Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 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 00Z 71 30 346 17 0.00 0.00 561 569 9.0 -8.6 1009.0 13 CLR CLR 000FEW000 **** **** 15.0 0.0 0.340 15.7 3 05/18 03Z 67 26 1 18 0.00 0.00 560 569 8.8 -9.2 1009.6 22 CLR CLR 437FEW346 71 67 15.0 0.0 0.264 15.3 6 05/18 06Z 65 26 359 17 0.00 0.00 560 569 8.4 -9.6 1010.6 11 CLR CLR 437FEW382 71 65 15.0 0.0 0.192 15.0 9 05/18 09Z 63 27 352 17 0.00 0.00 560 569 8.7 -9.5 1010.6 0 CLR CLR CLR 65 63 15.0 0.0 0.199 15.0 12 05/18 12Z 61 29 358 18 0.00 0.00 560 569 8.7 -11.6 1011.6 0 CLR CLR CLR 65 61 15.0 0.0 0.219 13.1 15 05/18 15Z 64 32 9 12 0.00 0.00 558 569 8.1 -13.0 1013.1 0 CLR CLR CLR 64 61 15.0 0.0 0.223 12.1 18 05/18 18Z 70 32 27 12 0.00 0.00 558 570 7.7 -13.0 1014.0 0 CLR CLR CLR 70 61 15.0 0.0 0.229 14.2 21 05/18 21Z 76 33 346 9 0.00 0.00 559 570 11.0 -13.9 1013.0 0 CLR CLR CLR 75 70 15.0 0.0 0.264 17.8 24 05/19 00Z 70 41 273 10 0.00 0.00 559 570 13.3 -15.0 1012.5 0 CLR CLR CLR 77 68 15.0 0.0 0.316 19.1 27 05/19 03Z 59 45 236 3 0.00 0.00 559 570 14.0 -15.8 1012.7 0 CLR CLR CLR 70 59 15.0 0.0 0.327 19.7 30 05/19 06Z 55 44 189 4 0.00 0.00 560 572 14.3 -15.5 1014.0 0 CLR CLR CLR 70 55 15.0 0.0 0.344 20.3 33 05/19 09Z 54 45 230 2 0.00 0.00 560 572 14.4 -15.7 1013.9 0 CLR CLR CLR 55 54 15.0 0.0 0.323 20.0 36 05/19 12Z 54 44 354 1 0.00 0.00 560 572 14.1 -15.6 1014.0 0 CLR CLR CLR 55 53 15.0 0.0 0.315 19.6 39 05/19 15Z 61 42 114 1 0.00 0.00 560 573 14.0 -14.2 1015.4 0 CLR CLR CLR 61 54 15.0 0.0 0.316 18.7 42 05/19 18Z 72 42 306 3 0.00 0.00 562 575 14.0 -13.2 1015.6 0 CLR CLR CLR 72 53 15.0 0.0 0.349 18.4 45 05/19 21Z 75 41 282 7 0.00 0.00 564 576 14.0 -12.9 1014.7 2 CLR CLR 405FEW417 76 71 15.0 0.0 0.410 20.5 48 05/20 00Z 70 42 285 10 0.00 0.00 565 576 15.1 -13.3 1013.7 3 CLR CLR 378FEW389 79 67 15.0 0.0 0.465 21.1 51 05/20 03Z 60 44 275 5 0.00 0.00 565 577 15.4 -13.0 1014.3 7 CLR CLR 336FEW353 70 60 15.1 0.0 0.467 20.5 54 05/20 06Z 55 46 222 3 0.00 0.00 565 577 15.8 -12.8 1014.5 7 CLR CLR 349FEW372 70 55 15.0 0.0 0.476 20.9 57 05/20 09Z 54 46 240 2 0.00 0.00 564 576 16.0 -12.9 1014.0 100 CLR CLR 307OVC386 55 54 15.0 0.0 0.499 20.5 60 05/20 12Z 52 47 226 2 0.00 0.00 564 575 15.8 -13.6 1013.3 91 CLR CLR 297BKN399 55 52 15.0 0.0 0.514 20.1 63 05/20 15Z 57 47 219 2 0.00 0.00 564 575 15.5 -13.4 1013.7 100 CLR 220FEW244 247OVC393 58 53 15.0 0.0 0.521 19.8 66 05/20 18Z 68 47 291 4 0.00 0.00 564 575 15.3 -13.5 1013.2 55 CLR 218FEW241 248BKN390 68 52 15.2 0.0 0.534 19.5 69 05/20 21Z 71 48 299 9 0.00 0.00 565 576 15.8 -12.5 1012.0 2 CLR 198FEW207 363FEW374 72 68 15.2 0.0 0.566 20.2 72 05/21 00Z 65 48 296 11 0.00 0.00 566 576 16.4 -10.5 1011.0 6 CLR CLR 341FEW365 73 64 15.2 0.0 0.575 20.9 75 05/21 03Z 56 48 273 4 0.00 0.00 567 577 16.5 -9.7 1012.0 0 CLR CLR CLR 65 56 15.4 0.0 0.556 20.1 78 05/21 06Z 53 48 248 3 0.00 0.00 568 578 17.6 -9.9 1012.4 18 CLR CLR 395FEW417 65 53 15.0 0.0 0.533 19.6 81 05/21 09Z 52 48 231 2 0.00 0.00 568 578 17.5 -9.2 1011.7 11 CLR CLR 365FEW392 53 52 14.7 0.0 0.543 19.6 84 05/21 12Z 51 47 210 1 0.00 0.00 