Name: NH Vortex Area Units: million km!U2!N Level: 850 K Source: MERRA2 (Data starting 2024-04-01 are from GEOS FP) Missing: -9999.0 Climatology: 1978/1979 to 2022/2023 Date Data Minimum 10% 30% Mean 70% 90% Maximum 2023-10-01 30.09 10.70 17.94 26.97 28.97 32.51 37.40 43.82 2023-10-02 30.47 9.09 19.63 26.53 28.90 31.78 36.61 45.22 2023-10-03 25.11 9.77 21.04 27.10 28.91 31.70 38.04 44.60 2023-10-04 22.48 8.95 20.83 25.14 28.31 31.54 38.27 43.79 2023-10-05 20.56 7.24 19.55 24.93 27.91 31.33 37.69 43.49 2023-10-06 23.28 6.30 18.41 23.45 27.44 31.04 37.38 43.04 2023-10-07 17.76 4.84 16.66 22.61 27.16 30.88 39.64 43.20 2023-10-08 17.78 6.16 16.71 21.53 26.76 31.51 40.54 43.24 2023-10-09 18.46 9.39 16.95 22.28 27.11 29.87 40.06 44.54 2023-10-10 18.54 9.59 17.80 22.95 27.62 30.46 39.79 49.29 2023-10-11 18.57 9.72 19.60 22.63 28.01 30.84 40.07 49.38 2023-10-12 22.22 9.90 19.86 23.40 28.31 31.32 41.03 49.01 2023-10-13 24.91 10.86 18.48 23.18 28.38 32.03 40.33 49.80 2023-10-14 24.87 12.93 18.23 23.24 28.01 31.89 39.45 47.50 2023-10-15 24.86 11.52 18.29 22.64 27.52 32.10 37.80 46.44 2023-10-16 25.12 13.76 18.10 21.94 27.27 31.93 37.06 45.63 2023-10-17 24.32 11.78 18.49 22.45 26.97 29.91 38.15 45.09 2023-10-18 24.54 11.58 18.21 22.51 27.08 29.49 39.85 44.56 2023-10-19 24.70 8.56 17.78 21.61 26.96 30.04 40.05 44.04 2023-10-20 24.78 8.35 17.86 22.50 26.62 30.01 37.90 43.45 2023-10-21 24.26 9.77 17.73 21.19 26.10 29.04 37.75 43.23 2023-10-22 23.66 15.18 18.08 21.23 26.11 30.58 36.12 42.86 2023-10-23 22.79 14.80 17.74 20.94 25.90 30.42 36.22 42.53 2023-10-24 22.20 14.92 18.21 21.06 25.81 28.12 36.83 42.13 2023-10-25 21.76 10.14 18.02 21.84 25.39 28.36 36.09 41.56 2023-10-26 22.35 10.32 17.98 21.26 25.32 28.78 34.86 40.46 2023-10-27 23.05 8.64 17.42 20.60 24.98 28.85 35.72 39.88 2023-10-28 23.26 7.52 17.32 20.47 24.62 27.16 34.75 39.69 2023-10-29 23.55 4.34 17.81 19.98 24.39 28.35 34.45 39.36 2023-10-30 24.18 4.36 16.78 19.82 24.65 28.65 35.39 40.11 2023-10-31 24.49 7.79 16.34 20.13 24.74 28.28 35.07 40.63 2023-11-01 23.76 9.06 15.72 19.90 24.51 28.21 34.14 40.68 2023-11-02 25.19 10.48 16.22 19.32 24.41 27.28 35.11 40.73 2023-11-03 26.29 13.83 15.82 20.79 24.34 26.76 34.28 41.18 2023-11-04 28.26 13.52 16.62 20.47 24.45 26.79 33.82 40.03 2023-11-05 26.11 13.14 15.67 20.31 24.23 27.00 33.79 40.24 2023-11-06 24.84 12.26 15.20 19.51 23.98 26.88 31.83 36.37 2023-11-07 22.35 10.99 17.33 19.92 24.40 26.95 32.55 36.67 2023-11-08 19.64 14.48 17.04 20.08 24.44 26.96 