Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 4MAY 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 05/04 12Z 51 47 155 5 0.00 0.00 548 560 2.3 -20.7 1014.7 96 000FEW000 000BKN000 000BKN000 **** **** 15.0 0.0 0.590 7.5 3 05/04 15Z 54 48 159 2 0.00 0.00 548 560 2.6 -20.8 1015.0 97 034FEW053 228FEW237 238BKN284 54 50 15.0 0.0 0.556 7.6 6 05/04 18Z 60 46 265 5 0.00 0.00 548 561 2.1 -21.2 1015.6 87 035FEW053 222FEW236 238BKN282 60 50 15.0 0.0 0.625 8.3 9 05/04 21Z 60 46 279 10 0.00 0.00 548 561 3.1 -19.7 1015.0 100 042SCT064 157OVC237 237OVC290 61 59 15.0 0.0 0.805 8.6 12 05/05 00Z 58 46 285 9 0.00 0.00 548 560 4.1 -19.8 1014.4 100 062SCT094 140OVC237 237OVC298 61 57 15.0 0.0 0.816 8.1 15 05/05 03Z 54 48 279 6 0.00 0.00 549 561 4.5 -18.7 1014.0 100 067SCT090 136BKN223 241BKN299 58 54 15.0 0.0 0.836 7.9 18 05/05 06Z 53 49 274 5 0.00 0.00 549 562 4.2 -17.4 1015.0 100 065FEW097 143BKN233 240OVC320 58 53 15.1 0.0 0.903 7.7 21 05/05 09Z 52 50 273 5 0.11 0.00 550 562 3.6 -16.9 1014.5 100 -RA 012BKN113 118OVC238 238OVC336 53 52 4.4 0.0 1.018 6.9 24 05/05 12Z 52 50 268 6 0.09 0.01 550 562 3.3 -16.6 1014.2 100 -RA 006BKN116 119BKN212 252BKN337 53 52 12.1 0.0 1.011 6.5 27 05/05 15Z 52 50 240 4 0.04 0.01 551 564 3.2 -16.7 1015.4 100 -RA 000OVC109 157BKN236 257OVC306 52 52 11.3 0.0 1.020 6.6 30 05/05 18Z 54 50 234 3 0.02 0.01 553 566 4.2 -16.7 1016.1 100 -RA 000OVC095 156SCT233 262BKN309 54 52 15.0 0.0 0.967 6.9 33 05/05 21Z 56 50 233 2 0.00 0.01 554 568 5.9 -16.3 1016.3 100 -RA 000OVC072 126FEW143 241FEW267 56 54 15.0 0.0 0.981 7.3 36 05/06 00Z 58 51 279 5 0.00 0.00 556 569 6.0 -15.3 1015.6 99 -RA 008OVC065 126FEW143 CLR 58 54 15.0 0.0 0.943 8.0 39 05/06 03Z 56 51 285 5 0.00 0.00 558 571 6.7 -14.5 1016.5 88 014BKN047 CLR CLR 58 56 15.0 0.0 0.939 8.8 42 05/06 06Z 53 51 253 4 0.00 0.00 559 574 8.5 -13.0 1017.8 80 016BKN047 147FEW156 CLR 58 53 15.0 0.0 1.058 8.9 45 05/06 09Z 54 52 264 3 0.00 0.00 559 575 9.7 -12.9 1018.3 58 006BKN022 142FEW153 CLR 54 53 15.0 0.0 1.019 8.4 48 05/06 12Z 53 50 265 4 0.00 0.00 560 575 10.4 -12.9 1018.4 73 007BKN023 142FEW153 CLR 54 52 15.1 0.0 1.030 8.6 51 05/06 15Z 54 50 269 3 0.00 0.00 561 577 11.5 -12.4 1019.7 97 007BKN027 CLR CLR 54 53 15.0 0.0 0.983 8.8 54 05/06 18Z 60 51 273 2 0.00 0.00 563 579 13.1 -11.9 1019.7 95 008BKN026 CLR CLR 60 53 15.0 0.0 0.933 10.6 57 05/06 21Z 64 53 284 9 0.00 0.00 564 580 15.2 -11.9 1019.0 20 022FEW027 CLR CLR 65 61 15.0 0.0 0.863 11.5 60 05/07 00Z 60 52 276 10 0.00 0.00 565 580 15.7 -11.6 1018.5 11 022FEW027 CLR CLR 65 59 15.0 0.0 0.812 13.2 63 05/07 03Z 54 50 264 6 0.00 0.00 565 581 16.5 -11.7 1018.9 5 015FEW019 CLR CLR 60 54 15.0 0.0 0.745 13.4 66 05/07 06Z 54 50 249 4 0.00 0.00 566 582 16.9 -11.9 1019.3 34 012SCT019 CLR CLR 60 53 15.0 0.0 0.718 14.2 69 05/07 09Z 54 50 254 4 0.00 0.00 566 582 16.4 -11.7 1018.9 76 010BKN019 CLR CLR 54 54 15.0 0.0 0.657 15.0 72 05/07 12Z 53 49 239 3 0.00 0.00 565 581 16.4 -11.6 1018.6 81 006BKN020 CLR CLR 54 53 15.0 0.0 0.631 15.1 75 05/07 15Z 55 49 233 3 0.00 0.00 565 582 16.3 -11.5 1019.4 88 000BKN022 CLR CLR 55 53 15.0 0.0 0.600 15.5 78 05/07 18Z 61 50 284 5 0.00 0.00 566 582 16.1 -11.3 1018.9 68 006BKN021 CLR CLR 61 53 15.0 0.0 