Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 15AUG 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 08/15 12Z 59 53 252 5 0.00 0.00 567 582 15.3 -10.2 1018.0 97 000BKN000 CLR CLR **** **** 15.0 0.0 0.679 10.3 3 08/15 15Z 59 55 251 3 0.00 0.00 567 583 14.7 -10.1 1019.8 99 000OVC030 CLR CLR 59 58 15.0 0.0 0.673 10.1 6 08/15 18Z 64 55 285 6 0.00 0.00 567 584 15.1 -9.3 1020.2 96 000BKN030 CLR CLR 64 58 15.0 0.0 0.685 10.6 9 08/15 21Z 67 55 285 11 0.00 0.00 568 585 15.8 -9.0 1020.1 20 021FEW027 CLR 368FEW408 68 64 15.0 0.0 0.714 13.8 12 08/16 00Z 64 55 278 9 0.00 0.00 569 585 16.2 -9.1 1019.2 44 020FEW027 CLR 315SCT388 68 63 15.0 0.0 0.753 16.9 15 08/16 03Z 58 55 275 5 0.00 0.00 569 585 17.2 -9.2 1019.1 34 CLR CLR 303SCT334 64 58 14.5 0.0 0.669 18.3 18 08/16 06Z 57 54 235 3 0.00 0.00 570 586 17.4 -9.1 1019.3 39 009FEW016 CLR 306FEW337 64 57 15.0 0.0 0.750 19.0 21 08/16 09Z 55 53 231 2 0.00 0.00 570 586 17.5 -8.6 1019.0 22 008FEW013 CLR 394FEW408 57 55 15.0 0.0 0.757 19.4 24 08/16 12Z 55 53 242 2 0.00 0.00 570 586 17.2 -8.4 1018.8 48 008FEW013 CLR 363SCT413 57 55 15.0 0.0 0.753 19.6 27 08/16 15Z 59 54 252 1 0.00 0.00 570 586 17.8 -8.2 1019.0 82 CLR CLR 355BKN436 59 55 15.0 0.0 0.735 20.5 30 08/16 18Z 69 55 296 5 0.00 0.00 571 588 17.9 -8.0 1019.2 77 CLR CLR 365BKN438 69 54 15.0 0.0 0.777 20.2 33 08/16 21Z 73 55 294 8 0.00 0.00 573 588 18.3 -7.6 1017.9 69 CLR CLR 399BKN451 74 69 15.0 0.0 0.782 21.3 36 08/17 00Z 70 54 298 8 0.00 0.00 574 588 19.2 -7.8 1016.0 68 CLR CLR 380BKN439 75 69 15.0 0.0 0.706 22.4 39 08/17 03Z 61 54 293 6 0.00 0.00 574 588 18.9 -7.4 1016.4 54 CLR CLR 304BKN331 70 61 15.1 0.0 0.682 21.9 42 08/17 06Z 59 55 278 4 0.00 0.00 574 588 19.4 -7.5 1017.2 77 CLR CLR 313BKN385 70 59 15.1 0.0 0.680 21.5 45 08/17 09Z 57 54 280 3 0.00 0.00 573 587 19.7 -7.3 1016.8 100 CLR CLR 283OVC399 59 57 15.0 0.0 0.696 21.5 48 08/17 12Z 56 54 284 2 0.00 0.00 573 587 19.9 -7.6 1016.3 100 CLR CLR 291OVC393 59 56 14.9 0.0 0.610 20.7 51 08/17 15Z 59 55 284 2 0.00 0.00 572 587 19.2 -9.0 1017.8 100 CLR CLR 289OVC341 59 56 14.9 0.0 0.609 19.7 54 08/17 18Z 69 55 283 4 0.00 0.00 572 587 19.4 -9.1 1017.6 64 CLR CLR 291BKN339 69 56 15.0 0.0 0.606 20.5 57 08/17 21Z 70 55 291 9 0.00 0.00 573 588 19.8 -9.8 1017.0 61 CLR CLR 340BKN419 72 69 15.0 0.0 0.618 21.1 60 08/18 00Z 65 55 284 9 0.00 0.00 574 588 20.5 -9.3 1016.3 45 CLR CLR 349SCT414 72 65 15.0 0.0 0.619 21.6 63 08/18 03Z 58 55 272 6 0.00 0.00 573 588 21.1 -9.1 1017.0 13 CLR CLR 394FEW417 65 58 14.4 0.0 0.669 20.9 66 08/18 06Z 58 54 263 5 0.00 0.00 574 589 21.5 -7.7 1018.0 52 010FEW016 CLR 378SCT442 65 57 13.5 0.0 0.719 21.5 69 08/18 09Z 57 54 259 5 0.00 0.00 574 588 21.9 -6.5 1016.3 100 009BKN017 CLR 365OVC452 58 57 13.4 0.0 0.733 22.1 72 08/18 12Z 57 53 247 4 0.00 0.00 574 588 22.0 -5.6 1016.0 100 008BKN017 CLR 364OVC450 58 57 13.8 0.0 0.738 23.6 75 08/18 15Z 58 54 233 3 0.00 0.00 574 589 21.4 -5.1 1017.2 100 009BKN016 236FEW249 288OVC411 58 57 15.0 0.0 0.825 22.8 78 08/18 18Z 66 54 258 2 0.00 0.00 576 590 21.6 -6.4 1016.9 100 009SCT016 224SCT250 282OVC417 66 57 15.0 0.0 0.825 23.6 81 08/18 21Z 72 55 282 5 0.00 0.00 577 590 21.9 -6.4 1015.6 72 CLR 194BKN250 255BKN433 72 65 15.2 0.0 0.804 24.5 84 08/19 