Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 20SEP 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 09/20 00Z 64 54 283 8 0.00 0.00 573 584 18.1 -7.5 1014.0 7 000FEW000 CLR 000FEW000 **** **** 13.2 0.0 0.593 22.2 3 09/20 03Z 57 54 249 6 0.00 0.00 571 584 18.0 -7.8 1015.1 27 CLR CLR 331FEW394 64 57 13.5 0.0 0.585 22.0 6 09/20 06Z 57 54 195 5 0.00 0.00 572 584 18.3 -7.2 1014.5 63 009FEW014 CLR 325BKN410 64 57 13.7 0.0 0.546 22.7 9 09/20 09Z 57 54 194 5 0.00 0.00 571 583 18.4 -7.9 1013.9 100 009FEW014 CLR 297OVC387 58 57 15.0 0.0 0.535 22.5 12 09/20 12Z 57 54 215 3 0.00 0.00 570 582 18.2 -8.9 1013.8 100 009SCT015 CLR 286OVC374 58 57 15.0 0.0 0.533 21.2 15 09/20 15Z 58 54 213 2 0.00 0.00 569 581 17.8 -9.3 1014.5 100 009BKN015 FEW 262OVC360 58 57 15.0 0.0 0.599 19.5 18 09/20 18Z 65 53 223 4 0.00 0.00 569 581 17.5 -11.1 1014.8 100 009SCT015 219BKN246 260OVC357 65 57 15.0 0.0 0.676 18.1 21 09/20 21Z 70 54 282 5 0.00 0.00 569 580 17.7 -12.1 1013.2 91 CLR 193BKN243 264BKN357 71 65 15.0 0.0 0.638 19.4 24 09/21 00Z 64 54 273 6 0.00 0.00 567 578 17.8 -11.8 1012.9 96 CLR 191BKN244 259BKN350 71 63 15.0 0.0 0.620 19.4 27 09/21 03Z 59 54 270 5 0.00 0.00 567 578 18.3 -14.6 1013.3 99 CLR 204BKN245 255BKN331 64 59 13.6 0.0 0.701 20.2 30 09/21 06Z 57 54 240 4 0.00 0.00 566 578 18.5 -12.7 1014.0 85 009FEW016 201BKN239 252BKN331 64 57 14.5 0.0 0.711 17.7 33 09/21 09Z 58 53 243 5 0.00 0.00 565 577 18.3 -13.7 1013.5 88 007BKN018 157FEW182 CLR 58 57 15.0 0.0 0.805 16.5 36 09/21 12Z 58 53 217 4 0.00 0.00 565 576 18.0 -14.0 1013.4 89 005BKN020 146FEW166 CLR 59 57 15.0 0.0 0.780 16.6 39 09/21 15Z 59 53 215 3 0.00 0.00 565 577 18.2 -14.0 1013.8 66 010BKN021 CLR 284FEW303 59 58 15.0 0.0 0.773 17.0 42 09/21 18Z 66 53 251 3 0.00 0.00 566 577 18.2 -13.6 1013.5 41 011SCT021 CLR 284FEW305 66 57 15.0 0.0 0.733 17.2 45 09/21 21Z 70 54 277 7 0.00 0.00 567 577 17.9 -13.4 1012.4 0 CLR CLR CLR 71 66 15.0 0.0 0.718 17.6 48 09/22 00Z 64 54 281 8 0.00 0.00 567 577 18.6 -12.9 1012.2 0 CLR CLR 305FEW317 71 63 15.0 0.0 0.704 20.2 51 09/22 03Z 58 54 266 4 0.00 0.00 567 578 18.5 -12.6 1012.8 64 CLR CLR 284BKN345 64 58 13.5 0.0 0.689 20.3 54 09/22 06Z 57 54 237 3 0.00 0.00 568 579 19.3 -12.5 1013.1 54 011FEW013 CLR 281BKN340 64 57 13.8 0.0 0.720 19.6 57 09/22 09Z 56 53 171 4 0.00 0.00 568 578 19.4 -12.6 1012.3 2 CLR CLR 300FEW319 57 56 15.0 0.0 0.755 19.8 60 09/22 12Z 56 53 162 6 0.00 0.00 568 578 19.0 -11.7 1012.0 1 CLR CLR 298FEW317 57 55 15.0 0.0 0.780 20.0 63 09/22 15Z 57 53 157 4 0.00 0.00 568 579 19.5 -11.6 1012.8 0 CLR CLR CLR 57 55 15.0 0.0 0.759 20.1 66 09/22 18Z 66 54 234 2 0.00 0.00 569 580 19.4 -10.1 1013.2 0 CLR CLR CLR 67 55 15.0 0.0 0.779 18.8 69 09/22 21Z 73 55 294 6 0.00 0.00 571 581 19.9 -9.5 1011.5 0 CLR CLR CLR 73 66 15.0 0.0 0.757 20.2 72 09/23 00Z 67 55 285 8 0.00 0.00 572 581 20.4 -9.6 1010.7 7 CLR CLR 363FEW398 74 65 15.0 0.0 0.720 21.9 75 09/23 03Z 59 55 247 4 0.00 0.00 572 582 20.7 -10.0 1011.4 3 CLR CLR 375FEW386 67 59 13.5 0.0 0.722 21.9 78 09/23 06Z 58 54 205 3 0.00 0.00 572 582 21.0 -9.9 1011.8 3 FEW CLR 375FEW387 67 58 15.0 0.0 0.670 22.8 81 09/23 09Z 57 54 192 3 0.00 0.00 572 582 21.2 -8.8 1011.6 0 CLR CLR CLR 58 57 