Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 0Z 16APR 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 04/16 00Z 58 48 274 12 0.00 0.00 553 569 8.4 -17.4 1018.3 100 CLR 000FEW000 000OVC000 **** **** 15.0 0.0 0.793 9.3 3 04/16 03Z 53 48 286 8 0.00 0.00 553 569 7.8 -17.2 1018.4 100 CLR CLR 291OVC412 58 53 15.0 0.0 0.774 9.8 6 04/16 06Z 52 51 282 6 0.00 0.00 554 569 6.6 -17.4 1018.4 90 012FEW015 CLR 301BKN409 58 52 15.1 0.0 0.792 9.4 9 04/16 09Z 53 51 273 8 0.00 0.00 553 568 5.3 -17.1 1017.8 78 007BKN020 CLR 360FEW400 55 52 15.1 0.0 0.470 9.0 12 04/16 12Z 49 44 283 6 0.00 0.00 553 567 7.2 -17.0 1017.0 50 006SCT019 CLR 367FEW398 55 49 15.0 0.0 0.256 7.9 15 04/16 15Z 50 44 48 2 0.00 0.00 552 567 6.1 -16.6 1017.9 6 CLR CLR 366FEW399 51 47 15.0 0.0 0.373 6.5 18 04/16 18Z 59 40 22 10 0.00 0.00 552 568 6.3 -16.4 1018.4 7 CLR CLR 358FEW393 59 47 15.0 0.0 0.383 7.1 21 04/16 21Z 66 30 360 9 0.00 0.00 554 568 5.4 -15.9 1017.1 9 CLR CLR 340FEW396 66 59 15.0 0.0 0.198 11.7 24 04/17 00Z 68 27 346 12 0.00 0.00 554 568 6.8 -15.8 1015.6 8 CLR CLR 349FEW398 68 59 15.0 0.0 0.163 13.5 27 04/17 03Z 56 41 306 8 0.00 0.00 554 568 6.6 -15.4 1016.6 6 CLR CLR 385FEW412 67 56 15.0 0.0 0.291 11.5 30 04/17 06Z 55 36 332 8 0.00 0.00 555 569 7.9 -15.7 1016.5 6 CLR CLR 367FEW388 67 54 15.0 0.0 0.227 12.0 33 04/17 09Z 52 28 2 6 0.00 0.00 555 569 7.9 -15.8 1016.2 6 CLR CLR 351FEW366 55 52 15.0 0.0 0.164 12.1 36 04/17 12Z 49 25 31 3 0.00 0.00 555 569 8.2 -16.0 1016.7 6 CLR CLR 346FEW366 55 49 15.0 0.0 0.164 11.0 39 04/17 15Z 51 25 68 2 0.00 0.00 554 570 7.5 -15.9 1018.3 3 CLR CLR 378FEW389 52 47 15.0 0.0 0.168 9.1 42 04/17 18Z 61 28 26 4 0.00 0.00 555 571 8.0 -15.8 1018.1 3 CLR CLR 377FEW390 61 47 15.0 0.0 0.188 9.1 45 04/17 21Z 67 33 315 8 0.00 0.00 557 571 7.6 -15.3 1016.8 14 CLR CLR 333FEW359 67 61 15.0 0.0 0.236 12.3 48 04/18 00Z 62 39 290 10 0.00 0.00 557 570 7.9 -14.8 1016.3 33 CLR CLR 285SCT357 67 61 15.0 0.0 0.318 12.9 51 04/18 03Z 54 44 287 6 0.00 0.00 557 571 8.7 -15.1 1016.8 67 CLR CLR 263BKN383 62 54 15.0 0.0 0.378 12.8 54 04/18 06Z 52 42 246 2 0.00 0.00 557 571 9.3 -14.9 1017.6 84 CLR 228FEW242 251BKN388 62 52 15.0 0.0 0.387 12.7 57 04/18 09Z 51 43 188 2 0.00 0.00 557 571 9.7 -14.8 1017.0 100 CLR 202BKN241 241OVC402 52 51 15.0 0.0 0.399 12.6 60 04/18 12Z 51 43 160 2 0.00 0.00 556 570 9.5 -15.4 1016.1 100 CLR 189BKN241 241OVC402 52 50 15.0 0.0 0.438 12.6 63 04/18 15Z 53 43 112 2 0.00 0.00 556 570 9.4 -15.8 1016.3 100 CLR 160OVC241 241OVC402 53 51 15.0 0.0 0.441 12.4 66 04/18 18Z 62 41 321 2 0.00 0.00 556 570 9.4 -15.8 1016.0 100 CLR 177BKN240 241OVC402 62 51 15.0 0.0 0.424 11.6 69 04/18 21Z 66 40 271 4 0.00 0.00 557 569 9.5 -15.9 1014.3 100 CLR 211OVC241 241OVC395 66 62 15.0 0.0 0.390 13.8 72 04/19 00Z 66 42 290 6 0.00 0.00 557 568 9.7 -16.1 1012.7 100 CLR 212BKN241 241OVC392 68 62 15.0 0.0 0.435 14.3 75 04/19 03Z 56 45 313 5 0.00 0.00 557 568 9.8 -16.6 1012.9 100 CLR 218BKN240 240OVC389 66 56 15.0 0.0 0.462 14.7 78 04/19 06Z 55 46 292 3 0.00 0.00 556 567 10.0 -17.6 1013.2 100 CLR 208BKN240 240OVC385 66 55 15.0 0.0 0.567 13.9 81 04/19 09Z 53 46 282 2 0.00 0.00 556 566 9.8 -17.2 1012.1 99 CLR 177BKN240 248BKN314 54 53 15.0 0.0 0.535 12.9 84 04/19 12Z 52 45 216 1 0.00 0.00 555 564 9.5 -17.8 1010.9 97 CLR 184BKN238 267BKN331 55 52 15.0 0.0 0.480 12.2 87 04/19 15Z 55 45 223 2 0.00 0.00 554 563 9.3 -17.4 1011.3 87 CLR 181BKN224 285SCT367 55 51 15.0 0.0 0.446 11.2 90 04/19 18Z 62 41 272 4 0.00 0.00 553 563 8.5 -17.5 1011.6 91 CLR 168BKN213 265BKN317 62 51 15.0 0.0 0.435 10.4 93 04/19 21Z 64 40 291 9 0.00 0.00 554 563 7.8 -17.6 1010.7 100 CLR 160BKN191 245OVC383 64 62 15.0 0.0 0.510 11.7 96 04/20 00Z 61 42 284 8 0.00 0.00 554 562 9.0 -17.6 1009.9 100 CLR 177BKN206 242OVC385 64 60 15.0 0.0 0.502 11.8 99 04/20 03Z 55 45 293 5 0.00 0.00 554 563 9.3 -17.8 1010.3 100 CLR 197BKN222 262OVC386 61 55 15.0 0.0 0.453 12.1 102 04/20 06Z 54 45 302 1 0.00 0.00 553 563 8.8 -18.1 1012.2 100 CLR 184BKN208 252OVC379 61 54 15.0 0.0 0.416 11.1 105 04/20 09Z 52 41 140 4 0.00 0.00 552 563 7.6 -17.3 1012.7 99 CLR 158FEW175 240OVC357 54 52 15.0 0.0 0.421 9.8 108 04/20 12Z 51 40 135 5 0.00 0.00 552 562 7.8 -17.0 1012.2 100 CLR 159FEW174 245OVC349 54 51 15.0 0.0 0.442 10.3 111 04/20 15Z 54 41 125 6 0.00 0.00 552 563 7.6 -16.4 1013.4 6 105FEW119 119FEW137 275FEW292 54 50 15.0 0.0 0.540 11.0 114 04/20 18Z 63 39 167 3 0.00 0.00 552 564 7.3 -16.5 1014.0 11 099FEW119 119FEW135 