A Gulf of Mexico and an Eastern Atlantic Disturbance Worth Watching

By: Dr. Jeff Masters , 1:53 PM GMT on July 06, 2013

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A tropical disturbance (designated 94L by NHC on Friday) is over the Western Gulf of Mexico, and is headed north towards the Texas/Louisiana coast at 5 - 10 mph. Satellite loops show a modest area of disorganized heavy thunderstorm activity that has been steadily growing this morning. Wind shear has fallen to the moderate range, 10 - 20 knots, since Friday, and the lower wind shear is likely responsible for the increase in thunderstorm activity. A trough of low pressure over the Western Gulf of Mexico is pumping dry air into the west side of 94L, interfering with development. The disturbance should move inland by Sunday morning, bringing heavy rains of 1 - 3" along the Upper Texas and Western Louisiana coasts through Monday morning. None of the reliable forecast models predict that the disturbance will develop, and the disturbance has only a day over water with marginal conditions for development. In their 8 am EDT July 6 Tropical Weather Outlook, NHC gave the disturbance a 20% chance of developing into a tropical depression or tropical storm by Monday.


Figure 1. The Saturday morning NHC Tropical Weather Outlook shows two "Invests" worth watching: 94L over the Gulf of Mexico (area 1), and 95L over the Eastern Atlantic (area 2.) Both were given 20% chances of developing by Monday. Image credit: NHC.

Cape Verdes tropical wave 95L
As we approach mid-July, it's time to begin turning our attention to tropical waves coming off the coast of Africa. We have our first such system worthy of attention today, a tropical wave designated 95L over the Eastern Atlantic near 8°N 33°W, about 800 miles southwest of the Cape Verde Islands. Satellite loops show a modest area of heavy thunderstorms that is showing a moderate amount of spin. Wind shear is moderate, 10 - 20 knots, and ocean temperatures are warm, 28°C. The 8 am EDT Saturday forecast from the SHIPS model predicted that 95L would encounter cooler waters of 27.5°C over the weekend as it headed west to west-northwest at 15 - 20 mph. Wind shear is expected to remain moderate though Monday, which may allow for some additional organization. However, 95L is embedded in a very large area of dry air associated with the Saharan Air Layer (SAL), and July African waves typically have considerable trouble getting organized in the very dry air of the SAL. The disturbance could arrive in the Lesser Antilles Islands as early as Tuesday. A band a strong upper-level winds associated with the subtropical jet stream is expected to be over the northern islands at that time, and if 95L has penetrated as far north as 15°N latitude by that time, it will have to face very high wind shear of 30+ knots. But if 95L stays farther to the south, wind shear should be lower, giving the storm a better chance of development. None of the reliable forecast models predict that 95L will develop. In their 8 am EDT July 6 Tropical Weather Outlook, NHC gave the disturbance a 20% chance of developing into a tropical depression or tropical storm by Monday.


Figure 2. MODIS image of 95L taken at approximately 11 am EDT Saturday, July 6, 2013. Image credit: NASA.

Elsewhere in the tropics
A large upper-level cold-cored low pressure system a few hundred miles north of Puerto Rico will move west over the next dew days, arriving in the Bahamas by Sunday and South Florida by Tuesday. The models do not show that this low will will acquire a surface circulation, and there is only minimal heavy thunderstorm activity associated with it.

In the Eastern Pacific, Tropical Storm Erick is brushing the southwestern coast of Mexico, and is expected to intensify into a Category 1 hurricane on Saturday afternoon. Erick will bring heavy rains of 3 - 5 inches to Southwest Mexico, but the core of the storm is currently expected to remain just offshore. Erick will likely weaken to a tropical storm on Monday, when it will pass just south of Baja.

Cool San Francisco time-lapse fog video
Videographer Simon Christen has created a spectacular 4-minute time-lapse video of fog rushing in past the Golden Gate Bridge into San Francisco. He writes: ""Adrift" is a love letter to the fog of the San Francisco Bay Area. I chased it for over two years to capture the magical interaction between the soft mist, the ridges of the California coast and the iconic Golden Gate Bridge. This is where “Adrift” was born. The weather conditions have to be just right for the fog to glide over the hills and under the bridge. I developed a system for trying to guess when to make the drive out to shoot, which involved checking the weather forecast, satellite images and webcams multiple times a day. For about 2 years, if the weather looked promising, I would set my alarm to 5am, recheck the webcams, and then set off on the 45-minute drive to the Marin Headlands. I spent many mornings hiking in the dark to only find that the fog was too high, too low, or already gone by the time I got there. Luckily, once in a while the conditions would be perfect and I was able to capture something really special. Adrift is a collection of my favorite shots from these excursions into the ridges of the Marin Headlands."


