Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 27AUG 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 08/27 12Z 59 57 221 2 0.00 0.00 576 587 23.6 -8.9 1013.6 3 CLR CLR 000FEW000 **** **** 14.9 0.0 1.014 24.4 3 08/27 15Z 62 58 249 2 0.00 0.00 575 587 23.2 -9.2 1014.4 1 CLR CLR 311FEW322 62 59 15.0 0.0 1.059 24.6 6 08/27 18Z 73 58 278 5 0.00 0.00 575 587 22.8 -9.7 1014.5 20 CLR 189FEW228 CLR 73 59 15.2 0.0 1.096 24.8 9 08/27 21Z 76 58 282 8 0.00 0.00 576 587 23.2 -9.4 1013.6 100 CLR 177BKN227 356BKN394 77 73 15.2 0.0 1.104 25.8 12 08/28 00Z 71 54 242 6 0.00 0.00 575 586 22.2 -8.1 1013.7 100 CLR 175SCT226 327BKN404 77 70 15.0 0.0 1.112 24.5 15 08/28 03Z 61 52 257 4 0.00 0.00 574 586 21.7 -8.5 1013.6 100 CLR 179FEW202 283OVC398 71 61 15.0 0.0 1.124 24.6 18 08/28 06Z 61 53 192 4 0.00 0.00 574 586 21.4 -7.1 1013.8 100 CLR 153SCT200 289OVC404 70 60 15.0 0.0 1.173 24.1 21 08/28 09Z 60 55 210 4 0.00 0.00 573 585 21.1 -7.8 1013.5 100 110FEW124 138BKN180 248OVC422 62 60 14.9 0.0 1.233 24.1 24 08/28 12Z 59 56 230 3 0.00 0.00 572 583 20.7 -8.7 1013.1 100 107FEW123 139BKN192 256OVC410 62 59 14.9 0.0 1.289 23.5 27 08/28 15Z 61 56 179 6 0.00 0.00 570 583 18.0 -8.2 1015.5 100 094SCT123 133OVC238 251OVC384 61 59 15.0 0.0 1.292 22.0 30 08/28 18Z 65 53 208 3 0.01 0.00 569 583 15.2 -8.6 1016.4 100 -RA 070BKN118 128OVC242 249OVC389 65 59 15.0 0.0 1.671 18.4 33 08/28 21Z 69 55 309 5 0.00 0.00 570 583 16.4 -9.2 1015.2 100 078SCT123 123OVC247 253OVC351 70 64 15.0 0.0 1.512 18.6 36 08/29 00Z 69 55 285 7 0.00 0.00 571 583 17.8 -9.1 1014.3 79 078FEW123 133BKN245 251BKN330 71 64 15.2 0.0 1.024 20.1 39 08/29 03Z 58 54 260 4 0.00 0.00 570 583 18.5 -10.1 1014.5 4 CLR 205FEW218 CLR 69 58 14.3 0.0 0.777 20.4 42 08/29 06Z 56 54 215 4 0.00 0.00 570 583 18.8 -9.5 1014.9 3 CLR 205FEW218 CLR 69 56 13.4 0.0 0.678 20.2 45 08/29 09Z 56 54 222 4 0.00 0.00 570 582 18.2 -8.7 1015.1 15 008FEW014 CLR CLR 56 56 13.6 0.0 0.528 19.8 48 08/29 12Z 57 53 207 3 0.00 0.00 569 581 18.3 -8.9 1014.5 44 007SCT014 CLR CLR 57 55 15.0 0.0 0.471 19.7 51 08/29 15Z 58 53 200 3 0.00 0.00 569 582 17.6 -10.1 1015.6 57 009BKN014 CLR 320FEW331 58 57 15.0 0.0 0.535 18.6 54 08/29 18Z 67 53 245 3 0.00 0.00 569 582 17.3 -10.0 1015.4 50 009SCT014 CLR 281FEW311 67 57 15.0 0.0 0.602 17.7 57 08/29 21Z 68 52 258 8 0.00 0.00 569 581 17.4 -9.8 1014.5 2 CLR CLR 271FEW310 70 67 15.0 0.0 0.607 18.0 60 08/30 00Z 64 52 260 9 0.00 0.00 569 580 17.5 -10.3 1013.7 1 CLR CLR CLR 70 64 15.0 0.0 0.597 17.8 63 08/30 03Z 57 53 234 8 0.00 0.00 568 580 17.6 -10.6 1013.2 0 CLR CLR CLR 64 58 15.0 0.0 0.555 18.0 66 08/30 06Z 57 54 222 7 0.00 0.00 568 579 17.4 -10.4 1013.2 1 FEW CLR CLR 64 57 13.4 0.0 0.627 18.2 69 08/30 09Z 58 53 223 7 0.00 0.00 568 579 17.6 -9.2 1013.0 62 011BKN018 CLR CLR 58 57 15.0 0.0 0.601 15.6 72 08/30 12Z 57 52 223 7 0.00 0.00 568 579 18.0 -9.3 1012.8 73 010BKN019 CLR CLR 58 56 15.0 0.0 0.564 12.4 75 08/30 15Z 58 52 197 7 0.00 0.00 569 580 17.8 -9.3 1013.9 100 007OVC022 CLR CLR 58 57 15.0 0.0 0.531 10.8 78 08/30 18Z 65 51 210 4 0.00 0.00 570 582 17.7 -7.9 1014.0 76 009BKN023 CLR CLR 65 57 15.0 0.0 0.508 12.3 81 08/30 21Z 71 52 273 8 0.00 0.00 572 582 18.1 -7.2 1012.4 0 CLR CLR CLR 72 65 15.0 