Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 23JAN 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 01/23 12Z 49 47 242 0 0.00 0.00 554 566 10.8 -16.8 1014.5 65 000BKN000 CLR 000FEW000 **** **** 15.0 0.0 0.638 11.4 3 01/23 15Z 50 47 151 1 0.00 0.00 554 566 10.4 -16.3 1014.8 82 000BKN019 CLR 300FEW344 50 49 14.4 0.0 0.485 9.8 6 01/23 18Z 52 46 102 2 0.00 0.00 555 567 9.8 -16.5 1015.3 86 004BKN020 CLR CLR 53 49 15.0 0.0 0.466 9.8 9 01/23 21Z 57 46 311 4 0.00 0.00 555 566 9.0 -15.5 1013.5 37 012SCT020 CLR CLR 57 53 15.0 0.0 0.488 8.8 12 01/24 00Z 57 46 299 6 0.00 0.00 556 566 8.4 -15.0 1012.4 24 012FEW020 CLR 322FEW362 58 53 15.0 0.0 0.529 9.3 15 01/24 03Z 50 48 293 5 0.00 0.00 555 566 7.9 -15.5 1013.2 14 CLR CLR 308FEW351 57 50 15.0 0.0 0.571 10.1 18 01/24 06Z 50 47 280 2 0.00 0.00 555 566 7.7 -15.2 1013.7 11 CLR CLR 296FEW328 57 50 15.0 0.0 0.534 10.4 21 01/24 09Z 49 47 10 1 0.00 0.00 554 566 7.5 -15.6 1013.6 0 CLR CLR CLR 50 49 15.0 0.0 0.530 10.0 24 01/24 12Z 49 46 4 2 0.00 0.00 554 565 7.4 -15.6 1013.5 1 CLR CLR CLR 50 49 15.0 0.0 0.464 9.4 27 01/24 15Z 47 40 38 2 0.00 0.00 553 565 6.9 -15.6 1014.7 0 CLR CLR CLR 49 47 15.0 0.0 0.383 9.1 30 01/24 18Z 54 34 21 3 0.00 0.00 553 566 7.7 -15.6 1015.8 0 CLR CLR CLR 54 47 15.0 0.0 0.238 8.1 33 01/24 21Z 60 35 17 10 0.00 0.00 553 565 7.0 -15.6 1014.7 0 CLR CLR CLR 60 54 15.0 0.0 0.232 8.6 36 01/25 00Z 59 36 45 7 0.00 0.00 553 565 7.1 -15.6 1014.3 0 CLR CLR CLR 60 54 15.0 0.0 0.227 10.0 39 01/25 03Z 52 36 51 3 0.00 0.00 554 567 7.6 -16.1 1015.8 0 CLR CLR CLR 59 52 15.0 0.0 0.194 11.4 42 01/25 06Z 49 34 91 3 0.00 0.00 553 568 8.4 -16.7 1017.7 0 CLR CLR CLR 59 49 15.0 0.0 0.177 11.5 45 01/25 09Z 46 30 66 4 0.00 0.00 552 568 8.1 -17.2 1019.0 9 CLR CLR 309FEW353 49 47 15.0 0.0 0.175 11.3 48 01/25 12Z 45 29 67 3 0.00 0.00 552 568 7.5 -17.6 1019.3 54 CLR CLR 254BKN379 49 45 15.0 0.0 0.219 10.7 51 01/25 15Z 45 30 62 3 0.00 0.00 551 567 6.6 -18.8 1020.3 100 CLR 203BKN240 240OVC411 45 45 15.0 0.0 0.274 10.3 54 01/25 18Z 50 33 49 2 0.00 0.00 549 567 6.3 -19.4 1021.8 100 CLR 192BKN240 240OVC410 51 45 15.0 0.0 0.345 10.0 57 01/25 21Z 55 37 19 2 0.00 0.00 548 566 5.7 -19.7 1021.4 100 CLR 155OVC239 239OVC410 55 50 15.0 0.0 0.436 10.1 60 01/26 00Z 56 41 7 1 0.00 0.00 547 565 4.7 -17.9 1021.5 100 CLR 160OVC239 239OVC407 57 51 15.0 0.0 0.535 9.7 63 01/26 03Z 52 41 50 3 0.00 0.00 547 565 4.6 -18.4 1022.1 100 CLR 151OVC238 238OVC384 56 52 15.0 0.0 0.517 9.5 66 01/26 06Z 49 40 60 3 0.00 0.00 547 566 4.2 -18.7 1022.8 95 CLR 149BKN238 239BKN371 56 49 15.0 0.0 0.646 9.1 69 01/26 09Z 48 40 61 3 0.00 0.00 547 566 4.1 -19.1 1023.1 73 073FEW092 139BKN221 260SCT318 49 48 15.0 0.0 0.603 8.9 72 01/26 12Z 47 40 68 3 0.00 0.00 547 566 4.8 -19.2 1023.1 71 074FEW093 160BKN229 254SCT311 49 47 15.0 0.0 0.609 8.9 75 01/26 15Z 46 39 72 3 0.00 0.00 547 566 4.3 -19.6 1023.8 52 086FEW099 145SCT222 262FEW297 47 46 15.0 0.0 0.595 8.8 78 01/26 18Z 53 40 69 2 0.00 0.00 548 568 4.3 -18.0 1024.5 31 087FEW099 146SCT217 263FEW298 54 46 15.0 0.0 0.547 9.1 81 01/26 21Z 59 40 290 3 0.00 0.00 549 568 4.7 -16.2 1022.7 18 CLR 132FEW138 344FEW385 59 54 15.0 0.0 0.505 9.1 84 01/27 00Z 59 41 305 4 0.00 