Ginx snewx Posted July 19, 2013 Share Posted July 19, 2013 haven't seen euro weeklies but heard they look AOB going forward as well. CFS is certainly cooler than normal (week 2 shown...but pretty similar throughout) and argues for the heat dome that is in the process of shifting west to shrink further and general mean troughing to persist over the northeast / lakes / ohio valley. cmc ens basically locks in lower heights through new england and keeps them there for 2 weeks straight. would be nice to get a more active weather pattern out of it. heat is fun and all to track...but i'm all set. cfs_weeklies.jpg great post Link to comment Share on other sites More sharing options...
HoarfrostHubb Posted July 19, 2013 Share Posted July 19, 2013 Sitting in the shade with a Coke Zero and a bit of a breeze Not bad at all. Working in this would blow though Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 I wonder if the Texas A&M atmos. sciences ob source differs from NWS... They are reporting 72 dp at 3:54 and NWS has 71 for the same time: The weather observed at BOSTON, MA (KBOS) at 03:54 PM EDT was:The skies were partly cloudy.Temperature: 97F ( 36C) Dewpoint: 72F ( 22C) Relative Humidity: 44%Winds from the SW (240 degs) at 20 mph.Pressure: 1006.9 millibars. Altimeter:29.74 inches of mercury.The prevailing visibility was 10 miles. -vs- 191954 FEW060 SCT180 10 97 71 2417G25 G 32 069 Link to comment Share on other sites More sharing options...
ORH_wxman Posted July 19, 2013 Share Posted July 19, 2013 I wonder if the Texas A&M atmos. sciences ob source differs from NWS... They are reporting 72 dp at 3:54 and NWS has 71 for the same time: The weather observed at BOSTON, MA (KBOS) at 03:54 PM EDT was: The skies were partly cloudy. Temperature: 97F ( 36C) Dewpoint: 72F ( 22C) Relative Humidity: 44% Winds from the SW (240 degs) at 20 mph. Pressure: 1006.9 millibars. Altimeter:29.74 inches of mercury. The prevailing visibility was 10 miles. -vs- 191954 FEW060 SCT180 10 97 71 2417G25 G 32 069 The NWS one is correct from what I have seen regarding actual temps. Dewpoints are less precise than temps though too, so its really just a trivial matter on which one is "correct". Link to comment Share on other sites More sharing options...
weathafella Posted July 19, 2013 Share Posted July 19, 2013 this is going to be a horrible night to be in a city. BOS will probably be sitting at like 88F at 10PM. Launching pad at Fenway tonight. I went to a Yankee ge about 50 years ago and it was a very hot night. Jim Bouton lost 9 lbs of water wt. Link to comment Share on other sites More sharing options...
Tropopause_Fold Posted July 19, 2013 Share Posted July 19, 2013 I wonder if the Texas A&M atmos. sciences ob source differs from NWS... They are reporting 72 dp at 3:54 and NWS has 71 for the same time: The weather observed at BOSTON, MA (KBOS) at 03:54 PM EDT was: The skies were partly cloudy. Temperature: 97F ( 36C) Dewpoint: 72F ( 22C) Relative Humidity: 44% Winds from the SW (240 degs) at 20 mph. Pressure: 1006.9 millibars. Altimeter:29.74 inches of mercury. The prevailing visibility was 10 miles. -vs- 191954 FEW060 SCT180 10 97 71 2417G25 G 32 069 i believe it's a conversion issue. c to f Link to comment Share on other sites More sharing options...
dendrite Posted July 19, 2013 Share Posted July 19, 2013 I wonder if the Texas A&M atmos. sciences ob source differs from NWS... They are reporting 72 dp at 3:54 and NWS has 71 for the same time: The weather observed at BOSTON, MA (KBOS) at 03:54 PM EDT was: The skies were partly cloudy. Temperature: 97F ( 36C) Dewpoint: 72F ( 22C) Relative Humidity: 44% Winds from the SW (240 degs) at 20 mph. Pressure: 1006.9 millibars. Altimeter:29.74 inches of mercury. The prevailing visibility was 10 miles. -vs- 191954 FEW060 SCT180 10 97 71 2417G25 G 32 069 It's 71F. Sometimes during the hour they get duplicate obs and not all have the remarks. So the T group is 21.7C in the ob which is 71F, but if they get a remarkless ob then they decode the rounded 21.7C which is 22C. Convert that to F and you get 71.6F or something which is 72F. If you want the precise readings then the best way is to just view the raw METARs and to decode the T group in your head yourself. Link to comment Share on other sites More sharing options...
