Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 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 00Z 67 54 281 9 0.00 0.00 561 576 11.8 -11.5 1018.7 0 CLR CLR CLR **** **** 15.0 0.0 0.747 12.4 3 09/18 03Z 60 56 281 5 0.00 0.00 561 577 12.1 -13.5 1019.5 0 CLR CLR CLR 67 60 15.0 0.0 0.783 12.4 6 09/18 06Z 59 56 266 3 0.00 0.00 562 579 11.9 -12.4 1020.3 0 CLR CLR CLR 67 59 15.0 0.0 0.775 13.0 9 09/18 09Z 57 55 226 1 0.00 0.00 563 580 12.1 -11.0 1019.9 0 CLR CLR CLR 59 57 15.0 0.0 0.757 15.3 12 09/18 12Z 57 54 317 1 0.00 0.00 563 580 12.2 -10.4 1019.7 0 CLR CLR CLR 59 57 15.0 0.0 0.725 15.1 15 09/18 15Z 59 55 335 1 0.00 0.00 564 582 12.6 -10.4 1020.6 0 CLR CLR CLR 59 56 15.0 0.0 0.824 14.9 18 09/18 18Z 68 55 295 5 0.00 0.00 566 583 13.2 -9.9 1020.3 0 CLR CLR CLR 68 56 15.0 0.0 0.784 14.9 21 09/18 21Z 71 55 290 10 0.00 0.00 568 584 14.0 -8.5 1018.4 0 CLR CLR CLR 71 68 15.0 0.0 0.771 16.4 24 09/19 00Z 67 56 276 8 0.00 0.00 570 584 14.9 -7.9 1016.8 0 CLR CLR CLR 72 66 15.2 0.0 0.809 18.9 27 09/19 03Z 59 56 247 4 0.00 0.00 571 585 15.7 -7.2 1017.0 0 CLR CLR CLR 67 59 14.4 0.0 0.766 19.2 30 09/19 06Z 58 55 213 4 0.00 0.00 571 586 16.6 -6.9 1017.0 1 FEW CLR CLR 67 58 13.4 0.0 0.718 20.8 33 09/19 09Z 58 55 212 4 0.00 0.00 571 585 17.2 -7.2 1016.5 29 008SCT015 CLR CLR 58 57 13.4 0.0 0.759 20.6 36 09/19 12Z 58 54 182 3 0.00 0.00 571 584 17.2 -7.6 1015.9 58 008SCT015 CLR 321SCT343 59 57 15.0 0.0 0.791 20.3 39 09/19 15Z 59 54 175 3 0.00 0.00 571 585 17.2 -7.8 1016.2 29 009FEW014 CLR 320SCT340 59 57 15.0 0.0 0.756 20.0 42 09/19 18Z 70 55 274 2 0.00 0.00 572 585 17.5 -7.7 1015.6 16 009FEW014 CLR 317FEW336 70 57 15.0 0.0 0.723 20.3 45 09/19 21Z 73 56 297 8 0.00 0.00 573 584 18.4 -7.4 1013.8 0 CLR CLR CLR 74 70 15.0 0.0 0.675 20.7 48 09/20 00Z 68 55 289 7 0.00 0.00 573 584 18.8 -7.4 1012.6 2 CLR CLR 349FEW384 75 66 15.0 0.0 0.618 22.3 51 09/20 03Z 59 54 246 5 0.00 0.00 572 584 19.0 -7.4 1013.7 51 CLR CLR 325SCT399 68 59 13.5 0.0 0.616 21.8 54 09/20 06Z 57 54 203 3 0.00 0.00 572 583 18.9 -7.5 1013.7 68 009FEW012 CLR 328BKN402 68 57 13.7 0.0 0.592 22.5 57 09/20 09Z 57 55 229 5 0.00 0.00 571 582 18.6 -7.8 1013.4 100 FEW CLR 332OVC402 57 57 13.4 0.0 0.654 21.5 60 09/20 12Z 58 54 226 4 0.00 0.00 570 581 18.5 -8.7 1013.2 100 008SCT015 CLR 313OVC390 58 57 15.0 0.0 0.697 21.1 63 09/20 15Z 59 54 220 3 0.00 0.00 569 581 18.2 -9.1 1013.8 100 009BKN016 CLR 253OVC376 59 58 15.0 0.0 0.738 19.5 66 09/20 18Z 64 54 250 3 0.00 0.00 569 581 18.0 -10.1 1014.2 100 009SCT017 209SCT246 251OVC372 64 58 15.0 0.0 0.762 18.9 69 09/20 21Z 66 54 278 7 0.00 0.00 568 579 17.9 -12.7 1013.4 100 CLR 205OVC245 254OVC310 68 65 15.0 0.0 0.829 18.6 72 09/21 00Z 63 54 272 7 0.00 0.00 568 579 17.9 -12.1 1013.3 94 CLR 200BKN244 251BKN298 68 63 15.0 0.0 0.695 19.2 75 09/21 03Z 58 54 262 5 0.00 0.00 567 579 18.1 -12.6 1013.7 78 011FEW017 205BKN238 273BKN306 63 58 14.6 0.0 0.656 19.5 78 09/21 06Z 58 54 243 6 0.00 0.00 567 578 18.3 -13.0 1014.2 89 008SCT019 206BKN240 255BKN305 63 57 13.6 0.0 0.723 17.5 81 09/21 09Z 58 54 234 4 0.00 0.00 566 577 18.0 -13.7 1013.6 94 000BKN022 182BKN244 261BKN304 58 58 15.0 0.0 0.764 