Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 1APR 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 04/01 00Z 61 52 229 9 0.00 0.00 549 559 6.4 -20.4 1011.9 94 000BKN000 000FEW000 CLR **** **** 15.3 0.0 0.963 10.2 3 04/01 03Z 57 53 193 4 0.01 0.01 548 558 5.5 -21.0 1012.2 99 -RA 022OVC112 159BKN199 237BKN260 61 57 11.7 0.0 0.973 9.3 6 04/01 06Z 55 52 187 3 0.01 0.01 549 559 5.5 -20.6 1012.9 90 -RA 020BKN110 147BKN184 237SCT260 61 55 15.1 0.0 0.826 9.1 9 04/01 09Z 54 52 192 3 0.02 0.02 549 560 4.8 -18.3 1013.4 72 -TSRA 040BKN064 CLR 277SCT333 55 54 9.7 0.0 0.799 8.5 12 04/01 12Z 54 52 174 3 0.01 0.01 548 559 4.5 -17.7 1013.2 85 -RA 031BKN052 164SCT237 253BKN332 55 54 15.1 0.0 0.828 8.5 15 04/01 15Z 54 52 160 4 0.00 0.00 550 561 4.7 -16.7 1013.8 99 051FEW060 130BKN158 262BKN377 55 53 15.0 0.0 0.847 8.4 18 04/01 18Z 60 50 212 9 0.00 0.00 551 563 4.0 -15.3 1014.4 96 070SCT086 133SCT158 261BKN376 60 53 15.0 0.0 0.888 8.8 21 04/01 21Z 60 51 222 12 0.00 0.00 552 563 4.7 -14.9 1014.2 84 -RA 033BKN065 CLR 321FEW355 61 59 15.0 0.0 0.920 8.9 24 04/02 00Z 58 50 252 11 0.00 0.00 551 563 4.6 -13.9 1013.8 87 -RA 048BKN082 124FEW133 333FEW356 61 58 15.0 0.0 0.861 8.4 27 04/02 03Z 55 49 234 9 0.00 0.00 552 564 3.8 -14.2 1014.3 99 038OVC111 CLR CLR 58 55 15.0 0.0 0.824 7.7 30 04/02 06Z 54 52 227 12 0.04 0.01 551 564 4.2 -14.4 1015.3 99 -RA 020OVC105 CLR 391FEW403 58 54 7.9 0.0 0.792 7.9 33 04/02 09Z 52 48 292 8 0.05 0.01 550 564 3.5 -14.6 1016.9 100 -RA 000OVC089 CLR CLR 54 52 15.0 0.0 0.566 5.8 36 04/02 12Z 47 40 327 8 0.00 0.00 549 564 0.8 -15.4 1018.2 58 -RA 006BKN084 CLR CLR 54 47 15.0 0.0 0.321 4.1 39 04/02 15Z 49 41 318 9 0.00 0.00 549 565 0.8 -16.1 1019.3 1 CLR CLR CLR 49 47 15.0 0.0 0.305 3.9 45 04/02 21Z 58 35 293 9 0.00 0.00 552 568 1.9 -16.0 1019.2 0 CLR CLR CLR 58 54 15.0 0.0 0.302 6.9 48 04/03 00Z 58 40 287 14 0.00 0.00 553 568 3.2 -15.9 1017.7 0 CLR CLR CLR 59 54 15.0 0.0 0.388 8.6 51 04/03 03Z 52 41 287 6 0.00 0.00 554 569 3.1 -16.0 1018.7 0 CLR CLR CLR 58 51 15.0 0.0 0.403 9.1 54 04/03 06Z 51 42 309 4 0.00 0.00 555 570 5.1 -15.8 1019.0 0 CLR CLR CLR 58 51 15.0 0.0 0.338 9.2 57 04/03 09Z 49 40 337 6 0.00 0.00 555 571 7.2 -15.5 1019.1 0 CLR CLR CLR 51 49 15.0 0.0 0.267 10.9 60 04/03 12Z 47 35 24 3 0.00 0.00 556 571 8.6 -15.1 1018.8 0 CLR CLR CLR 51 47 15.0 0.0 0.250 9.6 63 04/03 15Z 49 32 69 2 0.00 0.00 557 573 8.8 -15.1 1019.6 0 CLR CLR CLR 49 46 15.0 0.0 0.216 9.6 66 04/03 18Z 60 33 44 7 0.00 0.00 557 574 9.7 -14.6 1019.6 0 CLR CLR CLR 60 46 15.0 0.0 0.213 8.4 69 04/03 21Z 67 35 28 7 0.00 0.00 559 574 10.4 -14.2 1017.9 1 CLR CLR CLR 67 60 15.0 0.0 0.228 12.3 72 04/04 00Z 68 38 327 7 0.00 0.00 560 574 10.6 -14.1 1016.6 19 CLR CLR 345FEW392 69 60 15.0 0.0 0.248 14.6 75 04/04 03Z 53 42 295 5 0.00 0.00 560 575 11.0 -14.3 1017.9 80 CLR CLR 350BKN396 68 53 15.0 0.0 0.270 14.4 78 04/04 06Z 53 42 23 1 0.00 0.00 560 575 11.3 -14.1 1018.4 69 CLR CLR 340BKN396 68 52 15.0 0.0 0.293 14.1 81 04/04 09Z 52 40 68 2 0.00 0.00 560 574 11.0 -14.0 1018.0 84 CLR CLR 345BKN373 53 52 15.0 0.0 0.316 14.3 84 04/04 12Z 51 39 65 2 0.00 0.00 559 573 10.9 -14.6 1017.0 83 CLR CLR 341BKN377 53 51 15.0 0.0 