Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 21MAR 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 03/21 12Z 57 52 295 4 0.00 0.00 570 581 20.1 -10.7 1012.6 100 CLR CLR 000OVC000 **** **** 15.1 0.0 0.551 22.1 3 03/21 15Z 57 52 239 2 0.00 0.00 569 580 19.1 -11.4 1014.1 100 CLR CLR 286OVC397 57 55 15.0 0.0 0.522 21.0 6 03/21 18Z 66 52 299 4 0.00 0.00 568 581 18.6 -11.1 1015.1 100 CLR CLR 279OVC393 66 55 15.0 0.0 0.502 20.4 9 03/21 21Z 71 52 268 5 0.00 0.00 568 581 18.4 -11.9 1014.7 100 CLR CLR 319OVC397 71 66 15.2 0.0 0.571 20.7 12 03/22 00Z 67 52 242 5 0.00 0.00 568 580 17.8 -11.7 1014.1 94 CLR CLR 303BKN364 72 66 15.0 0.0 0.620 20.0 15 03/22 03Z 58 49 235 5 0.00 0.00 568 580 17.6 -11.9 1014.6 0 CLR CLR CLR 68 58 15.0 0.0 0.575 20.3 18 03/22 06Z 54 47 195 4 0.00 0.00 568 581 18.6 -11.8 1015.4 1 CLR CLR CLR 68 54 15.0 0.0 0.398 19.8 21 03/22 09Z 51 47 183 4 0.00 0.00 568 580 18.4 -11.2 1014.8 5 CLR CLR 385FEW404 53 51 15.0 0.0 0.303 19.6 24 03/22 12Z 51 46 172 1 0.00 0.00 567 580 17.1 -11.5 1014.8 17 CLR CLR 305FEW349 53 50 15.0 0.0 0.488 17.2 27 03/22 15Z 54 46 237 1 0.00 0.00 567 580 16.3 -10.8 1015.2 50 CLR CLR 259SCT318 54 51 15.0 0.0 0.557 17.9 30 03/22 18Z 64 49 277 3 0.00 0.00 568 581 16.2 -10.9 1015.7 52 CLR 225FEW246 270BKN327 65 51 15.0 0.0 0.637 18.2 33 03/22 21Z 68 50 291 6 0.00 0.00 568 581 16.8 -9.9 1014.3 79 CLR 205FEW231 295BKN348 68 64 15.0 0.0 0.612 19.2 36 03/23 00Z 64 50 288 8 0.00 0.00 569 580 17.9 -9.4 1013.5 40 CLR 210FEW233 295SCT348 69 63 15.0 0.0 0.706 19.4 39 03/23 03Z 55 48 264 5 0.00 0.00 569 581 17.3 -9.6 1014.7 71 CLR 213FEW229 312BKN392 65 55 15.0 0.0 0.707 20.2 42 03/23 06Z 52 47 227 4 0.00 0.00 568 581 17.1 -9.7 1016.3 71 CLR 203FEW232 297BKN352 65 52 15.0 0.0 0.668 20.1 45 03/23 09Z 51 46 185 4 0.00 0.00 568 582 16.8 -9.3 1016.0 97 CLR 176FEW231 338BKN412 52 51 15.0 0.0 0.703 19.7 48 03/23 12Z 51 46 199 4 0.00 0.00 568 581 15.0 -8.9 1016.4 83 CLR 179FEW224 323BKN411 52 51 15.0 0.0 0.805 18.6 51 03/23 15Z 53 47 189 3 0.00 0.00 567 582 14.2 -8.9 1017.6 75 CLR 177FEW208 298BKN393 53 51 15.0 0.0 0.744 18.2 54 03/23 18Z 62 46 232 3 0.00 0.00 568 583 14.6 -8.8 1017.8 65 CLR 177FEW208 322BKN401 62 51 15.0 0.0 0.668 18.3 57 03/23 21Z 67 43 284 6 0.00 0.00 569 583 14.9 -8.6 1017.1 9 CLR 200FEW227 387FEW408 67 62 15.0 0.0 0.783 18.0 60 03/24 00Z 65 41 279 6 0.00 0.00 570 583 15.3 -7.9 1015.8 51 CLR 192FEW211 334SCT408 67 62 15.0 0.0 0.803 18.5 63 03/24 03Z 55 42 269 3 0.00 0.00 570 583 15.4 -7.4 1016.6 11 CLR CLR 359FEW406 65 55 15.0 0.0 0.665 18.7 66 03/24 06Z 53 43 196 2 0.00 0.00 570 584 15.5 -7.3 1017.0 7 CLR CLR 365FEW403 65 53 15.0 0.0 0.587 18.7 69 03/24 09Z 53 43 166 3 0.00 0.00 569 583 15.6 -7.9 1017.2 52 CLR CLR 369BKN412 53 53 15.0 0.0 0.481 18.3 72 03/24 12Z 52 44 197 2 0.00 0.00 568 583 15.3 -7.8 1017.5 56 CLR CLR 375BKN412 54 52 15.0 0.0 0.429 17.7 75 03/24 15Z 54 44 155 3 0.00 0.00 568 583 15.0 -8.1 1018.3 2 CLR CLR 400FEW412 54 52 15.0 0.0 0.395 17.6 78 03/24 18Z 65 43 296 5 0.00 0.00 568 584 14.8 -8.7 1018.8 1 CLR CLR CLR 65 52 15.0 0.0 0.380 17.2 81 03/24 21Z 70 42 284 6 0.00 0.00 569 584 15.3 -8.7 1017.6 17 CLR CLR 359FEW396 70 65 15.0 0.0 0.412 17.4 