Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 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 12Z 54 52 200 3 0.00 0.00 549 559 4.6 -17.4 1012.9 95 000FEW000 000SCT000 000BKN000 **** **** 13.8 0.0 0.848 8.7 3 04/01 15Z 55 52 208 2 0.01 0.01 550 561 4.5 -16.2 1013.4 99 -RA 055FEW063 127BKN156 262BKN379 55 53 15.0 0.0 0.851 8.7 6 04/01 18Z 61 50 216 11 0.00 0.00 551 563 4.3 -15.3 1014.1 80 -RA 085SCT102 129SCT152 258BKN381 61 53 15.0 0.0 0.885 9.2 9 04/01 21Z 62 50 239 13 0.00 0.00 551 563 4.4 -15.2 1013.9 64 074BKN101 CLR 345FEW364 62 60 14.9 0.0 0.917 9.5 12 04/02 00Z 58 50 259 11 0.00 0.00 551 563 4.5 -13.9 1013.8 79 064BKN099 126FEW134 346FEW365 62 57 15.0 0.0 0.854 8.4 15 04/02 03Z 56 49 226 9 0.00 0.00 552 563 4.5 -14.0 1014.1 99 -RA 034OVC111 CLR CLR 57 56 15.0 0.0 0.814 7.9 18 04/02 06Z 55 52 228 12 0.03 0.01 552 564 4.3 -14.4 1015.1 99 -RA 018OVC104 CLR 390FEW402 57 55 7.2 0.0 0.775 7.9 21 04/02 09Z 52 47 302 9 0.05 0.01 550 565 2.3 -14.8 1017.1 100 -RA 000OVC085 CLR CLR 55 52 15.0 0.0 0.547 5.9 24 04/02 12Z 48 40 327 8 0.00 0.00 549 564 0.3 -15.7 1018.6 79 -RA 014BKN073 CLR CLR 55 48 15.0 0.0 0.320 4.0 27 04/02 15Z 49 41 314 9 0.00 0.00 549 565 1.2 -16.9 1019.9 1 CLR CLR CLR 49 47 15.0 0.0 0.281 4.3 30 04/02 18Z 55 35 321 9 0.00 0.00 550 567 1.7 -16.2 1020.5 0 CLR CLR CLR 55 47 15.0 0.0 0.285 4.4 33 04/02 21Z 59 36 293 10 0.00 0.00 552 568 1.3 -16.1 1019.6 0 CLR CLR CLR 59 55 15.0 0.0 0.309 7.2 36 04/03 00Z 59 40 289 12 0.00 0.00 553 568 3.7 -16.1 1017.9 0 CLR CLR CLR 60 54 15.0 0.0 0.397 9.3 39 04/03 03Z 51 42 279 7 0.00 0.00 553 569 3.6 -16.0 1019.4 1 CLR CLR CLR 59 51 15.0 0.0 0.367 9.2 42 04/03 06Z 50 43 321 4 0.00 0.00 554 570 5.7 -16.2 1019.7 0 CLR CLR CLR 59 50 15.0 0.0 0.308 9.4 45 04/03 09Z 49 40 343 5 0.00 0.00 555 571 7.7 -15.5 1019.2 0 CLR CLR CLR 51 49 15.0 0.0 0.244 11.2 48 04/03 12Z 47 34 44 2 0.00 0.00 555 571 8.1 -15.7 1018.9 1 CLR CLR CLR 50 47 15.0 0.0 0.245 9.9 51 04/03 15Z 49 32 25 2 0.00 0.00 556 572 9.8 -15.7 1020.0 0 CLR CLR CLR 49 46 15.0 0.0 0.228 9.7 54 04/03 18Z 61 35 38 6 0.00 0.00 557 574 11.0 -15.5 1019.9 0 CLR CLR CLR 61 46 15.0 0.0 0.239 9.1 57 04/03 21Z 68 38 35 8 0.00 0.00 559 574 11.6 -15.6 1018.1 2 CLR CLR 346FEW368 68 61 15.0 0.0 0.263 13.0 60 04/04 00Z 69 40 329 8 0.00 0.00 560 574 11.4 -15.3 1016.8 3 CLR CLR 346FEW367 70 61 15.0 0.0 0.266 15.2 63 04/04 03Z 53 43 302 6 0.00 0.00 560 575 12.0 -15.0 1018.0 0 CLR CLR CLR 69 53 15.0 0.0 0.312 14.7 66 04/04 06Z 53 43 252 0 0.00 0.00 560 575 11.9 -14.5 1018.6 1 CLR CLR CLR 69 52 15.0 0.0 0.386 14.8 69 04/04 09Z 52 40 98 2 0.00 0.00 560 575 12.3 -14.5 1018.1 18 CLR CLR 347FEW375 53 52 15.0 0.0 0.370 15.2 72 04/04 12Z 52 39 75 2 0.00 0.00 559 574 12.4 -14.8 1017.4 12 CLR CLR 348FEW375 53 51 15.0 0.0 0.324 14.7 75 04/04 15Z 53 40 74 2 0.00 0.00 559 574 12.7 -15.2 1018.1 0 CLR CLR CLR 53 50 15.0 0.0 0.325 15.0 78 04/04 18Z 66 45 345 1 0.00 0.00 560 575 12.7 -15.2 1017.6 3 CLR CLR 357FEW376 66 50 15.0 0.0 0.337 14.7 81 04/04 21Z 73 46 278 1 0.00 0.00 561 575 11.7 -14.8 1015.9 6 CLR CLR 357FEW372 74 66 15.0 0.0 0.369 17.3 84 04/05 00Z 71 46 263 