Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 11AUG 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 08/11 12Z 54 52 195 1 0.00 0.00 578 589 25.1 -8.5 1013.6 0 CLR CLR CLR **** **** 14.7 0.0 0.876 23.9 3 08/11 15Z 58 53 223 2 0.00 0.00 577 589 24.2 -8.5 1014.6 0 CLR CLR CLR 58 54 15.0 0.0 0.899 22.9 6 08/11 18Z 68 54 282 2 0.00 0.00 577 590 23.7 -8.3 1014.7 0 CLR CLR CLR 69 54 15.0 0.0 0.905 22.8 9 08/11 21Z 72 54 292 9 0.00 0.00 578 590 23.5 -8.2 1013.7 0 CLR CLR CLR 74 68 15.0 0.0 0.902 23.8 12 08/12 00Z 68 54 294 10 0.00 0.00 578 589 23.5 -7.7 1012.7 0 CLR CLR CLR 75 66 15.0 0.0 0.859 25.3 15 08/12 03Z 59 53 292 5 0.00 0.00 578 588 23.5 -7.6 1012.9 5 CLR CLR 344FEW368 68 59 15.1 0.0 0.857 23.6 18 08/12 06Z 56 53 228 3 0.00 0.00 577 588 23.7 -7.8 1013.0 37 CLR CLR 325SCT368 68 56 13.2 0.0 0.820 23.2 21 08/12 09Z 55 52 182 3 0.00 0.00 576 586 23.7 -8.2 1012.0 86 FEW CLR 303BKN392 56 55 13.5 0.0 0.801 23.1 24 08/12 12Z 55 54 166 4 0.00 0.00 575 585 23.1 -8.5 1011.7 93 FEW CLR 296BKN395 56 55 15.0 0.0 0.866 21.0 27 08/12 15Z 59 54 180 4 0.00 0.00 575 585 22.5 -8.7 1012.1 100 005FEW008 CLR 275OVC394 59 55 15.0 0.0 0.979 19.9 30 08/12 18Z 68 55 248 2 0.00 0.00 575 585 21.7 -9.3 1011.8 100 005FEW008 160FEW195 266OVC378 68 55 15.0 0.0 1.054 18.2 33 08/12 21Z 74 56 294 8 0.00 0.00 575 584 21.7 -8.8 1009.8 92 CLR 208FEW232 253BKN339 74 68 15.2 0.0 1.042 19.1 36 08/13 00Z 68 56 287 10 0.00 0.00 575 583 21.4 -8.2 1008.8 53 CLR 207FEW231 255BKN337 75 66 15.1 0.0 1.015 19.9 39 08/13 03Z 59 54 284 7 0.00 0.00 574 582 20.9 -8.4 1009.4 37 CLR CLR 260SCT312 68 59 15.0 0.0 0.987 19.0 42 08/13 06Z 57 54 245 4 0.00 0.00 573 581 21.2 -8.4 1010.6 68 CLR CLR 258BKN301 68 56 15.0 0.0 0.956 15.2 45 08/13 09Z 56 54 200 3 0.00 0.00 571 580 20.6 -9.5 1009.8 75 009SCT020 CLR 249BKN271 57 56 15.1 0.0 0.992 12.3 48 08/13 12Z 56 53 161 5 0.00 0.00 570 579 19.4 -10.0 1010.4 87 010SCT021 236FEW246 248BKN276 57 56 15.0 0.0 0.986 11.3 51 08/13 15Z 59 54 181 6 0.00 0.00 570 579 18.6 -10.5 1011.6 100 013BKN025 235FEW246 246OVC287 59 55 15.0 0.0 0.908 10.2 54 08/13 18Z 64 54 226 9 0.00 0.00 569 579 18.0 -10.2 1012.1 99 014BKN027 227SCT246 