Dr. Jeff Masters' WunderBlog

Nothing new with Bertha
Posted by: Dr. Jeff Masters, 4:14 PM GMT on July 12, 2008 +2
I'll echo the statement of Hurricane Specialist Lixion Avilla in the 11 am Hurricane Bertha discussion: "After a week or so...I am running out of things to say about Bertha." Hurricane Bertha has slowed to crawl, and remains in no hurry to recurve out to sea. The storm continues its rather sloppy appearance on satellite loops, thanks to the fact that the inner eyewall dissolved, leaving a new, much larger eye. Bertha's structure is sufficiently sloppy that significant intensification is not likely, despite the presence of wind shear less than 10 knots and water temperatures of 27.5°C. Shear is forecast to remain below 10 knots until Monday morning, when it should rise to 20 knots. At that time, Bertha should be over 26°C water, and will probably weaken to tropical storm strength. The Air Force Hurricane Hunters will make their second flight into Bertha this afternoon to check on the storm's strength. The outer spiral bands of Bertha are starting to affect Bermuda (see links below), and the storm is now visible on Bermuda radar.

Links to follow:
Bermuda radar
Current weather at Bermuda
Bermuda WebCam

_
Figure 1. Microwave image of Bertha from 5:45 GMT 7/12/2008 showing the vary large eye. Image credit: Navy Research Lab.

High surf of 9-15 feet is already affecting Bermuda, according to the Bermuda Weather Service. There is about a 61% chance the island will experience sustained winds of tropical storm force (40 mph), according to the latest tropical storm wind probability forecast by NHC. Given the very weak steering currents predicted to affect Bertha through Monday, the storm could easily approach closer to the island than the current official forecast. None of the computer models currently foresee that hurricane force winds will impact the island, and I don't expect this will happen.

Elsewhere in the tropics
There are no threat areas to discuss in the tropical Atlantic. The models are more scattered in their prediction of a tropical depression forming between Africa and the Lesser Antilles Islands 4-7 days from now. One model, the ECMWF, has dropped its forecast of a depression forming, and the two remaining models disagree on just when such a depression might form. There are not any impressive tropical waves near the coast of Africa presently, so I'm currently dubious of the model predictions of a Cape Verdes-type tropical storm forming next week.

I'll post an update Sunday morning.
Jeff Masters
South Shore Bermuda (denmar)
Hurricane Bertha weather in Bermuda on Friday July 11th, 2008
South Shore Bermuda
Hurricane Bertha 2008 (LRandyB)
As we made our into the outer edges of the storm, the clouds began to thicken up and the seas began to get rougher
Hurricane Bertha 2008
Hurricane Bertha 2008 - 6 (LRandyB)
Looking out the window as we approach the outer eyewall, the banding of the clouds is obvious.
Hurricane Bertha 2008 - 6
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1251. FLWeatherFreak91 2:30 PM GMT on July 13, 2008    
Quoting presslord:
although as a matter of practical geography..and forecasting specificity... it DOES matter...as NC sticks out and is arguably more vulnerable....


I guess you would say that your southerly counterpart is the 'woosy' who backed away geographically from the ocean....? Bc I think so lol
Member Since: December 1, 2006 Posts: 2 Comments: 3461
1253. crownwx 2:31 PM GMT on July 13, 2008    
JFV: Next time you quote my discussions....please give credit up front or don't even quote my discs. I noticed credit wasn't given until further down the page. Thanks.
Member Since: December 27, 2004 Posts: 3 Comments: 207
1254. ntbkornaker07 2:31 PM GMT on July 13, 2008    
Quoting presslord:
although as a matter of practical geography..and forecasting specificity... it DOES matter...as NC sticks out and is arguably more vulnerable....


So right i live just south of that area that just sticks out.
1255. FLWeatherFreak91 2:32 PM GMT on July 13, 2008    
Quoting JFV:
There won't be no need for that Sporte, because their ignorant silence towards me, speaks volumes!


