Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 27MAY 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 05/27 12Z 51 47 166 5 0.00 0.00 544 550 5.7 -23.5 1007.9 84 000BKN000 000BKN000 CLR **** **** 15.0 0.0 0.714 7.8 3 05/27 15Z 55 47 145 5 0.00 0.00 544 551 5.3 -24.9 1008.5 66 -RA 021SCT033 163BKN199 CLR 54 51 15.0 0.0 0.700 8.2 6 05/27 18Z 62 46 266 3 0.00 0.00 546 553 5.3 -22.5 1009.0 37 -RA 028FEW042 164SCT200 CLR 62 51 15.1 0.0 0.681 10.0 9 05/27 21Z 64 47 286 10 0.00 0.00 549 556 7.0 -20.8 1008.2 76 FEW 222FEW235 240BKN273 64 61 15.0 0.0 0.634 11.6 12 05/28 00Z 59 47 266 10 0.00 0.00 550 557 7.7 -19.1 1008.2 88 FEW 176BKN237 239BKN273 65 58 15.0 0.0 0.665 10.5 15 05/28 03Z 54 49 285 6 0.00 0.00 549 557 7.0 -18.4 1009.2 100 058FEW062 136BKN228 242BKN305 59 54 15.0 0.0 0.797 7.5 18 05/28 06Z 53 50 155 2 0.02 0.00 549 558 5.9 -18.6 1010.0 100 -RA 071SCT099 125BKN230 245OVC304 59 53 15.0 0.0 0.871 10.6 21 05/28 09Z 53 49 182 4 0.00 0.00 548 555 5.4 -19.3 1008.8 100 058BKN111 118OVC227 242OVC326 53 53 15.0 0.0 0.888 8.2 24 05/28 12Z 53 49 102 3 0.01 0.00 546 554 3.1 -20.9 1009.6 100 036BKN112 117OVC231 239OVC300 53 52 15.2 0.0 0.877 8.2 27 05/28 15Z 54 49 83 5 0.06 0.00 545 555 2.9 -21.6 1011.1 100 -RA 018OVC114 118OVC235 236FEW245 54 53 13.4 0.0 0.840 7.8 30 05/28 18Z 60 49 108 6 0.01 0.01 547 557 3.6 -20.9 1011.3 86 -RA 017BKN112 121BKN227 236FEW246 60 53 12.6 0.0 0.846 9.1 33 05/28 21Z 65 48 214 3 0.00 0.00 550 559 5.4 -20.3 1011.4 80 -RA 048BKN087 174FEW213 237FEW256 65 60 15.0 0.0 0.817 11.8 36 05/29 00Z 65 48 295 11 0.00 0.00 552 562 6.6 -18.9 1011.3 74 044BKN083 179FEW215 239FEW259 66 60 15.0 0.0 0.749 12.5 39 05/29 03Z 56 48 258 5 0.00 0.00 553 564 6.9 -16.6 1013.1 12 063FEW072 142FEW169 274FEW307 65 56 15.0 0.0 0.833 11.5 42 05/29 06Z 53 49 239 4 0.00 0.00 553 566 6.6 -15.7 1014.7 42 075FEW086 152FEW175 288SCT325 65 53 15.0 0.0 0.953 9.5 45 05/29 09Z 54 50 220 1 0.00 0.00 554 566 6.0 -15.0 1014.8 75 087SCT119 129BKN202 259FEW284 54 53 15.0 0.0 1.072 8.6 48 05/29 12Z 52 49 241 3 0.00 0.00 555 567 5.6 -14.2 1015.2 79 077BKN111 127BKN208 270FEW296 55 52 15.0 0.0 1.080 7.7 51 05/29 15Z 55 