Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 26SEP 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 09/26 12Z 54 52 192 4 0.00 0.00 567 578 15.0 -9.6 1013.8 95 000SCT000 000BKN000 000BKN000 **** **** 15.0 0.0 0.452 15.2 3 09/26 15Z 56 52 196 3 0.00 0.00 567 579 14.8 -10.1 1014.3 82 008SCT014 CLR 266BKN336 56 54 15.0 0.0 0.454 14.7 6 09/26 18Z 63 50 235 3 0.00 0.00 567 579 14.9 -10.1 1014.3 85 008SCT014 CLR 265BKN333 63 54 15.0 0.0 0.459 14.5 9 09/26 21Z 68 49 280 7 0.00 0.00 568 578 15.3 -10.3 1012.5 69 CLR CLR 256BKN328 69 63 15.0 0.0 0.491 14.5 12 09/27 00Z 64 51 289 8 0.00 0.00 567 577 15.7 -10.3 1011.5 78 CLR 226FEW245 264BKN330 69 63 15.0 0.0 0.528 17.4 15 09/27 03Z 57 52 272 5 0.00 0.00 566 577 15.4 -11.2 1012.5 21 CLR CLR 298FEW348 64 57 13.5 0.0 0.500 16.8 18 09/27 06Z 55 52 236 3 0.00 0.00 566 577 15.7 -11.2 1013.1 43 FEW CLR 281SCT346 64 55 13.4 0.0 0.536 15.3 21 09/27 09Z 55 52 205 4 0.00 0.00 565 575 14.6 -11.9 1012.1 100 FEW CLR 245OVC338 56 55 13.5 0.0 0.586 15.0 24 09/27 12Z 55 52 223 5 0.00 0.00 563 573 13.5 -12.3 1012.0 100 012FEW017 192SCT243 244OVC332 56 55 15.1 0.0 0.785 12.6 27 09/27 15Z 57 52 196 5 0.00 0.00 561 572 13.6 -13.3 1012.5 100 012BKN021 138OVC243 243OVC322 57 55 15.1 0.0 0.854 11.7 30 09/27 18Z 63 51 218 5 0.00 0.00 560 571 13.2 -14.6 1013.5 86 013SCT021 136BKN240 248BKN318 63 56 15.0 0.0 0.657 11.4 33 09/27 21Z 64 51 253 11 0.00 0.00 559 569 13.3 -15.1 1012.5 0 CLR CLR CLR 65 63 15.0 0.0 0.605 13.0 36 09/28 00Z 61 52 267 11 0.00 0.00 557 567 12.6 -15.8 1012.0 1 114FEW120 121FEW127 CLR 65 61 15.0 0.0 0.715 13.9 39 09/28 03Z 56 51 252 8 0.00 0.00 556 567 12.6 -17.5 1012.7 2 109FEW119 CLR CLR 61 56 15.0 0.0 0.577 13.8 42 09/28 06Z 55 51 252 9 0.00 0.00 556 567 12.8 -17.2 1012.9 1 109FEW119 CLR CLR 61 55 15.0 0.0 0.595 13.1 45 09/28 09Z 55 52 229 7 0.00 0.00 555 566 12.7 -17.7 1012.7 33 012SCT019 CLR CLR 55 54 15.0 0.0 0.636 11.2 48 09/28 12Z 56 50 189 5 0.00 0.00 555 566 13.0 -16.7 1012.4 57 012BKN020 CLR CLR 57 54 15.0 0.0 0.632 12.1 51 09/28 15Z 56 50 152 5 0.00 0.00 557 568 12.7 -15.9 1013.3 38 014SCT019 CLR CLR 56 54 15.0 0.0 0.711 14.4 54 09/28 18Z 66 49 338 1 0.00 0.00 559 571 12.9 -11.1 1013.7 19 014FEW020 CLR CLR 66 54 15.0 0.0 0.635 13.7 57 09/28 21Z 69 49 297 8 0.00 0.00 564 574 13.4 -9.9 1012.5 0 CLR CLR CLR 70 65 15.0 0.0 0.576 15.9 60 09/29 00Z 65 50 280 8 0.00 0.00 566 576 15.1 -9.4 1011.0 0 CLR CLR CLR 71 62 15.0 0.0 0.571 19.0 63 09/29 03Z 58 51 228 4 0.00 0.00 568 578 16.8 -8.2 1011.5 2 CLR CLR 295FEW330 65 58 13.6 0.0 0.565 20.5 66 09/29 06Z 56 51 178 5 0.00 0.00 570 580 17.3 -7.6 1011.7 2 FEW CLR CLR 65 56 15.0 0.0 0.608 21.9 69 09/29 09Z 55 51 182 3 0.00 0.00 572 580 18.4 -6.0 1010.5 0 CLR CLR CLR 56 55 15.0 0.0 0.620 23.4 72 09/29 12Z 55 50 134 1 0.00 0.00 572 581 18.1 -5.5 1010.2 0 CLR CLR CLR 56 55 15.0 0.0 0.630 23.0 75 09/29 15Z 58 50 300 1 0.00 0.00 573 582 18.5 -5.6 1011.0 3 CLR CLR 349FEW360 58 55 15.0 0.0 0.634 21.7 78 09/29 18Z 71 51 281 2 0.00 0.00 574 584 18.8 -5.6 1011.0 2 CLR CLR 346FEW357 72 55 15.0 0.0 0.616 21.0 81 09/29 21Z 75 51 290 7 0.00 0.00 576 584 18.8 -5.9 1009.3 1 CLR CLR 