Maybe they blocked you.... that's why emailing them would be a good method of contact.
Member Since: December 1, 2006 Posts: 2 Comments: 3461
1257. hurricane23 2:33 PM GMT on July 13, 2008    
Also though early just wanted to mention SHIPS model has 94L as a 82kt hurricane in the caribbean.

You can get its ouput HERE.
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1259. presslord 2:33 PM GMT on July 13, 2008    
yea freak...we're the Chicken Carolinians.....
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1260. IKE 2:38 PM GMT on July 13, 2008    
15 GMT 07/13/08 30.2N 63.0W 65 988 Tropical Storm


Bertha is dying a slow death.
Member Since: June 9, 2005 Posts: 23 Comments: 37044
1261. TampaSpin 2:38 PM GMT on July 13, 2008    
1255. FLWeatherFreak91 10:32 AM EDT on July 13, 2008

Freak, i don't think i am blocked by anyone....but i did take you off my very small list if bloggers that i have a relationship with i thought....i send an email to those people that are not currently signed on to let them know of an updated. You are no longer on my list......thank you and please put me on your ignor list.
Tim
Member Since: September 2, 2007 Posts: 175 Comments: 19747
1262. KEEPEROFTHEGATE (Mod) 2:39 PM GMT on July 13, 2008    
***/INVEST/*
TRACK MARK
8.9N/37.2W
9.1N/37.8W
10.2N/38.2W
10.8N/38.7W
11.1N/39.1W
***STOP***
Member Since: July 15, 2006 Posts: 143 Comments: 40497
1263. IpswichWeatherCenter 2:40 PM GMT on July 13, 2008    
1262.

so the invest is now a depression?
Member Since: April 27, 2008 Posts: 29 Comments: 2097
1264. philliesrock 2:41 PM GMT on July 13, 2008    
Quoting KEEPEROFTHEGATE:
03L/INVEST/C
TRACK MARK
8.9N/37.2W
9.1N/37.8W
10.2N/38.2W
10.8N/38.7W
11.1N/39.1W
***STOP***

03L? Did I miss something?
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1265. FLWeatherFreak91 2:42 PM GMT on July 13, 2008    
Mail TampSpin
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1266. CybrTeddy 2:43 PM GMT on July 13, 2008    
Quoting hurricane23:
Also though early just wanted to mention SHIPS model has 94L as a 82kt hurricane in the caribbean.

You can get its ouput HERE.


I wouldn't be surprised to see a Hurricane, wouldn't be the first one of the year.
Member Since: July 8, 2005 Posts: 253 Comments: 20238
1267. cchsweatherman 2:44 PM GMT on July 13, 2008    
Quoting JFV:
Guys, could 94L rapidly intensify once it enters the Carib?


JFV - I just have a question for you. With every system that has developed, why do you constantly ask for predictions as to potential threats to Florida or regarding intensity when the system is a couple thousand miles away from impacting any land? As has been stated time and time again, we will have to wait for this to actually organize and develop into a bonafide tropical system before questions like that can even warrant a response.

It seems like you get too excited over each tropical system that develops. We have abundant time to watch this system, so sit back, relax, and enjoy the show until it comes time when anyone may have to start getting concerned about it.
Member Since: April 14, 2007 Posts: 8 Comments: 4926
1268. FLWeatherFreak91 2:46 PM GMT on July 13, 2008    
no it's not a depression. The navy site still has invest
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1269. KEEPEROFTHEGATE (Mod) 2:47 PM GMT on July 13, 2008    
no the invest is not a depression typo its been corrected
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1270. KEEPEROFTHEGATE (Mod) 2:48 PM GMT on July 13, 2008    
Quoting KEEPEROFTHEGATE:
***/INVEST/*
TRACK MARK
8.9N/37.2W
9.1N/37.8W
10.2N/38.2W
10.8N/38.7W
11.1N/39.1W
***STOP***
corrected as invest
typo
Member Since: July 15, 2006 Posts: 143 Comments: 40497
1272. FLWeatherFreak91 2:50 PM GMT on July 13, 2008    
didn't this same thing happen when Bertha was forming? The navy messed something up and we all went crazy excited lol
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1273. HadesGodWyvern 2:50 PM GMT on July 13, 2008    
Japan Meteorological Agency
Tropical Cyclone Warning
21:00 PM JST July 13 2008

==========================================
At 12:00 PM UTC, Tropical Depression (1006 hPa) located near 20.1N 126.4E has 10 minutes sustained winds of 30 knots with gusts up to 45 knots. The depression is reported as almost stationary.

