Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 30APR 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 04/30 12Z 51 49 192 4 0.00 0.00 560 573 12.0 -13.1 1015.7 54 000BKN000 CLR CLR **** **** 15.0 0.0 0.547 16.1 3 04/30 15Z 53 49 191 3 0.00 0.00 560 573 12.1 -13.1 1015.7 60 008BKN015 CLR CLR 53 51 15.0 0.0 0.557 15.4 6 04/30 18Z 62 50 236 2 0.00 0.00 561 574 12.5 -13.2 1015.3 41 008SCT015 CLR CLR 62 51 15.0 0.0 0.592 15.5 9 04/30 21Z 67 50 285 7 0.00 0.00 562 574 13.2 -13.1 1013.9 0 CLR CLR CLR 68 62 15.0 0.0 0.636 15.5 12 05/01 00Z 62 50 284 8 0.00 0.00 562 574 14.2 -13.8 1013.2 0 CLR CLR CLR 68 60 15.0 0.0 0.600 17.2 15 05/01 03Z 54 50 257 6 0.00 0.00 562 574 14.8 -13.2 1013.9 0 CLR CLR CLR 62 54 15.0 0.0 0.562 17.0 18 05/01 06Z 53 50 224 4 0.00 0.00 562 574 14.8 -11.8 1014.6 13 009FEW015 CLR CLR 62 52 13.5 0.0 0.539 17.4 21 05/01 09Z 53 50 228 4 0.00 0.00 563 574 15.0 -11.8 1013.9 63 008BKN015 CLR CLR 54 53 15.0 0.0 0.526 17.6 24 05/01 12Z 53 49 186 3 0.00 0.00 562 574 14.9 -12.3 1014.0 68 009BKN016 CLR 340FEW374 54 53 15.0 0.0 0.539 17.5 27 05/01 15Z 55 49 169 4 0.00 0.00 562 574 14.5 -12.8 1014.4 40 011SCT017 CLR 325FEW393 55 52 15.0 0.0 0.582 17.1 30 05/01 18Z 63 51 255 2 0.00 0.00 562 574 14.4 -13.1 1014.4 51 011FEW017 CLR 299SCT412 64 52 15.0 0.0 0.582 16.4 33 05/01 21Z 67 51 281 7 0.00 0.00 562 574 14.4 -14.1 1013.3 100 CLR 234FEW243 261OVC415 67 63 15.1 0.0 0.555 16.0 36 05/02 00Z 61 51 279 9 0.00 0.00 562 573 14.4 -13.8 1012.6 98 CLR CLR 270BKN413 67 60 15.0 0.0 0.535 17.5 39 05/02 03Z 54 50 254 6 0.00 0.00 561 572 14.1 -14.1 1012.9 93 014FEW017 200FEW214 279BKN340 61 54 14.7 0.0 0.535 15.8 42 05/02 06Z 53 49 232 7 0.00 0.00 560 571 13.9 -14.7 1013.3 94 008SCT020 200FEW212 282BKN365 61 53 15.1 0.0 0.532 12.6 45 05/02 09Z 54 49 225 7 0.00 0.00 559 570 13.0 -15.7 1013.1 100 000OVC024 232FEW241 242OVC389 54 53 15.0 0.0 0.555 8.8 48 05/02 12Z 53 49 235 9 0.00 0.00 558 569 12.1 -16.8 1012.9 100 000OVC024 204SCT238 244OVC365 54 53 15.0 0.0 0.551 7.5 51 05/02 15Z 53 47 235 9 0.00 0.00 557 568 11.3 -16.6 1013.4 100 000OVC026 172SCT237 297SCT363 54 53 15.0 0.0 0.485 6.7 54 05/02 18Z 57 48 240 9 0.00 0.00 557 568 11.0 -16.6 1013.4 100 004OVC026 172FEW237 283BKN370 