Station ID: KOAK Lat: 37.71 Long: 122.23 GFS Model Run: 12Z 21FEB 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 02/21 12Z 43 37 114 7 0.00 0.00 544 559 -0.7 -18.7 1019.4 100 000FEW000 000OVC000 000OVC000 **** **** 15.0 0.0 0.485 4.1 3 02/21 15Z 44 36 121 8 0.00 0.00 545 560 -0.2 -17.5 1019.3 100 099FEW114 220BKN237 237OVC324 44 43 15.0 0.0 0.526 4.6 6 02/21 18Z 51 38 139 9 0.00 0.00 546 562 0.4 -16.3 1020.4 100 094FEW110 217BKN238 246OVC326 51 43 15.0 0.0 0.586 4.8 9 02/21 21Z 57 40 184 9 0.00 0.00 547 564 -0.1 -17.2 1020.3 87 044FEW059 187SCT216 309BKN370 57 51 15.0 0.0 0.585 6.4 12 02/22 00Z 56 42 189 13 0.00 0.00 548 564 0.5 -17.7 1019.3 70 048FEW061 188FEW216 322BKN375 57 51 15.0 0.0 0.559 6.5 15 02/22 03Z 51 43 179 10 0.00 0.00 548 565 1.4 -17.3 1020.9 15 051FEW060 CLR 336FEW359 56 51 15.0 0.0 0.548 6.4 18 02/22 06Z 49 43 147 9 0.00 0.00 548 567 0.3 -16.5 1023.0 12 052FEW061 CLR 339FEW363 56 49 15.0 0.0 0.569 5.8 21 02/22 09Z 48 43 134 11 0.00 0.00 548 568 0.9 -16.3 1023.7 82 044SCT063 CLR 348BKN409 49 48 15.0 0.0 0.545 6.4 24 02/22 12Z 49 41 132 14 0.00 0.00 549 568 4.4 -16.4 1022.6 84 045FEW063 CLR 320BKN405 49 48 15.0 0.0 0.613 8.4 27 02/22 15Z 48 39 117 7 0.00 0.00 550 570 4.9 -16.0 1024.2 100 067FEW089 CLR 277OVC401 49 48 15.0 0.0 0.643 8.5 30 02/22 18Z 55 40 131 7 0.00 0.00 551 572 5.8 -16.1 1025.3 100 053BKN089 CLR 276BKN401 55 48 15.0 0.0 0.594 9.4 33 02/22 21Z 60 44 325 1 0.00 0.00 552 573 6.1 -15.5 1024.9 92 068FEW086 CLR 283BKN415 60 55 15.0 0.0 0.604 9.4 36 02/23 00Z 60 45 307 6 0.00 0.00 553 573 6.1 -14.8 1024.2 93 070FEW085 CLR 288BKN401 61 55 15.0 0.0 0.605 10.2 39 02/23 03Z 53 45 344 5 0.00 0.00 554 575 5.9 -14.9 1025.2 87 CLR CLR 333BKN390 60 53 15.0 0.0 0.625 10.4 42 02/23 06Z 51 45 18 2 0.00 0.00 554 576 6.2 -15.1 1026.1 66 CLR CLR 336BKN389 60 51 15.0 0.0 0.624 10.2 45 02/23 09Z 50 45 91 2 0.00 0.00 555 576 6.3 -14.7 1025.6 81 CLR CLR 287BKN399 52 50 15.0 0.0 0.611 10.3 48 02/23 12Z 49 45 61 2 0.00 0.00 555 576 6.3 -14.5 1024.9 47 CLR CLR 294SCT398 52 49 15.0 0.0 0.604 10.5 51 02/23 15Z 48 44 64 2 0.00 0.00 555 576 6.5 -13.8 1024.7 57 CLR CLR 345BKN395 49 48 15.0 0.0 0.613 10.8 54 02/23 18Z 57 46 22 1 0.00 0.00 557 577 7.8 -12.1 1024.3 75 CLR CLR 327BKN402 57 48 15.0 0.0 