692  
UXUS97 KSLC 111259  
SRGSLC  
 
SOARING FORECAST  
NATIONAL WEATHER SERVICE SALT LAKE CITY, UTAH  
0659 MDT SUNDAY, APRIL 11, 2021  
 
THIS FORECAST IS FOR SUNDAY, APRIL 11, 2021:  
 
IF THE TRIGGER TEMPERATURE OF 53.4 F/11.9 C IS REACHED...THEN  
THERMAL SOARING INDEX....................... FAIR  
MAXIMUM RATE OF LIFT........................ 317 FT/MIN (1.6 M/S)  
MAXIMUM HEIGHT OF THERMALS.................. 8895 FT MSL (4669 FT AGL)  
 
FORECAST MAXIMUM TEMPERATURE................... 54.0 F/12.7 C  
TIME OF TRIGGER TEMPERATURE.................... 1445 MDT  
TIME OF OVERDEVELOPMENT........................ NONE  
MIDDLE/HIGH CLOUDS DURING SOARING WINDOW....... NONE  
SURFACE WINDS DURING SOARING WINDOW............ 20 MPH OR LESS  
HEIGHT OF THE -3 THERMAL INDEX................. 6188 FT MSL (1962 FT AGL)  
THERMAL SOARING OUTLOOK FOR MONDAY 04/12....... GOOD  
 
WAVE SOARING INDEX............................. NOT AVAILABLE  
 
REMARKS...  
 
SUNRISE/SUNSET.................... 06:54:17 / 20:03:10 MDT  
TOTAL POSSIBLE SUNSHINE........... 13 HR 8 MIN 53 SEC (788 MIN 53 SEC)  
ALTITUDE OF SUN AT 13:28:43 MDT... 57.19 DEGREES  
 
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 04/11/2021 AT 0600 MDT  
 
FREEZING LEVEL.................. 8171 FT MSL (3945 FT AGL)  
CONVECTIVE CONDENSATION LEVEL... 17249 FT MSL (13023 FT AGL)  
LIFTED CONDENSATION LEVEL....... 13298 FT MSL (9072 FT AGL)  
LIFTED INDEX.................... +10.3  
K INDEX......................... -9.3  
 
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 5.3 41.5 355 19 10 5.1 2.8 8.0 46.4 -4.6 M M  
6000 3.7 38.7 350 28 15 5.7 3.2 9.2 48.6 -3.3 64 0.3  
7000 2.2 36.0 345 26 13 2.2 1.2 10.6 51.1 -1.9 139 0.7  
8000 0.6 33.1 325 19 10 8.0 4.4 12.0 53.7 -0.5 214 1.1  
9000 -1.8 28.8 305 15 8 8.2 4.5 12.5 54.6 0.0 M M  
10000 -4.1 24.6 295 19 10 3.3 1.8 13.2 55.7 0.6 M M  
12000 -6.1 21.0 290 33 17 7.3 4.0 18.0 64.4 5.1 M M  
14000 -10.1 13.8 285 45 23 3.8 2.1 19.9 67.9 6.8 M M  
16000 -13.4 7.9 270 36 19 8.5 4.7 22.6 72.8 9.1 M M  
18000 -18.5 -1.3 275 37 19 8.5 4.6 23.5 74.2 9.6 M M  
20000 -23.0 -9.4 280 40 21 4.5 2.5 25.1 77.3 10.8 M M  
22000 -25.6 -14.1 285 50 26 6.1 3.4 29.1 84.3 13.7 M M  
24000 -29.4 -20.9 285 60 31 7.4 4.1 31.5 88.8 15.4 M M  
26000 -34.1 -29.4 290 65 33 5.2 2.9 33.9 93.1 16.9 M M  
 
