Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 14APR 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 04/14 12Z 51 48 229 4 0.00 0.00 549 566 5.0 -18.8 1020.5 74 000BKN000 CLR 000FEW000 **** **** 15.0 0.0 0.537 7.5 3 04/14 15Z 53 47 243 6 0.00 0.00 550 568 4.9 -18.3 1021.8 73 012BKN023 CLR 349FEW366 53 51 15.0 0.0 0.518 6.4 6 04/14 18Z 57 46 257 8 0.00 0.00 550 569 5.3 -18.7 1022.5 66 015BKN024 219FEW239 299FEW340 57 51 15.0 0.0 0.500 5.9 9 04/14 21Z 58 45 269 12 0.00 0.00 552 570 5.9 -17.8 1021.5 58 FEW CLR 262BKN326 58 57 15.0 0.0 0.473 7.0 12 04/15 00Z 56 45 270 12 0.00 0.00 552 570 6.3 -17.0 1020.7 35 FEW CLR 269SCT330 58 56 15.0 0.0 0.471 7.1 15 04/15 03Z 50 44 271 7 0.00 0.00 553 570 7.6 -16.1 1020.4 14 CLR CLR 371FEW403 56 50 15.0 0.0 0.449 8.3 18 04/15 06Z 50 44 250 6 0.00 0.00 554 571 7.8 -16.1 1020.2 12 CLR CLR 353FEW380 56 49 15.0 0.0 0.555 8.5 21 04/15 09Z 49 44 227 5 0.00 0.00 554 570 8.8 -16.7 1019.2 11 CLR CLR 325FEW351 50 49 15.0 0.0 0.578 8.7 24 04/15 12Z 48 44 219 3 0.00 0.00 554 569 8.8 -17.1 1018.4 15 CLR 198FEW220 326FEW352 50 48 15.0 0.0 0.640 8.3 27 04/15 15Z 51 45 212 3 0.00 0.00 553 568 8.7 -17.4 1019.0 47 CLR 154SCT240 247SCT389 52 48 15.0 0.0 0.725 7.6 30 04/15 18Z 58 45 259 6 0.00 0.00 552 569 8.1 -17.6 1019.4 69 CLR 151SCT240 266BKN362 57 48 15.0 0.0 0.708 7.9 33 04/15 21Z 60 47 272 12 0.00 0.00 553 568 8.4 -17.5 1018.4 84 CLR 142BKN234 291BKN411 61 58 15.0 0.0 0.683 9.1 36 04/16 00Z 58 48 273 13 0.00 0.00 553 568 8.1 -17.8 1017.4 84 CLR 140SCT226 291BKN401 60 57 15.0 0.0 0.858 8.9 39 04/16 03Z 53 50 281 9 0.00 0.00 553 568 7.1 -17.7 1017.8 14 086FEW091 152FEW175 320FEW365 58 53 15.0 0.0 0.917 9.5 42 04/16 06Z 53 51 285 7 0.00 0.00 553 568 6.0 -17.1 1018.2 38 017FEW024 173FEW192 343FEW395 58 52 15.0 0.0 0.866 8.5 45 04/16 09Z 50 43 279 9 0.00 0.00 552 566 5.3 -18.0 1017.9 68 011SCT022 CLR 341SCT396 53 50 15.0 0.0 0.255 8.2 48 04/16 12Z 46 38 346 6 0.00 0.00 550 565 4.5 -18.0 1017.6 37 011FEW021 CLR 345FEW396 53 46 15.0 0.0 0.219 4.8 51 04/16 15Z 49 38 356 8 0.00 0.00 549 565 3.3 -17.5 1019.6 2 CLR CLR 385FEW397 50 45 15.0 0.0 0.265 4.7 54 04/16 18Z 59 24 357 10 0.00 0.00 548 565 2.4 -17.3 1019.9 1 CLR CLR 385FEW397 59 45 15.0 0.0 0.159 7.0 57 04/16 21Z 63 26 354 13 0.00 0.00 549 565 3.1 -17.4 1018.5 0 CLR CLR CLR 63 59 15.0 0.0 0.163 9.3 60 04/17 00Z 64 30 314 11 0.00 0.00 550 565 4.6 -16.6 1016.8 2 CLR CLR 361FEW374 64 59 15.0 0.0 0.181 11.0 63 04/17 03Z 53 41 304 9 0.00 0.00 551 565 6.2 -16.5 1017.5 0 CLR CLR CLR 63 53 15.0 0.0 0.228 10.9 66 04/17 06Z 50 42 284 3 0.00 0.00 551 566 6.2 -16.2 1018.1 0 CLR CLR CLR 63 50 15.0 0.0 0.278 10.8 69 04/17 09Z 49 39 351 3 0.00 0.00 552 567 5.8 -16.2 1017.6 0 CLR CLR CLR 50 49 15.0 0.0 0.282 11.0 72 04/17 12Z 48 35 11 2 0.00 0.00 553 567 6.4 -16.5 1017.2 1 CLR CLR 345FEW357 50 48 15.0 0.0 0.255 10.7 75 04/17 15Z 51 33 44 1 0.00 0.00 552 568 6.1 -16.2 1018.4 7 CLR CLR 336FEW359 51 47 15.0 0.0 0.249 10.2 78 04/17 18Z 61 32 344 1 0.00 0.00 553 569 6.0 -15.9 1018.6 18 CLR CLR 289FEW331 62 47 15.0 0.0 0.268 9.8 81 04/17 21Z 64 34 295 6 0.00 0.00 554 569 6.1 -15.9 1017.5 37 CLR 231FEW241 280SCT315 65 61 15.0 0.0 0.319 12.2 84 04/18 00Z 61 40 293 11 0.00 0.00 