Dr. Jeff Masters' WunderBlog |
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| Posted by: Dr. Jeff Masters, 11:26 AM GMT del 19 Aprile 2012 | +26 |
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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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I say B :)
Yeah, that is what I kind of suspected. We can certainly use the rain though!
I'd say a very good chance at SPC issuing a slight risk of Severe Weather for tomorrows Day 2 outlook for Saturday. This is still looking to be an overnight event so it can be dangerous. Probs around 15% to 30%, nothing more though. 30% really would be due to very strong winds.
What do you mean?
It depends on which local forecaster you speak of. There are a few MET's here in Tampa Bay that are very good whom I trust as a source, and they agree with the NWS. They are playing it safe and mentioning severe but aren't going overkill or hyping anything, they are definitely more concerned about accurate science rather than ratings and hype. Which is also why the NWS is playing it safe. I'm not saying there still isn't a chance of significant severe but it looks to be less than what it seemed yesterday and previously.
I actually think the death happened several years ago, but without Facts, we will never know for sure.
For example, missing the context of time in reading an essay written in 1910. The current generation (not everyone, but over 50%) can`t understand that the time period and cultural attitudes sometimes change the meaning of what is being communicated through the essay. The same occurs in research with not understanding the methodology and therefore not understanding the limitations of what is being shown. With the drought maps, not understanding that it isnt just a rainfall deficit, but rather a cumulative effect of rainfall, soil moisture, etc that all comes together to paint a more variable intensive and accurate picture of whats occurring. I hope I`m maikng sense today :)
Well yes and no. Understanding context is just one variable involved in critical thinking, albeit and important one.
The snipped-out part was short, sweet, and sensible. However...
192 washingtonian: Lol at the title of the blog.
"Southeast U.S. drought: another Tropical Storm Alberto needed" so ya don't hafta scroll up. Albertos have a history of being mild. Kinda like wishing last year that Bob would break the TexasHigh drought.
I know that there are other factors, but warm SSTs are a big one. I'm simply hoping for rain and tropical storms bring rain. In my town, everyone hopes we get a flood warning when we need rain badly. If wishcasting isn't accepted and apparently asking an opinion or fact that someone knows(its happened alot of times to me here before), then I won't say anything.
NATIONAL WEATHER SERVICE MELBOURNE FL
438 PM EDT THU APR 19 2012
FLZ047-054-147-192130-
INDIAN RIVER-NORTHERN BREVARD COUNTY-SOUTHERN BREVARD COUNTY-
438 PM EDT THU APR 19 2012
...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 40 AND 50 MPH AND SMALL HAIL OVER BREVARD COUNTY...INDIAN
RIVER COUNTY...
* UNTIL 530 PM EDT.
AT 434 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STORMS CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL FROM
CANAVERAL GROVES TO 8 MILES SOUTHWEST OF BLUE CYPRESS LAKE...MOVING
EAST AT 10 MPH. THESE CELLS WILL EVENTUALLY MOVE OFF THE EAST COAST
OF BREVARD AND INDIAN RIVER COUNTIES AND ACROSS THE INTRACOASTAL AND
NEAR SHORE WATERS OF THE WESTERN ATLANTIC.
LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS
AND SMALL HAIL INCLUDE INDIAN HARBOUR BEACH...MELBOURNE
BEACH...MICCO...VIERA...ROCKLEDGE AND VERO LAKE ESTATES.
THE PRIMARY THREAT WILL BE OCCASIONAL CLOUD TO GROUND LIGHTNING
STRIKES AND GUSTY WINDS OF 40 TO 50 MPH...WHICH CAN CAUSE UNSECURED
OBJECTS TO BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES.
HEAVY RAINFALL WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER
INDOORS UNTIL THE STORM PASSES.
TORRENTIAL RAINFALL CAN BE EXPECTED...CAUSING TEMPORARY PONDING ON
SOME ROADS AND MINOR FLOODING OF POOR DRAINAGE AREAS. MOTORISTS
SHOULD SLOW DOWN IN HEAVY RAINFALL TO REDUCE THE RISK OF HYDROPLANING
AND LEAVE SAFE DISTANCE BETWEEN OTHER VEHICLES.
