BTRWx Posted July 14, 2017 Share Posted July 14, 2017 1 minute ago, Eskimo Joe said: It was the only time we used air conditioning growing up in the row houses of Philadelphia. My parents hated air conditioning for some reason so to have them get a window unit left a distinct impression in my memory. On that thought, I wonder if it stormed that day?... Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 Just now, BTRWx said: On that thought, I wonder if it stormed that day?... It was several days put together and it did not storm in Philly much that summer...we had a drought I remember. Link to comment Share on other sites More sharing options...
yoda Posted July 14, 2017 Share Posted July 14, 2017 88/78 at 10:10am at DCA... HX 102. Winds S at 9mph Link to comment Share on other sites More sharing options...
BTRWx Posted July 14, 2017 Share Posted July 14, 2017 https://www.washingtonpost.com/blogs/capital-weather-gang/post/what-are-washington-dcs-records-for-heat-index-and-dew-point/2011/07/20/gIQAiyD8PI_blog.html Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 7 minutes ago, BTRWx said: Surprisingly, wunderground shows activity that week during lower dew points and not higher values. https://www.wunderground.com/history/airport/KDCA/1995/7/15/WeeklyHistory.html?req_city=Washington&req_state=VA&reqdb.zip=22202&reqdb.magic=10&reqdb.wmo=99999 The issue with extended heat, particularly nighttime lows, is in the inner cities. Low/fixed income folks don't have access to AC. This was also before emergency management really took off so the concept of working to extend library hours as a cooling center or open more pools was not in the wheelhouse of many city officials (Chicago, DC, Atlanta, Philly, Pittsburgh). This resulted in a large number of heat related deaths and visits to ERs. For awhile, Philly 911 was on a sveral minute wait because so many people were taxing the EMS system. It's one of the reason why the Kalkstein Method was developed (http://www.climateknowledge.org/heat_waves/Doc1002_Kalkstein_Philadelphia_Heat_Warning_BAMS_1996.pdf). Link to comment Share on other sites More sharing options...
yoda Posted July 14, 2017 Share Posted July 14, 2017 DP is 79 at DCA at 10:15 AM Link to comment Share on other sites More sharing options...
BTRWx Posted July 14, 2017 Share Posted July 14, 2017 11 minutes ago, yoda said: 88/78 at 10:10am at DCA... HX 102. Winds S at 9mph Cloud cover is minimal over mby. The next few hours will be interesting. 90/78 Link to comment Share on other sites More sharing options...
yoda Posted July 14, 2017 Share Posted July 14, 2017 Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 2 minutes ago, WxWatcher007 said: Which is why we can't BS with heat advisories. Heat related illnesses are real and can happen to anyone quickly. You don't need to be out in a 105 HI for three consecutive hours to get yourself killed.. Heat Warnings no doubt because you don't escape anything even late at night. Link to comment Share on other sites More sharing options...
BTRWx Posted July 14, 2017 Share Posted July 14, 2017 Good day to load WeatherScope! https://www.mesonet.org/index.php/weather/weatherscope Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 Just now, BTRWx said: Good day to load this! https://www.mesonet.org/index.php/weather/weatherscope I wish every state has a mesonet as great as OK Mesonet. Link to comment Share on other sites More sharing options...
BTRWx Posted July 14, 2017 Share Posted July 14, 2017 5 minutes ago, Eskimo Joe said: I wish every state has a mesonet as great as OK Mesonet. The contour options for any region are endless with weatherscope! Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 We seem to bust low on temps at the start of heat waves and somehow bust high on the final day of late. Wouldn't surprise me if at least DC/Arlington and Baltimore City warrant a heat advisory today. Link to comment Share on other sites More sharing options...
yoda Posted July 14, 2017 Share Posted July 14, 2017 3 minutes ago, Eskimo Joe said: We seem to bust low on temps at the start of heat waves and somehow bust high on the final day of late. Wouldn't surprise me if at least DC/Arlington and Baltimore City warrant a heat advisory today. Reading the 10:30AM LWX AFD update, they seem to be passing on it and sticking with LAMP The cloud cover/storm initiation balance will also impact the temperature forecast. Latest LAMP supports going forecast in the upper 80s to mid 90s, a little cooler than yesterday. This keeps heat indices in the 95-103 range, but slight differences in temperatures or dew points could nudge values into advisory territory. Overnight temperatures will be slow to cool, with 70s still likely for most locations east of the Blue Ridge. Link to comment Share on other sites More sharing options...
