Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 3APR 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 04/03 12Z 48 41 29 2 0.00 0.00 556 572 9.4 -15.4 1019.3 2 CLR CLR 000FEW000 **** **** 15.0 0.0 0.248 10.3 3 04/03 15Z 51 39 21 2 0.00 0.00 557 574 10.2 -15.1 1020.3 1 CLR CLR CLR 51 48 15.0 0.0 0.225 9.4 6 04/03 18Z 63 34 31 10 0.00 0.00 558 575 10.2 -14.9 1020.3 0 CLR CLR CLR 62 48 15.0 0.0 0.214 9.6 9 04/03 21Z 69 34 38 11 0.00 0.00 560 576 11.4 -14.6 1018.4 0 CLR CLR CLR 69 63 15.0 0.0 0.207 13.2 12 04/04 00Z 70 37 19 7 0.00 0.00 561 575 11.4 -14.3 1017.3 0 CLR CLR CLR 70 63 15.0 0.0 0.237 14.8 15 04/04 03Z 55 43 312 7 0.00 0.00 560 576 12.0 -14.3 1018.6 0 CLR CLR CLR 70 55 15.0 0.0 0.272 14.3 18 04/04 06Z 54 41 88 1 0.00 0.00 561 577 11.6 -14.4 1019.2 8 CLR CLR 373FEW392 70 54 15.0 0.0 0.293 16.0 21 04/04 09Z 53 40 111 3 0.00 0.00 561 577 11.8 -14.4 1019.4 79 CLR CLR 333BKN398 54 53 15.0 0.0 0.310 15.0 24 04/04 12Z 53 39 53 2 0.00 0.00 560 575 12.0 -14.5 1018.5 90 CLR CLR 320BKN394 54 53 15.0 0.0 0.271 15.1 27 04/04 15Z 53 40 61 3 0.00 0.00 560 576 11.9 -14.6 1019.3 100 CLR CLR 301OVC399 54 51 15.0 0.0 0.282 15.3 30 04/04 18Z 65 45 13 1 0.00 0.00 561 576 12.3 -14.8 1018.8 100 CLR CLR 293OVC395 65 51 15.0 0.0 0.331 16.1 33 04/04 21Z 74 46 309 1 0.00 0.00 562 576 12.6 -14.8 1017.1 100 CLR CLR 283OVC392 74 65 15.0 0.0 0.373 17.0 36 04/05 00Z 71 45 266 4 0.00 0.00 561 575 12.4 -14.8 1016.1 100 CLR CLR 276OVC391 75 65 15.0 0.0 0.407 17.5 39 04/05 03Z 63 43 305 4 0.00 0.00 561 575 13.3 -15.2 1016.2 100 CLR CLR 272OVC383 72 62 15.0 0.0 0.382 17.6 42 04/05 06Z 59 44 57 1 0.00 0.00 561 575 13.4 -15.5 1017.0 100 CLR CLR 272OVC379 72 59 15.0 0.0 0.399 17.7 45 04/05 09Z 58 44 100 1 0.00 0.00 560 574 13.1 -15.7 1016.7 100 CLR CLR 264OVC364 59 58 15.0 0.0 0.431 17.4 48 04/05 12Z 56 44 75 2 0.00 0.00 560 573 13.0 -16.2 1015.9 100 CLR 232FEW242 254OVC352 59 57 15.0 0.0 0.423 17.6 51 04/05 15Z 58 45 49 2 0.00 0.00 559 573 12.9 -15.9 1016.4 56 CLR 227SCT241 252BKN313 59 55 15.0 0.0 0.447 17.1 54 04/05 18Z 70 47 306 2 0.00 0.00 560 574 13.1 -16.0 1016.1 28 CLR 226FEW240 252SCT314 70 55 15.0 0.0 0.420 16.6 57 04/05 21Z 