LAT...LON 2757 8078 2764 8078 2764 8083 2854 8088
2856 8079 2854 8077 2854 8074 2858 8073
2862 8060 2859 8057 2845 8052 2842 8057
2836 8060 2813 8057 2775 8038 2756 8032
TIME...MOT...LOC 2036Z 272DEG 13KT 2843 8082 2815 8074
2764 8082
$$
SEDLOCK
Mixing Seawater and Nuke Fuel: Still Murky
A year since Fukushima, scientists still aren't sure what you get when nuclear fuel is doused with sea water.
http://news.discovery.com/tech/fukushima-sea-wate r-nuclear-fuel-120308.html
Nuclear fuel at Fukushima was largely uranium oxide (UO2), with a small portion of the fuel containing plutonium. The cladding of the fuel rods is made of zirconium alloy.
When the water pumps failed, the temperature in the core got hot enough for the zirconium alloy to react with the water, which released hydrogen. That caused the reactor buildings to explode, because hydrogen reacted violently with the oxygen in the air.
In addition, several radioactive byproducts were released into the air and groundwater, such as iodine and cesium.
When the seawater hit the reactor core, it heated up and evaporated. That likely left salt deposits. Another factor was the extreme heat near the fuel rods. Burns said at those temperatures and in the presence of radioactivity seawater can form peroxides, which are even more likely to react with the elements in the core and do so differently from water.
Yeah... I was being a bit cranky.
My apologies for coming across cranky - it was out of line, and please accept my apology.
I misinterpreted your post as someone wishcasting a storm at them, as opposed to you asking a genuine question. So... my bad, continue on, please.
Nuclear fuel not affected by sea water?
How sea water could corrode nuclear fuel
January 26, 2012
Spherical image made up of clusters of panels
The individual panels on this buckyball image are made up of uranium and oxygen atoms. These clusters form when seawater corrodes nuclear fuel. (Ginger Sigmon/University of Notre Dame image)
Japan used seawater to cool nuclear fuel at the stricken Fukushima-Daiichi nuclear plant after the tsunami in March 2011 -- and that was probably the best action to take at the time, says Professor Alexandra Navrotsky of the University of California, Davis.
But Navrotsky and others have since discovered a new way in which seawater can corrode nuclear fuel, forming uranium compounds that could potentially travel long distances, either in solution or as very small particles. The research team published its work Jan. 23 in the journal Proceedings of the National Academy of Sciences.
“This is a phenomenon that has not been considered before,” said Alexandra Navrotsky, distinguished professor of ceramic, earth and environmental materials chemistry. “We don’t know how much this will increase the rate of corrosion, but it is something that will have to be considered in future.”
Japan used seawater to avoid a much more serious accident at the Fukushima-Daiichi plant, and Navrotsky said, to her knowledge, there is no evidence of long-distance uranium contamination from the plant.
Uranium in nuclear fuel rods is in a chemical form that is “pretty insoluble” in water, Navrotsky said, unless the uranium is oxidized to uranium-VI — a process that can be facilitated when radiation converts water into peroxide, a powerful oxidizing agent.
Peter Burns, professor of civil engineering and geological sciences at the University of Notre Dame and a co-author of the new paper, had previously made spherical uranium peroxide clusters, rather like carbon “buckyballs,” that can dissolve or exist as solids.
In the new paper, the researchers show that in the presence of alkali metal ions such as sodium — for example, in seawater — these clusters are stable enough to persist in solution or as small particles even when the oxidizing agent is removed.
In other words, these clusters could form on the surface of a fuel rod exposed to seawater and then be transported away, surviving in the environment for months or years before reverting to more common forms of uranium, without peroxide, and settling to the bottom of the ocean. There is no data yet on how fast these uranium peroxide clusters will break down in the environment, Navrotsky said.