57 53 15.0 0.0 0.458 7.6 57 05/02 21Z 59 48 260 12 0.00 0.00 556 567 10.2 -16.9 1012.7 100 FEW 186FEW204 276OVC374 59 57 15.0 0.0 0.493 8.3 60 05/03 00Z 56 48 268 12 0.00 0.00 556 565 9.9 -17.1 1011.4 100 FEW 168BKN206 266OVC369 59 56 15.0 0.0 0.504 7.4 63 05/03 03Z 53 48 267 9 0.00 0.00 555 565 9.9 -17.2 1011.4 100 018FEW023 179BKN204 249OVC358 56 53 15.0 0.0 0.517 6.8 66 05/03 06Z 53 48 259 8 0.00 0.00 555 564 9.6 -16.7 1011.6 100 014BKN025 186SCT213 248OVC356 56 53 15.0 0.0 0.483 6.4 69 05/03 09Z 53 47 258 8 0.00 0.00 554 562 9.1 -17.3 1010.6 100 004OVC028 226FEW239 239OVC352 54 53 15.0 0.0 0.493 6.6 72 05/03 12Z 53 47 249 8 0.00 0.00 552 561 8.6 -17.9 1010.2 100 000OVC030 217SCT238 238OVC351 54 53 15.0 0.0 0.516 6.3 75 05/03 15Z 54 48 247 7 0.00 0.00 551 561 7.8 -20.2 1011.3 100 000OVC034 196OVC238 238OVC341 54 53 15.0 0.0 0.565 6.3 78 05/03 18Z 56 47 253 8 0.00 0.00 550 561 6.9 -20.5 1012.3 100 007OVC035 182OVC238 238OVC331 56 53 15.0 0.0 0.586 6.7 81 05/03 21Z 59 47 269 10 0.00 0.00 550 560 6.4 -20.0 1011.8 96 019BKN037 172BKN237 241BKN316 59 57 15.0 0.0 0.551 7.6 84 05/04 00Z 58 46 270 11 0.00 0.00 550 560 6.8 -19.4 1011.3 93 021SCT037 172SCT237 250BKN315 60 57 15.0 0.0 0.540 7.6 87 05/04 03Z 54 47 261 8 0.00 0.00 550 561 7.1 -18.4 1012.4 41 030FEW032 229FEW238 242SCT257 58 54 15.0 0.0 0.541 6.8 90 05/04 06Z 52 47 246 6 0.00 0.00 550 561 5.8 -18.3 1013.7 25 031FEW033 226FEW236 243FEW258 58 52 15.0 0.0 0.549 6.9 93 05/04 09Z 52 44 231 5 0.00 0.00 549 561 5.8 -18.1 1013.8 49 FEW 213SCT231 267FEW300 52 52 15.0 0.0 0.601 6.6 96 05/04 12Z 52 44 213 5 0.00 0.00 550 561 5.6 -18.0 1013.8 73 FEW 207SCT235 246BKN300 53 52 15.0 0.0 0.640 6.4 99 05/04 15Z 55 44 233 6 0.00 0.00 549 562 3.7 -17.8 1015.1 100 031FEW038 196BKN238 243OVC311 55 52 15.0 0.0 0.638 6.2 102 05/04 18Z 59 43 253 6 0.00 0.00 549 563 4.1 -17.6 1015.9 100 032SCT042 200BKN237 242OVC311 59 52 15.0 0.0 0.666 7.1 105 05/04 21Z 61 45 276 10 0.00 0.00 551 563 3.6 -18.3 1014.9 99 037SCT043 176BKN216 255BKN338 61 59 15.0 0.0 0.673 8.5 108 05/05 00Z 60 45 267 11 0.00 0.00 551 563 5.6 -17.9 1013.8 95 036FEW042 180BKN218 258SCT336 62 59 15.0 0.0 0.692 8.2 111 05/05 03Z 55 46 257 8 0.00 0.00 551 563 5.6 -17.1 1014.8 