Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 16AUG 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 08/16 00Z 63 55 281 9 0.00 0.00 569 585 15.9 -9.4 1019.4 87 CLR CLR 000BKN000 **** **** 14.9 0.0 0.716 17.2 3 08/16 03Z 57 55 272 4 0.00 0.00 569 585 16.9 -9.5 1019.1 56 009FEW016 CLR 313SCT343 63 57 14.5 0.0 0.653 18.5 6 08/16 06Z 58 54 236 3 0.00 0.00 570 586 17.1 -9.2 1019.5 74 007BKN018 CLR 327FEW357 63 57 15.0 0.0 0.686 18.4 9 08/16 09Z 56 54 255 2 0.00 0.00 570 586 16.9 -8.6 1018.9 75 010SCT016 CLR 359SCT431 58 56 15.0 0.0 0.748 18.9 12 08/16 12Z 55 53 252 1 0.00 0.00 570 586 17.1 -8.2 1018.7 88 009SCT015 CLR 334BKN386 58 55 14.9 0.0 0.733 19.5 15 08/16 15Z 59 54 219 1 0.00 0.00 571 587 17.3 -7.9 1019.3 100 008FEW012 CLR 353OVC433 59 55 15.0 0.0 0.724 19.7 18 08/16 18Z 69 55 300 5 0.00 0.00 571 588 17.6 -8.0 1019.5 68 008FEW013 CLR 366BKN435 69 55 15.0 0.0 0.759 19.6 21 08/16 21Z 73 55 293 9 0.00 0.00 573 588 17.8 -7.5 1017.9 20 CLR CLR 400FEW451 74 69 15.0 0.0 0.764 21.1 24 08/17 00Z 69 55 299 8 0.00 0.00 574 588 18.9 -7.7 1016.1 43 CLR CLR 387SCT440 74 67 15.1 0.0 0.731 22.3 27 08/17 03Z 61 55 299 7 0.00 0.00 574 587 18.7 -7.5 1016.5 48 CLR CLR 308SCT389 69 61 14.7 0.0 0.722 21.6 30 08/17 06Z 58 55 278 3 0.00 0.00 574 588 19.7 -7.7 1017.0 33 CLR CLR 318SCT394 69 58 15.0 0.0 0.694 22.0 33 08/17 09Z 58 55 273 2 0.00 0.00 574 587 19.8 -7.3 1016.2 100 CLR CLR 279OVC422 58 58 15.1 0.0 0.657 22.2 36 08/17 12Z 57 55 285 4 0.00 0.00 572 586 19.0 -7.6 1016.7 100 CLR CLR 275OVC424 58 57 14.7 0.0 0.677 20.6 39 08/17 15Z 59 55 284 2 0.00 0.00 572 587 18.5 -8.5 1017.5 100 CLR 217SCT248 252OVC423 59 57 15.0 0.0 0.686 19.7 42 08/17 18Z 66 54 281 3 0.00 0.00 572 587 19.0 -8.8 1017.6 100 CLR 217BKN248 251OVC412 66 57 15.0 0.0 0.666 19.9 45 08/17 21Z 71 55 284 9 0.00 0.00 573 587 19.3 -8.0 1016.7 92 CLR 210BKN239 297BKN389 73 67 15.0 0.0 0.648 20.6 48 08/18 00Z 66 55 288 9 0.00 0.00 574 587 20.1 -8.2 1015.9 80 CLR 210SCT239 335BKN414 73 65 15.0 0.0 0.571 21.9 51 08/18 03Z 58 55 274 6 0.00 0.00 574 588 20.7 -8.1 1016.8 59 CLR CLR 389BKN427 66 58 14.4 0.0 0.600 21.2 54 08/18 06Z 58 55 258 5 0.00 0.00 574 589 21.1 -7.1 