3 0.00 0.00 561 574 12.3 -14.9 1014.6 17 CLR CLR 343FEW369 75 65 15.0 0.0 0.419 18.2 87 04/05 03Z 64 43 264 3 0.00 0.00 561 574 13.3 -15.2 1014.8 50 CLR CLR 330SCT365 73 62 15.0 0.0 0.405 18.3 90 04/05 06Z 59 44 282 1 0.00 0.00 561 574 13.5 -14.9 1015.7 45 CLR CLR 328SCT365 73 59 15.0 0.0 0.417 18.1 93 04/05 09Z 57 45 102 2 0.00 0.00 560 574 13.3 -15.3 1015.6 6 CLR CLR 335FEW346 59 57 15.0 0.0 0.423 17.8 96 04/05 12Z 56 44 87 2 0.00 0.00 560 573 13.2 -15.4 1015.0 3 CLR CLR 334FEW345 59 56 15.0 0.0 0.410 18.0 99 04/05 15Z 58 45 71 2 0.00 0.00 560 573 13.2 -15.3 1015.5 5 CLR CLR 334FEW348 58 55 15.0 0.0 0.400 17.8 102 04/05 18Z 70 48 296 1 0.00 0.00 560 573 13.4 -15.3 1015.3 21 CLR CLR 325FEW363 70 55 15.0 0.0 0.374 17.3 105 04/05 21Z 73 46 280 7 0.00 0.00 561 573 13.3 -15.2 1014.4 99 CLR CLR 296OVC356 73 70 15.0 0.0 0.423 18.3 108 04/06 00Z 70 47 288 8 0.00 0.00 561 572 13.8 -15.2 1013.5 60 CLR CLR 295BKN352 74 69 15.0 0.0 0.499 19.5 111 04/06 03Z 59 46 311 4 0.00 0.00 560 573 13.3 -14.8 1014.3 1 CLR CLR 324FEW335 70 59 15.0 0.0 0.532 18.6 114 04/06 06Z 56 46 313 3 0.00 0.00 560 573 13.0 -15.4 1015.4 47 CLR CLR 279SCT329 70 56 15.0 0.0 0.532 17.6 117 04/06 09Z 55 45 321 2 0.00 0.00 559 572 13.2 -15.9 1015.4 72 CLR CLR 267BKN333 56 55 15.0 0.0 0.540 16.6 120 04/06 12Z 53 46 330 3 0.00 0.00 559 571 12.8 -16.1 1015.1 86 CLR CLR 287BKN358 56 53 15.0 0.0 0.542 16.1 123 04/06 15Z 56 47 331 1 0.00 0.00 558 571 12.2 -16.3 1015.9 100 CLR CLR 270OVC376 56 53 15.0 0.0 0.573 15.3 126 04/06 18Z 63 46 297 3 0.00 0.00 558 573 12.1 -16.4 1016.8 100 CLR 222FEW238 256OVC364 64 53 15.0 0.0 0.541 14.6 129 04/06 21Z 66 45 293 9 0.00 0.00 559 573 12.1 -16.2 1016.5 5 CLR 232FEW242 266FEW282 67 64 15.0 0.0 0.488 15.1 132 04/07 00Z 63 45 293 8 0.00 0.00 559 572 12.3 -15.1 1015.6 3 CLR 232FEW242 284FEW298 67 62 15.0 0.0 0.425 15.3 135 04/07 03Z 54 47 292 5 0.00 0.00 559 573 12.3 -14.0 1016.4 5 CLR CLR 360FEW379 63 54 15.0 0.0 0.386 14.6 138 04/07 06Z 52 48 275 2 0.00 0.00 559 573 11.8 -14.2 1016.9 5 CLR CLR 379FEW397 63 52 15.0 0.0 0.392 13.7 141 04/07 09Z 51 48 201 1 0.00 0.00 558 572 11.0 -14.8 1017.1 0 CLR CLR CLR 52 51 15.0 0.0 0.419 12.9 144 04/07 12Z 51 47 211 1 0.00 0.00 557 570 10.6 -15.0 1016.6 1 CLR CLR CLR 52 51 15.0 0.0 0.512 12.3 147 04/07 15Z 54 47 160 2 0.00 0.00 555 570 9.3 -15.8 1017.4 0 CLR CLR CLR 54 50 15.0 0.0 0.688 11.7 150 04/07 18Z 62 46 276 3 0.00 0.00 555 570 7.7 -16.5 1017.7 3 090FEW102 CLR CLR 63 50 15.0 0.0 0.878 11.1 153 04/07 21Z 64 52 285 9 0.00 0.00 555 569 7.3 -16.3 1016.6 69 032BKN064 CLR CLR 64 61 15.0 0.0 0.789 11.0 156 04/08 00Z 61 54 266 11 0.00 0.00 554 567 7.2 -16.4 1015.4 41 031SCT058 CLR CLR 65 60 15.0 0.0 0.725 10.1 159 04/08 03Z 55 52 272 7 0.00 0.00 553 566 6.4 -16.9 1016.2 44 016SCT029 CLR CLR 61 55 15.0 0.0 0.588 9.2 162 04/08 06Z 52 49 273 4 0.00 0.00 553 566 6.0 -17.4 1016.4 22 016FEW029 CLR CLR 61 52 15.0 0.0 0.527 9.3 165 04/08 09Z 51 49 277 3 0.00 0.00 552 565 5.1 -17.4 1016.5 0 CLR CLR CLR 52 51 15.0 0.0 0.550 8.7 168 04/08 12Z 50 47 265 3 0.00 0.00 551 564 4.5 -17.7 1015.7 3 CLR CLR 271FEW306 52 50 15.0 0.0 0.514 8.3