Dr. Jeff Masters' WunderBlog

Polish president dies in plane crash during heavy fog
Posted by: Dr. Jeff Masters, 4:06 PM GMT on April 10, 2010 +3
Always obey your air traffic controllers. That's the cardinal rule of of aviation, and one apparently violated by the pilot of the aircraft carrying the Polish president and dozens of the country's top political and military leaders, which crashed in heavy fog this morning near Smolensk, Russia. All 96 people aboard perished. According to the New York Times, air traffic controllers had recommended the president's jet land in nearby Minsk because of bad visibility, but the crew decided to land anyway. The Polish news channel TVN24 reported that moments before the crash, air traffic controllers had refused a Russian military aircraft permission to land, but that they could not refuse permission to the Polish plane. Russian media reported that the airplane's crew made several attempts to land before a wing hit the treetops and the plane crashed about half a mile from the runway.


Figure 1. a large patch of fog covers the Russian city of Smolensk and regions to the east in this visible light image captured by NASA's Terra satellite between 08:00 - 11:15 UTC Saturday, April 10, 2010. Image credit: NASA MODIS Rapid Response System, visualized using Google Earth.

At 10 am local time, near the time of the crash, the Smolensk airport reported heavy fog with visibility 0.5 km (3/10 of a mile). As seen in the satellite image taken near this time (Figure 1), a large bank of fog covered Smolensk and neighboring regions of Russia and Belarus.

Jeff Masters
Categories: Aviation
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201. Levi32 1:10 AM GMT on April 11, 2010    
Quoting gordydunnot:
Big Bermuda high kicking in not a good sign. Haven't seen that in a few years, hope it weakens before season gets going. Hopefully God will bless the Haitians this year. Tim very sorry to here about your immediate family, I hope they come up with some last minute help or answers. Its just hard to believe I have never heard of such a thing.
Quoting alexhurricane1991:
Gordydunnot that bermuda high is strong hopefully it weakens and we get fish storms galore like 1995 except no opal.


The Bermuda High is not strong right now. It's still weaker than normal. The NAO is positive because of a strong Icelandic Low during the past week, but pressures are still low across most of the Atlantic and the A/B High is certainly not stronger than normal.

MSLP Anomalies for the last 30 days:



MSLP Anomalies for the last 7 days:

Member Since: November 24, 2005 Posts: 586 Comments: 25450
202. homelesswanderer 1:12 AM GMT on April 11, 2010    
Quoting altesticstorm10:
Can anyone post the latest NAO+NAO prediction graph? I'm pretty sure the cooling over the last 4 days has resulted from the positive NAO that has existed over the past several days.

Unfortunately the NAO was expected to plummet starting today and should be negative by Monday; it was expected to remain well below the "neutral" line for a few weeks after that and remain negative possibly until the end of the month, and it is too early to predict but it may stay negative to and through the hurricane season.

With this impending NAO negative burst, we will see the Caribbean and MDR reach even higher highs than before, the Bahamas region/Florida Straits will heat up, and the Gulf will heat up to normal. With the NAO becoming negative once again the Gulf as well as everything else will explode.


That's one of the reasons I asked about getting stuck in a pattern. I have been hearing about the potentially negative NAO coming up. And like Keeper's graphics showing a ridge over the eastern U.S. Not a pattern we would want to get stuck in.
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204. alexhurricane1991 1:13 AM GMT on April 11, 2010    
Oh sorry levi im trying to learn.
Member Since: April 8, 2010 Posts: 15 Comments: 2543
205. Levi32 1:13 AM GMT on April 11, 2010    
Quoting alexhurricane1991:
Tropicsweatherpr or levi whats the soi index and whats it's significance?


It's an oscillation in the difference of sea-level pressures between Tahiti and Darwin. It is a good atmospheric indicator of what the ENSO is doing, and how the atmosphere is behaving over the equatorial pacific.

An El Nino features negative values of the SOI, which means pressures are lower around Tahiti in the central-eastern Pacific, and pressures are higher near Darwin in Australia and the western Pacific.
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206. indianrivguy 1:14 AM GMT on April 11, 2010    
Quoting troy1993:
In Hurricane Wilma..many people stated that the backside of Wilma was much worse than the frontside..does anyone have an explanation for this?


The picture Levi posted tells the story, here's a radar loop I have saved,

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207. Levi32 1:14 AM GMT on April 11, 2010    
Quoting alexhurricane1991:
Oh sorry levi im trying to learn.


