Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 21OCT 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 10/21 12Z 59 52 202 2 0.00 0.00 555 564 10.7 -18.7 1010.5 100 000FEW000 000OVC000 000OVC000 **** **** 15.0 0.0 0.941 13.5 3 10/21 15Z 59 53 294 1 0.00 0.00 555 564 10.5 -18.3 1010.4 100 067FEW096 165BKN239 239OVC323 59 58 15.0 0.0 0.981 13.2 6 10/21 18Z 64 55 327 4 0.00 0.00 555 565 10.9 -18.6 1011.0 100 069FEW095 159BKN239 240OVC327 64 58 15.2 0.0 1.059 13.6 9 10/21 21Z 67 54 291 4 0.00 0.00 555 564 9.3 -18.0 1010.5 100 066FEW080 162OVC229 239OVC342 67 64 15.2 0.0 1.032 13.9 12 10/22 00Z 62 55 291 3 0.06 0.06 555 563 9.1 -16.9 1010.0 100 -TSRA 070FEW087 151OVC234 239OVC341 67 62 5.6 0.0 1.127 13.5 15 10/22 03Z 59 55 356 2 0.03 0.03 554 563 8.3 -17.6 1010.4 100 -TSRA 036BKN115 129BKN177 243OVC321 62 58 15.1 0.0 1.067 12.9 18 10/22 06Z 59 54 342 1 0.00 0.00 554 563 8.3 -17.8 1010.3 97 -TSRA 049SCT115 135SCT178 244BKN314 62 58 15.1 0.0 1.019 12.8 21 10/22 09Z 57 54 21 2 0.00 0.00 553 561 8.2 -18.8 1010.2 66 086FEW105 158FEW198 240BKN294 59 57 14.7 0.0 1.064 12.1 24 10/22 12Z 56 53 95 2 0.01 0.01 552 560 7.6 -18.9 1010.1 76 -RA 086FEW110 131SCT207 241SCT293 59 56 15.2 0.0 1.011 11.9 27 10/22 15Z 56 53 65 2 0.02 0.02 551 560 7.4 -19.4 1011.0 61 -TSRA 081FEW113 135FEW182 238SCT269 56 55 15.2 0.0 0.976 11.1 30 10/22 18Z 63 53 288 1 0.01 0.01 551 561 6.8 -19.5 1012.2 47 -RA 083FEW114 147FEW186 247SCT278 64 55 13.9 0.0 0.987 10.9 33 10/22 21Z 64 54 279 7 0.02 0.02 552 562 7.1 -18.8 1011.8 73 -TSRA 056FEW067 191BKN237 248BKN292 66 64 13.9 0.0 0.995 11.9 36 10/23 00Z 61 54 277 9 0.01 0.01 552 563 7.7 -17.2 1012.5 60 -RA 056FEW067 188SCT234 246SCT299 66 61 14.9 0.0 0.997 11.5 39 10/23 03Z 57 53 262 6 0.00 0.00 553 565 7.2 -16.0 1013.8 100 013FEW023 137OVC240 240BKN305 61 57 15.0 0.0 1.094 10.5 42 10/23 06Z 56 50 255 10 0.00 0.00 554 566 8.4 -15.8 1014.9 95 026SCT039 141BKN232 245BKN307 61 56 15.0 0.0 0.940 7.5 45 10/23 09Z 56 50 225 6 0.00 0.00 554 567 9.8 -16.5 1014.8 85 -RA 014BKN038 125FEW164 290FEW304 56 56 15.0 0.0 0.851 7.9 48 10/23 12Z 57 50 207 5 0.00 0.00 555 567 8.8 -15.9 1014.5 92 015BKN034 125FEW164 