73 46 287 6 0.00 0.00 561 574 13.0 -15.8 1015.2 3 CLR CLR 366FEW379 73 69 15.0 0.0 0.461 18.4 60 04/06 00Z 67 45 287 9 0.00 0.00 561 574 13.6 -15.5 1014.8 34 CLR 202SCT233 308FEW369 74 66 15.0 0.0 0.551 18.8 63 04/06 03Z 59 44 295 5 0.00 0.00 561 574 13.4 -15.9 1015.5 72 CLR 197FEW223 277BKN357 67 59 15.0 0.0 0.525 17.8 66 04/06 06Z 55 45 274 2 0.00 0.00 560 574 13.3 -16.2 1016.3 76 CLR 197FEW224 272BKN356 67 55 15.0 0.0 0.490 17.1 69 04/06 09Z 54 45 270 3 0.00 0.00 560 573 13.1 -16.2 1016.6 5 CLR 207FEW216 320FEW338 55 54 15.0 0.0 0.456 16.1 72 04/06 12Z 52 45 288 2 0.00 0.00 559 572 13.1 -16.2 1016.2 14 CLR CLR 303FEW331 55 52 15.0 0.0 0.446 15.9 75 04/06 15Z 55 47 275 2 0.00 0.00 559 573 12.5 -15.2 1017.2 0 CLR CLR CLR 55 51 15.0 0.0 0.458 15.1 78 04/06 18Z 63 45 286 5 0.00 0.00 559 574 12.5 -14.8 1017.8 1 CLR CLR CLR 63 51 15.0 0.0 0.425 14.9 81 04/06 21Z 66 43 292 8 0.00 0.00 560 574 13.0 -13.9 1017.0 3 CLR CLR 318FEW332 66 63 15.0 0.0 0.334 16.0 84 04/07 00Z 62 43 289 8 0.00 0.00 560 574 13.1 -14.0 1016.3 2 CLR CLR 318FEW332 66 61 15.0 0.0 0.372 15.7 87 04/07 03Z 54 47 276 4 0.00 0.00 560 575 13.0 -14.3 1017.2 29 CLR CLR 312SCT407 62 54 15.0 0.0 0.444 15.3 90 04/07 06Z 52 48 240 3 0.00 0.00 560 575 13.0 -14.4 1017.7 54 CLR CLR 295SCT414 62 52 15.0 0.0 0.506 14.9 93 04/07 09Z 51 48 214 3 0.00 0.00 560 574 12.8 -14.4 1017.7 58 CLR CLR 295BKN356 52 51 15.0 0.0 0.532 14.6 96 04/07 12Z 51 48 198 3 0.00 0.00 559 573 12.7 -14.9 1017.5 46 CLR CLR 310SCT369 52 51 15.0 0.0 0.549 14.2 99 04/07 15Z 53 49 181 3 0.00 0.00 558 573 12.4 -15.6 1017.6 60 CLR CLR 343BKN415 53 50 15.0 0.0 0.618 14.6 102 04/07 18Z 61 47 277 5 0.00 0.00 559 574 12.0 -15.8 1018.0 72 CLR 147FEW183 363BKN413 61 50 15.0 0.0 0.719 14.1 105 04/07 21Z 64 45 278 8 0.00 0.00 559 573 11.8 -15.7 1016.7 100 CLR 139FEW152 365OVC407 64 61 15.0 0.0 0.797 14.6 108 04/08 00Z 62 44 285 8 0.00 0.00 558 572 11.4 -15.8 1015.8 86 CLR 133FEW160 363BKN405 65 61 15.0 0.0 0.913 14.8 111 04/08 03Z 55 47 279 4 0.00 0.00 558 571 10.8 -16.3 1016.2 46 114FEW121 157FEW173 345SCT393 62 55 15.0 0.0 0.998 13.4 114 04/08 06Z 54 48 195 3 0.00 0.00 557 570 10.4 -16.6 1016.1 64 CLR 