Soaring Forecast - NWS Twin Cities

Soaring Forecast for the Twin Cities Area              
              Prepared at 12:30 GMT Thu Apr 22 2021                              
                                                                   
Height          Wind          Wind           Temp           Soaring
(ft AGL)        Direction     Speed(kts)     (Deg C)        Index  
3000            300           27              3             -4.0
5000            310           26             -3             -3.5
7000            320           19             -8             -3.0
 
Temperature needed for lift to 3000 ft agl (Trigger Temp)..55 
 
Time at which trigger temperature will be reached..........1 pm
 
Maximum Temperature for the day............................62 Deg F
 
Maximum altitude of thermals...............................10700 (ft agl)
 
Height where cumulus will form.............................5500 (ft agl)
 
Base of cumulus during the afternoon.......................7200 (ft agl)
 
Total Sky Cover in Eighths (Oktas) (11 AM to 4 PM).........0
 
Implications of specific soaring indices:
-4 or Less............Excellent
-3....................Good
-2 or -1..............Fair
Zero or Greater.......Poor
 
Forecast is based on Upper Air Data collected
at Chanhassen, Minnesota. Elevation 943 feet.
 
 
 
To: Princeton FSS, FAX, (763) 389-7143  Voice, (800) 642-6505
From: National Weather Service Chanhassen, Voice (952) 361-6671