0.00 551 569 4.9 -15.9 1022.1 27 CLR CLR 348SCT385 60 54 15.0 0.0 0.518 9.7 87 01/27 03Z 53 41 58 1 0.00 0.00 552 570 5.5 -15.5 1022.4 22 CLR CLR 334FEW371 59 53 15.0 0.0 0.499 9.9 90 01/27 06Z 51 41 81 3 0.00 0.00 552 571 5.3 -15.3 1023.3 14 CLR CLR 340FEW374 59 51 15.0 0.0 0.511 9.7 93 01/27 09Z 49 41 90 3 0.00 0.00 552 571 5.4 -15.1 1023.0 6 CLR CLR 354FEW376 51 49 15.0 0.0 0.516 9.8 96 01/27 12Z 48 40 64 3 0.00 0.00 552 571 5.7 -15.1 1022.6 28 CLR CLR 366SCT399 51 48 15.0 0.0 0.476 9.5 99 01/27 15Z 46 39 69 4 0.00 0.00 552 571 5.9 -15.1 1022.6 61 CLR CLR 326BKN386 48 46 15.0 0.0 0.430 9.4 102 01/27 18Z 53 40 83 2 0.00 0.00 553 572 5.8 -14.9 1023.1 73 CLR CLR 323BKN392 54 46 15.0 0.0 0.426 9.5 105 01/27 21Z 59 40 243 1 0.00 0.00 553 571 6.2 -15.9 1021.1 82 CLR CLR 317BKN399 59 53 15.0 0.0 0.445 9.0 108 01/28 00Z 58 41 287 5 0.00 0.00 552 569 4.6 -16.3 1020.8 75 CLR CLR 323BKN397 60 53 15.0 0.0 0.503 9.4 111 01/28 03Z 53 43 119 1 0.00 0.00 550 568 4.6 -17.4 1022.1 99 CLR 194BKN231 330BKN389 58 52 15.0 0.0 0.622 8.7 114 01/28 06Z 52 47 160 5 0.00 0.00 547 566 2.7 -19.2 1023.1 100 CLR 187BKN235 299OVC364 58 52 15.0 0.0 0.786 7.6 117 01/28 09Z 51 48 258 6 0.11 0.01 542 561 0.6 -22.6 1023.8 100 -RA 008SCT115 147OVC196 236BKN358 52 51 4.1 0.0 0.787 5.5 120 01/28 12Z 51 48 277 7 0.11 0.04 538 558 0.9 -25.7 1024.9 100 -TSRA 000BKN108 138OVC199 235SCT357 52 50 7.3 0.0 0.660 5.6 123 01/28 15Z 49 45 286 3 0.01 0.01 538 560 1.3 -21.4 1026.8 23 047FEW099 CLR CLR 51 49 15.0 0.0 0.592 5.4 126 01/28 18Z 53 46 289 6 0.00 0.00 541 565 1.1 -21.2 1028.6 15 048FEW099 CLR CLR 53 49 15.0 0.0 0.581 4.5 129 01/28 21Z 55 45 283 7 0.00 0.00 543 566 1.6 -20.8 1028.0 11 026FEW033 CLR 250FEW276 56 53 15.0 0.0 0.499 5.3 132 01/29 00Z 55 44 286 7 0.00 0.00 544 567 1.6 -21.0 1027.7 10 034FEW040 CLR 252FEW283 56 53 15.0 0.0 0.523 6.0 135 01/29 03Z 51 45 290 5 0.00 0.00 545 569 1.6 -20.2 1028.1 3 CLR CLR 293FEW303 55 51 15.0 0.0 0.557 6.2 138 01/29 06Z 49 44 348 3 0.00 0.00 546 570 2.9 -19.9 1029.2 6 CLR CLR 275FEW293 55 49 15.0 0.0 0.590 6.5 141 01/29 09Z 47 43 43 2 0.00 0.00 549 571 4.0 -19.5 1027.4 33 CLR CLR 279SCT299 49 47 15.0 0.0 0.568 6.8 144 01/29 12Z 47 43 353 4 0.00 0.00 549 571 3.9 -18.6 1027.4 52 CLR CLR 266BKN297 49 46 15.0 0.0 0.595 6.5 147 01/29 15Z 46 42 17 2 0.00 0.00 550 572 5.6 -18.5 1027.1 23 CLR CLR 326FEW355 47 46 15.0 0.0 0.590 7.7 150 01/29 18Z 52 43 332 3 0.00 0.00 552 574 6.6 -17.1 1027.4 12 CLR CLR 333FEW360 53 46 15.0 0.0 0.562 8.2 153 01/29 21Z 57 41 320 6 0.00 0.00 553 575 8.5 -15.5 1025.4 9 CLR 222FEW241 343FEW365 57 52 15.0 0.0 0.548 9.2 156 01/30 00Z 57 43 300 6 0.00 0.00 555 575 10.0 -16.5 1023.7 41 CLR 220FEW238 300SCT338 59 52 15.0 0.0 0.594 10.0 159 01/30 03Z 52 44 294 3 0.00 0.00 556 576 10.0 -15.9 1024.1 38 CLR 200FEW216 257SCT308 58 51 15.0 0.0 0.617 11.8 162 01/30 06Z 52 45 85 1 0.00 0.00 557 577 10.1 -15.5 1024.3 36 CLR 200FEW216 295SCT338 58 51 15.0 0.0 0.660 12.4 165 01/30 09Z 51 45 40 1 0.00 0.00 557 577 10.1 -15.8 1024.2 100 CLR 192FEW219 301OVC358 52 51 15.0 0.0 0.675 12.2 168 01/30 12Z 51 44 89 3 0.00 0.00 558 578 11.4 -15.7 1023.5 84 CLR 189SCT241 301BKN349 52 50 15.0 0.0 0.645 12.7