170FEW187 352BKN391 62 54 15.0 0.0 1.071 13.2 117 04/08 09Z 55 49 245 2 0.00 0.00 556 569 10.0 -17.1 1015.3 99 CLR 162BKN237 334BKN383 55 54 14.2 0.0 1.188 12.6 120 04/08 12Z 54 52 257 2 0.02 0.02 555 567 8.7 -17.6 1014.8 99 -RA 026FEW041 145BKN238 308BKN356 55 54 11.2 0.0 1.160 11.4 123 04/08 15Z 56 53 144 2 0.01 0.01 554 566 8.0 -17.9 1014.6 100 -RA 008BKN044 162FEW201 269BKN303 56 55 15.0 0.0 1.073 11.4 126 04/08 18Z 61 55 151 2 0.00 0.01 553 565 7.4 -18.4 1014.1 99 -RA 013OVC041 162FEW200 269SCT302 61 55 15.0 0.0 0.982 11.4 129 04/08 21Z 63 56 288 8 0.01 0.01 554 564 7.8 -17.8 1012.9 89 024BKN049 CLR 282SCT343 64 62 13.1 0.0 0.940 11.6 132 04/09 00Z 61 57 280 7 0.01 0.01 553 562 7.7 -18.0 1011.0 93 020BKN044 CLR 282BKN345 64 61 12.7 0.0 0.910 11.3 135 04/09 03Z 57 56 278 4 0.02 0.01 552 561 6.3 -19.1 1011.0 100 -RA 000BKN046 CLR 288OVC352 61 57 12.2 0.0 0.853 10.7 138 04/09 06Z 56 54 290 3 0.01 0.01 550 559 6.0 -20.0 1010.9 98 -RA 006BKN049 CLR 293BKN346 61 56 14.8 0.0 0.781 10.6 141 04/09 09Z 53 52 311 2 0.00 0.00 549 557 6.1 -20.8 1010.3 10 003FEW010 CLR CLR 55 53 15.0 0.0 0.693 9.8 144 04/09 12Z 53 51 297 3 0.00 0.00 547 555 5.3 -21.9 1009.9 36 000SCT020 CLR CLR 55 52 14.6 0.0 0.694 8.5 147 04/09 15Z 55 50 326 2 0.00 0.00 546 554 5.5 -22.6 1010.2 97 000BKN030 CLR CLR 55 53 15.0 0.0 0.689 7.6 150 04/09 18Z 60 49 297 3 0.00 0.00 546 555 5.5 -22.3 1010.3 90 008BKN030 CLR 239FEW267 60 53 15.0 0.0 0.713 8.6 153 04/09 21Z 61 48 287 9 0.00 0.00 547 555 5.8 -22.3 1009.2 86 074FEW083 209FEW236 236BKN288 62 60 15.0 0.0 0.742 10.3 156 04/10 00Z 58 48 285 9 0.00 0.00 548 555 6.3 -21.9 1007.5 93 074FEW083 190BKN236 236BKN294 62 58 15.0 0.0 0.720 10.8 159 04/10 03Z 52 49 270 5 0.00 0.00 549 556 6.9 -21.3 1008.3 100 CLR 187BKN236 236OVC313 58 52 15.0 0.0 0.770 9.6 162 04/10 06Z 52 49 254 5 0.00 0.00 549 557 7.1 -19.9 1008.6 100 013FEW023 187BKN237 237OVC324 58 51 15.0 0.0 0.838 9.1 165 04/10 09Z 51 48 238 7 0.00 0.00 549 556 6.5 -18.0 1008.6 100 -RA 012BKN036 141OVC229 237OVC324 52 51 15.0 0.0 0.959 6.3 168 04/10 12Z 51 48 227 10 0.02 0.00 549 556 6.0 -18.0 1008.4 100 -RA 010BKN063 131OVC208 242BKN310 53 51 15.0 0.0 0.904 5.8