Soaring Forecast - NWS Twin Cities

Soaring Forecast for the Twin Cities Area              
              Prepared at 12:30 GMT Thu Apr 09 2020                              
                                                                   
Height          Wind          Wind           Temp           Soaring
(ft AGL)        Direction     Speed(kts)     (Deg C)        Index  
3000            305           30             -7             -3.5
5000            310           36            -12             -3.0
7000            305           51            -16             -1.5
 
Temperature needed for lift to 3000 ft agl (Trigger Temp)..38 
 
Time at which trigger temperature will be reached..........11 am
 
Maximum Temperature for the day............................43 Deg F
 
Maximum altitude of thermals...............................9000 (ft agl)
 
Height where cumulus will form.............................2400 (ft agl)
 
Base of cumulus during the afternoon.......................3600 (ft agl)
 
Total Sky Cover in Eighths (Oktas) (11 AM to 4 PM).........7
 
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