Video 1. Adrift from Simon Christen on Vimeo.

Jeff Masters

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This is from a professional meteorologist on another forum

"Another consideration...(preaching to the choir here to some degree). Stronger trade flow versus weaker equatorward winds are the most ideal environmental flow for t-waves to close off."

Explanation here

Member Since: Posts: Comments:
Quoting 1386. sar2401:

Evening, Nigel. Partly cloudy and humid here but no rain. Had a grand total of .11" earlier this morning, and the high got to 90 as the clouds started to clear. We should be back to about 150 degrees again by Monday. :)

wow 150 degrees "UGH" I for got we are still in July...
Sar today we have 3.58" since midnight and I know we never made it to 80 degrees...
How are you tonight????

Taco :o)
Member Since: Posts: Comments:
Quoting 1392. MississippiWx:
If the 18z GFS 500mb forecast for Day 8 were to verify, 95L or whatever it is at the time, would most likely not move north of Florida. This would imply a Gulf-bound system. Just food for thought.


Yep

Quoting 1395. daddyjames:


Ivan had a lot more going for it, it was bigger, and much further north than 95L is at the moment.




Ok maybe it was a bit bigger and it was less than a degree higher by .1 but they are minor
Member Since: June 13, 2009 Posts: 2 Comments: 13577
Quoting 1400. KoritheMan:


I keep saying Chantal is going to be a beast.


Hi Kori. But not before it reach the Eastern Caribbean islands right?
Member Since: Posts: Comments:
Quoting 1392. MississippiWx:
If the 18z GFS 500mb forecast for Day 8 were to verify, 95L or whatever it is at the time, would most likely not move north of Florida. This would imply a Gulf-bound system. Just food for thought.



I keep saying Chantal is going to be a beast.
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Quoting 1390. wunderkidcayman:

Lucky you we had it direct


the island of Grenada had it direct as well....where kirani james is from!
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1398. nigel20
Quoting 1390. wunderkidcayman:

Lucky you we had it direct

Yeah, I saw that. The damage in the Cayman Islands was really bad. Ivan would have probably been worst than Gilbert had it been a direct impact. Gilbert was a 125mph hurricane while making land fall over Jamaica and Ivan was a slow moving 145mph hurricane. Total damages from Gilbert was about US$ 4 billion (1988).
Member Since: Posts: Comments:
Quoting 1392. MississippiWx:
If the 18z GFS 500mb forecast for Day 8 were to verify, 95L or whatever it is at the time, would most likely not move north of Florida. This would imply a Gulf-bound system. Just food for thought.



And the 18Z NAM ensemble mean also agrees at about the same forecast hour. FWIW
Member Since: Posts: Comments:
Quoting 1392. MississippiWx:
If the 18z GFS 500mb forecast for Day 8 were to verify, 95L or whatever it is at the time would most likely not move north of Florida. This would imply a Gulf-bound system. Just food for thought.



If anyone is interested in what it may do, the 18Z GFS ensemble spread has an interesting take out about about day 12. Something worth looking into for those of you who would like.
Member Since: Posts: Comments:
Quoting 1388. wunderkidcayman:

It does not matter unless if condition are completely different when their not it almost the same Ivan had the same problems as 95L is having now it was moving fast as 95L and it had dry air and SAL problem as 95L does and both looked almost the same at the start


Ivan had a lot more going for it, it was bigger, and much further north than 95L is at the moment.



Member Since: Posts: Comments:
Quoting 1377. sar2401:

No, Tuesday, for now. The HH's don't generally fly all the way to ICTZ unless there's a big deal down there. They won't fly on Tuesday either if 95L doesn't gain some latitude or start to develop into a closed low.