CLR 63 50 15.0 0.0 0.621 10.9 117 04/20 21Z 68 39 267 8 0.00 0.00 554 565 8.4 -16.3 1012.7 11 095FEW119 119FEW129 CLR 69 63 15.0 0.0 0.607 13.8 120 04/21 00Z 65 42 217 14 0.00 0.00 554 565 9.2 -16.0 1012.1 8 096FEW119 119FEW129 CLR 70 63 15.0 0.0 0.671 13.0 123 04/21 03Z 57 47 210 4 0.00 0.00 554 565 9.7 -16.3 1013.1 14 104FEW120 CLR 391FEW421 65 57 15.0 0.0 0.737 12.0 126 04/21 06Z 55 46 118 3 0.00 0.00 554 565 9.6 -16.4 1013.5 13 101FEW120 119FEW136 387FEW414 65 55 15.0 0.0 0.733 12.8 129 04/21 09Z 54 46 68 2 0.00 0.00 553 564 8.8 -16.0 1012.7 11 103FEW117 119FEW135 384FEW412 55 54 15.0 0.0 0.715 11.2 132 04/21 12Z 52 43 127 4 0.00 0.00 552 563 8.1 -17.0 1012.1 11 104FEW117 123FEW138 378FEW402 55 52 15.0 0.0 0.631 11.9 135 04/21 15Z 56 41 122 7 0.00 0.00 550 561 6.1 -18.3 1013.8 9 CLR 146FEW167 CLR 56 52 15.2 0.0 0.777 11.0 138 04/21 18Z 55 50 126 9 0.10 0.00 548 561 5.7 -20.2 1014.6 53 -RA 025SCT118 121BKN225 238FEW277 59 52 14.4 0.0 0.960 9.8 141 04/21 21Z 61 52 139 9 0.04 0.01 548 560 5.2 -21.3 1014.6 90 -RA 007BKN083 178BKN220 237BKN289 61 55 15.0 0.0 0.730 9.4 144 04/22 00Z 63 50 213 7 0.01 0.01 549 560 4.9 -20.6 1013.4 95 -RA 010BKN072 193BKN223 237BKN290 63 55 15.0 0.0 0.690 11.3 147 04/22 03Z 57 50 178 6 0.00 0.00 547 559 5.7 -21.1 1014.0 100 -RA 047FEW058 195OVC236 236BKN285 63 57 15.0 0.0 0.688 10.3 150 04/22 06Z 57 50 143 6 0.00 0.00 545 557 5.2 -21.9 1014.1 100 066SCT099 171OVC226 236BKN277 63 56 15.0 0.0 0.791 9.9 153 04/22 09Z 55 51 159 3 0.02 0.02 545 556 3.8 -23.3 1013.2 100 -TSRA 055BKN116 118OVC235 235BKN254 57 55 14.4 0.0 0.874 9.1 156 04/22 12Z 53 51 106 5 0.15 0.05 544 555 3.8 -22.7 1012.4 99 -TSRA 028BKN116 120BKN227 235BKN254 57 53 6.8 0.0 0.885 8.3 159 04/22 15Z 54 50 112 4 0.09 0.05 544 554 3.4 -22.8 1012.0 100 -TSRA 000BKN115 158BKN204 235OVC273 54 53 11.1 0.0 0.866 7.9 162 04/22 18Z 54 50 101 6 0.09 0.02 543 554 2.6 -22.8 1012.9 100 -TSRA 004OVC115 135BKN221 235OVC278 54 53 14.0 0.0 0.832 6.9 165 04/22 21Z 60 48 338 4 0.01 0.01 544 554 3.9 -23.3 1011.7 100 -RA 012BKN105 117BKN235 235OVC283 60 54 11.3 0.0 0.794 8.8 168 04/23 00Z 59 50 350 9 0.04 0.04 544 554 4.1 -22.8 1011.6 100 -TSRA 023SCT099 123BKN233 235OVC282 61 54 14.0 0.0 0.837 8.6