Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 1MAY 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 05/01 12Z 53 49 209 4 0.00 0.00 562 574 15.3 -12.6 1014.5 83 000BKN000 CLR 000FEW000 **** **** 15.1 0.0 0.558 17.5 3 05/01 15Z 54 49 190 4 0.00 0.00 561 574 15.2 -13.1 1015.2 81 010BKN018 CLR 332FEW414 54 53 15.0 0.0 0.594 16.8 6 05/01 18Z 62 50 246 3 0.00 0.00 562 575 14.8 -13.8 1015.5 82 011SCT018 CLR 303SCT415 62 53 15.0 0.0 0.609 15.9 9 05/01 21Z 66 51 278 8 0.00 0.00 562 574 14.7 -14.5 1014.2 97 CLR CLR 273BKN415 66 62 15.1 0.0 0.629 15.9 12 05/02 00Z 61 51 281 7 0.00 0.00 563 574 14.8 -14.9 1013.0 99 CLR CLR 268OVC413 66 60 15.0 0.0 0.587 18.2 15 05/02 03Z 54 50 269 6 0.00 0.00 562 573 14.4 -14.3 1013.0 84 CLR 213SCT242 309BKN359 61 54 15.1 0.0 0.587 17.0 18 05/02 06Z 53 49 233 5 0.00 0.00 561 573 14.2 -14.6 1013.8 90 009SCT017 213SCT241 294BKN346 61 53 14.6 0.0 0.566 15.4 21 05/02 09Z 53 49 207 5 0.00 0.00 560 572 13.5 -14.8 1013.5 100 010BKN019 197FEW205 242OVC395 54 53 15.0 0.0 0.553 15.0 24 05/02 12Z 53 49 231 5 0.00 0.00 559 570 12.6 -15.4 1013.4 100 007BKN020 208FEW223 242OVC392 54 53 15.0 0.0 0.586 12.7 27 05/02 15Z 54 49 240 6 0.00 0.00 558 570 11.8 -16.0 1014.1 100 000BKN023 188OVC222 241OVC386 54 53 15.0 0.0 0.557 10.3 30 05/02 18Z 57 48 256 7 0.00 0.00 558 570 11.6 -15.9 1014.6 100 000BKN024 187OVC217 241OVC382 57 53 15.0 0.0 0.524 8.7 33 05/02 21Z 59 48 267 10 0.00 0.00 558 569 11.3 -15.9 1013.9 97 017FEW023 195FEW204 268BKN342 59 57 15.0 0.0 0.488 10.9 36 05/03 00Z 57 48 281 9 0.00 0.00 557 568 10.9 -15.8 1012.9 89 017FEW023 195FEW204 269BKN353 60 57 15.0 0.0 0.496 11.4 39 05/03 03Z 53 48 277 6 0.00 0.00 557 567 11.1 -15.8 1012.3 100 CLR 231FEW241 241OVC369 57 53 15.0 0.0 0.479 11.5 42 05/03 06Z 51 48 260 5 0.00 0.00 556 567 11.1 -16.3 1012.9 100 013FEW016 231FEW240 244OVC362 57 51 14.5 0.0 0.497 10.6 45 05/03 09Z 52 48 262 5 0.00 0.00 556 566 11.1 -16.8 1011.8 100 011SCT019 228FEW240 263OVC346 52 51 14.6 0.0 0.512 8.8 48 05/03 12Z 53 47 249 4 0.00 0.00 555 564 10.3 -17.2 1011.2 100 012BKN022 220FEW237 256OVC338 53 51 15.1 0.0 0.514 6.7 51 05/03 15Z 54 47 243 5 0.00 0.00 553 563 9.6 -17.8 1012.3 99 004BKN027 