Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 17MAY 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 05/17 12Z 48 45 186 3 0.00 0.00 560 570 11.1 -12.0 1012.5 6 CLR CLR 000FEW000 **** **** 15.0 0.0 0.541 13.5 3 05/17 15Z 53 45 201 3 0.00 0.00 559 570 9.8 -11.1 1012.6 43 CLR CLR 373SCT428 53 48 15.0 0.0 0.570 12.1 6 05/17 18Z 62 43 321 5 0.00 0.00 560 570 9.0 -10.5 1011.7 72 CLR CLR 345BKN434 62 48 15.0 0.0 0.557 11.3 9 05/17 21Z 67 42 296 10 0.00 0.00 561 570 8.2 -9.0 1010.2 49 CLR CLR 388SCT418 68 62 15.0 0.0 0.489 14.5 12 05/18 00Z 71 34 331 13 0.00 0.00 562 569 9.9 -8.0 1008.1 46 CLR CLR 402SCT434 71 62 15.0 0.0 0.355 16.6 15 05/18 03Z 67 35 343 10 0.00 0.00 562 569 10.8 -8.0 1007.9 9 CLR CLR 440FEW364 71 67 15.0 0.0 0.285 17.6 18 05/18 06Z 66 27 355 16 0.00 0.00 562 570 10.2 -8.5 1009.4 5 CLR CLR 440FEW360 72 65 15.0 0.0 0.219 16.3 21 05/18 09Z 66 24 5 18 0.00 0.00 561 569 9.3 -8.7 1009.4 0 CLR CLR CLR 67 64 15.0 0.0 0.192 15.5 24 05/18 12Z 62 28 0 17 0.00 0.00 561 569 9.8 -10.5 1010.3 0 CLR CLR CLR 67 62 15.0 0.0 0.205 13.4 27 05/18 15Z 64 32 358 12 0.00 0.00 559 569 8.9 -13.0 1012.4 3 CLR CLR 295FEW314 64 61 15.0 0.0 0.214 12.5 30 05/18 18Z 70 32 12 12 0.00 0.00 559 570 8.1 -13.0 1012.9 1 CLR CLR 295FEW314 71 61 15.0 0.0 0.232 14.7 33 05/18 21Z 75 34 350 11 0.00 0.00 559 569 10.9 -14.2 1011.9 0 CLR CLR CLR 75 71 15.0 0.0 0.276 17.7 36 05/19 00Z 70 42 269 10 0.00 0.00 559 569 13.2 -16.5 1011.4 0 CLR CLR CLR 77 68 15.0 0.0 0.343 19.5 39 05/19 03Z 60 46 248 5 0.00 0.00 560 570 13.7 -15.2 1012.1 0 CLR CLR CLR 71 60 15.0 0.0 0.373 19.3 42 05/19 06Z 55 46 202 4 0.00 0.00 560 571 14.2 -15.2 1013.4 0 CLR CLR CLR 71 55 15.0 0.0 0.372 20.1 45 05/19 09Z 54 46 210 3 0.00 0.00 560 571 14.5 -15.1 1013.2 0 CLR CLR CLR 55 54 15.0 0.0 0.342 19.7 48 05/19 12Z 53 46 205 1 0.00 0.00 560 571 14.5 -15.3 1013.5 0 CLR CLR CLR 55 53 15.0 0.0 0.335 19.4 51 05/19 15Z 61 44 125 2 0.00 0.00 560 573 14.3 -14.5 1015.0 0 CLR CLR CLR 61 53 15.0 0.0 0.339 18.8 54 05/19 18Z 71 42 315 3 0.00 0.00 562 574 14.2 -13.4 1015.0 0 CLR CLR CLR 72 53 15.0 0.0 0.338 18.1 57 05/19 21Z 75 42 283 8 0.00 0.00 564 576 14.0 -12.9 1014.1 3 CLR CLR 381FEW400 76 71 15.0 0.0 0.401 20.6 60 05/20 00Z 68 43 285 9 0.00 0.00 565 576 15.4 -13.0 1013.2 6 CLR CLR 355FEW387 78 66 15.2 0.0 0.430 21.2 63 05/20 03Z 59 45 263 5 0.00 0.00 565 577 15.8 -12.8 1013.8 9 CLR CLR 314FEW367 69 59 15.0 0.0 0.426 20.6 66 05/20 06Z 54 46 207 3 0.00 0.00 565 577 15.6 -13.2 1014.6 6 CLR CLR 328FEW372 69 54 15.0 0.0 0.445 20.9 69 05/20 09Z 54 45 255 1 0.00 0.00 565 577 15.8 -13.0 1014.1 9 CLR CLR 371FEW404 54 54 15.0 0.0 0.464 21.4 72 05/20 12Z 53 46 292 2 0.00 0.00 565 576 15.7 -13.1 1013.3 24 CLR CLR 311FEW413 54 53 15.0 0.0 0.482 21.1 75 05/20 15Z 59 47 221 0 0.00 0.00 564 576 15.5 -13.1 1014.2 87 CLR CLR 280BKN415 59 52 15.0 0.0 0.497 20.4 78 05/20 18Z 69 47 273 3 0.00 0.00 565 577 15.4 -12.7 1013.6 49 CLR CLR 281SCT409 70 52 15.1 0.0 0.479 20.3 81 05/20 21Z 73 47 296 8 0.00 0.00 566 577 15.8 -12.2 1012.6 0 CLR CLR 418FEW430 73 69 15.0 0.0 0.490 21.2 84 05/21 00Z 68 47 300 9 0.00 