Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 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 12Z 59 54 204 3 0.00 0.00 571 580 19.0 -10.8 1010.7 88 000BKN000 CLR 000BKN000 **** **** 15.0 0.0 0.906 11.9 3 08/13 15Z 60 54 173 5 0.00 0.00 570 580 18.0 -10.5 1012.0 94 012BKN024 CLR 286BKN340 60 59 15.0 0.0 0.882 11.7 6 08/13 18Z 65 54 247 7 0.00 0.00 569 580 16.9 -10.6 1012.6 95 014BKN024 CLR 270BKN344 65 58 15.0 0.0 0.887 11.8 9 08/13 21Z 67 55 248 14 0.00 0.00 569 580 16.9 -10.5 1012.1 97 CLR CLR 270BKN359 67 65 15.2 0.0 0.873 13.7 12 08/14 00Z 63 55 257 14 0.00 0.00 570 580 16.3 -9.6 1011.9 66 CLR CLR 272BKN360 67 63 15.0 0.0 0.828 11.7 15 08/14 03Z 59 55 251 10 0.00 0.00 569 580 15.8 -9.5 1013.2 56 009BKN025 CLR 305FEW337 63 59 15.0 0.0 0.795 10.8 18 08/14 06Z 59 54 251 8 0.00 0.00 568 580 16.4 -9.2 1014.1 76 004BKN028 CLR 318SCT348 63 59 15.0 0.0 0.775 10.3 21 08/14 09Z 59 55 237 6 0.00 0.00 568 580 15.7 -9.4 1014.3 99 000OVC030 CLR 318BKN352 60 59 15.0 0.0 0.786 10.2 24 08/14 12Z 59 55 224 3 0.00 0.00 567 579 15.6 -9.6 1014.3 100 000OVC031 CLR 319BKN350 59 59 15.0 0.0 0.772 10.4 27 08/14 15Z 60 54 221 4 0.00 0.00 567 580 14.7 -9.9 1016.0 94 000BKN032 CLR 329FEW340 60 58 15.0 0.0 0.782 10.2 30 08/14 18Z 65 54 263 6 0.00 0.00 567 581 14.6 -9.7 1016.6 87 000BKN032 CLR CLR 65 58 15.0 0.0 0.781 11.2 33 08/14 21Z 67 54 275 11 0.00 0.00 568 581 15.0 -9.6 1016.2 0 CLR CLR CLR 68 65 15.0 0.0 0.764 13.2 36 08/15 00Z 64 55 269 10 0.00 0.00 568 582 15.0 -9.4 1016.0 0 CLR CLR CLR 68 64 15.0 0.0 0.773 14.8 39 08/15 03Z 57 55 269 6 0.00 0.00 568 582 15.7 -9.3 1016.4 5 016FEW020 CLR CLR 64 57 15.0 0.0 0.731 13.8 42 08/15 06Z 56 54 253 4 0.00 0.00 568 583 16.4 -9.1 1017.7 7 013FEW017 CLR CLR 64 56 14.5 0.0 0.781 13.8 45 08/15 09Z 56 53 254 5 0.00 0.00 567 582 16.2 -9.1 1017.6 32 015SCT022 CLR CLR 56 56 14.7 0.0 0.769 12.7 48 08/15 12Z 57 54 259 5 0.00 0.00 567 582 15.9 -9.1 1017.5 52 014BKN024 CLR CLR 57 55 15.2 0.0 0.733 11.7 51 08/15 15Z 58 54 261 4 0.00 0.00 567 583 15.4 -9.0 1019.2 80 009BKN022 CLR CLR 58 56 15.0 0.0 0.735 13.0 54 08/15 18Z 64 54 284 6 0.00 0.00 568 584 15.8 -9.0 1019.6 82 009BKN024 CLR CLR 64 56 15.0 0.0 0.722 13.0 57 08/15 21Z 67 54 280 9 0.00 0.00 569 585 16.3 -9.0 1019.3 4 FEW CLR CLR 67 64 15.0 0.0 0.711 15.5 60 08/16 00Z 64 54 274 9 0.00 0.00 570 585 16.7 -8.7 1018.6 3 FEW CLR 366FEW400 67 64 15.0 0.0 0.748 17.9 63 08/16 03Z 57 54 271 4 0.00 0.00 570 586 17.5 -8.9 1018.4 19 CLR CLR 340FEW389 64 57 14.5 0.0 0.706 19.2 66 08/16 06Z 56 53 252 4 0.00 0.00 570 586 17.7 -8.7 1019.5 22 010FEW014 CLR 335FEW380 64 55 13.6 0.0 0.746 18.7 69 08/16 09Z 56 53 239 3 0.00 0.00 570 586 17.6 -8.7 1018.8 53 008SCT013 CLR 391FEW422 56 55 14.5 0.0 0.704 18.8 72 08/16 12Z 56 53 214 2 0.00 0.00 570 586 17.5 -8.9 1018.5 64 007BKN013 CLR 344SCT408 56 55 15.0 0.0 0.670 19.7 75 08/16 15Z 58 53 248 3 0.00 0.00 570 586 17.6 -9.0 1019.4 27 006FEW012 CLR 384FEW415 58 54 15.0 0.0 0.656 19.2 78 08/16 18Z 68 54 281 3 0.00 0.00 571 587 17.7 -8.5 1019.4 17 007FEW012 CLR 389FEW422 68 54 15.1 0.0 0.647 19.6 81 08/16 21Z 73 54 288 8 0.00 0.00 573 588 18.6 -8.2 1018.1 57 CLR CLR 369BKN424 73 68 15.0 0.0 0.640 20.5 84 08/17 00Z 68 53 288 9 