16.0 84 09/21 12Z 58 53 231 4 0.00 0.00 566 577 17.9 -13.6 1013.3 95 000BKN022 181BKN238 260BKN299 58 58 15.0 0.0 0.751 17.6 87 09/21 15Z 58 53 167 4 0.00 0.00 566 578 17.9 -13.6 1013.8 98 012BKN020 210FEW232 250BKN317 59 57 15.0 0.0 0.784 18.3 90 09/21 18Z 66 53 211 2 0.00 0.00 567 578 18.1 -13.3 1013.5 97 012SCT020 218FEW237 247BKN298 66 57 15.0 0.0 0.752 19.1 93 09/21 21Z 73 54 289 6 0.00 0.00 568 578 18.5 -12.8 1011.7 6 CLR 224FEW245 290FEW308 73 66 15.0 0.0 0.731 18.9 96 09/22 00Z 66 54 291 9 0.00 0.00 569 579 18.8 -12.0 1011.1 2 CLR CLR 290FEW308 74 64 15.0 0.0 0.681 22.1 99 09/22 03Z 59 55 281 5 0.00 0.00 569 579 19.4 -12.2 1011.9 0 CLR CLR CLR 66 59 13.6 0.0 0.698 22.0 102 09/22 06Z 57 54 215 3 0.00 0.00 570 580 20.0 -12.0 1012.3 1 FEW CLR CLR 66 57 13.5 0.0 0.728 22.3 105 09/22 09Z 56 53 222 3 0.00 0.00 570 580 20.8 -12.0 1011.8 0 CLR CLR CLR 57 56 14.9 0.0 0.751 22.0 108 09/22 12Z 56 53 165 3 0.00 0.00 570 580 20.5 -10.8 1011.6 0 CLR CLR CLR 57 56 14.7 0.0 0.720 21.8 111 09/22 15Z 58 53 169 2 0.00 0.00 571 581 20.8 -9.6 1012.2 1 CLR CLR 352FEW363 58 56 14.7 0.0 0.738 21.8 114 09/22 18Z 69 54 263 2 0.00 0.00 572 582 20.6 -9.1 1012.4 0 CLR CLR CLR 69 56 15.0 0.0 0.762 22.0 117 09/22 21Z 74 55 296 8 0.00 0.00 573 582 20.9 -8.6 1010.9 0 CLR CLR CLR 75 69 15.0 0.0 0.750 23.0 120 09/23 00Z 69 55 293 9 0.00 0.00 574 583 22.0 -8.2 1009.6 0 CLR CLR CLR 76 67 15.0 0.0 0.668 24.2 123 09/23 03Z 60 55 267 3 0.00 0.00 575 584 22.2 -7.9 1010.4 0 CLR CLR CLR 69 60 14.7 0.0 0.674 24.0 126 09/23 06Z 58 54 252 2 0.00 0.00 575 584 22.7 -7.6 1010.9 2 CLR CLR 370FEW389 69 58 15.0 0.0 0.689 25.0 129 09/23 09Z 58 54 255 1 0.00 0.00 575 584 22.7 -7.8 1010.6 86 CLR CLR 331BKN388 59 58 15.0 0.0 0.694 25.4 132 09/23 12Z 57 53 186 1 0.00 0.00 575 584 22.5 -8.0 1010.4 73 CLR CLR 330BKN383 59 57 15.0 0.0 0.669 25.4 135 09/23 15Z 60 53 275 1 0.00 0.00 574 584 22.0 -8.1 1011.7 36 CLR CLR 331SCT356 60 57 15.0 0.0 0.655 24.8 138 09/23 18Z 74 54 291 4 0.00 0.00 575 585 21.9 -8.2 1011.8 18 CLR CLR 332FEW356 74 57 15.0 0.0 0.659 24.7 141 09/23 21Z 78 55 293 7 0.00 0.00 575 584 22.0 -8.2 1010.5 59 CLR CLR 374BKN422 79 73 15.0 0.0 0.684 25.9 144 09/24 00Z 70 53 297 8 0.00 0.00 575 584 22.4 -8.2 1009.9 49 CLR CLR 363SCT412 79 69 15.0 0.0 0.639 26.5 147 09/24 03Z 60 53 274 4 0.00 0.00 575 584 22.6 -8.6 1010.5 100 CLR CLR 318OVC387 70 60 15.0 0.0 0.613 26.2 150 09/24 06Z 59 52 227 3 0.00 0.00 574 583 22.5 -8.6 1011.3 72 CLR CLR 314BKN379 70 59 15.0 0.0 0.662 25.3 153 09/24 09Z 59 53 227 2 0.00 0.00 573 582 22.4 -8.8 1010.8 68 CLR CLR 305BKN345 59 59 15.0 0.0 0.706 25.7 156 09/24 12Z 58 53 237 2 0.00 0.00 572 581 22.1 -9.3 1010.9 80 CLR CLR 295BKN342 59 58 15.0 0.0 0.680 25.2 159 09/24 15Z 60 53 181 2 0.00 0.00 571 581 21.5 -9.6 1011.6 43 CLR CLR 331SCT396 60 57 15.0 0.0 0.697 24.6 162 09/24 18Z 71 52 285 4 0.00 0.00 571 582 21.0 -9.7 1012.1 71 CLR CLR 319BKN415 71 57 15.0 0.0 0.713 23.6 165 09/24 21Z 73 52 290 7 0.00 0.00 571 581 20.6 -9.6 1011.6 100 CLR CLR 280OVC418 74 71 15.0 0.0 0.716 23.1 168 09/25 00Z 67 51 286 7 0.00 0.00 571 581 20.1 -9.6 1011.6 100 CLR CLR 276OVC412 74 66 15.0 0.0 0.730 22.7