Forecast and Intensity
=======================
24 HRS: 20.3N 125.4E - 35 knots (CAT 1)

--
93W is reported as a 30 knots depression now, if anyone cares =P

Member Since: May 24, 2006 Posts: 43 Comments: 36686
1274. aquak9 2:50 PM GMT on July 13, 2008    
JFV- no disrespect, dear...but crown piped in before I could.

I fought an 18 hour battle here for the respect of Mr. Lightbown. I got slammed, recieved wu-mail death threats, and got drug thru the mud. I would do it all over again for him.

Yes, PLEASE provide reference to "other sites" as Mr. Lightbown has worked very hard over the years to provide us with excellent updates.

Thank you for understanding of other's hard work.
Member Since: August 13, 2005 Posts: 163 Comments: 25007
1275. TampaSpin 2:52 PM GMT on July 13, 2008    
1271. jphurricane2006 10:49 AM EDT on July 13, 2008
its not a depression, it will take a few days for that to happen

jfv I have to agree with cchs, we need to take things one step at a time, we like your enthusiasm but you have to realize that the questions you ask are very difficult for even the smartest people on here to answer. Just sit back and relax a bit and analyze what is being said on here before you come out with a question


JFV your my friend and i agree with this ....just relax.....
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1276. KEEPEROFTHEGATE (Mod) 2:52 PM GMT on July 13, 2008    
ive been trackin bertha to long but she's just about gone
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1277. BahaHurican 2:52 PM GMT on July 13, 2008    
I'm back! I had to step out unexpectedly.

I'm assuming the 11 a.m. on Bertha / Elida is out . . .
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1278. CybrTeddy 2:53 PM GMT on July 13, 2008    
Quoting BahaHurican:
I'm back! I had to step out unexpectedly.

I'm assuming the 11 a.m. on Bertha / Elida is out . . .


Bertha at 65 MPH,
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1279. KEEPEROFTHEGATE (Mod) 2:53 PM GMT on July 13, 2008    
baby steps jfv baby steps
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1280. lawntonlookers 2:53 PM GMT on July 13, 2008    
Interesting reconstruction of Bertha this morning. It appered as the left eyewall nived to the east revaling a new eye that was at a lower level. Also in the NE quadrant, it appears the clouds have intensified and Bertha is starting a NW movement,

Also on I94, it appears that circulation has started at 7N 35 W. This could be a massive storm if everything pulls together.
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1281. FLWeatherFreak91 2:55 PM GMT on July 13, 2008    
Re read post 1255 TS... Look who I was qouting
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1282. HurricaneMaryJane 2:57 PM GMT on July 13, 2008    
Quoting JFV:
There won't be no need for that Sporte, because their ignorant silence towards me, speaks volumes!


I don't know if I missed something but it's probably because you asked them questions every 5 seconds. Don't sweat it though, JFV, they are just dudes that you will never meet, I don't know why you care so much. Just gotta keep on keepin' on. (Que the youtube music video post)

This thing seems like it will continue West for 24-36 hours and then head WNW...is this the consensus?

1283. stoormfury 2:57 PM GMT on July 13, 2008    
94l at this time loos rather disorganised the longer it takes to get it's act together the more west it will track. judging from what i am seeing now the system will take sometime before becoming a TD. the system is quite large and it will take time for the convection to consolidate over one spot. my projection of the track is one favouring the UKMET which takes 94L/TD3/ Cristobal through the central windwards and into the central caribbeani
Member Since: August 22, 2006 Posts: 0 Comments: 2303
1284. surfmom 2:58 PM GMT on July 13, 2008    
Wow -- what a difference a night makes. Go to bed wake up, and there's a bunch of burners making hurricane soup. hope one of these will provoke someone that wants to visit to cancel their tickets... By the time this season is over, I will have many, many lessons in meteorology - maybe I'll even begin to understand, shear maps etc.