No need to be sorry, I'm just helping to clarify things.
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208. alexhurricane1991 1:17 AM GMT on April 11, 2010    
Thanks levi so in upcoming seasons i will be looking at that more in depth than before i heard about it but didnt really know what the significance of it was.
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210. VAbeachhurricanes 1:22 AM GMT on April 11, 2010    
Quoting indianrivguy:


The picture Levi posted tells the story, here's a radar loop I have saved,



is it typical for radar stations to survive whole hurricanes?
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211. Stormchaser2007 1:29 AM GMT on April 11, 2010    
Looks like the El Nino will be sticking around longer than expected.

Still not dropping at all

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212. JRRP 1:34 AM GMT on April 11, 2010    
Quoting troy1993:
In Hurricane Wilma..many people stated that the backside of Wilma was much worse than the frontside..does anyone have an explanation for this?

the movement of the cyclones normally are from east to west that is why the strongest winds are in the east side, on the other hand when willma moved from west ocurrs the opposite
i think
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213. 47n91w 1:38 AM GMT on April 11, 2010    
Quoting StSimonsIslandGAGuy:
I wouldn't be surprised if it wasn't just fog that downed the airplane. Given Russia's past actions and Russia's present leadership. It just seems too perfect for Russia's interest, (keeping nearby countries divided and weak) and it happened over Russian territory. Anyway, that's all I'm gonna say about that.



My mind started wandering down this path too when I first read the news this morning. Always fun to play war games in your head over the first cup of coffee :) Never know where you might end up...
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214. indianrivguy 1:38 AM GMT on April 11, 2010    
Quoting VAbeachhurricanes:


is it typical for radar stations to survive whole hurricanes?


I am not sure how to answer that except perhaps that I have landfall radar loops of quite a few hurricanes and cannot recall any stations dropping of line. Pat has me hooked on relative velocity, so I've started saving them also
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215. JRRP 1:44 AM GMT on April 11, 2010    
el Niño 1998
the animation of hotspots during el Niño
1/3/98-6/6/98

look that el Niño said bye quickly in may
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216. homelesswanderer 1:45 AM GMT on April 11, 2010    
Quoting VAbeachhurricanes:


is it typical for radar stations to survive whole hurricanes?


I don't know how typical it is for radars to survive. Off the top of my head I can think of 2 that didn't survive. Rita knocked out the Lake Charles radar when she went over it. But they were able to get it back on line after she had moved away some. And probably no surprise Andrew destroyed the radar I'm assuming out of Miami.
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217. presslord 1:54 AM GMT on April 11, 2010    
Having cleared Spanish Wells in the Bahamas to port, the schooner Halie & Matthew is well on her way to Haiti. The crew is well. They were becalmed until about 2pm today, and used the time to clean the boat, and go for a swim. With the wind filling in, they are happy to be sailing once again.

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218. presslord 1:58 AM GMT on April 11, 2010    
Schooner Halie and Mathew Haiti Food Voyage Tracking Map
Link
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219. alexhurricane1991 2:07 AM GMT on April 11, 2010    
Hey presslord these people on the schooner are real heroes and hopefully they will have a smooth ride to give food to the haitians lord knows they need it. is it just food or is it other things for hygiene or blankets and such?
Member Since: April 8, 2010 Posts: 15 Comments: 2543
220. presslord 2:08 AM GMT on April 11, 2010    
Quoting alexhurricane1991:
Hey presslord these people on the schooner are real heroes and hopefully they will have a smooth ride to give food to the haitians lord knows they need it. is it just food or is it other things for hygiene or blankets and such?



several thousand pounds of other supplies...mostly medical related stuff...
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221. CybrTeddy 2:13 AM GMT on April 11, 2010    
Quoting Stormchaser2007:
Looks like the El Nino will be sticking around longer than expected.

