Name: NH Vortex Area Units: million km!U2!N Level: 500 K Source: MERRA (Data starting 20120131 are from GEOS5FP) Missing: -9999.0 Climatology: 1978/1979-2010/2011 5-day boxcar smoother applied to all data. Date Data Minimum 10% 30% Mean 70% 90% Maximum 2011-10-01 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-02 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-03 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-04 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-05 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-06 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-07 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-08 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-09 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-10 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-11 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-12 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-13 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-14 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-15 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-16 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-17 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-18 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-19 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-20 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-21 9.44 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-22 9.44 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-23 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-24 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-25 9.65 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2011-10-26 9.64 16.94 16.97 17.04 17.11 17.17 17.24 17.28 2011-10-27 9.68 16.45 16.56 16.78 17.00 17.22 17.44 17.55 2011-10-28 9.78 16.12 16.30 16.66 17.02 17.38 17.75 17.93 2011-10-29 9.84 14.64 14.83 15.20 15.57 16.53 17.48 17.96 2011-10-30 9.87 14.64 14.79 15.07 15.36 16.43 17.49 18.03 2011-10-31 9.84 9.90 11.49 14.68 16.55 18.74 23.83 26.37 2011-11-01 9.84 10.31 11.87 15.01 16.47 17.49 17.98 18.22 2011-11-02 9.67 8.17 11.59 15.83 16.71 17.33 18.44 19.00 2011-11-03 -9999.0 11.67 12.28 15.52 17.25 21.36 24.88 28.28 2011-11-04 9.24 11.62 13.05 16.03 17.00 20.01 21.72 22.52 2011-11-05 9.16 11.68 12.88 14.49 16.24 19.95 24.70 28.66 2011-11-06 9.16 7.73 11.83 12.98 14.19 18.11 23.34 28.44 2011-11-07 -9999.0 11.81 13.35 14.49 18.32 20.64 24.13 28.44 2011-11-08 -9999.0 12.05 12.63 14.01 18.37 20.01 23.18 27.84 2011-11-09 14.15 12.33 13.19 