Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 18MAY 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 05/18 12Z 62 29 360 17 0.00 0.00 559 569 8.5 -11.8 1011.8 0 CLR CLR CLR **** **** 15.0 0.0 0.216 13.2 3 05/18 15Z 65 32 13 13 0.00 0.00 558 569 8.6 -12.5 1013.3 0 CLR CLR CLR 65 62 15.0 0.0 0.207 12.6 6 05/18 18Z 70 32 25 13 0.00 0.00 557 570 7.8 -12.9 1014.6 0 CLR CLR CLR 70 62 15.0 0.0 0.237 14.3 9 05/18 21Z 76 33 358 10 0.00 0.00 558 570 11.2 -14.4 1013.6 0 CLR CLR CLR 76 71 15.0 0.0 0.251 18.0 12 05/19 00Z 70 40 272 11 0.00 0.00 559 570 13.6 -15.4 1012.9 0 CLR CLR CLR 78 68 15.0 0.0 0.291 19.1 15 05/19 03Z 59 45 240 3 0.00 0.00 559 571 14.0 -15.1 1013.1 0 CLR CLR CLR 70 59 15.0 0.0 0.314 19.7 18 05/19 06Z 55 44 198 4 0.00 0.00 560 572 14.2 -15.3 1014.6 0 CLR CLR CLR 70 55 15.0 0.0 0.337 20.3 21 05/19 09Z 54 45 235 3 0.00 0.00 560 572 14.2 -15.6 1014.3 0 CLR CLR CLR 55 54 15.0 0.0 0.319 20.0 24 05/19 12Z 54 44 325 1 0.00 0.00 560 572 14.0 -15.8 1014.3 0 CLR CLR CLR 55 53 15.0 0.0 0.303 19.8 27 05/19 15Z 61 41 121 2 0.00 0.00 560 573 14.0 -14.4 1015.9 0 CLR CLR CLR 61 54 15.0 0.0 0.307 18.6 30 05/19 18Z 72 41 333 3 0.00 0.00 561 575 13.9 -13.7 1015.9 0 CLR CLR CLR 72 54 15.0 0.0 0.337 18.3 33 05/19 21Z 75 41 281 8 0.00 0.00 563 576 14.1 -13.0 1014.7 1 CLR CLR CLR 77 71 15.0 0.0 0.405 20.6 36 05/20 00Z 69 42 288 10 0.00 0.00 564 576 15.2 -12.8 1013.9 1 CLR CLR CLR 79 66 15.0 0.0 0.457 21.1 39 05/20 03Z 61 43 254 4 0.00 0.00 565 577 15.6 -13.0 1014.1 0 CLR CLR CLR 70 61 15.1 0.0 0.440 20.6 42 05/20 06Z 55 46 216 3 0.00 0.00 565 577 15.7 -13.4 1014.9 1 CLR CLR 358FEW369 70 55 15.0 0.0 0.467 21.0 45 05/20 09Z 54 46 258 3 0.00 0.00 564 576 15.8 -12.8 1014.4 3 CLR CLR 338FEW357 55 54 15.0 0.0 0.485 20.7 48 05/20 12Z 52 47 233 2 0.00 0.00 564 575 15.7 -13.3 1013.8 33 CLR CLR 297SCT412 55 52 15.1 0.0 0.503 20.2 51 05/20 15Z 57 47 212 2 0.00 0.00 564 575 15.4 -12.9 1014.1 83 CLR 234FEW244 254BKN421 57 52 15.0 0.0 0.519 19.7 54 05/20 18Z 68 47 292 4 0.00 0.00 564 576 15.2 -13.6 1013.6 50 CLR 218FEW244 261SCT408 68 52 15.2 0.0 0.547 19.4 57 05/20 21Z 71 48 301 9 0.00 0.00 565 575 15.7 -13.7 1012.1 23 CLR 186FEW234 333FEW377 72 68 13.4 0.0 0.604 20.3 60 05/21 00Z 65 48 299 10 0.00 0.00 565 575 16.5 -13.1 1011.1 41 CLR 184FEW224 318SCT352 73 63 15.2 0.0 0.628 21.1 63 05/21 03Z 56 48 284 5 0.00 0.00 566 575 16.3 -11.8 1011.7 66 CLR CLR 295BKN340 65 56 13.4 0.0 0.616 20.1 66 05/21 06Z 53 48 236 3 0.00 0.00 566 577 17.3 -10.4 1012.4 32 CLR CLR 296SCT341 65 52 15.0 0.0 0.570 20.0 69 05/21 09Z 52 47 219 2 0.00 0.00 567 577 17.5 -9.2 1011.7 45 CLR CLR 319SCT362 53 52 14.7 0.0 0.563 20.6 72 05/21 12Z 51 47 269 2 0.00 0.00 568 577 17.6 -9.3 1011.3 33 CLR CLR 326SCT374 53 51 14.7 0.0 0.575 20.6 75 05/21 15Z 57 47 208 1 0.00 0.00 568 578 17.0 -9.2 1012.3 47 CLR CLR 387SCT425 57 50 15.0 0.0 0.585 19.7 78 05/21 18Z 67 49 296 4 0.00 0.00 568 578 17.1 -9.4 1011.8 32 CLR CLR 378SCT415 67 50 15.2 0.0 0.580 19.8 81 05/21 21Z 71 50 301 9 0.00 0.00 569 579 17.5 -9.4 1010.8 6 CLR CLR 397FEW423 72 67 15.2 0.0 0.578 21.4 84 05/22 00Z 65 50 300 10 0.00 