2006 Posts: 69 Comments: 19470
1301. Patrap 01:23 PM GMT em 27 de Julho de 2007    
GOES IR Loop of Gulf of Mexico
Link
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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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