National Weather Service United States Department of Commerce

Severe Thunderstorms With Heavy Rain over the Mid-Atlantic; Excessive Heat For Central/Southern U.S. to Mid-Atlantic

Severe thunderstorms are possible Sunday across the Mid-Atlantic region. Damaging winds, large hail, and flooding will be the primary threats with these storms. Meanwhile, dangerous heat will continue through Sunday across the central and southern U.S. into the Mid-Atlantic. Read More >

Soaring Forecast for the Twin Cities Area              
              Prepared at 13:28 GMT Fri Jul 21 2017                              
                                                                   
Height          Wind          Wind           Temp           Soaring
(ft AGL)        Direction     Speed(kts)     (Deg C)        Index  
3000            145           20             23              2.5
5000            165           14             19              5.0
7000            255           12             13              6.0
 
Temperature needed for lift to 3000 ft agl (Trigger Temp)..90 
 
Time at which trigger temperature will be reached..........Will Not Reach  
 
Maximum Temperature for the day............................86 Deg F
 
Maximum altitude of thermals...............................1800 (ft agl)
 
Height where cumulus will form.............................No Cu Expected (ft agl)
 
Base of cumulus during the afternoon.......................No Cu Expected (ft agl)
 
Total Sky Cover in Eighths (Oktas) (11 AM to 4 PM).........5
 
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