Navrotsky and Burns worked with the following co-authors: postdoctoral researcher Christopher Armstrong and project scientist Tatiana Shvareva, UC Davis; May Nyman, Sandia National Laboratory, Albuquerque, N.M.; and Ginger Sigmon, University of Notre Dame. The U.S. Department of Energy supported the project.
http://www.news.ucdavis.edu/search/news_detail.la sso?id=10131
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
454 PM EDT THU APR 19 2012
FLZ043-050>052-055>057-060>062-GMZ830-853-856-873 -876-192200-
SUMTER-PINELLAS-HILLSBOROUGH-POLK-MANATEE-HARDEE- HIGHLANDS-
SARASOTA-DE SOTO-CHARLOTTE-TAMPA BAY WATERS-
ENGLEWOOD TO TARPON SPRINGS OUT 20 NM-
BONITA BEACH TO ENGLEWOOD OUT 20 NM-
ENGLEWOOD TO TARPON SPRINGS OUT 20 TO 60 NM-
BONITA BEACH TO ENGLEWOOD OUT 20 TO 60 NM-
451 PM EDT THU APR 19 2012
.NOW...
WIDELY SCATTERED SHOWERS AND THUNDERSTORMS...MOSTLY OVER
COASTAL WATERS...WILL CONTINUE TO MOVE NORTHEAST ACROSS THE
REGION. EXPECT BRIEF PERIODS OF HEAVY RAIN...OCCASIONAL
LIGHTNING...AND WIND GUSTS IN AND NEAR THE STRONGER STORMS.
MARINERS CAN EXPECT A LIGHT TO MODERATE CHOP ON THE WATERS.
$$
LEWIS
I say D...late June to early July...
How come you think so late?
I'm sorry too sir. I should keep my opinions to myself. I'll promise never to wishcast again.
Thanks for that.
It's very good. And so True!
Scientists: First time radioactive silver detected in ocean — Radioactivity levels in seawater are not diminishing as hoped — “Reactor site still seems to be leaking; it hasn’t shut off”
http://www.fis.com/fis/worldnews/worldnews.asp?l= e&country=0&special=&monthyear=&day=&id=50221&ndb= 1&df=0
Radioactive Tellurium-129m detected in seawater for first time — Short 34 day half-life indicates new leak
http://www.nti.org/search/?q=Radioactive+Telluriu m
Nature Study: Long-term plutonium dose assessment needed after Fukushima — Concerns about Americium-241 also — Deposition south of plant, not only northwest
http://www.nature.com/srep/2012/120308/srep00304/ full/srep00304.html
Highest yet: 3,355 times legal limit of radioactive iodine-131 found in seawater — Reactor cores may have been continuously leaking into Pacific
http://enenews.com/highest-3355-times-legal-limit -radioactive-iodine-131-found-seawater-reactor-cor es-continuously-leaking-pacific
BBC: 4,000 Bq/m3 of cesium detected in OCEAN water at least 30 km from Fukushima coast
If you meet the Buddha upon the road, Joe'sAutoBody can fix the dents. -- Sidheartist
Here's hoping all that moisture is finding someplace else to go besides Puerto Rico...like, er, South Florida!
Nice to see everyone again.
- The Buddha ,,,,:)
This is as bad as it gets for Florida according to the NAM12...which isn't bad at all.
Hey,
Nothing much going on. Thought hoping for some rain here in southern Florida.
NATIONAL WEATHER SERVICE JACKSONVILLE FL
555 PM EDT THU APR 19 2012
FLC019-107-192230-
/O.CON.KJAX.SV.W.0035.000000T0000Z-120419T2230Z/
CLAY FL-PUTNAM FL-
555 PM EDT THU APR 19 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHERN PUTNAM AND SOUTHERN CLAY COUNTIES...
AT 555 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED OVER
CENTRAL CLAY COUNTY...OR 16 MILES NORTHEAST OF MELROSE...MOVING
SOUTHEAST AT 10 MPH.
THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.
&&
LAT...LON 2988 8196 2997 8192 2994 8169 2974 8184
2981 8198
TIME...MOT...LOC 2155Z 293DEG 9KT 2989 8189
$$
ENYEDI
That's an impressive area of convection in west Africa... I don't know if 91L still exists or not.
Link
Certainly not a bad purchase... although can get kinda pricy for the single person users. Probably geared toward folks in decision support roles more. Just wait until a big storm outbreak or a tropical event, then you'll really be excited to have it.
Lucky! You must be filthy rich to be able to buy all these pricey programs. I would be lucky if I end up getting GR2Analyst anytime soon.
These events aren't actually that rare in April even though it is the dry season. Often during this time of year in the Spring most of the rain for the whole month will come from one big rain event.