15.0 0.0 0.636 23.0 84 09/23 12Z 57 53 170 2 0.00 0.00 572 582 21.1 -7.6 1011.4 17 CLR CLR 352FEW389 58 57 15.0 0.0 0.590 22.7 87 09/23 15Z 59 52 134 1 0.00 0.00 573 583 20.4 -7.4 1012.5 100 CLR CLR 323OVC408 59 56 15.0 0.0 0.575 22.4 90 09/23 18Z 70 53 300 3 0.00 0.00 573 584 20.4 -7.3 1012.7 100 CLR CLR 320OVC406 71 56 15.0 0.0 0.580 21.9 93 09/23 21Z 74 54 293 8 0.00 0.00 574 584 20.4 -7.3 1011.4 97 CLR CLR 307BKN416 76 70 15.0 0.0 0.570 23.0 96 09/24 00Z 68 53 293 7 0.00 0.00 574 583 20.6 -8.0 1010.8 97 CLR CLR 308BKN417 76 67 15.0 0.0 0.548 23.8 99 09/24 03Z 60 53 249 3 0.00 0.00 574 584 20.7 -8.5 1011.2 92 CLR CLR 319BKN392 68 60 15.0 0.0 0.574 23.3 102 09/24 06Z 59 53 214 3 0.00 0.00 573 583 20.9 -9.1 1011.9 67 CLR CLR 316BKN382 68 59 15.0 0.0 0.625 23.0 105 09/24 09Z 58 52 188 3 0.00 0.00 573 583 20.6 -9.5 1011.8 19 CLR CLR 347FEW388 59 58 15.0 0.0 0.627 22.3 108 09/24 12Z 58 52 177 3 0.00 0.00 572 582 20.1 -9.7 1011.9 60 CLR CLR 301BKN388 59 58 15.0 0.0 0.622 21.8 111 09/24 15Z 59 52 215 2 0.00 0.00 571 582 19.7 -10.2 1013.0 100 CLR CLR 332OVC418 59 57 15.0 0.0 0.655 21.2 114 09/24 18Z 68 52 253 3 0.00 0.00 571 583 19.6 -10.1 1013.5 100 CLR CLR 347OVC428 68 57 15.0 0.0 0.637 21.0 117 09/24 21Z 71 51 277 7 0.00 0.00 571 582 19.1 -9.9 1012.8 100 CLR CLR 353OVC434 73 68 15.0 0.0 0.635 20.9 120 09/25 00Z 66 51 256 7 0.00 0.00 570 581 18.2 -9.8 1012.9 100 CLR CLR 359OVC434 73 65 15.0 0.0 0.863 20.3 123 09/25 03Z 60 53 245 6 0.00 0.00 570 581 17.1 -9.8 1013.7 100 CLR CLR 365OVC437 66 60 15.0 0.0 0.927 19.2 126 09/25 06Z 60 54 209 4 0.00 0.00 568 580 16.1 -10.4 1014.1 68 CLR CLR 368BKN436 66 60 15.0 0.0 0.990 18.4 129 09/25 09Z 59 56 242 5 0.00 0.00 567 579 14.1 -10.7 1014.4 25 CLR CLR 339SCT399 60 59 15.1 0.0 1.066 16.0 132 09/25 12Z 58 56 248 5 0.00 0.00 565 577 13.3 -10.5 1014.8 59 008FEW013 CLR 328BKN391 60 58 14.5 0.0 1.097 14.6 135 09/25 15Z 59 56 256 5 0.00 0.00 564 577 13.6 -10.5 1015.5 45 006SCT013 CLR 355FEW382 60 58 15.0 0.0 0.926 13.2 138 09/25 18Z 65 52 270 7 0.00 0.00 564 578 13.0 -9.0 1016.0 33 006FEW013 CLR 361FEW384 65 58 15.0 0.0 0.701 13.2 141 09/25 21Z 67 52 279 10 0.00 0.00 565 578 13.0 -8.2 1015.0 8 CLR CLR 342FEW372 67 65 15.0 0.0 0.518 13.5 144 09/26 00Z 64 54 273 8 0.00 0.00 565 577 13.7 -7.8 1013.9 40 CLR CLR 293SCT345 67 64 15.0 0.0 0.518 14.1 147 09/26 03Z 57 53 257 6 0.00 0.00 566 578 14.0 -7.4 1013.9 34 CLR CLR 372SCT422 64 57 15.0 0.0 0.473 15.3 150 09/26 06Z 56 52 195 4 0.00 0.00 566 578 14.9 -7.2 1013.5 28 CLR CLR 355SCT416 64 56 13.5 0.0 0.453 15.8 153 09/26 09Z 55 52 177 6 0.00 0.00 566 577 14.5 -8.0 1012.6 99 FEW CLR 329OVC410 56 55 15.0 0.0 0.456 15.7 156 09/26 12Z 54 51 162 4 0.00 0.00 566 576 14.0 -8.5 1012.2 98 CLR CLR 321BKN402 56 54 15.0 0.0 0.461 15.6 159 09/26 15Z 56 51 141 3 0.00 0.00 565 576 13.4 -9.0 1012.7 53 CLR CLR 308BKN386 56 54 15.0 0.0 0.474 14.5 162 09/26 18Z 66 49 223 2 0.00 0.00 565 576 13.3 -9.6 1013.0 32 CLR CLR 315SCT383 66 53 15.0 0.0 0.454 13.7 165 09/26 21Z 69 49 285 9 0.00 0.00 566 576 13.4 -9.3 1011.7 5 CLR CLR 379FEW395 71 65 15.0 0.0 0.476 15.4 168 09/27 00Z 65 50 285 7 0.00 0.00 566 576 13.8 -9.3 1011.0 2 CLR CLR 379FEW395 71 63 15.0 0.0 0.535 16.5