Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 17AUG 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 08/17 00Z 68 55 304 7 0.00 0.00 574 588 18.6 -8.1 1016.2 100 000FEW000 CLR 000OVC000 **** **** 13.4 0.0 0.750 21.7 3 08/17 03Z 58 55 303 7 0.00 0.00 573 587 18.5 -7.8 1016.7 100 CLR CLR 305OVC439 68 58 14.8 0.0 0.733 21.0 6 08/17 06Z 57 55 277 2 0.00 0.00 573 588 19.0 -7.5 1017.4 100 CLR CLR 294OVC443 68 57 15.0 0.0 0.794 20.8 9 08/17 09Z 58 55 285 3 0.00 0.00 574 588 19.2 -7.0 1016.7 100 CLR 233FEW249 249OVC436 58 57 15.1 0.0 0.803 21.5 12 08/17 12Z 56 54 282 3 0.00 0.00 572 586 18.3 -7.5 1017.5 100 CLR 226FEW248 266OVC421 58 56 14.7 0.0 0.803 19.7 15 08/17 15Z 59 54 260 2 0.00 0.00 572 587 18.4 -9.1 1017.8 99 CLR 236SCT248 248OVC421 59 56 15.0 0.0 0.745 20.8 18 08/17 18Z 66 54 292 5 0.00 0.00 572 588 18.2 -9.7 1018.3 99 CLR 225SCT248 262OVC423 66 56 15.0 0.0 0.776 20.3 21 08/17 21Z 72 54 292 7 0.00 0.00 574 588 19.3 -9.3 1016.6 100 CLR 201FEW248 330OVC446 72 66 15.0 0.0 0.657 21.2 24 08/18 00Z 68 55 291 9 0.00 0.00 575 588 20.0 -8.5 1015.5 69 CLR CLR 341BKN447 73 66 15.0 0.0 0.641 22.3 27 08/18 03Z 59 55 286 7 0.00 0.00 575 588 20.6 -8.4 1016.1 41 CLR CLR 374SCT439 68 59 14.7 0.0 0.622 22.2 30 08/18 06Z 56 55 261 3 0.00 0.00 575 589 21.3 -7.7 1017.5 55 006FEW012 CLR 356SCT436 68 56 14.4 0.0 0.674 21.7 33 08/18 09Z 56 54 244 2 0.00 0.00 575 589 21.5 -6.3 1016.3 89 005SCT011 CLR 295BKN385 57 56 15.0 0.0 0.711 22.2 36 08/18 12Z 55 53 266 4 0.00 0.00 575 589 21.1 -6.8 1016.2 62 006SCT011 CLR 299BKN380 57 55 14.9 0.0 0.741 22.0 39 08/18 15Z 58 54 268 3 0.00 0.00 575 589 21.0 -6.1 1017.2 97 005BKN014 CLR 302BKN420 58 55 15.0 0.0 0.741 22.7 42 08/18 18Z 68 54 285 4 0.00 0.00 576 590 21.1 -6.1 1017.0 86 006BKN014 CLR 284BKN368 68 55 15.0 0.0 0.753 23.2 45 08/18 21Z 72 55 285 7 0.00 0.00 577 591 21.7 -6.4 1015.6 45 CLR 240FEW250 278SCT345 72 68 13.4 0.0 0.755 24.2 48 08/19 00Z 67 54 293 8 0.00 0.00 578 591 22.3 -5.8 1014.8 35 CLR 236FEW247 286SCT343 73 66 13.4 0.0 0.778 25.1 51 08/19 03Z 59 55 275 6 0.00 0.00 578 591 22.8 -5.8 1015.4 97 CLR 226FEW242 325BKN377 67 59 14.4 0.0 0.878 24.6 54 08/19 06Z 57 55 258 3 0.00 0.00 578 591 22.9 -6.1 1015.9 98 006FEW012 217FEW248 317BKN378 67 57 13.5 0.0 0.957 24.6 57 08/19 09Z 56 54 246 3 0.00 0.00 578 591 22.9 -6.2 1014.4 89 007SCT012 196SCT250 252BKN379 58 56 15.1 0.0 0.970 25.4 60 08/19 12Z 56 54 246 1 0.00 0.00 579 590 23.3 -7.2 1013.6 94 006SCT012 189BKN248 271BKN380 58 56 14.9 0.0 0.922 25.9 63 08/19 15Z 60 55 245 1 0.00 0.00 578 590 23.3 -6.8 1014.2 71 CLR 185SCT232 296BKN388 60 56 15.0 0.0 0.882 25.5 66 08/19 18Z 71 56 289 4 0.00 0.00 579 591 23.6 -6.0 1014.4 47 CLR 186FEW231 307SCT391 71 56 15.2 0.0 0.825 25.4 69 08/19 21Z 74 56 294 8 0.00 0.00 580 591 23.7 -5.1 1013.5 100 CLR CLR 336OVC413 75 71 15.0 0.0 0.809 26.3 72 08/20 00Z 68 55 292 7 0.00 0.00 581 591 24.2 -5.3 1012.6 100 CLR CLR 321OVC419 75 68 13.3 0.0 0.812 26.7 75 08/20 03Z 60 55 264 4 0.00 0.00 581 591 24.6 -5.6 1012.6 100 CLR CLR 292OVC435 68 60 15.1 0.0 0.840 27.0 78 08/20 06Z 58 55 239 3 0.00 0.00 580 592 24.4 -5.5 1013.5 100 CLR CLR 283OVC428 68 58 14.9 0.0 0.800 27.9 81 08/20 09Z 57 54 218 3 0.00 0.00 580 