Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 15DEC 2025 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 12/15 00Z 52 37 305 3 0.00 0.00 562 579 13.8 -14.1 1020.1 12 CLR 000FEW000 CLR **** **** 15.0 0.0 0.375 16.5 3 12/15 03Z 48 35 327 3 0.00 0.00 562 580 14.1 -13.1 1021.8 54 CLR 228FEW241 325BKN354 52 47 15.0 0.0 0.392 15.7 6 12/15 06Z 47 35 100 2 0.00 0.00 563 581 14.3 -13.4 1022.5 49 CLR 216FEW229 324SCT356 53 45 15.0 0.0 0.412 17.1 9 12/15 09Z 47 34 40 2 0.00 0.00 563 581 14.5 -12.0 1022.4 48 CLR 178FEW196 306SCT373 48 47 15.0 0.0 0.489 16.5 12 12/15 12Z 47 34 38 2 0.00 0.00 563 582 14.5 -11.8 1023.0 67 CLR 176FEW197 284BKN371 48 47 15.0 0.0 0.625 16.4 15 12/15 15Z 48 34 360 2 0.00 0.00 563 583 14.6 -12.6 1023.8 86 CLR 177FEW211 269BKN371 48 47 15.0 0.0 0.674 16.7 18 12/15 18Z 55 36 3 2 0.00 0.00 564 584 14.6 -12.7 1025.1 80 CLR 175FEW222 274BKN361 55 47 15.0 0.0 0.687 17.3 21 12/15 21Z 59 38 321 3 0.00 0.00 563 583 13.3 -13.2 1023.7 100 CLR 203FEW240 284OVC386 60 55 15.0 0.0 0.821 16.7 24 12/16 00Z 58 39 315 3 0.00 0.00 563 583 13.2 -13.1 1023.0 100 CLR 183SCT244 272OVC384 60 55 15.0 0.0 1.064 15.9 27 12/16 03Z 56 38 171 1 0.00 0.00 564 584 14.1 -11.8 1023.0 74 CLR 186FEW216 282BKN349 58 55 15.0 0.0 0.992 16.3 30 12/16 06Z 54 40 261 1 0.00 0.00 564 583 13.9 -11.3 1022.9 80 CLR 176FEW202 286BKN356 58 54 15.0 0.0 0.959 15.9 33 12/16 09Z 54 44 159 2 0.00 0.00 564 583 13.5 -11.4 1022.8 39 CLR 147FEW161 298SCT363 55 54 15.0 0.0 1.037 15.9 36 12/16 12Z 53 45 128 3 0.00 0.00 564 582 13.3 -11.7 1022.6 32 CLR 147FEW160 297SCT362 55 53 15.0 0.0 1.194 15.6 39 12/16 15Z 53 47 129 4 0.00 0.00 563 582 13.0 -11.8 1022.6 92 CLR 161FEW194 251BKN361 54 53 15.0 0.0 1.302 16.1 42 12/16 18Z 59 51 203 1 0.00 0.00 562 582 12.6 -11.9 1023.3 95 CLR 183SCT218 278BKN361 59 53 15.0 0.0 1.409 15.5 45 12/16 21Z 62 53 284 5 0.00 0.00 562 580 12.1 -11.8 1021.2 50 CLR 125SCT169 352FEW378 63 59 15.0 0.0 1.368 14.6 48 12/17 00Z 61 55 272 3 0.00 0.00 562 579 11.0 -12.2 1020.9 48 114FEW121 126FEW168 319SCT381 63 59 15.2 0.0 1.381 14.1 51 12/17 03Z 57 57 196 2 0.00 0.00 561 579 10.6 -12.8 1022.0 86 016SCT043 161FEW177 309BKN391 60 57 13.5 0.0 1.472 13.5 54 12/17 06Z 59 58 178 3 0.00 0.00 560 580 9.9 -12.5 1022.8 91 007BKN049 155FEW185 