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January 22-23 Mid Atlantic Storm Thread #3 - No Banter


stormtracker

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So, out of curiosity, did I miss something earlier this evening? Several of the weather sites online that were previously forecasting 8-12" for Richmond with the snow lasting through most of Saturday, have now backed off quite a bit, and are only calling for 5-8", most of which according to them, comes on Friday, only followed by snow showers or flurries on Saturday? Was there a bad run that freaked the forecasters out or something? I mean, they usually play it safe, so I'd see it as more likely to forecast less snow here than more.

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18Z GFS Cobb data:

 

DCA:

160122/2100Z 51 07009KT 29.7F SNOW 9:1| 0.1|| 0.00|| 0.00|| 0.016 9:1| 0.1|| 0.00|| 0.00|| 0.02 100| 0| 0
160123/0000Z 54 06015KT 27.2F SNOW 14:1| 2.6|| 0.00|| 0.00|| 0.187 13:1| 2.7|| 0.00|| 0.00|| 0.20 100| 0| 0
160123/0300Z 57 04019KT 27.0F SNOW 15:1| 5.1|| 0.00|| 0.00|| 0.341 14:1| 7.8|| 0.00|| 0.00|| 0.54 100| 0| 0
160123/0600Z 60 04023KT 27.8F SNOW 14:1| 6.8|| 0.00|| 0.00|| 0.487 14:1| 14.6|| 0.00|| 0.00|| 1.03 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160123/0900Z 63 04023KT 29.4F SNOW 7:1| 1.0|| 0.00|| 0.00|| 0.139 13:1| 15.6|| 0.00|| 0.00|| 1.17 100| 0| 0
160123/1200Z 66 02020KT 28.1F SNOW 5:1| 2.5|| 0.00|| 0.00|| 0.461 11:1| 18.1|| 0.00|| 0.00|| 1.63 100| 0| 0
160123/1500Z 69 01023KT 27.2F SNOW 6:1| 2.0|| 0.00|| 0.00|| 0.318 10:1| 20.1|| 0.00|| 0.00|| 1.95 100| 0| 0
160123/1800Z 72 01024KT 28.8F SNOW 12:1| 1.8|| 0.00|| 0.00|| 0.155 10:1| 21.9|| 0.00|| 0.00|| 2.10 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160123/2100Z 75 36023KT 29.0F SNOW 10:1| 0.7|| 0.00|| 0.00|| 0.072 10:1| 22.6|| 0.00|| 0.00|| 2.18 100| 0| 0
160124/0000Z 78 35021KT 28.5F SNOW 13:1| 0.9|| 0.00|| 0.00|| 0.070 10:1| 23.6|| 0.00|| 0.00|| 2.25 100| 0| 0
160124/0300Z 81 34021KT 26.9F SNOW 22:1| 3.3|| 0.00|| 0.00|| 0.154 11:1| 26.9|| 0.00|| 0.00|| 2.40 100| 0| 0
160124/0600Z 84 34020KT 25.4F SNOW 10:1| 1.8|| 0.00|| 0.00|| 0.176 11:1| 28.7|| 0.00|| 0.00|| 2.58 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160124/0900Z 87 35016KT 25.2F SNOW 6:1| 0.3|| 0.00|| 0.00|| 0.050 11:1| 28.9|| 0.00|| 0.00|| 2.63 100| 0| 0

 

IAD:

160122/2100Z 51 08005KT 27.4F SNOW 8:1| 0.3|| 0.00|| 0.00|| 0.033 8:1| 0.3|| 0.00|| 0.00|| 0.03 100| 0| 0
160123/0000Z 54 06008KT 25.4F SNOW 13:1| 2.8|| 0.00|| 0.00|| 0.213 13:1| 3.1|| 0.00|| 0.00|| 0.25 100| 0| 0
160123/0300Z 57 05010KT 25.1F SNOW 13:1| 3.7|| 0.00|| 0.00|| 0.288 13:1| 6.8|| 0.00|| 0.00|| 0.53 100| 0| 0
160123/0600Z 60 04013KT 25.1F SNOW 12:1| 3.5|| 0.00|| 0.00|| 0.299 12:1| 10.3|| 0.00|| 0.00|| 0.83 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160123/0900Z 63 02012KT 25.6F SNOW 11:1| 2.8|| 0.00|| 0.00|| 0.263 12:1| 13.1|| 0.00|| 0.00|| 1.10 100| 0| 0
160123/1200Z 66 01011KT 25.4F SNOW 11:1| 4.0|| 0.00|| 0.00|| 0.350 12:1| 17.1|| 0.00|| 0.00|| 1.45 100| 0| 0
160123/1500Z 69 36013KT 26.1F SNOW 12:1| 3.4|| 0.00|| 0.00|| 0.295 12:1| 20.5|| 0.00|| 0.00|| 1.74 100| 0| 0
160123/1800Z 72 36014KT 27.4F SNOW 10:1| 2.3|| 0.00|| 0.00|| 0.223 12:1| 22.8|| 0.00|| 0.00|| 1.97 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160123/2100Z 75 35014KT 27.4F SNOW 10:1| 0.8|| 0.00|| 0.00|| 0.083 12:1| 23.6|| 0.00|| 0.00|| 2.05 100| 0| 0
160124/0000Z 78 34013KT 27.2F SNOW 15:1| 1.4|| 0.00|| 0.00|| 0.091 12:1| 25.0|| 0.00|| 0.00|| 2.14 100| 0| 0
160124/0300Z 81 34012KT 26.3F SNOW 17:1| 3.0|| 0.00|| 0.00|| 0.181 12:1| 27.9|| 0.00|| 0.00|| 2.32 100| 0| 0
160124/0600Z 84 34012KT 24.7F SNOW 7:1| 0.9|| 0.00|| 0.00|| 0.121 12:1| 28.8|| 0.00|| 0.00|| 2.44 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160124/0900Z 87 33010KT 22.7F SNOW 10:1| 0.1|| 0.00|| 0.00|| 0.012 12:1| 28.9|| 0.00|| 0.00|| 2.45 100| 0| 0