1018.2 79 008FEW015 CLR 340BKN404 66 57 13.7 0.0 0.667 21.2 57 08/18 09Z 57 54 250 4 0.00 0.00 574 589 21.4 -6.1 1016.9 100 008BKN018 CLR 270OVC407 58 57 14.4 0.0 0.692 21.9 60 08/18 12Z 57 53 242 3 0.00 0.00 575 589 21.5 -5.8 1016.3 100 008BKN017 CLR 268OVC387 58 57 14.7 0.0 0.726 22.6 63 08/18 15Z 58 54 238 3 0.00 0.00 575 589 21.4 -5.9 1017.2 100 008BKN016 226FEW249 297OVC381 58 56 15.0 0.0 0.741 22.7 66 08/18 18Z 67 54 273 4 0.00 0.00 576 590 21.7 -6.7 1017.1 100 008BKN016 216SCT249 294OVC382 67 56 15.0 0.0 0.722 22.9 69 08/18 21Z 71 55 287 7 0.00 0.00 577 591 22.0 -5.4 1015.7 35 CLR 205FEW216 321SCT373 71 67 15.2 0.0 0.752 23.8 72 08/19 00Z 70 54 284 7 0.00 0.00 579 591 22.6 -4.9 1014.3 21 CLR 205FEW216 334FEW379 73 67 13.4 0.0 0.784 25.0 75 08/19 03Z 59 54 261 4 0.00 0.00 579 591 23.3 -5.0 1014.6 100 CLR CLR 328OVC430 70 59 14.7 0.0 0.821 25.3 78 08/19 06Z 57 55 259 4 0.00 0.00 579 592 23.5 -5.2 1015.3 100 CLR CLR 331OVC433 70 57 13.3 0.0 0.837 25.9 81 08/19 09Z 56 54 242 1 0.00 0.00 579 591 23.5 -5.1 1014.4 83 007FEW012 CLR 328BKN423 57 56 13.2 0.0 0.863 26.5 84 08/19 12Z 56 54 207 2 0.00 0.00 579 590 23.3 -5.5 1013.7 81 007FEW012 CLR 309BKN401 57 56 14.9 0.0 0.920 25.9 87 08/19 15Z 60 55 245 2 0.00 0.00 578 590 23.0 -5.9 1014.5 48 CLR 225FEW240 310SCT377 60 56 15.0 0.0 0.977 25.5 90 08/19 18Z 70 55 273 4 0.00 0.00 579 591 23.2 -6.0 1014.5 56 CLR 224FEW246 308BKN363 70 56 15.1 0.0 1.019 25.5 93 08/19 21Z 74 55 294 8 0.00 0.00 580 591 23.5 -6.1 1013.3 35 CLR 215FEW241 282SCT322 75 70 13.4 0.0 1.025 26.4 96 08/20 00Z 67 55 281 9 0.00 0.00 580 591 23.6 -6.0 1013.1 40 CLR 210FEW235 274SCT310 76 66 15.0 0.0 1.097 26.3 99 08/20 03Z 59 55 252 5 0.00 0.00 579 591 23.9 -5.5 1013.7 40 CLR 203FEW212 336SCT369 67 59 14.4 0.0 1.112 26.0 102 08/20 06Z 58 55 233 4 0.00 0.00 579 592 23.6 -5.4 1014.7 53 009FEW015 CLR 334SCT378 67 58 13.5 0.0 1.043 25.9 105 08/20 09Z 58 55 232 4 0.00 0.00 579 591 23.4 -5.2 1014.0 81 008BKN016 CLR 313SCT338 59 58 14.5 0.0 1.055 25.6 108 08/20 12Z 58 54 232 4 0.00 0.00 578 590 22.9 -5.8 1014.3 88 008BKN016 CLR 314SCT351 59 58 15.0 0.0 1.100 25.3 111 08/20 15Z 60 55 215 3 0.00 0.00 578 591 22.6 -6.2 