Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 27DEC 2025 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 12/27 12Z 49 45 304 7 0.00 0.00 541 556 1.5 -23.2 1018.9 4 000FEW000 CLR CLR **** **** 15.0 0.0 0.493 5.1 3 12/27 15Z 48 44 318 7 0.00 0.00 542 559 0.7 -22.5 1020.3 1 FEW CLR CLR 49 48 15.0 0.0 0.438 4.7 6 12/27 18Z 51 44 345 3 0.00 0.00 543 562 1.4 -22.5 1022.5 1 CLR CLR CLR 52 47 15.0 0.0 0.427 4.5 9 12/27 21Z 53 43 350 4 0.00 0.00 545 562 1.7 -22.0 1021.3 21 025FEW037 CLR CLR 54 51 15.0 0.0 0.461 5.0 12 12/28 00Z 53 43 30 6 0.00 0.00 546 564 3.3 -21.5 1021.3 55 027BKN042 CLR CLR 55 51 15.0 0.0 0.439 4.8 15 12/28 03Z 52 43 11 6 0.00 0.00 547 566 3.9 -20.1 1023.6 95 024BKN044 CLR CLR 53 52 15.0 0.0 0.402 5.2 18 12/28 06Z 47 42 85 3 0.00 0.00 550 569 5.8 -16.9 1023.5 54 024SCT044 CLR 367FEW390 53 48 15.0 0.0 0.345 6.2 21 12/28 09Z 47 41 3 3 0.00 0.00 551 571 5.6 -16.2 1024.4 89 CLR CLR 322BKN388 48 46 15.0 0.0 0.364 6.0 24 12/28 12Z 46 40 60 2 0.00 0.00 553 573 7.1 -16.6 1024.5 95 CLR CLR 290BKN389 48 46 15.0 0.0 0.396 6.5 27 12/28 15Z 45 39 58 1 0.00 0.00 552 573 7.2 -16.0 1025.3 93 CLR 195BKN240 257BKN381 46 45 15.0 0.0 0.424 6.5 30 12/28 18Z 50 38 95 2 0.00 0.00 553 575 8.2 -15.6 1026.4 95 CLR 196SCT240 286BKN373 50 45 15.0 0.0 0.397 8.0 33 12/28 21Z 55 34 356 4 0.00 0.00 554 574 8.3 -16.1 1024.3 67 CLR CLR 323BKN365 55 50 15.0 0.0 0.372 7.4 36 12/29 00Z 54 36 23 7 0.00 0.00 555 575 8.5 -17.0 1024.0 35 CLR CLR 324SCT366 57 50 15.0 0.0 0.318 7.8 39 12/29 03Z 48 35 31 4 0.00 0.00 557 576 9.4 -15.9 1024.1 0 CLR CLR CLR 54 48 15.0 0.0 0.316 9.2 42 12/29 06Z 47 35 38 4 0.00 0.00 558 578 9.1 -14.6 1024.5 0 CLR CLR CLR 54 47 15.0 0.0 0.347 9.0 45 12/29 09Z 46 36 55 4 0.00 0.00 559 578 9.7 -14.0 1024.1 3 CLR CLR 393FEW411 47 46 15.0 0.0 0.359 10.1 48 12/29 12Z 45 37 51 4 0.00 0.00 559 579 11.3 -13.7 1023.7 6 CLR CLR 392FEW415 47 45 15.0 0.0 0.346 10.9 51 12/29 15Z 43 37 22 4 0.00 0.00 560 579 11.9 -12.2 1024.1 2 CLR CLR 339FEW354 45 43 15.0 0.0 0.361 10.7 54 12/29 18Z 49 37 56 3 0.00 0.00 561 581 11.3 -11.6 1025.2 1 CLR CLR 339FEW354 50 43 15.0 0.0 0.385 11.5 57 12/29 21Z 56 38 345 1 0.00 0.00 561 581 11.1 -11.6 1023.3 4 CLR CLR 360FEW371 56 49 15.0 0.0 0.425 11.7 60 12/30 00Z 56 42 9 2 0.00 0.00 562 581 11.9 -11.9 1022.1 5 CLR CLR 393FEW406 58 49 15.0 0.0 0.454 12.4 63 12/30 03Z 50 41 55 3 0.00 0.00 563 582 12.7 -11.7 1022.5 4 CLR CLR 412FEW442 56 50 15.0 0.0 0.473 12.5 66 12/30 06Z 48 40 54 3 0.00 0.00 563 582 13.3 -12.4 1022.8 3 CLR CLR 411FEW438 56 48 15.0 0.0 0.498 13.0 69 12/30 09Z 47 39 51 3 0.00 0.00 563 581 12.5 -12.3 1022.3 6 CLR CLR 381FEW403 48 47 15.0 0.0 0.500 12.9 72 12/30 12Z 46 38 57 3 0.00 0.00 563 581 12.5 -12.2 1021.9 4 CLR CLR 387FEW407 48 46 15.0 0.0 0.512 13.3 75 12/30 15Z 45 36 53 3 0.00 0.00 563 581 12.0 -12.0 1022.5 1 CLR CLR 407FEW418 46 45 15.0 0.0 0.506 13.1 78 12/30 18Z 52 36 61 2 0.00 0.00 563 582 12.3 -11.8 1023.3 1 CLR CLR CLR 52 45 15.0 0.0 0.504 13.4 81 12/30 21Z 58 38 335 3 0.00 0.00 564 581 12.5 -11.3 1020.9 0 CLR CLR CLR 58 52 15.0 0.0 0.514 13.5 84 12/31 00Z 57 42 13 2 0.00 0.00 565 581 13.4 -11.2 1018.8 0 CLR CLR CLR 60 52 15.0 0.0 0.482 14.5 87 12/31 03Z 51 42 60 3 0.00 0.00 