aldie 22 Posted January 17, 2011 Share Posted January 17, 2011 can it snow if 850 temps are .07 but all other levels are cold? 18z NAM verbatim is .41 qpf all freezing rain.....ok Link to comment Share on other sites More sharing options...
Herb@MAWS Posted January 17, 2011 Share Posted January 17, 2011 IMBY in Columbia: Low 26.3 High 29.2 Now/4:30pm 28.6 Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 18z NAM verbatim is .41 qpf all freezing rain.....ok Where did you get that from? Link to comment Share on other sites More sharing options...
Lisse Posted January 17, 2011 Share Posted January 17, 2011 I doubt it. If it was snow yes, most school systems take ice very seriously. Since we haven't had a snow day yet... I would not be surprised for the safety of the students if they were to just cancel. As I long time teacher - I often tell my students it depends on timing. Decisions are often made between 4:30 and 5:30 am. It will depend on what is going on at that point. If it is raining at that point - school will be on time. If it's freezing precip. there could be a delay or a cancel. Link to comment Share on other sites More sharing options...
Kmlwx Posted January 17, 2011 Share Posted January 17, 2011 As I long time teacher - I often tell my students it depends on timing. Decisions are often made between 4:30 and 5:30 am. It will depend on what is going on at that point. If it is raining at that point - school will be on time. If it's freezing precip. there could be a delay or a cancel. The second it turns to rain, however doesn't mean the end of slick roads. Slick spots will remain. Even if it has changed over at that point I'd say numerous delays are still likely. Probably not a cancellation, however. Link to comment Share on other sites More sharing options...
Kmlwx Posted January 17, 2011 Share Posted January 17, 2011 yeah and you should be too. Uncalled for... You probably will be going to school - delay only. With that said, if we get more ice than expected than it's still on the table. Link to comment Share on other sites More sharing options...
Ji Posted January 17, 2011 Share Posted January 17, 2011 weird how nam warms us up in the upper levels but has been cooling the surface all day Link to comment Share on other sites More sharing options...
TUweathermanDD Posted January 17, 2011 Share Posted January 17, 2011 18z GFS pretty cold and wintry. Link to comment Share on other sites More sharing options...
Ji Posted January 17, 2011 Share Posted January 17, 2011 18z NAM verbatim is .41 qpf all freezing rain.....ok Gfs and nam both keep us below 32. Ice storm warning for alpine drive Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 Gfs and nam both keep us below 32. Ice storm warning for alpine drive Where is that? Link to comment Share on other sites More sharing options...
Avdave Posted January 17, 2011 Share Posted January 17, 2011 18z NAM verbatim is .41 qpf all freezing rain.....ok JYO 9 01/18 03Z 27 25 76 6 0.03 0.00 538 556 1.2 -20.0 1022 100 PL 000OVC384 0.0 1.4 12 01/18 06Z 27 26 32 6 0.13 0.00 540 555 1.0 -20.1 1019 100 -FZRN 000OVC365 0.0 1.5 15 01/18 09Z 29 28 353 8 0.09 0.00 541 555 1.6 -20.1 1016 100 -FZRN 000OVC335 0.0 2.8 18 01/18 12Z 30 28 332 13 0.07 0.00 543 554 4.0 -19.4 1013 100 -FZRN 000OVC334 0.0 0.7 21 01/18 15Z 31 29 331 12 0.09 0.00 544 553 2.1 -19.8 1011 100 -FZRN 005OVC224 0.0 3.8 24 01/18 18Z 33 32 322 9 0.01 0.00 544 551 1.5 -20.1 1009 100 018OVC305 0.0 15.1 Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 18z GFS refuses to budge the 32 degree line from i-95 on hrs 12 and 18 Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 Much of this is ice just west of I-95... Link to comment Share on other sites More sharing options...
TUweathermanDD Posted January 17, 2011 Share Posted January 17, 2011 18z GFS refuses to budge the 32 degree line from i-95 on hrs 12 and 18 Lots of ice this run for Baltimore even, and of course west of there. Link to comment Share on other sites More sharing options...
Grothar of Herndon Posted January 17, 2011 Share Posted January 17, 2011 Cloudy Temp 30 DP 13 Winds E 5mph Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 Soundings for 18z GFS should be out in a lil while.. will be interesting to see what it does at DCA/BWI.... I sense ice storm is what it says for JYO/FDK/IAD Link to comment Share on other sites More sharing options...
Ellinwood Posted January 17, 2011 Share Posted January 17, 2011 CAD becoming sharper... temps are roughly the same, save for areas where precipitation has begun. Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 http://coolwx.com/cg...rent&field=prec 0.317 ice at KBWI per 18z NAM IAD probably loses power out there if this is right -- .50 of ice per 18z NAM (I know it says .570... look at the very last part of the image and a FZRN bar is there) http://coolwx.com/cg...rent&field=prec Link to comment Share on other sites More sharing options...
Hank Scorpio Posted January 17, 2011 Share Posted January 17, 2011 http://coolwx.com/cg...rent&field=prec 0.317 ice at KBWI per 18z NAM And .5ish of ice at IAD per 18z NAM. It'll be interesting to see how this plays out http://coolwx.com/cgi-bin/getbufr.cgi?region=&stn=KIAD&model=nam&time=current&field=prec Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 .214 ice at KDCA per 18z NAM http://coolwx.com/cgi-bin/getbufr.cgi?region=VA&stn=KDCA&model=nam&time=current&field=prec Link to comment Share on other sites More sharing options...
Ian Posted January 17, 2011 Author Share Posted January 17, 2011 the nam is probably too cold Link to comment Share on other sites More sharing options...
BaltimoreWxGuy Posted January 17, 2011 Share Posted January 17, 2011 LWX doughnut hole coming. http://www.intellica...px?animate=true Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 the nam is probably too cold GFS followed suit... it didn't move the 2m 32 degree line off I-95 from hrs 12-18... in fact it stayed there. So anyone west of there is ice Link to comment Share on other sites More sharing options...
BethesdaWX Posted January 17, 2011 Share Posted January 17, 2011 Wind is now NE...finally. Temp down to 30. Link to comment Share on other sites More sharing options...
Ian Posted January 17, 2011 Author Share Posted January 17, 2011 updated temps/dp with 32 temp contour (blue) and wetbulb (red) Link to comment Share on other sites More sharing options...
TUweathermanDD Posted January 17, 2011 Share Posted January 17, 2011 nam even looks to give Baltimore Inner Harbor .15'' zr or thereabouts, gfs more I can certainly assume. Link to comment Share on other sites More sharing options...
SlowerLowerDE Posted January 17, 2011 Share Posted January 17, 2011 Just started sleeting here in southern Delaware. Winds calm. Temp 32. Link to comment Share on other sites More sharing options...
yoda Posted January 17, 2011 Share Posted January 17, 2011 18z RUC has 0.207 ice at KBWI through 06z tomorrow. KDCA its 0.261 ice http://coolwx.com/cgi-bin/getbufr.cgi?region=VA&stn=KDCA&model=ruc&time=current&field=prec Link to comment Share on other sites More sharing options...
MN Transplant Posted January 17, 2011 Share Posted January 17, 2011 RUC getting in on it (below). HRRR is freezing rain 95 and west for the duration of the precip through at least 11z. No idea on the track record of these models with this type of situation. Link to comment Share on other sites More sharing options...
TUweathermanDD Posted January 17, 2011 Share Posted January 17, 2011 I'm getting bullish on ISW potential Baltimore west with this, and they'll have to issue it for me because so bal will get it good on W side. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.