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Alton / St. Louis Regional
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D
a
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Time
(cdt)
Wind
(mph)
Vis.
(mi.)
WeatherSky Cond. Temperature (ºF)Relative
Humidity
PressurePrecipitation (in.)
AirDwpt6 hour altimeter
(in.)
sea level
(mb)
1 hr 3 hr6 hr
Max.Min.
3012:45SE 77.00OvercastBKN012 OVC0216361 94%29.76NA
3011:45SE 77.00OvercastOVC0096159 94%29.77NA
3010:51E 63.00 RainOVC0065959 100%29.78NA
3009:55SE 90.00 RainOVC0065957 94%29.78NA
3008:57SE 16 G 237.00OvercastOVC0065757 100%29.76NA
3007:50E 14 G 235.00 RainOVC0065755 94%29.80NA
3007:35E 14 G 205.00 Light RainOVC0065756 97%29.81NA0.04
3007:15E 9 G 174.00 RainOVC0065656 97%29.83NA0.02
3006:55E 105.00 RainOVC0065656 565697%29.83NA0.030.68
3006:50E 123.00 Light RainOVC0065755 94%29.83NA
3006:35E 10 G 167.00 RainBKN009 OVC0135655 97%29.83NA0.02
3006:15E 12 G 1610.00 DrizzleOVC0095655 97%29.84NA
3005:55E 97.00 DrizzleOVC0075655 97%29.84NA0.06
3005:35E 97.00 RainOVC0055655 98%29.85NA0.05
3005:15E 125.00 RainOVC0055655 98%29.86NA0.04
3004:55E 124.00 RainBKN005 OVC0115655 98%29.88NA0.27
3004:35E 73.00 Heavy RainOVC0075655 98%29.89NA0.12
3004:15E 84.00 RainBKN007 BKN016 OVC0305655 97%29.88NA0.04
3003:55E 97.00 RainSCT009 BKN030 OVC0345655 96%29.89NA0.020.31
3003:35E 810.00OvercastBKN009 OVC0365655 96%29.89NA
3003:15E 910.00 Light DrizzleBKN011 OVC0365655 96%29.89NA
3002:55E 57.00 Light DrizzleSCT011 OVC0365655 95%29.90NA0.01
3002:35E 8 G 1610.00 Light RainSCT007 OVC0365655 94%29.90NA0.01
3002:15E 810.00OvercastBKN007 BKN036 OVC0425655 97%29.90NA
3001:55E 95.00 Thunderstorm RainBKN008 BKN030 OVC0705655 97%29.91NA0.28
3001:35E 94.00 Heavy RainSCT015 BKN046 OVC0705655 97%29.91NA0.23
3001:15E 95.00 Thunderstorm Rain in VicinitySCT017 BKN047 OVC0905655 96%29.92NA0.09
3000:55E 104.00 Heavy RainSCT027 BKN049 OVC0705655 615696%29.93NA0.190.19
3000:35E 54.00 Thunderstorm Heavy RainSCT038 BKN060 OVC0705755 93%29.94NA0.04
3000:15E 67.00 DrizzleOVC0375855 89%29.94NA
2923:55E 610.00 Thunderstorm Light Drizzle in VicinityBKN040 OVC0465854 86%29.95NA
2923:35E 710.00OvercastOVC0445954 83%29.96NA
2923:15E 710.00OvercastSCT044 OVC0705954 83%29.96NA
2921:45E 710.00OvercastOVC0706152 72%29.98NA
2920:45E 810.00OvercastOVC0906154 77%29.97NA
2918:45NE 9210.00Overcast and WindyOVC0906152 72%29.97NA
2917:45E 710.00OvercastOVC1006352 68%29.99NA
2916:45E 910.00OvercastSCT027 BKN080 OVC1106352 68%29.99NA
2915:47E 910.00OvercastSCT028 BKN150 OVC2506352 68%30.02NA
2914:45E 910.00Mostly CloudySCT028 BKN1506352 68%30.03NA
2913:47E 610.00OvercastBKN030 OVC1506150 68%30.05NA
2912:59E 610.00OvercastBKN030 OVC1506150 68%30.05NA
2911:45E 610.00OvercastBKN025 OVC1505950 72%30.07NA
2910:50NE 610.00OvercastSCT021 OVC1505950 72%30.05NA
2909:50N 810.00OvercastOVC1505550 82%30.04NA
2908:50N 610.00OvercastOVC1205448 82%30.07NA
2907:50N 710.00Mostly CloudyBKN1505448 82%30.06NA
