Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 21SEP 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 09/21 12Z 58 52 230 5 0.00 0.00 565 576 18.0 -15.0 1013.8 96 000OVC000 000FEW000 000FEW000 **** **** 15.0 0.0 0.619 10.4 3 09/21 15Z 58 52 234 5 0.00 0.00 565 577 17.6 -14.8 1014.5 100 000OVC026 195FEW221 FEW 58 58 15.0 0.0 0.621 9.9 6 09/21 18Z 62 52 241 6 0.00 0.00 565 577 17.5 -14.5 1014.5 97 000BKN027 188FEW209 FEW 63 58 15.0 0.0 0.683 10.4 9 09/21 21Z 67 54 259 10 0.00 0.00 566 577 17.7 -14.2 1013.1 10 020FEW025 181FEW190 CLR 67 63 15.0 0.0 0.627 13.3 12 09/22 00Z 62 54 259 11 0.00 0.00 566 577 17.6 -13.8 1013.2 5 020FEW025 CLR CLR 67 62 15.0 0.0 0.640 12.3 15 09/22 03Z 58 53 260 6 0.00 0.00 566 578 17.5 -13.2 1013.7 29 013SCT023 CLR CLR 62 58 14.5 0.0 0.677 16.2 18 09/22 06Z 56 53 252 4 0.00 0.00 567 578 19.0 -12.6 1013.8 37 012SCT020 CLR CLR 62 56 13.5 0.0 0.741 15.2 21 09/22 09Z 57 52 161 6 0.00 0.00 567 578 18.7 -12.7 1013.0 76 011BKN021 CLR 281FEW309 58 56 14.4 0.0 0.759 17.0 24 09/22 12Z 54 52 157 4 0.00 0.00 567 578 19.0 -11.5 1012.7 48 011SCT021 CLR 278FEW300 58 54 15.0 0.0 0.808 16.7 27 09/22 15Z 57 52 173 3 0.00 0.00 568 579 19.1 -11.2 1013.5 0 CLR CLR CLR 57 54 15.0 0.0 0.793 16.5 30 09/22 18Z 66 53 246 2 0.00 0.00 569 580 18.9 -9.9 1013.5 0 CLR CLR CLR 66 54 15.0 0.0 0.764 18.0 33 09/22 21Z 71 54 286 7 0.00 0.00 570 580 19.5 -9.6 1011.7 1 FEW CLR CLR 72 66 15.0 0.0 0.729 18.6 36 09/23 00Z 65 54 283 8 0.00 0.00 571 580 19.8 -9.4 1010.9 2 CLR CLR 362FEW373 72 63 15.2 0.0 0.688 20.3 39 09/23 03Z 58 53 215 4 0.00 0.00 571 581 20.2 -9.1 1011.6 2 CLR CLR 353FEW366 65 58 13.5 0.0 0.605 21.0 42 09/23 06Z 57 54 190 5 0.00 0.00 572 582 20.2 -8.8 1011.7 4 FEW CLR 347FEW360 65 57 15.0 0.0 0.609 21.3 45 09/23 09Z 56 53 185 4 0.00 0.00 572 581 20.4 -8.5 1011.2 1 CLR CLR CLR 57 56 15.0 0.0 0.554 22.0 48 09/23 12Z 56 52 179 2 0.00 0.00 572 581 20.3 -7.9 1011.3 0 CLR CLR CLR 57 56 15.0 0.0 0.541 21.5 51 09/23 15Z 59 51 138 3 0.00 0.00 572 583 19.8 -7.9 1012.2 0 CLR CLR CLR 59 55 15.0 0.0 0.525 20.9 54 09/23 18Z 71 52 302 4 0.00 0.00 573 584 19.6 -7.1 1012.2 0 CLR CLR CLR 71 55 15.0 0.0 0.523 20.9 57 09/23 21Z 76 54 289 8 0.00 0.00 575 584 19.7 -7.5 1011.0 3 CLR CLR 384FEW403 76 71 15.0 0.0 0.542 22.2 60 09/24 00Z 71 53 290 7 0.00 0.00 575 584 20.5 -7.7 1009.9 3 CLR CLR 396FEW412 77 70 15.0 0.0 0.542 24.6 63 09/24 03Z 62 52 267 3 0.00 0.00 575 584 20.7 -8.2 1010.4 23 CLR CLR 390FEW428 72 62 15.0 0.0 0.545 24.0 66 09/24 06Z 60 52 215 2 0.00 0.00 574 584 20.7 -8.3 1011.2 18 CLR CLR 389FEW424 72 60 15.0 0.0 0.592 23.5 69 09/24 09Z 60 51 181 2 0.00 0.00 574 583 20.6 -8.7 1011.0 5 CLR CLR 384FEW401 60 60 15.0 0.0 0.566 24.0 72 09/24 12Z 58 51 291 4 0.00 0.00 573 582 20.8 -8.6 1011.2 5 CLR CLR 378FEW398 60 58 15.0 0.0 0.559 23.0 75 09/24 15Z 60 52 216 2 0.00 0.00 572 582 20.0 -9.1 1012.0 5 CLR CLR 391FEW413 60 57 15.0 0.0 0.573 22.8 78 09/24 18Z 71 52 281 4 0.00 0.00 572 582 19.7 -9.5 1012.7 16 CLR CLR 384FEW429 71 57 15.0 0.0 0.653 22.1 81 09/24 21Z 71 52 284 9 0.00 0.00 571 582 19.6 -9.6 1012.4 39 CLR CLR 367SCT411 74 70 15.0 0.0 0.618 21.8 84 09/25 00Z 66 51 269 7 0.00 0.00 