50 212 4 0.00 0.00 555 569 4.0 -14.5 1016.2 70 -RA 008BKN050 143FEW182 254SCT303 55 52 15.0 0.0 0.993 7.5 54 05/29 18Z 57 50 265 6 0.01 0.01 556 570 4.4 -14.7 1017.2 85 -RA 005BKN054 164FEW199 249SCT289 57 52 15.0 0.0 0.996 7.5 57 05/29 21Z 61 50 283 7 0.00 0.00 557 572 7.1 -13.9 1017.6 73 020BKN051 CLR CLR 61 57 15.0 0.0 0.948 8.8 60 05/30 00Z 62 50 293 7 0.00 0.00 558 572 8.0 -13.2 1016.9 64 023BKN049 CLR CLR 62 57 15.1 0.0 0.831 10.0 63 05/30 03Z 55 51 291 6 0.00 0.00 559 573 8.6 -13.4 1017.3 36 034FEW046 CLR 280FEW350 62 55 15.1 0.0 0.796 11.9 66 05/30 06Z 52 50 267 3 0.00 0.00 559 573 9.0 -13.5 1017.9 23 034FEW046 CLR 276FEW345 62 52 13.7 0.0 0.761 12.0 69 05/30 09Z 51 50 239 2 0.00 0.00 558 573 8.9 -13.8 1017.7 46 FEW 214FEW242 242SCT279 52 51 14.5 0.0 0.747 11.7 72 05/30 12Z 51 50 192 3 0.00 0.00 557 572 8.7 -14.8 1017.8 72 FEW 201SCT242 246BKN308 52 51 15.0 0.0 0.758 11.8 75 05/30 15Z 56 50 199 2 0.00 0.00 556 572 8.7 -15.4 1018.5 41 CLR 173FEW207 242SCT324 56 51 15.0 0.0 0.734 11.7 78 05/30 18Z 63 51 290 6 0.00 0.00 557 573 9.1 -14.4 1018.5 21 CLR 165FEW194 243FEW323 63 51 15.0 0.0 0.625 11.4 81 05/30 21Z 65 50 280 9 0.00 0.00 558 573 10.2 -14.9 1018.0 0 CLR CLR CLR 65 63 15.2 0.0 0.504 13.6 84 05/31 00Z 61 47 265 8 0.00 0.00 559 574 11.7 -15.2 1017.5 0 CLR CLR CLR 65 61 15.0 0.0 0.407 14.1 87 05/31 03Z 54 46 242 6 0.00 0.00 559 575 12.5 -14.8 1018.1 0 CLR CLR CLR 61 54 15.0 0.0 0.333 15.6 90 05/31 06Z 51 46 178 5 0.00 0.00 560 575 13.6 -14.6 1017.8 0 CLR CLR CLR 61 51 15.0 0.0 0.325 16.6 93 05/31 09Z 49 46 179 5 0.00 0.00 561 575 13.3 -13.6 1017.4 0 CLR CLR CLR 51 49 15.0 0.0 0.334 15.7 96 05/31 12Z 49 46 167 5 0.00 0.00 560 575 13.0 -14.1 1017.2 1 CLR CLR CLR 51 49 15.0 0.0 0.366 15.7 99 05/31 15Z 54 46 142 3 0.00 0.00 561 575 12.8 -14.3 1017.3 1 CLR CLR CLR 54 48 15.0 0.0 0.425 16.3 102 05/31 18Z 65 48 267 3 0.00 0.00 562 576 13.0 -14.0 1016.1 0 CLR CLR CLR 66 48 15.0 0.0 0.489 15.6 105 05/31 21Z 69 49 296 10 0.00 0.00 564 577 14.0 -13.3 1015.4 3 FEW CLR CLR 71 65 15.0 0.0 0.457 17.2 108 06/01 00Z 66 47 288 8 0.00 0.00 565 578 14.8 -13.0 1014.6 1 FEW CLR CLR 71 62 15.0 0.0 0.401 19.3 111 06/01 