287FEW303 57 56 15.0 0.0 0.618 8.2 51 10/23 15Z 57 49 215 2 0.00 0.00 555 567 7.2 -15.5 1015.0 100 006OVC035 CLR CLR 57 57 15.0 0.0 0.601 7.8 54 10/23 18Z 59 49 345 3 0.00 0.00 555 569 6.7 -14.3 1016.4 100 011OVC044 CLR CLR 60 57 15.0 0.0 0.679 9.2 57 10/23 21Z 63 52 349 8 0.00 0.00 558 571 6.6 -13.4 1015.2 60 043BKN062 CLR CLR 65 60 15.0 0.0 0.645 10.8 60 10/24 00Z 66 51 323 7 0.00 0.00 561 573 7.1 -13.0 1014.9 31 044SCT061 CLR CLR 68 60 15.0 0.0 0.585 13.4 63 10/24 03Z 56 52 299 4 0.00 0.00 561 575 9.8 -12.9 1016.3 0 CLR CLR CLR 66 55 15.0 0.0 0.503 13.4 66 10/24 06Z 56 51 283 2 0.00 0.00 562 576 11.3 -12.6 1016.4 0 CLR CLR CLR 66 55 15.0 0.0 0.454 14.4 69 10/24 09Z 55 50 307 0 0.00 0.00 563 576 11.2 -12.2 1016.0 0 CLR CLR CLR 56 55 15.0 0.0 0.398 14.6 72 10/24 12Z 54 47 91 2 0.00 0.00 563 577 10.9 -11.3 1016.1 0 CLR CLR CLR 56 54 15.0 0.0 0.357 13.7 75 10/24 15Z 54 37 58 2 0.00 0.00 563 578 11.1 -11.4 1016.9 0 CLR CLR CLR 54 53 15.0 0.0 0.332 14.0 78 10/24 18Z 65 35 14 2 0.00 0.00 564 579 11.6 -11.7 1017.2 0 CLR CLR CLR 65 53 15.0 0.0 0.349 13.4 81 10/24 21Z 70 38 334 2 0.00 0.00 565 578 11.6 -12.0 1015.5 4 CLR CLR 392FEW405 70 65 15.0 0.0 0.400 14.6 84 10/25 00Z 70 41 291 3 0.00 0.00 566 578 12.3 -11.9 1014.5 2 CLR CLR 392FEW405 72 65 15.0 0.0 0.459 16.3 87 10/25 03Z 60 44 307 3 0.00 0.00 565 578 12.3 -12.2 1015.9 1 CLR CLR CLR 70 59 15.0 0.0 0.476 16.4 90 10/25 06Z 59 44 309 2 0.00 0.00 565 579 12.1 -12.3 1016.8 1 CLR CLR 385FEW406 70 59 15.0 0.0 0.501 15.9 93 10/25 09Z 58 43 115 1 0.00 0.00 564 578 11.6 -12.4 1016.9 2 CLR CLR 383FEW394 59 58 15.0 0.0 0.531 15.7 96 10/25 12Z 57 43 86 2 0.00 0.00 564 578 11.8 -12.4 1016.8 3 CLR CLR 382FEW401 59 57 15.0 0.0 0.546 15.7 99 10/25 15Z 57 44 79 2 0.00 0.00 564 578 11.5 -12.5 1017.6 23 CLR CLR 343FEW414 57 57 15.0 0.0 0.565 15.3 102 10/25 18Z 67 47 4 1 0.00 0.00 564 579 11.6 -12.5 1018.3 59 CLR CLR 306BKN407 67 57 15.0 0.0 0.565 15.4 105 10/25 21Z 71 46 278 5 0.00 0.00 564 579 11.7 -12.6 1017.3 100 CLR CLR 286OVC379 71 67 15.0 0.0 0.577 16.2 108 10/26 00Z 69 46 291 6 0.00 0.00 564 579 11.8 -12.7 1017.2 89 CLR CLR 283BKN377 72 67 15.0 0.0 0.596 16.8 111 10/26 03Z 62 46 309 