wxmeddler Posted July 21, 2013 Share Posted July 21, 2013 DCA can make it to 93 (95) if we hold off the clouds for another 2 (4) hours Link to comment Share on other sites More sharing options...
Ian Posted July 21, 2013 Author Share Posted July 21, 2013 Good call on m/u 80s today LWX! Link to comment Share on other sites More sharing options...
H2O Posted July 21, 2013 Share Posted July 21, 2013 Good call on m/u 80s today LWX! Now watch us get severe and no STWs issued Link to comment Share on other sites More sharing options...
wxmeddler Posted July 21, 2013 Share Posted July 21, 2013 Good call on m/u 80s today LWX! To be fair, every piece of guidance I looked at last night had m/u 80's. Only the RAP has hooked onto this l/m idea 90's today, and that only happened at 9z. Link to comment Share on other sites More sharing options...
yoda Posted July 21, 2013 Share Posted July 21, 2013 Now watch us get severe and no STWs issued That would be ironic compared to yesterday Link to comment Share on other sites More sharing options...
Kmlwx Posted July 21, 2013 Share Posted July 21, 2013 The cluster is maintaining pretty well coming over the mountains. Decent lightning with it as well. Link to comment Share on other sites More sharing options...
wxmeddler Posted July 21, 2013 Share Posted July 21, 2013 90 Link to comment Share on other sites More sharing options...
Ian Posted July 21, 2013 Author Share Posted July 21, 2013 To be fair, every piece of guidance I looked at last night had m/u 80's. Only the RAP has hooked onto this l/m idea 90's today, and that only happened at 9z. i didn't look y-day i guess. my friday forecast was u 80s to low 90s... then near 90 ahead. sometimes too much thought put into a late july cooldown. unless it's epic we're going to be "hot" probably. Link to comment Share on other sites More sharing options...
Kmlwx Posted July 21, 2013 Share Posted July 21, 2013 i didn't look y-day i guess. my friday forecast was u 80s to low 90s... then near 90 ahead. sometimes too much thought put into a late july cooldown. unless it's epic we're going to be "hot" probably. I'm very glad we are past peak heat. Starting on the 23rd average highs go back to 88. Doesn't count for much I guess but at least each day means another day that the heat gets a tiny bit more battered down by climo. Link to comment Share on other sites More sharing options...
yoda Posted July 21, 2013 Share Posted July 21, 2013 5% wind introduced per SPC... localized damaging wind due to precip loading and moderately large CAPE Link to comment Share on other sites More sharing options...
Ian Posted July 21, 2013 Author Share Posted July 21, 2013 I'm very glad we are past peak heat. Starting on the 23rd average highs go back to 88. Doesn't count for much I guess but at least each day means another day that the heat gets a tiny bit more battered down by climo. yeah .. certainly doubt we'll have another 5 day stretch like that at least. 97 for a max annual temp is still a bit low so hard to say we can't threaten that, but it doesn't seem we will for now... Link to comment Share on other sites More sharing options...
Ian Posted July 21, 2013 Author Share Posted July 21, 2013 5% wind introduced per SPC... localized damaging wind due to precip loading and moderately large CAPE nam4k death blob a bit early? half of the runs kept it south but looks like it would at least clip dc. Link to comment Share on other sites More sharing options...
yoda Posted July 21, 2013 Share Posted July 21, 2013 nam4k death blob a bit early? half of the runs kept it south but looks like it would at least clip dc. Well does look like it is strengthening some on the ridgelines of the WV/VA border on the LWX radar loop Link to comment Share on other sites More sharing options...
Kmlwx Posted July 21, 2013 Share Posted July 21, 2013 yeah .. certainly doubt we'll have another 5 day stretch like that at least. 97 for a max annual temp is still a bit low so hard to say we can't threaten that, but it doesn't seem we will for now... I personally cannot wait for the low dewpoints and highs in the low 70s. Link to comment Share on other sites More sharing options...
Kmlwx Posted July 21, 2013 Share Posted July 21, 2013 Well does look like it is strengthening some on the ridgelines of the WV/VA border on the LWX radar loop If they hold together you'll be in a good spot. I will not be. Link to comment Share on other sites More sharing options...
Ian Posted July 21, 2013 Author Share Posted July 21, 2013 If they hold together you'll be in a good spot. I will not be. might develop further north. hrrrrrrrr kinda splits dc then backbuilds over dc. Link to comment Share on other sites More sharing options...
snownut Posted July 21, 2013 Share Posted July 21, 2013 i didn't look y-day i guess. my friday forecast was u 80s to low 90s... then near 90 ahead. sometimes too much thought put into a late july cooldown. unless it's epic we're going to be "hot" probably. exactly, weather news tends to hype the heatwave and then hype the cool down. MA summers are either hot or less hot most of the time. very rarely dry DP wise, too much moisture this summer to see dramatic drop in DP's ? until sept oct?. Link to comment Share on other sites More sharing options...
