USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025091912 AMPS 8km domain FCST UTC UTC T Td Altim Spd Gust Dir Grid VVV RH1RH2RH3 T1T2T3 ACCUM HR DAY HR (C) (C) (in Hg)(kts)(kts)(deg)(deg) (*) (% wrt water) (C) (*) 00 19 12 -13.0 -16.9 28.08 4 7 330 181 000 082054066 M11M10M11 000 03 19 15 -17.5 -20.3 28.10 7 12 323 174 -020 079061073 M11M11M11 000 06 19 18 -16.8 -17.4 28.12 8 13 323 174 -000 096071073 M12M11M11 001 09 19 21 -16.0 -17.0 28.17 8 13 321 172 008 092088080 M13M11M12 002 12 20 00 -15.7 -17.5 28.22 7 10 308 158 029 086091089 M14M13M13 044 15 20 03 -18.1 -20.1 28.32 11 16 344 195 006 084087087 M15M14M14 092 18 20 06 -21.2 -23.3 28.44 14 23 3 214 011 083084082 M16M15M14 021 21 20 09 -24.4 -26.2 28.60 14 24 19 230 045 085084077 M18M16M15 003 24 20 12 -24.8 -26.4 28.69 12 20 27 238 031 087082070 M18M16M16 000 27 20 15 -24.4 -26.0 28.78 9 16 27 238 065 086079067 M19M17M16 000 30 20 18 -22.0 -24.0 28.84 6 11 16 227 042 084077081 M17M16M16 001 33 20 21 -20.2 -22.6 28.88 4 5 0 211 -033 082084085 M18M18M18 025 36 21 00 -21.2 -23.4 28.91 4 6 306 157 019 082089080 M20M20M19 008 39 21 03 -22.2 -24.5 28.94 5 7 344 195 -003 081083083 M20M19M19 012 42 21 06 -24.6 -27.1 28.97 7 10 8 219 -011 080084087 M20M19M19 013 45 21 09 -25.6 -28.2 29.00 7 12 359 210 005 079085084 M22M20M20 005 48 21 12 -26.6 -29.2 29.00 7 12 345 196 006 079083084 M22M21M21 006 51 21 15 -27.1 -29.8 29.03 8 14 359 210 -008 078067083 M22M21M21 004 54 21 18 -27.2 -29.6 29.04 8 14 6 217 000 080048083 M23M21M21 002 57 21 21 -27.6 -30.0 29.04 9 14 8 219 002 080046085 M23M21M21 001 60 22 00 -28.2 -30.6 29.04 8 12 5 216 000 080071085 M22M21M21 001 63 22 03 -28.5 -30.6 29.03 6 9 9 220 -000 082077083 M22M21M21 000 66 22 06 -27.2 -29.3 29.02 4 5 26 237 -011 082078069 M21M21M21 000 69 22 09 -26.5 -28.9 28.98 3 4 55 265 -002 080081057 M21M21M21 000 72 22 12 -26.6 -28.8 28.92 4 4 88 299 -005 082080050 M20M20M21 000 75 22 15 -27.8 -29.9 28.89 7 8 79 290 -012 082075053 M20M20M20 000 78 22 18 -26.8 -29.3 28.84 6 7 80 291 -011 080066056 M20M20M20 000 81 22 21 -25.6 -27.9 28.78 6 6 102 313 -005 081056058 M19M19M19 000 84 23 00 -26.2 -27.7 28.73 7 9 97 308 -016 087053059 M19M19M19 000 87 23 03 -25.4 -26.4 28.67 6 7 86 297 -014 091052059 M18M18M19 000 90 23 06 -25.0 -26.0 28.63 5 5 100 311 -007 092053056 M18M18M18 000 93 23 09 -25.9 -26.7 28.59 6 7 99 310 -010 093051055 M18M18M18 000 96 23 12 -25.4 -26.9 28.56 6 6 89 300 -014 087050054 M18M18M18 000 99 23 15 -24.9 -27.2 28.54 5 5 93 304 -013 081049051 M18M18M18 000 102 23 18 -24.6 -27.3 28.55 5 6 92 303 -008 079048050 M18M18M18 000 105 23 21 -23.8 -27.3 28.55 5 5 98 309 -009 073048049 M18M18M18 000 108 24 00 -23.6 -27.1 28.56 5 5 100 311 -005 073048048 M18M18M18 000 111 24 03 -23.7 -27.0 28.58 4 4 99 310 -010 074050047 M18M18M18 000 114 24 06 -23.7 -27.0 28.60 4 4 88 299 -006 074049047 M17M18M18 000 117 24 09 -23.2 -27.1 28.61 3 4 59 270 -006 071049046 M17M17M18 000 120 24 12 -23.5 -28.1 28.63 2 3 8 219 -003 066050046 M18M18M18 000 * NOTES on units: VVV (vertical velocity) is given as tenths of a microbar per second at 700 hPa, with positive values indicating upward motion; ACCUM (accumulated precipitation, past 3h) is given as hundredths of a millimeter; RH1, RH2, and RH3 are the % RH at the surface, 1000', and 3000', respectively; T1, T2, and T3 are the temperatures at 500', 1000', and 1500', respectively. Gust is estimated according to the NCEP HRRR gust algorithm.