Edit: Correct, Monday. I thought it was already Sunday. You forget what day it is when you're retired. :-)


I'm not sure there's a hard-n-fast rule, but if memory serves me the general rule of thumb has been no flight until a system has passed 55w.
Member Since: July 9, 2006 Posts: 184 Comments: 29610
1393. nigel20
Quoting 1386. sar2401:

Evening, Nigel. Partly cloudy and humid here but no rain. Had a grand total of .11" earlier this morning, and the high got to 90 as the clouds started to clear. We should be back to about 150 degrees again by Monday. :)

We had a bit of afternoon showers as a result of day time heating, but it was mostly in the western end of the island.
Member Since: Posts: Comments:
If the 18z GFS 500mb forecast for Day 8 were to verify, 95L or whatever it is at the time, would most likely not move north of Florida. This would imply a Gulf-bound system. Just food for thought.

Member Since: July 15, 2006 Posts: 17 Comments: 10285
1391. sar2401
Quoting redwagon:


That's the point, I couldn't even tell you where it was, let alone if it is. Only thing keeps me from ripping it is:



Maybe that's where it's gonna BE.

Or that graphic is nuts. :-) I can see some convection creeping into the BOC from Erick, as it's done for the past couple of days, but that doesn't deserve to be an invest.
Member Since: Posts: Comments:
Quoting 1384. nigel20:

Hey sar! I'm still amazed at the level of damage we had in Jamaica even though we didn't have a direct impact. Hurricane Ivan's eyewall went just to our south. Our radar measured wind speeds in excess of 110 knots to our south.

Hurricane Ivan


Lucky you we had it direct
Member Since: June 13, 2009 Posts: 2 Comments: 13577
1389. will40
Quoting 1381. Hurricanes305:


Conflicting messages which is it? 


unless they have changed it this year
they wont fly until it reaches at least 55W
Member Since: September 19, 2005 Posts: 2 Comments: 4266
Quoting 1373. sar2401:

Ivan did so in September. Early July is not September.

It does not matter unless if condition are completely different when their not it almost the same Ivan had the same problems as 95L is having now it was moving fast as 95L and it had dry air and SAL problem as 95L does and both looked almost the same at the start
Member Since: June 13, 2009 Posts: 2 Comments: 13577
Quoting 1369. sar2401:


OK, in looking at this latest satellite IR, can you tell me exactly where 94L is? What is the RGB having a hard time seeing through? Not only did it not make progress aganst the Texas/Western ridge, the ridge is starting to advance out into the Gulf. The only substantial convection is over land. What's over the Gulf looks more like Swiss cheese. They've even dropped most of the flash flood watches over Georgia and Alabama as the blob is quickly weakening and moving north.

You must be seeing a lot I don't see.



That's the point, I couldn't even tell you where it was, let alone if it is. Only thing keeps me from ripping it is:



Maybe that's where it's gonna BE.
Member Since: August 4, 2007 Posts: 0 Comments: 3383
1386. sar2401
Quoting nigel20:
Good evening friends!

Evening, Nigel. Partly cloudy and humid here but no rain. Had a grand total of .11" earlier this morning, and the high got to 90 as the clouds started to clear. We should be back to about 150 degrees again by Monday. :)
Member Since: Posts: Comments:

Quoting 1379. Tropicsweatherpr:


For Tuesday morning.

NEAR 13.3N 57.3W FOR 09/1200Z
thanks my eye are sleepy from being on here so long. have good nite everyone
Member Since: Posts: Comments:
1384. nigel20
Quoting 1373. sar2401:

Ivan did so in September. Early July is not September.

Hey sar! I'm still amazed at the level of damage we had in Jamaica even though we didn't have a direct impact. Hurricane Ivan's eyewall went just to our south. Our radar measured wind speeds in excess of 110 knots to our south.

Hurricane Ivan

Member Since: Posts: Comments:
1383. ncstorm
Quoting 1381. Hurricanes305:


Conflicting messages which is it?


its Tuesday the day they fly out..the plan of the day is for tomorrow..
Member Since: Posts: Comments:
Just started on my blog. I would say it'll be out verrrrry late, though. I got to move programs to new computer along with my graphic template. Meanwhile, join me in chat.
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Quoting 1377. sar2401:

No, Tuesday, for now. The HH's don't generally fly all the way to ICTZ unless there's a big deal down there. They won't fly on Tuesday either if 95L doesn't gain some latitude or start to develop into a closed low.