33.29 37.04 2023-11-09 17.98 16.43 18.22 20.41 25.00 27.66 33.37 36.90 2023-11-10 20.99 15.56 17.94 20.98 25.36 29.50 32.77 37.77 2023-11-11 22.95 16.22 18.47 21.39 25.86 28.76 34.09 40.33 2023-11-12 24.33 14.14 18.19 21.83 25.84 29.34 34.03 39.10 2023-11-13 25.33 14.53 18.38 21.77 25.59 28.03 34.18 39.34 2023-11-14 24.33 12.87 18.45 21.91 24.82 27.25 32.31 37.42 2023-11-15 21.85 12.76 18.95 21.22 24.47 25.69 31.97 37.30 2023-11-16 21.63 12.54 19.71 21.37 24.59 26.05 32.31 39.45 2023-11-17 22.43 12.56 18.65 21.73 24.40 26.41 32.09 46.61 2023-11-18 20.80 12.40 18.59 21.93 24.84 26.09 32.71 52.82 2023-11-19 19.73 12.79 17.72 22.10 25.11 26.95 32.64 51.73 2023-11-20 19.47 13.17 18.29 21.14 25.34 27.42 32.32 56.54 2023-11-21 21.59 12.67 18.39 20.86 25.39 26.95 32.12 54.94 2023-11-22 21.61 12.53 17.95 20.30 25.49 27.38 32.71 53.08 2023-11-23 23.50 12.40 17.49 21.35 25.39 28.01 32.97 51.46 2023-11-24 25.76 13.78 16.76 21.14 25.75 28.97 33.73 50.21 2023-11-25 28.01 13.77 17.77 22.70 26.20 29.28 33.87 45.78 2023-11-26 26.65 14.16 17.81 22.54 26.29 29.34 35.30 43.42 2023-11-27 26.15 14.51 17.80 22.54 26.63 29.28 36.26 47.53 2023-11-28 26.03 14.58 18.03 23.48 27.23 28.94 36.40 53.45 2023-11-29 25.73 12.78 17.89 23.41 27.39 29.75 37.52 58.69 2023-11-30 25.09 12.13 17.50 23.56 27.15 28.59 35.98 58.69 2023-12-01 24.93 11.89 17.82 23.03 27.22 29.11 37.30 58.37 2023-12-02 25.36 12.25 17.90 22.43 27.12 28.86 37.03 58.22 2023-12-03 26.31 12.11 17.82 21.63 26.79 29.52 37.37 58.49 2023-12-04 26.06 12.36 18.10 21.50 26.68 29.67 39.07 51.00 2023-12-05 26.16 12.16 17.48 22.06 26.98 28.79 38.47 49.17 2023-12-06 25.86 11.36 17.64 22.11 26.99 28.40 41.20 48.68 2023-12-07 25.50 10.16 17.75 21.50 27.30 28.50 43.87 51.14 2023-12-08 25.28 9.95 17.14 22.47 27.60 29.07 43.78 57.81 2023-12-09 25.34 9.67 16.69 21.96 27.58 28.53 46.85 57.72 2023-12-10 23.84 11.73 17.32 21.91 27.67 28.48 46.85 57.23 2023-12-11 22.42 12.07 18.27 22.89 27.80 28.22 45.33 56.80 2023-12-12 21.83 11.88 18.34 22.78 28.15 29.10 44.36 56.41 2023-12-13 21.94 11.11 18.49 24.22 28.65 28.74 43.61 55.64 2023-12-14 22.94 9.60 18.23 24.58 28.84 30.16 44.05 55.19 2023-12-15 24.42 7.90 17.79 24.39 28.90 30.68 42.29 55.48 2023-12-16 26.55 6.88 16.71 25.11 29.02 30.65 42.00 54.60 2023-12-17 27.92 7.02 16.64 24.87 28.48 30.56 42.57 53.14 2023-12-18 28.78 5.07 17.29 23.78 28.00 30.49 44.35 52.33 2023-12-19 29.46 5.77 17.95 24.10 27.94 31.14 42.88 51.55 2023-12-20 31.38 6.25 19.89 23.48 27.96 31.75 40.97 53.06 2023-12-21 