Dr. Jeff Masters' WunderBlog |
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| Posted by: Dr. Jeff Masters, 13:28 GMT le 13 juin 2007 | +3 |
F5: Devastation, Survival, and the Most Violent Tornado Outbreak of the 20th Century tells a story from the world's most violent tornado outbreak on record--the April 4, 1974 Super Outbreak. The Super Outbreak featured the most tornadoes ever recorded in a single day, 148, and also had an unprecedented number of violent F4 and F5 tornadoes--six F5 tornadoes and 24 F4 tornadoes (for comparison, the past five years have had one F5 tornado and 15 F4 tornadoes.)| Permalink | A A A |
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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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is that New York Mets? LOL
For tropical systems...we go inline with the GFS and GFDL UNLESS we feel another model has a good handle on the situation down there.
The ECMWF is decent for long range.
The rain has begun in my neck of the woods. I live in Pinecrest
Pinecrest ca????
i sure dont see any rain her today
Mesoscale Discussion 1144
Drak, you may be on to something in your last image.
:)
Umm, yea I was saying what you can see in Draks drawing.
The 12z GFS is not nearly as aggressive as the CMC with the second piece of surface energy.
If people want to disregard the NHC or the NWS and take what people say in the forums...they are greatly mistaken.
Drak, I think that upper low is what will eventually recurve the southern piece of energy to the N and NNW for a period of time. after it crosses Fla. Still want to see a few more model runs, with the understanding that the time frame would be much slower on the southern portion it will be interesting to watch.
yes the CMC indicates a turning into Georgia after crossing FL. Just remember guys the SST temperature near the shoreline are way above average so i could develop more as it approaches land.
And no shear anywhere near the system in this 144hr forecast. I know that is a long way out, but should something even similar to this pan out it could get interstesting for Sav to the Obx. Sure wish we had the 12z GFS on the FSU page...
Drakoan - that one near Belize - think it will develop?
its the favored area at this point. With the heaviest newest convection.
NWS hasnt had a good handle on what? OK THIS IS WHY METEOROLOGIST DONT POST ON FORUMS THAT OFTEN...first off the NWS dont forcast tropcial systems.. the NHC does. The NHC Has had a great record. Unless you want a system to hit your house..you might bash the NHC for it.
If people want to disregard the NHC or the NWS and take what people say in the forums...they are greatly mistaken.
hey scott
if it helps
i for one listen to VERY LITTLE of what i read here as far as planning
but i do come here for the educated guesses
and you can usually tell which guesses are educated
I feel these forums are for people who can post up things like..new data recieved from recons...posting links to model runs...showing sat data or posting bulletins on watches and warnings on all types of weather and finally getting information released by the NWS and the NHC so people dont have to surf the web (if they dont know all the links of where to go). I would say its not a good place to educate someone cause there are alot of posers who hype up things or say this and that and really dont know what in the world they are talking about...and they are just wishcasting. The best for education is reading offical books or getting info from real Mets.
the key word in my statement was educated GUESSES
i think anyone with any sense in the time of crisis will listen to LOCAL forecasters
HEY SJ!!!
before its up at the navy site or the nhc site its great first hand info with these guys they work hard calling the systems and are ussally right . keep up the great work everyone .
anybody want to comment on the ULL weakening and moving SSW?
still look strong to me. the SSW motion should change to a more northerly motion, bringing the upper level diffluence along with it.
The reason why the blog is always right about calling invest and storms is because some people call even a thunderstorm the next hurricane.........
lol. true...
interesting feature of the day is a large area of cloudiness and
showers over the NW Caribbean associated with a broad area of
low pressure and sfc trough extending from extreme W Cuba to the
Gulf of Honduras. A diffluent pattern aloft associated with a
ridge/anticyclone centered near 15n85w is enhancing this
convective activity that is spreading over the Cayman Islands
and E-central Cuba. A near 60 nm wide band of moderate to
isolated strong convection is also east of the sfc low/trough
and extends from the Atlc coast of Nicaragua all the way N to
20n83w. A 1009 mb sfc low is analyzed on the 1200 UTC surface
map near 19n86w. This low is forecast to slowly drift northward.
from the 2:05 discussion
The bottom line is one thing that makes these systems so interesting to watch is that they are fairly unpredictable.
Sorry for not replying to you but I was away from my computer
INTERESTING FEATURE OF THE DAY IS A LARGE AREA OF CLOUDINESS AND
SHOWERS OVER THE NW CARIBBEAN ASSOCIATED WITH A BROAD AREA OF
LOW PRESSURE AND SFC TROUGH EXTENDING FROM EXTREME W CUBA TO THE
GULF OF HONDURAS. A DIFFLUENT PATTERN ALOFT ASSOCIATED WITH A
RIDGE/ANTICYCLONE CENTERED NEAR 15N85W IS ENHANCING THIS
CONVECTIVE ACTIVITY THAT IS SPREADING OVER THE CAYMAN ISLANDS
AND E-CENTRAL CUBA. A NEAR 60 NM WIDE BAND OF MODERATE TO
ISOLATED STRONG CONVECTION IS ALSO EAST OF THE SFC LOW/TROUGH
AND EXTENDS FROM THE ATLC COAST OF NICARAGUA ALL THE WAY N TO
20N83W. A 1009 MB SFC LOW IS ANALYZED ON THE 1200 UTC SURFACE
MAP NEAR 19N86W. THIS LOW IS FORECAST TO SLOWLY DRIFT NORTHWARD.
UPPER-LEVEL WINDS ARE NOT FAVORABLE FOR DEVELOPMENT. A PLUME OF
MID-HIGH LEVEL CLOUDINESS AND POSSIBLE SHOWERS IS STREAMING BY
WSW UPPER LEVEL WINDS ACROSS THE NW CARIBBEAN AND CUBA INTO THE
W ATLC. THE TYPICAL LOW OVER NORTHERN COLOMBIA IS PRODUCING SOME
SHOWERS AND ISOLATED TSTMS JUST OFF THE COLOMBIA COAST. COSTA
RICA AND PANAMA ARE UNDER THE INFLUENCE OF THE EPAC ITCZ. TRADE
WIND SHOWERS ARE POSSIBLE ACROSS THE REMAINDER OF THE BASIN. TWO
TROPICAL WAVES ARE ALONG 60W AND 70W. SEE TROPICAL WAVE SECTION
FOR DETAILS.
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