Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 9APR 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 04/09 12Z 55 53 213 1 0.00 0.00 554 566 9.8 -17.4 1014.6 100 000BKN000 000OVC000 000OVC000 **** **** 14.7 0.0 0.908 12.9 3 04/09 15Z 56 53 234 1 0.00 0.00 553 566 9.2 -17.5 1014.7 100 000BKN015 230FEW240 243OVC384 56 55 14.9 0.0 0.913 12.5 6 04/09 18Z 63 54 279 2 0.00 0.00 553 566 8.5 -17.8 1014.8 100 015BKN029 195FEW203 245OVC380 63 55 15.0 0.0 0.898 12.2 9 04/09 21Z 67 54 287 9 0.00 0.00 553 565 8.3 -18.2 1013.8 75 086FEW099 CLR 285BKN362 67 63 15.0 0.0 0.853 13.0 12 04/10 00Z 64 54 274 11 0.00 0.00 553 564 8.5 -18.5 1012.5 69 085FEW099 CLR 287BKN359 68 63 15.0 0.0 0.861 12.1 15 04/10 03Z 57 54 283 6 0.00 0.00 552 563 7.6 -18.8 1012.5 35 CLR CLR 294SCT339 64 57 14.9 0.0 0.878 11.0 18 04/10 06Z 56 53 307 3 0.00 0.00 550 562 6.5 -19.3 1013.1 36 054FEW115 CLR 293FEW338 64 56 14.9 0.0 0.929 10.4 21 04/10 09Z 56 53 351 2 0.00 0.00 549 559 5.7 -20.1 1012.2 72 016BKN070 118FEW126 CLR 57 55 14.7 0.0 0.893 9.9 24 04/10 12Z 55 53 110 3 0.03 0.03 548 558 5.6 -21.1 1011.4 74 -TSRA 015BKN058 119FEW132 CLR 57 55 10.3 0.0 0.887 9.9 27 04/10 15Z 55 53 132 5 0.06 0.06 547 557 5.4 -21.8 1011.7 11 -TSRA 039FEW051 126FEW139 247FEW256 55 53 10.2 0.0 0.854 10.1 30 04/10 18Z 60 53 191 5 0.07 0.07 546 556 5.4 -23.0 1011.6 31 -TSRA 052FEW063 127FEW139 239FEW284 60 53 11.2 0.0 0.826 10.0 33 04/10 21Z 65 48 217 13 0.05 0.05 547 556 5.2 -22.4 1010.2 61 -TSRA 058FEW073 182BKN235 237FEW282 65 60 11.7 0.0 0.773 11.5 36 04/11 00Z 61 50 206 14 0.02 0.02 548 555 5.6 -22.3 1008.9 72 -TSRA 061FEW081 182SCT234 236SCT291 65 60 15.0 0.0 0.786 10.5 39 04/11 03Z 56 51 187 12 0.00 0.00 546 554 5.0 -22.8 1009.9 73 050FEW074 182SCT234 236BKN287 61 56 15.2 0.0 0.844 8.4 42 04/11 06Z 55 51 189 9 0.00 0.00 545 554 4.6 -23.1 1010.8 82 029FEW046 150SCT226 236BKN283 61 55 15.2 0.0 0.841 8.6 45 04/11 09Z 53 50 176 5 0.01 0.01 545 554 3.8 -22.2 1010.9 43 -RA 038FEW067 118FEW181 239FEW263 55 53 15.0 0.0 0.808 7.8 48 04/11 12Z 52 49 175 5 0.00 0.00 545 554 3.5 -20.9 1010.9 32 -RA 039FEW067 129FEW188 240FEW263 55 52 15.3 0.0 0.760 7.4 51 04/11 15Z 54 50 160 8 0.00 0.00 546 555 3.1 -21.1 1010.8 72 -RA 033SCT053 156BKN187 294SCT325 54 51 14.9 0.0 0.792 7.2 54 04/11 18Z 