313SCT388 61 57 7.6 0.0 1.438 13.3 57 12/17 09Z 59 59 180 3 0.02 0.00 560 579 9.8 -11.8 1022.5 100 -RA 008OVC069 125FEW144 384FEW403 59 59 5.0 0.0 1.317 13.3 60 12/17 12Z 59 59 191 3 0.01 0.00 560 579 9.4 -11.7 1022.1 100 -RA 007OVC074 124FEW140 383FEW402 59 59 4.4 0.0 1.238 13.2 63 12/17 15Z 59 59 185 3 0.00 0.00 560 579 9.1 -11.1 1022.5 100 000OVC064 CLR 296FEW306 59 59 5.0 0.0 1.235 12.6 66 12/17 18Z 58 57 236 3 0.05 0.00 560 580 8.9 -10.8 1024.6 100 -RA 000OVC077 CLR 364FEW378 59 58 5.5 0.0 1.169 12.4 69 12/17 21Z 62 55 289 6 0.00 0.00 561 580 9.2 -10.4 1022.4 59 027BKN049 CLR 412FEW431 62 58 13.3 0.0 1.045 12.4 72 12/18 00Z 59 53 278 5 0.00 0.00 562 580 10.7 -10.9 1021.6 41 027SCT049 CLR 409FEW431 62 58 15.0 0.0 0.914 13.0 75 12/18 03Z 54 52 255 3 0.00 0.00 562 581 12.0 -10.6 1022.1 12 CLR CLR 418FEW441 59 54 15.0 0.0 0.851 11.3 78 12/18 06Z 53 50 219 3 0.00 0.00 563 581 13.9 -10.7 1022.1 9 CLR CLR 417FEW439 59 53 15.0 0.0 0.844 11.1 81 12/18 09Z 51 48 260 2 0.00 0.00 563 581 12.9 -10.8 1021.5 32 CLR CLR 407SCT433 53 51 15.0 0.0 0.923 13.7 84 12/18 12Z 51 47 266 2 0.00 0.00 563 581 11.4 -10.9 1021.2 36 CLR CLR 345SCT426 53 51 15.0 0.0 1.039 15.3 87 12/18 15Z 50 46 228 2 0.00 0.00 563 581 11.0 -10.7 1022.1 89 CLR CLR 262BKN424 51 50 15.0 0.0 0.948 14.3 90 12/18 18Z 56 46 200 2 0.00 0.00 563 582 11.1 -10.8 1023.2 82 CLR CLR 275BKN422 56 50 15.0 0.0 0.830 13.5 93 12/18 21Z 60 46 273 2 0.00 0.00 564 581 10.7 -10.5 1020.9 29 CLR CLR 364SCT402 60 56 15.0 0.0 0.739 13.5 96 12/19 00Z 58 48 278 3 0.00 0.00 564 581 11.5 -10.0 1020.1 58 CLR CLR 329BKN419 61 56 15.0 0.0 0.638 13.1 99 12/19 03Z 55 49 260 2 0.00 0.00 564 581 11.7 -10.8 1020.1 100 CLR CLR 319OVC433 58 55 15.0 0.0 0.564 12.9 102 12/19 06Z 54 50 276 1 0.00 0.00 563 580 11.7 -11.3 1020.3 100 CLR CLR 323OVC432 58 54 15.0 0.0 0.552 12.6 105 12/19 09Z 53 50 190 1 0.00 0.00 563 579 11.0 -11.6 1019.9 100 CLR CLR 306OVC427 54 53 15.0 0.0 0.552 12.2 108 12/19 12Z 52 50 197 1 0.00 0.00 562 578 10.1 -11.6 1019.5 100 CLR CLR 304OVC413 54 52 15.0 0.0 0.561 11.7 111 12/19 15Z 52 51 179 1 0.00 0.00 561 577 9.2 -12.0 1019.9 99 006FEW015 195FEW208 258BKN357 52 52 15.0 0.0 0.665 10.7 114 12/19 18Z 57 53 174 1 0.00 0.00 560 578 9.2 -11.9 1020.6 90 000FEW013 195FEW208 