 

MRB:

160123/0000Z 54 06006KT 24.9F SNOW 14:1| 1.2|| 0.00|| 0.00|| 0.089 14:1| 1.2|| 0.00|| 0.00|| 0.09 100| 0| 0
160123/0300Z 57 05007KT 24.9F SNOW 12:1| 2.0|| 0.00|| 0.00|| 0.163 13:1| 3.2|| 0.00|| 0.00|| 0.25 100| 0| 0
160123/0600Z 60 05009KT 24.3F SNOW 10:1| 1.5|| 0.00|| 0.00|| 0.146 12:1| 4.7|| 0.00|| 0.00|| 0.40 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160123/0900Z 63 03009KT 24.7F SNOW 12:1| 1.5|| 0.00|| 0.00|| 0.132 12:1| 6.3|| 0.00|| 0.00|| 0.53 100| 0| 0
160123/1200Z 66 01009KT 25.2F SNOW 20:1| 5.3|| 0.00|| 0.00|| 0.268 14:1| 11.5|| 0.00|| 0.00|| 0.80 100| 0| 0
160123/1500Z 69 36011KT 25.4F SNOW 20:1| 7.8|| 0.00|| 0.00|| 0.393 16:1| 19.3|| 0.00|| 0.00|| 1.19 100| 0| 0
160123/1800Z 72 35011KT 25.6F SNOW 18:1| 4.3|| 0.00|| 0.00|| 0.239 17:1| 23.6|| 0.00|| 0.00|| 1.43 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160123/2100Z 75 34010KT 26.3F SNOW 21:1| 3.8|| 0.00|| 0.00|| 0.185 17:1| 27.5|| 0.00|| 0.00|| 1.61 100| 0| 0
160124/0000Z 78 34010KT 26.5F SNOW 19:1| 3.0|| 0.00|| 0.00|| 0.161 17:1| 30.5|| 0.00|| 0.00|| 1.78 100| 0| 0
160124/0300Z 81 32007KT 25.8F SNOW 18:1| 2.0|| 0.00|| 0.00|| 0.109 17:1| 32.4|| 0.00|| 0.00|| 1.88 100| 0| 0

 

BWI:

160123/0000Z 54 06016KT 28.5F SNOW 13:1| 0.9|| 0.00|| 0.00|| 0.064 13:1| 0.9|| 0.00|| 0.00|| 0.06 100| 0| 0
160123/0300Z 57 05022KT 27.6F SNOW 14:1| 3.5|| 0.00|| 0.00|| 0.252 14:1| 4.4|| 0.00|| 0.00|| 0.32 100| 0| 0
160123/0600Z 60 04025KT 28.3F SNOW 13:1| 5.6|| 0.00|| 0.00|| 0.425 13:1| 10.0|| 0.00|| 0.00|| 0.74 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160123/0900Z 63 05037KT 29.7F SNPL 3:1| 0.5|| 0.08|| 0.00|| 0.160 12:1| 10.5|| 0.08|| 0.00|| 0.90 76| 24| 0
160123/1200Z 66 04028KT 29.0F SNOW 7:1| 0.9|| 0.00|| 0.00|| 0.134 11:1| 11.4|| 0.08|| 0.00|| 1.04 100| 0| 0
160123/1500Z 69 03030KT 29.0F SNOW 6:1| 1.9|| 0.00|| 0.00|| 0.302 10:1| 13.3|| 0.08|| 0.00|| 1.34 100| 0| 0
160123/1800Z 72 02024KT 30.1F SNOW 8:1| 1.6|| 0.00|| 0.00|| 0.207 10:1| 14.9|| 0.08|| 0.00|| 1.54 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160123/2100Z 75 36027KT 30.3F SNOW 9:1| 1.2|| 0.00|| 0.00|| 0.123 10:1| 16.1|| 0.08|| 0.00|| 1.67 100| 0| 0
160124/0000Z 78 35026KT 29.7F SNOW 14:1| 2.1|| 0.00|| 0.00|| 0.151 10:1| 18.2|| 0.08|| 0.00|| 1.82 100| 0| 0
160124/0300Z 81 35029KT 27.8F SNOW 21:1| 4.5|| 0.00|| 0.00|| 0.216 11:1| 22.6|| 0.08|| 0.00|| 2.03 100| 0| 0
160124/0600Z 84 35028KT 26.9F SNOW 16:1| 4.6|| 0.00|| 0.00|| 0.290 12:1| 27.2|| 0.08|| 0.00|| 2.32 100| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160124/0900Z 87 35025KT 27.0F SNOW 6:1| 0.5|| 0.00|| 0.00|| 0.074 12:1| 27.7|| 0.08|| 0.00|| 2.40 100| 0| 0

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