0.0 0.482 16.0 84 08/31 00Z 67 53 289 9 0.00 0.00 572 582 18.2 -7.0 1011.4 1 CLR CLR 384FEW405 72 65 15.0 0.0 0.485 19.3 87 08/31 03Z 58 53 265 5 0.00 0.00 572 582 18.2 -7.0 1011.6 14 CLR CLR 367FEW411 67 58 14.6 0.0 0.528 19.6 90 08/31 06Z 56 52 216 4 0.00 0.00 572 582 18.8 -7.2 1011.9 11 FEW CLR 366FEW411 67 56 13.6 0.0 0.503 19.1 93 08/31 09Z 55 52 213 3 0.00 0.00 571 581 18.7 -7.3 1011.6 9 FEW CLR 356FEW396 56 55 13.5 0.0 0.525 18.5 96 08/31 12Z 54 52 188 3 0.00 0.00 570 580 18.3 -7.8 1011.5 10 FEW CLR 350FEW379 56 54 13.9 0.0 0.515 16.1 99 08/31 15Z 56 52 175 4 0.00 0.00 569 580 17.2 -7.8 1012.8 12 008FEW012 CLR 353FEW365 57 54 15.1 0.0 0.506 14.6 102 08/31 18Z 65 52 243 4 0.00 0.00 569 580 16.2 -8.0 1013.1 11 011FEW016 CLR 362FEW373 65 54 15.0 0.0 0.527 11.6 105 08/31 21Z 69 52 269 10 0.00 0.00 569 579 16.3 -8.8 1012.2 0 CLR CLR CLR 70 65 15.0 0.0 0.618 14.3 108 09/01 00Z 65 53 264 12 0.00 0.00 569 578 15.5 -8.9 1011.6 0 CLR CLR 391FEW403 70 64 15.0 0.0 0.626 13.2 111 09/01 03Z 60 54 245 10 0.00 0.00 567 578 15.5 -9.6 1012.2 5 CLR CLR 353FEW381 65 60 15.1 0.0 0.609 12.1 114 09/01 06Z 59 53 222 9 0.00 0.00 566 577 15.7 -10.7 1013.1 20 018FEW025 CLR 325FEW357 65 59 15.0 0.0 0.622 10.6 117 09/01 09Z 59 52 238 9 0.00 0.00 565 576 14.0 -11.2 1013.7 44 005SCT029 CLR CLR 59 58 15.0 0.0 0.716 9.7 120 09/01 12Z 59 54 191 3 0.00 0.00 563 575 12.7 -11.9 1014.1 72 000BKN034 CLR CLR 59 58 15.0 0.0 0.887 10.3 123 09/01 15Z 60 55 243 4 0.00 0.00 562 575 11.6 -11.8 1015.5 100 000OVC040 CLR 279FEW290 60 59 15.0 0.0 0.981 10.6 126 09/01 18Z 64 54 266 6 0.00 0.00 561 575 11.9 -12.1 1016.2 93 007BKN039 CLR 310FEW344 64 59 15.0 0.0 0.989 10.7 129 09/01 21Z 66 54 275 11 0.00 0.00 561 575 11.0 -12.2 1015.7 96 022BKN035 CLR 308BKN345 67 65 15.0 0.0 0.946 11.9 132 09/02 00Z 64 55 282 10 0.00 0.00 561 574 11.8 -12.9 1014.9 65 022SCT034 CLR 299BKN339 67 64 15.0 0.0 0.936 13.6 135 09/02 03Z 59 56 283 6 0.00 0.00 562 575 11.9 -12.0 1015.4 0 CLR CLR CLR 64 59 15.0 0.0 0.880 13.7 138 09/02 06Z 58 56 240 3 0.00 0.00 562 576 12.0 -10.4 1016.7 8 007FEW013 CLR CLR 64 58 13.6 0.0 0.827 14.0 141 09/02 09Z 59 56 252 5 0.00 0.00 563 577 11.9 -10.8 1016.5 60 005BKN014 CLR 340FEW351 59 58 14.7 0.0 0.803 14.1 144 09/02 12Z 58 55 237 4 0.00 0.00 563 577 12.1 -10.7 1016.6 75 005BKN015 CLR CLR 60 57 15.0 0.0 0.750 14.5 147 09/02 15Z 58 53 222 3 0.00 0.00 564 579 11.8 -9.8 1018.3 92 000BKN017 CLR 320SCT356 58 57 15.0 0.0 0.733 14.3 150 09/02 18Z 67 53 270 4 0.00 0.00 565 581 12.0 -9.5 1018.5 68 000BKN017 CLR 322FEW359 67 57 15.0 0.0 0.686 14.3 153 09/02 21Z 69 52 276 9 0.00 0.00 566 581 12.8 -8.7 1017.6 3 CLR CLR 312FEW352 69 67 15.0 0.0 0.630 15.9 156 09/03 00Z 66 51 273 9 0.00 0.00 568 582 14.4 -8.4 1016.8 19 CLR CLR 303FEW361 69 66 15.0 0.0 0.539 16.6 159 09/03 03Z 57 52 271 6 0.00 0.00 568 583 15.3 -8.1 1017.4 1 CLR CLR CLR 66 57 15.0 0.0 0.459 16.8 162 09/03 06Z 56 52 209 3 0.00 0.00 569 584 16.3 -7.6 1017.6 2 CLR CLR 395FEW410 66 56 15.0 0.0 0.468 17.7 165 09/03 09Z 55 52 174 5 0.00 0.00 570 584 16.4 -6.8 1016.4 7 CLR CLR 385FEW411 56 55 15.0 0.0 0.555 18.4 168 09/03 12Z 54 51 170 4 0.00 0.00 570 583 15.9 -6.6 1015.9 5 CLR CLR 395FEW416 56 55 15.0 0.0 0.652 18.5