56 50 172 12 0.05 0.05 545 554 3.3 -21.3 1010.4 86 -TSRA 031SCT082 149BKN193 287BKN320 57 51 7.4 0.0 0.836 7.8 57 04/11 21Z 60 48 192 18 0.04 0.04 545 552 3.3 -21.5 1008.1 100 -TSRA 036BKN090 134OVC202 268FEW295 60 56 14.3 0.0 0.741 9.1 60 04/12 00Z 59 48 176 20 0.03 0.03 543 548 3.3 -23.7 1004.9 100 -TSRA 042BKN084 128OVC204 242BKN286 60 56 7.1 0.0 0.785 9.3 63 04/12 03Z 48 44 169 13 0.45 0.03 538 543 0.1 -23.9 1006.3 100 -TSRA 014OVC116 116OVC219 232SCT269 58 46 10.7 0.0 0.586 5.3 66 04/12 06Z 50 45 185 17 0.00 0.00 538 542 1.1 -27.9 1004.8 98 -TSRA 017BKN111 130BKN224 231BKN263 58 46 14.2 0.0 0.588 5.6 69 04/12 09Z 51 45 181 18 0.08 0.08 537 541 0.9 -28.2 1004.9 88 -TSRA 011BKN102 177BKN230 230SCT245 51 50 6.6 0.0 0.686 5.4 72 04/12 12Z 46 43 208 8 0.28 0.07 537 541 -0.1 -26.8 1005.5 94 -TSRA 007BKN102 142BKN230 231BKN245 51 46 3.8 0.0 0.649 3.4 75 04/12 15Z 49 44 183 7 0.10 0.01 535 541 -0.5 -29.0 1007.8 97 -RA 012BKN105 120BKN223 230BKN247 49 46 14.1 0.0 0.619 4.1 78 04/12 18Z 52 44 210 10 0.06 0.06 535 543 0.0 -29.0 1010.1 98 -TSRA 016BKN110 134BKN212 231SCT248 52 46 8.6 0.0 0.604 4.9 81 04/12 21Z 54 44 230 10 0.06 0.06 536 545 0.0 -28.6 1010.9 100 -TSRA 044BKN105 116OVC230 231FEW240 54 52 7.8 0.0 0.644 5.7 84 04/13 00Z 54 44 240 7 0.07 0.07 537 546 0.5 -28.1 1011.4 94 -TSRA 039BKN105 127BKN221 231FEW241 54 52 10.8 0.0 0.617 5.4 87 04/13 03Z 49 44 128 4 0.02 0.02 538 549 0.6 -27.6 1013.6 63 -TSRA 036BKN070 180FEW202 CLR 53 49 15.0 0.0 0.623 5.4 90 04/13 06Z 46 44 38 5 0.00 0.00 539 553 0.4 -24.5 1016.4 57 -RA 040BKN075 181FEW203 CLR 53 46 15.0 0.0 0.585 5.6 93 04/13 09Z 45 42 26 3 0.00 0.00 541 556 0.8 -22.4 1017.6 60 031FEW047 CLR 270SCT305 46 45 15.0 0.0 0.550 5.6 96 04/13 12Z 44 42 34 3 0.00 0.00 543 558 1.2 -21.7 1018.4 51 035FEW049 CLR 270SCT309 46 44 15.0 0.0 0.548 5.6 99 04/13 15Z 47 44 357 2 0.00 0.00 543 560 1.1 -21.0 1020.1 52 048FEW053 FEW 250SCT300 47 44 15.0 0.0 0.625 5.6 102 04/13 18Z 55 44 290 4 0.00 0.00 545 563 0.9 -20.3 1021.3 29 051FEW064 CLR 251SCT301 55 44 15.0 0.0 0.640 5.6 105 04/13 21Z 57 46 279 9 0.00 0.00 547 565 1.7 -19.8 1020.7 55 039BKN061 CLR 279FEW290 57 55 15.0 0.0 0.624 6.8 108 04/14 00Z 57 47 277 10 0.00 0.00 548 565 2.4 -19.5 1020.2 52 039SCT059 CLR 276FEW287 58 55 15.0 0.0 0.615 6.8 111 