276  
FWUS45 KRIW 231945  
SAGRIW  
 
FORECAST FOR BRIDGER-TETON NATIONAL FOREST AVALANCHE CENTER  
NATIONAL WEATHER SERVICE RIVERTON WY  
145 PM MDT SUN APR 23 2017  
 
   
DISCUSSION
 
A SERIES OF PACIFIC LOW PRESSURE TROUGHS WILL BRING  
WIDESPREAD SHOWERS WITH A THREAT OF ISOLATED AFTERNOON AND EARLY  
EVENING THUNDERSTORMS TO THE WEST THROUGH THE WEEK WITH PERIODS OF  
HEAVY WET SNOW. SNOW LEVELS WILL HANG AROUND 7500 FEET DROPPING  
TO THE VALLEY FLOORS AT TIMES DURING THE LATE NIGHT HOURS.  
RELATIVELY STRONG AND GUSTY WINDS ARE EXPECTED AT RIDGETOPS AND  
PASS LEVELS.  
 
FORECASTER...C.BAKER  
 
WYZ012-241115-  
RENDEZVOUS MOUNTAIN-TETON WY  
43.59N 110.89W ELEV. 10318 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 23 29 21 29 20  
TEMP 39 37 28 25 25 23 25 28 29 28 23 22 22 21 24 28 29 28 23 21 21 20  
DEWPT 20 23 25 23 23 22 23 24 24 24 22 21 21 20 22 24 24 24 22 20 20 19  
RH 46 56 88 92 92 96 92 85 81 85 96 96 96 96 92 85 81 85 96 96 96 96  
WIND DIR SW SW W W W W SW SW SW SW SW W W W NW NW W W W SW SW SW  
WIND SPD 18 19 24 24 25 21 18 19 17 13 14 23 23 21 16 16 19 16 20 18 19 19  
WIND GUST 25 27 34 34 35 31 26 26 24 21 33 33 31 23 23 27 28 25 27 26  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 99100100100 99100100100100100100100100100100100100100100100100100  
POP 12HR 70 90 100 90 80  
QPF 12HR 0.20 0.38 0.50 0.34 0.22  
SNOW 12HR 3 5 5 5 3  
RAIN SHWRS L  
SNOWSHWRS L L L L L O O O O O O O O O O O O O O O O O  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 28 19 25 16 27 17 31 19 32  
TEMP 27 27 20 19 24 24 17 16 26 25 19 17 30 29 21 19 31 30  
DEWPT 24 24 19 19 19 19 16 15 19 18 17 15 21 20 19 18 23 22  
PWIND DIR SW SW W W N NE NE N NW  
WIND CHAR BZ BZ BZ BZ GN BZ GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK SC SC SC SC BK  
POP 12HR 100 80 70 70 60 40 10 20 40  
SNOWSHWRS O O L L L L L L C C C S S C  
TSTMS S S  
 

 
 
WYZ013-241115-  
JACKSON AIRPORT-TETON WY  
43.60N 110.73W ELEV. 6451 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 32 43 31 44 29  
TEMP 52 51 41 36 34 32 36 41 43 42 37 33 32 31 36 41 44 43 36 32 31 29  
DEWPT 28 30 30 32 30 30 32 32 31 31 31 30 29 29 32 31 30 31 29 29 28 27  
RH 39 44 65 85 85 92 85 70 62 65 79 89 88 92 85 67 57 62 75 88 88 92  
WIND DIR SW S S S S S S S S S S S S S S NW W S S SW S S  
WIND SPD 12 11 11 11 11 10 13 17 14 11 11 14 11 8 3 10 9 11 11 9 8 8  
WIND GUST 24 21  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 91 97 96 89 90100100100100100100100100100100100100100100100100100  
POP 12HR 50 70 80 70 60  
QPF 12HR 0.03 0.14 0.24 0.18 0.09  
SNOW 12HR T T 3 1 1  
RAIN SHWRS C C C C C L L L L L L L L C C  
SNOWSHWRS C C C C C L L L L L C C C C C  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 42 29 40 26 42 25 46 25 47  
TEMP 39 41 31 29 38 39 29 26 39 41 28 25 42 45 29 25 43 46  
DEWPT 30 30 28 27 28 26 26 24 28 26 24 22 26 25 25 22 29 28  
PWIND DIR SW SW SW W NW NE NE NE NW  
WIND CHAR GN LT LT LT LT GN LT LT LT  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK SC SC SC BK  
POP 12HR 60 60 50 40 30 10 0 5 10  
RAIN SHWRS L C C S  
SNOWSHWRS C C C C C C  
TSTMS S S  
 

