Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 21SEP 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 09/21 00Z 62 53 264 4 0.00 0.00 567 578 17.1 -14.3 1013.0 100 CLR 000OVC000 000BKN000 **** **** 15.1 0.0 0.656 19.7 3 09/21 03Z 57 54 260 5 0.00 0.00 566 578 17.6 -14.5 1013.6 100 010FEW017 186BKN245 246BKN312 62 57 13.6 0.0 0.649 17.4 6 09/21 06Z 58 53 223 4 0.00 0.00 565 577 17.9 -14.0 1014.4 100 006SCT020 182BKN241 245BKN308 62 57 15.1 0.0 0.738 15.1 9 09/21 09Z 57 53 246 4 0.00 0.00 565 577 18.2 -14.5 1013.7 86 010BKN020 190BKN244 244BKN275 58 57 15.0 0.0 0.642 14.5 12 09/21 12Z 57 52 240 4 0.00 0.00 565 576 18.5 -14.1 1013.4 89 006BKN021 189SCT239 244SCT275 58 56 15.0 0.0 0.675 13.9 15 09/21 15Z 59 52 228 4 0.00 0.00 565 576 18.2 -14.3 1014.1 90 004BKN023 163FEW172 CLR 58 57 15.0 0.0 0.694 14.1 18 09/21 18Z 65 52 234 4 0.00 0.00 565 577 18.0 -14.7 1014.0 72 008BKN023 169FEW178 274FEW291 65 57 15.0 0.0 0.647 13.0 21 09/21 21Z 68 54 268 9 0.00 0.00 566 577 18.1 -14.6 1012.6 0 CLR CLR CLR 68 65 15.0 0.0 0.660 15.1 24 09/22 00Z 63 54 269 8 0.00 0.00 566 577 18.6 -14.0 1012.4 0 CLR CLR CLR 68 62 15.0 0.0 0.725 16.3 27 09/22 03Z 57 53 259 3 0.00 0.00 567 578 18.4 -13.0 1012.9 15 014FEW019 CLR 318FEW346 63 57 13.6 0.0 0.754 19.0 30 09/22 06Z 56 53 250 3 0.00 0.00 567 578 19.5 -12.4 1013.4 43 012FEW017 CLR 302SCT348 63 56 13.5 0.0 0.739 18.1 33 09/22 09Z 57 53 177 4 0.00 0.00 568 578 19.6 -12.7 1012.3 63 010SCT017 CLR 295SCT345 57 55 14.5 0.0 0.734 18.2 36 09/22 12Z 54 52 164 5 0.00 0.00 568 578 19.1 -11.6 1012.2 47 010SCT017 CLR 293FEW342 57 54 15.0 0.0 0.702 18.7 39 09/22 15Z 57 52 172 3 0.00 0.00 568 579 20.0 -10.7 1013.0 0 CLR CLR 307FEW318 57 54 15.0 0.0 0.709 17.1 42 09/22 18Z 66 53 248 2 0.00 0.00 569 580 19.1 -9.5 1013.0 0 CLR CLR CLR 66 54 15.0 0.0 0.713 18.1 45 09/22 21Z 72 54 291 7 0.00 0.00 570 580 19.7 -9.6 1011.2 0 CLR CLR CLR 72 66 15.0 0.0 0.688 18.8 48 09/23 00Z 66 54 286 8 0.00 0.00 571 580 19.9 -9.7 1010.6 0 CLR CLR CLR 73 64 15.2 0.0 0.662 20.5 51 09/23 03Z 58 54 228 4 0.00 0.00 572 581 20.5 -10.0 1010.9 0 CLR CLR CLR 66 58 13.4 0.0 0.621 21.7 54 09/23 06Z 57 54 191 4 0.00 0.00 572 581 20.4 -9.7 1011.3 3 FEW CLR CLR 66 57 13.3 0.0 0.564 22.0 57 09/23 09Z 56 53 182 4 0.00 0.00 572 581 20.7 -9.3 1010.8 2 FEW CLR CLR 57 56 15.0 0.0 0.521 22.7 60 09/23 12Z 56 52 162 2 0.00 0.00 572 581 20.6 -8.6 1010.7 1 FEW CLR CLR 57 56 15.0 0.0 0.514 22.2 63 09/23 15Z 59 52 92 1 0.00 0.00 572 582 19.8 -8.5 1011.8 0 CLR CLR CLR 59 55 15.0 0.0 0.509 21.5 66 09/23 18Z 72 53 307 3 0.00 0.00 573 583 20.0 -7.7 1011.9 1 CLR CLR 374FEW398 72 55 15.0 0.0 0.526 21.5 69 09/23 21Z 75 54 290 8 0.00 0.00 574 583 20.1 -7.8 1010.5 11 FEW CLR 368FEW394 77 72 15.0 0.0 0.538 23.0 72 09/24 00Z 71 54 291 8 0.00 0.00 574 583 21.0 -8.2 1009.5 18 FEW CLR 360FEW391 79 70 15.0 0.0 0.530 24.6 75 09/24 03Z 62 52 265 4 0.00 0.00 574 583 21.1 -8.8 1010.1 46 CLR CLR 326SCT409 71 62 15.0 0.0 0.573 24.2 78 09/24 06Z 59 53 231 3 0.00 0.00 573 583 21.3 -8.9 1011.1 73 CLR CLR 330BKN417 71 59 15.0 0.0 0.564 23.2 81 09/24 09Z 59 52 174 3 0.00 0.00 573 582 20.8 -9.4 1010.9 99 CLR CLR 320OVC393 59 58 15.0 0.0 0.581 23.7 84 