yoda Posted March 3, 2014 Share Posted March 3, 2014 So when local TV Mets put out their snow maps for the public... Is it for actual snowfall or what is on the ground when the storm is finished? Most normal people do not care how much falls, but what is actually on the ground. The TV mets snow maps are what they think will be on the ground when the storm is done Link to comment Share on other sites More sharing options...
Ginger Wood Posted March 3, 2014 Share Posted March 3, 2014 If I wanted to try to measure my QPF ratios during my snowfall period, what would be a good way to go about that? Could I just set a big rubbermaid tub in my yard and measure the snow with a yardstick, and then measure the water left from the melted snow? I asked about this in the obs thread, but I feel like all my favorite people are here, except Ian.(he's in obs, I think). Link to comment Share on other sites More sharing options...
EastCoast NPZ Posted March 3, 2014 Share Posted March 3, 2014 If I wanted to try to measure my QPF ratios during my snowfall period, what would be a good way to go about that? Could I just set a big rubbermaid tub in my yard and measure the snow with a yardstick, and then measure the water left from the melted snow? I asked about this in the obs thread, but I feel like all my favorite people are here, except Ian.(he's in obs, I think). Your container has to have a consistent cross-section, as well as a flat bottom, else there will be error. Link to comment Share on other sites More sharing options...
foggy Posted March 3, 2014 Share Posted March 3, 2014 Link to comment Share on other sites More sharing options...
Ginger Wood Posted March 3, 2014 Share Posted March 3, 2014 Your container has to have a consistent cross-section, as well as a flat bottom, else there will be error. So... as long as it has straight sides and a flat bottom, it could be a way to estimate my ratios? Link to comment Share on other sites More sharing options...
ennepe68 Posted March 3, 2014 Share Posted March 3, 2014 If I wanted to try to measure my QPF ratios during my snowfall period, what would be a good way to go about that? Could I just set a big rubbermaid tub in my yard and measure the snow with a yardstick, and then measure the water left from the melted snow? I asked about this in the obs thread, but I feel like all my favorite people are here, except Ian.(he's in obs, I think). You have the general idea. A snowboard to measure the frozen stuff, cleared at appropriate intervals, and a precip gauge to capture snow which is melted and measured at the same intervals. Link to comment Share on other sites More sharing options...
EastCoast NPZ Posted March 3, 2014 Share Posted March 3, 2014 So... as long as it has straight sides and a flat bottom, it could be a way to estimate my ratios? Should be good enough for an estimation. Link to comment Share on other sites More sharing options...
nj2va Posted March 3, 2014 Share Posted March 3, 2014 4z RAP 3am snow sounding. Been consistent all day with this. Link to comment Share on other sites More sharing options...
Jebman Posted March 3, 2014 Share Posted March 3, 2014 Zwyts and Bob Chill firewx_00z_pcp24h_f24.gif purple finger is setting up right over my back yard ftw Link to comment Share on other sites More sharing options...
yoda Posted March 3, 2014 Share Posted March 3, 2014 Think the 03z HRRR is a bit too quick with the changeover to snow... forecasts 4" in DCA by 7am Link to comment Share on other sites More sharing options...
mitchnick Posted March 3, 2014 Share Posted March 3, 2014 JMA....just sayin' http://grib2.com/jma/CONUS_JMA_1000-500_SLPTHKPRP_24HR.gif Link to comment Share on other sites More sharing options...
yoda Posted March 3, 2014 Share Posted March 3, 2014 JMA....just sayin' http://grib2.com/jma/CONUS_JMA_1000-500_SLPTHKPRP_24HR.gif .4 QPF at DCA next 24 hrs makes zero sense Link to comment Share on other sites More sharing options...
MDsnowPRO Posted March 3, 2014 Share Posted March 3, 2014 JMA....just sayin' http://grib2.com/jma/CONUS_JMA_1000-500_SLPTHKPRP_24HR.gif Fail, epic fail Link to comment Share on other sites More sharing options...