32.32 6.36 19.92 23.94 27.94 32.13 40.04 54.43 2023-12-22 31.17 5.12 19.78 24.49 28.12 31.38 39.27 54.86 2023-12-23 31.45 3.93 19.81 24.33 28.16 32.17 37.82 56.09 2023-12-24 31.11 2.41 18.84 24.50 28.14 32.78 37.61 55.84 2023-12-25 30.87 4.59 18.80 24.05 28.14 32.58 39.00 54.99 2023-12-26 29.55 5.09 18.26 23.55 28.08 32.73 38.57 54.56 2023-12-27 31.55 5.76 19.00 22.90 28.20 33.27 39.62 55.35 2023-12-28 31.14 7.14 20.08 23.48 28.00 32.18 39.23 54.88 2023-12-29 29.31 6.45 20.21 23.97 28.01 31.17 37.17 55.78 2023-12-30 28.72 5.65 20.43 24.76 28.33 31.08 38.76 58.43 2023-12-31 28.72 5.42 18.95 24.56 28.66 31.16 37.52 58.41 2024-01-01 26.74 5.89 18.12 24.46 28.59 31.02 37.52 58.22 2024-01-02 25.28 4.65 18.36 24.50 28.75 32.34 44.62 57.54 2024-01-03 24.49 4.85 17.60 24.12 28.69 30.85 50.03 57.73 2024-01-04 22.19 4.35 16.54 23.30 28.02 30.28 46.26 57.31 2024-01-05 20.79 5.14 16.38 23.10 27.88 30.53 44.54 56.01 2024-01-06 20.61 5.27 15.28 22.79 27.71 30.16 45.05 54.84 2024-01-07 20.52 6.52 15.38 22.11 27.62 29.73 46.05 55.10 2024-01-08 21.14 7.53 16.48 21.56 27.73 30.89 43.70 54.73 2024-01-09 21.44 10.62 16.80 22.12 27.95 31.19 43.56 55.31 2024-01-10 21.47 10.48 16.66 21.80 27.69 31.24 42.70 55.87 2024-01-11 21.65 9.48 17.11 21.60 27.46 31.18 41.06 54.79 2024-01-12 22.01 8.14 17.08 21.63 27.22 30.20 40.28 54.36 2024-01-13 21.42 6.43 15.97 23.39 27.27 31.44 39.22 53.00 2024-01-14 20.54 4.39 15.62 22.75 27.00 30.47 39.88 51.94 2024-01-15 19.18 4.35 14.35 22.19 26.88 30.93 39.43 50.98 2024-01-16 18.25 3.91 15.25 22.22 26.92 32.01 38.84 49.93 2024-01-17 16.68 3.59 14.51 21.40 26.88 30.90 40.79 50.81 2024-01-18 16.00 3.57 14.69 21.28 26.44 30.57 38.98 50.44 2024-01-19 15.62 3.42 14.24 21.59 26.24 30.62 37.45 50.08 2024-01-20 15.79 3.28 14.40 21.47 25.99 30.46 37.49 45.34 2024-01-21 14.75 3.32 14.98 21.25 25.90 30.47 37.78 49.75 2024-01-22 14.16 3.37 15.17 20.73 25.80 30.61 38.75 48.86 2024-01-23 13.61 3.54 15.35 20.35 25.36 30.93 35.87 47.42 2024-01-24 13.34 3.82 14.63 20.57 25.04 29.35 34.47 52.27 2024-01-25 13.24 4.13 14.31 19.96 24.83 28.37 34.04 51.54 2024-01-26 13.19 4.20 12.74 19.88 24.31 29.54 34.72 50.82 2024-01-27 13.20 4.31 11.38 19.75 23.86 29.79 35.35 50.01 2024-01-28 12.95 3.56 11.32 19.20 23.68 29.50 35.72 49.94 2024-01-29 12.35 4.08 10.89 18.49 23.43 28.09 35.67 54.92 2024-01-30 12.37 4.49 11.12 17.57 22.95 27.82 35.18 55.49 2024-01-31 12.68 7.21 10.48 16.93 22.84 28.85 36.38 56.33 2024-02-01 12.83 8.01 10.59 15.88 22.49 27.48 36.72 54.62 