Dr. Jeff Masters' WunderBlog

96L disturbance hanging in there; F4 tornado confirmed in Missouri
Posted by: Dr. Jeff Masters, 01:52 PM GMT on September 26, 2006 +6
Well, it sure was great to watch a football game in the New Orleans Superdome last night, and not worry about a hurricane threatening the coast! The hurricane season of 2006 has been exceptionally kind to us by the standards of the past ten years, are there is nothing out there today that causes me any concern. The tropical wave (96L) we've been watching, about 900 miles east-northeast of the northern Lesser Antilles Islands, does has the potential to develop into a tropical depression, but is not expected to threaten any land areas. Wind shear has dropped from 30 knots yesterday to 20 knots today, and the system has been able to maintain more heavy thunderstorm activity near its center this morning. The storm is in a moist environment, and the ocean beneath is warm. The Canadian model is still the only model that develops the system into a tropical storm, but it appears that wind shear will drop another 5 knots over the next two days, potentially allowing 96L to organize into a tropical depression. Bermuda will need to keep an eye on this system, but I expect it will recurve out to sea before reaching the island.

Elsewhere in the tropical Atlantic, it's time to start watching the cloud-covered areas of the ocean surrounding the U.S. where cold fronts stall out. One such area to watch is off the North Carolina Outer Banks on Wednesday, when a tropical low could develop and scoot quickly northeastward out to sea. The more dangerous possibility is in the Gulf of Mexico or Western Caribbean near the Yucatan Peninsula early next week. A strong cold front is expected to push off the East Coast of the U.S. this weekend and stall over the Gulf of Mexico or Western Caribbean. The past few runs of the NOGAPS model have been predicting that if this front stalls out over the Western Caribbean, it could serve as a genesis area for a tropical storm. None of the other models are picking up on this, but this is a typical type of development we see in this region in October.


Figure 1. Preliminary models tracks for Invest 96L.

F4 tornado confirmed in Missouri
The National Weather Service confirmed yesterday that the second violent F4 tornado of the year occurred Friday. The 350 yard-wide tornado ripped through Crosstown, MO, injuring five. F4 tornadoes have winds speeds of 207-260 mph (there have been no F5 tornadoes with winds in excess of 260 mph reported in the U.S. since 1999). The weekend severe weather outbreak was the second largest of the year, with 59 tornadoes (including 40 on September 22). The other F4 tornado of 2006 also affected Missouri, when Monroe City got hit on March 12 as part of the biggest severe weather outbreak of the year--84 tornadoes over a 3-day span.

I'll have an update Wednesday morning.
Jeff Masters
Huge thunder head (wunderandrew)
SEVERE STORMS OVER ILLINOIS it did not storm were i live but there is another chance of severe weather tomorow
Huge thunder head
Categories: Tornado
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51. spongeworthy 03:24 PM GMT on September 26, 2006    
HaHaHaHa....Too Funny

Did you see the gopher in that shot. That was just too funny....LMAO
53. highndry 03:26 PM GMT on September 26, 2006    
okay, I may not know from hurricanes (although I'm learning thanks to you all), but from Tornadoes I KNOW. An F4 is BAD news. That's one of those house-goes-to-Oz type storms. I sure hope that was one was out in the sticks and only succeeded in scattering a few cornstalks around. The most amazing thing I ever saw was among tornado debris - I saw a playing card imbedded into a 2X4, no joke.
54. Melagoo 03:26 PM GMT on September 26, 2006    
I heard on the news that the earth's temperature is at it's highest in 1,000,000 years Dr. Gray your thoughts?
Member Since: Juli 31, 2006 Posts: 19 Comments: 1510
59. highndry 03:34 PM GMT on September 26, 2006    
golf, echo
61. Patrap 03:34 PM GMT on September 26, 2006    
Storm Surge ..Beau rivage...28-29th Aug 05Link
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63. Patrap 03:37 PM GMT on September 26, 2006    
A tropical tidbitLink
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64. robinvtx 03:44 PM GMT on September 26, 2006    
patrap your link was interesting and it said dr neil frank the then NHC director - one of our houston weathermen is dr neil frank. one in the same? unbelievable
66. Patrap 03:48 PM GMT on September 26, 2006    
Fujiwhara effectLink
Member Since: Juli 3, 2005 Posts: 372 Comments: 111605
67. gninraelyrt 03:50 PM GMT on September 26, 2006    
I don't like the sound of the world being hotter than normal. That can have a devastating effect on our ecosystem. Lakes can continue to dry up. Streams and rivers could digress to a trickles. Storms can become more ferocious, but less frequent leading to longer droughts that can kill crops. Many times hotter weather causes people to become more stressed or violent. Vehicles take a toll under hotter weather conditions. Don't get too depressed folks. Maybe another Ice Age is imminent in the whole scheme of things.
69. StormJunkie 03:52 PM GMT on September 26, 2006    
After noon All!

