Station ID: KOAK Lat: 37.71 Long: -122.23 NAM Model Run: 12Z 17APR 2026 Cloud base and tops are now agl HR Valid 2m Tmp 2m Dpt 10m Dir 10m Spd TPrcp CPrcp 1000-500 500mb 850mb 500mb MSLP TCC PRS WX Tot Snowfall Vis Deg F Deg F deg kt in. in. Thk GPH Tmp Tmp mb % TEXT Clouds in SM 0 04/17 12Z 55 26 24 4 0.00 0.00 556 570 8.0 -15.3 1017 0 CLR 0.0 15.0 3 04/17 15Z 53 29 23 6 0.00 0.00 555 570 7.3 -15.2 1018 0 CLR 0.0 15.0 6 04/17 18Z 60 30 5 6 0.00 0.00 556 571 8.3 -15.0 1018 0 CLR 0.0 15.0 9 04/17 21Z 66 36 325 6 0.00 0.00 557 572 8.3 -14.7 1017 0 CLR 0.0 15.0 12 04/18 00Z 64 43 283 8 0.00 0.00 557 572 8.5 -14.2 1017 1 CLR 0.0 14.8 15 04/18 03Z 57 46 260 5 0.00 0.00 557 572 9.7 -14.5 1017 51 253BKN335 0.0 14.5 18 04/18 06Z 53 49 243 4 0.00 0.00 557 572 9.6 -14.7 1017 61 157BKN162 0.0 8.2 21 04/18 09Z 49 48 226 3 0.00 0.00 557 572 9.7 -15.2 1017 77 000BKN007 0.0 1.6 24 04/18 12Z 48 47 193 3 0.01 0.00 557 571 9.6 -15.4 1016 92 000BKN008 0.0 -1.0 27 04/18 15Z 46 46 193 1 0.00 0.00 557 571 9.8 -15.5 1017 100 000OVC315 0.0 -1.0 30 04/18 18Z 57 47 298 1 0.00 0.00 557 571 10.1 -15.5 1016 89 000BKN082 0.0 12.7 33 04/18 21Z 66 48 272 4 0.00 0.00 558 571 10.2 -15.5 1014 48 184SCT271 0.0 13.7 36 04/19 00Z 63 48 268 7 0.00 0.00 558 570 10.0 -15.2 1013 65 115BKN130 0.0 13.4 39 04/19 03Z 55 50 246 5 0.00 0.00 558 569 10.1 -15.7 1013 89 178BKN301 0.0 12.7 42 04/19 06Z 52 51 238 4 0.00 0.00 557 569 10.0 -16.1 1013 87 142BKN335 0.0 7.3 45 04/19 09Z 51 50 232 3 0.00 0.00 557 567 10.3 -17.3 1012 100 004OVC335 0.0 2.6 48 04/19 12Z 50 50 233 4 0.00 0.00 556 566 10.0 -17.6 1011 100 002OVC256 0.0 -0.9 51 04/19 15Z 51 50 237 4 0.00 0.00 554 565 9.5 -17.7 1012 100 002OVC294 0.0 -0.8 54 04/19 18Z 53 51 235 5 0.00 0.00 554 565 9.1 -17.2 1012 100 003OVC030 0.0 9.0 57 04/19 21Z 62 48 245 7 0.00 0.00 555 565 9.2 -16.1 1012 61 000BKN329 0.0 12.8 60 04/20 00Z 59 50 257 8 0.00 0.00 555 565 9.5 -15.2 1011 75 207BKN290 0.0 14.2 63 04/20 03Z 54 50 252 6 0.00 0.00 555 565 10.1 -15.8 1011 26 000SCT285 0.0 13.3 66 04/20 06Z 52 50 236 5 0.00 0.00 555 565 10.1 -15.9 1012 60 059BKN331 0.0 3.5 69 04/20 09Z 51 49 201 3 0.00 0.00 554 565 9.6 -15.5 1012 91 002BKN011 0.0 5.2 72 04/20 12Z 49 46 154 3 0.00 0.00 553 564 9.1 -15.2 1012 72 231BKN238 0.0 12.2 75 04/20 15Z 50 44 145 3 0.00 0.00 553 564 8.6 -15.0 1013 51 068BKN121 0.0 9.8 78 04/20 18Z 61 34 173 6 0.00 0.00 553 565 8.6 -15.5 1014 70 105BKN130 0.0 15.0 81 04/20 21Z 67 32 205 8 0.00 0.00 554 565 8.1 -15.7 1013 46 093SCT155 0.0 15.0 84 04/21 00Z 60 42 232 7 0.00 0.00 554 565 8.9 -15.3 1012 72 108BKN154 0.0 15.0