15.34 18.99 19.95 21.58 24.62 2011-11-10 -9999.0 11.34 12.24 15.43 18.09 19.60 24.18 26.02 2011-11-11 15.52 11.96 12.55 15.77 18.27 20.97 25.84 27.78 2011-11-12 14.02 12.10 12.89 16.01 18.81 21.33 25.79 27.36 2011-11-13 -9999.0 4.26 12.48 15.39 17.54 19.32 26.18 27.02 2011-11-14 -9999.0 4.50 12.57 15.48 17.37 19.67 23.87 26.59 2011-11-15 -9999.0 12.03 12.57 15.32 16.91 21.48 25.98 28.33 2011-11-16 9.90 5.10 12.65 15.28 16.68 19.73 25.01 27.10 2011-11-17 9.84 5.66 12.52 15.20 17.49 20.79 25.11 26.92 2011-11-18 9.95 6.17 12.02 15.34 17.65 20.15 25.35 29.66 2011-11-19 11.15 6.74 12.06 15.15 17.55 21.24 26.17 29.67 2011-11-20 12.26 7.48 12.02 14.98 18.87 23.06 26.49 29.75 2011-11-21 13.44 8.06 11.89 15.32 19.71 22.36 26.72 30.15 2011-11-22 14.69 8.46 11.74 15.12 19.16 22.02 27.78 32.37 2011-11-23 15.88 8.56 11.52 14.42 19.27 21.77 28.37 34.23 2011-11-24 15.83 8.57 11.75 13.97 18.46 22.08 29.10 33.68 2011-11-25 15.96 8.44 11.78 14.99 17.71 22.79 29.12 34.06 2011-11-26 16.09 8.52 11.49 14.45 18.94 22.97 28.88 34.25 2011-11-27 15.79 8.62 11.52 15.58 21.25 23.39 28.65 34.03 2011-11-28 15.42 8.76 11.53 15.62 21.13 23.94 28.88 34.48 2011-11-29 14.99 9.08 11.93 15.70 21.46 23.45 29.15 34.66 2011-11-30 14.83 9.20 12.28 16.32 22.25 24.26 29.01 34.68 2011-12-01 14.46 9.12 12.57 16.53 22.17 23.91 28.57 34.92 2011-12-02 14.51 8.92 12.32 16.69 21.66 23.32 27.99 35.90 2011-12-03 14.46 8.89 12.43 17.44 21.54 23.03 26.72 36.64 2011-12-04 14.51 8.92 12.46 17.66 21.15 23.50 27.72 33.97 2011-12-05 14.17 8.76 12.06 17.42 20.72 23.30 29.94 34.81 2011-12-06 13.99 12.12 12.63 18.46 21.11 24.33 29.69 34.29 2011-12-07 13.64 11.08 12.57 18.55 21.74 24.08 28.85 33.93 2011-12-08 13.42 10.32 12.66 18.58 22.33 25.90 27.44 33.70 2011-12-09 13.42 10.18 12.63 19.77 21.97 26.16 27.97 33.20 2011-12-10 18.27 9.84 12.91 20.95 22.19 25.85 28.30 33.18 2011-12-11 18.30 7.52 12.85 20.11 22.79 26.15 28.40 33.69 2011-12-12 22.84 7.71 13.16 20.02 22.50 25.72 28.97 33.90 2011-12-13 27.38 7.88 12.69 19.52 23.65 25.94 28.93 33.73 2011-12-14 31.78 8.19 16.06 21.12 24.69 26.15 29.18 35.17 2011-12-15 31.44 8.25 17.14 20.61 24.72 26.48 30.03 34.27 2011-12-16 35.30 6.04 13.94 20.80 23.73 25.67 30.26 33.21 2011-12-17 34.16 6.10 15.42 21.14 24.14 26.07 31.14 33.53 2011-12-18 33.05 6.12 14.91 21.17 23.84 26.87 30.77 35.06 2011-12-19 31.97 6.19 14.08 21.00 23.27 27.09 30.17 36.56 2011-12-20 31.11 6.18 14.51 21.22 23.71 25.64 30.20 32.88 2011-12-21 31.18 6.08 14.15 21.23 23.28 26.25 30.03 33.31 2011-12-22 31.41 10.76 15.44 20.83 22.96 26.76 29.91 32.54 