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January February March April May June July August September October November December 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 0000 UTC 0600 UTC1200 UTC1800 UTC Initialization Time: Wed 17 Apr 2024 - 0000 UTC Valid Time of Prognosis Closest to Current Time: Fri 19 Apr 2024 - 0000 UTC Select Numerical Model and Region GFS: North Pacific | South Pacific | Hawaii Regional View | Hawaii Close Up WRF-RCON Central Pacific WRF: Central Pacific | Hawaiian Islands | Big Island | Mauna Kea Select Orientation of Analyses Horizontal Analyses | Vertical Profiles Select Parameter Group CAPE | Postive Vorticity Advection | Precipitation | Precipitable Water | Relative Humidity | Seeing | Vertical Wind Shear | Temperature | Turbulence | Winds Relative Humidity Analyses Vertical Level Analysis Animation Sample Thumbnail 200 mb Current 84 | 120 | 180 hr Current 200 mb Relative Humidity Analysis 250 mb Current 84 | 120 | 180 hr 300 mb Current 84 | 120 | 180 hr 400 mb Current 84 | 120 | 180 hr 500 mb Current 84 | 120 | 180 hr 600 mb Current 84 | 120 | 180 hr 700 mb Current 84 | 120 | 180 hr 850 mb Current 84 | 120 | 180 hr 925 mb Current 84 | 120 | 180 hr 1000 mb Current 84 | 120 | 180 hr GFS output data courtesy of the National Centers for Environmental Predictions (NCEP)