Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 18SEP 2026 Clouds Bases 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 Low Middle High Max Min Sfc Snowfall PWAT 925mb Deg F Deg F deg kt in. in. Thk GPH Tmp Tmp mb % TEXT Clouds Clouds Clouds Tmp Tmp Vis in in Tmp 0 09/18 12Z 56 54 273 1 0.00 0.00 563 580 12.1 -10.5 1020.0 1 CLR CLR CLR **** **** 15.0 0.0 0.734 14.7 3 09/18 15Z 58 54 220 1 0.00 0.00 564 581 12.9 -10.7 1020.9 0 CLR CLR CLR 58 56 15.0 0.0 0.830 15.0 6 09/18 18Z 67 55 289 3 0.00 0.00 565 582 13.3 -10.0 1020.5 0 CLR CLR CLR 68 56 15.0 0.0 0.795 15.9 9 09/18 21Z 70 55 286 9 0.00 0.00 568 584 14.2 -8.7 1018.5 0 CLR CLR CLR 71 67 15.0 0.0 0.754 16.9 12 09/19 00Z 67 55 278 8 0.00 0.00 570 584 15.1 -7.7 1017.0 0 CLR CLR CLR 72 65 15.0 0.0 0.767 18.8 15 09/19 03Z 59 56 257 5 0.00 0.00 570 585 16.6 -7.3 1017.3 0 CLR CLR CLR 67 59 13.5 0.0 0.703 19.3 18 09/19 06Z 58 55 212 5 0.00 0.00 571 585 16.8 -6.9 1017.4 5 010FEW014 CLR CLR 67 58 13.5 0.0 0.713 20.8 21 09/19 09Z 58 55 206 5 0.00 0.00 571 585 17.4 -7.2 1016.9 46 009SCT016 CLR CLR 59 57 15.0 0.0 0.738 20.8 24 09/19 12Z 58 54 184 4 0.00 0.00 570 584 17.4 -7.9 1016.1 66 009BKN016 CLR 315FEW342 59 57 15.0 0.0 0.760 21.0 27 09/19 15Z 59 54 165 3 0.00 0.00 571 584 17.4 -8.0 1016.2 61 010SCT015 CLR 304SCT324 59 57 15.0 0.0 0.742 20.3 30 09/19 18Z 69 55 250 2 0.00 0.00 571 585 17.7 -7.8 1015.9 43 010FEW015 CLR 298SCT320 69 57 15.0 0.0 0.709 20.3 33 09/19 21Z 73 56 291 8 0.00 0.00 572 584 18.3 -7.5 1014.4 0 CLR CLR CLR 74 69 15.2 0.0 0.686 20.5 36 09/20 00Z 67 55 285 10 0.00 0.00 572 584 18.8 -7.4 1013.4 2 CLR CLR 352FEW368 74 66 15.0 0.0 0.638 22.0 39 09/20 03Z 59 54 233 5 0.00 0.00 572 584 19.1 -7.3 1013.9 21 CLR CLR 348FEW384 67 59 13.5 0.0 0.603 21.9 42 09/20 06Z 58 54 185 5 0.00 0.00 572 583 19.1 -7.4 1013.8 38 010FEW013 CLR 344SCT396 67 58 14.0 0.0 0.560 23.0 45 09/20 09Z 57 55 216 4 0.00 0.00 571 582 18.8 -8.0 1013.6 98 FEW CLR 338OVC396 58 57 14.0 0.0 0.587 22.4 48 09/20 12Z 58 54 213 4 0.00 0.00 570 581 18.5 -8.8 1013.7 94 008SCT015 CLR 314BKN388 59 57 15.0 0.0 0.620 21.4 51 09/20 15Z 59 54 208 3 0.00 0.00 569 581 18.3 -9.1 1014.3 