2011-12-23 31.18 13.45 16.27 20.75 23.36 27.74 29.67 32.65 2011-12-24 31.07 13.95 18.55 20.96 23.14 27.42 29.60 32.76 2011-12-25 30.78 13.60 18.79 21.33 23.89 27.21 29.80 36.38 2011-12-26 30.30 13.21 18.57 22.49 24.87 27.35 29.27 36.54 2011-12-27 30.26 14.98 18.57 22.74 24.10 27.04 29.35 33.75 2011-12-28 30.63 15.07 17.92 22.34 24.28 27.48 29.67 32.01 2011-12-29 30.58 13.99 17.71 22.33 24.31 27.27 29.43 31.45 2011-12-30 30.56 13.56 16.54 20.72 23.65 26.40 28.75 31.30 2011-12-31 30.68 13.39 16.91 21.80 24.82 26.31 29.07 30.77 2012-01-01 28.59 12.73 17.15 22.24 24.73 25.97 29.66 31.13 2012-01-02 28.85 12.44 16.67 22.15 24.53 26.05 29.30 31.25 2012-01-03 29.25 12.10 17.30 21.47 23.93 26.21 28.98 31.43 2012-01-04 29.29 11.74 17.12 21.61 24.09 26.21 28.37 31.32 2012-01-05 29.36 11.33 16.77 21.18 23.56 25.53 27.79 31.19 2012-01-06 31.48 11.54 16.97 21.16 23.43 25.31 27.80 30.70 2012-01-07 31.42 11.81 17.17 21.48 23.29 25.56 27.94 30.57 2012-01-08 31.50 12.17 17.60 21.07 23.07 25.54 27.96 30.42 2012-01-09 32.55 12.38 17.64 21.06 22.67 25.07 28.45 32.57 2012-01-10 32.73 12.39 17.41 21.16 23.28 25.50 28.35 37.63 2012-01-11 32.58 12.51 17.19 20.77 23.52 25.58 28.18 39.37 2012-01-12 32.45 12.51 16.90 20.57 23.08 25.11 28.30 35.48 2012-01-13 32.25 12.49 16.78 21.39 23.36 24.99 28.79 35.05 2012-01-14 31.31 12.59 16.36 21.16 23.28 24.72 29.20 31.09 2012-01-15 31.51 12.78 16.95 21.43 22.69 24.26 28.91 31.70 2012-01-16 31.16 12.76 17.33 20.97 22.24 24.22 28.53 32.22 2012-01-17 31.35 12.34 17.31 21.05 22.31 24.67 28.39 32.43 2012-01-18 31.12 11.99 17.24 20.63 22.48 24.82 29.93 32.03 2012-01-19 30.37 11.59 17.51 20.35 23.25 24.95 28.86 33.17 2012-01-20 28.79 11.15 17.79 20.74 23.42 25.81 28.88 32.75 2012-01-21 28.50 10.49 18.13 20.52 22.92 25.75 29.90 32.36 2012-01-22 27.62 10.23 18.29 21.15 23.79 26.05 29.65 32.45 2012-01-23 25.52 9.94 18.18 21.55 23.78 25.77 30.82 32.60 2012-01-24 25.61 8.17 16.42 21.31 23.33 25.78 31.43 35.64 2012-01-25 26.41 8.17 16.39 21.23 23.53 25.85 29.81 39.87 2012-01-26 24.64 8.17 16.40 21.24 23.60 25.08 29.15 36.28 2012-01-27 22.48 11.81 17.65 21.50 23.22 25.30 27.69 32.59 2012-01-28 22.05 11.97 17.42 21.13 22.60 24.73 27.70 28.52 2012-01-29 20.15 10.18 17.16 19.98 22.40 24.47 27.84 29.20 2012-01-30 17.85 5.48 15.61 19.94 22.35 23.89 27.51 29.30 2012-01-31 17.84 5.48 15.31 19.27 22.03 23.34 27.60 31.15 2012-02-01 18.30 5.55 15.24 19.20 22.10 23.48 26.99 34.67 2012-02-02 18.74 5.75 14.31 18.28 21.51 23.79 27.03 38.17 2012-02-03 18.89 5.90 13.72 18.10 21.44 23.74 26.99 38.33 2012-02-04 19.12 6.04 