03Z 58 47 258 5 0.00 0.00 566 578 15.7 -12.4 1014.7 0 CLR CLR CLR 66 58 15.0 0.0 0.344 19.1 114 06/01 06Z 52 48 223 4 0.00 0.00 566 579 16.1 -12.2 1015.6 0 CLR CLR CLR 66 52 15.0 0.0 0.299 19.4 117 06/01 09Z 50 48 223 3 0.00 0.00 567 579 16.4 -11.9 1015.1 0 CLR CLR CLR 52 50 15.0 0.0 0.283 19.5 120 06/01 12Z 50 47 192 3 0.00 0.00 567 579 16.2 -11.7 1015.0 0 CLR CLR CLR 52 50 14.9 0.0 0.286 19.1 123 06/01 15Z 56 48 199 2 0.00 0.00 567 580 16.2 -11.8 1015.5 0 CLR CLR CLR 56 50 15.0 0.0 0.291 19.1 126 06/01 18Z 66 48 276 4 0.00 0.00 568 581 16.3 -11.4 1015.1 1 CLR CLR 340FEW351 66 50 15.1 0.0 0.267 19.1 129 06/01 21Z 69 49 285 8 0.00 0.00 569 582 16.9 -11.0 1014.7 0 CLR CLR 374FEW385 70 66 15.1 0.0 0.256 20.2 132 06/02 00Z 64 48 284 8 0.00 0.00 569 582 17.8 -10.5 1015.1 2 CLR CLR 371FEW387 70 63 15.1 0.0 0.255 20.7 135 06/02 03Z 57 48 264 4 0.00 0.00 570 583 18.4 -9.9 1015.6 3 CLR CLR 374FEW408 63 56 15.0 0.0 0.260 20.6 138 06/02 06Z 52 48 244 3 0.00 0.00 570 584 18.6 -9.7 1016.7 35 CLR CLR 349SCT428 63 52 15.0 0.0 0.262 20.6 141 06/02 09Z 50 48 240 3 0.00 0.00 570 584 18.7 -9.0 1016.3 76 CLR CLR 335BKN392 52 50 14.9 0.0 0.276 20.5 144 06/02 12Z 50 48 188 3 0.00 0.00 570 583 18.6 -8.7 1015.8 78 007FEW011 CLR 324BKN395 52 50 15.0 0.0 0.272 20.7 147 06/02 15Z 55 48 194 3 0.00 0.00 571 584 18.7 -8.6 1016.3 36 CLR CLR 345SCT430 55 50 15.0 0.0 0.273 21.0 150 06/02 18Z 66 49 285 3 0.00 0.00 571 585 18.7 -8.6 1016.3 52 CLR CLR 351SCT430 66 50 15.1 0.0 0.286 20.5 153 06/02 21Z 68 50 285 10 0.00 0.00 572 586 18.9 -8.5 1016.0 51 CLR CLR 374SCT447 71 66 15.2 0.0 0.312 21.3 156 06/03 00Z 63 49 278 10 0.00 0.00 572 586 19.2 -8.0 1015.8 75 CLR CLR 323BKN433 71 63 15.0 0.0 0.367 20.8 159 06/03 03Z 56 49 240 5 0.00 0.00 572 586 19.9 -7.6 1016.2 100 CLR 218BKN248 293OVC419 63 56 15.0 0.0 0.451 21.4 162 06/03 06Z 53 49 178 6 0.00 0.00 574 587 20.3 -6.7 1015.8 100 CLR 217SCT248 286OVC440 63 53 13.5 0.0 0.528 22.2 165 06/03 09Z 52 49 179 5 0.00 0.00 574 587 20.3 -6.8 1015.0 100 FEW CLR 345OVC411 53 52 15.0 0.0 0.546 21.0 168 06/03 12Z 51 49 175 5 0.00 0.00 574 586 20.5 -6.5 1014.4 100 FEW CLR 332OVC411 53 51 15.0 0.0 0.581 20.1