555 569 7.0 -16.1 1016.7 64 CLR CLR 281BKN374 66 59 15.0 0.0 0.372 12.1 87 04/18 03Z 54 42 280 5 0.00 0.00 555 569 7.3 -15.2 1017.1 91 CLR 229FEW241 255BKN397 61 54 15.0 0.0 0.398 12.1 90 04/18 06Z 52 44 248 3 0.00 0.00 555 569 7.8 -15.3 1017.8 96 CLR 207SCT241 250BKN387 61 51 15.0 0.0 0.417 11.5 93 04/18 09Z 50 43 181 3 0.00 0.00 554 569 8.1 -15.7 1017.5 100 CLR 192BKN241 252OVC365 52 50 15.0 0.0 0.447 11.6 96 04/18 12Z 49 43 156 4 0.00 0.00 554 568 8.0 -16.0 1016.6 60 CLR 192SCT240 255BKN360 52 49 15.0 0.0 0.442 11.2 99 04/18 15Z 52 43 127 3 0.00 0.00 555 568 8.1 -15.5 1016.6 6 CLR 172FEW195 CLR 52 48 15.0 0.0 0.415 11.4 102 04/18 18Z 62 42 288 1 0.00 0.00 555 569 8.1 -15.8 1016.4 6 CLR 168FEW184 CLR 63 48 15.0 0.0 0.439 10.9 105 04/18 21Z 66 41 279 5 0.00 0.00 557 569 8.2 -15.5 1014.7 3 CLR 166FEW183 CLR 66 62 15.0 0.0 0.457 13.7 108 04/19 00Z 64 43 291 9 0.00 0.00 557 568 9.7 -15.5 1013.1 2 CLR 166FEW182 CLR 68 61 15.0 0.0 0.531 14.3 111 04/19 03Z 54 46 295 5 0.00 0.00 557 568 9.8 -15.9 1013.5 10 CLR 183FEW241 316FEW329 64 54 15.0 0.0 0.609 14.6 114 04/19 06Z 53 46 255 2 0.00 0.00 556 568 9.5 -16.1 1014.0 33 CLR 152SCT241 315FEW328 64 53 15.0 0.0 0.632 13.5 117 04/19 09Z 52 45 264 2 0.00 0.00 556 567 10.1 -16.3 1013.0 63 CLR 175BKN233 299FEW342 53 52 15.0 0.0 0.646 13.4 120 04/19 12Z 51 44 274 0 0.00 0.00 556 566 9.8 -17.1 1012.2 77 CLR 171SCT230 306SCT361 53 51 15.0 0.0 0.612 12.9 123 04/19 15Z 55 44 269 1 0.00 0.00 555 566 9.7 -17.6 1012.8 95 CLR 183BKN239 297BKN358 55 51 15.0 0.0 0.599 12.7 126 04/19 18Z 64 45 275 2 0.00 0.00 556 566 10.6 -17.3 1012.1 91 CLR 188SCT236 298BKN374 64 50 15.0 0.0 0.566 12.6 129 04/19 21Z 67 45 284 8 0.00 0.00 557 566 10.1 -17.0 1011.1 95 CLR 204FEW228 291BKN375 68 64 15.0 0.0 0.548 14.3 132 04/20 00Z 63 40 283 9 0.00 0.00 556 566 10.7 -17.0 1011.0 82 CLR 204FEW224 301BKN387 68 60 15.0 0.0 0.520 14.0 135 04/20 03Z 56 46 298 7 0.00 0.00 556 566 10.4 -16.4 1011.6 100 CLR 206FEW221 249OVC401 63 56 15.0 0.0 0.515 13.4 138 04/20 06Z 54 49 280 3 0.00 0.00 555 566 10.2 -16.2 1013.2 98 CLR 215FEW228 258BKN393 63 54 15.0 0.0 0.495 12.0 141 04/20 09Z 52 47 162 2 0.00 0.00 555 566 10.0 -15.7 1013.3 60 CLR 221FEW231 300BKN364 53 52 15.0 0.0 0.429 11.2 144 04/20 12Z 51 43 139 3 0.00 0.00 555 566 9.6 -15.6 1013.2 32 CLR CLR 300SCT363 53 51 15.0 0.0 0.422 11.0 147 04/20 15Z 54 38 137 5 0.00 0.00 554 566 9.2 -15.5 1014.4 1 CLR CLR CLR 54 50 15.0 0.0 0.396 11.4 150 04/20 18Z 63 37 213 1 0.00 0.00 555 567 8.8 -15.5 1015.0 2 CLR 216FEW235 CLR 63 50 15.0 0.0 0.433 10.9 153 04/20 21Z 68 39 263 8 0.00 0.00 555 568 8.4 -15.5 1014.4 9 CLR 198FEW219 402FEW428 69 63 15.0 0.0 0.465 13.4 156 04/21 00Z 66 38 238 11 0.00 0.00 556 567 9.4 -15.9 1013.4 24 CLR 195FEW210 400FEW428 69 63 15.0 0.0 0.451 13.5 159 04/21 03Z 57 41 235 5 0.00 0.00 555 567 9.8 -15.9 1014.5 14 CLR CLR 392FEW427 66 57 15.0 0.0 0.468 12.3 162 04/21 06Z 54 43 161 3 0.00 0.00 554 567 10.0 -16.0 1015.3 8 CLR CLR 393FEW424 66 54 15.0 0.0 0.471 12.1 165 04/21 09Z 53 43 147 4 0.00 0.00 553 566 8.1 -16.2 1015.7 0 CLR CLR CLR 54 52 15.0 0.0 0.732 10.6 168 04/21 12Z 52 42 123 7 0.00 0.00 552 565 7.8 -17.2 1014.8 17 107FEW114 122FEW167 CLR 54 52 15.0 0.0 0.736 11.0