090  
UXUS97 KSLC 181225  
SRGSLC  
 
SOARING FORECAST  
NATIONAL WEATHER SERVICE SALT LAKE CITY, UTAH  
0625 MDT FRIDAY, SEPTEMBER 18, 2020  
 
THIS FORECAST IS FOR FRIDAY, SEPTEMBER 18, 2020:  
 
IF THE TRIGGER TEMPERATURE OF 89.7 F/32.0 C IS REACHED...THEN  
THERMAL SOARING INDEX....................... FAIR  
MAXIMUM RATE OF LIFT........................ 324 FT/MIN (1.6 M/S)  
MAXIMUM HEIGHT OF THERMALS.................. 8914 FT MSL (4688 FT AGL)  
 
FORECAST MAXIMUM TEMPERATURE................... 90.0 F/32.7 C  
TIME OF TRIGGER TEMPERATURE.................... 1500 MDT  
TIME OF OVERDEVELOPMENT........................ 1800 MDT  
MIDDLE/HIGH CLOUDS DURING SOARING WINDOW....... NONE  
SURFACE WINDS DURING SOARING WINDOW............ 20 MPH OR LESS  
HEIGHT OF THE -3 THERMAL INDEX................. 5719 FT MSL (1493 FT AGL)  
THERMAL SOARING OUTLOOK FOR SATURDAY 09/19..... GOOD  
 
WAVE SOARING INDEX............................. NOT AVAILABLE  
 
REMARKS...  
 
SUNRISE/SUNSET.................... 07:12:13 / 19:31:14 MDT  
TOTAL POSSIBLE SUNSHINE........... 12 HR 19 MIN 2 SEC (739 MIN 2 SEC)  
ALTITUDE OF SUN AT 13:21:43 MDT... 50.40 DEGREES  
 
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 09/18/2020 AT 0600 MDT  
 
FREEZING LEVEL.................. 15261 FT MSL (11035 FT AGL)  
CONVECTIVE CONDENSATION LEVEL... 22688 FT MSL (18462 FT AGL)  
LIFTED CONDENSATION LEVEL....... 19709 FT MSL (15483 FT AGL)  
LIFTED INDEX.................... +4.9  
K INDEX......................... +3.7  
 
HEIGHT TEMPERATURE WIND WIND SPD LAPSE RATE CONVECTIONT THERMAL LIFT RATE  
FT MSL DEG C DEG F DIR KT M/S C/KM F/KFT DEG C DEG F INDEX FPM M/S  
--------------------------------------------------------------------------------  
5000 24.4 75.9 155 16 8 1.4 0.8 27.1 80.8 -5.6 20 0.1  
6000 24.8 76.6 170 28 15 5.2 2.8 30.4 86.7 -2.3 39 0.2  
7000 22.4 72.3 180 25 13 4.8 2.6 30.9 87.7 -1.7 139 0.7  
8000 20.9 69.6 185 25 13 8.0 4.4 32.4 90.4 -0.2 212 1.1  
9000 18.2 64.8 180 22 11 9.1 5.0 32.6 90.8 -0.0 323 1.6  
10000 15.5 59.9 195 18 9 9.1 5.0 32.8 91.1 0.2 M M  
12000 9.2 48.6 225 14 7 9.5 5.2 33.1 91.6 0.5 M M  
14000 3.5 38.3 235 14 7 9.7 5.3 33.2 91.8 0.6 M M  
16000 -2.3 27.9 230 12 6 9.7 5.3 33.3 92.0 0.7 M M  
18000 -8.0 17.6 215 11 6 8.9 4.9 33.4 92.1 0.7 M M  
20000 -12.8 9.0 240 16 8 5.4 3.0 34.5 94.1 1.8 M M  
22000 -14.3 6.3 245 15 8 3.6 2.0 39.5 103.2 6.0 M M  
24000 -18.1 -0.6 225 24 12 8.6 4.7 42.2 108.0 8.0 M M  
26000 -22.2 -8.0 230 25 13 8.1 4.4 44.4 112.0 9.5 M M  
 