We had more impressive frontal events than this will probably be many times before including last Spring. In late April last year a severe outbreak produced several tornadoes around Tampa Bay and between 5 and 9 inches around this area. While I think this system will bring a good soaking rain, I don't think we will see an outbreak of tornadoes or 9 inches of rain. This will just be one of the bigger systems we normally get every Spring. We have been well below normal for months even for the dry season so its about time we get some action.
Now if we had a major tornado outbreak including strong tornadoes of F2 or greater, widespread squall line winds at 65 to 75 mph, and golf ball size hail, that would be a rare event. That is rare. We have had those before but they are quite rare, such events are more common in the plains where frontal systems typically are much stronger.
In fact generally speaking, even "strong" frontal systems in Florida that produce severe weather in Florida are weaker than their plains counter parts during the Spring. The reason we can occasionally get severe outbreaks here is usually due to strong surface support like high surface instability and very high moisture and lots of thermal energy from a combination of stronger sun light and warmer waters in the gulf, which make up for the lack of strength in the actual system moving through. This makes severe weather harder to predict and thus moderate risks are higher are even more rare than actual severe events because issuing one requires higher confidence in the event actually happening.
NATIONAL WEATHER SERVICE JACKSONVILLE FL
629 PM EDT THU APR 19 2012
FLC107-109-192300-
/O.CON.KJAX.SV.W.0036.000000T0000Z-120419T2300Z/
PUTNAM FL-ST. JOHNS FL-
629 PM EDT THU APR 19 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CENTRAL ST. JOHNS AND NORTHEASTERN PUTNAM COUNTIES...
AT 630 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTH OF BOSTWICK TO
BOSTWICK TO CARRAWAY...OR ALONG A LINE EXTENDING FROM 14 MILES
NORTHWEST OF HASTINGS TO 9 MILES NORTH OF PALATKA TO 11 MILES
NORTHWEST OF PALATKA...MOVING EAST AT 15 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BOSTWICK AND HASTINGS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.
&&
LAT...LON 2967 8176 2976 8188 2984 8179 2984 8164
2985 8151 2971 8150
TIME...MOT...LOC 2230Z 282DEG 12KT 2986 8165 2977 8167
2976 8178
$$
ENYEDI
"Instead of extracting materials from inside the Earth, the Oklahoma wells in question are designed to deliver fluids down into it. Fluid injection is used to get rid of industrial wastewater that might contaminate drinking water if it were disposed of at the surface, or to ease oil along through fractures in the Earth to a spot that is more accessible."
... Slight risk of severe thunderstorms over portions of south
Texas Friday...
There is a slight risk for severe thunderstorms Friday afternoon
and early evening over south Texas... as a strong cold front moves
into the area. The cold front is expected to move through San
Antonio around noon... reaching the coast around 6 PM. A line of
showers and thunderstorms is expected to develop along the front.
Some storms could be severe... producing large hail and damaging
straight-line winds... especially across the northeastern portions
of south Texas.
At this time... the primary concern for severe weather is generally
near... north and east of a line from near Chapman Ranch... to
Alice... to Tilden to cross. The atmosphere is forecast to be very
unstable over the region as the front moves through. However... a
strong cap may limit storm development along the southern line in
the Corpus Christi area.
Because of the fast movement of this system... no excessive
rainfall or flooding is expected. Rainfall totals will average
from one tenth of an inch or less over the brush country and near
Laredo... to around 1/2 inch along the coast between Corpus Christi
and Port Lavaca. Isolated amounts around 1 inch are also possible
especially along the coast.
Windy conditions will develop across south Texas in the wake of
the front Friday night and Saturday... as much cooler air filters
into the region. Northwest winds of 20 to 25 mph with gusts to 35
mph can be expected... especially along coastal areas. The
combination of strong winds and low humidity values will result in
elevated fire weather conditions on Saturday. Small Craft Advisory
conditions are also expected for the bays and Gulf waters... with
gusts near gale force possible over the offshore Gulf waters.
Residents and mariners should begin preparing for developing
weather situation. Keep informed on the latest forecasts from the
National Weather Service. Keep informed on possible watches or
warnings by listening to NOAA Weather Radio... commercial radio or
television. You can also visit our website at...
Www.Weather.Gov/corpuschristi
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