98 009BKN015 228FEW246 266BKN358 59 58 15.0 0.0 0.672 20.7 54 09/20 18Z 64 54 252 4 0.00 0.00 569 581 18.3 -9.8 1014.0 99 009SCT015 222SCT246 260OVC362 64 57 15.0 0.0 0.687 20.1 57 09/20 21Z 69 54 263 7 0.00 0.00 569 580 18.2 -10.9 1013.2 100 CLR 203BKN246 282OVC351 70 65 15.0 0.0 0.734 19.6 60 09/21 00Z 63 54 271 7 0.00 0.00 567 578 18.2 -12.6 1013.1 100 CLR 193BKN245 271OVC352 70 62 15.0 0.0 0.797 20.3 63 09/21 03Z 59 55 258 6 0.00 0.00 567 578 18.3 -12.9 1013.5 98 CLR 157BKN227 263BKN337 63 59 13.6 0.0 0.790 20.9 66 09/21 06Z 58 54 247 5 0.00 0.00 567 578 18.5 -11.9 1013.8 88 009SCT017 157SCT223 266SCT335 63 57 13.8 0.0 0.781 19.4 69 09/21 09Z 58 53 249 5 0.00 0.00 567 577 18.5 -12.7 1013.0 94 006BKN019 137FEW166 CLR 58 58 15.0 0.0 0.718 19.7 72 09/21 12Z 58 53 249 5 0.00 0.00 566 577 18.5 -12.9 1013.2 95 005BKN020 138FEW162 292FEW315 58 58 15.0 0.0 0.724 17.7 75 09/21 15Z 59 53 211 2 0.00 0.00 566 577 18.1 -13.6 1013.8 76 007BKN021 141FEW160 287FEW302 59 57 15.0 0.0 0.754 18.5 78 09/21 18Z 66 53 227 2 0.00 0.00 566 578 18.4 -13.2 1013.5 40 007SCT021 141FEW160 287FEW302 66 57 15.0 0.0 0.838 18.1 81 09/21 21Z 71 54 280 7 0.00 0.00 567 578 18.8 -12.4 1012.1 0 CLR CLR CLR 71 67 15.0 0.0 0.855 18.4 84 09/22 00Z 65 55 284 8 0.00 0.00 568 578 19.2 -12.3 1011.8 0 CLR CLR CLR 71 64 15.0 0.0 0.772 20.6 87 09/22 03Z 59 55 271 4 0.00 0.00 569 579 19.5 -12.0 1012.3 0 CLR CLR CLR 65 59 13.5 0.0 0.775 21.7 90 09/22 06Z 57 54 251 3 0.00 0.00 569 580 20.0 -11.7 1012.4 3 CLR CLR 318FEW335 65 57 13.7 0.0 0.796 22.0 93 09/22 09Z 56 53 196 2 0.00 0.00 569 579 20.3 -11.9 1011.7 12 CLR CLR 304FEW340 57 56 15.0 0.0 0.824 22.1 96 09/22 12Z 56 53 164 3 0.00 0.00 569 579 20.3 -11.3 1011.6 11 CLR CLR 298FEW333 57 56 15.0 0.0 0.790 22.1 99 09/22 15Z 58 53 177 2 0.00 0.00 569 580 20.2 -10.8 1012.7 0 CLR CLR CLR 58 56 14.9 0.0 0.759 20.9 102 09/22 18Z 68 54 281 2 0.00 0.00 570 581 20.5 -10.1 1013.0 0 CLR CLR CLR 68 56 15.0 0.0 0.789 20.9 105 09/22 21Z 74 55 293 7 0.00 0.00 573 582 20.8 -8.8 1010.9 0 CLR CLR CLR 75 68 15.0 0.0 0.756 22.2 108 09/23 00Z 68 55 292 6 0.00 0.00 574 582 21.7 -8.7 1009.7 0 CLR CLR CLR 75 66 15.0 0.0 