Been so busy lately. Will be very glad when move is over.

Thanks for the links Pat...Have gotten some great info from those links you post :)

See y'all later. Back to work.
SJ
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72. TheSnowman 03:55 PM GMT on September 26, 2006    
A TROPICAL DEPRESSION MAY FORM LATER TODAY OR WEDNESDAY.
73. gninraelyrt 03:56 PM GMT on September 26, 2006    
LOL Patrap - (Ice humor) :)
74. jake436 04:03 PM GMT on September 26, 2006    
The mass of clouds in the Caribbean, not yet impressive enough to be called a blob, is situated right about where this Link buoy is. As you can see, the pressures are high and rising. This is possibly atrributed to the extreme pressure being released from the city of New Orleans as soon as that punt was blocked for a touchdown early in the first quarter. Several subsequent pressure releases occurred throughout the game, and should serve to keep any low pressure away from the city for some time now. The entire region is on too much of a high to allow for any lows! ***This is not a professional meteorologists opinion-just a proud native son talking and walking on cloud nine! Thanks Saints, and thanks Saints fans for believing.
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76. Tazmanian 04:07 PM GMT on September 26, 2006    
her is what i am thinking 96L is at 21N 49W

97L is at 20N and 47W i hop this helps a little
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77. jake436 04:09 PM GMT on September 26, 2006    
97L is at 20N and 47W i hop this helps a little


97L doesn't exist, Taz. Read the Doc's 2:50 post.
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78. jake436 04:11 PM GMT on September 26, 2006    
Posted By: JeffMasters (Admin) at 2:50 PM GMT on September 26, 2006.

As far as I can tell, the Navy's designation of 97L is a mistake. NHC is only issuing model runs for 96L, and these were updated at 9am EDT this morning. The 97L model runs posted on hardcoreweather.com are old, there is nothing in the Caribbean to worry about today.

Jeff Masters



So you don't have to search for it...hope this helps.
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79. Tazmanian 04:13 PM GMT on September 26, 2006    
yes it dos 96L most be gone now

her


SUBJ/TROPICAL CYCLONE FORMATION ALERT 261200Z SEP 06//
RMKS/1. FORMATION OF A TROPICAL CYCLONE IS POSSIBLE WITHIN
200 NM EITHER SIDE OF A LINE FROM 20.0N 46.9W TO 24.0N 58.2W
WITHIN THE NEXT 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.
2. METSAT IMAGERY AND SYNOPTIC DATA AT 260600Z INDICATE THAT A 1009 MB
SURFACE LOW PRESSURE CENTERED NEAR 20.0N 47.0W IS CURRENTLY MOVING NORTHWEST
AT 10 KNOTS. WINDS IN THE AREA ARE ESTIMATED TO BE 20 TO 30 KNOTS
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING, CANCELLED OR EXPIRE BY
271200Z.//


96L is gone and now it is 97L 97L is at 20N and 47W
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80. Tazmanian 04:14 PM GMT on September 26, 2006    
there is a 97L
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82. jake436 04:15 PM GMT on September 26, 2006    
I'm gonna go ahead and take Dr. Masters side for now, if that's OK.
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84. Skyepony (Mod) 04:20 PM GMT on September 26, 2006    
From the Navy site....

96LINVEST.25kts-1011mb-214N-490W
97LINVEST.10kts-1009mb-200N-470W
now that they have diffent pics a coordinates up, for each, it is evident...new invest.

