Station ID: KOAK Lat: 37.71 Long: -122.23 NAM Model Run: 0Z 21MAY 2026 Cloud base 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 Tot Snowfall Vis Deg F Deg F deg kt in. in. Thk GPH Tmp Tmp mb % TEXT Clouds in SM 0 05/21 00Z 75 52 266 8 0.00 0.00 566 576 16.5 -12.6 1011 0 CLR 0.0 15.0 3 05/21 03Z 63 53 242 6 0.00 0.00 566 576 16.7 -11.7 1012 3 304FEW305 0.0 14.5 6 05/21 06Z 57 52 214 5 0.00 0.00 567 578 16.9 -10.8 1012 5 240FEW245 0.0 13.6 9 05/21 09Z 54 51 209 5 0.00 0.00 567 577 17.0 -9.5 1012 19 000FEW004 0.0 12.8 12 05/21 12Z 51 49 219 4 0.00 0.00 568 577 17.2 -9.6 1011 43 002SCT006 0.0 4.1 15 05/21 15Z 51 48 229 4 0.00 0.00 568 578 16.9 -9.7 1012 77 002BKN008 0.0 3.8 18 05/21 18Z 59 50 244 5 0.00 0.00 568 578 16.8 -9.8 1012 72 000BKN006 0.0 12.7 21 05/21 21Z 69 53 255 7 0.00 0.00 569 578 17.1 -10.0 1011 22 000FEW006 0.0 12.7 24 05/22 00Z 67 53 251 7 0.00 0.00 569 578 17.4 -10.2 1009 21 000FEW006 0.0 12.7 27 05/22 03Z 57 51 239 6 0.00 0.00 569 577 17.5 -10.5 1009 22 000FEW006 0.0 12.7 30 05/22 06Z 53 50 218 5 0.00 0.00 568 577 17.7 -11.0 1009 22 131FEW135 0.0 12.8 33 05/22 09Z 51 49 223 5 0.00 0.00 568 575 17.6 -11.6 1009 69 002BKN008 0.0 4.3 36 05/22 12Z 49 47 229 5 0.00 0.00 567 575 17.6 -12.0 1009 69 002BKN008 0.0 4.7 39 05/22 15Z 50 47 224 4 0.00 0.00 567 575 17.3 -11.9 1009 72 002BKN008 0.0 4.7 42 05/22 18Z 61 49 245 6 0.00 0.00 566 575 16.9 -11.8 1009 60 000BKN008 0.0 12.7 45 05/22 21Z 66 51 249 8 0.00 0.00 567 575 16.9 -11.8 1009 20 000FEW009 0.0 12.7 48 05/23 00Z 63 52 249 8 0.00 0.00 567 575 17.6 -11.3 1009 20 000FEW008 0.0 13.4 51 05/23 03Z 56 50 246 7 0.00 0.00 567 575 17.7 -10.9 1009 20 000FEW010 0.0 12.7 54 05/23 06Z 53 50 234 6 0.00 0.00 567 576 17.6 -10.6 1011 45 002SCT010 0.0 3.6 57 05/23 09Z 51 49 236 6 0.00 0.00 566 575 17.4 -10.8 1011 69 002BKN011 0.0 4.9 60 05/23 12Z 50 48 228 5 0.00 0.00 565 575 17.2 -11.2 1012 69 002BKN012 0.0 5.8 63 05/23 15Z 51 48 233 5 0.00 0.00 564 576 17.1 -11.1 1013 69 002BKN012 0.0 5.7 66 05/23 18Z 57 49 253 6 0.00 0.00 564 576 17.0 -11.3 1014 67 194BKN205 0.0 13.6 69 05/23 21Z 63 50 257 8 0.00 0.00 565 577 17.0 -11.7 1014 26 000SCT013 0.0 13.3 72 05/24 00Z 61 51 258 9 0.00 0.00 565 577 17.0 -11.7 1014 22 000FEW013 0.0 13.4 75 05/24 03Z 55 51 255 7 0.00 0.00 565 577 17.0 -12.2 1014 54 004BKN012 0.0 13.5 78 05/24 06Z 53 50 250 6 0.00 0.00 565 578 16.7 -12.7 1016 67 000BKN013 0.0 5.3 81 05/24 09Z 52 49 246 6 0.00 0.00 564 578 16.2 -12.5 1016 74 000BKN015 0.0 6.1 84 05/24 12Z 51 49 235 5 0.00 0.00 563 577 15.9 -12.7 1016 81 003BKN013 0.0 7.5