565 581 13.5 -11.2 1019.5 0 CLR CLR CLR 57 51 15.0 0.0 0.413 14.7 90 12/31 06Z 50 40 70 3 0.00 0.00 564 581 12.5 -11.2 1020.3 0 CLR CLR CLR 57 50 15.0 0.0 0.409 13.7 93 12/31 09Z 49 39 55 3 0.00 0.00 564 581 12.6 -11.7 1019.7 0 CLR CLR CLR 50 49 15.0 0.0 0.422 13.4 96 12/31 12Z 48 38 69 3 0.00 0.00 565 580 14.1 -11.4 1018.3 20 CLR CLR 383FEW451 50 48 15.0 0.0 0.405 15.1 99 12/31 15Z 46 38 50 3 0.00 0.00 564 579 13.3 -11.4 1019.3 33 CLR CLR 385SCT437 48 46 15.0 0.0 0.405 14.0 102 12/31 18Z 53 39 123 2 0.00 0.00 564 580 12.4 -11.1 1019.4 33 CLR CLR 382SCT425 53 46 15.0 0.0 0.389 13.5 105 12/31 21Z 60 41 321 3 0.00 0.00 563 578 12.7 -11.0 1017.6 59 CLR CLR 394BKN425 60 53 15.0 0.0 0.379 13.7 108 01/01 00Z 59 43 258 2 0.00 0.00 563 577 11.3 -11.3 1016.9 37 CLR CLR 395SCT425 62 53 15.0 0.0 0.382 13.6 111 01/01 03Z 54 42 80 3 0.00 0.00 562 576 12.1 -11.1 1016.7 81 CLR CLR 366BKN438 59 54 15.0 0.0 0.286 14.6 114 01/01 06Z 52 41 102 2 0.00 0.00 562 576 11.5 -10.9 1017.1 90 CLR CLR 336BKN428 59 52 15.0 0.0 0.293 14.1 117 01/01 09Z 51 40 65 3 0.00 0.00 560 574 11.6 -11.9 1016.3 100 CLR CLR 283OVC452 52 51 15.0 0.0 0.318 13.9 120 01/01 12Z 51 40 66 3 0.00 0.00 558 571 10.3 -13.8 1016.0 100 CLR 210FEW242 262OVC452 52 51 15.0 0.0 0.426 13.8 123 01/01 15Z 51 40 345 2 0.00 0.00 557 570 9.0 -12.1 1016.7 100 CLR 150OVC242 248OVC423 51 51 15.0 0.0 0.761 11.9 126 01/01 18Z 54 41 45 2 0.00 0.00 556 571 8.1 -12.6 1017.7 100 087FEW119 140OVC233 249OVC425 54 51 15.0 0.0 0.851 10.6 129 01/01 21Z 55 42 1 1 0.00 0.00 556 569 6.5 -12.7 1015.6 100 077BKN119 119OVC233 241OVC423 57 54 15.0 0.0 0.996 10.9 132 01/02 00Z 53 41 24 2 0.00 0.00 556 568 6.6 -13.0 1014.7 100 057BKN119 122OVC228 243OVC416 57 53 15.0 0.0 1.096 9.8 135 01/02 03Z 52 42 19 3 0.01 0.00 556 569 6.6 -13.7 1015.3 100 -RA 035OVC119 119BKN207 259BKN311 54 52 15.0 0.0 1.086 9.9 138 01/02 06Z 52 42 69 3 0.00 0.00 556 568 7.1 -13.7 1015.3 100 -RA 035OVC119 119BKN195 295BKN344 54 52 15.0 0.0 0.961 9.9 141 01/02 09Z 52 41 67 3 0.00 0.00 556 567 8.0 -13.4 1014.3 100 031OVC081 CLR 316BKN415 52 52 15.0 0.0 0.941 10.3 144 01/02 12Z 52 43 71 4 0.00 0.00 556 567 8.5 -13.8 1013.1 100 026OVC084 CLR 282BKN415 52 52 15.1 0.0 1.165 11.0 147 01/02 15Z 50 47 68 3 0.16 0.00 556 567 8.3 -14.5 1013.2 100 RA 011OVC117 153BKN197 241OVC410 52 50 3.4 0.0 1.316 10.7 150 01/02 18Z 54 52 130 8 0.31 0.00 556 569 8.3 -15.0 1014.8 100 RA 007OVC119 140BKN216 243OVC406 54 50 6.5 0.0 1.357 11.0 153 01/02 21Z 55 54 106 4 0.09 0.00 556 568 8.4 -15.2 1014.4 100 -RA 000OVC120 124BKN234 260OVC392 55 54 13.8 0.0 1.326 11.0 156 01/03 00Z 55 54 73 4 0.04 0.00 556 568 8.3 -15.1 1014.8 100 -RA 000OVC120 124BKN204 256OVC392 56 53 14.4 0.0 1.225 10.8 159 01/03 03Z 55 54 95 3 0.02 0.00 556 569 7.9 -15.8 1016.1 100 -RA 000OVC105 202BKN220 244OVC398 55 55 15.0 0.0 1.145 10.7 162 01/03 06Z 55 53 58 3 0.02 0.00 556 569 7.9 -15.7 1016.6 100 -RA 000OVC086 213BKN229 242OVC394 56 55 14.9 0.0 1.108 10.8 165 01/03 09Z 55 53 50 3 0.04 0.00 555 569 8.3 -15.7 1016.4 100 -RA 000OVC078 209BKN241 241OVC387 55 55 11.7 0.0 1.095 11.0 168 01/03 12Z 55 53 49 3 0.06 0.00 555 569 8.1 -16.1 1016.4 100 -RA 000OVC084 209BKN240 243BKN388 55 55 15.0 0.0 1.243 11.2