Taz wins the prize...
96L must of spawned

from the 8am
...SPECIAL FEATURE...
A 1009 MB SURFACE LOW PRESSURE CENTER IS NEAR 20.5N49W. THIS LOW
CENTER HAS BEEN DRIFTING NORTHWEST DURING THE LAST 24 HOURS OR
SO. NUMEROUS STRONG SHOWERS AND THUNDERSTORMS FROM 21N TO 24N
BETWEEN 45W AND 48W. OTHER POSSIBLE PRECIPITATION IS ELSEWHERE
FROM 20N TO 24N BETWEEN 40W AND 47W. ATMOSPHERIC CONDITIONS ARE
EXPECTED TO BECOME A LITTLE MORE FAVORABLE FOR DEVELOPMENT AND
A TROPICAL DEPRESSION MAY FORM LATER TODAY OR WEDNESDAY.
MT
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85. ihave27windows 04:22 PM GMT on September 26, 2006    
What about the models Skye....were they accurate?
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86. Skyepony (Mod) 04:23 PM GMT on September 26, 2006    
When Masters wrote that, the Navy site was showing the same pic & coordinates for both (I checked it out at the same time), came up with the same thing....that has changed though as they have seperate coordinates & pressures & winds....
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87. Skyepony (Mod) 04:26 PM GMT on September 26, 2006    
Most models on 96L missed the west movement for a bit, none saw the spawning...Gfdl now thinks it will live beyond 24 hrs...they have done better.

Also 96L has current info up on it as 97L is just getting it's 1st passes in...they are very close to one another.
Member Since: Agustus 10, 2005 Posts: 144 Comments: 29351
88. ihave27windows 04:30 PM GMT on September 26, 2006    
Thank you Skye....as you are probably aware, I don't tend to get in a tizzy about invests.....I like to consider my self comedic relief...but there is something about this one. Not sure why but I have a bad feeling about it.

Member Since: Juli 19, 2005 Posts: 108 Comments: 14642
89. jake436 04:32 PM GMT on September 26, 2006    
I only see one disturbance there...and it is 96L as far as I can tell. Taz can win, that's OK, but I don't see two disturbances. Give me a link that shows two seperate disturbances. I see that there are two seperate sets of coordinates, but I see nothing at one of them. I think the 20.5N 49.?W is possibly the LLC location, and the convection is seperate from it. But as stated before, I am not a meteorologist...in fact, I haven't even stayed at a cheap hotel lately.
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90. stormybil 04:34 PM GMT on September 26, 2006    
i dont see 2 either unless they talking about the little dot ,of red close to the islands at 20 n but its too small to be 97l ?
91. jake436 04:34 PM GMT on September 26, 2006    
...but there is something about this one. Not sure why but I have a bad feeling about it.


Think happy thoughts, you guys have Mario Williams!
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94. ihave27windows 04:37 PM GMT on September 26, 2006    
I'm sitting here thinking I should know who Mario Williams is.....Texan Rookie?

I don't get bad feelings very often Jake....but when I do.....
Member Since: Juli 19, 2005 Posts: 108 Comments: 14642
95. stormybil 04:39 PM GMT on September 26, 2006    
bad fellings about what 27 please share
97. Chicklit 04:39 PM GMT on September 26, 2006    
27Windows' barometer is dropping, ut oh, watch out!
Member Since: Juli 11, 2006 Posts: 14 Comments: 10254
98. Skyepony (Mod) 04:40 PM GMT on September 26, 2006    
97L look above big pic at coordinates, pressure & etc.

now 96L
Member Since: Agustus 10, 2005 Posts: 144 Comments: 29351
99. ihave27windows 04:40 PM GMT on September 26, 2006    
I love the Astros......the Texans embarrass me....I think I could offer Carr better pass protection than the overpaid neanderthals on the offensive line.
Member Since: Juli 19, 2005 Posts: 108 Comments: 14642
100. jake436 04:42 PM GMT on September 26, 2006    
Posted By: ihave27windows at 4:37 PM GMT on September 26, 2006.

I'm sitting here thinking I should know who Mario Williams is.....Texan Rookie?

I don't get bad feelings very often Jake....but when I do.....



Mario Williams is who the Texans passed on Reggie Bush to pick...kinda funny that you don't know who he is! #1 pick in the draft!

I hope your bad feelings aren't as accurate as mine. If you recall my post from a few days back, I told you I promised my parents about 21 years ago that I would never evacuate again. But as Katrina entered the Gulf, I made my plan and brought them with me and my wife and kids. I too had a bad feeling.
Member Since: Agustus 31, 2006 Posts: 0 Comments: 271
101. ihave27windows 04:42 PM GMT on September 26, 2006    
I can't say for sure Stormybil.....just a bad feeling. I'm not very good at identifying disturbances on the sat pics. It's just a gut feeling something bad is going to happen.
Member Since: Juli 19, 2005 Posts: 108 Comments: 14642

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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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