0.314 14.4 87 04/04 15Z 53 40 55 3 0.00 0.00 559 573 10.8 -14.9 1017.7 86 CLR CLR 321BKN388 53 50 15.0 0.0 0.338 14.5 90 04/04 18Z 65 45 35 1 0.00 0.00 559 573 11.5 -14.9 1017.3 93 CLR CLR 308BKN382 65 50 15.0 0.0 0.344 15.0 93 04/04 21Z 72 44 281 4 0.00 0.00 559 573 11.5 -15.3 1015.6 100 CLR CLR 278OVC363 72 66 15.0 0.0 0.385 16.7 96 04/05 00Z 71 44 284 5 0.00 0.00 560 572 12.0 -15.4 1014.6 100 CLR CLR 272OVC354 73 65 15.0 0.0 0.455 17.4 99 04/05 03Z 60 45 299 5 0.00 0.00 559 572 12.1 -15.8 1015.0 100 CLR CLR 258OVC338 71 60 15.0 0.0 0.490 17.5 102 04/05 06Z 57 45 303 3 0.00 0.00 559 572 12.3 -16.0 1015.9 100 CLR CLR 259OVC347 71 57 15.0 0.0 0.485 16.8 105 04/05 09Z 56 44 17 1 0.00 0.00 558 571 12.3 -17.1 1015.5 100 CLR FEW 256OVC345 57 56 15.0 0.0 0.530 16.5 108 04/05 12Z 55 44 340 2 0.00 0.00 557 570 12.2 -17.0 1015.0 100 CLR 194SCT241 255BKN338 57 55 15.0 0.0 0.636 15.9 111 04/05 15Z 56 46 332 1 0.00 0.00 556 570 11.7 -17.1 1016.3 98 CLR 157BKN241 265SCT332 57 54 15.0 0.0 0.646 14.0 114 04/05 18Z 65 47 301 3 0.00 0.00 556 570 11.4 -17.0 1016.4 88 CLR 158BKN239 253BKN320 65 54 15.0 0.0 0.692 13.2 117 04/05 21Z 66 48 293 9 0.00 0.00 556 570 10.9 -16.7 1015.7 14 CLR 129FEW146 276FEW319 68 65 15.0 0.0 0.731 13.3 120 04/06 00Z 62 48 279 10 0.00 0.00 556 569 11.0 -16.6 1015.4 11 CLR 128FEW145 274FEW316 68 62 15.0 0.0 0.679 13.3 123 04/06 03Z 55 50 297 7 0.00 0.00 556 569 11.0 -16.5 1016.2 39 CLR 214FEW233 280SCT324 62 55 15.0 0.0 0.636 13.3 126 04/06 06Z 53 50 292 4 0.00 0.00 555 569 10.3 -16.6 1017.6 24 CLR 216FEW233 283FEW322 62 53 13.5 0.0 0.592 10.7 129 04/06 09Z 52 49 236 2 0.00 0.00 554 569 9.4 -16.5 1017.8 76 FEW 135FEW162 280BKN328 53 51 15.0 0.0 0.587 9.8 132 04/06 12Z 50 47 139 0 0.00 0.00 553 568 9.2 -17.2 1017.8 48 CLR 130FEW153 279SCT324 53 50 15.0 0.0 0.595 8.8 135 04/06 15Z 52 48 142 1 0.00 0.00 552 568 8.7 -17.0 1018.8 9 CLR CLR 280FEW344 52 50 15.0 0.0 0.638 8.7 138 04/06 18Z 60 48 254 1 0.00 0.00 553 569 8.5 -16.3 1019.1 10 016FEW021 CLR 286FEW342 61 49 15.0 0.0 0.634 9.1 141 04/06 21Z 65 46 288 8 0.00 0.00 554 570 7.7 -15.8 1018.1 0 CLR CLR CLR 65 60 15.0 0.0 0.705 11.3 144 04/07 00Z 63 47 293 8 0.00 0.00 555 569 7.6 -15.4 1016.6 1 CLR CLR CLR 65 60 15.0 0.0 0.769 12.6 147 04/07 03Z 55 48 309 6 0.00 0.00 555 569 7.7 -15.4 1016.6 46 CLR CLR 288SCT365 63 55 15.1 0.0 0.742 12.6 150 04/07 06Z 54 48 22 1 0.00 0.00 554 568 7.0 -15.7 1016.7 65 CLR CLR 275BKN347 63 53 15.0 0.0 0.815 11.1 153 04/07 09Z 55 48 131 6 0.00 0.00 551 565 5.8 -16.7 1016.1 73 -RA 007BKN068 CLR 260FEW297 56 53 15.0 0.0 0.799 10.1 156 04/07 12Z 55 53 163 7 0.05 0.05 548 561 5.6 -18.5 1014.8 78 -TSRA 013BKN068 138FEW154 258FEW295 56 53 5.2 0.0 0.968 9.5 159 04/07 15Z 54 53 276 3 0.16 0.04 547 560 4.6 -19.8 1015.6 92 -TSRA 005BKN095 118BKN167 CLR 55 54 14.1 0.0 0.825 8.5 162 04/07 18Z 59 52 226 5 0.02 0.02 545 558 4.4 -21.7 1016.2 84 -TSRA 006BKN075 118SCT167 CLR 59 54 14.8 0.0 0.638 8.3 165 04/07 21Z 62 48 259 11 0.00 0.00 545 559 3.8 -21.3 1015.7 57 064FEW075 126BKN175 CLR 62 59 15.0 0.0 0.578 9.0 168 04/08 00Z 59 48 272 11 0.00 0.00 548 560 4.6 -19.4 1014.7 30 067FEW078 126SCT176 CLR 62 59 15.0 0.0 0.605 8.1