322FEW333 75 71 15.0 0.0 0.636 21.9 84 09/30 00Z 71 50 287 7 0.00 0.00 577 583 19.3 -5.9 1007.7 1 CLR CLR CLR 76 68 15.0 0.0 0.690 23.8 87 09/30 03Z 61 51 231 4 0.00 0.00 577 584 21.1 -5.8 1008.1 0 CLR CLR CLR 70 60 15.0 0.0 0.726 24.4 90 09/30 06Z 59 52 197 4 0.00 0.00 577 584 21.1 -5.7 1008.6 0 CLR CLR CLR 70 59 15.0 0.0 0.706 24.6 93 09/30 09Z 58 52 181 3 0.00 0.00 577 584 21.2 -5.4 1008.5 0 CLR CLR CLR 59 58 15.0 0.0 0.691 25.5 96 09/30 12Z 58 51 135 2 0.00 0.00 577 585 20.9 -4.9 1008.7 0 CLR CLR CLR 59 58 15.0 0.0 0.646 24.6 99 09/30 15Z 62 48 132 2 0.00 0.00 577 585 20.5 -5.2 1009.6 0 CLR CLR CLR 62 58 15.0 0.0 0.582 24.2 102 09/30 18Z 75 49 291 3 0.00 0.00 578 586 20.7 -5.3 1010.1 0 CLR CLR CLR 75 58 15.0 0.0 0.553 23.9 105 09/30 21Z 76 51 300 8 0.00 0.00 578 586 20.8 -5.1 1009.1 0 CLR CLR CLR 78 75 15.0 0.0 0.530 24.9 108 10/01 00Z 72 52 291 8 0.00 0.00 579 586 21.3 -5.1 1008.1 0 CLR CLR CLR 78 72 15.0 0.0 0.511 25.8 111 10/01 03Z 62 51 274 4 0.00 0.00 578 586 21.4 -5.2 1009.2 0 CLR CLR CLR 72 62 15.1 0.0 0.492 25.0 114 10/01 06Z 60 53 234 3 0.00 0.00 578 586 21.7 -5.6 1009.9 0 CLR CLR CLR 72 60 15.1 0.0 0.515 24.7 117 10/01 09Z 59 53 229 3 0.00 0.00 577 585 21.3 -5.6 1009.6 0 CLR CLR CLR 60 59 15.1 0.0 0.540 24.5 120 10/01 12Z 58 54 213 2 0.00 0.00 576 584 20.9 -6.4 1009.7 0 CLR CLR CLR 60 58 15.1 0.0 0.528 24.0 123 10/01 15Z 59 54 239 2 0.00 0.00 575 584 20.5 -7.0 1011.0 34 CLR CLR 269SCT300 59 57 14.9 0.0 0.528 23.0 126 10/01 18Z 68 54 278 5 0.00 0.00 575 585 20.2 -7.5 1011.6 57 CLR CLR 259BKN297 68 57 15.0 0.0 0.536 22.2 129 10/01 21Z 70 53 281 8 0.00 0.00 575 584 20.3 -7.3 1011.2 25 CLR 238FEW248 249FEW287 71 68 15.2 0.0 0.517 22.0 132 10/02 00Z 65 55 254 6 0.00 0.00 574 583 20.8 -7.2 1010.6 15 CLR 238FEW248 250FEW284 71 65 15.0 0.0 0.564 22.0 135 10/02 03Z 59 55 185 7 0.00 0.00 574 584 20.9 -7.9 1011.1 19 CLR CLR 301FEW316 65 59 13.5 0.0 0.535 22.3 138 10/02 06Z 58 54 181 5 0.00 0.00 574 584 21.1 -7.8 1011.2 57 FEW 238FEW248 272BKN339 65 58 15.0 0.0 0.550 22.8 141 10/02 09Z 57 54 179 5 0.00 0.00 574 583 20.9 -8.3 1010.8 100 CLR 211FEW248 262OVC349 58 57 15.0 0.0 0.577 21.8 144 10/02 12Z 56 54 185 4 0.00 0.00 574 583 20.3 -8.7 1010.5 99 CLR 201SCT248 262OVC343 58 56 14.9 0.0 0.594 21.5 147 10/02 15Z 58 54 180 3 0.00 0.00 573 583 20.0 -8.8 1011.2 100 CLR 220BKN248 253BKN311 58 56 14.9 0.0 0.688 20.9 150 10/02 18Z 67 53 241 3 0.00 0.00 574 583 19.9 -9.2 1011.4 100 CLR 211BKN248 253BKN319 67 56 15.0 0.0 0.697 20.6 153 10/02 21Z 71 53 284 5 0.00 0.00 574 583 19.6 -9.4 1010.6 100 CLR 199BKN248 248BKN335 71 67 15.1 0.0 0.648 21.5 156 10/03 00Z 66 52 297 7 0.00 0.00 575 583 20.4 -8.6 1009.5 100 CLR 204BKN248 254OVC326 71 65 15.1 0.0 0.508 23.0 159 10/03 03Z 59 51 274 2 0.00 0.00 576 584 20.3 -8.6 1010.2 95 CLR 238FEW248 286BKN313 66 59 15.0 0.0 0.414 23.0 162 10/03 06Z 57 52 341 2 0.00 0.00 576 585 20.9 -7.6 1010.6 57 CLR CLR 291BKN317 66 57 15.0 0.0 0.429 23.8 165 10/03 09Z 57 49 49 1 0.00 0.00 577 586 20.4 -6.6 1010.2 0 CLR CLR CLR 58 57 15.0 0.0 0.396 24.1 168 10/03 12Z 59 45 80 1 0.00 0.00 577 586 21.4 -6.1 1010.1 0 CLR CLR CLR 59 57 15.0 0.0 0.379 24.0