WinterWxLuvr Posted March 3, 2014 Share Posted March 3, 2014 You have the general idea. A snowboard to measure the frozen stuff, cleared at appropriate intervals, and a precip gauge to capture snow which is melted and measured at the same intervals. I've never bought that stuff about appropriate intervals. If I measure 2" of snow, clear the board an hour later, measure an inch, clear it, measure an hour later, measure another inch, then it snowed 4". Period. I never clear anything, just making a point. My totals are probably low in bigger events. Link to comment Share on other sites More sharing options...
snowfan Posted March 3, 2014 Share Posted March 3, 2014 It's like the precip just hits a wall and dries up as it moves into our area. JMA....just sayin' http://grib2.com/jma/CONUS_JMA_1000-500_SLPTHKPRP_24HR.gif Link to comment Share on other sites More sharing options...
yoda Posted March 3, 2014 Share Posted March 3, 2014 04z RAP is intriguing... it continues to have the "mega-band" area in FFX to PG including DC like 03z had... but it upped it 2"... 03z RAP had DC ~11"... 04z RAP has DCA ~13" 03z HRRR is 8" or so at DCA Link to comment Share on other sites More sharing options...
yoda Posted March 3, 2014 Share Posted March 3, 2014 AREA FORECAST DISCUSSIONNATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC1215 AM EST MON MAR 3 2014.NEAR TERM /THROUGH TODAY/...A QUICK UPDATE - FOR THOSE W/ ACCESS TO DUAL POL DATA THE P-TYPECHG LN (IN KDP AND CC) IS QUITE CLR: PRSNTLY STRETCHING ACROSSCENTRAL FREDERICK/CARROLL CO TRACKING S. RCVD A MEDIA REPORT THATHGR IS NOW SNOWING. Link to comment Share on other sites More sharing options...
Random Chaos Posted March 3, 2014 Share Posted March 3, 2014 AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1215 AM EST MON MAR 3 2014 .NEAR TERM /THROUGH TODAY/... A QUICK UPDATE - FOR THOSE W/ ACCESS TO DUAL POL DATA THE P-TYPE CHG LN (IN KDP AND CC) IS QUITE CLR: PRSNTLY STRETCHING ACROSS CENTRAL FREDERICK/CARROLL CO TRACKING S. RCVD A MEDIA REPORT THAT HGR IS NOW SNOWING. You can really see the line on the correlation coefficient. Looks to be moving at 7-16 mph toward the south. Hard to tell for sure, but I took a couple of distance plots to make a guess with. Link to comment Share on other sites More sharing options...
Symblized Posted March 3, 2014 Share Posted March 3, 2014 You can really see the line on the correlation coefficient: Screen Shot 2014-03-03 at 12.49.15 AM.png For the interested: http://weather.cod.edu/satrad/nexrad/index.php?type=LWX-N0C-0-6 Link to comment Share on other sites More sharing options...
Ian Posted March 3, 2014 Share Posted March 3, 2014 euro a bit south with max but not much change and better north Link to comment Share on other sites More sharing options...
Disc Posted March 3, 2014 Share Posted March 3, 2014 SPC MD: http://www.spc.noaa.gov/products/md/md0166.html Link to comment Share on other sites More sharing options...
ers-wxman1 Posted March 3, 2014 Share Posted March 3, 2014 Painfully raining here in Ashburn at 1255 am! I absolutely hate wasted qpf! But it will turn sooner than later! Link to comment Share on other sites More sharing options...
Deck Pic Posted March 3, 2014 Share Posted March 3, 2014 euro is around 0.6" from now until the end for DC..would probably be a more modest 6" Link to comment Share on other sites More sharing options...
yoda Posted March 3, 2014 Share Posted March 3, 2014 euro a bit south with max but not much change and better north So.... 6-8 a good bet for most? Link to comment Share on other sites More sharing options...
snowfan Posted March 3, 2014 Share Posted March 3, 2014 Euro spits out 6-8 for DC metro with a 10-11 swath south of town. That's with the 10:1 wxbell maps. Link to comment Share on other sites More sharing options...
Deck Pic Posted March 3, 2014 Share Posted March 3, 2014 euro a bit south with max but not much change and better north I am not too concerned....I think 0.6" snow is a good bet for us....so maybe 7-8" Link to comment Share on other sites More sharing options...
DCAlexandria Posted March 3, 2014 Share Posted March 3, 2014 Euro not wirth looking at this ramgr Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
welbane Posted March 3, 2014 Share Posted March 3, 2014 I'm riding the DT train attm, ignoring the globals and hugging the rap/hrrr. Link to comment Share on other sites More sharing options...
mitchnick Posted March 3, 2014 Share Posted March 3, 2014 .55" from 1AM until the end at BWI (and some of that will be rain/sleet).....to think I almost forgot where I lived lol Link to comment Share on other sites More sharing options...
Ian Posted March 3, 2014 Share Posted March 3, 2014 I am not too concerned....I think 0.6" snow is a good bet for us....so maybe 7-8" yeah, seems about right .. not bad for a quick hitter that starts as rain. euro can be low in short term too. Link to comment Share on other sites More sharing options...
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