Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 27APR 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 04/27 12Z 52 47 288 7 0.00 0.00 541 555 1.1 -23.9 1015.9 98 -RA 000OVC000 CLR CLR **** **** 12.6 0.0 0.562 6.1 3 04/27 15Z 53 47 302 5 0.02 0.02 542 556 1.6 -22.4 1017.0 80 -TSRA 022BKN080 CLR CLR 53 51 14.8 0.0 0.601 5.4 6 04/27 18Z 57 46 292 5 0.00 0.00 544 558 2.0 -18.9 1017.5 74 -RA 030BKN074 CLR CLR 57 51 14.9 0.0 0.612 6.5 9 04/27 21Z 57 46 277 10 0.00 0.00 546 561 2.4 -17.2 1017.7 41 -RA 046SCT070 CLR CLR 60 56 15.0 0.0 0.602 7.3 12 04/28 00Z 56 46 278 12 0.00 0.00 547 562 3.4 -17.6 1017.5 58 050BKN070 CLR CLR 60 56 15.0 0.0 0.581 7.3 15 04/28 03Z 52 46 277 7 0.00 0.00 548 563 4.1 -18.4 1018.1 27 060SCT067 CLR CLR 56 52 15.0 0.0 0.529 8.2 18 04/28 06Z 50 45 263 4 0.00 0.00 547 563 4.4 -19.5 1018.9 16 060FEW067 CLR 294FEW317 56 50 15.0 0.0 0.507 8.7 21 04/28 09Z 50 46 221 3 0.00 0.00 546 562 4.6 -20.4 1018.8 92 CLR CLR 259BKN333 50 50 15.0 0.0 0.532 8.9 24 04/28 12Z 49 46 186 3 0.00 0.00 545 561 4.6 -22.2 1018.9 83 CLR 204SCT237 250BKN314 51 49 15.0 0.0 0.541 7.9 27 04/28 15Z 53 47 189 3 0.00 0.00 544 561 4.6 -23.7 1020.0 6 014FEW020 CLR CLR 53 49 15.0 0.0 0.520 8.4 30 04/28 18Z 60 47 255 2 0.00 0.00 545 562 4.7 -23.7 1020.4 6 014FEW019 CLR CLR 60 49 15.0 0.0 0.517 8.5 33 04/28 21Z 63 46 287 9 0.00 0.00 547 563 4.9 -21.8 1019.3 0 CLR CLR CLR 64 60 15.0 0.0 0.517 10.8 36 04/29 00Z 62 47 280 9 0.00 0.00 550 565 7.2 -18.9 1018.0 0 CLR CLR CLR 65 59 15.0 0.0 0.482 12.0 39 04/29 03Z 54 48 277 6 0.00 0.00 551 567 7.6 -16.4 1018.6 0 CLR CLR CLR 62 54 15.0 0.0 0.492 11.4 42 04/29 06Z 53 47 214 3 0.00 0.00 553 569 7.8 -15.3 1019.0 0 CLR CLR CLR 62 52 15.0 0.0 0.504 12.2 45 04/29 09Z 51 48 238 3 0.00 0.00 554 569 8.0 -14.8 1018.9 0 CLR CLR CLR 53 51 15.0 0.0 0.536 12.1 48 04/29 12Z 50 48 207 3 0.00 0.00 554 570 8.1 -14.6 1019.2 5 011FEW016 CLR CLR 53 50 15.0 0.0 0.536 11.8 51 04/29 15Z 54 49 176 3 0.00 0.00 554 570 8.1 -15.2 1019.6 15 010FEW015 CLR CLR 54 50 15.0 0.0 0.526 12.1 54 04/29 18Z 62 49 276 3 0.00 0.00 555 571 8.8 -15.5 1018.9 8 010FEW015 CLR CLR 62 50 15.0 0.0 0.502 12.5 57 04/29 21Z 64 49 284 10 0.00 0.00 557 572 9.6 -15.0 1017.5 0 CLR CLR CLR 65 62 15.0 0.0 0.478 12.7 60 04/30 00Z 60 49 267 9 0.00 0.00 557 571 10.4 -14.9 1016.9 0 CLR CLR CLR 65 59 15.0 0.0 0.489 13.0 63 04/30 03Z 53 48 259 7 0.00 0.00 558 572 11.4 -14.0 1016.7 0 CLR CLR CLR 60 53 15.0 0.0 0.421 13.2 66 04/30 06Z 51 48 222 3 0.00 0.00 558 572 11.5 -13.5 1017.2 5 014FEW018 CLR CLR 60 51 15.0 0.0 0.488 13.5 69 04/30 09Z 50 48 200 3 0.00 0.00 559 572 12.4 -13.2 1015.9 27 012SCT017 CLR CLR 51 51 15.0 0.0 0.580 15.0 72 04/30 12Z 50 47 180 3 0.00 0.00 559 572 12.4 -13.3 1015.2 16 011FEW016 CLR CLR 51 50 15.1 0.0 0.606 14.2 75 04/30 15Z 53 48 153 4 0.00 0.00 560 572 12.2 -13.3 1015.4 55 CLR CLR 288BKN344 53 50 15.0 0.0 0.636 14.6 78 04/30 18Z 62 49 242 2 0.00 0.00 560 573 12.5 -13.3 1015.0 53 CLR CLR 271BKN327 62 50 15.0 0.0 0.652 14.8 81 04/30 21Z 66 51 298 8 0.00 0.00 562 573 13.4 -13.4 1013.8 0 CLR CLR CLR 67 62 15.0 0.0 0.642 14.3 84 05/01 00Z 64 50 285 9 0.00 0.00 563 574 14.0 -12.3 1012.9 0 CLR CLR