Lacawac weather for: MONTH 2,2004 Platform Location (BD=beside dock; OD=on dock; LC=lake center): BD Rec field is % of data records collected (less than 100 indicates incomplete) Conversions: wind speed m/s X 2.24 = mph; rain mm/25.4=inches Note that unheated rain gage will delay reporting frozen precipitation until sun or Tair>0 melts it, underestimating total because of sublimation. 2, 4,9-10 Feb. reported precip was snow melting in gage when Tair > freezing. 3Feb. precip (water equivalent) from lake rise: 16mm 6-7Feb. freezing rain; lake rose about 13mm (10.5mm in gage) 24Feb: lake rose 2mm (water equivalent depth) & rain gage reported 2.1mm Sunny days since 9Feb: changes in lake level indicate daytime snow melt runoff MAX AVG MIN SUM AVG SUM SUM AVG MAX AVG AVG Day Rec Tair Tair Tair Precip RH PAR PYR WIND GUST T_0.1m T_3m #'s % (C) (C) (C) (mm) (%) (Mol/m2) (kJ/m2) (m/s) (m/s) (C) (C) 1 100 -2.6 -7.4 -11.8 0.0 73 23.3 12294 2.6 7.8 -0.0 3.5 2 100 4.6 -6.1 -15.2 3.9 79 22.0 10906 0.3 3.0 -0.1 3.5 3 100 -0.0 -2.8 -9.2 0.0 94 3.8 1531 1.2 7.8 -0.1 3.5 4 100 0.4 -1.3 -6.2 5.2 78 20.2 10412 2.7 9.6 -0.0 3.4 5 100 -3.8 -6.5 -10.7 0.0 73 14.1 6937 1.7 6.1 -0.0 3.5 6 100 1.2 -1.7 -4.9 4.3 93 3.7 1483 1.1 8.0 -0.0 3.5 7 100 1.5 -1.1 -7.3 6.2 86 6.5 2995 2.8 10.3 -0.0 3.4 8 100 -4.6 -8.4 -12.5 0.0 61 25.5 13523 3.2 9.7 0.0 3.3 9 100 5.1 -1.3 -8.8 3.6 54 20.1 10199 1.3 7.8 -0.0 3.4 10 100 4.5 1.6 -1.0 3.2 61 22.9 11920 1.6 7.5 -0.0 3.4 11 100 -0.5 -3.9 -10.1 0.0 64 17.0 8610 2.8 10.8 -0.0 3.3 12 100 3.4 -4.6 -12.8 0.0 70 19.8 9596 0.5 6.4 -0.1 3.4 13 100 1.9 -1.0 -2.6 0.0 66 24.5 12647 2.3 10.0 -0.0 3.3 14 100 -0.3 -2.8 -5.1 0.0 67 20.3 10410 1.9 8.1 -0.0 3.3 15 100 -4.3 -10.1 -17.3 0.0 53 28.5 15325 2.3 8.3 -0.0 3.3 16 100 -5.3 -13.3 -21.5 0.0 63 29.0 15438 0.8 6.0 -0.1 3.4 17 100 -1.6 -9.0 -17.0 0.0 67 20.7 10212 0.2 4.5 -0.1 3.4 18 100 0.8 -5.2 -13.1 0.0 67 28.7 15339 1.3 8.4 -0.1 3.4 19 100 2.4 -2.2 -8.9 0.0 75 13.4 6601 1.6 9.3 -0.1 3.4 20 100 4.1 -1.3 -7.2 0.0 80 16.1 7581 0.9 5.7 -0.1 3.4 21 100 5.9 1.0 -1.5 1.0 85 19.8 9927 2.3 9.7 -0.0 3.3 22 100 1.0 -1.3 -3.6 0.0 69 16.9 8369 3.8 10.8 0.0 3.3 23 100 3.3 -3.0 -8.7 0.0 69 29.1 14886 1.1 6.2 -0.1 3.4 24 100 -1.8 -3.6 -7.1 2.1 80 7.1 3443 0.6 5.8 -0.1 3.4 25 100 0.3 -5.6 -12.0 0.1 47 32.3 16557 2.4 9.5 -0.0 3.3 26 100 3.0 -4.6 -13.3 0.3 59 26.9 14245 1.1 6.1 -0.1 3.4 27 100 5.2 -1.9 -10.1 0.0 46 33.1 17327 1.6 7.7 -0.1 3.3 28 100 8.4 -0.4 -8.6 0.0 50 32.2 16679 1.4 6.8 -0.1 3.3 29 100 11.2 3.9 -5.4 0.0 49 29.8 15215 1.5 7.4 -0.1 3.3 MONTHLY SUMMARY: CUM CUM MAX AVG MIN SUM AVG SUM SUM AVG MAX AVG AVG Day Rec Tmax Tavg Tmin Precip RH PAR PYR WIND GUST T_0.1m T_3m #'s % (C) (C) (C) (mm) (%) (Mol/m2) (kJ/m2) (m/s) (m/s) (C) (C) 29 100 11.2 -3.6 -21.5 29.9 68 607 310607 1.7 10.8 -0.0 3.4