1015.1 97 009BKN016 218FEW246 308BKN382 60 58 15.0 0.0 1.075 25.4 114 08/20 18Z 67 55 265 5 0.00 0.00 578 592 22.4 -6.2 1015.4 69 009SCT016 209FEW240 300BKN380 67 58 15.1 0.0 1.065 24.3 117 08/20 21Z 69 55 271 7 0.00 0.00 579 591 22.0 -5.5 1014.6 95 CLR 217FEW248 270BKN386 69 67 15.2 0.0 1.009 23.6 120 08/21 00Z 65 56 266 7 0.00 0.00 579 591 22.4 -5.7 1014.3 97 CLR 217FEW248 273BKN411 70 64 15.0 0.0 0.969 23.7 123 08/21 03Z 59 56 249 5 0.00 0.00 579 591 22.7 -5.5 1014.7 100 CLR CLR 318OVC429 65 59 14.4 0.0 0.960 23.4 126 08/21 06Z 58 55 192 4 0.00 0.00 579 592 22.6 -5.5 1015.5 100 011FEW014 CLR 334OVC423 65 58 13.5 0.0 0.974 23.7 129 08/21 09Z 57 55 204 5 0.00 0.00 578 591 22.0 -5.3 1015.4 37 011FEW014 CLR 371SCT407 58 57 13.5 0.0 1.012 23.7 132 08/21 12Z 58 55 196 4 0.00 0.00 578 591 21.8 -5.9 1015.2 53 008SCT014 CLR 375SCT411 58 57 13.5 0.0 0.991 23.4 135 08/21 15Z 59 55 233 4 0.00 0.00 577 591 21.7 -6.0 1016.0 90 008BKN014 CLR 366BKN412 59 57 15.0 0.0 0.981 23.5 138 08/21 18Z 66 55 241 4 0.00 0.00 577 591 21.4 -5.4 1016.5 95 008SCT014 CLR 356BKN410 66 57 15.2 0.0 0.994 22.9 141 08/21 21Z 69 55 265 7 0.00 0.00 577 591 21.4 -5.6 1016.1 100 CLR CLR 329OVC401 70 66 15.0 0.0 0.940 23.0 144 08/22 00Z 66 54 261 7 0.00 0.00 578 591 21.7 -5.9 1015.1 100 CLR CLR 321OVC373 70 66 15.0 0.0 0.889 23.6 147 08/22 03Z 59 54 228 4 0.00 0.00 578 591 21.8 -5.6 1014.8 100 CLR CLR 310OVC335 66 59 15.0 0.0 0.872 24.0 150 08/22 06Z 58 54 194 5 0.00 0.00 578 591 21.6 -5.8 1014.8 87 FEW CLR 308BKN332 66 58 13.4 0.0 0.877 24.7 153 08/22 09Z 57 54 187 5 0.00 0.00 578 590 21.8 -6.1 1014.2 6 FEW CLR 292FEW306 58 56 15.0 0.0 0.838 24.1 156 08/22 12Z 56 54 197 3 0.00 0.00 578 589 21.9 -6.4 1013.8 4 FEW CLR 289FEW302 58 56 14.9 0.0 0.806 24.0 159 08/22 15Z 59 54 199 3 0.00 0.00 578 590 21.7 -6.1 1014.6 1 CLR CLR 282FEW303 59 56 15.0 0.0 0.780 23.6 162 08/22 18Z 70 54 266 3 0.00 0.00 579 591 21.8 -5.5 1014.4 3 CLR CLR 281FEW296 71 56 15.0 0.0 0.719 23.6 165 08/22 21Z 74 54 290 8 0.00 0.00 579 590 22.4 -5.7 1012.7 0 CLR CLR CLR 75 70 13.3 0.0 0.667 24.9 168 08/23 00Z 67 54 285 9 0.00 0.00 580 590 23.2 -5.8 1011.9 0 CLR CLR CLR 75 66 15.1 0.0 0.655 25.5