0.00 0.00 573 588 18.8 -7.7 1017.2 65 CLR CLR 319BKN420 73 66 15.0 0.0 0.627 21.6 87 08/17 03Z 59 53 286 4 0.00 0.00 573 588 19.3 -7.1 1017.2 35 CLR CLR 312SCT360 68 59 15.1 0.0 0.559 21.3 90 08/17 06Z 56 53 269 3 0.00 0.00 574 589 19.8 -7.9 1018.0 34 CLR CLR 325SCT378 68 56 15.0 0.0 0.650 21.0 93 08/17 09Z 55 53 265 3 0.00 0.00 573 588 19.9 -8.1 1017.7 86 CLR CLR 325BKN391 56 55 14.7 0.0 0.627 20.4 96 08/17 12Z 54 52 274 3 0.00 0.00 572 587 19.4 -8.6 1017.9 79 CLR CLR 329BKN407 56 54 14.7 0.0 0.628 19.7 99 08/17 15Z 57 53 268 3 0.00 0.00 572 588 19.3 -9.1 1018.4 60 007FEW013 CLR 326SCT374 58 54 15.0 0.0 0.625 19.8 102 08/17 18Z 66 53 280 3 0.00 0.00 572 588 19.0 -8.6 1018.4 58 007FEW014 CLR 356SCT398 67 54 15.0 0.0 0.616 19.6 105 08/17 21Z 70 54 283 8 0.00 0.00 573 588 19.3 -8.4 1017.0 38 CLR CLR 382SCT438 71 67 15.0 0.0 0.607 20.6 108 08/18 00Z 64 53 278 9 0.00 0.00 573 588 20.0 -6.9 1016.9 42 CLR CLR 360SCT417 71 63 15.0 0.0 0.629 20.8 111 08/18 03Z 57 54 258 5 0.00 0.00 574 588 20.3 -6.3 1017.0 100 CLR CLR 357OVC436 64 57 14.4 0.0 0.648 21.3 114 08/18 06Z 57 53 225 5 0.00 0.00 574 588 20.6 -5.8 1017.7 100 010FEW017 CLR 349OVC441 64 57 13.5 0.0 0.611 21.6 117 08/18 09Z 57 53 217 5 0.00 0.00 574 588 20.3 -5.4 1016.9 100 009BKN017 CLR 333OVC437 57 57 13.5 0.0 0.613 21.9 120 08/18 12Z 57 53 209 4 0.00 0.00 574 588 20.2 -4.5 1016.7 100 009BKN017 CLR 324OVC441 57 57 15.0 0.0 0.626 22.5 123 08/18 15Z 58 53 198 3 0.00 0.00 574 588 19.9 -5.0 1017.0 96 009SCT015 CLR 313BKN433 58 56 15.0 0.0 0.618 21.4 126 08/18 18Z 65 52 224 3 0.00 0.00 574 589 19.7 -4.6 1016.9 98 010FEW016 CLR 298BKN427 65 56 15.0 0.0 0.668 21.6 129 08/18 21Z 65 52 279 7 0.00 0.00 575 589 19.7 -4.9 1016.7 100 CLR 233FEW250 258OVC380 69 64 15.2 0.0 0.726 21.3 132 08/19 00Z 64 53 250 7 0.00 0.00 576 589 19.6 -4.6 1015.4 100 CLR 235FEW250 271OVC367 69 64 15.0 0.0 0.748 22.0 135 08/19 03Z 58 54 225 6 0.00 0.00 576 588 19.1 -3.9 1015.1 94 CLR CLR 300BKN350 65 58 15.0 0.0 0.690 22.1 138 08/19 06Z 56 53 210 6 0.00 0.00 576 589 19.4 -3.8 1015.8 92 012FEW016 CLR 317BKN375 65 56 15.0 0.0 0.520 21.1 141 08/19 09Z 57 53 203 6 0.00 0.00 575 588 19.6 -3.4 1015.0 100 009SCT017 CLR 378OVC430 57 56 15.0 0.0 0.418 19.3 144 08/19 12Z 57 52 199 4 0.00 0.00 575 587 19.9 -3.7 1014.4 95 010BKN018 CLR 377BKN433 57 55 15.0 0.0 0.469 17.3 147 08/19 15Z 58 53 176 5 0.00 0.00 575 588 19.4 -3.5 1014.9 91 011BKN019 CLR 382SCT428 58 56 15.0 0.0 0.613 17.5 150 08/19 18Z 66 52 257 4 0.00 0.00 576 589 18.8 -3.2 1015.2 53 011SCT019 CLR 383FEW426 66 56 15.0 0.0 0.688 14.9 153 08/19 21Z 70 53 284 7 0.00 0.00 577 589 19.5 -3.2 1013.5 3 CLR CLR 380FEW395 70 66 15.1 0.0 0.650 17.2 156 08/20 00Z 67 53 282 8 0.00 0.00 578 589 20.0 -2.9 1011.9 8 CLR CLR 381FEW404 71 65 15.1 0.0 0.622 21.7 159 08/20 03Z 58 53 241 3 0.00 0.00 579 589 20.9 -2.2 1011.8 8 CLR CLR 389FEW407 67 58 14.5 0.0 0.595 22.1 162 08/20 06Z 56 53 221 3 0.00 0.00 579 589 21.2 -2.2 1012.2 16 FEW CLR 374FEW406 67 56 13.4 0.0 0.602 22.6 165 08/20 09Z 55 53 207 3 0.00 0.00 580 589 21.1 -1.8 1011.1 9 FEW CLR 382FEW394 56 55 15.0 0.0 0.589 22.9 168 08/20 12Z 55 53 181 4 0.00 0.00 580 589 21.1 -1.8 1010.8 4 CLR CLR 382FEW394 56 55 15.0 0.0 0.565 22.6