0.00 567 577 16.6 -11.1 1011.5 0 CLR CLR CLR 74 66 15.1 0.0 0.511 21.6 87 05/21 03Z 59 47 304 6 0.00 0.00 568 578 16.7 -10.2 1011.9 5 CLR CLR 403FEW418 68 59 15.1 0.0 0.512 21.2 90 05/21 06Z 54 47 277 3 0.00 0.00 568 579 17.6 -8.7 1012.4 10 CLR CLR 370FEW399 68 54 15.2 0.0 0.454 20.8 93 05/21 09Z 52 47 283 3 0.00 0.00 569 578 17.9 -8.7 1011.8 11 CLR CLR 353FEW384 54 52 15.1 0.0 0.446 21.1 96 05/21 12Z 51 47 258 2 0.00 0.00 569 578 17.6 -8.9 1011.6 12 CLR CLR 353FEW406 54 51 15.1 0.0 0.464 20.9 99 05/21 15Z 58 47 236 1 0.00 0.00 569 579 17.2 -8.9 1012.2 62 CLR CLR 406BKN447 58 51 15.0 0.0 0.467 20.6 102 05/21 18Z 68 48 293 4 0.00 0.00 569 579 17.0 -9.3 1011.8 36 CLR CLR 401SCT439 68 51 15.2 0.0 0.495 20.3 105 05/21 21Z 70 49 302 10 0.00 0.00 570 579 17.4 -9.5 1010.5 10 CLR CLR 355FEW375 72 68 15.0 0.0 0.526 21.4 108 05/22 00Z 65 49 301 11 0.00 0.00 570 578 17.9 -9.7 1009.5 5 CLR CLR 349FEW368 72 63 15.0 0.0 0.578 21.9 111 05/22 03Z 57 49 315 6 0.00 0.00 570 578 18.2 -9.7 1010.1 0 CLR CLR CLR 65 57 15.0 0.0 0.460 21.8 114 05/22 06Z 53 49 303 2 0.00 0.00 570 578 18.9 -9.7 1010.1 0 CLR CLR CLR 65 53 15.1 0.0 0.426 21.1 117 05/22 09Z 53 49 316 4 0.00 0.00 569 577 18.9 -9.3 1009.7 0 CLR CLR CLR 54 53 15.1 0.0 0.436 20.4 120 05/22 12Z 52 48 303 1 0.00 0.00 568 576 18.4 -9.8 1009.3 15 CLR CLR 365FEW394 54 52 15.0 0.0 0.416 20.3 123 05/22 15Z 58 49 319 3 0.00 0.00 568 576 18.2 -10.0 1010.1 42 CLR CLR 370SCT433 57 52 15.0 0.0 0.409 19.6 126 05/22 18Z 67 49 299 5 0.00 0.00 569 577 17.9 -9.4 1009.8 30 CLR CLR 371SCT440 67 52 15.2 0.0 0.420 19.3 129 05/22 21Z 69 50 304 10 0.00 0.00 569 577 18.0 -9.8 1009.4 7 CLR CLR 423FEW437 70 67 15.2 0.0 0.459 19.9 132 05/23 00Z 66 50 301 10 0.00 0.00 570 577 18.2 -9.8 1008.7 6 CLR CLR 432FEW446 70 64 15.2 0.0 0.423 20.8 135 05/23 03Z 56 51 296 7 0.00 0.00 569 577 18.0 -10.0 1009.6 4 CLR CLR 436FEW426 66 56 13.3 0.0 0.411 20.3 138 05/23 06Z 52 49 293 3 0.00 0.00 568 578 18.3 -10.1 1011.1 6 CLR CLR 435FEW440 66 52 13.8 0.0 0.427 18.2 141 05/23 09Z 51 48 277 3 0.00 0.00 567 577 17.7 -10.5 1011.5 6 CLR CLR 432FEW454 52 51 15.1 0.0 0.450 14.7 144 05/23 12Z 49 47 210 1 0.00 0.00 567 576 17.5 -10.7 1011.5 9 010FEW014 CLR 425FEW457 52 49 15.1 0.0 0.457 14.8 147 05/23 15Z 54 47 260 2 0.00 0.00 566 577 16.4 -10.4 1013.1 12 CLR CLR 423FEW427 54 49 15.0 0.0 0.491 11.7 150 05/23 18Z 62 48 285 4 0.00 0.00 566 577 15.9 -10.0 1013.2 15 CLR CLR 416FEW439 62 49 15.0 0.0 0.508 10.9 153 05/23 21Z 64 49 270 11 0.00 0.00 567 578 15.8 -8.8 1013.0 6 CLR CLR 410FEW396 65 62 15.0 0.0 0.515 12.5 156 05/24 00Z 60 49 281 10 0.00 0.00 567 578 15.9 -8.4 1012.9 6 CLR CLR 412FEW396 65 59 15.0 0.0 0.483 13.4 159 05/24 03Z 55 49 283 7 0.00 0.00 567 578 16.6 -8.5 1013.0 4 CLR CLR 422FEW417 60 55 15.0 0.0 0.415 15.2 162 05/24 06Z 51 48 267 2 0.00 0.00 567 579 17.0 -8.9 1013.7 2 CLR CLR 430FEW394 60 51 13.4 0.0 0.435 14.9 165 05/24 09Z 50 48 182 2 0.00 0.00 567 578 17.0 -8.3 1012.7 6 CLR CLR 441FEW428 51 50 15.0 0.0 0.482 14.9 168 05/24 12Z 50 47 160 4 0.00 0.00 567 578 16.7 -7.9 1013.0 9 CLR CLR 432FEW435 51 50 15.0 0.0 0.483 15.7