09/24 12Z 57 51 225 2 0.00 0.00 572 581 20.8 -10.2 1011.0 61 CLR CLR 321BKN386 59 57 15.0 0.0 0.581 23.0 87 09/24 15Z 59 52 170 2 0.00 0.00 571 581 20.1 -10.4 1012.1 9 CLR CLR 368FEW390 59 56 15.0 0.0 0.633 22.3 90 09/24 18Z 69 52 278 4 0.00 0.00 571 582 19.8 -10.7 1012.8 8 CLR CLR 385FEW404 70 56 15.0 0.0 0.682 21.7 93 09/24 21Z 71 52 279 8 0.00 0.00 571 581 19.7 -10.3 1012.5 19 CLR CLR 367FEW418 73 70 15.0 0.0 0.672 21.0 96 09/25 00Z 67 51 268 8 0.00 0.00 570 581 18.6 -10.1 1012.7 42 CLR CLR 326SCT388 73 66 15.0 0.0 0.747 20.4 99 09/25 03Z 59 53 253 6 0.00 0.00 570 581 18.2 -10.1 1013.7 8 CLR CLR 320FEW340 67 59 15.0 0.0 0.767 19.9 102 09/25 06Z 59 54 230 4 0.00 0.00 570 582 17.3 -10.0 1014.1 5 CLR CLR 320FEW339 67 59 15.0 0.0 0.854 18.9 105 09/25 09Z 59 57 215 4 0.00 0.00 569 581 17.1 -9.9 1014.1 44 CLR CLR 349SCT381 59 59 15.0 0.0 0.982 17.9 108 09/25 12Z 58 57 226 3 0.00 0.00 569 581 16.6 -9.4 1014.2 41 007FEW013 CLR 347SCT382 60 58 15.1 0.0 0.894 18.4 111 09/25 15Z 59 56 223 4 0.00 0.00 569 581 16.7 -8.6 1015.0 83 005BKN015 CLR 395FEW420 60 58 15.0 0.0 0.813 19.2 114 09/25 18Z 66 55 255 4 0.00 0.00 570 582 16.9 -7.9 1015.2 87 005BKN015 CLR 354SCT417 66 58 15.0 0.0 0.825 19.0 117 09/25 21Z 71 53 275 6 0.00 0.00 571 583 17.4 -7.8 1013.7 100 CLR CLR 311OVC376 71 66 15.2 0.0 0.773 19.7 120 09/26 00Z 66 53 287 7 0.00 0.00 572 582 18.1 -7.8 1012.3 67 CLR CLR 305BKN368 71 65 15.0 0.0 0.765 20.6 123 09/26 03Z 58 53 261 3 0.00 0.00 572 583 18.3 -7.7 1012.7 0 CLR CLR CLR 66 58 14.4 0.0 0.749 20.7 126 09/26 06Z 57 53 242 2 0.00 0.00 572 583 18.6 -7.7 1012.5 0 CLR CLR CLR 66 57 15.0 0.0 0.691 20.6 129 09/26 09Z 56 52 295 1 0.00 0.00 572 582 18.7 -7.7 1011.5 0 CLR CLR CLR 57 56 15.0 0.0 0.673 21.3 132 09/26 12Z 56 51 265 2 0.00 0.00 571 581 18.6 -8.0 1011.2 0 CLR CLR CLR 57 56 15.0 0.0 0.687 21.1 135 09/26 15Z 58 51 233 1 0.00 0.00 571 580 18.4 -8.8 1011.3 61 CLR CLR 363BKN404 58 55 15.0 0.0 0.762 20.3 138 09/26 18Z 69 51 270 3 0.00 0.00 571 581 18.3 -9.0 1011.4 70 CLR CLR 326BKN399 69 55 15.0 0.0 0.818 19.6 141 09/26 21Z 72 51 291 8 0.00 0.00 572 581 18.3 -9.3 1010.2 100 CLR 230FEW247 253OVC412 73 68 15.0 0.0 0.830 20.2 144 09/27 00Z 66 51 292 8 0.00 0.00 572 580 18.5 -9.2 1009.5 88 CLR 230FEW246 268BKN378 73 65 15.0 0.0 0.748 21.6 147 09/27 03Z 58 52 284 4 0.00 0.00 571 579 18.7 -9.5 1010.6 80 CLR 237FEW246 280BKN347 66 58 15.1 0.0 0.562 20.4 150 09/27 06Z 56 52 265 3 0.00 0.00 570 579 18.7 -9.9 1011.3 90 CLR CLR 286BKN348 66 56 15.1 0.0 0.492 18.5 153 09/27 09Z 55 51 248 2 0.00 0.00 569 578 18.3 -10.3 1011.2 64 CLR CLR 299BKN344 56 55 15.1 0.0 0.505 18.1 156 09/27 12Z 54 51 222 2 0.00 0.00 568 577 17.9 -10.5 1011.4 35 CLR CLR 299SCT340 56 54 15.1 0.0 0.554 17.4 159 09/27 15Z 56 51 172 2 0.00 0.00 567 578 17.4 -10.6 1012.4 9 CLR 236FEW246 267FEW290 56 54 15.0 0.0 0.560 17.3 162 09/27 18Z 66 50 241 2 0.00 0.00 568 579 17.1 -10.4 1013.1 9 CLR 230FEW243 291FEW314 66 54 15.0 0.0 0.543 17.7 165 09/27 21Z 71 50 286 7 0.00 0.00 569 579 17.2 -10.0 1011.9 35 CLR CLR 317SCT344 71 66 15.0 0.0 0.530 18.6 168 09/28 00Z 65 50 289 8 0.00 0.00 569 579 17.7 -10.0 1011.5 43 CLR CLR 315SCT345 72 64 15.0 0.0 0.483 20.3