Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 13AUG 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 08/13 00Z 67 56 296 8 0.00 0.00 575 583 21.5 -9.5 1009.3 100 CLR 000OVC000 000BKN000 **** **** 15.2 0.0 0.898 19.2 3 08/13 03Z 60 55 296 7 0.00 0.00 574 582 20.4 -9.3 1009.7 96 CLR 230FEW247 251BKN342 67 60 14.7 0.0 0.908 17.8 6 08/13 06Z 57 54 262 3 0.00 0.00 572 582 20.4 -9.5 1010.9 59 CLR 229FEW247 252BKN340 67 57 13.8 0.0 0.929 15.6 9 08/13 09Z 58 54 232 3 0.00 0.00 571 580 20.3 -10.2 1010.3 78 010BKN020 CLR 285BKN319 58 56 15.0 0.0 0.902 13.4 12 08/13 12Z 58 53 178 4 0.00 0.00 571 580 19.3 -10.4 1010.6 81 011BKN021 CLR 278SCT318 59 56 15.0 0.0 0.891 12.4 15 08/13 15Z 59 53 167 6 0.00 0.00 570 580 18.3 -10.2 1011.7 81 014BKN022 237FEW247 263SCT318 59 58 15.0 0.0 0.863 12.5 18 08/13 18Z 65 54 248 7 0.00 0.00 569 580 17.5 -10.2 1012.3 59 015SCT022 CLR 260SCT322 65 58 15.0 0.0 0.880 11.9 21 08/13 21Z 67 54 244 14 0.00 0.00 570 580 17.4 -10.0 1011.8 36 CLR CLR 269SCT351 68 65 15.0 0.0 0.881 13.8 24 08/14 00Z 63 55 248 14 0.00 0.00 570 580 16.8 -9.4 1011.3 27 CLR CLR 269FEW351 68 63 15.0 0.0 0.854 12.9 27 08/14 03Z 59 54 240 10 0.00 0.00 569 580 16.5 -9.2 1012.5 41 013SCT024 CLR 286FEW333 63 59 15.0 0.0 0.825 10.9 30 08/14 06Z 58 54 240 8 0.00 0.00 568 580 16.6 -9.3 1013.9 65 005BKN027 CLR 292FEW344 63 58 15.0 0.0 0.801 10.0 33 08/14 09Z 59 55 230 7 0.00 0.00 568 579 16.1 -9.5 1013.9 99 000OVC031 CLR 297FEW349 59 58 15.0 0.0 0.796 10.1 36 08/14 12Z 58 55 215 4 0.00 0.00 567 579 15.5 -9.6 1014.2 99 000OVC032 CLR 293BKN343 59 58 15.0 0.0 0.786 10.1 39 08/14 15Z 60 54 215 4 0.00 0.00 566 580 14.8 -9.9 1016.0 100 006BKN032 CLR 289BKN351 60 58 15.0 0.0 0.788 10.0 42 08/14 18Z 65 54 253 7 0.00 0.00 567 581 14.5 -9.6 1016.4 92 009BKN032 CLR 290BKN351 65 58 15.0 0.0 0.777 10.9 45 08/14 21Z 67 54 268 12 0.00 0.00 567 581 14.8 -9.7 1016.3 6 026FEW030 CLR CLR 67 65 15.0 0.0 0.756 12.7 48 08/15 00Z 64 54 272 12 0.00 0.00 568 582 14.9 -9.3 1016.3 4 026FEW030 CLR CLR 68 64 15.0 0.0 0.741 12.7 51 08/15 03Z 58 54 276 7 0.00 0.00 568 582 15.7 -9.4 1016.7 7 017FEW022 CLR 311FEW330 64 58 15.0 0.0 0.712 12.3 54 08/15 06Z 56 53 262 4 0.00 0.00 568 583 16.3 -9.4 1017.6 10 019FEW023 CLR CLR 64 56 14.5 0.0 0.744 12.8 57 08/15 09Z 56 53 256 5 0.00 0.00 567 582 16.2 -9.2 1017.8 37 017SCT024 CLR CLR 56 56 15.0 0.0 0.741 11.4 60 08/15 12Z 55 53 268 5 0.00 0.00 567 582 15.7 -9.2 1017.7 51 016BKN024 CLR CLR 56 55 15.0 0.0 0.722 11.4 63 08/15 15Z 57 53 265 4 0.00 0.00 567 583 15.4 -9.1 1019.2 75 008BKN021 CLR CLR 58 54 15.0 0.0 0.714 12.2 66 08/15 18Z 65 53 275 5 0.00 0.00 568 584 15.7 -8.9 1019.7 74 010BKN023 CLR CLR 65 54 15.0 0.0 0.701 12.4 69 08/15 21Z 66 54 281 10 0.00 0.00 569 585 16.5 -8.7 1019.4 6 FEW CLR CLR 67 65 15.0 0.0 0.698 15.0 72 08/16 00Z 64 54 286 8 0.00 0.00 570 586 16.9 -8.8 1018.4 28 FEW CLR 364SCT418 67 64 15.0 0.0 0.695 18.7 75 08/16 03Z 58 54 276 5 0.00 0.00 570 586 17.6 -9.2 1018.8 100 CLR CLR 314OVC384 64 58 14.4 0.0 0.695 19.6 78 08/16 06Z 56 53 246 3 0.00 0.00 571 587 18.0 -8.7 1019.6 73 010FEW013 CLR 302BKN368 64 55 15.0 0.0 0.766 19.5 81 08/16 09Z 54 53 214 2 0.00 0.00 571 587 18.0 -8.2 1018.6 11 007FEW011 CLR 