Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 27MAR 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 03/27 12Z 57 42 84 1 0.00 0.00 566 578 16.2 -14.3 1014.2 100 CLR 000BKN000 000OVC000 **** **** 15.0 0.0 0.324 17.4 3 03/27 15Z 58 39 73 2 0.00 0.00 566 579 16.0 -14.6 1015.0 100 CLR 235FEW245 250OVC394 58 56 15.0 0.0 0.326 17.6 6 03/27 18Z 67 39 6 3 0.00 0.00 566 579 16.2 -14.9 1015.3 100 CLR CLR 247OVC391 67 56 15.0 0.0 0.362 17.6 9 03/27 21Z 71 44 5 3 0.00 0.00 567 579 16.6 -15.2 1014.0 100 CLR 218BKN244 244OVC376 71 67 15.0 0.0 0.416 17.4 12 03/28 00Z 74 46 312 6 0.00 0.00 567 577 16.2 -15.7 1012.5 70 CLR 218SCT244 247BKN366 74 67 15.0 0.0 0.453 19.0 15 03/28 03Z 58 46 302 5 0.00 0.00 566 577 16.0 -15.9 1013.5 70 CLR 206SCT225 245BKN285 74 58 15.0 0.0 0.446 18.7 18 03/28 06Z 56 44 266 3 0.00 0.00 565 577 15.9 -16.3 1014.4 77 CLR 203BKN234 245BKN294 74 56 15.0 0.0 0.438 18.5 21 03/28 09Z 54 44 265 2 0.00 0.00 564 577 15.2 -16.4 1014.8 38 CLR 198SCT234 271SCT300 57 54 15.0 0.0 0.401 18.3 24 03/28 12Z 53 44 289 3 0.00 0.00 563 576 15.4 -16.5 1015.0 36 CLR 198SCT230 270FEW302 57 52 15.0 0.0 0.378 18.1 27 03/28 15Z 55 45 126 2 0.00 0.00 563 576 14.6 -16.1 1016.1 0 CLR CLR CLR 55 51 15.0 0.0 0.339 17.8 30 03/28 18Z 64 46 310 5 0.00 0.00 563 577 14.5 -15.8 1016.5 0 CLR CLR CLR 65 51 15.0 0.0 0.351 17.3 33 03/28 21Z 68 46 303 8 0.00 0.00 563 576 14.8 -15.5 1015.7 3 CLR CLR 389FEW416 69 64 15.0 0.0 0.365 17.0 36 03/29 00Z 69 43 312 6 0.00 0.00 564 575 15.4 -15.4 1013.6 7 CLR CLR 390FEW408 70 64 15.0 0.0 0.335 19.7 39 03/29 03Z 57 44 307 5 0.00 0.00 564 575 15.9 -15.3 1013.8 24 CLR CLR 381FEW416 69 57 15.0 0.0 0.332 19.9 42 03/29 06Z 56 44 85 1 0.00 0.00 563 575 15.5 -15.2 1014.5 37 CLR CLR 371SCT413 69 55 15.0 0.0 0.488 19.6 45 03/29 09Z 55 42 41 2 0.00 0.00 563 574 15.4 -15.3 1013.8 57 CLR CLR 348BKN395 56 55 15.0 0.0 0.566 19.9 48 03/29 12Z 55 42 9 1 0.00 0.00 562 573 15.0 -15.2 1013.5 31 CLR CLR 351SCT396 56 55 15.0 0.0 0.611 19.2 51 03/29 15Z 57 45 319 2 0.00 0.00 561 573 14.6 -15.2 1014.4 2 CLR CLR 383FEW398 57 55 15.0 0.0 0.595 18.6 54 03/29 18Z 67 48 279 3 0.00 0.00 562 574 14.5 -14.5 1014.9 29 CLR CLR 328SCT406 67 55 15.0 0.0 0.555 18.5 57 03/29 21Z 70 48 293 7 0.00 0.00 562 574 14.3 -14.0 1014.2 100 CLR CLR 285OVC376 70 67 15.0 0.0 0.530 18.9 60 03/30 00Z 67 44 277 6 0.00 0.00 563 574 14.5 -14.3 1012.8 97 CLR CLR 287BKN362 71 66 15.0 0.0 0.480 19.1 63 03/30 03Z 58 43 239 3 0.00 0.00 562 573 14.2 -14.2 1013.2 100 CLR CLR 284OVC418 68 58 15.0 0.0 0.403 19.0 66 03/30 06Z 54 44 203 4 0.00 0.00 561 573 14.0 -14.5 1014.1 99 CLR CLR 268OVC367 68 54 15.0 0.0 0.311 18.5 69 03/30 09Z 52 44 195 3 0.00 0.00 560 572 13.4 -15.1 1013.9 93 CLR CLR 267BKN349 54 52 15.0 0.0 0.346 17.5 72 03/30 12Z 53 45 184 3 0.00 0.00 559 570 12.1 -15.7 1013.3 96 CLR 222SCT241 256BKN375 54 52 15.0 0.0 0.454 16.3 75 03/30 15Z 54 46 197 3 0.00 0.00 557 568 11.6 -18.5 1014.0 100 CLR 204BKN241 241OVC390 54 52 15.0 0.0 0.536 16.1 78 03/30 18Z 61 46 229 3 0.00 0.00 556 568 11.5 -18.9 1014.1 100 CLR 194BKN241 255OVC362 61 52 15.0 0.0 0.511 15.4 81 03/30 21Z 65 46 278 3 0.00 0.00 556 568 10.8 -16.7 1014.4 91 CLR 157BKN231 327SCT354 65 61 15.0 0.0 0.665 14.7 84 03/31 