Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 22APR 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 04/22 12Z 50 47 146 7 0.00 0.00 542 558 1.1 -18.6 1019.7 99 -RA 000OVC000 000BKN000 CLR **** **** 10.9 0.0 0.735 5.8 3 04/22 15Z 51 47 150 7 0.03 0.02 543 560 1.7 -18.4 1020.9 100 -TSRA 000OVC115 117SCT141 CLR 51 50 13.4 0.0 0.697 6.0 6 04/22 18Z 56 49 170 5 0.04 0.04 544 563 2.0 -18.6 1022.2 87 -TSRA 012BKN101 118FEW141 CLR 56 50 10.2 0.0 0.616 6.4 9 04/22 21Z 62 46 227 4 0.02 0.02 546 564 2.1 -18.4 1021.6 48 -TSRA 035SCT051 CLR 275FEW313 62 56 15.0 0.0 0.585 8.2 12 04/23 00Z 60 47 300 9 0.00 0.00 547 564 3.0 -19.1 1020.8 44 -RA 041SCT058 CLR 276FEW312 62 56 15.0 0.0 0.643 8.4 15 04/23 03Z 56 47 333 4 0.00 0.00 547 565 3.4 -18.9 1020.9 11 071FEW079 CLR CLR 61 55 15.0 0.0 0.630 8.3 18 04/23 06Z 51 45 26 4 0.00 0.00 548 566 4.5 -18.5 1022.0 7 071FEW080 CLR 310FEW322 60 51 15.0 0.0 0.438 8.6 21 04/23 09Z 50 45 10 3 0.00 0.00 548 566 5.1 -18.8 1021.4 3 CLR CLR 299FEW314 51 50 15.0 0.0 0.440 8.3 24 04/23 12Z 49 44 26 2 0.00 0.00 549 566 5.5 -18.6 1020.7 2 CLR CLR 299FEW314 51 49 15.0 0.0 0.442 8.2 27 04/23 15Z 52 44 40 2 0.00 0.00 551 568 5.6 -17.1 1020.7 1 CLR CLR 343FEW357 52 48 15.0 0.0 0.481 7.9 30 04/23 18Z 60 46 289 3 0.00 0.00 552 569 6.4 -16.9 1019.8 7 CLR CLR 292FEW327 60 48 15.0 0.0 0.477 8.7 33 04/23 21Z 63 45 294 9 0.00 0.00 554 569 6.7 -17.1 1018.0 41 CLR CLR 312SCT353 63 60 15.0 0.0 0.511 10.7 36 04/24 00Z 61 45 282 9 0.00 0.00 554 568 7.9 -17.0 1016.1 67 CLR CLR 299BKN339 64 59 15.0 0.0 0.464 10.9 39 04/24 03Z 54 46 264 6 0.00 0.00 555 568 8.8 -16.9 1016.4 100 CLR FEW 276OVC332 61 53 15.0 0.0 0.432 11.8 42 04/24 06Z 51 46 246 4 0.00 0.00 555 568 9.3 -16.4 1016.4 100 CLR 224FEW240 270OVC351 60 51 15.0 0.0 0.459 10.7 45 04/24 09Z 51 47 243 4 0.00 0.00 554 566 8.8 -17.9 1015.5 100 017FEW018 202BKN240 240OVC377 52 51 15.0 0.0 0.500 8.2 48 04/24 12Z 50 47 225 4 0.00 0.00 553 565 8.8 -16.1 1014.3 100 016FEW019 191BKN240 253BKN359 52 50 15.0 0.0 0.466 8.5 51 04/24 15Z 53 47 225 4 0.00 0.00 551 563 8.3 -15.5 1014.4 100 014SCT023 157OVC239 241BKN274 53 50 15.0 0.0 0.541 6.3 54 04/24 18Z 57 47 224 6 0.00 0.00 551 562 8.0 -17.7 1014.2 100 015SCT024 152OVC236 239BKN284 57 