WinterWxLuvr Posted July 17, 2013 Share Posted July 17, 2013 So the DC normal is 89? Both yesterday and today put up a +7 for a high. The Jan normal is 43? So if DC records a couple of daytime highs of 36 will it be called the great January arctic outbreak? Seems kinda lame for a heat wave. Link to comment Share on other sites More sharing options...
EastCoast NPZ Posted July 17, 2013 Share Posted July 17, 2013 So the DC normal is 89? Both yesterday and today put up a +7 for a high. The Jan normal is 43? So if DC records a couple of daytime highs of 36 will it be called the great January arctic outbreak? Seems kinda lame for a heat wave. Of course it will. Have you not paid attention to the media over the years? Link to comment Share on other sites More sharing options...
EastCoast NPZ Posted July 17, 2013 Share Posted July 17, 2013 Well, the entire column from the surface to 500 has to be warm. It is kind of analogous to looking at the 540 thickness line in the late winter. We could have a relatively warm 800-500 layer meaning that thicknesses will end up higher, but the lower layer might be cold enough for snow. I'm guessing right now that temps at 500mb and 600mb are way above normal. Appreciate the explanation. Link to comment Share on other sites More sharing options...
MN Transplant Posted July 17, 2013 Share Posted July 17, 2013 So the DC normal is 89? Both yesterday and today put up a +7 for a high. The Jan normal is 43? So if DC records a couple of daytime highs of 36 will it be called the great January arctic outbreak? Seems kinda lame for a heat wave. I assumed the title of this thread was a little facetious. You can't compare Jan and July departures, though. There is a much higher standard deviation of temps in January. And these peak summers highs would be more akin to lows in the winter, so if we had a run of lows in the teens at DCA, yes the media would be all over it. Link to comment Share on other sites More sharing options...
WinterWxLuvr Posted July 17, 2013 Share Posted July 17, 2013 I assumed the title of this thread was a little facetious. You can't compare Jan and July departures, though. There is a much higher standard deviation of temps in January. And these peak summers highs would be more akin to lows in the winter, so if we had a run of lows in the teens at DCA, yes the media would be all over it. But would anyone HERE really consider that an arctic blast? I don't know DCA, but Winchester normal low is 22. I wouldn't consider 15 an arctic blast. I do understand what you're saying about the difference though. It's quite possible to get a -25 departure on a winter high but impossible to get a +25 high in July. Link to comment Share on other sites More sharing options...
WinterWxLuvr Posted July 17, 2013 Share Posted July 17, 2013 I assumed the title of this thread was a little facetious. You can't compare Jan and July departures, though. There is a much higher standard deviation of temps in January. And these peak summers highs would be more akin to lows in the winter, so if we had a run of lows in the teens at DCA, yes the media would be all over it. I also like to poke fun when heat comes up short. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 17, 2013 Share Posted July 17, 2013 /weenie Epic vodka cold winter coming. The NAO is denying the major heat...all the models are busting too warm!! /weenie Link to comment Share on other sites More sharing options...
mattie g Posted July 17, 2013 Share Posted July 17, 2013 So the DC normal is 89? Both yesterday and today put up a +7 for a high. The Jan normal is 43? So if DC records a couple of daytime highs of 36 will it be called the great January arctic outbreak? Seems kinda lame for a heat wave. No doubt we'll have plenty of +7s for highs this January. Link to comment Share on other sites More sharing options...
RodneyS Posted July 17, 2013 Share Posted July 17, 2013 I do understand what you're saying about the difference though. It's quite possible to get a -25 departure on a winter high but impossible to get a +25 high in July.To put some numbers on this difference, January 1950 in DC averaged 48.0 degrees, whereas January 1918 averaged 23.7 degrees -- a spread of 24.3 degrees between DC's warmest and coldest Januaries. On the other hand, the warmest July in DC was 2011 at 84.5 degrees versus the coldest DC July of 72.0 degrees in 1891 -- a spread of just 12.5 degrees. Link to comment Share on other sites More sharing options...
Ian Posted July 17, 2013 Author Share Posted July 17, 2013 The title was somewhat in jest but if we run 5 days 95+ it's as legit a heat wave as the worst in most summers. We are unfortunate to have to compare to the last few... The derechos of Julys. And more in the weeds a 4th yr in a row with a low of 80+ at DCA is unheard of in the records. Link to comment Share on other sites More sharing options...
yoda Posted July 17, 2013 Share Posted July 17, 2013 The title was somewhat in jest but if we run 5 days 95+ it's as legit a heat wave as the worst in most summers. We are unfortunate to have to compare to the last few... The derechos of Julys. And more in the weeds a 4th yr in a row with a low of 80+ at DCA is unheard of in the records. 83/74 at midnight.. have the feeling there will be a 79 for DCA's low tonight Link to comment Share on other sites More sharing options...