246BKN286 64 55 15.0 0.0 0.854 11.0 57 08/13 21Z 66 54 247 14 0.00 0.00 569 579 17.2 -9.4 1011.9 64 021SCT030 227FEW246 246SCT294 67 64 15.0 0.0 0.837 12.9 60 08/14 00Z 64 54 249 14 0.00 0.00 570 579 15.9 -8.7 1011.3 46 021FEW029 229FEW246 247SCT295 67 63 15.0 0.0 0.851 12.0 63 08/14 03Z 59 54 238 11 0.00 0.00 569 580 16.3 -8.8 1012.2 21 015FEW024 236FEW246 247FEW258 63 59 15.0 0.0 0.854 11.3 66 08/14 06Z 58 54 237 8 0.00 0.00 568 580 16.8 -9.4 1013.4 40 008SCT026 CLR 270FEW288 63 57 15.0 0.0 0.818 9.8 69 08/14 09Z 58 54 212 6 0.00 0.00 568 579 16.2 -9.6 1013.4 95 000BKN031 CLR 280FEW304 58 58 15.0 0.0 0.795 9.7 72 08/14 12Z 58 54 195 3 0.00 0.00 567 579 15.5 -9.9 1014.0 97 000BKN033 CLR 280FEW304 58 58 15.0 0.0 0.773 9.8 75 08/14 15Z 60 54 185 4 0.00 0.00 567 579 15.1 -10.3 1015.2 95 009BKN034 CLR CLR 60 58 15.0 0.0 0.732 10.0 78 08/14 18Z 65 54 246 5 0.00 0.00 567 580 14.7 -10.2 1015.9 90 014BKN034 CLR CLR 65 58 15.0 0.0 0.706 11.1 81 08/14 21Z 68 55 269 11 0.00 0.00 568 581 15.2 -9.5 1015.4 24 026FEW034 CLR 308FEW319 69 65 15.0 0.0 0.706 13.5 84 08/15 00Z 64 54 267 11 0.00 0.00 568 581 15.1 -9.4 1015.2 12 026FEW034 CLR 304FEW318 69 64 15.0 0.0 0.731 13.0 87 08/15 03Z 58 54 272 6 0.00 0.00 568 581 16.3 -9.4 1015.7 4 017FEW020 CLR CLR 64 58 15.0 0.0 0.670 12.9 90 08/15 06Z 59 54 259 6 0.00 0.00 568 582 16.6 -9.1 1016.7 38 012SCT025 CLR 370FEW382 64 57 13.6 0.0 0.708 11.9 93 08/15 09Z 58 53 255 5 0.00 0.00 568 582 16.6 -8.6 1016.5 95 010BKN026 CLR 353FEW373 59 58 15.0 0.0 0.718 12.0 96 08/15 12Z 57 53 252 5 0.00 0.00 567 581 16.2 -8.5 1016.7 92 009BKN026 CLR 362FEW380 59 57 15.0 0.0 0.710 11.0 99 08/15 15Z 59 53 251 3 0.00 0.00 567 582 15.7 -8.7 1017.9 90 000BKN028 CLR 395FEW411 59 57 15.0 0.0 0.713 10.7 102 08/15 18Z 65 54 279 5 0.00 0.00 568 583 15.8 -8.5 1018.1 85 006BKN028 CLR 372FEW411 65 57 15.0 0.0 0.700 11.8 105 08/15 21Z 67 54 279 11 0.00 0.00 569 583 16.4 -8.3 1017.7 75 CLR CLR 299BKN412 67 65 15.0 0.0 0.702 14.3 108 08/16 00Z 64 54 276 8 0.00 0.00 569 583 16.6 -8.5 1016.9 88 CLR CLR 299BKN399 67 64 15.0 0.0 0.692 17.9 111 08/16 03Z 58 54 276 5 0.00 0.00 569 584 17.3 -9.0 1017.0 95 CLR CLR 316BKN348 64 58 14.5 