USAP Siple Dome (SDM) (lat, lon) = (-81.664, -149.0175) Forecast initialized at 2025091900 AMPS 2p67km 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 00 -9.8 -12.7 28.20 5 7 158 9 000 082073075 M10M09M10 000 01 19 01 -11.8 -13.7 28.20 9 11 151 2 039 086065081 M10M09M10 003 02 19 02 -12.1 -14.3 28.19 9 12 137 348 020 084063083 M09M09M10 000 03 19 03 -11.7 -14.5 28.16 10 17 139 350 006 080065083 M09M09M10 001 04 19 04 -11.3 -14.4 28.17 12 20 130 341 031 078062082 M09M09M10 002 05 19 05 -11.6 -14.4 28.11 11 19 126 337 -005 080048080 M09M09M10 002 06 19 06 -11.6 -13.8 28.11 10 18 117 328 -007 084074075 M09M09M10 003 07 19 07 -11.9 -14.5 28.09 10 18 106 317 -002 081060075 M09M09M09 002 08 19 08 -12.0 -15.1 28.05 9 13 95 306 045 078049084 M08M08M09 000 09 19 09 -11.5 -15.0 28.05 8 12 57 268 027 076077091 M09M09M10 001 10 19 10 -12.2 -15.4 28.05 6 9 31 242 006 077066090 M09M10M11 001 11 19 11 -12.6 -15.8 28.04 5 8 10 221 -024 077060091 M09M10M11 000 12 19 12 -13.0 -16.0 28.00 6 7 359 210 -019 078064085 M10M10M11 000 13 19 13 -14.2 -16.6 28.03 8 11 352 203 -018 082071080 M11M10M11 000 14 19 14 -14.8 -16.6 28.03 9 12 352 203 -008 086075081 M10M10M11 000 15 19 15 -15.5 -17.1 28.05 10 14 4 215 -012 088083082 M11M11M11 000 16 19 16 -16.1 -17.3 28.07 11 16 6 217 -001 090081074 M11M11M11 000 17 19 17 -16.5 -17.4 28.09 12 19 1 212 022 093084070 M12M11M11 000 18 19 18 -17.0 -17.5 28.10 13 19 0 211 -010 096080066 M12M11M11 000 19 19 19 -16.2 -16.8 28.12 12 19 353 204 060 095073066 M12M11M11 000 20 19 20 -15.5 -16.1 28.15 12 20 349 200 058 095073071 M12M11M11 001 21 19 21 -15.0 -15.8 28.17 11 19 343 194 015 094076069 M12M12M12 002 22 19 22 -14.9 -15.9 28.21 11 17 346 197 020 092080074 M12M12M12 003 23 19 23 -15.3 -16.5 28.23 10 14 352 203 -013 091084085 M13M12M13 006 24 20 00 -16.1 -17.5 28.26 10 15 358 209 005 089089088 M13M13M13 008 25 20 01 -16.9 -18.5 28.30 12 16 358 209 014 087088086 M14M13M13 010 26 20 02 -17.7 -19.3 28.33 13 18 355 206 -003 087085084 M14M13M13 005 27 20 03 -18.1 -19.8 28.36 13 19 355 206 002 087085083 M14M13M13 002 28 20 04 -18.5 -20.0 28.40 14 21 355 206 009 088083082 M15M13M13 004 29 20 05 -19.1 -20.7 28.45 14 21 2 213 033 087081080 M15M13M13 003 30 20 06 -19.2 -20.9 28.48 14 20 7 218 054 086081084 M15M14M14 004 31 20 07 -19.1 -21.0 28.51 13 20 12 223 064 085081085 M15M14M14 006 32 20 08 -19.3 -21.3 28.54 14 20 14 225 052 084082085 M16M14M14 009 33 20 09 -19.5 -21.7 28.59 14 20 14 225 046 083082085 M16M14M14 010 34 20 10 -20.3 -22.5 28.61 13 19 16 227 037 083080082 M16M14M14 006 35 20 11 -21.0 -23.0 28.64 13 19 17 228 046 084079080 M16M15M15 002 36 20 12 -21.2 -23.1 28.66 12 17 20 231 059 084077081 M15M15M15 001 37 20 13 -21.2 -23.0 28.70 11 16 22 233 050 085076082 M16M15M15 000 38 20 14 -21.4 -23.0 28.72 11 15 25 236 041 086077083 M16M15M15 000 39 20 15 -21.5 -23.0 28.75 11 15 27 237 047 087079084 M16M15M15 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 1h) 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.