ROOSTA Posted July 19, 2013 Share Posted July 19, 2013 I really hope that it snows before enduring another heat wave. If not hope that it doesn't have the same ferocity just endured. Amen Link to comment Share on other sites More sharing options...
joey2002 Posted July 19, 2013 Share Posted July 19, 2013 Whos the photographer he must be good Where did you take that pic? It's a classic... Link to comment Share on other sites More sharing options...
dendrite Posted July 19, 2013 Share Posted July 19, 2013 On second look, their decoder just takes the reading from the body of the METAR so some values will get skipped when converted to F. John, do you know METAR well? I know you're good with stuff like FOUS. Link to comment Share on other sites More sharing options...
HIPPYVALLEY Posted July 19, 2013 Share Posted July 19, 2013 92/72 Did an hour of yardwork and felt like I was starting to hallucinate. lol Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 It's 71F. Sometimes during the hour they get duplicate obs and not all have the remarks. So the T group is 21.7C in the ob which is 71F, but if they get a remarkless ob then they decode the rounded 21.7C which is 22C. Convert that to F and you get 71.6F or something which is 72F. If you want the precise readings then the best way is to just view the raw METARs and to decode the T group in your head yourself. Yeah makes sense ... Will's right it is a trivial matter, but I just wanted to get accustomed to any biases with the TAM product going forward. That's acceptable though - Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 On second look, their decoder just takes the reading from the body of the METAR so some values will get skipped when converted to F. John, do you know METAR well? I know you're good with stuff like FOUS. Yeah, we had to decode a lot of those as under-grads up there at UML. But, what I am not sure of is if there are new codes implemented or any retired ones over the last decade. Link to comment Share on other sites More sharing options...
dendrite Posted July 19, 2013 Share Posted July 19, 2013 12z ec ens rolling in cooler than 00z. Deeper trough over the NE past d10 and they slam the mean 12C 850 into SNE from d10-13. Link to comment Share on other sites More sharing options...
dendrite Posted July 19, 2013 Share Posted July 19, 2013 Yeah, we had to decode a lot of those as under-grads up there at UML. But, what I am not sure of is if there are new codes implemented or any retired ones over the last decade.I don't think much has changed other than PE to PL for sleet so that we don't get the RAPE obs.Just look in the RMK section for the T group. the first 4 digits are temp in tenths C and the last 4 are dewpoint in tenths C. The first digit of each group is a 1 or a 0 for the sign. 0 = positive and 1 = negative. So an ob of 99/71 would be coded as T03720217 which reads temp = 37.2C and dew = 21.7C. You probably already know this, but maybe it'll help someone else reading. Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 12z ec ens rolling in cooler than 00z. Deeper trough over the NE past d10 and they slam the mean 12C 850 into SNE from d10-13. Sorry - not to be a jerk but this at a glance could almost be droll humor. Link to comment Share on other sites More sharing options...
dendrite Posted July 19, 2013 Share Posted July 19, 2013 Sorry - not to be a jerk but this at a glance could almost be droll humor.It's been there multiple obs in a row now. I don't think anyone is calling for a stretch of below normal temps, but other guidance supports it too. The cool down will verify this weekend after being progged from about d10. Persistence can be dangerous at our latitude. Link to comment Share on other sites More sharing options...
CoastalWx Posted July 19, 2013 Share Posted July 19, 2013 Wow thought 100 was lock if they were 99 just after 1. Link to comment Share on other sites More sharing options...
joey2002 Posted July 19, 2013 Share Posted July 19, 2013 Ryan Maue @RyanMaue 1h How's the seabreeze working for you today in New England? 102°-108° heat index. pic.twitter.com/AY5vwfp5t1 Link to comment Share on other sites More sharing options...
