Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 5APR 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 04/05 12Z 57 42 107 2 0.00 0.00 561 574 12.8 -15.1 1016.0 82 CLR 000BKN000 000BKN000 **** **** 15.0 0.0 0.418 18.0 3 04/05 15Z 60 45 19 1 0.00 0.00 560 574 12.9 -15.4 1016.6 96 CLR 199BKN241 250BKN307 60 57 15.0 0.0 0.527 18.0 6 04/05 18Z 69 47 310 2 0.00 0.00 560 575 13.1 -15.9 1016.8 94 CLR 179BKN242 247BKN295 69 57 15.0 0.0 0.499 17.6 9 04/05 21Z 73 47 289 5 0.00 0.00 561 574 12.9 -15.8 1015.3 93 CLR 170BKN242 242FEW252 74 69 15.0 0.0 0.507 18.8 12 04/06 00Z 71 47 283 9 0.00 0.00 561 573 13.4 -15.8 1014.4 94 CLR 171BKN238 303SCT343 75 69 15.0 0.0 0.600 19.3 15 04/06 03Z 59 46 283 5 0.00 0.00 560 573 13.1 -16.2 1015.4 100 CLR 179FEW198 292OVC352 70 59 15.0 0.0 0.608 18.4 18 04/06 06Z 57 46 254 2 0.00 0.00 560 574 12.9 -16.5 1016.4 97 CLR 174BKN199 290BKN346 70 57 15.0 0.0 0.604 17.9 21 04/06 09Z 55 46 279 3 0.00 0.00 559 573 13.0 -16.4 1016.6 55 CLR 158FEW191 275SCT341 57 55 15.0 0.0 0.593 16.8 24 04/06 12Z 53 48 273 3 0.00 0.00 558 572 12.6 -16.6 1016.7 59 CLR 155FEW182 288BKN343 57 53 15.0 0.0 0.576 15.9 27 04/06 15Z 55 48 244 2 0.00 0.00 558 573 12.3 -16.9 1017.6 93 CLR 150FEW164 278BKN352 55 52 15.0 0.0 0.542 15.6 30 04/06 18Z 63 47 294 5 0.00 0.00 558 573 12.1 -17.2 1018.4 51 CLR 156FEW168 280SCT352 63 52 15.0 0.0 0.481 14.5 33 04/06 21Z 65 46 291 9 0.00 0.00 558 573 12.3 -17.0 1017.9 4 CLR 157FEW165 354FEW368 65 63 15.0 0.0 0.441 15.3 36 04/07 00Z 62 45 287 9 0.00 0.00 559 573 12.5 -15.4 1017.0 4 CLR 157FEW165 321FEW339 66 62 15.0 0.0 0.379 15.1 39 04/07 03Z 54 47 277 6 0.00 0.00 559 574 12.6 -14.4 1017.9 0 CLR CLR CLR 62 54 15.0 0.0 0.394 14.5 42 04/07 06Z 52 48 243 3 0.00 0.00 559 574 12.8 -14.2 1018.3 2 CLR CLR 359FEW383 62 52 15.0 0.0 0.499 14.3 45 04/07 09Z 52 48 228 3 0.00 0.00 559 574 12.7 -14.5 1018.2 42 CLR CLR 317SCT403 52 51 15.0 0.0 0.494 13.7 48 04/07 12Z 51 48 230 3 0.00 0.00 558 573 12.3 -15.0 1018.1 62 CLR CLR 307BKN403 52 51 15.0 0.0 0.484 13.1 51 04/07 15Z 53 48 228 3 0.00 0.00 558 573 11.9 -15.1 1018.8 36 CLR CLR 302SCT411 53 50 15.0 0.0 0.484 12.6 54 04/07 18Z 61 46 276 5 0.00 0.00 558 574 11.8 -15.1 1019.1 45 CLR CLR 322SCT403 61 50 15.0 0.0 