271BKN354 57 52 15.0 0.0 0.653 10.1 117 12/19 21Z 59 53 259 2 0.00 0.00 560 576 9.7 -12.3 1019.0 99 006BKN046 232FEW242 245BKN383 59 57 15.0 0.0 0.771 10.1 120 12/20 00Z 59 51 265 2 0.00 0.00 559 574 9.0 -13.5 1017.8 99 010BKN047 211SCT238 250BKN367 60 57 15.0 0.0 1.213 10.6 123 12/20 03Z 57 51 172 3 0.00 0.00 559 574 8.8 -12.9 1017.9 100 044BKN060 173BKN237 259OVC328 59 56 15.0 0.0 1.295 10.9 126 12/20 06Z 56 51 267 1 0.02 0.00 558 574 8.7 -11.5 1018.5 100 -RA 039BKN076 153BKN233 253BKN328 59 56 6.7 0.0 1.330 10.2 129 12/20 09Z 55 52 160 4 0.07 0.00 558 573 9.2 -12.0 1018.3 100 -RA 000OVC120 125BKN171 303BKN345 56 55 15.0 0.0 1.310 11.4 132 12/20 12Z 56 52 160 2 0.00 0.00 557 572 8.5 -13.2 1018.5 100 -RA 005OVC094 123BKN176 301BKN354 56 55 15.0 0.0 1.221 11.6 135 12/20 15Z 56 53 146 3 0.00 0.00 557 572 8.1 -13.2 1017.9 100 006OVC053 195SCT229 303BKN367 56 56 15.0 0.0 1.145 11.7 138 12/20 18Z 58 54 324 2 0.00 0.00 556 572 9.8 -14.0 1018.8 100 006BKN046 168BKN213 302SCT363 58 56 15.0 0.0 1.071 11.3 141 12/20 21Z 59 55 316 3 0.00 0.00 557 571 9.7 -14.3 1016.8 100 008BKN030 125OVC221 303FEW325 60 58 15.0 0.0 1.105 10.6 144 12/21 00Z 58 55 306 6 0.00 0.00 556 570 8.2 -14.5 1015.7 100 025BKN047 122BKN222 303FEW324 60 58 15.0 0.0 1.188 11.1 147 12/21 03Z 56 54 309 4 0.01 0.00 556 570 6.9 -13.7 1015.7 100 -RA 043OVC114 122BKN223 253BKN346 58 56 12.2 0.0 1.265 10.4 150 12/21 06Z 55 54 133 4 0.14 0.00 557 569 8.3 -14.2 1014.9 100 -RA 021OVC117 120BKN232 247BKN354 58 55 10.8 0.0 1.331 10.7 153 12/21 09Z 57 56 159 9 0.06 0.00 557 568 9.0 -13.9 1013.1 100 -RA 000OVC119 119OVC241 241OVC366 57 55 14.4 0.0 1.330 11.9 156 12/21 12Z 58 57 210 7 0.04 0.00 556 567 8.4 -15.9 1012.9 100 -RA 000OVC119 129BKN217 251OVC365 58 55 6.6 0.0 1.315 12.1 159 12/21 15Z 57 56 199 10 0.12 0.00 555 566 8.0 -16.4 1013.0 100 -RA 000OVC120 135BKN196 264OVC349 58 57 4.0 0.0 1.321 11.4 162 12/21 18Z 57 56 201 8 0.13 0.02 555 566 8.4 -16.8 1014.1 100 -RA 000OVC116 155BKN213 252OVC354 58 57 5.8 0.0 1.185 11.4 165 12/21 21Z 57 56 195 4 0.05 0.03 554 565 7.7 -16.9 1013.6 100 -TSRA 010OVC078 187BKN236 240OVC354 58 57 4.1 0.0 1.190 11.3 168 12/22 00Z 57 56 200 2 0.05 0.03 553 564 7.5 -16.8 1013.3 100 -TSRA 006OVC077 180BKN221 239OVC356 58 57 0.5 0.0 1.086 10.6