591 24.3 -5.9 1012.8 58 CLR CLR 300BKN372 58 57 14.9 0.0 0.793 28.0 84 08/20 12Z 56 53 240 3 0.00 0.00 580 590 24.0 -6.6 1012.7 57 CLR CLR 297BKN371 58 56 14.9 0.0 0.835 27.8 87 08/20 15Z 60 54 252 2 0.00 0.00 579 591 23.8 -6.5 1013.6 80 CLR CLR 316BKN388 60 56 15.0 0.0 0.860 27.2 90 08/20 18Z 70 55 274 4 0.00 0.00 579 591 23.3 -6.3 1014.2 89 CLR 231FEW250 295BKN368 70 56 15.1 0.0 0.908 26.4 93 08/20 21Z 73 54 283 7 0.00 0.00 580 591 23.2 -5.9 1013.2 100 CLR 222SCT250 251OVC422 73 70 13.4 0.0 0.884 26.8 96 08/21 00Z 68 54 285 7 0.00 0.00 579 590 23.6 -6.0 1012.8 100 CLR 222FEW250 294OVC424 73 68 15.2 0.0 0.891 26.7 99 08/21 03Z 59 54 263 4 0.00 0.00 579 591 23.5 -5.5 1013.3 100 CLR CLR 370OVC429 68 59 15.1 0.0 0.895 26.2 102 08/21 06Z 57 54 199 4 0.00 0.00 579 591 23.4 -5.1 1014.2 91 CLR CLR 375BKN424 68 57 13.4 0.0 0.875 25.9 105 08/21 09Z 57 54 214 4 0.00 0.00 578 590 22.9 -5.9 1014.1 4 FEW CLR CLR 57 56 13.5 0.0 0.881 26.1 108 08/21 12Z 56 54 225 3 0.00 0.00 578 589 22.7 -6.2 1014.0 8 007FEW011 CLR 399FEW415 57 56 14.9 0.0 0.902 26.0 111 08/21 15Z 59 55 213 3 0.00 0.00 577 590 22.2 -6.4 1015.3 31 004SCT012 CLR 391FEW403 59 56 15.0 0.0 0.937 25.4 114 08/21 18Z 68 55 273 5 0.00 0.00 577 590 21.9 -6.4 1015.7 19 005FEW012 CLR 392FEW408 68 56 15.0 0.0 0.967 24.9 117 08/21 21Z 69 55 281 8 0.00 0.00 577 590 21.8 -6.4 1015.1 3 CLR CLR 375FEW400 70 68 15.1 0.0 1.018 24.8 120 08/22 00Z 66 54 272 7 0.00 0.00 577 590 21.9 -6.5 1014.6 16 CLR CLR 355FEW389 70 66 15.0 0.0 1.057 25.2 123 08/22 03Z 60 54 244 3 0.00 0.00 578 590 22.2 -6.5 1014.2 62 CLR CLR 289BKN338 66 60 15.1 0.0 1.051 25.3 126 08/22 06Z 58 54 199 4 0.00 0.00 578 590 21.9 -6.2 1014.7 37 FEW CLR 292SCT339 66 58 13.5 0.0 1.017 25.2 129 08/22 09Z 57 55 202 4 0.00 0.00 577 589 22.0 -6.8 1014.5 94 FEW CLR 357BKN410 58 57 15.1 0.0 1.004 24.7 132 08/22 12Z 56 54 214 3 0.00 0.00 576 588 21.4 -7.4 1014.6 97 CLR CLR 343BKN419 58 56 15.0 0.0 0.967 23.9 135 08/22 15Z 60 55 218 3 0.00 0.00 576 589 21.2 -7.5 1015.3 11 CLR CLR 302FEW323 60 56 15.0 0.0 0.907 23.5 138 08/22 18Z 71 55 283 4 0.00 0.00 576 589 21.2 -7.1 1015.5 6 CLR CLR 297FEW318 71 56 15.0 0.0 0.859 23.8 141 08/22 21Z 75 54 284 8 0.00 0.00 577 589 21.9 -7.1 1014.2 0 CLR CLR CLR 75 71 15.1 0.0 0.832 24.5 144 08/23 00Z 69 53 286 7 0.00 0.00 578 589 22.6 -7.1 1013.4 0 CLR CLR CLR 75 68 15.0 0.0 0.832 24.8 147 08/23 03Z 60 54 268 4 0.00 0.00 577 589 22.7 -7.0 1013.6 0 CLR CLR CLR 69 60 15.1 0.0 0.835 24.6 150 08/23 06Z 57 54 247 3 0.00 0.00 577 589 23.2 -7.1 1014.2 10 CLR CLR 335FEW369 69 57 15.0 0.0 0.855 24.4 153 08/23 09Z 56 54 271 3 0.00 0.00 577 589 23.1 -7.2 1013.6 6 CLR CLR 325FEW354 57 56 15.0 0.0 0.904 24.2 156 08/23 12Z 56 54 289 3 0.00 0.00 577 588 23.0 -8.2 1013.5 24 CLR CLR 316SCT356 57 56 14.9 0.0 0.911 24.1 159 08/23 15Z 59 55 267 3 0.00 0.00 576 588 22.5 -8.5 1014.7 51 CLR CLR 295BKN337 60 56 15.0 0.0 0.889 24.0 162 08/23 18Z 69 55 292 5 0.00 0.00 576 589 22.7 -8.5 1015.0 38 CLR CLR 294SCT331 69 56 15.0 0.0 0.893 24.2 165 08/23 21Z 71 55 295 9 0.00 0.00 577 589 23.0 -8.6 1014.3 0 CLR CLR CLR 72 69 15.0 0.0 0.904 24.7 168 08/24 00Z 68 55 293 9 0.00 0.00 577 589 23.3 -8.5 1013.3 0 CLR CLR CLR 72 67 15.0 0.0 0.914 25.4