0.491 12.9 57 04/07 21Z 63 45 279 8 0.00 0.00 559 574 12.2 -15.3 1018.0 87 CLR CLR 356BKN412 64 61 15.0 0.0 0.552 14.0 60 04/08 00Z 61 45 282 8 0.00 0.00 559 573 12.8 -15.4 1016.6 84 CLR CLR 355BKN409 64 60 15.0 0.0 0.667 14.6 63 04/08 03Z 54 47 265 5 0.00 0.00 559 573 12.6 -15.7 1017.2 85 CLR 156FEW175 334BKN408 61 54 15.0 0.0 0.680 14.7 66 04/08 06Z 53 48 229 3 0.00 0.00 558 573 12.5 -15.4 1017.4 92 CLR 151FEW174 325BKN405 61 53 15.0 0.0 0.778 15.1 69 04/08 09Z 53 47 196 3 0.00 0.00 558 571 12.1 -16.1 1016.7 65 CLR CLR 328BKN390 53 53 15.0 0.0 0.836 14.4 72 04/08 12Z 53 47 197 4 0.00 0.00 556 570 11.2 -16.6 1016.3 36 CLR CLR 327SCT387 53 53 15.0 0.0 0.877 14.6 75 04/08 15Z 55 47 197 3 0.00 0.00 556 570 10.9 -16.7 1016.6 7 CLR CLR 322FEW351 55 52 15.0 0.0 0.923 13.7 78 04/08 18Z 63 46 268 4 0.00 0.00 556 570 10.5 -16.9 1016.8 8 102FEW115 125FEW137 308FEW338 63 52 15.0 0.0 0.944 13.1 81 04/08 21Z 66 49 281 8 0.00 0.00 556 570 10.5 -17.0 1015.7 2 108FEW119 CLR CLR 66 63 15.0 0.0 0.908 13.9 84 04/09 00Z 63 53 285 9 0.00 0.00 556 568 10.4 -16.7 1014.4 4 104FEW111 CLR CLR 66 62 15.0 0.0 0.904 13.4 87 04/09 03Z 56 53 283 6 0.00 0.00 555 568 10.1 -17.0 1014.9 18 CLR CLR 305FEW333 63 56 15.0 0.0 0.927 12.2 90 04/09 06Z 55 53 257 2 0.00 0.00 555 567 9.7 -17.3 1015.0 53 CLR CLR 279BKN359 63 55 15.1 0.0 0.946 11.6 93 04/09 09Z 55 53 228 1 0.00 0.00 554 566 9.1 -17.4 1014.5 100 010FEW019 230FEW240 245OVC376 55 55 15.0 0.0 0.941 11.2 96 04/09 12Z 54 53 249 1 0.00 0.00 553 564 8.6 -17.4 1013.7 89 012FEW024 226FEW239 242BKN376 55 54 15.0 0.0 0.931 10.9 99 04/09 15Z 56 54 99 1 0.00 0.00 553 564 8.8 -17.6 1014.0 98 011SCT035 204SCT239 239BKN380 56 54 15.0 0.0 0.856 10.7 102 04/09 18Z 62 54 281 2 0.00 0.00 552 564 8.4 -19.1 1014.0 99 013SCT031 203BKN239 239BKN375 62 54 15.0 0.0 0.883 10.5 105 04/09 21Z 66 53 291 7 0.00 0.00 552 563 7.9 -19.0 1012.7 100 054FEW061 182BKN239 248OVC345 66 62 15.0 0.0 0.968 12.3 108 04/10 00Z 63 52 289 8 0.00 0.00 551 561 7.9 -18.8 1011.7 100 070FEW085 166OVC238 243OVC342 66 62 15.0 0.0 0.918 12.0 111 04/10 03Z 57 53 293 5 0.04 0.04 551 561 8.0 -19.6 1011.7 98 -TSRA 077BKN116 137BKN238 238BKN311 63 57 15.0 0.0 0.970 11.4 114 04/10 06Z 54 53 231 2 0.01 0.01 550 560 