Thursday 27th January John Cardwell 1412 - Left Boulder heading north to longmount aggregates of dendrites seen. 1418 Halfway to Longmount snow stopped sky bright in NNE 1430 getting brighter-Heading East to Platteville After Radar advise decide to Head SSW towards Denver Airport Bad roads speed limited to 20mph 1605 a few specks of snow set up at 120th & Cavanaugh Mile road position 39 54' 47" 104 32' 47" 1615 Large dishes put out for chemistry sample blackboard shows:- Stellar plate with dendritic extensions "fern" like crystal dendrites (mainly) Sector Plate Aggregates of stellars and dendrites 1620 Waiting for Cooler to get cold. Snow is now falling heavily came from the NW, wind extremely strong from the North. 1635 Give up waiting for cooler - take first snow sample Broad branch crystal @ 1 Plate @ 2 "fern" like crystal @ 3 & 4? 1640 next snow sample - snowing more lightly Broad Branched crystal @5 Fernlike branches @6 Broad branched aggregate @7 1645 3rd snow sample - snow falling heavily again Long Broad Branches - aggregates Some riming with plates & ferns on end @8,9&10 1650 4th snow sample Broad branch, long branches with plates on end & dendrites growing on plates @ 11 & 12? 1655 Chemistry sample taken in 1657 New Cups for Chem sample put out 1659 5th snow sample - wind even stronger from north broad branches with plate on top @13 Aggregate of broad branches slightly rimed @14 Broad Branch "don't Know" @15 1706 snow is lighter, still strong winds 1708 6th Snow sample Rimmed Broad branch @16 plate with long branches & ferns on end + another plate @17 plate in center over dendrite slightly rimmed @ 18 small plate with long branches, small plates on end @19 1715 7th Snow sample - snow heavy again Broad branch with wide plates on end @20 & 21 - see sketch Slightly rimmed sector @22 dendrite slightly rimmed @23 1719 bring in second chemistry sample 1724 8th snow sample dendritic aggregate @24 long big dendrite @25 & 26 lightly rimmed branches with plates on the end. Two of these seen@27 Branch with big plate in center @28 1730 snow almost stopped 3rd chemistry sample put out 1737 9th snow sample - Bright sky in west long thin branches @29 moderately rimmed broad branch @30&31 Big aggregate plate in center slightly rimmed @32&33? 1742 10th snow sample - just enough snow for another pristine plate with branches @34 1744 snow stopped 1745 get chem sample - winds calm, clear overhead, see glow of denver on the low cloud.