13.18 18.54 20.55 23.94 27.04 37.98 2012-02-05 -9999.0 6.23 12.69 18.32 20.49 24.19 26.96 39.92 2012-02-06 -9999.0 6.33 12.28 17.87 20.45 24.12 27.13 41.24 2012-02-07 -9999.0 5.93 11.75 17.71 21.25 24.33 27.23 41.93 2012-02-08 -9999.0 6.26 13.78 17.97 21.76 24.35 28.07 41.88 2012-02-09 -9999.0 4.97 11.77 17.47 21.10 23.88 26.74 41.55 2012-02-10 -9999.0 4.42 12.54 17.81 22.29 23.58 26.41 37.52 2012-02-11 -9999.0 4.42 13.86 17.80 21.94 23.79 26.71 33.82 2012-02-12 -9999.0 6.41 15.33 18.78 22.12 23.71 27.11 33.38 2012-02-13 -9999.0 6.55 14.82 18.67 21.79 23.97 27.38 32.82 2012-02-14 15.33 3.24 14.20 18.39 21.48 23.58 26.43 32.43 2012-02-15 15.33 3.17 13.45 17.88 21.07 23.68 26.79 35.56 2012-02-16 -9999.0 3.05 13.07 17.19 20.67 23.58 26.33 38.74 2012-02-17 -9999.0 2.86 12.63 17.10 20.45 23.30 26.46 39.30 2012-02-18 -9999.0 2.71 12.37 17.14 20.51 23.02 26.02 39.30 2012-02-19 -9999.0 2.63 12.03 16.40 20.28 22.59 26.55 39.31 2012-02-20 -9999.0 2.52 11.65 16.33 20.50 22.80 25.78 39.41 2012-02-21 -9999.0 6.70 11.30 16.55 20.48 22.93 26.07 39.41 2012-02-22 -9999.0 6.75 11.02 15.37 19.91 22.86 26.43 38.85 2012-02-23 -9999.0 6.80 9.93 16.36 19.77 22.87 26.90 38.59 2012-02-24 17.18 6.45 8.99 16.52 19.35 22.18 25.87 38.27 2012-02-25 17.26 3.18 8.39 16.09 18.91 21.77 25.44 38.04 2012-02-26 17.19 3.19 8.02 15.13 18.80 21.65 25.41 37.60 2012-02-27 17.09 3.19 7.81 14.74 18.44 22.10 24.95 34.48 2012-02-28 16.44 7.37 11.06 15.42 18.98 22.41 25.33 31.50 2012-02-29 15.71 6.43 11.38 19.57 21.75 23.94 28.79 30.56 2012-03-01 14.90 6.31 9.93 14.42 18.13 21.45 24.99 27.98 2012-03-02 15.00 6.42 8.00 13.85 17.67 21.66 25.32 28.00 2012-03-03 14.39 6.54 8.20 13.58 17.03 21.64 25.56 28.10 2012-03-04 13.92 6.64 9.57 13.79 17.32 21.57 25.24 29.71 2012-03-05 13.58 6.74 9.59 13.47 17.24 21.38 24.68 29.01 2012-03-06 13.00 6.67 8.45 12.87 17.25 20.77 23.77 29.78 2012-03-07 11.93 3.59 9.14 12.75 16.69 20.99 23.99 29.87 2012-03-08 12.68 3.66 9.49 12.76 17.46 20.25 23.80 29.30 2012-03-09 13.25 3.78 9.22 12.53 15.78 20.33 23.70 28.51 2012-03-10 13.57 3.87 8.09 12.47 16.14 19.66 23.29 27.76 2012-03-11 14.33 3.90 7.76 12.49 16.10 19.59 22.98 27.15 2012-03-12 15.07 1.68 7.57 12.54 16.05 19.45 22.15 26.47 2012-03-13 -9999.0 5.59 8.84 13.00 16.21 19.14 22.24 25.78 2012-03-14 -9999.0 5.54 9.04 12.97 16.02 18.81 22.08 25.93 2012-03-15 -9999.0 5.68 9.09 12.93 16.51 18.40 22.24 26.25 2012-03-16 -9999.0 2.63 8.66 13.01 15.65 17.93 22.31 25.54 2012-03-17 -9999.0 6.03 8.88 12.99 14.78 17.66 22.99 25.88 2012-03-18 -9999.0 6.23 8.42 12.79 15.38 17.95 