0.544 15.9 81 05/07 21Z 63 50 288 9 0.00 0.00 566 582 16.4 -11.1 1018.0 0 CLR CLR CLR 64 61 15.0 0.0 0.457 16.7 84 05/08 00Z 60 50 285 7 0.00 0.00 567 581 16.3 -11.1 1017.1 0 CLR CLR CLR 64 59 15.0 0.0 0.393 18.4 87 05/08 03Z 54 50 275 6 0.00 0.00 567 581 16.5 -10.9 1017.6 0 CLR CLR CLR 60 54 15.0 0.0 0.371 17.9 90 05/08 06Z 53 49 254 5 0.00 0.00 566 581 16.6 -10.7 1017.9 16 010FEW017 CLR CLR 60 52 13.5 0.0 0.379 17.7 93 05/08 09Z 52 49 234 4 0.00 0.00 566 580 16.5 -10.6 1017.2 67 010BKN017 CLR 352FEW363 53 52 13.8 0.0 0.394 17.4 96 05/08 12Z 52 48 233 5 0.00 0.00 565 579 15.4 -10.3 1017.5 71 010BKN018 CLR 333FEW383 53 52 15.0 0.0 0.411 15.5 99 05/08 15Z 54 48 234 5 0.00 0.00 564 579 14.6 -10.9 1018.0 88 011BKN017 CLR 269BKN384 54 52 15.0 0.0 0.416 15.1 102 05/08 18Z 62 47 250 5 0.00 0.00 564 579 13.9 -10.9 1017.8 47 011SCT017 CLR 272SCT385 62 52 15.0 0.0 0.401 15.7 105 05/08 21Z 63 47 256 8 0.00 0.00 564 579 14.2 -11.2 1017.2 0 CLR CLR CLR 63 62 15.0 0.0 0.458 14.8 108 05/09 00Z 61 46 265 8 0.00 0.00 565 578 14.9 -11.5 1016.0 0 CLR CLR CLR 64 61 15.0 0.0 0.557 16.0 111 05/09 03Z 56 48 240 6 0.00 0.00 566 579 14.8 -12.3 1016.0 4 CLR CLR 363FEW380 61 56 15.0 0.0 0.557 17.6 114 05/09 06Z 53 49 194 4 0.00 0.00 566 580 16.1 -12.2 1016.0 3 CLR CLR 363FEW378 61 53 15.0 0.0 0.406 16.2 117 05/09 09Z 52 50 178 4 0.00 0.00 566 579 15.7 -12.5 1015.2 1 CLR CLR CLR 53 52 15.0 0.0 0.466 17.3 120 05/09 12Z 51 48 143 2 0.00 0.00 566 579 14.8 -12.7 1014.6 1 CLR CLR CLR 53 51 15.0 0.0 0.491 18.9 123 05/09 15Z 57 49 338 0 0.00 0.00 566 579 14.7 -12.6 1014.5 0 CLR CLR CLR 57 51 15.0 0.0 0.527 17.8 126 05/09 18Z 67 51 294 4 0.00 0.00 567 579 15.3 -12.8 1014.1 0 CLR CLR CLR 67 51 15.0 0.0 0.464 17.3 129 05/09 21Z 72 51 289 8 0.00 0.00 568 579 16.3 -12.9 1012.2 3 FEW CLR CLR 73 66 15.0 0.0 0.418 19.3 132 05/10 00Z 68 50 292 8 0.00 0.00 570 579 17.1 -11.7 1010.9 2 FEW CLR CLR 74 65 15.0 0.0 0.412 21.3 135 05/10 03Z 59 49 251 4 0.00 0.00 571 580 18.8 -9.8 1011.2 0 CLR CLR CLR 68 59 15.0 0.0 0.368 21.7 138 05/10 06Z 56 49 197 3 0.00 0.00 571 581 18.6 -8.9 1011.9 0 CLR CLR CLR 68 56 15.0 0.0 0.375 22.4 141 05/10 09Z 55 49 227 2 0.00 0.00 572 582 20.0 -9.1 1011.4 2 CLR CLR 422FEW433 56 55 15.0 0.0 0.400 23.7 144 05/10 12Z 54 49 79 1 0.00 0.00 572 582 19.8 -9.1 1011.5 4 CLR CLR 410FEW442 56 54 15.0 0.0 0.432 22.9 147 05/10 15Z 62 50 56 0 0.00 0.00 572 582 20.5 -8.5 1012.5 30 CLR CLR 364SCT445 62 54 15.0 0.0 0.430 21.8 150 05/10 18Z 74 52 310 3 0.00 0.00 573 583 20.7 -8.3 1012.2 21 CLR CLR 369FEW441 75 54 15.0 0.0 0.425 21.4 153 05/10 21Z 81 52 295 5 0.00 0.00 574 584 20.0 -8.5 1011.6 29 FEW CLR 361SCT421 81 74 15.0 0.0 0.449 24.3 156 05/11 00Z 75 52 285 8 0.00 0.00 575 584 20.2 -8.4 1011.3 24 FEW CLR 352FEW417 83 72 15.2 0.0 0.471 25.7 159 05/11 03Z 64 53 293 5 0.00 0.00 575 585 20.2 -8.2 1012.2 13 CLR CLR 355FEW383 75 64 15.0 0.0 0.539 26.1 162 05/11 06Z 61 51 211 1 0.00 0.00 575 586 20.2 -7.8 1013.2 10 CLR CLR 374FEW402 75 61 15.0 0.0 0.534 25.6 165 05/11 09Z 60 49 268 1 0.00 0.00 575 586 20.5 -7.7 1013.6 6 CLR CLR 423FEW446 61 59 15.0 0.0 0.559 25.2 168 05/11 12Z 60 49 33 0 0.00 0.00 574 586 20.0 -7.9 1013.7 18 CLR CLR 419FEW457 61 59 15.0 0.0 0.593 24.9