The Dude Posted July 21, 2013 Share Posted July 21, 2013 as long as it doesn't rain a lot probably. the potomac is on fire: graph.png Any idea how this compares to the temp of the Potomac down by DCA? I would think Little Falls would be quite a bit warmer given that it's not tidal and is much narrower and shallower. Link to comment Share on other sites More sharing options...
Bob Chill Posted July 21, 2013 Share Posted July 21, 2013 I personally cannot wait for the low dewpoints and highs in the low 70s. I personally can't wait for d10 threats on the euro Link to comment Share on other sites More sharing options...
Ian Posted July 21, 2013 Author Share Posted July 21, 2013 Any idea how this compares to the temp of the Potomac down by DCA? I would think Little Falls would be quite a bit warmer given that it's not tidal and is much narrower and shallower.No clue.. Not even sure exactly where it is heh. Link to comment Share on other sites More sharing options...
eurojosh Posted July 21, 2013 Share Posted July 21, 2013 No clue.. Not even sure exactly where it is heh. Past the DC/MD line, mile or so upstream from chain bridge. Link to comment Share on other sites More sharing options...
Kmlwx Posted July 21, 2013 Share Posted July 21, 2013 exactly, weather news tends to hype the heatwave and then hype the cool down. MA summers are either hot or less hot most of the time. very rarely dry DP wise, too much moisture this summer to see dramatic drop in DP's ? until sept oct?. We do drought really well, though. All it takes is a decent period of dry with some dry airmasses and we'll be shriveled up and dry before you know it. Link to comment Share on other sites More sharing options...
Ian Posted July 21, 2013 Author Share Posted July 21, 2013 Past the DC/MD line, mile or so upstream from chain bridge. considering how long i've been here i have pretty limited knowledge of the area. my only thought would be that there is probably more flow thru that area? but if it is shallower it might run warm. Link to comment Share on other sites More sharing options...
snownut Posted July 21, 2013 Share Posted July 21, 2013 Any idea how this compares to the temp of the Potomac down by DCA? I would think Little Falls would be quite a bit warmer given that it's not tidal and is much narrower and shallower. maybe wikipedia can help answer? : Most lotic species are poikilotherms whose internal temperature varies with their environment, thus temperature is a key abiotic factor for them. Water can be heated or cooled through radiation at the surface and conduction to or from the air and surrounding substrate. Shallow streams are typically well mixed and maintain a relatively uniform temperature within an area. In deeper, slower moving water systems, however, a strong difference between the bottom and surface temperatures may develop. Spring fed systems have little variation as springs are typically from groundwater sources, which are often very close to ambient temperature.[4] Many systems show strong diurnal fluctuations and seasonal variations are most extreme in arctic, desert and temperate systems.[4] The amount of shading, climate and elevation can also influence the temperature of lotic systems.[3] Link to comment Share on other sites More sharing options...
mattie g Posted July 21, 2013 Share Posted July 21, 2013 considering how long i've been here i have pretty limited knowledge of the area. my only thought would be that there is probably more flow thru that area? but if it is shallower it might run warm. It's quite shallow. During drier years late in the summer and into September you can wade across the river above the tide line if you find the right path. Link to comment Share on other sites More sharing options...
snownut Posted July 21, 2013 Share Posted July 21, 2013 We do drought really well, though. All it takes is a decent period of dry with some dry airmasses and we'll be shriveled up and dry before you know it. yes, IMBY the clay soil is muddy after a storm (so much the dog tracks it in the house) then surface cracked open dry 36-48 hrs later. however even drought summers around here can still be very humid, certainly when compared to "true" dry climate zones Link to comment Share on other sites More sharing options...
yoda Posted July 21, 2013 Share Posted July 21, 2013 92/68 DCA high so far 93 Link to comment Share on other sites More sharing options...
snowfan Posted July 21, 2013 Share Posted July 21, 2013 Those storms aren't moving very fast and are dumping. Link to comment Share on other sites More sharing options...
ravensrule Posted July 21, 2013 Share Posted July 21, 2013 I personally can't wait for d10 threats on the euro Link to comment Share on other sites More sharing options...
H2O Posted July 22, 2013 Share Posted July 22, 2013 Heat wave officially over? DCA down to 76 this AM Link to comment Share on other sites More sharing options...
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