570 581 18.8 -10.4 1012.6 69 CLR CLR 344BKN425 75 65 15.0 0.0 0.694 20.9 87 09/25 03Z 60 52 247 4 0.00 0.00 570 581 18.0 -10.7 1013.5 100 CLR CLR 272OVC421 66 60 15.0 0.0 0.739 19.9 90 09/25 06Z 60 53 239 5 0.00 0.00 569 581 17.1 -10.6 1014.1 88 CLR 218FEW246 263BKN393 66 59 15.0 0.0 0.913 18.4 93 09/25 09Z 59 57 230 4 0.00 0.00 568 581 16.3 -10.5 1014.4 38 CLR 208SCT245 340FEW376 60 59 15.0 0.0 1.007 16.6 96 09/25 12Z 58 57 262 6 0.00 0.00 568 580 16.5 -9.7 1014.6 39 005FEW014 208FEW245 358FEW387 60 58 15.2 0.0 0.913 17.3 99 09/25 15Z 59 55 236 4 0.00 0.00 567 580 16.8 -9.3 1015.4 89 006BKN016 CLR 388SCT427 59 58 15.0 0.0 0.901 17.7 102 09/25 18Z 66 53 246 4 0.00 0.00 568 581 16.4 -8.1 1015.7 70 007BKN016 CLR 377SCT422 66 58 15.0 0.0 0.802 17.7 105 09/25 21Z 69 53 277 7 0.00 0.00 570 582 16.6 -7.5 1014.2 20 CLR CLR 353FEW400 70 66 15.2 0.0 0.681 19.1 108 09/26 00Z 65 53 268 6 0.00 0.00 571 582 17.2 -7.4 1013.1 17 CLR CLR 346FEW384 70 64 15.0 0.0 0.566 19.7 111 09/26 03Z 57 52 220 4 0.00 0.00 571 582 17.4 -7.0 1013.6 5 CLR CLR 396FEW414 64 57 13.6 0.0 0.476 20.2 114 09/26 06Z 56 52 201 4 0.00 0.00 571 583 17.5 -6.9 1013.8 4 FEW CLR 396FEW415 64 56 13.5 0.0 0.453 20.0 117 09/26 09Z 55 51 198 3 0.00 0.00 571 582 17.8 -7.7 1012.7 1 CLR CLR CLR 56 55 15.0 0.0 0.456 20.1 120 09/26 12Z 54 50 186 2 0.00 0.00 571 581 17.5 -8.3 1012.6 4 CLR CLR 384FEW399 56 54 15.0 0.0 0.479 20.0 123 09/26 15Z 56 51 226 1 0.00 0.00 570 581 17.5 -8.7 1013.2 58 CLR CLR 300BKN399 56 54 15.0 0.0 0.535 18.8 126 09/26 18Z 66 50 250 3 0.00 0.00 570 582 17.1 -8.5 1013.7 79 CLR CLR 283BKN391 66 54 15.0 0.0 0.534 18.4 129 09/26 21Z 71 50 287 7 0.00 0.00 571 581 17.4 -8.8 1012.6 72 CLR CLR 289BKN390 71 66 15.0 0.0 0.507 18.4 132 09/27 00Z 64 51 284 8 0.00 0.00 570 580 17.6 -9.1 1012.2 86 CLR CLR 312BKN380 71 63 15.0 0.0 0.477 19.1 135 09/27 03Z 56 52 271 6 0.00 0.00 569 580 17.6 -9.6 1013.5 46 CLR CLR 282SCT316 64 56 13.5 0.0 0.514 17.8 138 09/27 06Z 55 51 241 4 0.00 0.00 568 580 17.0 -10.1 1014.4 70 014FEW015 CLR 275BKN325 64 55 13.5 0.0 0.533 15.6 141 09/27 09Z 54 50 207 5 0.00 0.00 567 579 16.6 -10.6 1014.0 71 014FEW017 CLR 258BKN307 55 54 13.7 0.0 0.530 15.6 144 09/27 12Z 53 49 235 6 0.00 0.00 566 577 15.6 -10.6 1014.1 44 015FEW017 CLR 260SCT307 55 53 15.0 0.0 0.483 14.6 147 09/27 15Z 55 49 248 6 0.00 0.00 564 577 14.2 -10.9 1015.3 5 CLR CLR 278FEW296 55 53 15.0 0.0 0.488 14.5 150 09/27 18Z 63 47 267 8 0.00 0.00 564 577 13.4 -11.5 1016.1 32 CLR CLR 268SCT315 63 53 15.0 0.0 0.422 14.7 153 09/27 21Z 66 51 270 10 0.00 0.00 564 577 13.0 -11.6 1015.5 0 CLR CLR CLR 66 63 15.0 0.0 0.907 13.7 156 09/28 00Z 64 56 271 10 0.00 0.00 565 577 12.5 -11.4 1014.7 0 CLR CLR CLR 66 63 15.0 0.0 0.905 14.7 159 09/28 03Z 59 57 267 7 0.00 0.00 565 578 12.7 -11.3 1015.1 26 007SCT014 CLR CLR 64 59 14.5 0.0 0.715 15.5 162 09/28 06Z 59 56 252 5 0.00 0.00 565 578 13.9 -11.1 1015.1 57 005BKN014 CLR CLR 64 58 15.0 0.0 0.453 16.0 165 09/28 09Z 56 54 195 3 0.00 0.00 566 578 13.4 -10.8 1014.6 31 009SCT014 CLR CLR 59 56 15.0 0.0 0.585 15.4 168 09/28 12Z 55 53 187 1 0.00 0.00 567 578 13.5 -8.6 1013.9 21 008FEW013 CLR CLR 59 55 15.0 0.0 0.602 16.4