in & out
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1285. 305st0rm 2:59 PM GMT on July 13, 2008    
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1286. Drakoen 3:00 PM GMT on July 13, 2008    
Quoting stoormfury:
94l at this time loos rather disorganised the longer it takes to get it's act together the more west it will track. judging from what i am seeing now the system will take sometime before becoming a TD. the system is quite large and it will take time for the convection to consolidate over one spot. my projection of the track is one favouring the UKMET which takes 94L/TD3/ Cristobal through the central windwards and into the central caribbeani


I don't see the UKMET developing anything, though it is taking the vorticity associated with the low pressure center towards the Leeward islands.
Member Since: October 28, 2006 Posts: 57 Comments: 29010
1287. Cavin Rawlins 3:02 PM GMT on July 13, 2008    
Just as I stated in my update this morning...the NHC/TPC adjusted the wave and low more towards the Navy location with a 1009 low expected to deepen to 1008 mb.

Member Since: July 24, 2005 Posts: 407 Comments: 19076
1289. HadesGodWyvern 3:03 PM GMT on July 13, 2008    
don't see the UKMET developing anything, though it is taking the vorticity associated with the low pressure center towards the Leeward islands.

---
The UKMET did at one point Friday... it has not appear since.
Member Since: May 24, 2006 Posts: 43 Comments: 36686
1290. ShenValleyFlyFish 3:04 PM GMT on July 13, 2008    
Quoting pearlandaggie:
press, if you light it on fire, then those guys will forget all about you! LOL


Something that has always wondered me. When the paper prints a picture of a big pot burn how come the Deputies are always standing upwind? Any fool ever burned off his pea patch knows that's the wrong side. Upwind's for hunting, downwind's for burning. Any fool who's Moma taught him to come in out of the rain knows that.
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1291. KYhomeboy 3:05 PM GMT on July 13, 2008    
Agree....94L still disorganized BUT judging my latest imagery....is getting better organized in terms of cloud pattern and consolidation. Check out the visible loop....

Link
1292. 305st0rm 3:05 PM GMT on July 13, 2008    
someone wanna give me an update....i see we got 94L
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1293. HadesGodWyvern 3:05 PM GMT on July 13, 2008    
last time the UKMET developed something east of the Leeward Island.

LINK: Jul 11, 1700 UTC
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1295. Patrap 3:07 PM GMT on July 13, 2008    
UNYSIS 10-Day GFSx Link

GOES-12 Atlantic Ocean View (Updated ~3 hours) Link

GOES-12 Channel 4 (IR) GOES-12 Channel 3 (WV) GOES-12 Low Cloud Product
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1296. KEEPEROFTHEGATE (Mod) 3:08 PM GMT on July 13, 2008    
well its almost time for update from doc and he's take on 94l i am waitin on the doc lets see what he says about this one
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1297. presslord 3:08 PM GMT on July 13, 2008    
surfmom...you and I are about the same vintage...when you figger it all out please let me know..the more I learn the dumber I feel....
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1298. Patrap 3:08 PM GMT on July 13, 2008    
To see an update,click on "Tropical/Hurricane" in the Top Task Bar..on every wu-page.

Easy
Member Since: July 3, 2005 Posts: 371 Comments: 111388
1299. FranAteMyRoof96 3:08 PM GMT on July 13, 2008    
Good morning all. I have a question. On this wv loop (Link), there is a small spin just east of the bahamas. If that is an ULL, that would impede any development of the blob off Charleston if it keeps moving towards it, right?
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1300. 305st0rm 3:09 PM GMT on July 13, 2008    
That wave coming off the coast of africa is looking pretty healthy
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1301. txalwaysprepared 3:10 PM GMT on July 13, 2008    
Sorry - went out to pull weeds and water.

1232. Thanks TS!

1235. Philliesrock ( i disagree with your handle lol) Thank you so much for the info.
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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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