0.712 24.0 111 09/23 03Z 61 55 294 5 0.00 0.00 574 583 21.7 -7.7 1010.6 0 CLR CLR CLR 68 61 15.1 0.0 0.731 23.8 114 09/23 06Z 59 55 222 2 0.00 0.00 575 584 22.6 -7.5 1011.0 0 CLR CLR CLR 68 59 15.0 0.0 0.724 25.2 117 09/23 09Z 58 54 259 1 0.00 0.00 575 584 22.6 -7.6 1010.7 0 CLR CLR CLR 59 58 15.0 0.0 0.738 25.8 120 09/23 12Z 58 54 325 1 0.00 0.00 574 583 22.3 -7.6 1010.6 0 CLR CLR CLR 59 58 15.0 0.0 0.735 25.0 123 09/23 15Z 62 52 12 2 0.00 0.00 574 584 21.9 -8.2 1011.5 0 CLR CLR CLR 62 58 15.0 0.0 0.729 24.9 126 09/23 18Z 75 53 291 3 0.00 0.00 574 584 21.8 -7.8 1011.4 0 CLR CLR CLR 75 58 15.0 0.0 0.730 24.7 129 09/23 21Z 80 54 290 6 0.00 0.00 576 584 22.4 -8.0 1009.7 2 CLR CLR 410FEW423 81 75 15.0 0.0 0.734 26.3 132 09/24 00Z 74 54 295 8 0.00 0.00 576 583 22.7 -8.3 1008.9 2 CLR CLR 410FEW422 82 73 15.0 0.0 0.711 27.3 135 09/24 03Z 63 54 289 4 0.00 0.00 575 583 23.0 -9.7 1009.7 5 CLR CLR 402FEW420 74 63 15.0 0.0 0.696 26.5 138 09/24 06Z 63 53 266 2 0.00 0.00 574 583 22.5 -10.4 1010.7 48 CLR CLR 371SCT434 74 62 15.0 0.0 0.791 25.9 141 09/24 09Z 62 53 289 2 0.00 0.00 573 582 22.2 -10.5 1010.4 83 CLR CLR 357BKN426 63 62 15.0 0.0 0.762 26.3 144 09/24 12Z 60 53 311 2 0.00 0.00 572 581 22.1 -10.6 1010.4 92 CLR CLR 350BKN424 63 60 15.0 0.0 0.763 26.1 147 09/24 15Z 62 54 287 1 0.00 0.00 571 581 21.9 -10.5 1011.7 100 CLR CLR 327OVC408 62 60 15.0 0.0 0.799 24.4 150 09/24 18Z 71 54 300 3 0.00 0.00 571 581 21.2 -10.3 1012.5 100 CLR CLR 308OVC401 71 60 15.0 0.0 0.835 23.2 153 09/24 21Z 74 55 302 8 0.00 0.00 571 581 20.8 -10.1 1012.0 100 CLR CLR 274OVC386 76 72 15.0 0.0 0.868 23.5 156 09/25 00Z 70 56 301 9 0.00 0.00 571 581 20.5 -9.6 1011.6 98 CLR CLR 279BKN368 76 69 15.0 0.0 0.837 23.8 159 09/25 03Z 62 57 314 5 0.00 0.00 571 582 20.4 -9.8 1012.4 11 CLR CLR 351FEW378 70 62 15.0 0.0 0.779 23.6 162 09/25 06Z 60 56 307 3 0.00 0.00 571 582 20.6 -9.8 1012.9 14 CLR CLR 353FEW380 70 60 15.0 0.0 0.774 23.4 165 09/25 09Z 60 56 316 1 0.00 0.00 570 581 20.6 -10.0 1012.7 38 CLR CLR 354SCT421 60 60 15.0 0.0 0.823 23.0 168 09/25 12Z 59 56 212 1 0.00 0.00 570 580 20.2 -10.7 1012.8 68 CLR CLR 338BKN416 60 59 15.0 0.0 0.803 22.5