Name: NH Vortex Area Units: million km!U2!N Level: 850 K Source: MERRA2 (Data starting 2024-07-01 are from GEOS FP) Missing: -9999.0 Climatology: 1978/1979 to 2023/2024 Date Data Minimum 10% 30% Mean 70% 90% Maximum Fcst 2024-10-01 -9999.0 10.70 18.11 27.19 29.00 32.40 37.30 43.82 -1 2024-10-02 -9999.0 9.09 19.87 26.68 28.94 31.59 36.59 45.22 -1 2024-10-03 -9999.0 9.77 21.07 26.87 28.82 31.60 37.80 44.60 -1 2024-10-04 -9999.0 8.95 20.95 25.00 28.18 31.51 38.16 43.79 -1 2024-10-05 -9999.0 7.24 19.65 24.92 27.75 31.17 37.50 43.49 -1 2024-10-06 -9999.0 6.30 18.46 23.34 27.35 30.87 37.29 43.04 -1 2024-10-07 -9999.0 4.84 16.79 22.27 26.96 30.71 39.40 43.20 -1 2024-10-08 -9999.0 6.16 16.84 21.43 26.56 31.12 40.33 43.24 -1 2024-10-09 -9999.0 9.39 16.97 22.16 26.92 29.72 39.56 44.54 -1 2024-10-10 -9999.0 9.59 17.90 22.95 27.42 30.36 39.35 49.29 -1 2024-10-11 -9999.0 9.72 18.96 22.46 27.80 30.78 39.92 49.38 -1 2024-10-12 -9999.0 9.90 19.91 23.12 28.18 31.10 40.96 49.01 -1 2024-10-13 -9999.0 10.86 18.63 23.42 28.31 32.00 40.29 49.80 -1 2024-10-14 -9999.0 12.93 18.28 23.32 27.94 31.75 39.44 47.50 -1 2024-10-15 -9999.0 11.52 18.31 22.79 27.46 31.99 37.66 46.44 -1 2024-10-16 -9999.0 13.76 18.19 22.16 27.22 31.81 36.93 45.63 -1 2024-10-17 -9999.0 11.78 18.57 22.67 26.92 29.41 38.03 45.09 -1 2024-10-18 -9999.0 11.58 18.21 22.64 27.03 29.29 39.85 44.56 -1 2024-10-19 -9999.0 8.56 17.78 21.85 26.91 29.96 39.96 44.04 -1 2024-10-20 -9999.0 8.35 17.89 22.60 26.58 29.81 37.82 43.45 -1 2024-10-21 -9999.0 9.77 17.76 21.25 26.06 28.88 37.71 43.23 -1 2024-10-22 -9999.0 15.18 18.11 21.29 26.05 30.24 36.09 42.86 -1 2024-10-23 -9999.0 14.80 17.75 21.05 25.83 30.00 36.20 42.53 -1 2024-10-24 -9999.0 14.92 18.21 21.24 25.73 27.94 36.77 42.13 -1 2024-10-25 -9999.0 10.14 18.05 21.79 25.31 28.30 35.99 41.56 -1 2024-10-26 -9999.0 10.32 18.00 21.50 25.25 28.69 34.64 40.46 -1 2024-10-27 -9999.0 8.64 17.50 20.64 24.94 28.59 35.67 39.88 -1 2024-10-28 -9999.0 7.52 17.40 20.53 24.59 27.07 34.59 39.69 -1 2024-10-29 -9999.0 4.34 17.83 20.05 24.37 28.15 34.28 39.36 -1 2024-10-30 -9999.0 4.36 16.79 19.86 24.64 28.18 35.32 40.11 -1 2024-10-31 -9999.0 7.79 16.38 20.19 24.74 28.17 34.98 40.63 -1 2024-11-01 -9999.0 9.06 15.90 20.05 24.49 28.16 34.09 40.68 -1 2024-11-02 -9999.0 10.48 16.22 19.53 24.43 27.23 35.03 40.73 -1 2024-11-03 -9999.0 13.83 15.88 20.99 24.39 26.68 34.25 41.18 -1 2024-11-04 -9999.0 13.52 16.63 20.64 24.53 27.33 33.77 40.03 -1 2024-11-05 -9999.0 13.14 15.79 20.36 24.27 26.96 33.71 40.24 -1 2024-11-06 -9999.0 12.26 15.27 19.68 24.00 26.76 31.72 36.37 -1 2024-11-07 -9999.0 10.99 17.36 20.04 24.36 26.92 32.48 36.67 -1 2024-11-08 -9999.0 14.48 17.09 19.89 24.34 26.91 33.19 37.04 -1 2024-11-09 -9999.0 16.43 18.02 19.96 24.84 27.63 33.17 36.90 -1 2024-11-10 -9999.0 15.56 17.98 20.99 25.26 29.17 32.76 37.77 -1 2024-11-11 -9999.0 16.22 18.50 21.48 25.80 28.69 33.96 40.33 -1 2024-11-12 -9999.0 14.14 18.32 22.01 25.81 29.25 34.02 39.10 -1 2024-11-13 -9999.0 14.53 18.44 21.87 25.58 27.94 34.08 39.34 -1 2024-11-14 -9999.0 12.87 18.48 21.95 24.80 27.12 32.30 37.42 -1 2024-11-15 -9999.0 12.76 18.95 21.30 24.41 25.58 31.89 37.30 -1 2024-11-16 -9999.0 12.54 19.71 21.40 24.52 25.84 32.19 39.45 -1 2024-11-17 -9999.0 12.56 18.81 21.75 24.35 26.07 32.09 46.61 -1 2024-11-18 -9999.0 12.40 18.66 21.91 24.75 25.88 32.65 52.82 -1 2024-11-19 -9999.0 12.79 17.80 21.99 24.99 26.69 32.62 51.73 -1 2024-11-20 -9999.0 13.17 18.42 20.91 25.21 27.27 32.21 56.54 -1 2024-11-21 -9999.0 12.67 18.40 20.95 25.30 26.90 32.08 54.94 -1 2024-11-22 -9999.0 12.53 18.05 20.35 25.40 27.28 32.66 53.08 -1 2024-11-23 -9999.0 12.40 17.50 21.48 25.35 27.68 32.94 51.46 -1 2024-11-24 -9999.0 13.78 16.91 21.19 25.75 28.92 33.65 50.21 -1 2024-11-25 -9999.0 13.77 17.79 22.77 26.24 29.24 33.84 45.78 -1 2024-11-26 -9999.0 14.16 17.85 22.66 26.30 29.21 35.29 43.42 -1 2024-11-27 -9999.0 14.51 17.94 22.67 26.62 29.23 36.20 47.53 -1 2024-11-28 -9999.0 14.58 18.25 23.57 27.20 28.82 36.39 53.45 -1 2024-11-29 -9999.0 12.78 18.19 23.49 27.35 29.56 37.35 58.69 -1 2024-11-30 -9999.0 12.13 17.91 23.71 27.10 28.54 35.94 58.69 -1 2024-12-01 -9999.0 11.89 18.15 23.12 27.17 28.97 37.20 58.37 -1 2024-12-02 -9999.0 12.25 18.03 22.44 27.08 28.70 36.84 58.22 -1 2024-12-03 -9999.0 12.11 17.82 21.77 26.78 29.24 37.18 58.49 -1 2024-12-04 -9999.0 12.36 18.21 21.68 26.66 29.62 38.79 51.00 -1 2024-12-05 -9999.0 12.16 17.54 22.20 26.96 28.72 38.38 49.17 -1 2024-12-06 -9999.0 11.36 17.85 22.24 26.97 28.35 40.88 48.68 -1 2024-12-07 -9999.0 10.16 