0.00 570 578 18.0 -9.8 1009.9 6 CLR CLR 418FEW442 72 63 15.1 0.0 0.555 21.8 87 05/22 03Z 57 49 310 6 0.00 0.00 570 578 18.2 -9.8 1010.3 2 CLR CLR 445FEW462 65 57 15.0 0.0 0.539 21.6 90 05/22 06Z 53 48 297 2 0.00 0.00 569 578 18.3 -10.0 1010.6 1 CLR CLR CLR 65 53 15.1 0.0 0.526 20.3 93 05/22 09Z 53 48 278 2 0.00 0.00 568 577 18.2 -10.3 1009.8 0 CLR CLR CLR 54 52 15.1 0.0 0.502 20.3 96 05/22 12Z 51 48 290 3 0.00 0.00 568 576 18.3 -11.1 1009.6 0 CLR CLR CLR 53 51 15.0 0.0 0.494 20.3 99 05/22 15Z 57 49 288 3 0.00 0.00 567 576 18.0 -10.5 1010.2 5 CLR CLR 398FEW425 57 51 15.0 0.0 0.473 19.6 102 05/22 18Z 66 49 298 5 0.00 0.00 568 576 17.6 -10.3 1010.1 5 CLR CLR 404FEW432 66 51 15.2 0.0 0.445 18.7 105 05/22 21Z 68 50 300 10 0.00 0.00 569 577 17.6 -10.3 1009.4 16 CLR CLR 426FEW456 69 66 15.2 0.0 0.442 20.2 108 05/23 00Z 64 49 302 11 0.00 0.00 569 576 17.8 -10.2 1008.6 11 CLR CLR 423FEW456 69 63 15.0 0.0 0.416 20.7 111 05/23 03Z 57 50 304 7 0.00 0.00 569 577 17.9 -10.2 1009.2 9 CLR CLR 401FEW457 64 57 15.0 0.0 0.443 20.1 114 05/23 06Z 53 50 305 2 0.00 0.00 568 577 17.8 -10.3 1010.7 15 CLR CLR 405FEW457 64 53 13.4 0.0 0.472 18.5 117 05/23 09Z 52 50 310 2 0.00 0.00 567 576 17.5 -10.5 1011.1 7 CLR CLR 410FEW456 53 52 13.5 0.0 0.486 15.3 120 05/23 12Z 51 49 148 0 0.00 0.00 566 575 17.2 -10.8 1011.5 8 CLR CLR 412FEW456 53 51 15.1 0.0 0.491 14.8 123 05/23 15Z 56 49 209 1 0.00 0.00 565 576 16.5 -10.7 1012.7 25 012FEW017 CLR 400FEW456 56 51 15.0 0.0 0.485 13.1 126 05/23 18Z 64 49 277 4 0.00 0.00 566 577 16.4 -10.4 1013.1 37 013FEW018 CLR 400SCT456 64 50 15.0 0.0 0.481 11.8 129 05/23 21Z 65 49 282 10 0.00 0.00 566 577 16.5 -10.3 1013.1 70 CLR CLR 385BKN449 66 64 15.0 0.0 0.481 14.4 132 05/24 00Z 61 49 274 12 0.00 0.00 566 577 16.1 -9.5 1013.2 41 CLR CLR 385SCT447 66 60 15.0 0.0 0.441 13.6 135 05/24 03Z 55 48 285 7 0.00 0.00 566 578 16.5 -9.2 1013.9 13 CLR CLR 403FEW444 61 55 15.0 0.0 0.434 15.2 138 05/24 06Z 51 48 287 4 0.00 0.00 566 578 16.7 -9.2 1015.3 33 CLR CLR 395SCT444 61 51 13.7 0.0 0.439 14.2 141 05/24 09Z 50 47 275 3 0.00 0.00 566 578 16.4 -10.0 1015.1 76 CLR CLR 386BKN444 51 50 15.0 0.0 0.426 14.3 144 05/24 12Z 49 46 263 2 0.00 0.00 565 578 16.0 -10.0 1015.7 74 CLR CLR 385BKN438 51 49 15.0 0.0 0.415 13.9 147 05/24 15Z 54 47 276 2 0.00 0.00 565 579 15.8 -10.0 1017.0 7 CLR CLR 373FEW435 54 49 15.0 0.0 0.410 14.2 150 05/24 18Z 62 47 294 6 0.00 0.00 565 580 15.7 -9.9 1017.3 43 CLR CLR 374SCT434 62 49 15.0 0.0 0.424 14.4 153 05/24 21Z 64 48 298 9 0.00 0.00 567 581 15.9 -9.6 1016.6 4 CLR CLR 377FEW400 65 62 15.0 0.0 0.444 16.8 156 05/25 00Z 63 48 293 9 0.00 0.00 568 581 17.0 -9.6 1015.8 3 CLR CLR 382FEW403 65 61 15.0 0.0 0.429 19.4 159 05/25 03Z 55 48 286 6 0.00 0.00 568 582 17.2 -9.7 1016.8 0 CLR CLR CLR 63 55 15.0 0.0 0.419 18.5 162 05/25 06Z 52 48 255 2 0.00 0.00 568 583 17.6 -9.2 1017.5 0 CLR CLR CLR 63 51 15.0 0.0 0.401 18.8 165 05/25 09Z 51 48 276 2 0.00 0.00 568 582 17.9 -8.9 1016.4 62 CLR CLR 330BKN403 51 51 15.0 0.0 0.388 19.1 168 05/25 12Z 51 47 278 1 0.00 0.00 568 581 17.9 -9.2 1015.8 82 CLR CLR 321BKN388 51 50 15.0 0.0 0.387 19.2