USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2026043000 WRF thwaites 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 30 00 -32.3 -35.1 28.57 26 27 21 232 -037 070072063 M33M34M33 000 01 30 01 -33.2 -35.6 28.58 27 39 24 235 003 079081060 M33M33M32 007 02 30 02 -34.4 -36.4 28.60 26 38 21 232 005 082081065 M34M33M31 009 03 30 03 -35.0 -37.2 28.63 25 37 16 227 029 080083071 M34M32M29 009 04 30 04 -35.1 -37.2 28.66 22 35 10 221 021 081083085 M34M31M28 002 05 30 05 -35.0 -36.8 28.69 20 30 5 216 042 084074086 M33M29M28 002 06 30 06 -35.3 -37.1 28.72 18 27 7 218 059 083077083 M32M28M27 004 07 30 07 -35.5 -37.5 28.74 16 24 11 222 079 082078079 M30M28M27 006 08 30 08 -35.6 -37.7 28.78 14 21 17 228 061 081071077 M30M27M27 006 09 30 09 -35.9 -38.1 28.80 14 20 18 229 031 081064076 M29M27M27 005 10 30 10 -36.1 -38.1 28.82 13 19 21 232 019 081065075 M28M27M27 003 11 30 11 -36.0 -38.0 28.85 13 19 24 235 002 082069076 M28M27M27 002 12 30 12 -36.1 -38.0 28.86 13 19 22 233 -002 082075076 M28M27M28 001 13 30 13 -36.0 -37.9 28.88 12 18 24 235 -029 083077075 M28M27M28 001 14 30 14 -35.8 -37.7 28.89 11 16 29 240 -044 083080077 M28M27M28 001 15 30 15 -35.7 -37.4 28.90 10 13 34 245 -031 084085071 M27M28M29 001 16 30 16 -35.5 -37.1 28.91 9 10 39 250 024 086080064 M27M28M28 000 17 30 17 -35.5 -36.9 28.90 9 10 47 258 -004 087068064 M27M27M27 000 18 30 18 -35.6 -37.1 28.91 10 12 56 267 -046 087061066 M27M27M27 000 19 30 19 -35.4 -37.0 28.90 11 15 63 274 -019 086057062 M26M26M27 000 20 30 20 -35.0 -36.8 28.90 11 15 68 279 -004 084058057 M26M26M27 000 21 30 21 -34.9 -37.0 28.90 12 17 75 286 -010 081059052 M27M26M26 000 22 30 22 -34.8 -37.5 28.90 13 19 81 292 -014 076057047 M26M26M26 000 23 30 23 -34.8 -38.8 28.88 14 22 84 295 -020 067053043 M26M26M25 000 24 01 00 -34.7 -38.7 28.88 15 24 84 295 -014 067047039 M26M25M25 000 25 01 01 -34.4 -38.4 28.87 17 25 85 296 -006 067042035 M26M25M24 000 26 01 02 -34.1 -38.3 28.85 18 28 88 299 -002 066038031 M26M24M24 000 27 01 03 -33.6 -38.7 28.84 18 30 92 303 -004 060033028 M25M24M24 000 28 01 04 -32.9 -38.7 28.82 19 32 95 306 -017 056028025 M25M24M23 000 29 01 05 -32.5 -38.6 28.80 20 32 96 307 -007 054026022 M25M23M23 000 30 01 06 -32.2 -38.5 28.79 19 32 95 306 001 054025020 M24M23M22 000 31 01 07 -32.1 -38.5 28.77 19 31 97 308 007 053023019 M23M22M22 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.