MN Transplant Posted July 14, 2017 Share Posted July 14, 2017 18 minutes ago, yoda said: DP is 79 at DCA at 10:15 AM Yoda - be careful with the 5 minute output. For some reason, there are rounding and conversion problems that sometimes bump the temp up or down by a degree. The 79s could really be 78. Look around the ob time - the 5 min outputs were all 79s, but the ob was 78. Link to comment Share on other sites More sharing options...
yoda Posted July 14, 2017 Share Posted July 14, 2017 90/78 HX 105 at DCA right now I believe... ugly ETA: 91/78 HX 108 just by peeking at the 5 min obs... and yes, I read what MN said - http://preview.weather.gov/edd/?lat=40.329452873812926&lon=-75.73059082031124&zoom=6&ql=FFFFFFTFFFFFFFFFFFFFFFFFF&ml=&bm=Google_Terrain&lsr=F&lfc=F&rt=obs&rf=major|moderate|minor|action&ht=F&pid=N0Q&sf=GOES_Infrared&ri=15&obs=TFTTFFFFFFTFFFFT&is=1&ou=mph&od=-50&ships=F&cluster=T&radO=0.75&satO=0.75&hazO=0.55&tropO=0.7&ndfdO=0.7&ndfdR=Continental_US&ndfdF=Maximum_Temperature_(ºF)&ndfdT=12&ndfdTS=&f100=F&lviz=F&fullscreen=F&fxt=Point_(Text_Only)&ppd=24&pdy=3&satf=60&obsync=F&owv=F&flavor=Advanced&tfo=&tfd=&tfw=null&ht=F&hd=F&ho=null&hf=null&hb=F&ot=Meteorological_Observation&hvt=F&sht=T&uwl=F Link to comment Share on other sites More sharing options...
mappy Posted July 14, 2017 Share Posted July 14, 2017 83/76 at home. picked up .74" of rain so far today. Link to comment Share on other sites More sharing options...
dailylurker Posted July 14, 2017 Share Posted July 14, 2017 Looks like some towers starting to build. Hopefully we see some convection increase in the area over the next few hours. Feels hotter then yesterday so far. Link to comment Share on other sites More sharing options...
BTRWx Posted July 14, 2017 Share Posted July 14, 2017 95/72 better luck next time jk Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 http://www.wpc.ncep.noaa.gov/metwatch/metwatch_mpd_multi.php?md=492&yr=2017 Link to comment Share on other sites More sharing options...
weatherCCB Posted July 14, 2017 Share Posted July 14, 2017 91/76. Heat index 104 Looking at other reporting stations I see 95/80 Heat index 113 Definitely advisory worthy in some areas Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 There's the heat advisory for the urban areas. https://inws.ncep.noaa.gov/a/a.php?i=14173423 Link to comment Share on other sites More sharing options...
BlizzardNole Posted July 14, 2017 Share Posted July 14, 2017 Man am I glad this front is coming as we have an outdoor wedding from noon to 5pm tomorrow. Today's weather would have been brutal. I would be ecstatic to get 0.5 of rain, but I'm not too hopeful for that. Jealous of the rain Ohio and PA have had the last few days. Link to comment Share on other sites More sharing options...
mappy Posted July 14, 2017 Share Posted July 14, 2017 Just now, losetoa6 said: 86/76 currently Hmm, ok. maybe my current 77 dewpoint isn't that far fetched after all. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 Just now, BlizzardNole said: Man am I glad this front is coming as we have an outdoor wedding from noon to 5pm tomorrow. Today's weather would have been brutal. I would be ecstatic to get 0.5 of rain, but I'm not too hopeful for that. Jealous of the rain Ohio and PA have had the last few days. The heat has been great for our squash and melons, particularly the nighttime lows to keep soil temps up. Link to comment Share on other sites More sharing options...
Eskimo Joe Posted July 14, 2017 Share Posted July 14, 2017 That Dover Td seems way too high...probably the reason for the errant spike in CAPE and supercell composite # for Delmarva Link to comment Share on other sites More sharing options...
yoda Posted July 14, 2017 Share Posted July 14, 2017 2 minutes ago, Eskimo Joe said: That Dover Td seems way too high...probably the reason for the errant spike in CAPE and supercell composite # for Delmarva Perhaps, but SPC in their 1630 OTLK mentioned poss of an isolated tor or two in that area due to the WF Link to comment Share on other sites More sharing options...
weatherCCB Posted July 14, 2017 Share Posted July 14, 2017 Looks like heat adv. extended back west a bit. 93/77 Link to comment Share on other sites More sharing options...
MN Transplant Posted July 14, 2017 Share Posted July 14, 2017 92/78 for a 108 at DCA. 93/78 at home. Link to comment Share on other sites More sharing options...
yoda Posted July 14, 2017 Share Posted July 14, 2017 4 minutes ago, weatherCCB said: Looks like heat adv. extended back west a bit. 93/77 URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1223 PM EDT Fri Jul 14 2017 MDZ013-014-016-504-506-VAZ052-053-055-056-142300- /O.EXA.KLWX.HT.Y.0003.000000T0000Z-170714T2300Z/ Prince Georges-Anne Arundel-Charles- Central and Southeast Montgomery-Central and Southeast Howard- Prince William/Manassas/Manassas Park-Fairfax-Stafford- Spotsylvania- Including the cities of Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, St. Charles, Waldorf, Bethesda, Rockville, Gaithersburg, Silver Spring, Columbia, Ellicott City, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Falmouth, and Fredericksburg 1223 PM EDT Fri Jul 14 2017 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING... The National Weather Service in Baltimore MD/Washington has issued a Heat Advisory, which is in effect until 7 PM EDT this evening. * HEAT INDEX VALUES...Around 105 this afternoon. Link to comment Share on other sites More sharing options...
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