2024-02-02 13.03 7.88 11.32 16.57 22.55 25.24 35.58 54.90 2024-02-03 13.72 6.74 11.20 15.87 22.39 26.53 34.53 51.62 2024-02-04 13.73 5.64 11.18 15.22 22.56 27.88 35.68 55.51 2024-02-05 15.05 4.91 11.63 15.63 22.50 27.00 34.49 55.59 2024-02-06 16.26 4.10 11.53 15.63 22.42 27.18 33.34 55.23 2024-02-07 15.99 3.90 11.44 15.60 21.75 25.41 35.55 50.68 2024-02-08 15.59 3.76 11.05 15.89 21.18 25.46 32.71 49.14 2024-02-09 15.07 3.59 10.49 15.32 20.50 23.96 32.22 45.82 2024-02-10 13.94 2.99 9.59 14.91 19.77 24.65 30.23 40.85 2024-02-11 12.09 6.62 11.57 14.03 19.53 22.53 30.08 40.22 2024-02-12 14.01 6.93 11.80 14.75 19.61 21.93 29.83 43.65 2024-02-13 14.02 6.04 11.94 15.89 20.06 22.05 31.10 44.62 2024-02-14 13.68 5.04 12.69 16.10 20.62 21.91 32.71 45.09 2024-02-15 13.30 3.98 12.39 16.10 20.86 23.47 35.43 42.82 2024-02-16 13.64 2.28 12.04 15.86 21.09 24.42 34.21 47.62 2024-02-17 12.28 1.45 11.93 15.27 21.00 25.01 34.49 48.92 2024-02-18 12.09 1.67 11.95 14.45 20.42 24.45 32.08 47.49 2024-02-19 13.57 2.14 10.05 14.58 19.80 22.15 31.86 46.57 2024-02-20 12.14 2.19 9.28 14.36 19.49 21.74 29.55 52.07 2024-02-21 11.30 1.95 8.55 14.07 18.99 21.18 28.27 46.50 2024-02-22 10.05 2.95 9.57 14.10 19.07 21.50 30.51 46.79 2024-02-23 9.92 3.36 9.58 14.68 19.64 22.39 31.75 49.64 2024-02-24 8.70 3.59 8.57 14.17 19.96 22.77 33.23 49.34 2024-02-25 9.56 4.08 8.80 14.11 20.25 23.83 34.66 52.56 2024-02-26 10.14 4.51 7.47 14.35 20.53 23.63 38.73 55.34 2024-02-27 10.77 5.00 7.51 14.29 20.40 23.23 39.54 55.63 2024-02-28 10.85 4.54 7.85 13.81 19.71 22.76 37.30 53.59 2024-03-01 11.06 2.21 7.32 12.93 18.80 22.49 30.89 55.23 2024-03-02 11.19 1.59 6.25 13.41 18.21 21.26 28.17 57.32 2024-03-03 11.07 1.69 6.01 13.10 18.14 21.37 27.26 55.66 2024-03-04 10.95 0.87 5.92 12.83 17.90 20.39 26.65 52.83 2024-03-05 10.84 1.46 5.93 12.76 17.66 20.45 28.62 50.22 2024-03-06 10.56 1.96 6.38 12.19 17.45 20.52 29.41 48.96 2024-03-07 10.33 2.67 6.32 11.48 17.32 20.16 30.67 45.28 2024-03-08 10.08 3.35 5.89 11.15 16.70 19.05 26.51 42.36 2024-03-09 9.74 3.82 6.73 10.98 16.82 18.79 26.30 45.81 2024-03-10 9.54 3.30 7.42 11.63 17.22 19.45 26.18 46.24 2024-03-11 8.87 4.77 7.50 11.78 18.10 20.28 31.43 48.32 2024-03-12 8.05 4.66 6.99 11.82 18.86 20.65 33.66 52.93 2024-03-13 7.10 4.62 7.43 11.49 19.36 20.96 34.63 53.33 2024-03-14 6.39 3.53 7.14 10.84 19.65 21.53 41.70 54.31 2024-03-15 5.46 4.28 7.11 10.50 19.37 21.88 38.18 55.10 2024-03-16 4.75 3.06 7.00 10.67 18.73 21.71 33.24 53.87 2024-03-17 4.30 4.10 6.28 