usedtobe Posted January 23, 2013 Share Posted January 23, 2013 The 20Z RAP is interesting and would say the heaviest rates would be in the 2-5 AM time as the model has pretty good uvv (over me). Link to comment Share on other sites More sharing options...
mitchnick Posted January 23, 2013 Share Posted January 23, 2013 The 20Z RAP is interesting and would say the heaviest rates would be in the 2-5 AM time as the model has pretty good uvv (over me). it's coming north of you Wes so give it up Link to comment Share on other sites More sharing options...
nw baltimore wx Posted January 23, 2013 Share Posted January 23, 2013 WTH? Actually no they dont. There might be an inch in some spots, but most places that are in the advisory are forecasted to get a a half inch or less! Read Mount Holly AFD for comparison. Same accums predicted in eastern MD and DE... up to an inch, No advisory. The criteria is 2 inches. I'm not sure that they still do it, but I'm pretty sure LWX had (has?) rush hour criteria. It would also explain why the WWA is in the counties of and adjacent to interstate 95. Link to comment Share on other sites More sharing options...
mitchnick Posted January 23, 2013 Share Posted January 23, 2013 note that pivot come to papa! http://radar.weather.gov/Conus/centgrtlakes_loop.php Link to comment Share on other sites More sharing options...
snowfan Posted January 23, 2013 Share Posted January 23, 2013 note that pivot come to papa! http://radar.weather.gov/Conus/centgrtlakes_loop.php Link to comment Share on other sites More sharing options...
usedtobe Posted January 23, 2013 Share Posted January 23, 2013 I'm not sure that they still do it, but I'm pretty sure LWX had (has?) rush hour criteria. It would also explain why the WWA is in the counties of and adjacent to interstate 95. Even if they don't with it probably lasting into early rush hour it's a good advisory in my view. Link to comment Share on other sites More sharing options...
gymengineer Posted January 23, 2013 Share Posted January 23, 2013 Even if they don't with it probably lasting into early rush hour it's a good advisory in my view. It's right on their wesbite: Winter Weather Advisory A Winter Weather Advisory will be issued when 2 to 4 inches of snow, alone or in combination with sleet and freezing rain, is expected to cause a significant inconvenience, but not serious enough to warrant a warning. If the event is expected to impact the Baltimore/Washington metro areas during rush hours (4-9 am or 2-7 pm on weekdays) forecasted snow totals of one inch will necessitate the issuance of a winter weather advisory. The snow/sleet criteria for a Winter Weather Advisory for the five westernmost counties (Allegany, Mineral, Grant, Pendleton, and Highland) is higher (3-5 inches). Link to comment Share on other sites More sharing options...
nw baltimore wx Posted January 23, 2013 Share Posted January 23, 2013 Gym beat me to it, but they changed that a few years ago. I remember the discussion of it at AmWx. Link to comment Share on other sites More sharing options...
usedtobe Posted January 23, 2013 Share Posted January 23, 2013 It's right on their wesbite: Winter Weather Advisory A Winter Weather Advisory will be issued when 2 to 4 inches of snow, alone or in combination with sleet and freezing rain, is expected to cause a significant inconvenience, but not serious enough to warrant a warning. If the event is expected to impact the Baltimore/Washington metro areas during rush hours (4-9 am or 2-7 pm on weekdays) forecasted snow totals of one inch will necessitate the issuance of a winter weather advisory. The snow/sleet criteria for a Winter Weather Advisory for the five westernmost counties (Allegany, Mineral, Grant, Pendleton, and Highland) is higher (3-5 inches). Good find! Link to comment Share on other sites More sharing options...
CAPE Posted January 23, 2013 Share Posted January 23, 2013 I'm not sure that they still do it, but I'm pretty sure LWX had (has?) rush hour criteria. It would also explain why the WWA is in the counties of and adjacent to interstate 95. Interesting to see how neighboring offices view things differently. Mount Holly is very matter of fact in their AFD about not posting any advisories due to very low potential to reach the 2 inch criteria. And I dont think anyone is going to think they weren't properly warned if there is a coating of snow on the ground for drive time in the morning. Link to comment Share on other sites More sharing options...
Bob Chill Posted January 23, 2013 Share Posted January 23, 2013 Interesting to see how neighboring offices view things differently. Mount Holly is very matter of fact in their AFD about not posting any advisories due to very low potential to reach the 2 inch criteria. And I dont think anyone is going to think they weren't properly warned if there is a coating of snow on the ground for drive time in the morning. That's the tricky part. If roads are gridlocked and riddled with accidents then everyone will hold mt holly accountable for not issuing anything. Doesn't matter how much snow falls. Perception is reality. If weather causes a commuting disaster then # of inches mean squat in the average persons mind. Link to comment Share on other sites More sharing options...
wxmeddler Posted January 23, 2013 Share Posted January 23, 2013 Not to mention that everyone will have forgotten how to drive on one inch of snow. If not plowed cleanly, heat from the engines and friction in the tires on roads will have the required 80cal/gram to cause melting, and thus re-freezing. Link to comment Share on other sites More sharing options...
gymengineer Posted January 23, 2013 Share Posted January 23, 2013 Interesting to see how neighboring offices view things differently. Mount Holly is very matter of fact in their AFD about not posting any advisories due to very low potential to reach the 2 inch criteria. And I dont think anyone is going to think they weren't properly warned if there is a coating of snow on the ground for drive time in the morning. In the meantime, it still doesn't make sense that PHL has a lower threshold for a WSWarning than DC. Link to comment Share on other sites More sharing options...
wxdude64 Posted January 23, 2013 Share Posted January 23, 2013 Very light snow starting to fall here. mostly just drifting around with the wind. Can confirm that at my location too, a few flakes drifting in the wind in last 5-10 minutes. DP has rose from -8.2 to +4.0 in last hour. 25.6 degrees. Link to comment Share on other sites More sharing options...