Hoosier Posted July 17, 2013 Share Posted July 17, 2013 Record heights http://wapo.st/1bkOshX the 600+ is over ORD Been following this as well. 4 RAOBs in the Lakes/OV came in with 600 dm at 00z. Astounding when you consider that prior to this event I've only been able to find 2 dates where it happened at one site in the region and both are questionable readings. Link to comment Share on other sites More sharing options...
mappy Posted July 17, 2013 Share Posted July 17, 2013 Too much talk of winter Link to comment Share on other sites More sharing options...
MN Transplant Posted July 17, 2013 Share Posted July 17, 2013 80 on the obs at DCA. Might have snuck into the 70s.78.0 for the low on my station. I'll confirm later, but that has to be one of my highest lows in the three summers of readings. edit - only one day last year and the "sweat ceiling" period in 2011 had higher lows on my VP2 Link to comment Share on other sites More sharing options...
snownut Posted July 17, 2013 Share Posted July 17, 2013 Yeah it is summer which I do not like, nothing unusual about this "heat" wave, it actually seems like typical summer time around here. Besides the humidity what really bothers me the most are the warm nights. If it could just get into the 50's most nights then windows open and early morning outdoors would be fine. Hit 96.2 yesterday, expecting 97+ today. Link to comment Share on other sites More sharing options...
EastCoast NPZ Posted July 17, 2013 Share Posted July 17, 2013 Yeah it is summer which I do not like, nothing unusual about this "heat" wave, it actually seems like typical summer time around here. Besides the humidity what really bothers me the most are the warm nights. If it could just get into the 50's most nights then windows open and early morning outdoors would be fine. Hit 96.2 yesterday, expecting 97+ today. It's been hotter around these parts before, but I'm not sure I recall the humidity ever being this bad for this long. I can't remember when the DP was last under 70F. Link to comment Share on other sites More sharing options...
clueless Posted July 17, 2013 Share Posted July 17, 2013 Just a few more days until this breaks. Epic? To me it is just another summer in DC. Link to comment Share on other sites More sharing options...
snownut Posted July 17, 2013 Share Posted July 17, 2013 It's been hotter around these parts before, but I'm not sure I recall the humidity ever being this bad for this long. I can't remember when the DP was last under 70F. Only time I want to be in DP's this warm is when I am on a Carribean/ tropical beach with an adult beverage surrounded by lovely ladies with little or no clothing... Then it is tolerable... I will be in lots of 40 DP's next week when we vacation and shop for a vacation property out west,... can't wait Link to comment Share on other sites More sharing options...
mattie g Posted July 17, 2013 Share Posted July 17, 2013 Only time I want to be in DP's this warm is when I am on a Carribean/ tropical beach with an adult beverage surrounded by lovely ladies with little or no clothing... Then it is tolerable... I will be in lots of 40 DP's next week when we vacation and shop for a vacation property out west,... can't wait See ya. Link to comment Share on other sites More sharing options...
H2O Posted July 17, 2013 Share Posted July 17, 2013 Death ridge death in 2 days. Will there be a zombie ridge next week? Link to comment Share on other sites More sharing options...
Ian Posted July 17, 2013 Author Share Posted July 17, 2013 Looks like another 80 for a low. Link to comment Share on other sites More sharing options...
WxUSAF Posted July 17, 2013 Share Posted July 17, 2013 Looks like another 80 for a low. #newnormal Link to comment Share on other sites More sharing options...
Ellinwood Posted July 17, 2013 Share Posted July 17, 2013 Hooray for tying the daily record low at DCA. Record lows for the next three nights are 80 (2012), 79 (2011 tie) and 81 (1980). Could tie/beat some of those. Link to comment Share on other sites More sharing options...
Subtropics Posted July 17, 2013 Share Posted July 17, 2013 Looks like another 80 for a low. Remarkable. Nothing like this in the record books. Link to comment Share on other sites More sharing options...
mattie g Posted July 17, 2013 Share Posted July 17, 2013 I'm tired of these high lows. I don't mind heat during the day, but this warm low stuff is horrible. Link to comment Share on other sites More sharing options...
Ian Posted July 17, 2013 Author Share Posted July 17, 2013 Hooray for tying the daily record low at DCA. Record lows for the next three nights are 80 (2012), 79 (2011 tie) and 81 (1980). Could tie/beat some of those.4 in a row is the longest on record too Link to comment Share on other sites More sharing options...
Ian Posted July 17, 2013 Author Share Posted July 17, 2013 89 at 10. 100 watch issued. Link to comment Share on other sites More sharing options...
Subtropics Posted July 17, 2013 Share Posted July 17, 2013 Today (and tomorrow, and the next day) is/are the day/s. Link to comment Share on other sites More sharing options...
Ian Posted July 17, 2013 Author Share Posted July 17, 2013 Clouds wandered in right after the last ob. We might have a piddly increase this hour. Link to comment Share on other sites More sharing options...
H2O Posted July 17, 2013 Share Posted July 17, 2013 Clouds wandered in right after the last ob. We might have a piddly increase this hour. Should rebound now. not a cloud out there Link to comment Share on other sites More sharing options...
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