0.620 11.5 57 02/23 21Z 62 48 283 3 0.00 0.00 559 577 8.9 -11.9 1021.7 90 CLR 233FEW243 354BKN408 63 57 15.0 0.0 0.672 11.5 60 02/24 00Z 61 49 262 2 0.00 0.00 559 576 9.4 -11.8 1019.9 93 CLR 182SCT225 352BKN420 64 57 15.0 0.0 0.834 12.3 63 02/24 03Z 58 49 116 1 0.00 0.00 560 576 10.1 -11.6 1019.7 100 093SCT121 127OVC243 356OVC438 62 57 15.0 0.0 1.045 12.4 66 02/24 06Z 57 49 186 2 0.00 0.00 559 576 9.6 -11.7 1020.3 100 088BKN121 124OVC243 343OVC414 62 57 15.0 0.0 1.138 12.5 69 02/24 09Z 56 49 111 2 0.00 0.00 559 575 8.9 -11.3 1020.1 100 -RA 054OVC120 120OVC239 255BKN425 57 56 15.0 0.0 1.322 10.5 72 02/24 12Z 55 49 110 6 0.01 0.00 559 574 8.4 -10.9 1018.2 100 -RA 036OVC117 120OVC241 254OVC422 57 55 15.0 0.0 1.343 10.6 75 02/24 15Z 55 49 131 7 0.01 0.00 559 573 7.7 -11.7 1017.6 100 -RA 020OVC114 120OVC243 281OVC360 55 55 15.0 0.0 1.358 10.7 78 02/24 18Z 55 50 131 8 0.03 0.00 559 574 8.5 -12.3 1017.9 100 -RA 016OVC113 120OVC243 286BKN359 56 54 15.0 0.0 1.320 11.6 81 02/24 21Z 56 51 148 6 0.01 0.00 559 573 8.9 -12.9 1017.3 100 -RA 018OVC114 120BKN215 353SCT402 57 55 13.3 0.0 1.393 11.0 84 02/25 00Z 56 54 138 6 0.09 0.00 558 572 9.2 -12.7 1016.9 100 -RA 011OVC116 120BKN226 352SCT392 57 55 6.2 0.0 1.432 11.6 87 02/25 03Z 55 54 140 5 0.11 0.00 557 572 8.6 -13.2 1017.8 100 -RA 000OVC120 120OVC243 243BKN269 56 55 5.6 0.0 1.400 11.3 90 02/25 06Z 55 54 167 3 0.07 0.00 557 573 9.0 -13.4 1018.6 100 -RA 000OVC120 120OVC243 250BKN293 56 55 15.0 0.0 1.359 11.2 93 02/25 09Z 55 54 94 2 0.01 0.00 558 573 8.7 -13.8 1017.9 100 -RA 013OVC087 125OVC229 253BKN347 56 55 15.0 0.0 1.312 11.5 96 02/25 12Z 55 55 14 3 0.03 0.00 557 572 8.6 -14.0 1017.8 100 -RA 008OVC081 129BKN230 250BKN354 55 55 7.2 0.0 1.287 11.0 99 02/25 15Z 55 55 343 3 0.04 0.00 556 572 8.4 -14.3 1018.6 100 -RA 000OVC097 124BKN216 259BKN355 55 55 8.0 0.0 1.279 11.2 102 02/25 18Z 56 55 3 2 0.01 0.00 557 574 8.6 -14.1 1020.2 100 -RA 000OVC095 140BKN213 266OVC348 57 55 15.0 0.0 1.195 11.4 105 02/25 21Z 63 57 313 3 0.00 0.00 558 574 9.1 -13.1 1019.2 86 007BKN062 161SCT198 291BKN349 63 57 11.3 0.0 1.124 12.1 108 02/26 00Z 63 57 337 4 0.00 0.00 559 574 9.5 -12.6 1018.4 79 012BKN052 161FEW196 288SCT339 64 57 11.0 0.0 1.078 12.4 111 02/26 03Z 58 56 26 3 0.00 0.00 559 576 10.1 -13.0 1019.5 98 023SCT030 202FEW210 247BKN298 63 58 15.0 0.0 1.005 12.4 114 02/26 06Z 56 54 22 3 0.00 0.00 559 577 10.6 -13.3 1020.7 92 023FEW031 221SCT237 247BKN285 63 56 15.0 0.0 0.987 13.4 117 02/26 09Z 55 53 54 2 0.00 0.00 559 576 10.9 -13.7 1020.7 94 CLR 206BKN229 296SCT336 56 55 15.0 0.0 0.988 13.3 120 02/26 12Z 54 52 47 2 0.00 0.00 559 575 11.3 -13.7 1020.0 90 CLR 183BKN212 304SCT344 56 54 15.0 0.0 1.011 13.6 123 02/26 15Z 53 51 31 3 0.00 0.00 558 576 11.3 -13.2 1020.9 91 105FEW121 146BKN193 310BKN379 54 53 15.0 0.0 1.028 13.7 126 02/26 18Z 60 52 12 2 0.00 0.00 558 577 11.3 -12.4 1022.1 74 101FEW121 149SCT194 316SCT380 60 53 15.0 0.0 1.055 13.8 129 02/26 21Z 65 53 299 5 0.00 0.00 559 577 11.2 -12.1 1021.2 91 099BKN121 121FEW170 369BKN405 65 60 15.0 0.0 1.043 13.6 132 02/27 00Z 65 53 292 5 0.00 0.00 560 577 11.5 -12.2 1019.4 88 099SCT120 121FEW155 349BKN402 66 60 15.0 0.0 1.034 14.5 135 02/27 03Z 56 49 300 4 0.00 0.00 561 578 11.8 -12.8 1020.7 78 103FEW119 121FEW134 350BKN392 65 56 15.0 0.0 0.992 14.7 138 02/27 06Z 55 49 267 2 0.00 0.00 561 579 11.4 -12.6 1021.7 62 103FEW120 188FEW200 353BKN393 66 55 15.0 0.0 0.992 15.1 141 02/27 09Z 54 49 25 0 0.00 0.00 561 579 11.6 -12.9 1021.9 60 CLR CLR 367BKN408 55 54 15.0 0.0 0.940 14.8 144 02/27 12Z 54 49 81 1 0.00 0.00 561 579 12.1 -12.4 1020.8 79 CLR CLR 366BKN407 55 54 15.0 0.0 0.835 15.1 147 02/27 15Z 53 50 10 2 0.00 0.00 562 579 12.8 -11.9 1021.1 100 CLR CLR 345OVC407 54 53 15.0 0.0 0.759 14.8 150 02/27 18Z 62 53 346 2 0.00 0.00 562 580 12.6 -12.0 1021.6 93 CLR CLR 347BKN406 62 53 15.0 0.0 0.730 14.9 153 02/27 21Z 66 52 301 5 0.00 0.00 562 580 12.4 -12.3 1020.4 100 CLR CLR 355OVC409 66 62 11.3 0.0 0.717 14.5 156 02/28 00Z 65 51 300 7 0.00 0.00 563 579 13.3 -12.1 1018.3 98 FEW CLR 353BKN410 67 62 15.0 0.0 0.592 15.1 159 02/28 03Z 58 50 279 3 0.00 0.00 564 579 13.3 -11.6 1018.1 95 CLR CLR 323BKN407 65 57 15.0 0.0 0.580 15.5 162 02/28 06Z 57 51 91 1 0.00 0.00 565 579 13.8 -11.1 1017.5 97 CLR CLR 288BKN383 65 57 15.0 0.0 0.579 16.4 165 02/28 09Z 56 51 118 2 0.00 0.00 564 578 13.1 -11.6 1016.9 100 CLR 217BKN245 248OVC383 57 56 15.0 0.0 0.550 15.8 168 02/28 12Z 56 48 65 3 0.00 0.00 564 577 14.0 -13.4 1015.1 100 CLR 203BKN244 246OVC385 57 55 15.0 0.0 0.559 15.8