Quoting 1378. ncstorm:


For Tomorrow (text issued today)
Conflicting messages which is it? 
Member Since: Posts: Comments:
1380. ncstorm
Quoting 1377. sar2401:

No, Tuesday, for now. The HH's don't generally fly all the way to ICTZ unless there's a big deal down there. They won't fly on Tuesday either if 95L doesn't gain some latitude or start to develop into a closed low.


Really?..
Member Since: Posts: Comments:
Quoting 1374. Hurricanes305:

is that schedule for monday


For Tuesday morning.

NEAR 13.3N 57.3W FOR 09/1200Z
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1378. ncstorm
Quoting 1374. Hurricanes305:

is that schedule for monday


For Tomorrow plan of the day (text issued today)
Member Since: Posts: Comments:
1377. sar2401
Quoting Hurricanes305:

is that schedule for monday

No, Tuesday, for now. The HH's don't generally fly all the way to ICTZ unless there's a big deal down there. They won't fly on Tuesday either if 95L doesn't gain some latitude or start to develop into a closed low.

Edit: Correct, Monday. I thought it was already Sunday. You forget what day it is when you're retired. :-)
Member Since: Posts: Comments:
Good outflow on 95L 3/4 of the way around. NE quad still lacking decent outflow. Lets see what happens by tomorrow.
Member Since: Posts: Comments:
Quoting 1370. redwagon:



___


/...\


/ 94L \


|.....|


| RIP |


|_____|


Mine's even worse!


LOL - it looked like it would be a good idea, no?
Member Since: Posts: Comments:

Quoting 1371. ncstorm:
000
NOUS42 KNHC 061709
REPRPD
WEATHER RECONNAISSANCE FLIGHTS
CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.
0115 PM EDT SAT 06 JULY 2013
SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)
VALID 07/1100Z TO 08/1100Z JULY 2013
TCPOD NUMBER.....13-036 AMENDMENT

I. ATLANTIC REQUIREMENTS....................................AD DED.
1. NEGATIVE RECONNAISSANCE REQUIREMENTS.
2. OUTLOOK FOR SUCCEEDING DAY.....NEGATIVE.
3. ADDITIONAL DAY OUTLOOK: POSSIBLE LOW-LEVEL INVEST
IN CENTRAL ATLANTIC NEAR 13.3N 57.3W FOR 09/1200Z.

II. PACIFIC REQUIREMENTS................................NO CHANGES.
1. NEGATIVE RECONNAISSANCE REQUIREMENTS.
2. OUTLOOK FOR SUCCEEDING DAY.....NEGATIVE.

$$
SEF
is that schedule for monday
Member Since: Posts: Comments:
1373. sar2401
Quoting wunderkidcayman:

Ivan 04 formed that far S and was moving at about the same speed

Ivan did so in September. Early July is not September.
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1372. nigel20
Good evening friends!
Member Since: Posts: Comments:
1371. ncstorm
000
NOUS42 KNHC 061709
REPRPD
WEATHER RECONNAISSANCE FLIGHTS
CARCAH, NATIONAL HURRICANE CENTER, MIAMI, FL.
0115 PM EDT SAT 06 JULY 2013
SUBJECT: TROPICAL CYCLONE PLAN OF THE DAY (TCPOD)
VALID 07/1100Z TO 08/1100Z JULY 2013
TCPOD NUMBER.....13-036 AMENDMENT

I. ATLANTIC REQUIREMENTS....................................AD DED.
1. NEGATIVE RECONNAISSANCE REQUIREMENTS.
2. OUTLOOK FOR SUCCEEDING DAY.....NEGATIVE.
3. ADDITIONAL DAY OUTLOOK: POSSIBLE LOW-LEVEL INVEST
IN CENTRAL ATLANTIC NEAR 13.3N 57.3W FOR 09/1200Z.

II. PACIFIC REQUIREMENTS................................NO CHANGES.
1. NEGATIVE RECONNAISSANCE REQUIREMENTS.
2. OUTLOOK FOR SUCCEEDING DAY.....NEGATIVE.

$$
SEF
Member Since: Posts: Comments:
Quoting 1353. daddyjames:


Surface trough has already lifted off to the north. So.
_____
/ \
/ 94L \
| |
| RIP |
|_______|

Edit: Hmm, that did not work - should have previewed it, don't you think?