50 15.0 0.0 0.602 6.8 57 04/24 21Z 60 47 269 11 0.00 0.00 550 562 7.7 -18.3 1013.7 87 CLR 122BKN189 CLR 61 57 15.0 0.0 0.645 7.9 60 04/25 00Z 57 46 275 12 0.00 0.00 550 561 8.0 -17.6 1012.4 60 CLR 120BKN185 CLR 61 57 15.0 0.0 0.559 7.2 63 04/25 03Z 52 45 267 9 0.00 0.00 551 561 8.0 -15.5 1012.3 11 CLR 135FEW161 318FEW342 57 52 15.0 0.0 0.516 5.9 66 04/25 06Z 50 44 258 7 0.00 0.00 550 561 7.7 -15.8 1012.6 22 025FEW029 134FEW157 292FEW325 57 51 15.0 0.0 0.508 5.4 69 04/25 09Z 52 43 242 7 0.00 0.00 550 559 7.7 -15.1 1011.4 84 022BKN032 CLR 278BKN355 52 50 15.0 0.0 0.496 5.1 72 04/25 12Z 51 43 237 6 0.00 0.00 549 558 6.5 -16.0 1010.6 92 021BKN033 223SCT238 252BKN357 52 50 15.0 0.0 0.546 5.2 75 04/25 15Z 53 43 223 6 0.00 0.00 548 557 5.1 -17.0 1010.7 100 014BKN040 206BKN237 237OVC336 53 51 15.0 0.0 0.579 5.3 78 04/25 18Z 56 42 236 7 0.00 0.00 546 555 0.9 -18.4 1010.5 100 019BKN041 201BKN237 238OVC305 56 51 15.0 0.0 0.696 6.6 81 04/25 21Z 57 43 252 11 0.00 0.00 545 554 1.2 -19.3 1009.8 100 039BKN058 120OVC236 236OVC283 58 56 15.0 0.0 0.720 7.2 84 04/26 00Z 56 43 255 11 0.00 0.00 545 553 1.5 -19.3 1008.8 100 048BKN069 118OVC231 236OVC297 58 56 15.0 0.0 0.720 6.6 87 04/26 03Z 52 44 248 8 0.00 0.00 545 553 1.1 -19.2 1009.2 100 066BKN084 119OVC208 257BKN309 56 52 15.0 0.0 0.709 5.9 90 04/26 06Z 50 44 223 5 0.00 0.00 545 553 0.8 -18.9 1009.7 90 061SCT076 118BKN205 260SCT310 56 50 15.0 0.0 0.683 6.0 93 04/26 09Z 51 45 178 4 0.01 0.01 545 553 0.7 -19.1 1009.8 100 -RA 033BKN063 141FEW173 265BKN321 51 50 15.0 0.0 0.673 6.2 96 04/26 12Z 51 45 147 5 0.01 0.01 545 553 0.8 -19.4 1010.2 100 -RA 027BKN063 136FEW172 266BKN323 52 50 15.0 0.0 0.660 6.2 99 04/26 15Z 52 45 148 5 0.01 0.01 544 554 1.2 -20.2 1011.6 100 -RA 017OVC068 119FEW196 256BKN330 52 50 15.0 0.0 0.689 6.2 102 04/26 18Z 56 44 188 2 0.01 0.01 545 555 1.6 -20.1 1012.3 100 -RA 026OVC070 118SCT233 252SCT331 56 51 15.0 0.0 0.711 6.5 105 04/26 21Z 59 43 262 7 0.00 0.00 546 556 2.1 -19.9 1012.3 92 044BKN074 117BKN236 252FEW329 60 56 15.0 0.0 0.745 8.1 108 04/27 00Z 58 44 274 3 0.00 0.00 546 556 2.0 -19.6 1011.7 96 033BKN077 118SCT230 268SCT332 61 56 15.0 0.0 0.696 8.4 111 04/27 03Z 55 44 277 6 0.00 0.00 546 557 2.8 -19.9 1012.9 100 036OVC078 118FEW132 