00Z 58 44 269 7 0.00 0.00 555 567 9.6 -16.6 1014.5 96 CLR 156BKN226 332BKN419 65 58 15.0 0.0 0.744 13.5 87 03/31 03Z 52 42 260 5 0.00 0.00 554 567 9.5 -17.0 1015.2 100 097FEW120 133SCT191 315OVC389 58 52 15.0 0.0 0.880 12.4 90 03/31 06Z 51 41 276 4 0.00 0.00 554 566 8.6 -17.1 1015.2 100 092FEW119 134BKN212 290OVC387 58 51 15.0 0.0 0.897 11.7 93 03/31 09Z 50 42 275 4 0.00 0.00 553 566 7.6 -16.8 1015.8 100 076SCT118 141BKN225 293OVC372 51 50 15.0 0.0 0.863 10.7 96 03/31 12Z 49 42 240 2 0.00 0.00 552 564 6.9 -17.1 1015.2 100 077SCT116 158BKN227 294OVC372 51 49 15.0 0.0 0.789 10.1 99 03/31 15Z 50 42 257 1 0.00 0.00 551 564 7.2 -18.1 1016.2 100 084FEW116 205OVC235 276OVC363 50 49 15.0 0.0 0.740 9.7 102 03/31 18Z 57 40 264 3 0.00 0.00 551 565 7.3 -18.8 1016.7 100 085FEW118 196BKN235 284OVC359 56 49 15.0 0.0 0.716 8.5 105 03/31 21Z 57 41 284 10 0.00 0.00 550 564 6.5 -18.4 1016.6 100 085FEW119 154BKN238 252OVC310 59 56 15.0 0.0 0.692 8.7 108 04/01 00Z 56 41 277 9 0.00 0.00 550 563 6.5 -19.5 1016.0 99 085FEW117 169BKN237 248BKN301 59 55 15.0 0.0 0.678 9.4 111 04/01 03Z 51 42 286 6 0.00 0.00 549 563 6.3 -19.6 1016.6 98 082FEW103 147BKN230 238FEW257 56 51 15.0 0.0 0.657 9.5 114 04/01 06Z 48 43 267 4 0.00 0.00 550 564 6.4 -17.3 1017.8 66 081FEW099 153BKN228 239FEW258 56 48 15.0 0.0 0.593 8.7 117 04/01 09Z 47 43 226 2 0.00 0.00 551 565 5.9 -16.2 1018.0 5 075FEW085 CLR CLR 48 47 15.0 0.0 0.591 8.1 120 04/01 12Z 47 43 239 2 0.00 0.00 550 565 5.6 -15.9 1018.3 5 076FEW084 CLR CLR 48 47 15.0 0.0 0.612 7.5 123 04/01 15Z 49 43 140 4 0.00 0.00 552 567 5.8 -15.0 1018.1 2 079FEW086 CLR CLR 49 46 15.0 0.0 0.646 8.3 126 04/01 18Z 58 42 278 3 0.00 0.00 552 568 5.4 -14.4 1018.7 2 082FEW088 CLR CLR 58 46 15.0 0.0 0.710 7.5 129 04/01 21Z 62 45 280 8 0.00 0.00 554 568 5.7 -14.5 1016.9 58 058FEW069 CLR 362BKN397 62 58 15.0 0.0 0.756 9.7 132 04/02 00Z 61 49 273 9 0.00 0.00 555 568 5.6 -14.3 1015.3 46 057FEW066 CLR 361SCT395 63 58 15.0 0.0 0.763 9.9 135 04/02 03Z 54 49 237 6 0.00 0.00 554 567 5.2 -14.5 1016.5 50 CLR CLR 359SCT390 61 54 15.0 0.0 0.804 9.1 138 04/02 06Z 55 51 191 3 0.01 0.00 554 568 4.8 -13.8 1016.6 66 005SCT053 CLR 359SCT390 61 53 15.4 0.0 0.782 8.8 141 04/02 09Z 52 48 284 8 0.02 0.00 553 567 3.7 -13.8 1017.3 100 -RA 000OVC066 CLR CLR 55 52 15.1 0.0 0.599 7.4 144 04/02 12Z 47 40 301 8 0.00 0.00 551 566 3.0 -14.8 1017.8 67 -RA 009BKN065 CLR CLR 55 47 15.0 0.0 0.336 5.7 147 04/02 15Z 48 37 314 10 0.00 0.00 550 566 3.6 -15.2 1018.8 0 CLR CLR CLR 48 46 15.0 0.0 0.257 3.9 150 04/02 18Z 54 33 318 11 0.00 0.00 551 567 4.0 -15.8 1018.9 0 CLR CLR CLR 54 46 15.0 0.0 0.237 3.9 153 04/02 21Z 58 36 280 10 0.00 0.00 552 566 3.0 -15.9 1017.7 0 CLR CLR CLR 58 54 15.0 0.0 0.273 6.7 156 04/03 00Z 57 40 279 13 0.00 0.00 552 566 4.3 -16.1 1016.4 0 CLR CLR CLR 59 54 15.0 0.0 0.337 8.0 159 04/03 03Z 50 42 291 6 0.00 0.00 553 567 4.3 -15.9 1017.2 0 CLR CLR CLR 57 50 15.0 0.0 0.369 9.5 162 04/03 06Z 49 41 10 2 0.00 0.00 553 568 4.8 -16.3 1017.8 0 CLR CLR CLR 57 49 15.0 0.0 0.346 9.7 165 04/03 09Z 48 41 329 3 0.00 0.00 553 568 5.3 -16.6 1017.9 0 CLR CLR CLR 49 48 15.0 0.0 0.271 8.8 168 04/03 12Z 47 36 1 4 0.00 0.00 554 569 7.2 -16.8 1017.5 0 CLR CLR CLR 49 47 15.0 0.0 0.234 9.0