Still not dropping at all



I find this very interesting, as the ENSO still continues to show Neutral in a few weeks. I think its pretty likely we'll see a substantial dropoff in El Nino very soon, because years its gotten the El Nino / La Nina generally right in terms of whether or not its going to be an El Nino or a La Nina year.
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222. xcool 2:14 AM GMT on April 11, 2010    
bye byeEl Nino
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223. SNOWARMER 2:16 AM GMT on April 11, 2010    
Having lived in Rio de Janeiro during the '70's, I can attest to the fury and dangers of tropical downpours falling on the nude granite domes around the city. Once, while driving from Ipanema to Sao Conrado along the coast in a downpour, I was almost hit by a large boulder washed from the bare granite slopes. WOW !!!!
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224. TampaSpin 2:17 AM GMT on April 11, 2010    
Please REad my Blog! Tragedy has struck our family this evening. I just don't want to hear of another as this could save your life or a loved one!
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225. alexhurricane1991 2:17 AM GMT on April 11, 2010    
Cyberteddy also the soi index is +1.3 so yeah when el nino falls it's going to drop.
Member Since: April 8, 2010 Posts: 15 Comments: 2543
226. Chicklit 2:19 AM GMT on April 11, 2010    
There was a symbolic reason for landing at Katyn. That's why the pilot landed in that fog.
There's a name for that.
It's in my public administration organization vocabulary which is inside the notebooks I'd better start studying for a final exam in two weeks.
Challenger redux.
Link
Something other than reason going on there.
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227. Stormchaser2007 2:22 AM GMT on April 11, 2010    
Quoting Levi32:


It's a strong peak marking the demise of the El Nino beginning in earnest now. The SOI is about to tank again into the negative, but not as low as before. It tends to go through its trends in a series of ups and downs.
Quoting alexhurricane1991:
Cyberteddy also the soi index is +1.3 so yeah when el nino falls it's going to drop.


Not for a bit of time though.
Member Since: June 9, 2007 Posts: 4 Comments: 15248
228. Skyepony (Mod) 2:26 AM GMT on April 11, 2010    
NITEROI, Brazil (AFP) - Rescuers have been racing against time amid fading hopes of finding survivors of a huge mudslide, with over 400 people now feared dead in some of the worst flooding to swamp Brazil in decades.

Rescuers painstakingly pulled bodies from the thick mound of dirt and debris in the Niteroi shantytown of Morro do Bumba late Friday and Saturday, bringing the death toll to 223.

Another 200 people were feared to have been buried alive in the slum, itself precariously perched atop a garbage dump in this city just east of Rio de Janeiro.

Some 60 hours after the heaviest rains in half a century unleashed floods and mudslides, rescue workers still were far from having finished the work of recovering bodies from beneath tonnes of rocks, rubble and earth.

The floods tore through the metropolitan area's precarious hillside slums, or favelas.

Niteroi was hardest hit, with at least 141 dead, according to the civil defense authorities. Across the bay, another 63 were found in Rio de Janeiro.

The heavy rain forced some 5 0,000 people to leave their homes, officials said, either because their homes were damaged or because they were ordered to leave due to fear of fresh landslides.

Geologist Marcelo Motta, who participated in an investigation of the mudslide, told Globo News television that two cracks in the rocky soil made the mound move and pushed down the hill a huge amount of trash saturated with water that had trapped methane gas. MORE....
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229. xcool 2:38 AM GMT on April 11, 2010    
my son be bad tooday
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230. CaribBoy 2:40 AM GMT on April 11, 2010    
Wet days ahead for the NE Caribbean according to the GFS.


Rainfall accumulation 0-180h


Notice the little "red ball" near the Northern Leewards indicating over 400mm of rain (16")! I doubt such amounts will be recored, but the trend is for a much wetter pattern, otherwise welcomed rain...

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231. alexhurricane1991 2:40 AM GMT on April 11, 2010    
Quoting xcool:
my son be bad tooday
What do you mean?
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232. alexhurricane1991 2:44 AM GMT on April 11, 2010    
Thank god caribboy you guys despretely need all the rain you can get.
Member Since: April 8, 2010 Posts: 15 Comments: 2543
233. Chicklit 2:45 AM GMT on April 11, 2010    
Quoting presslord:
Schooner Halie and Mathew Haiti Food Voyage Tracking Map
Link


Cool, thanks for posting Paul.
Member Since: July 11, 2006 Posts: 14 Comments: 10254
234. Levi32 3:00 AM GMT on April 11, 2010    
Quoting Stormchaser2007:


Not for a bit of time though.


It's already going back down. It will take a couple days to reflect in the 30-day moving average.
Member Since: November 24, 2005 Posts: 586 Comments: 25450
235. xcool 3:01 AM GMT on April 11, 2010    
he . fighting He's sleep....
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236. cchsweatherman 3:03 AM GMT on April 11, 2010    
Good evening everyone! I hope everyone is doing good and things have been civil here on the blogs.