84 03/25 00Z 68 43 271 7 0.00 0.00 569 583 15.9 -8.5 1016.1 16 CLR CLR 355FEW387 71 65 15.0 0.0 0.448 18.3 87 03/25 03Z 56 44 266 5 0.00 0.00 568 583 15.7 -9.3 1017.4 0 CLR CLR CLR 68 56 15.0 0.0 0.461 17.5 90 03/25 06Z 54 45 194 1 0.00 0.00 568 583 15.9 -10.4 1017.7 0 CLR CLR CLR 68 54 15.0 0.0 0.467 18.0 93 03/25 09Z 53 47 203 2 0.00 0.00 567 582 15.6 -11.2 1017.5 0 CLR CLR CLR 54 53 15.0 0.0 0.624 18.1 96 03/25 12Z 52 48 181 2 0.00 0.00 566 581 14.7 -11.6 1017.1 1 CLR CLR 363FEW379 54 52 15.0 0.0 0.747 17.6 99 03/25 15Z 54 48 160 1 0.00 0.00 566 580 14.1 -12.1 1017.6 14 CLR CLR 355FEW395 54 52 15.0 0.0 0.823 17.1 102 03/25 18Z 64 49 266 4 0.00 0.00 565 580 13.0 -12.0 1018.1 10 CLR CLR 356FEW396 64 52 15.2 0.0 0.897 16.6 105 03/25 21Z 64 53 265 9 0.00 0.00 565 579 13.5 -12.4 1017.5 7 CLR CLR 356FEW386 66 64 15.2 0.0 0.831 16.2 108 03/26 00Z 62 50 260 8 0.00 0.00 565 578 13.9 -12.4 1016.3 31 CLR CLR 328SCT394 66 62 15.0 0.0 0.585 16.0 111 03/26 03Z 54 47 218 5 0.00 0.00 564 578 13.9 -12.4 1017.0 100 CLR CLR 308OVC388 62 54 15.0 0.0 0.398 16.6 114 03/26 06Z 51 46 218 3 0.00 0.00 563 578 14.7 -12.8 1017.6 70 CLR CLR 306BKN372 62 51 15.0 0.0 0.463 15.5 117 03/26 09Z 50 44 208 3 0.00 0.00 562 577 14.6 -13.0 1017.7 83 CLR CLR 333BKN394 51 50 15.0 0.0 0.403 16.1 120 03/26 12Z 48 43 169 2 0.00 0.00 562 576 14.6 -12.8 1017.5 67 CLR CLR 324BKN395 51 48 15.0 0.0 0.266 15.4 123 03/26 15Z 50 42 92 1 0.00 0.00 561 576 13.9 -13.1 1018.5 9 CLR CLR 365FEW390 50 47 15.0 0.0 0.336 14.4 126 03/26 18Z 63 40 357 5 0.00 0.00 562 577 13.5 -13.6 1018.4 52 CLR CLR 325BKN396 63 47 15.0 0.0 0.313 13.0 129 03/26 21Z 71 43 7 7 0.00 0.00 563 578 13.9 -13.5 1016.9 72 CLR CLR 317BKN405 71 63 15.0 0.0 0.305 15.8 132 03/27 00Z 72 41 350 5 0.00 0.00 565 578 14.5 -13.7 1015.1 85 CLR CLR 319BKN409 73 63 15.0 0.0 0.220 18.3 135 03/27 03Z 59 42 262 2 0.00 0.00 566 578 15.6 -13.3 1014.9 92 CLR CLR 332BKN412 72 59 15.0 0.0 0.244 18.5 138 03/27 06Z 57 42 103 2 0.00 0.00 566 579 17.6 -13.5 1014.8 96 CLR CLR 327BKN413 72 57 15.0 0.0 0.302 18.5 141 03/27 09Z 57 38 95 3 0.00 0.00 567 579 17.8 -13.6 1014.3 100 CLR CLR 335OVC411 57 57 15.0 0.0 0.302 17.4 144 03/27 12Z 55 33 42 3 0.00 0.00 567 578 17.5 -13.8 1013.7 100 CLR CLR 326OVC406 57 55 15.0 0.0 0.278 17.7 147 03/27 15Z 55 34 47 3 0.00 0.00 566 579 17.2 -14.1 1014.8 100 CLR CLR 301OVC391 55 54 15.0 0.0 0.330 18.4 150 03/27 18Z 66 42 3 2 0.00 0.00 566 579 17.4 -14.3 1015.0 100 CLR CLR 278OVC364 66 54 15.0 0.0 0.372 18.6 153 03/27 21Z 73 46 315 3 0.00 0.00 568 579 17.5 -14.1 1013.3 86 CLR 235FEW245 245BKN304 73 66 15.0 0.0 0.419 18.6 156 03/28 00Z 74 48 302 5 0.00 0.00 568 578 17.2 -13.8 1012.1 93 CLR 232FEW245 256BKN324 75 66 15.0 0.0 0.468 19.9 159 03/28 03Z 63 48 292 4 0.00 0.00 567 578 16.8 -13.8 1013.0 100 CLR 235FEW245 245OVC387 74 62 15.0 0.0 0.483 19.5 162 03/28 06Z 60 48 289 3 0.00 0.00 567 578 16.7 -13.3 1013.9 100 CLR 225SCT245 245OVC385 74 60 15.0 0.0 0.484 19.4 165 03/28 09Z 58 47 283 3 0.00 0.00 566 578 17.1 -13.6 1014.3 100 CLR 206OVC245 284OVC379 60 58 15.0 0.0 0.437 19.1 168 03/28 12Z 56 46 284 3 0.00 0.00 565 577 16.3 -13.4 1013.8 100 CLR 210BKN244 272OVC398 60 56 15.0 0.0 0.454 19.1