* * * * * * NUMERICAL WEATHER PREDICTION MODEL FORECAST DATA VALID * * * * * *  
 
09/18/2020 AT 0900 MDT | 09/18/2020 AT 1200 MDT  
|  
CAPE... 0.0 LI... +0.6 | CAPE... 0.0 LI... +0.5  
CINH... 0.0 K INDEX... +10.1 | CINH... -0.1 K INDEX... +11.4  
|  
HEIGHT TEMPERATURE WND WNDSPD LAPSE RATE | TEMPERATURE WND WNDSPD LAPSE RATE  
FT MSL DEG C DEG F DIR KT M/S C/KM F/KFT | DEG C DEG F DIR KT M/S C/KM F/KFT  
--------------------------------------------------------------------------------  
5000 20.7 69.3 135 4 2 -41.9 -23.0 | 28.9 84.0 210 5 3 67.2 36.9  
6000 22.4 72.3 170 8 4 -1.1 -0.6 | 24.4 75.9 205 6 3 9.5 5.2  
7000 21.8 71.2 195 9 4 6.8 3.7 | 21.8 71.2 205 7 4 8.1 4.5  
8000 19.8 67.6 210 9 4 8.3 4.6 | 19.4 66.9 210 7 4 8.4 4.6  
9000 17.2 63.0 215 8 4 8.4 4.6 | 16.8 62.2 210 8 4 8.9 4.9  
10000 14.6 58.3 220 8 4 9.2 5.0 | 14.1 57.4 215 9 5 9.1 5.0  
12000 8.6 47.5 215 8 4 9.1 5.0 | 8.0 46.4 210 11 5 9.3 5.1  
14000 3.0 37.4 215 9 5 9.7 5.3 | 2.4 36.3 210 12 6 9.1 5.0  
16000 -2.6 27.3 210 9 5 9.7 5.3 | -3.1 26.4 210 13 7 9.6 5.2  
18000 -8.5 16.7 215 10 5 9.5 5.2 | -8.9 16.0 205 15 8 9.4 5.1  
20000 -12.8 9.0 215 10 5 4.6 2.5 | -13.3 8.1 205 15 8 4.3 2.4  
22000 -15.5 4.1 215 9 5 5.4 2.9 | -15.9 3.4 200 14 7 4.6 2.5  
24000 -19.1 -2.4 225 12 6 6.1 3.3 | -18.7 -1.7 220 14 7 4.8 2.6  
26000 -23.6 -10.5 235 14 7 7.3 4.0 | -22.5 -8.5 230 15 8 7.7 4.2  
 
09/18/2020 AT 1500 MDT | 09/18/2020 AT 1800 MDT  
|  
CAPE... +0.3 LI... +0.9 | CAPE... 0.0 LI... +2.1  
CINH... -0.1 K INDEX... +20.4 | CINH... 0.0 K INDEX... +19.9  
|  
HEIGHT TEMPERATURE WND WNDSPD LAPSE RATE | TEMPERATURE WND WNDSPD LAPSE RATE  
FT MSL DEG C DEG F DIR KT M/S C/KM F/KFT | DEG C DEG F DIR KT M/S C/KM F/KFT  
--------------------------------------------------------------------------------  
5000 M M M M M M M | M M M M M M M  
6000 23.1 73.6 290 5 3 5.8 3.2 | 23.9 75.0 180 4 2 7.7 4.2  
7000 20.9 69.6 270 7 3 7.9 4.3 | 21.3 70.3 200 7 3 8.7 4.8  
8000 18.3 64.9 255 7 4 9.2 5.1 | 18.6 65.5 200 9 4 9.2 5.0  
9000 15.5 59.9 245 7 4 9.8 5.4 | 15.8 60.4 205 10 5 9.0 4.9  
10000 12.7 54.9 230 8 4 9.5 5.2 | 12.7 54.9 205 11 6 9.1 5.0  
12000 6.8 44.2 215 9 4 10.0 5.5 | 6.6 43.9 205 15 8 9.7 5.3  
14000 0.3 32.5 200 12 6 9.7 5.3 | 0.9 33.6 210 18 9 9.8 5.4  
16000 -4.9 23.2 195 17 9 7.6 4.2 | -4.4 24.1 210 18 9 7.4 4.1  
18000 -8.9 16.0 200 20 11 6.7 3.7 | -8.2 17.2 225 13 7 5.6 3.1  
20000 -12.4 9.7 205 21 11 4.6 2.5 | -11.5 11.3 235 14 7 6.1 3.4  
22000 -15.2 4.6 215 20 11 5.1 2.8 | -15.1 4.8 240 15 8 6.2 3.4  
24000 -18.2 -0.8 235 19 10 5.2 2.9 | -18.7 -1.7 235 18 9 6.2 3.4  
26000 -22.1 -7.8 240 18 9 7.6 4.2 | -23.3 -9.9 230 18 9 7.4 4.1  
 
THIS PRODUCT IS ISSUED ONCE PER DAY BY APPROXIMATELY 0600 MST/0700 MDT  
(1300 UTC). THIS PRODUCT IS NOT CONTINUOUSLY MONITORED NOR UPDATED AFTER  
THE INITIAL ISSUANCE.  
 
THE INFORMATION CONTAINED HEREIN IS BASED ON THE 1200 UTC RAWINSONDE OBSERVATION  
AT THE SALT LAKE CITY, UTAH INTERNATIONAL AIRPORT AND/OR NUMERICAL WEATHER  
PREDICTION MODEL DATA REPRESENTATIVE OF THE AIRPORT. THESE DATA MAY NOT BE  
REPRESENTATIVE OF OTHER AREAS ALONG THE WASATCH FRONT. ERRONEOUS DATA SUCH AS  
THESE SHOULD NOT BE USED.  
 
THE CONTENT AND FORMAT OF THIS REPORT AS WELL AS THE ISSUANCE TIMES ARE SUBJECT  
TO CHANGE WITHOUT PRIOR NOTICE. COMMENTS AND SUGGESTIONS ARE WELCOME AND SHOULD  
BE DIRECTED TO THE FOLLOWING ADDRESS:  
 
022015  
 
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