278BKN330 59 55 15.0 0.0 0.658 8.1 114 04/27 06Z 54 44 257 3 0.00 0.00 546 558 2.8 -19.7 1013.9 95 047BKN075 118FEW131 279BKN330 59 53 15.0 0.0 0.615 7.7 117 04/27 09Z 50 43 144 2 0.00 0.00 546 557 2.3 -19.8 1014.3 23 070FEW083 CLR 295FEW312 53 50 15.0 0.0 0.617 7.2 120 04/27 12Z 49 44 133 4 0.00 0.00 545 557 2.4 -20.1 1014.8 15 068FEW081 CLR 295FEW312 53 49 15.0 0.0 0.617 7.1 123 04/27 15Z 52 44 133 5 0.00 0.00 545 558 2.5 -20.1 1015.7 14 076FEW092 CLR 237FEW264 53 48 15.0 0.0 0.640 7.1 126 04/27 18Z 59 43 214 2 0.00 0.00 546 559 2.4 -20.1 1015.9 11 072FEW088 CLR CLR 59 48 15.0 0.0 0.645 7.9 129 04/27 21Z 59 45 256 7 0.00 0.00 547 560 2.9 -19.8 1015.8 67 030BKN079 CLR CLR 62 57 15.0 0.0 0.696 8.4 132 04/28 00Z 60 45 267 9 0.00 0.00 547 560 3.0 -19.8 1015.4 83 038BKN081 CLR CLR 62 57 15.0 0.0 0.675 8.7 135 04/28 03Z 54 46 277 6 0.00 0.00 547 560 3.9 -19.9 1016.1 52 048BKN083 CLR CLR 60 54 15.0 0.0 0.622 8.3 138 04/28 06Z 52 47 279 3 0.00 0.00 546 560 3.7 -20.3 1016.9 63 050SCT082 CLR 270SCT302 60 52 15.0 0.0 0.642 8.0 141 04/28 09Z 51 47 300 2 0.00 0.00 546 560 3.6 -20.4 1016.6 100 061FEW082 FEW 250OVC295 52 51 15.0 0.0 0.666 7.9 144 04/28 12Z 51 47 350 2 0.00 0.00 545 559 3.9 -21.7 1015.9 100 064SCT088 199BKN236 243BKN286 52 51 15.0 0.0 0.643 7.9 147 04/28 15Z 54 47 325 3 0.00 0.00 545 558 4.0 -21.8 1016.2 99 062SCT085 175OVC223 CLR 54 50 15.0 0.0 0.599 8.2 150 04/28 18Z 59 44 293 5 0.00 0.00 545 559 3.6 -21.9 1016.5 99 063SCT084 176BKN215 261SCT315 59 50 15.0 0.0 0.623 8.4 153 04/28 21Z 61 44 285 10 0.00 0.00 545 558 3.6 -21.5 1016.0 100 065FEW083 169BKN213 252BKN325 62 59 15.0 0.0 0.644 8.8 156 04/29 00Z 59 44 270 11 0.00 0.00 545 558 3.8 -20.7 1015.7 100 064FEW082 160BKN225 244OVC320 62 58 15.0 0.0 0.691 8.4 159 04/29 03Z 55 45 274 8 0.00 0.00 545 558 3.5 -20.9 1016.3 100 059BKN088 154BKN236 236OVC316 59 55 15.0 0.0 0.662 7.9 162 04/29 06Z 52 45 274 7 0.00 0.00 545 559 3.7 -19.6 1016.8 91 060SCT089 139BKN224 237BKN309 59 52 15.0 0.0 0.655 7.6 165 04/29 09Z 51 45 249 6 0.00 0.00 546 560 3.5 -20.1 1017.1 44 105FEW112 183SCT207 242SCT270 52 51 15.0 0.0 0.674 7.1 168 04/29 12Z 51 46 255 7 0.00 0.00 547 562 3.7 -19.3 1017.6 59 086FEW102 193SCT215 238SCT284 52 51 15.0 0.0 0.717 6.6