H2O Posted January 23, 2013 Share Posted January 23, 2013 Oh big deal. Powdery snow can cause issues in this area so let them put out a WWA. Link to comment Share on other sites More sharing options...
usedtobe Posted January 23, 2013 Share Posted January 23, 2013 That's the tricky part. If roads are gridlocked and riddled with accidents then everyone will hold mt holly accountable for not issuing anything. Doesn't matter how much snow falls. Perception is reality. If weather causes a commuting disaster then # of inches mean squat in the average persons mind. Exactly, I'd sure put out an advisory. Link to comment Share on other sites More sharing options...
nw baltimore wx Posted January 23, 2013 Share Posted January 23, 2013 Oh big deal. Powdery snow can cause issues in this area so let them out out a WWA. The more hysteria, the better the chance that I start work late tomorrow! Link to comment Share on other sites More sharing options...
CAPE Posted January 23, 2013 Share Posted January 23, 2013 In the meantime, it still doesn't make sense that PHL has a lower threshold for a WSWarning than DC. Its 4 inches for Philly and SE I believe? And wasn't the criteria raised to 5 for the DC area? Link to comment Share on other sites More sharing options...
CAPE Posted January 23, 2013 Share Posted January 23, 2013 Exactly, I'd sure put out an advisory. LOL I guess I am just old school. Maybe this is why people here freak out over a coating of snow and other places its barely noticed. Business as usual. Link to comment Share on other sites More sharing options...
North Balti Zen Posted January 23, 2013 Share Posted January 23, 2013 LOL I guess I am just old school. Maybe this is why people here freak out over a coating of snow and other places its barely noticed. Business as usual. Again, 100 car pileup in northern Ohio a few days ago, in a similar squall type situation. And they do get snow more than we do. This kind of view always strikes me as full of needless bravado. What does an advisory harm? If it causes people to slow down a bit and fewer accidents, good. And if it ends up not being needed, who's hurt by its issuance? Link to comment Share on other sites More sharing options...
Kmlwx Posted January 23, 2013 Share Posted January 23, 2013 Again, 100 car pileup in northern Ohio a few days ago, in a similar squall type situation. And they do get snow more than we do. This kind of view always strikes me as full of needless bravado. What does an advisory harm? If it causes people to slow down a bit and fewer accidents, good. And if it ends up not being needed, who's hurt by its issuance? The point of issuing advisories is not to look tough...it's to warn the public. So I agree with you - issue the advisory! Link to comment Share on other sites More sharing options...
ThePhotoGuy Posted January 23, 2013 Share Posted January 23, 2013 As pathetic as its been, this alone is a welcome sight... forecast.jpg By seeing that forecast, you would think we lived in a snowy location. Link to comment Share on other sites More sharing options...
wxdude64 Posted January 23, 2013 Share Posted January 23, 2013 Can confirm that at my location too, a few flakes drifting in the wind in last 5-10 minutes. DP has rose from -8.2 to +4.0 in last hour. 25.6 degrees. Well, so much for that. Nothing now. Link to comment Share on other sites More sharing options...
CAPE Posted January 23, 2013 Share Posted January 23, 2013 Again, 100 car pileup in northern Ohio a few days ago, in a similar squall type situation. And they do get snow more than we do. This kind of view always strikes me as full of needless bravado. What does an advisory harm? If it causes people to slow down a bit and fewer accidents, good. And if it ends up not being needed, who's hurt by its issuance? No advisory should be necessary for that. Common sense says to drive cautiously in poor weather, including rain and fog. But point taken. Link to comment Share on other sites More sharing options...
Bob Chill Posted January 23, 2013 Share Posted January 23, 2013 No advisory should be necessary for that. Common sense says to drive cautiously in poor weather, including rain and fog. But point taken. Common sense driving in dc-balt corridor? You must live on the eastern shore or something....just kiddin around, I know where greensboro is. eastern shore livin is peaceful. Link to comment Share on other sites More sharing options...
CAPE Posted January 23, 2013 Share Posted January 23, 2013 Common sense driving in dc-balt corridor? You must live on the eastern shore or something....just kiddin around, I know where greensboro is. eastern shore livin is peaceful. Haha yeah! I lived in Baltimore and Westminster. And I drive over there alot so I do know what its like Link to comment Share on other sites More sharing options...
H2O Posted January 23, 2013 Share Posted January 23, 2013 Haha yeah! I lived in Baltimore and Westminster. And I drive over there alot so I do know what its like The DMV is filled with dipsticks who have never driven or very little experience driving in snow. If a WWA can get a few people to slow down then it might help. Link to comment Share on other sites More sharing options...
yoda Posted January 23, 2013 Share Posted January 23, 2013 21z RAP has decent h7 over us at 9pm tonight and is pretty much gone by 6 am Link to comment Share on other sites More sharing options...
yoda Posted January 23, 2013 Share Posted January 23, 2013 Calvert/Charles/St Marys/King George in VA got bumped up to 1-3 in latest WWA... DC region remains same Link to comment Share on other sites More sharing options...
ravensrule Posted January 23, 2013 Share Posted January 23, 2013 Calvert/Charles/St Marys/King George in VA got bumped up to 1-3 in latest WWA... DC region remains same The met in the nipple of Calvert County must be getting excited. Link to comment Share on other sites More sharing options...
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