2907:35N 510.00FairCLR5349 84%30.05NA
2907:15Calm10.00FairCLR5248 86%30.05NA
2906:55Calm10.00FairCLR5147 514988%30.04NA
2906:50Calm10.00Partly CloudySCT1505048 94%30.04NA
2906:35Calm10.00FairCLR5047 90%30.05NA
2906:15N 310.00FairCLR5047 91%30.05NA
2905:55NW 310.00FairCLR5148 89%30.05NA
2905:35Calm10.00FairCLR5148 91%30.07NA
2905:15Calm10.00FairCLR5148 91%30.06NA
2904:55Calm10.00FairCLR4948 94%30.07NA
2904:35Calm10.00FairCLR5048 93%30.07NA
2904:15W 310.00FairCLR5048 92%30.07NA
2903:55Calm10.00FairCLR5149 93%30.06NA
2903:35Calm10.00FairCLR5149 91%30.05NA
2903:15Calm10.00FairCLR5048 93%30.05NA
2902:55Calm10.00FairCLR5048 93%30.03NA
2902:35Calm10.00FairCLR5148 91%30.03NA
2902:15Calm10.00FairCLR5148 91%30.04NA
2901:55Calm10.00FairCLR5149 92%30.03NA
2901:35Calm10.00FairCLR5148 91%30.03NA
2901:15Calm10.00FairCLR5149 92%30.03NA
2900:55Calm10.00FairCLR5149 665194%30.03NA
2900:35Calm10.00FairCLR5149 92%30.03NA
2900:15Calm10.00FairCLR5249 91%30.02NA
2823:55Calm10.00FairCLR5349 88%30.02NA
2823:35Calm10.00FairCLR5349 88%30.03NA
2823:15Calm10.00FairCLR5249 90%30.02NA
2821:45Calm10.00ClearSKC5948 68%30.01NA
2819:45NW 6 G 1710.00ClearSKC6348 60%29.97NA
2807:35Calm10.00FairCLR5654 93%29.80NA
2807:15Calm10.00FairCLR5453 97%29.79NA
2806:55Calm10.00FairCLR5252 635097%29.79NA
2806:35Calm10.00FairCLR5251 98%29.78NA
2806:15Calm7.00FairCLR5050 98%29.78NA
2805:55Calm10.00FairCLR5251 97%29.77NA
2805:35Calm10.00FairCLR5150 97%29.76NA
2805:15Calm10.00FairCLR5251 95%29.76NA
2804:55Calm10.00FairCLR5251 96%29.76NA
2804:35SW 510.00FairCLR5351 94%29.76NA
2804:15W 510.00FairCLR5150 94%29.75NA
2803:55W 510.00FairCLR5250 95%29.75NA
2803:35Calm10.00FairCLR5553 93%29.73NA
2803:15Calm10.00FairCLR5451 91%29.73NA
2802:55Calm10.00FairCLR5753 86%29.73NA
2802:35Calm10.00FairCLR5753 87%29.73NA
2802:15NW 610.00FairCLR5954 82%29.73NA
2801:55NW 710.00FairCLR6155 80%29.73NA
2801:35W 12 G 1710.00FairCLR6155 79%29.72NA
2801:15W 1410.00FairCLR6355 76%29.71NA
2800:55W 910.00FairCLR6256 716182%29.70NA
2800:35W 1310.00FairCLR6159 91%29.68NA
2800:15Calm10.00Partly CloudySCT1006260 94%29.67NA
2723:55Calm10.00 Light RainSCT070 BKN1006361 93%29.66NA
2723:35Calm10.00Mostly CloudySCT060 BKN070 BKN0906561 87%29.66NA
2723:15Calm10.00Mostly CloudySCT060 SCT080 BKN0906662 86%29.66NA
2718:48SE 910.00Partly CloudySCT0457263 73%29.60NA
2717:47S 910.00Partly CloudySCT0457361 65%29.62NA
2716:45SE 910.00Mostly CloudySCT035 SCT043 BKN0507263 73%29.63NA
2715:50E 910.00OvercastSCT021 OVC0807263 73%29.65NA
2714:50E 810.00Partly CloudySCT0147264 78%29.67NA
2713:50E 610.00OvercastOVC0126863 83%29.68NA
D
a
t
e
Time
(cdt)
Wind
(mph)
Vis.
(mi.)
WeatherSky Cond. AirDwptMax.Min.Relative
Humidity
altimeter
(in.)
sea level
(mb)
1 hr3 hr6 hr
6 hour
Temperature (ºF)PressurePrecipitation (in.)

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Last Modified: June 14, 2005
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