22.57 26.14 2012-03-19 -9999.0 3.97 9.56 12.71 15.38 18.06 22.55 25.83 2012-03-20 -9999.0 3.97 7.40 12.60 15.04 17.59 21.64 25.09 2012-03-21 -9999.0 4.02 7.05 12.36 14.37 17.41 20.97 25.48 2012-03-22 -9999.0 4.13 6.60 11.85 14.47 16.87 20.42 25.50 2012-03-23 -9999.0 4.16 6.20 11.17 13.97 16.11 19.91 25.65 2012-03-24 -9999.0 4.34 6.03 11.73 14.73 15.85 18.16 25.14 2012-03-25 -9999.0 4.61 5.91 11.30 14.33 15.03 17.61 24.43 2012-03-26 -9999.0 4.79 5.83 11.43 13.64 15.12 17.45 24.44 2012-03-27 -9999.0 5.00 5.21 10.64 12.61 14.91 16.88 24.72 2012-03-28 -9999.0 5.10 5.43 10.37 12.48 14.88 16.58 25.18 2012-03-29 -9999.0 5.10 5.71 10.37 13.12 14.74 17.55 25.94 2012-03-30 -9999.0 5.20 5.47 9.79 12.32 14.61 16.96 26.91 2012-03-31 -9999.0 5.24 7.49 9.71 13.41 14.69 17.03 26.60 2012-04-01 -9999.0 5.12 5.44 8.97 13.30 14.64 16.22 26.25 2012-04-02 -9999.0 4.98 5.44 8.73 13.47 14.49 16.73 25.37 2012-04-03 -9999.0 4.92 5.50 8.89 12.68 14.24 16.40 25.10 2012-04-04 -9999.0 4.75 5.49 9.29 13.23 14.37 17.06 24.76 2012-04-05 -9999.0 4.80 5.32 9.24 13.26 14.53 16.61 24.81 2012-04-06 -9999.0 3.85 5.31 9.03 11.68 13.89 16.49 25.14 2012-04-07 -9999.0 3.85 5.48 9.55 13.18 14.76 16.89 25.67 2012-04-08 -9999.0 4.79 5.40 9.99 12.81 14.01 16.42 25.89 2012-04-09 -9999.0 4.80 6.38 10.47 12.69 14.53 16.42 25.77 2012-04-10 -9999.0 4.75 6.44 10.57 12.71 14.79 16.53 25.76 2012-04-11 -9999.0 4.70 7.00 11.09 11.58 14.35 16.30 25.45 2012-04-12 -9999.0 4.57 6.79 11.05 12.12 14.79 16.76 24.18 2012-04-13 -9999.0 4.46 6.88 10.96 12.24 14.43 17.22 23.03 2012-04-14 -9999.0 4.27 10.91 12.19 12.76 15.55 18.23 22.07 2012-04-15 -9999.0 4.91 9.44 11.95 12.79 15.85 19.41 21.23 2012-04-16 -9999.0 4.11 4.72 10.50 12.42 14.53 16.78 20.39 2012-04-17 -9999.0 4.13 6.11 10.80 12.50 13.55 16.41 20.63 2012-04-18 -9999.0 4.13 4.43 7.98 11.59 12.76 15.22 20.58 2012-04-19 -9999.0 4.12 4.47 5.21 10.99 12.77 13.98 20.54 2012-04-20 -9999.0 4.78 5.19 8.23 11.12 12.63 14.75 20.25 2012-04-21 -9999.0 4.12 4.58 5.95 11.65 12.47 15.12 20.18 2012-04-22 -9999.0 4.11 4.51 5.31 10.69 11.96 15.41 20.09 2012-04-23 -9999.0 4.11 4.84 7.98 10.90 11.86 16.17 20.04 2012-04-24 -9999.0 6.41 7.88 10.26 10.88 12.03 16.88 19.91 2012-04-25 -9999.0 6.61 7.57 9.50 10.11 11.35 17.10 19.97 2012-04-26 -9999.0 6.95 7.98 9.67 10.22 12.12 16.96 19.87 2012-04-27 -9999.0 9.53 9.64 9.87 10.11 13.99 17.87 19.81 2012-04-28 -9999.0 8.86 9.96 12.17 14.37 16.58 18.78 19.88 2012-04-29 -9999.0 -9999.00-9999.00-9999.00-9999.00-9999.00-9999.00-9999.00 2012-04-30 -9999.0 8.16 9.35 11.74 14.12 16.50 18.88 20.07