powderfreak Posted July 19, 2013 Share Posted July 19, 2013 Man it's hot... MPV at 1200ft has a heat index of 95F with 89/71. I've got 90/71 at 800ft. Anyone else seeing pretty crazy southwest winds today? Most spots up here seeing 20-30mph. Massena (MSS) NY is currently 92/71 with a HI of 98F....and is SW 29G39. That's like a hairdryer with 40mph winds blowing 98 apparent temp in your face. Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 I don't think much has changed other than PE to PL for sleet so that we don't get the RAPE obs. Just look in the RMK section for the T group. the first 4 digits are temp in tenths C and the last 4 are dewpoint in tenths C. The first digit of each group is a 1 or a 0 for the sign. 0 = positive and 1 = negative. So an ob of 99/71 would be coded as T03720217 which reads temp = 37.2C and dew = 21.7C. You probably already know this, but maybe it'll help someone else reading. Oh yeah... I forgot about those. What a dope! I could have answered my own question. Yeah KBOS 191954Z 24017G25KT 10SM FEW060 SCT180 36/22 A2974 RMK AO2 PK WND 26032/1920 SLP069 T03610217= I read that as Boston, the 19th, at 19:54 hour (z time), wind 240 degrees at 17 gusting to 25 knots, ...less sure on "10 SM", but a few clouds at 6000 and 18000 respectively, 36C temp and 22C dp, Remarks: peak wind was 260 at 32kt sea-lvl pressure 1006.9 and the temperature are +36.10, and +21.7 C\ It's good enough to understand pretty fluently what is going on... Link to comment Share on other sites More sharing options...
powderfreak Posted July 19, 2013 Share Posted July 19, 2013 It's been there multiple obs in a row now. I don't think anyone is calling for a stretch of below normal temps, but other guidance supports it too. The cool down will verify this weekend after being progged from about d10. Persistence can be dangerous at our latitude. It's not a pattern change....but it might be. Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 Man it's hot... MPV at 1200ft has a heat index of 95F with 89/71. I've got 90/71 at 800ft. Anyone else seeing pretty crazy southwest winds today? Most spots up here seeing 20-30mph. Massena (MSS) NY is currently 92/71 with a HI of 98F....and is SW 29G39. That's like a hairdryer with 40mph winds blowing 98 apparent temp in your face. Lol, no schnikies! Link to comment Share on other sites More sharing options...
joey2002 Posted July 19, 2013 Share Posted July 19, 2013 That's like a hairdryer with 40mph winds blowing 98 apparent temp in your face. lol, yeah, it's been windy here too! Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 It's been there multiple obs in a row now. I don't think anyone is calling for a stretch of below normal temps, but other guidance supports it too. The cool down will verify this weekend after being progged from about d10. Persistence can be dangerous at our latitude. It has been there. Humor aside, I'm a little skeptical. As I was mentioning the other day, the trough into the NE routine has been overplayed but the Euro --- actually, the GGEM is the worst for this. I'm proceeding with question as more than couple times the those troughs haven't worked out too well. Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 Wow thought 100 was lock if they were 99 just after 1. This will probably be the last chance on this ob. Will and I did voice some doubts about these MOS products this morning, but even I was swung the other direction when I saw that. Yet, slam! typical.... Link to comment Share on other sites More sharing options...
nzucker Posted July 19, 2013 Share Posted July 19, 2013 Oh yeah... I forgot about those. What a dope! I could have answered my own question. Yeah KBOS 191954Z 24017G25KT 10SM FEW060 SCT180 36/22 A2974 RMK AO2 PK WND 26032/1920 SLP069 T03610217= I read that as Boston, the 19th, at 19:54 hour (z time), wind 240 degrees at 17 gusting to 25 knots, ...less sure on "10 SM", but a few clouds at 6000 and 18000 respectively, 36C temp and 22C dp, Remarks: peak wind was 260 at 32kt sea-lvl pressure 1006.9 and the temperature are +36.10, and +21.7 C\ It's good enough to understand pretty fluently what is going on... 10SM is visibility Link to comment Share on other sites More sharing options...
Typhoon Tip Posted July 19, 2013 Share Posted July 19, 2013 10SM is visibility Yeah I remembered that right after I posted... I haven't really looked at METARs in a while, but it's coming back to me. Link to comment Share on other sites More sharing options...
weathafella Posted July 19, 2013 Share Posted July 19, 2013 BOS winds now 240. Long shot but it could be late rally Link to comment Share on other sites More sharing options...
Tropopause_Fold Posted July 19, 2013 Share Posted July 19, 2013 here...just put this together...can see official dews: http://www.capecodweather.net/dewpoints-google-earth-2/ Link to comment Share on other sites More sharing options...
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