211BKN239 239OVC327 54 53 15.0 0.0 0.521 6.4 54 05/03 18Z 58 47 265 7 0.00 0.00 552 563 8.6 -18.9 1012.6 100 006BKN028 206BKN238 238OVC319 58 53 15.0 0.0 0.530 7.3 57 05/03 21Z 61 48 267 11 0.00 0.00 552 562 8.5 -19.4 1011.6 100 025FEW028 197OVC238 238OVC291 61 58 15.0 0.0 0.538 8.9 60 05/04 00Z 58 47 273 13 0.00 0.00 551 560 8.1 -19.1 1011.3 81 CLR 199BKN238 238BKN283 61 58 15.0 0.0 0.534 7.8 63 05/04 03Z 54 47 266 8 0.00 0.00 551 561 8.1 -19.4 1012.1 0 CLR CLR CLR 58 54 15.0 0.0 0.495 7.1 66 05/04 06Z 53 46 265 7 0.00 0.00 550 561 7.0 -19.8 1013.6 2 FEW CLR CLR 58 53 15.0 0.0 0.547 6.6 69 05/04 09Z 55 44 253 9 0.00 0.00 549 560 6.5 -19.5 1013.0 84 017BKN038 CLR 287FEW300 55 53 15.0 0.0 0.566 6.3 72 05/04 12Z 54 44 231 7 0.00 0.00 548 560 5.5 -19.6 1013.5 90 019BKN039 CLR 286FEW299 55 53 15.0 0.0 0.577 6.3 75 05/04 15Z 55 44 240 5 0.00 0.00 548 560 3.0 -19.9 1014.9 96 021BKN046 CLR 259FEW297 55 54 15.0 0.0 0.606 6.5 78 05/04 18Z 57 44 262 7 0.00 0.00 548 561 2.9 -19.7 1015.4 98 020OVC047 CLR 251SCT297 57 54 15.0 0.0 0.636 6.9 81 05/04 21Z 59 44 270 9 0.00 0.00 549 562 2.4 -19.1 1014.9 100 034BKN047 190BKN238 238OVC309 59 58 15.0 0.0 0.669 7.5 84 05/05 00Z 58 44 266 11 0.00 0.00 550 561 5.0 -18.8 1013.7 100 035BKN047 180BKN238 238OVC309 59 58 15.0 0.0 0.695 7.5 87 05/05 03Z 54 45 269 9 0.00 0.00 550 562 5.2 -17.8 1014.7 68 CLR 169SCT235 284BKN326 58 54 15.0 0.0 0.700 6.7 90 05/05 06Z 52 46 269 7 0.00 0.00 550 563 6.0 -16.5 1015.2 55 CLR 166SCT217 270SCT340 58 52 15.0 0.0 0.788 6.5 93 05/05 09Z 53 47 247 7 0.00 0.00 551 563 6.5 -16.5 1014.3 100 097BKN118 121OVC182 256OVC363 53 52 15.0 0.0 0.886 6.5 96 05/05 12Z 53 48 247 6 0.00 0.00 552 564 5.7 -16.0 1014.3 100 072BKN107 123BKN206 256OVC351 53 52 15.0 0.0 0.976 6.6 99 05/05 15Z 54 49 236 5 0.00 0.00 553 566 5.9 -15.4 1015.0 100 -RA 032OVC085 127SCT218 265OVC354 54 53 15.0 0.0 0.977 6.6 102 05/05 18Z 58 48 267 8 0.00 0.00 555 568 6.6 -15.6 1015.3 96 -RA 027BKN069 132SCT215 267BKN353 58 53 15.0 0.0 0.965 7.4 105 05/05 21Z 60 49 280 10 0.00 0.00 557 570 7.5 -14.7 1015.1 60 028BKN039 CLR CLR 60 58 15.0 0.0 0.936 8.4 108 05/06 00Z 59 49 273 11 0.00 0.00 558 570 7.6 -14.5 1015.0 58 028BKN039 CLR CLR 