4 0.00 0.00 564 580 11.9 -12.7 1018.6 45 CLR CLR 328SCT377 69 62 15.0 0.0 0.573 16.5 114 10/26 06Z 60 47 6 2 0.00 0.00 565 581 12.7 -12.3 1018.8 60 CLR CLR 324BKN378 69 60 15.0 0.0 0.548 16.8 117 10/26 09Z 59 46 328 3 0.00 0.00 564 580 12.2 -12.3 1019.4 4 CLR CLR 347FEW371 60 59 15.0 0.0 0.582 16.3 120 10/26 12Z 58 47 27 2 0.00 0.00 564 580 12.2 -12.3 1019.4 26 CLR CLR 336SCT417 60 58 15.0 0.0 0.563 16.1 123 10/26 15Z 58 46 74 2 0.00 0.00 564 580 12.1 -12.3 1019.7 100 CLR CLR 307OVC427 58 57 15.0 0.0 0.548 16.0 126 10/26 18Z 66 48 14 1 0.00 0.00 564 581 12.7 -12.2 1020.1 100 CLR 217FEW245 278OVC432 66 57 15.0 0.0 0.550 16.7 129 10/26 21Z 72 48 287 4 0.00 0.00 565 581 12.8 -12.7 1018.4 100 CLR 210FEW226 325OVC423 72 66 15.0 0.0 0.565 16.9 132 10/27 00Z 71 47 308 6 0.00 0.00 565 580 12.7 -12.3 1017.5 99 CLR CLR 353OVC433 73 66 15.0 0.0 0.589 17.8 135 10/27 03Z 63 48 296 4 0.00 0.00 565 580 13.0 -12.1 1018.2 85 CLR CLR 340BKN395 71 63 15.0 0.0 0.578 17.6 138 10/27 06Z 60 48 301 1 0.00 0.00 565 580 13.2 -12.2 1018.3 79 CLR CLR 309BKN358 71 60 15.0 0.0 0.572 17.2 141 10/27 09Z 59 48 336 1 0.00 0.00 564 579 12.9 -12.5 1018.1 21 CLR CLR 368FEW403 60 59 15.0 0.0 0.584 16.9 144 10/27 12Z 58 47 4 1 0.00 0.00 563 578 12.8 -12.5 1017.7 53 CLR CLR 381BKN431 60 58 15.0 0.0 0.586 16.4 147 10/27 15Z 58 46 71 2 0.00 0.00 563 578 12.7 -12.8 1018.4 70 CLR CLR 386BKN431 58 57 15.0 0.0 0.578 16.2 150 10/27 18Z 68 47 295 1 0.00 0.00 563 579 13.0 -13.0 1018.2 82 CLR CLR 386BKN431 68 57 15.0 0.0 0.565 16.4 153 10/27 21Z 70 47 289 7 0.00 0.00 563 577 12.6 -12.9 1016.7 75 CLR CLR 375BKN423 71 68 15.0 0.0 0.586 16.2 156 10/28 00Z 66 47 300 5 0.00 0.00 563 576 13.2 -13.8 1015.9 50 CLR CLR 377SCT421 71 66 15.0 0.0 0.599 17.7 159 10/28 03Z 60 48 332 2 0.00 0.00 562 576 12.9 -14.6 1016.4 0 CLR CLR CLR 66 60 15.0 0.0 0.617 17.2 162 10/28 06Z 58 49 282 1 0.00 0.00 561 575 12.3 -14.9 1016.7 0 CLR CLR CLR 66 58 15.0 0.0 0.667 16.5 165 10/28 09Z 57 51 302 4 0.00 0.00 560 574 12.1 -14.6 1016.9 37 CLR CLR 261SCT314 58 57 15.0 0.0 0.705 15.4 168 10/28 12Z 56 51 307 1 0.00 0.00 559 572 11.7 -15.6 1016.2 68 CLR 208FEW242 247BKN311 58 56 15.0 0.0 0.732 15.1