* * * * * * NUMERICAL WEATHER PREDICTION MODEL FORECAST DATA VALID * * * * * *  
 
04/11/2021 AT 0900 MDT | 04/11/2021 AT 1200 MDT  
|  
CAPE... 0.0 LI... +9.0 | CAPE... 0.0 LI... +10.7  
CINH... 0.0 K INDEX... -11.8 | CINH... 0.0 K INDEX... -21.8  
|  
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 1.5 34.7 310 9 5 7.9 4.3 | 4.3 39.7 280 10 5 5.4 2.9  
6000 -2.5 27.5 310 9 5 8.6 4.7 | -1.0 30.2 275 10 5 10.7 5.9  
7000 -4.6 23.7 305 9 5 3.2 1.8 | -3.8 25.2 290 10 5 7.9 4.3  
8000 -5.2 22.6 300 9 5 1.9 1.1 | -5.6 21.9 320 10 5 5.2 2.9  
9000 -4.9 23.2 295 10 5 -0.9 -0.5 | -6.2 20.8 315 10 5 0.5 0.3  
10000 -5.3 22.5 295 15 8 2.1 1.1 | -5.7 21.7 305 10 5 -1.5 -0.8  
12000 -6.3 20.7 295 19 10 2.8 1.5 | -5.9 21.4 305 14 7 4.7 2.6  
14000 -9.6 14.7 295 20 10 7.5 4.1 | -9.9 14.2 305 16 8 7.4 4.1  
16000 -13.9 7.0 295 20 10 6.0 3.3 | -13.8 7.2 300 17 9 5.1 2.8  
18000 -17.2 1.0 295 21 11 6.3 3.5 | -16.7 1.9 295 20 10 5.6 3.1  
20000 -20.6 -5.1 290 24 12 5.5 3.0 | -20.7 -5.3 290 22 11 6.9 3.8  
22000 -24.2 -11.6 290 27 14 6.6 3.6 | -24.4 -11.9 290 25 13 5.5 3.0  
24000 -28.7 -19.7 290 29 15 6.8 3.7 | -27.8 -18.0 285 28 15 7.1 3.9  
26000 -32.7 -26.9 290 31 16 6.7 3.7 | -32.7 -26.9 285 31 16 7.3 4.0  
 
04/11/2021 AT 1500 MDT | 04/11/2021 AT 1800 MDT  
|  
CAPE... 0.0 LI... +10.2 | CAPE... 0.0 LI... +9.0  
CINH... 0.0 K INDEX... -24.8 | CINH... 0.0 K INDEX... -29.9  
|  
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 6.3 43.3 285 10 5 9.5 5.2 | 5.8 42.4 310 9 5 6.8 3.7  
6000 0.8 33.4 280 10 5 10.3 5.6 | 1.5 34.7 305 9 5 9.7 5.3  
7000 -1.9 28.6 280 10 5 8.6 4.7 | -0.6 30.9 300 9 5 5.9 3.3  
8000 -3.5 25.7 265 10 5 3.7 2.0 | -1.9 28.6 285 9 5 5.4 3.0  
9000 -4.6 23.7 295 10 5 3.5 1.9 | -3.3 26.1 295 9 5 4.8 2.6  
10000 -5.2 22.6 305 10 5 0.3 0.2 | -4.3 24.3 305 9 5 1.8 1.0  
12000 -5.9 21.4 305 11 6 4.3 2.3 | -6.0 21.2 290 11 6 5.1 2.8  
14000 -9.9 14.2 300 14 7 6.9 3.8 | -10.2 13.6 290 14 7 5.5 3.0  
16000 -13.1 8.4 295 17 9 4.6 2.5 | -13.1 8.4 295 18 9 5.4 3.0  
18000 -16.7 1.9 290 19 10 7.5 4.1 | -17.3 0.9 295 20 10 8.0 4.4  
20000 -20.9 -5.6 285 22 11 6.9 3.8 | -21.0 -5.8 295 23 12 5.8 3.2  
22000 -24.5 -12.1 285 25 13 5.1 2.8 | -24.5 -12.1 290 26 13 5.8 3.2  
24000 -27.7 -17.9 285 29 15 7.4 4.1 | -28.1 -18.6 290 30 15 7.6 4.2  
26000 -32.4 -26.3 285 31 16 7.8 4.3 | -32.8 -27.0 285 31 16 7.8 4.3  
 
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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