61 58 15.0 0.0 0.906 8.4 111 05/06 03Z 55 50 268 7 0.00 0.00 558 572 8.8 -14.0 1016.4 25 024FEW031 CLR 369FEW386 59 55 15.0 0.0 0.969 8.0 114 05/06 06Z 52 50 273 4 0.00 0.00 560 574 9.7 -12.4 1017.7 21 018FEW025 CLR 370FEW387 59 52 15.0 0.0 0.996 8.4 117 05/06 09Z 52 50 247 2 0.00 0.00 560 575 10.2 -13.1 1018.1 39 010SCT018 125FEW134 CLR 53 52 15.0 0.0 1.055 8.0 120 05/06 12Z 54 49 253 3 0.00 0.00 560 576 10.1 -12.7 1018.7 61 008BKN022 CLR CLR 54 52 15.0 0.0 1.037 8.5 123 05/06 15Z 55 49 246 1 0.00 0.00 561 577 10.6 -12.5 1019.8 95 000BKN027 CLR CLR 55 53 15.0 0.0 1.034 8.5 126 05/06 18Z 62 51 282 3 0.00 0.00 562 579 11.2 -11.9 1020.0 88 000BKN026 CLR CLR 62 53 15.0 0.0 0.986 9.9 129 05/06 21Z 65 52 283 8 0.00 0.00 564 580 12.2 -11.8 1019.2 1 CLR CLR CLR 66 62 15.0 0.0 0.955 12.3 132 05/07 00Z 61 51 283 9 0.00 0.00 564 580 13.0 -11.9 1018.8 0 CLR CLR CLR 66 60 15.0 0.0 0.935 13.9 135 05/07 03Z 56 51 279 5 0.00 0.00 565 581 14.1 -11.5 1019.2 0 CLR CLR CLR 61 55 15.0 0.0 0.896 14.7 138 05/07 06Z 53 51 268 4 0.00 0.00 565 582 14.9 -11.3 1019.9 0 CLR CLR CLR 61 53 15.0 0.0 0.865 14.9 141 05/07 09Z 52 50 261 2 0.00 0.00 565 581 15.6 -11.5 1019.5 18 009FEW015 CLR CLR 53 52 15.0 0.0 0.815 15.1 144 05/07 12Z 52 50 269 1 0.00 0.00 565 581 15.1 -11.5 1019.3 18 008FEW014 CLR CLR 53 52 15.0 0.0 0.784 15.5 147 05/07 15Z 56 51 272 2 0.00 0.00 565 581 15.0 -11.4 1019.6 1 CLR CLR CLR 56 51 15.0 0.0 0.763 15.7 150 05/07 18Z 64 52 289 6 0.00 0.00 566 582 15.0 -11.1 1018.9 2 CLR CLR 432FEW444 63 51 15.0 0.0 0.750 15.2 153 05/07 21Z 66 53 282 9 0.00 0.00 567 581 15.5 -10.9 1017.6 5 CLR CLR 383FEW409 68 63 15.0 0.0 0.735 17.1 156 05/08 00Z 64 50 281 9 0.00 0.00 567 581 16.0 -10.9 1016.8 38 CLR CLR 329SCT415 68 62 15.0 0.0 0.618 17.7 159 05/08 03Z 55 50 265 5 0.00 0.00 566 580 15.8 -10.7 1017.1 92 CLR CLR 307BKN443 64 55 15.0 0.0 0.593 17.5 162 05/08 06Z 53 49 206 3 0.00 0.00 566 580 15.8 -10.6 1017.3 68 CLR CLR 326BKN447 64 53 15.0 0.0 0.564 17.6 165 05/08 09Z 53 50 201 4 0.00 0.00 565 579 15.4 -10.5 1016.3 99 CLR CLR 332BKN457 53 53 15.0 0.0 0.575 16.9 168 05/08 12Z 52 50 201 4 0.00 0.00 565 578 14.5 -10.7 1015.9 99 CLR CLR 317BKN456 53 52 15.0 0.0 0.565 16.2