04/14 03Z 52 46 272 7 0.00 0.00 549 566 2.4 -17.9 1021.0 58 047BKN056 230FEW239 255FEW282 57 52 15.0 0.0 0.585 7.2 114 04/14 06Z 49 45 272 6 0.00 0.00 549 567 3.3 -17.2 1021.8 43 047SCT056 CLR 282FEW323 56 49 15.0 0.0 0.560 6.3 117 04/14 09Z 48 44 253 5 0.00 0.00 550 568 4.2 -16.2 1021.7 8 FEW CLR 306FEW319 49 48 15.0 0.0 0.498 6.2 120 04/14 12Z 48 43 236 5 0.00 0.00 550 568 4.4 -16.5 1022.0 8 FEW CLR 296FEW308 49 47 15.0 0.0 0.463 4.8 123 04/14 15Z 50 43 224 5 0.00 0.00 551 569 4.5 -15.8 1022.9 22 019FEW024 CLR 382FEW404 50 47 15.0 0.0 0.485 4.1 126 04/14 18Z 55 43 250 6 0.00 0.00 552 571 4.9 -15.7 1023.2 29 020FEW026 CLR 331FEW377 55 47 15.0 0.0 0.543 5.0 129 04/14 21Z 58 43 272 8 0.00 0.00 554 572 6.1 -15.5 1022.3 30 CLR CLR 305SCT399 58 55 15.0 0.0 0.564 6.8 132 04/15 00Z 57 44 272 7 0.00 0.00 555 572 7.0 -15.1 1020.7 51 CLR CLR 278SCT410 58 55 15.0 0.0 0.596 8.4 135 04/15 03Z 51 44 265 5 0.00 0.00 555 572 7.4 -15.2 1021.0 100 CLR 207BKN241 254OVC369 57 51 15.0 0.0 0.659 9.0 138 04/15 06Z 50 44 229 3 0.00 0.00 555 572 7.4 -16.0 1021.1 100 CLR 202BKN241 258BKN344 57 50 15.0 0.0 0.690 9.1 141 04/15 09Z 49 44 196 4 0.00 0.00 555 571 7.8 -15.8 1020.0 62 CLR 192BKN241 273SCT316 50 49 15.0 0.0 0.660 9.4 144 04/15 12Z 48 44 173 4 0.00 0.00 555 570 7.8 -15.4 1018.8 68 CLR 191SCT240 315SCT367 50 48 15.0 0.0 0.659 9.9 147 04/15 15Z 51 45 163 4 0.00 0.00 554 570 7.9 -15.3 1018.8 89 CLR 192FEW222 331BKN420 51 48 15.0 0.0 0.659 10.1 150 04/15 18Z 57 45 237 2 0.00 0.00 553 569 8.0 -15.8 1018.8 95 CLR 196FEW224 293BKN421 57 48 15.0 0.0 0.674 9.6 153 04/15 21Z 60 45 286 5 0.00 0.00 553 568 8.0 -16.9 1017.7 100 CLR 203BKN240 240OVC426 60 57 15.0 0.0 0.672 9.6 156 04/16 00Z 56 46 272 8 0.00 0.00 553 566 8.1 -17.2 1016.3 100 CLR 193BKN240 247OVC413 60 55 15.0 0.0 0.690 10.2 159 04/16 03Z 53 46 222 4 0.00 0.00 552 565 8.5 -17.4 1015.5 100 CLR 150OVC239 247OVC402 56 53 15.0 0.0 0.678 10.8 162 04/16 06Z 52 47 178 5 0.00 0.00 551 564 8.3 -17.7 1015.1 100 108FEW119 134OVC239 243OVC398 56 52 15.0 0.0 0.700 11.4 165 04/16 09Z 51 47 181 4 0.00 0.00 551 562 8.4 -17.5 1014.2 100 113FEW119 119OVC239 239OVC387 52 51 15.0 0.0 0.762 10.2 168 04/16 12Z 50 48 245 4 0.00 0.00 550 561 8.1 -17.0 1013.4 99 055FEW062 118BKN233 241BKN370 52 50 15.0 0.0 0.738 9.0