10.75 18.67 21.61 32.30 53.96 2024-03-18 4.19 4.43 7.71 11.10 18.46 20.59 31.54 53.48 2024-03-19 4.07 3.16 9.02 12.03 18.42 20.87 31.19 50.77 2024-03-20 4.06 1.96 8.69 11.45 18.69 21.03 34.43 50.11 2024-03-21 4.19 2.12 8.19 11.01 18.84 21.90 33.55 48.49 2024-03-22 4.22 2.17 7.57 11.16 18.39 20.34 33.21 48.51 2024-03-23 4.21 2.20 7.92 11.09 18.38 21.13 35.60 48.95 2024-03-24 4.23 2.21 7.80 11.13 18.18 18.64 35.98 48.82 2024-03-25 4.21 0.99 7.49 11.09 18.19 20.74 38.25 48.57 2024-03-26 4.34 1.57 7.23 11.29 18.30 21.07 38.37 48.45 2024-03-27 4.44 1.61 7.58 11.79 18.70 21.59 37.30 48.85 2024-03-28 4.62 1.37 7.88 11.11 18.58 21.65 36.83 52.59 2024-03-29 4.68 1.74 6.58 11.58 18.37 21.85 35.07 53.37 2024-03-30 4.75 1.94 6.37 10.72 18.05 21.26 35.20 51.97 2024-03-31 4.88 1.73 5.97 10.82 17.71 20.86 35.11 48.02 2024-04-01 5.14 1.94 5.49 10.23 16.93 19.43 33.57 46.17 2024-04-02 5.08 1.84 5.71 10.45 16.51 18.67 34.24 41.39 2024-04-03 5.37 1.87 5.01 10.72 16.63 18.45 35.37 44.17 2024-04-04 5.26 1.86 5.13 10.99 17.01 19.01 34.97 47.88 2024-04-05 5.01 1.80 6.59 11.59 17.68 18.98 35.09 50.30 2024-04-06 4.60 2.62 5.67 11.63 18.49 21.45 34.09 54.15 2024-04-07 4.84 2.63 6.03 11.50 19.22 24.34 34.33 57.45 2024-04-08 4.70 2.51 7.93 11.02 19.21 24.45 34.31 51.78 2024-04-09 5.08 0.79 6.13 12.64 19.39 24.83 33.21 53.77 2024-04-10 5.30 0.75 5.87 12.21 19.34 25.35 33.57 57.51 2024-04-11 5.57 0.69 5.66 11.49 18.91 25.99 32.29 56.17 2024-04-12 5.32 0.67 5.53 10.11 18.68 24.26 33.64 55.21 2024-04-13 5.01 0.60 5.98 10.23 19.00 23.76 32.96 54.15 2024-04-14 4.63 0.53 5.51 9.04 18.49 22.80 32.94 52.34 2024-04-15 4.59 0.52 5.32 9.11 18.27 24.22 34.41 53.23 2024-04-16 4.55 0.52 5.30 8.68 17.67 20.56 33.87 53.68 2024-04-17 13.11 0.52 5.46 8.02 17.85 21.93 34.07 51.44 2024-04-18 20.83 0.47 4.50 7.98 16.85 23.11 33.83 52.09 2024-04-19 31.97 2.39 4.70 8.25 16.79 22.98 31.46 50.76 2024-04-20 38.48 2.43 4.48 9.70 16.54 21.70 29.89 48.14 2024-04-21 44.87 2.43 5.57 9.59 17.54 23.00 31.09 47.12 2024-04-22 43.38 2.31 5.63 9.70 17.03 21.25 32.21 47.20 2024-04-23 45.89 1.29 5.59 8.83 16.98 22.74 31.45 43.15 2024-04-24 43.34 1.96 6.96 9.37 17.36 22.36 32.33 47.91 2024-04-25 44.08 1.53 6.56 8.51 17.15 22.58 37.13 47.56 2024-04-26 43.45 1.46 5.18 8.33 17.03 20.40 35.02 47.11 2024-04-27 36.46 0.69 3.58 7.75 17.02 23.66 33.69 45.26 2024-04-28 35.48 0.66 3.78 7.71 17.05 22.33 35.37 43.06 2024-04-29 36.61 0.52 3.90 6.96 16.80 22.90 32.77 47.29 2024-04-30 35.01 0.56 3.37 6.00 15.63 21.06 31.12 45.84