17.85 21.55 27.26 28.36 43.49 51.14 -1 2024-12-08 -9999.0 9.95 17.25 22.60 27.55 29.00 43.60 57.81 -1 2024-12-09 -9999.0 9.67 16.89 22.19 27.53 28.41 46.19 57.72 -1 2024-12-10 -9999.0 11.73 17.49 22.20 27.59 28.40 46.39 57.23 -1 2024-12-11 -9999.0 12.07 18.31 22.67 27.68 28.04 44.96 56.80 -1 2024-12-12 -9999.0 11.88 18.45 22.60 28.01 28.95 44.03 56.41 -1 2024-12-13 -9999.0 11.11 18.77 23.95 28.50 28.64 43.19 55.64 -1 2024-12-14 -9999.0 9.60 18.42 23.98 28.71 29.94 44.03 55.19 -1 2024-12-15 -9999.0 7.90 17.81 24.40 28.80 30.61 42.12 55.48 -1 2024-12-16 -9999.0 6.88 16.86 25.20 28.96 30.59 41.96 54.60 -1 2024-12-17 -9999.0 7.02 16.73 25.04 28.46 30.41 42.50 53.14 -1 2024-12-18 -9999.0 5.07 17.36 24.04 28.01 30.29 44.04 52.33 -1 2024-12-19 -9999.0 5.77 18.23 24.22 27.97 30.77 42.75 51.55 -1 2024-12-20 -9999.0 6.25 20.00 23.59 28.04 31.67 40.74 53.06 -1 2024-12-21 -9999.0 6.36 20.09 24.01 28.03 32.27 39.96 54.43 -1 2024-12-22 -9999.0 5.12 19.99 24.71 28.19 31.26 39.13 54.86 -1 2024-12-23 -9999.0 3.93 19.99 24.41 28.23 32.08 37.66 56.09 -1 2024-12-24 -9999.0 2.41 18.86 24.53 28.21 32.67 37.59 55.84 -1 2024-12-25 -9999.0 4.59 18.97 24.21 28.20 32.24 38.83 54.99 -1 2024-12-26 -9999.0 5.09 18.47 23.72 28.11 32.64 38.56 54.56 -1 2024-12-27 -9999.0 5.76 19.21 22.96 28.28 33.21 39.62 55.35 -1 2024-12-28 -9999.0 7.14 20.12 23.57 28.07 32.04 39.03 54.88 -1 2024-12-29 -9999.0 6.45 20.22 24.04 28.04 30.96 37.15 55.78 -1 2024-12-30 -9999.0 5.65 20.47 24.83 28.34 30.80 38.57 58.43 -1 2024-12-31 -9999.0 5.42 19.08 24.63 28.66 31.11 37.49 58.41 -1 2025-01-01 -9999.0 5.89 18.40 24.61 28.54 30.95 37.48 58.22 -1 2025-01-02 -9999.0 4.65 18.56 24.50 28.68 32.08 44.62 57.54 -1 2025-01-03 -9999.0 4.85 17.82 24.17 28.59 30.35 49.88 57.73 -1 2025-01-04 -9999.0 4.35 16.71 22.96 27.90 30.00 45.83 57.31 -1 2025-01-05 -9999.0 5.14 16.49 22.96 27.72 30.28 44.21 56.01 -1 2025-01-06 -9999.0 5.27 15.41 22.33 27.56 29.99 44.87 54.84 -1 2025-01-07 -9999.0 6.52 15.59 21.57 27.47 29.62 45.83 55.10 -1 2025-01-08 -9999.0 7.53 16.52 21.26 27.58 30.29 43.41 54.73 -1 2025-01-09 -9999.0 10.62 16.90 21.76 27.81 31.10 43.10 55.31 -1 2025-01-10 -9999.0 10.48 16.77 21.60 27.56 30.73 42.26 55.87 -1 2025-01-11 -9999.0 9.48 17.23 21.51 27.33 30.73 40.81 54.79 -1 2025-01-12 -9999.0 8.14 17.20 21.73 27.11 30.06 40.10 54.36 -1 2025-01-13 -9999.0 6.43 16.01 23.24 27.14 31.07 39.17 53.00 -1 2025-01-14 -9999.0 4.39 15.72 22.68 26.86 30.40 39.57 51.94 -1 2025-01-15 -9999.0 4.35 14.36 21.10 26.71 30.77 39.40 50.98 -1 2025-01-16 -9999.0 3.91 15.38 21.95 26.73 31.59 38.65 49.93 -1 2025-01-17 -9999.0 3.59 14.55 20.49 26.66 30.89 40.40 50.81 -1 2025-01-18 -9999.0 3.57 14.73 21.04 26.21 30.56 38.57 50.44 -1 2025-01-19 -9999.0 3.42 14.27 21.13 26.01 30.52 37.17 50.08 -1 2025-01-20 -9999.0 3.28 14.46 21.01 25.77 30.00 37.32 45.34 -1 2025-01-21 -9999.0 3.32 14.66 20.91 25.66 30.01 37.65 49.75 -1 2025-01-22 -9999.0 3.37 14.32 20.22 25.54 30.56 38.46 48.86 -1 2025-01-23 -9999.0 3.54 14.41 20.16 25.11 30.91 35.77 47.42 -1 2025-01-24 -9999.0 3.82 14.06 19.84 24.79 29.35 34.32 52.27 -1 2025-01-25 -9999.0 4.13 13.70 19.68 24.57 28.30 34.03 51.54 -1 2025-01-26 -9999.0 4.20 12.49 19.12 24.07 29.07 34.70 50.82 -1 2025-01-27 -9999.0 4.31 11.56 19.29 23.63 29.16 35.14 50.01 -1 2025-01-28 -9999.0 3.56 11.34 19.00 23.44 28.84 35.53 49.94 -1 2025-01-29 -9999.0 4.08 11.04 18.34 23.19 27.89 35.41 54.92 -1 2025-01-30 -9999.0 4.49 11.32 16.71 22.72 27.38 34.75 55.49 -1 2025-01-31 -9999.0 7.21 10.57 15.76 22.62 28.02 36.32 56.33 -1 2025-02-01 -9999.0 8.01 10.73 15.35 22.28 26.95 36.58 54.62 -1 2025-02-02 -9999.0 7.88 11.33 16.40 22.35 25.02 35.57 54.90 -1 2025-02-03 -9999.0 6.74 11.23 15.51 22.20 25.81 34.51 51.62 -1 2025-02-04 -9999.0 5.64 11.19 15.06 22.37 27.69 35.29 55.51 -1 2025-02-05 -9999.0 4.91 11.76 15.21 22.33 26.75 34.05 55.59 -1 2025-02-06 -9999.0 4.10 11.59 15.72 22.29 26.95 33.00 55.23 -1 2025-02-07 -9999.0 3.90 11.51 15.70 21.63 25.07 35.26 50.68 -1 2025-02-08 -9999.0 3.76 11.15 15.71 21.05 25.22 32.55 49.14 -1 2025-02-09 -9999.0 3.59 10.50 15.09 20.38 23.87 31.97 45.82 -1 2025-02-10 -9999.0 2.99 9.75 14.57 19.65 24.60 30.15 40.85 -1 2025-02-11 -9999.0 6.62 11.59 13.65 19.36 22.51 29.98 40.22 -1 2025-02-12 -9999.0 6.93 11.85 14.33 19.49 21.74 29.79 43.65 -1 2025-02-13 -9999.0 6.04 12.00 15.69 19.93 21.78 31.08 44.62 -1 2025-02-14 -9999.0 5.04 12.70 15.75 20.47 21.88 32.62 45.09 -1 2025-02-15 -9999.0 3.98 12.43 15.86 20.69 23.15 35.41 42.82 -1 2025-02-16 -9999.0 2.28 12.12 15.77 20.93 24.04 34.08 47.62 -1 2025-02-17 -9999.0 1.45 11.94 14.92 20.81 24.14 34.02 48.92 -1 2025-02-18 -9999.0 1.67 11.97 14.34 20.24 23.72 31.94 47.49 -1 2025-02-19 -9999.0 2.14 10.35 14.41 19.66 21.72 31.57 46.57 -1 2025-02-20 -9999.0 2.19 9.29 14.19 19.33 21.32 29.51 52.07 -1 2025-02-21 -9999.0 1.95 8.60 13.86 18.83 20.76 28.20 46.50 -1 2025-02-22 -9999.0 2.95 9.61 13.87 18.87 20.90 30.01 46.79 -1 2025-02-23 -9999.0 3.36 9.58 14.45 19.43 21.76 31.10 49.64 -1 2025-02-24 -9999.0 3.59 8.39 14.09 19.72 22.69 33.02 49.34 -1 2025-02-25 -9999.0 4.08 8.84 13.94 20.02 23.79 34.17 52.56 -1 2025-02-26 -9999.0 4.51 7.50 14.17 20.31 23.49 38.52 55.34 -1 2025-02-27 -9999.0 5.00 7.52 14.02 20.20 23.11 39.37 55.63 -1 2025-02-28 -9999.0 4.54 7.91 13.39 19.52 22.72 37.22 53.59 -1 2025-03-01 -9999.0 2.21 7.39 12.72 18.63 22.44 30.29 55.23 -1 2025-03-02 -9999.0 1.59 6.35 12.56 18.06 21.03 27.89 57.32 -1 2025-03-03 -9999.0 1.69 6.19 12.89 17.99 21.07 27.22 55.66 -1 2025-03-04 -9999.0 0.87 6.06 12.62 17.75 20.17 26.61 52.83 -1 2025-03-05 -9999.0 1.46 6.06 12.15 17.52 19.94 28.40 50.22 -1 2025-03-06 -9999.0 1.96 6.42 11.94 17.30 20.33 28.94 48.96 -1 2025-03-07 -9999.0 2.67 6.34 11.22 17.17 20.05 30.12 45.28 -1 2025-03-08 -9999.0 3.35 5.95 10.93 16.55 19.05 26.22 42.36 -1 2025-03-09 -9999.0 3.82 6.84 10.88 16.66 18.74 25.99 45.81 -1 2025-03-10 -9999.0 3.30 7.46 11.34 17.05 19.27 25.90 46.24 -1 2025-03-11 -9999.0 4.77 7.56 11.34 17.90 20.07 30.99 48.32 -1 2025-03-12 -9999.0 4.66 7.04 11.61 18.62 20.62 33.39 52.93 -1 2025-03-13 -9999.0 4.62 7.03 11.42 19.09 20.63 34.51 53.33 -1 2025-03-14 -9999.0 3.53 6.72 10.28 19.36 21.53 40.53 54.31 -1 2025-03-15 -9999.0 4.28 6.35 10.13 19.07 21.41 37.59 55.10 -1 2025-03-16 -9999.0 3.06 6.78 10.62 18.42 21.29 32.80 53.87 -1 2025-03-17 -9999.0 4.10 5.51 10.74 18.36 21.00 31.76 53.96 -1 2025-03-18 -9999.0 4.19 6.49 10.93 18.15 20.59 31.24 53.48 -1 2025-03-19 -9999.0 3.16 8.06 11.49 18.11 20.77 31.16 50.77 -1 2025-03-20 -9999.0 1.96 7.79 11.33 18.38 20.99 34.00 50.11 -1 2025-03-21 -9999.0 2.12 7.45 10.92 18.52 21.78 33.04 48.49 -1 2025-03-22 -9999.0 2.17 6.99 10.91 18.08 20.24 32.79 48.51 -1 2025-03-23 -9999.0 2.20 7.08 10.85 18.07 20.41 35.52 48.95 -1 2025-03-24 -9999.0 2.21 7.16 10.95 17.88 18.31 35.90 48.82 -1 2025-03-25 -9999.0 