In looking at recent computer model runs and the current pattern developing across Florida, it seems we're entering a transition into possibly the rainy season as moisture begins to work in from the east across the area and humidity begins to rise. With a disturbance coming across the Gulf of Mexico tonight, there will be scattered showers and storms throughout the day tomorrow over Florida, especially South-Central Florida. After this, a pretty persistent and strong easterly flow develops over Florida bringing in daily shower and even storm chances starting overnight and the morning across eastern portions and spreading inland and in the western portions in the afternoon. This weather pattern typically heralds the imminent arrival of the rainy season to Florida.
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237. Stormchaser2007 3:04 AM GMT on April 11, 2010    
Quoting Levi32:


It's already going back down. It will take a couple days to reflect in the 30-day moving average.

Yup's looks that way.
Daily's:
-----------------------------------------
28-Mar-2010 1009.89 1006.40 -2.97 -11.03 -12.13
29-Mar-2010 1011.51 1006.20 5.74 -11.52 -12.23
30-Mar-2010 1012.15 1006.40 7.85 -11.41 -12.17
31-Mar-2010 1011.69 1005.95 7.80 -10.93 -12.23
1-Apr-2010 1011.05 1006.55 15.21 -10.01 -12.19
2-Apr-2010 1012.24 1006.65 23.07 -8.39 -12.03
3-Apr-2010 1013.20 1007.65 22.78 -6.87 -11.83
4-Apr-2010 1013.58 1007.60 25.88 -4.83 -11.70
5-Apr-2010 1013.01 1006.85 27.18 -2.82 -11.52
6-Apr-2010 1013.40 1007.05 28.55 -1.10 -11.17
7-Apr-2010 1013.93 1008.40 22.64 0.17 -10.85
8-Apr-2010 1013.90 1009.80 12.33 1.07 -10.60
9-Apr-2010 1012.91 1009.70 5.91 1.82 -10.28
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238. Chicklit 3:12 AM GMT on April 11, 2010    
Nothing in the lower levels from 15N.

Atloop
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239. xcool 3:14 AM GMT on April 11, 2010    
Dr. Rick Knabb
taking his spot on The Weather





replacement
Lyons

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241. alexhurricane1991 3:45 AM GMT on April 11, 2010    
Is anyone still on here?
Member Since: April 8, 2010 Posts: 15 Comments: 2543
242. melwerle 3:47 AM GMT on April 11, 2010    
Tampa - my prayers are with you and your family...it's not been an easy year for you.
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243. gordydunnot 3:49 AM GMT on April 11, 2010    
Your right Levi I was looking at Keepers 150 post and it seemed like a large high to me. Also the high over the east coast, it just looked like a bad scenario if it was in August or Sept.. Also someone asked why the temps. dropped in the Caribbean, I thought that posting (150) might be an explanation, my bad.
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244. FLWeatherFreak91 4:03 AM GMT on April 11, 2010    
Quoting alexhurricane1991:
Is anyone still on here?
I'm here
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245. ycd0108 4:10 AM GMT on April 11, 2010    
Chicklit:
Umhum.
T'anks god the pilots I have ridden with so far did not make the choice this pilot did. I'll be happy to ride a bus from Moscow (or wait for weather on this coast)
Best ride:
Float plane out of Loughbourough Inlet went north and ground his way up through a pass to Bute (this plane augered in a week or so later)
Worst ride:
London Luten coming in from Istanbul. Rough air and I'm looking at the tarmac - wheels down
Wham! the boys up front put the hammer down and pulled out (Boing 737 so STOAL) Pilot comes on the intercom and says calmly:
"We are going to fly around for a while and when things calm down we will get you to the Gate"
Next time we came in the brakes were on before we touched down.
I like that in an aircrew
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246. alexhurricane1991 4:13 AM GMT on April 11, 2010    
Hey flweatherfreak91 how are you doing im telling you this website is so awesome the people are so knowledgable and very freindly.
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247. KEEPEROFTHEGATE (Mod) 4:29 AM GMT on April 11, 2010    
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248. taco2me61 4:30 AM GMT on April 11, 2010    
Yelp I'm still here too,
Although I'm just checking in to check radars
and see what or when the rain will be coming....

Taco :0)
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249. alexhurricane1991 4:50 AM GMT on April 11, 2010    
Hello?
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250. wunderkidcayman 5:01 AM GMT on April 11, 2010    
hey Alex are you ok
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251. alexhurricane1991 5:06 AM GMT on April 11, 2010    
Yeah im fine wunderkidcayman in fact im doing great!
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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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