___


/...\


/ 94L \


|.....|


| RIP |


|_____|


Mine's even worse!
Member Since: August 4, 2007 Posts: 0 Comments: 3383
1369. sar2401
Quoting redwagon:
I just can't imagine what 6am will bring with 94L. RGB couldn't see the surface what with the hot mess, there could be a circulation at the sfc and we'd never know it.

Erick is feeding it energy and moisture hand over fist, and it did advance against the ridging out of TX. It's still active. Does anybody have idea other than RIP?


OK, in looking at this latest satellite IR, can you tell me exactly where 94L is? What is the RGB having a hard time seeing through? Not only did it not make progress aganst the Texas/Western ridge, the ridge is starting to advance out into the Gulf. The only substantial convection is over land. What's over the Gulf looks more like Swiss cheese. They've even dropped most of the flash flood watches over Georgia and Alabama as the blob is quickly weakening and moving north.

You must be seeing a lot I don't see.

Member Since: Posts: Comments:
Quoting 1365. MiamiHurricanes09:
Great ASCAT pass.

Yep lets see WINDSAT and OSCAT
Member Since: June 13, 2009 Posts: 2 Comments: 13577
Quoting 1364. LBAR:


Nah. It's moving too fast (as they typically do at those low latitudes) to devlop that quickly .

Ivan 04 formed that far S and was moving at about the same speed
Member Since: June 13, 2009 Posts: 2 Comments: 13577
Member Since: Posts: Comments:
Quoting 1341. stormpetrol:


Very very close to closing off.
Great ASCAT pass.
Member Since: Posts: Comments:
1364. LBAR
Quoting 1340. stormpetrol:
95L is going be something, like it or not, this tropical low imo is very near TD status. I can clearly see this becoming a TD/TS sometime tomorrow.


Nah. It's moving too fast (as they typically do at those low latitudes) to devlop that quickly .
Member Since: Posts: Comments:
Plus this ain't like last year where you had a lot of recurvatures
Member Since: June 13, 2009 Posts: 2 Comments: 13577
Would be sweet if Dalila fired convection again and remain a TD as she heads back towards Erick.
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1361. Gearsts
Quoting 1355. twistedfolks:
i can see the big hook recurve comming with 95l when it gets near puerto rico
Busting the ridge?
Member Since: Posts: Comments:
HURRICANE ERICK DISCUSSION NUMBER 11
NWS NATIONAL HURRICANE CENTER MIAMI FL EP052013
800 PM PDT SAT JUL 06 2013

THE PROXIMITY OF ERICK TO THE MOUNTAINOUS TERRAIN OF SOUTHWESTERN
MEXICO APPEARS TO BE TAKING SOME TOLL ON THE CYCLONE. RECENT
CONVENTIONAL SATELLITE IMAGERY AND MICROWAVE DATA SHOW THAT
THE CLOUD PATTERN AND INNER CORE STRUCTURE OF THE HURRICANE HAS
DEGRADED SOME THIS EVENING. HOWEVER...DVORAK CURRENT INTENSITY
NUMBERS REMAIN BETWEEN T4.0 AND T4.5...SO THE INITIAL INTENSITY
IS MAINTAINED AT 70 KT FOR NOW. ERICK HAS LIKELY PEAKED IN
INTENSITY SINCE LAND INTERACTION AND GRADUALLY DECREASING SSTS
SHOULD CAUSE A WEAKENING TREND TO COMMENCE WITHIN THE NEXT 24
HOURS. AFTER THAT TIME...ERICK WILL BE MOVING OVER PROGRESSIVELY
COLDER WATERS AND INTO A DRIER AND MORE STABLE ATMOSPHERE. THIS
SHOULD HASTEN THE RATE OF WEAKENING...AND ERICK IS FORECAST TO
BECOME A REMNANT LOW IN ABOUT 72 HOURS. THE UPDATED INTENSITY
FORECAST IS CLOSE TO THE PREVIOUS ADVISORY AND IS IN BEST AGREEMENT
WITH THE INTENSITY CONSENSUS ICON.