0.0 0.656 18.4 114 08/16 06Z 57 53 255 4 0.00 0.00 569 584 17.5 -9.2 1018.2 89 010FEW016 CLR 313BKN348 64 56 15.1 0.0 0.739 18.0 117 08/16 09Z 56 52 244 4 0.00 0.00 569 584 17.4 -8.9 1018.1 86 009BKN017 CLR 306FEW336 57 56 15.1 0.0 0.743 17.5 120 08/16 12Z 56 53 253 3 0.00 0.00 569 584 17.1 -9.2 1017.8 93 009BKN017 CLR 299BKN365 57 56 15.0 0.0 0.745 17.3 123 08/16 15Z 58 53 247 3 0.00 0.00 569 584 16.9 -9.6 1018.8 100 009BKN018 CLR 290OVC424 58 56 15.0 0.0 0.754 17.7 126 08/16 18Z 65 54 276 4 0.00 0.00 570 586 16.9 -10.1 1018.9 100 009BKN018 214FEW247 268OVC431 65 56 15.0 0.0 0.770 17.7 129 08/16 21Z 69 54 291 8 0.00 0.00 571 586 17.5 -8.8 1018.0 99 CLR 200SCT248 255BKN415 69 65 15.0 0.0 0.695 18.8 132 08/17 00Z 65 53 293 8 0.00 0.00 572 586 17.9 -8.7 1016.8 97 CLR 200FEW248 275BKN408 69 64 15.0 0.0 0.636 20.1 135 08/17 03Z 58 53 272 4 0.00 0.00 572 586 18.3 -8.1 1016.9 100 CLR CLR 273OVC435 65 58 15.0 0.0 0.616 19.4 138 08/17 06Z 57 53 218 3 0.00 0.00 571 587 18.5 -8.0 1018.0 100 CLR CLR 279OVC425 65 57 15.0 0.0 0.652 19.6 141 08/17 09Z 55 52 219 2 0.00 0.00 571 586 18.3 -7.1 1017.8 95 CLR CLR 271BKN324 57 55 15.0 0.0 0.617 19.0 144 08/17 12Z 55 52 220 2 0.00 0.00 571 585 18.1 -7.3 1017.3 97 CLR CLR 274BKN333 57 55 15.0 0.0 0.575 19.4 147 08/17 15Z 59 53 244 2 0.00 0.00 570 586 17.8 -7.7 1018.7 100 CLR CLR 290OVC343 59 55 15.0 0.0 0.567 18.4 150 08/17 18Z 67 52 276 5 0.00 0.00 571 587 17.4 -7.8 1018.8 97 CLR CLR 298BKN365 67 55 15.0 0.0 0.622 18.1 153 08/17 21Z 69 52 290 8 0.00 0.00 571 586 17.7 -7.7 1018.1 82 CLR 188FEW207 285BKN431 70 67 15.0 0.0 0.672 18.8 156 08/18 00Z 68 51 286 8 0.00 0.00 572 586 18.0 -7.5 1017.0 90 CLR 188SCT209 299BKN421 70 66 15.0 0.0 0.592 19.5 159 08/18 03Z 59 53 278 6 0.00 0.00 571 586 18.3 -7.5 1017.7 69 CLR 226SCT248 295BKN357 68 59 15.0 0.0 0.644 18.6 162 08/18 06Z 57 53 208 3 0.00 0.00 571 587 17.7 -7.8 1018.3 77 CLR 219BKN248 299BKN354 68 57 15.0 0.0 0.652 19.1 165 08/18 09Z 56 53 266 2 0.00 0.00 570 586 17.9 -7.7 1018.5 92 CLR 199BKN248 297BKN331 57 56 15.0 0.0 0.710 18.2 168 08/18 12Z 57 53 213 2 0.00 0.00 569 584 17.3 -8.1 1018.2 96 CLR 196BKN248 302BKN359 57 56 15.0 0.0 0.868 18.0