CLR 67 61 15.0 0.0 0.598 16.8 87 05/01 03Z 55 50 250 4 0.00 0.00 563 575 14.3 -11.7 1013.3 0 CLR CLR CLR 64 55 15.0 0.0 0.558 17.0 90 05/01 06Z 53 50 206 4 0.00 0.00 564 576 14.3 -11.7 1014.0 1 CLR CLR CLR 64 53 13.4 0.0 0.573 17.7 93 05/01 09Z 52 50 187 4 0.00 0.00 564 576 14.4 -11.5 1013.4 15 FEW CLR 287FEW324 53 52 15.0 0.0 0.589 18.2 96 05/01 12Z 52 49 167 4 0.00 0.00 564 575 14.7 -11.8 1013.4 12 CLR CLR 313FEW345 53 52 15.0 0.0 0.611 18.1 99 05/01 15Z 55 50 174 3 0.00 0.00 564 575 14.0 -12.2 1014.3 9 CLR CLR 374FEW414 55 51 15.0 0.0 0.624 16.8 102 05/01 18Z 63 51 209 2 0.00 0.00 564 576 13.8 -12.3 1014.4 34 CLR CLR 316SCT378 63 51 15.0 0.0 0.586 16.6 105 05/01 21Z 70 52 292 7 0.00 0.00 565 575 14.1 -11.9 1012.7 88 CLR CLR 314BKN404 70 63 15.0 0.0 0.550 16.4 108 05/02 00Z 64 52 285 10 0.00 0.00 564 574 14.4 -12.3 1012.2 94 CLR CLR 309BKN414 71 61 15.2 0.0 0.538 17.8 111 05/02 03Z 56 51 229 4 0.00 0.00 563 573 14.0 -12.4 1012.6 100 CLR CLR 304OVC404 64 56 15.0 0.0 0.489 16.9 114 05/02 06Z 54 50 179 7 0.00 0.00 562 573 13.8 -13.2 1012.5 100 CLR CLR 300OVC396 64 54 14.0 0.0 0.508 15.5 117 05/02 09Z 53 49 214 6 0.00 0.00 560 571 12.6 -13.6 1012.8 100 012FEW018 CLR 289OVC380 54 53 15.0 0.0 0.540 11.5 120 05/02 12Z 53 47 206 7 0.00 0.00 559 569 12.8 -15.2 1012.6 100 011SCT020 CLR 283OVC378 54 52 15.0 0.0 0.545 9.8 123 05/02 15Z 53 47 218 8 0.00 0.00 558 569 12.5 -15.7 1013.4 100 013BKN022 224FEW241 251OVC370 53 52 15.0 0.0 0.489 6.7 126 05/02 18Z 56 46 238 11 0.00 0.00 557 569 12.0 -15.7 1013.8 100 015BKN024 224FEW241 254OVC368 56 52 15.0 0.0 0.384 6.2 129 05/02 21Z 58 45 249 14 0.00 0.00 557 568 11.1 -15.8 1013.5 49 FEW CLR 292SCT355 58 56 15.0 0.0 0.293 7.3 132 05/03 00Z 57 43 256 13 0.00 0.00 556 566 11.0 -16.1 1012.5 53 FEW CLR 299BKN360 58 56 15.0 0.0 0.261 7.1 135 05/03 03Z 52 43 260 12 0.00 0.00 555 565 10.8 -16.8 1012.5 77 CLR CLR 295BKN360 57 52 15.0 0.0 0.316 6.4 138 05/03 06Z 51 43 263 12 0.00 0.00 554 564 9.7 -17.1 1012.7 88 CLR CLR 268BKN351 56 51 15.0 0.0 0.373 5.6 141 05/03 09Z 51 43 266 10 0.00 0.00 552 562 7.5 -18.1 1012.2 100 CLR 197BKN239 239OVC317 51 51 15.0 0.0 0.436 5.1 144 05/03 12Z 51 43 255 6 0.00 0.00 550 560 6.0 -19.0 1011.7 100 FEW 181BKN238 238OVC311 51 51 15.0 0.0 0.460 5.1 147 05/03 15Z 53 44 238 6 0.00 0.00 549 559 4.8 -19.5 1012.2 100 026FEW028 161OVC237 237OVC286 53 51 15.0 0.0 0.493 5.2 150 05/03 18Z 56 43 257 6 0.00 0.00 548 558 1.4 -20.3 1012.4 100 027FEW032 150OVC237 237OVC280 56 51 15.0 0.0 0.514 6.5 153 05/03 21Z 60 43 274 10 0.00 0.00 548 558 1.6 -21.1 1011.9 97 041FEW049 162BKN208 239BKN266 60 57 15.0 0.0 0.539 7.8 156 05/04 00Z 58 43 265 11 0.00 0.00 548 557 2.5 -20.7 1011.0 85 044FEW052 167BKN220 237BKN266 60 57 15.0 0.0 0.516 7.5 159 05/04 03Z 53 43 270 7 0.00 0.00 546 556 2.8 -21.2 1011.9 3 FEW 202FEW222 CLR 58 53 15.0 0.0 0.516 6.7 162 05/04 06Z 51 45 250 5 0.00 0.00 545 556 2.6 -21.5 1012.7 3 075FEW079 CLR CLR 58 51 15.0 0.0 0.571 6.6 165 05/04 09Z 50 45 211 5 0.00 0.00 545 555 2.2 -21.1 1012.4 8 075FEW087 CLR CLR 51 50 15.0 0.0 0.612 6.3 168 05/04 12Z 49 45 174 3 0.00 0.00 544 555 1.7 -21.2 1012.7 13 069FEW082 CLR CLR 51 49 15.0 0.0 0.592 6.2