0.99 6.76 10.98 17.89 19.92 38.05 48.57 -1 2025-03-26 -9999.0 1.57 6.51 11.14 18.00 20.25 37.95 48.45 -1 2025-03-27 -9999.0 1.61 6.68 11.74 18.39 21.52 36.66 48.85 -1 2025-03-28 -9999.0 1.37 6.86 10.94 18.28 21.22 36.53 52.59 -1 2025-03-29 -9999.0 1.74 5.42 11.17 18.07 21.70 34.76 53.37 -1 2025-03-30 -9999.0 1.94 5.72 10.44 17.76 21.10 34.62 51.97 -1 2025-03-31 -9999.0 1.73 5.33 10.29 17.43 20.78 35.01 48.02 -1 2025-04-01 -9999.0 1.94 5.29 9.57 16.67 19.34 33.17 46.17 -1 2025-04-02 -9999.0 1.84 5.32 9.37 16.26 18.56 34.03 41.39 -1 2025-04-03 -9999.0 1.87 5.05 10.56 16.39 18.36 35.37 44.17 -1 2025-04-04 -9999.0 1.86 4.78 10.83 16.75 18.95 34.90 47.88 -1 2025-04-05 -9999.0 1.80 6.08 11.20 17.41 18.85 35.05 50.30 -1 2025-04-06 -9999.0 2.62 5.67 12.02 18.44 20.70 33.86 54.15 -1 2025-04-07 -9999.0 2.63 6.26 11.74 19.14 24.18 34.08 57.45 -1 2025-04-08 -9999.0 2.51 7.95 11.02 19.36 24.70 34.20 51.78 -1 2025-04-09 -9999.0 0.79 6.42 12.66 19.54 24.98 33.10 53.77 -1 2025-04-10 -9999.0 0.75 6.21 12.42 19.50 25.69 33.48 57.51 -1 2025-04-11 -9999.0 0.69 5.90 11.51 19.07 26.28 32.27 56.17 -1 2025-04-12 -9999.0 0.67 5.55 10.29 18.86 26.00 33.44 55.21 -1 2025-04-13 -9999.0 0.60 6.02 10.24 19.12 24.34 32.84 54.15 -1 2025-04-14 -9999.0 0.53 5.64 9.08 18.62 23.68 32.74 52.34 -1 2025-04-15 -9999.0 0.52 5.44 9.22 18.40 24.41 34.37 53.23 -1 2025-04-16 -9999.0 0.52 5.40 8.70 17.72 20.27 33.53 53.68 -1 2025-04-17 -9999.0 0.52 5.49 8.07 18.06 22.86 33.73 51.44 -1 2025-04-18 -9999.0 0.47 4.50 8.05 17.06 23.30 33.56 52.09 -1 2025-04-19 -9999.0 2.39 4.71 8.61 17.14 23.29 31.88 50.76 -1 2025-04-20 -9999.0 2.43 4.52 9.79 17.05 23.40 30.79 48.14 -1 2025-04-21 -9999.0 2.43 5.66 9.73 18.03 23.74 31.30 47.12 -1 2025-04-22 -9999.0 2.31 5.74 9.71 17.49 21.87 33.54 47.20 -1 2025-04-23 -9999.0 1.29 5.60 8.88 17.39 23.47 32.94 43.15 -1 2025-04-24 -9999.0 1.96 6.96 9.40 17.59 22.75 32.15 47.91 -1 2025-04-25 -9999.0 1.53 6.60 8.57 17.32 22.74 36.32 47.56 -1 2025-04-26 -9999.0 1.46 5.35 8.53 17.19 21.64 34.81 47.11 -1 2025-04-27 -9999.0 0.69 3.89 7.75 17.23 24.53 33.63 45.26 -1 2025-04-28 -9999.0 0.66 3.98 7.72 17.26 23.93 35.03 43.06 -1 2025-04-29 -9999.0 0.52 3.96 7.04 17.18 23.28 33.70 47.29 -1 2025-04-30 -9999.0 0.56 3.45 6.11 16.13 21.49 31.83 45.84 -1