347FEW376 55 54 15.0 0.0 0.713 19.6 84 08/16 12Z 54 52 207 2 0.00 0.00 571 587 17.7 -8.2 1018.4 7 007FEW011 CLR 365FEW393 55 54 15.0 0.0 0.682 20.1 87 08/16 15Z 58 53 228 2 0.00 0.00 571 587 17.7 -7.9 1019.6 32 CLR CLR 418SCT443 58 54 15.0 0.0 0.629 20.2 90 08/16 18Z 69 54 284 3 0.00 0.00 572 588 18.3 -7.6 1019.3 19 CLR CLR 415FEW440 69 53 15.1 0.0 0.602 20.7 93 08/16 21Z 73 53 290 8 0.00 0.00 573 589 19.1 -7.1 1018.3 49 CLR CLR 348SCT419 74 69 15.0 0.0 0.622 21.5 96 08/17 00Z 69 52 290 9 0.00 0.00 574 589 19.8 -6.9 1017.0 74 CLR CLR 317BKN391 74 67 15.0 0.0 0.631 22.5 99 08/17 03Z 59 53 279 4 0.00 0.00 574 589 20.2 -6.5 1017.2 67 CLR CLR 321BKN400 69 59 15.1 0.0 0.634 22.2 102 08/17 06Z 56 53 280 3 0.00 0.00 575 590 20.8 -6.5 1018.3 35 CLR CLR 323SCT399 69 56 15.0 0.0 0.718 21.8 105 08/17 09Z 55 53 290 3 0.00 0.00 575 589 21.0 -6.5 1017.9 9 CLR CLR 362FEW383 56 55 15.0 0.0 0.671 22.1 108 08/17 12Z 54 52 291 3 0.00 0.00 574 589 21.0 -6.8 1017.5 46 CLR CLR 388SCT426 56 54 14.7 0.0 0.593 21.6 111 08/17 15Z 58 53 242 2 0.00 0.00 574 589 20.4 -7.4 1018.5 20 CLR CLR 312FEW355 58 54 15.0 0.0 0.550 21.4 114 08/17 18Z 68 53 288 4 0.00 0.00 575 590 20.1 -6.7 1018.0 9 CLR CLR 314FEW354 69 54 15.0 0.0 0.550 22.2 117 08/17 21Z 70 53 288 9 0.00 0.00 576 590 20.9 -6.3 1017.2 0 CLR CLR CLR 71 68 13.2 0.0 0.553 22.9 120 08/18 00Z 65 53 283 8 0.00 0.00 576 590 21.7 -5.7 1016.5 14 CLR CLR 373FEW429 72 64 15.0 0.0 0.574 23.4 123 08/18 03Z 57 54 263 4 0.00 0.00 577 591 21.9 -5.6 1016.3 69 CLR CLR 333BKN428 65 57 14.8 0.0 0.638 23.6 126 08/18 06Z 55 53 249 4 0.00 0.00 577 592 21.7 -5.1 1017.3 66 CLR CLR 329BKN392 65 55 13.9 0.0 0.672 24.3 129 08/18 09Z 56 53 231 4 0.00 0.00 577 591 21.7 -3.6 1016.7 100 006BKN014 CLR 324OVC418 57 55 13.5 0.0 0.694 24.5 132 08/18 12Z 56 53 215 4 0.00 0.00 578 591 21.7 -3.3 1015.8 100 006BKN014 CLR 324OVC413 57 55 15.0 0.0 0.721 24.5 135 08/18 15Z 57 53 185 3 0.00 0.00 578 592 21.5 -3.4 1016.2 88 009BKN014 CLR 314BKN374 58 56 15.0 0.0 0.703 23.6 138 08/18 18Z 68 54 280 4 0.00 0.00 579 592 21.5 -2.4 1015.9 74 009SCT014 CLR 310BKN366 68 56 15.0 0.0 0.663 23.5 141 08/18 21Z 72 54 290 7 0.00 0.00 580 593 22.2 -3.0 1014.2 24 CLR CLR 305FEW325 72 68 13.3 0.0 0.622 24.8 144 08/19 00Z 67 53 283 7 0.00 0.00 581 592 22.7 -2.5 1013.2 30 CLR CLR 315SCT347 73 66 15.2 0.0 0.614 25.0 147 08/19 03Z 58 53 243 4 0.00 0.00 581 593 23.2 -2.8 1013.2 7 CLR CLR 376FEW397 67 58 14.5 0.0 0.604 25.4 150 08/19 06Z 56 53 200 4 0.00 0.00 582 593 23.3 -2.9 1013.5 7 FEW CLR 390FEW411 67 56 13.4 0.0 0.670 26.8 153 08/19 09Z 55 53 198 4 0.00 0.00 582 592 23.3 -3.1 1012.4 35 FEW CLR 365SCT387 56 55 15.0 0.0 0.657 25.4 156 08/19 12Z 54 52 190 4 0.00 0.00 581 591 23.2 -3.9 1012.0 24 FEW CLR 374FEW399 56 54 14.9 0.0 0.666 24.3 159 08/19 15Z 58 53 193 3 0.00 0.00 581 592 22.7 -3.6 1012.9 3 CLR CLR 415FEW430 58 54 14.9 0.0 0.708 23.3 162 08/19 18Z 68 53 271 4 0.00 0.00 581 592 22.7 -3.2 1012.9 1 CLR CLR 416FEW430 68 54 15.0 0.0 0.763 22.2 165 08/19 21Z 71 53 289 9 0.00 0.00 582 592 23.0 -2.7 1011.9 0 CLR CLR 443FEW455 73 68 15.2 0.0 0.736 23.7 168 08/20 00Z 66 53 276 8 0.00 0.00 582 592 23.1 -2.4 1011.6 2 CLR CLR 439FEW452 73 65 15.0 0.0 0.756 24.1