ERICK IS MOVING NORTHWESTWARD AT ABOUT 8 KT. THIS GENERAL MOTION
IS EXPECTED TO CONTINUE DURING THE NEXT 24 HOURS...AND THE MODEL
GUIDANCE IS IN GOOD AGREEMENT DURING THAT TIME. AFTER 24 HOURS...
THERE IS AN INCREASING AMOUNT OF SPREAD IN THE TRACK GUIDANCE
WITH THE ECMWF...HWRF...AND UKMET MODELS SHOWING A CONTINUED
NORTHWESTWARD MOTION TOWARD THE SOUTHERN PORTION OF THE BAJA
CALIFORNIA PENINSULA. MEANWHILE...THE GFS AND GFS ENSEMBLE MEAN
INDICATE A WEST-NORTHWESTWARD TURN WELL SOUTH OF THE BAJA
PENINSULA. FOR NOW THE NHC TRACK LIES BETWEEN THESE SCENARIOS AND
IS CLOSE TO...BUT SOUTH OF...THE MULTI-MODEL CONSENSUS.

BASED ON THE NEW FORECAST TRACK...THE GOVERNMENT OF MEXICO HAS
ISSUED A TROPICAL STORM WARNING FOR A PORTION OF BAJA CALIFORNIA
SUR.

FORECAST POSITIONS AND MAX WINDS

INIT 07/0300Z 18.7N 105.7W 70 KT 80 MPH
12H 07/1200Z 19.6N 106.8W 65 KT 75 MPH
24H 08/0000Z 20.8N 108.3W 60 KT 70 MPH
36H 08/1200Z 21.8N 109.9W 55 KT 65 MPH
48H 09/0000Z 22.9N 111.6W 45 KT 50 MPH
72H 10/0000Z 24.5N 115.5W 30 KT 35 MPH...POST-TROP/REMNT LOW
96H 11/0000Z 24.8N 119.0W 20 KT 25 MPH...POST-TROP/REMNT LOW
120H 12/0000Z...DISSIPATED

$$
FORECASTER BROWN
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SHE'S STILL ALIVE?

000
WTPZ34 KNHC 070249
TCPEP4

BULLETIN
TROPICAL DEPRESSION DALILA ADVISORY NUMBER 30
NWS NATIONAL HURRICANE CENTER MIAMI FL EP042013
800 PM PDT SAT JUL 06 2013

...DALILA ALMOST A REMNANT LOW...
Member Since: Posts: Comments:
1358. beell
Quoting 1346. redwagon:
I just can't imagine what 6am will bring with 94L. RGB couldn't see the surface what with the hot mess, there could be a circulation at the sfc and we'd never know it.

Erick is feeding it energy and moisture hand over fist, and it did advance against the ridging out of TX. It's still active. Does anybody have idea other than RIP?


Looking grim for rain. Especially well inland. The rebuilding western ridge looks like it's going to win the battle and keep most of the moisture off our (TX) coast.

Member Since: September 11, 2007 Posts: 152 Comments: 17991
Quoting 1355. twistedfolks:
i can see the big hook recurve comming with 95l when it gets near puerto rico

That's you
With that high stuck between Bermuda and the Carolina's it ain't gonna happen
Member Since: June 13, 2009 Posts: 2 Comments: 13577
BULLETIN
HURRICANE ERICK ADVISORY NUMBER 11
NWS NATIONAL HURRICANE CENTER MIAMI FL EP052013
800 PM PDT SAT JUL 06 2013

...CENTER OF ERICK STILL PARALLELING THE SOUTHWESTERN COAST OF
MEXICO...


SUMMARY OF 800 PM PDT...0300 UTC...INFORMATION
----------------------------------------------
LOCATION...18.7N 105.7W
ABOUT 95 MI...150 KM WSW OF MANZANILLO MEXICO
ABOUT 395 MI...640 KM SE OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...984 MB...29.06 INCHES
Member Since: July 6, 2010 Posts: 113 Comments: 34086
Quoting 1348. sar2401:

OK, I'll betcha a buck that it won't become a TD or TS by this time tomorrow.

Trust me you don't want to do this
Member Since: June 13, 2009 Posts: 2 Comments: 13577

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Dr. Masters co-founded wunderground in 1995. He flew with the NOAA Hurricane Hunters from 1986-1990. Co-blogging with him: Bob Henson, @bhensonweather

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