568 578 17.3 -9.0 1011.5 12 CLR CLR 360FEW387 53 51 15.0 0.0 0.538 19.9 87 05/21 15Z 57 47 289 2 0.00 0.00 569 579 17.2 -9.0 1012.1 9 CLR CLR 312FEW341 57 51 15.0 0.0 0.523 20.2 90 05/21 18Z 66 49 293 4 0.00 0.00 569 579 17.1 -9.3 1011.7 9 CLR CLR 304FEW336 67 51 15.2 0.0 0.539 19.6 93 05/21 21Z 70 50 307 9 0.00 0.00 570 579 17.5 -9.4 1010.3 8 CLR CLR 276FEW319 71 66 15.1 0.0 0.525 21.2 96 05/22 00Z 66 50 301 11 0.00 0.00 570 578 17.9 -9.6 1009.6 6 CLR CLR 276FEW307 72 63 15.0 0.0 0.521 21.0 99 05/22 03Z 58 49 310 7 0.00 0.00 569 578 18.1 -9.9 1009.9 2 CLR CLR 256FEW269 65 58 15.1 0.0 0.510 21.0 102 05/22 06Z 54 48 289 3 0.00 0.00 569 577 18.4 -10.1 1010.0 1 CLR CLR 255FEW269 65 54 15.0 0.0 0.499 20.3 105 05/22 09Z 52 49 262 2 0.00 0.00 568 576 18.1 -10.1 1009.4 0 CLR CLR CLR 54 52 15.0 0.0 0.526 20.0 108 05/22 12Z 51 48 272 2 0.00 0.00 568 575 18.2 -10.6 1009.0 0 CLR CLR 392FEW406 54 51 14.9 0.0 0.499 19.9 111 05/22 15Z 56 49 272 2 0.00 0.00 567 575 18.0 -10.5 1009.9 11 CLR CLR 344FEW428 57 51 14.9 0.0 0.503 18.8 114 05/22 18Z 65 49 289 3 0.00 0.00 567 576 17.4 -10.6 1009.8 51 CLR CLR 345BKN442 66 51 15.2 0.0 0.498 18.3 117 05/22 21Z 66 50 301 10 0.00 0.00 568 576 17.7 -9.9 1009.4 69 CLR CLR 338BKN442 69 64 15.0 0.0 0.525 19.7 120 05/23 00Z 63 50 301 10 0.00 0.00 568 576 17.5 -9.6 1008.8 84 CLR CLR 324BKN451 69 61 15.0 0.0 0.505 19.8 123 05/23 03Z 56 50 301 6 0.00 0.00 568 576 17.6 -9.5 1009.4 100 CLR CLR 330OVC457 63 57 15.0 0.0 0.477 19.6 126 05/23 06Z 53 50 307 2 0.00 0.00 567 576 17.9 -9.7 1010.7 84 CLR CLR 335BKN441 63 53 13.5 0.0 0.506 17.4 129 05/23 09Z 52 49 269 1 0.00 0.00 566 576 17.5 -10.0 1010.9 8 CLR CLR 387FEW405 53 52 13.6 0.0 0.501 15.6 132 05/23 12Z 51 49 175 1 0.00 0.00 566 575 17.2 -10.8 1011.2 11 CLR CLR 394FEW425 53 51 15.1 0.0 0.469 15.3 135 05/23 15Z 55 49 173 3 0.00 0.00 565 575 16.9 -11.4 1012.5 12 CLR CLR 414FEW439 55 50 15.0 0.0 0.451 14.3 138 05/23 18Z 64 48 286 4 0.00 0.00 565 576 16.3 -11.9 1013.1 27 CLR CLR 420SCT439 64 50 15.0 0.0 0.475 11.7 141 05/23 21Z 65 49 288 9 0.00 0.00 566 577 16.8 -11.9 1013.0 52 CLR CLR 419BKN456 67 64 15.0 0.0 0.524 14.4 144 05/24 00Z 63 48 293 12 0.00 0.00 566 577 16.8 -11.4 1012.6 30 CLR CLR 418SCT455 67 61 15.0 0.0 0.491 16.6 147 05/24 03Z 56 49 303 8 0.00 0.00 566 577 17.3 -11.1 1013.5 6 CLR CLR 409FEW432 62 56 15.0 0.0 0.473 17.1 150 05/24 06Z 53 49 305 4 0.00 0.00 566 579 17.1 -10.7 1015.1 3 CLR CLR 409FEW432 62 53 15.0 0.0 0.543 16.4 153 05/24 09Z 52 48 311 2 0.00 0.00 566 578 17.3 -10.7 1014.4 1 CLR CLR CLR 53 52 15.0 0.0 0.560 18.0 156 05/24 12Z 51 48 306 2 0.00 0.00 566 578 17.1 -10.5 1014.9 5 CLR CLR 420FEW432 53 51 15.0 0.0 0.551 17.4 159 05/24 15Z 56 49 296 3 0.00 0.00 566 579 17.1 -10.4 1016.4 6 CLR CLR 418FEW437 56 51 15.0 0.0 0.598 16.9 162 05/24 18Z 65 50 296 5 0.00 0.00 566 580 17.3 -10.6 1016.2 3 CLR CLR 418FEW437 65 51 15.0 0.0 0.601 17.9 165 05/24 21Z 67 50 298 10 0.00 0.00 567 581 17.7 -10.9 1015.6 0 CLR CLR CLR 68 65 15.0 0.0 0.585 19.2 168 05/25 00Z 63 49 295 10 0.00 0.00 567 581 18.2 -11.5 1015.7 0 CLR CLR CLR 68 62 15.0 0.0 0.602 19.5