00Z 67 54 283 8 0.00 0.00 578 590 21.9 -6.3 1014.9 41 CLR 196SCT248 261SCT430 73 65 15.1 0.0 0.855 24.3 87 08/19 03Z 59 54 267 5 0.00 0.00 578 591 22.6 -6.2 1014.7 42 CLR 197FEW211 392SCT441 67 59 14.8 0.0 0.877 25.5 90 08/19 06Z 57 55 225 3 0.00 0.00 578 591 23.0 -6.1 1015.2 71 CLR 192FEW208 362BKN437 67 57 13.4 0.0 0.899 26.3 93 08/19 09Z 56 54 173 3 0.00 0.00 578 590 23.0 -5.3 1014.3 68 008FEW011 185FEW194 317BKN374 57 56 15.0 0.0 0.869 26.7 96 08/19 12Z 57 54 237 2 0.00 0.00 578 590 22.7 -5.6 1013.8 69 008FEW011 224FEW241 299BKN365 57 56 15.0 0.0 0.879 25.5 99 08/19 15Z 60 55 236 1 0.00 0.00 578 590 22.8 -6.5 1014.2 99 CLR 222BKN250 312OVC382 60 56 15.0 0.0 0.876 25.8 102 08/19 18Z 71 55 298 4 0.00 0.00 579 591 23.0 -5.9 1014.4 89 CLR 217BKN250 300BKN389 71 56 15.0 0.0 0.943 25.3 105 08/19 21Z 74 55 290 7 0.00 0.00 579 591 23.4 -6.1 1013.3 100 CLR 207FEW245 275OVC423 75 71 13.3 0.0 0.941 26.4 108 08/20 00Z 65 54 271 5 0.00 0.00 580 591 23.7 -6.0 1012.9 100 CLR 206BKN250 267OVC410 75 65 15.0 0.0 0.932 26.6 111 08/20 03Z 60 55 241 4 0.00 0.00 580 591 23.8 -6.3 1013.1 100 CLR 215FEW237 274OVC408 66 60 15.0 0.0 0.920 26.6 114 08/20 06Z 58 55 193 4 0.00 0.00 580 591 23.9 -5.6 1014.0 100 CLR 227FEW247 286OVC404 66 58 13.5 0.0 0.946 27.3 117 08/20 09Z 57 55 211 3 0.00 0.00 579 591 23.8 -5.5 1013.4 99 FEW 235FEW251 286OVC353 58 57 14.9 0.0 1.017 27.3 120 08/20 12Z 56 54 218 3 0.00 0.00 579 590 23.4 -5.9 1013.2 94 CLR 226FEW250 294BKN353 58 56 15.0 0.0 1.092 26.9 123 08/20 15Z 59 55 228 3 0.00 0.00 578 590 23.2 -6.0 1014.2 57 CLR 217SCT250 292SCT333 60 56 15.0 0.0 1.139 26.3 126 08/20 18Z 70 55 266 3 0.00 0.00 579 591 23.1 -6.1 1014.3 68 CLR 212BKN251 296SCT337 70 56 15.0 0.0 1.126 26.1 129 08/20 21Z 72 54 283 9 0.00 0.00 580 591 22.9 -5.3 1013.2 11 CLR 210FEW251 322FEW342 74 70 13.4 0.0 1.077 25.9 132 08/21 00Z 67 54 271 8 0.00 0.00 580 591 23.3 -5.8 1013.0 10 CLR 211FEW246 344FEW362 74 66 15.0 0.0 1.059 26.2 135 08/21 03Z 60 55 229 4 0.00 0.00 580 591 23.4 -5.9 1013.2 3 CLR CLR 394FEW417 66 59 14.5 0.0 1.047 25.9 138 08/21 06Z 57 55 203 5 0.00 0.00 579 591 23.1 -5.5 1013.8 3 CLR CLR 394FEW417 66 57 13.5 0.0 0.949 26.0 141 08/21 09Z 57 55 212 4 0.00 0.00 579 590 23.2 -5.8 1013.9 21 009FEW013 CLR 389FEW405 57 57 13.5 0.0 0.917 25.5 144 08/21 12Z 57 55 216 4 0.00 0.00 578 589 23.0 -6.4 1013.5 34 007SCT012 CLR 379FEW395 58 56 13.9 0.0 0.944 25.3 147 08/21 15Z 59 54 212 4 0.00 0.00 577 590 22.4 -6.5 1014.6 55 006BKN013 CLR CLR 59 57 15.0 0.0 0.928 25.1 150 08/21 18Z 67 55 262 5 0.00 0.00 577 590 22.2 -6.1 1015.2 31 007SCT013 CLR CLR 68 57 15.2 0.0 0.934 24.5 153 08/21 21Z 69 55 267 7 0.00 0.00 577 590 22.0 -6.1 1014.7 0 CLR CLR CLR 69 67 15.0 0.0 0.974 23.9 156 08/22 00Z 66 54 265 8 0.00 0.00 578 590 22.0 -5.8 1014.2 0 CLR CLR CLR 69 65 15.0 0.0 0.994 23.9 159 08/22 03Z 59 54 235 4 0.00 0.00 578 590 22.0 -5.8 1014.3 0 CLR CLR CLR 66 59 15.0 0.0 1.010 23.6 162 08/22 06Z 58 54 186 5 0.00 0.00 578 590 22.2 -5.5 1014.6 1 CLR CLR CLR 66 58 13.4 0.0 0.970 24.2 165 08/22 09Z 57 54 190 5 0.00 0.00 578 590 21.6 -5.8 1014.2 3 FEW CLR CLR 58 57 15.0 0.0 0.971 24.3 168 08/22 12Z 56 54 204 3 0.00 0.00 578 589 21.9 -6.1 1013.8 2 FEW CLR CLR 58 56 14.9 0.0 0.963 24.3