80 CLR 157BKN235 278BKN339 60 55 15.0 0.0 0.740 7.6 114 05/05 06Z 53 47 255 5 0.00 0.00 551 564 6.4 -16.6 1015.1 81 CLR 153BKN229 296SCT347 60 53 15.0 0.0 0.793 7.8 117 05/05 09Z 53 48 236 4 0.00 0.00 552 563 6.9 -16.4 1014.3 98 093SCT118 119SCT212 296BKN358 53 52 15.0 0.0 0.904 7.9 120 05/05 12Z 54 48 236 4 0.00 0.00 552 563 6.1 -15.5 1014.2 99 079BKN115 119BKN197 278BKN360 54 52 15.0 0.0 0.919 7.6 123 05/05 15Z 55 49 229 5 0.00 0.00 553 565 6.5 -15.8 1015.2 100 059OVC093 146FEW175 267BKN352 55 54 15.0 0.0 0.893 7.4 126 05/05 18Z 59 50 225 6 0.00 0.00 554 567 6.3 -15.4 1015.6 100 054OVC085 149FEW174 283BKN356 59 54 15.0 0.0 1.003 7.8 129 05/05 21Z 61 49 280 9 0.00 0.00 555 568 6.5 -15.5 1015.9 90 035BKN051 119FEW140 343FEW364 61 59 15.0 0.0 1.066 9.0 132 05/06 00Z 59 50 281 10 0.00 0.00 556 569 6.9 -14.9 1015.2 74 045BKN060 120FEW136 340FEW364 62 58 15.0 0.0 1.042 9.0 135 05/06 03Z 55 50 280 7 0.00 0.00 557 570 7.7 -14.4 1016.2 68 034BKN087 CLR 293SCT342 59 54 15.0 0.0 0.962 8.6 138 05/06 06Z 53 49 277 4 0.00 0.00 557 572 7.8 -14.8 1017.7 40 034SCT087 CLR 293FEW339 59 53 14.5 0.0 0.927 8.4 141 05/06 09Z 52 49 269 4 0.00 0.00 557 572 8.5 -14.7 1017.4 90 061FEW065 CLR 281BKN361 53 52 15.0 0.0 0.986 9.0 144 05/06 12Z 52 49 269 3 0.00 0.00 557 572 8.1 -14.9 1017.6 66 021FEW028 CLR 281BKN360 53 52 15.0 0.0 0.992 8.0 147 05/06 15Z 55 49 231 2 0.00 0.00 557 573 7.9 -14.9 1018.8 23 016FEW020 CLR 306FEW331 55 51 15.0 0.0 1.013 8.8 150 05/06 18Z 61 49 286 6 0.00 0.00 558 574 7.9 -13.9 1019.1 23 029FEW036 CLR 308FEW333 61 51 15.0 0.0 1.007 9.3 153 05/06 21Z 63 50 290 10 0.00 0.00 559 575 8.6 -13.9 1018.5 3 057FEW064 CLR CLR 63 61 15.0 0.0 0.975 10.6 156 05/07 00Z 61 50 285 10 0.00 0.00 560 574 9.3 -13.5 1017.6 2 057FEW064 CLR CLR 63 60 15.0 0.0 0.942 12.6 159 05/07 03Z 55 50 279 7 0.00 0.00 559 574 9.9 -12.9 1018.0 83 CLR CLR 318BKN367 60 55 15.0 0.0 0.930 11.8 162 05/07 06Z 53 49 273 5 0.00 0.00 559 574 10.1 -13.1 1018.5 64 CLR CLR 315BKN359 60 53 14.6 0.0 0.908 11.4 165 05/07 09Z 52 49 277 3 0.00 0.00 558 573 10.4 -14.1 1017.6 100 CLR CLR 288OVC385 53 52 15.0 0.0 0.898 11.7 168 05/07 12Z 52 49 254 3 0.00 0.00 557 571 10.1 -16.2 1017.3 100 CLR CLR 270OVC402 53 52 15.0 0.0 0.975 12.2