6.9 -20.3 1011.8 98 -TSRA 077SCT115 137BKN234 238SCT299 63 55 14.1 0.0 0.988 10.6 117 04/10 09Z 55 53 112 2 0.08 0.07 549 559 8.1 -20.5 1011.1 77 -TSRA 039SCT100 133BKN232 237SCT267 55 54 14.7 0.0 0.962 10.1 120 04/10 12Z 54 52 98 2 0.03 0.03 549 558 7.3 -20.7 1010.5 81 -TSRA 056BKN106 129BKN207 237FEW266 55 53 15.1 0.0 0.950 10.8 123 04/10 15Z 55 53 70 1 0.06 0.01 549 558 6.3 -20.1 1010.7 98 -RA 047BKN113 129BKN199 237BKN278 55 54 5.1 0.0 0.986 10.6 126 04/10 18Z 55 54 133 1 0.21 0.00 549 558 5.9 -20.6 1011.6 99 -RA 024BKN113 123BKN219 237BKN290 56 53 11.9 0.0 0.971 10.2 129 04/10 21Z 60 53 259 2 0.02 0.00 549 559 6.5 -20.2 1011.0 100 032BKN103 125BKN227 239SCT306 60 55 14.6 0.0 0.895 11.5 132 04/11 00Z 61 51 269 4 0.01 0.01 550 558 6.9 -19.9 1009.7 100 043BKN103 122OVC229 254BKN310 62 55 14.6 0.0 0.879 11.9 135 04/11 03Z 56 50 295 4 0.00 0.00 550 559 7.3 -20.0 1010.6 100 100FEW118 119OVC237 243BKN305 62 56 15.0 0.0 0.854 11.6 138 04/11 06Z 55 50 251 3 0.00 0.00 550 560 6.8 -19.6 1011.0 100 097FEW116 132BKN234 241BKN314 62 55 15.0 0.0 0.778 11.6 141 04/11 09Z 53 50 222 2 0.00 0.00 550 560 6.9 -19.9 1012.0 100 CLR 221BKN238 239OVC322 55 53 15.0 0.0 0.804 11.0 144 04/11 12Z 51 49 256 3 0.00 0.00 550 560 7.1 -19.1 1011.9 100 065FEW071 205BKN238 246OVC305 55 51 14.9 0.0 0.840 10.2 147 04/11 15Z 53 48 240 3 0.00 0.00 550 561 7.1 -18.7 1012.8 88 009BKN018 167SCT225 261SCT328 53 51 15.1 0.0 0.836 10.5 150 04/11 18Z 59 49 263 5 0.00 0.00 551 562 7.7 -18.6 1013.3 71 014BKN023 165SCT219 263SCT329 59 51 15.0 0.0 0.862 8.9 153 04/11 21Z 61 49 270 10 0.00 0.00 552 563 7.9 -18.1 1012.9 18 067FEW076 201FEW220 CLR 61 59 15.0 0.0 0.854 10.0 156 04/12 00Z 57 49 266 9 0.00 0.00 553 564 8.3 -17.4 1012.9 11 067FEW073 200FEW217 CLR 61 57 15.0 0.0 0.887 10.3 159 04/12 03Z 52 48 261 6 0.00 0.00 554 565 9.3 -17.4 1013.0 28 015FEW021 133FEW140 302FEW313 57 52 15.0 0.0 0.862 10.1 162 04/12 06Z 52 47 211 4 0.00 0.00 555 566 9.1 -17.0 1013.1 55 013BKN022 CLR 302FEW313 57 52 15.0 0.0 0.829 10.9 165 04/12 09Z 52 47 204 6 0.00 0.00 555 566 9.3 -16.5 1013.7 79 013BKN022 CLR CLR 52 52 15.0 0.0 0.791 8.8 168 04/12 12Z 51 47 172 6 0.00 0.00 554 566 9.8 -17.2 1013.8 79 013BKN022 CLR 302FEW334 52 51 15.0 0.0 0.641 9.4