 
 
WYZ012-241115-  
SNOW KING MOUNTAIN-TETON WY  
43.46N 110.76W ELEV. 7810 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 30 36 29 37 28  
TEMP 44 40 33 33 31 30 32 35 36 34 31 30 30 29 31 35 37 35 30 30 29 28  
DEWPT 20 23 29 28 28 28 29 31 30 29 30 28 29 28 28 29 28 28 28 28 27 27  
RH 38 50 85 82 88 92 88 85 79 82 96 92 96 96 88 78 70 75 92 92 92 96  
WIND DIR SE SE SE SE SE SE S S S SE S S SW SW W W W E S SW SW SW  
WIND SPD 12 13 10 10 12 11 13 14 13 12 12 11 9 9 10 13 12 4 9 9 9 9  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 94100100 93 94100100100100100100100100100100100100100100100100100  
POP 12HR 50 80 80 80 70  
QPF 12HR 0.05 0.17 0.25 0.19 0.09  
SNOW 12HR T 1 2 2 1  
RAIN SHWRS C C L L O L L  
SNOWSHWRS C C C C L L L L O O O O L L L L L L C C L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 36 27 33 25 35 24 39 25 40  
TEMP 34 34 29 27 32 31 27 25 33 32 26 24 36 35 28 25 37 37  
DEWPT 29 29 27 26 26 24 25 24 25 23 23 22 25 23 24 23 27 26  
PWIND DIR SW SW SW W NW NE N N NW  
WIND CHAR GN GN GN LT LT GN LT LT LT  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK SC SC SC SC  
POP 12HR 80 60 60 50 40 20 5 10 20  
RAIN SHWRS L S  
SNOWSHWRS L L L L C C C C C C S  
TSTMS S S  
 

 
 
WYZ012-241115-  
FREDS MOUNTAIN-TETON WY  
43.79N 110.93W ELEV. 9840 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 25 32 23 32 22  
TEMP 40 39 29 27 26 25 26 31 32 31 25 24 24 23 24 31 32 31 24 23 23 22  
DEWPT 18 16 27 26 24 23 24 27 28 27 24 23 22 20 22 25 26 25 23 22 22 20  
RH 41 39 92 96 92 92 92 85 85 85 96 96 92 88 92 78 78 78 96 96 96 92  
WIND DIR SW SW SW SW SW SW SW SW SW SW SW SW W W W W W W SW SW SW SW  
WIND SPD 17 20 20 19 19 19 19 21 20 16 16 21 18 17 12 13 17 21 18 17 17 17  
WIND GUST 28 28 26 27 27 27 29 28 23 29 26 25 31 26 24 24 24  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 99100100100 99100100100100100100100100100100100100100100100100100  
POP 12HR 70 90 90 90 80  
QPF 12HR 0.13 0.37 0.50 0.32 0.20  
SNOW 12HR 1 5 5 4 3  
RAIN SHWRS C L  
SNOWSHWRS L L C L L L O O O O O O O O O O O O L L L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 31 21 28 19 30 20 34 21 35  
TEMP 30 30 22 21 27 27 20 19 28 29 21 20 32 33 23 21 33 34  
DEWPT 26 26 21 18 22 21 18 14 18 19 18 13 20 21 21 15 23 23  
PWIND DIR SW SW W W N NE NE NE NW  
WIND CHAR BZ GN GN GN GN BZ GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK SC SC SC SC BK  
POP 12HR 90 80 70 60 50 30 5 10 30  
SNOWSHWRS L O L L L L L L C C S S  
TSTMS S S  
 

 
 
WYZ024-241115-  
BLIND BULL SUMMIT-LINCOLN WY  
42.97N 110.62W ELEV. 9000 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 25 33 24 33 22  
TEMP 44 42 32 30 28 26 29 32 33 32 27 26 25 24 28 32 33 32 26 25 24 22  
DEWPT 33 20 30 29 26 25 27 30 31 28 26 25 23 23 26 30 30 26 25 24 22 21  
RH 65 41 92 96 92 96 92 92 92 85 96 96 92 96 92 92 89 78 96 96 92 96  
WIND DIR SW W W W W W W SW SW SW W W W W W W W W W W W SW  
WIND SPD 11 10 11 14 19 17 16 12 9 9 16 19 20 19 20 18 16 13 13 12 10 10  
WIND GUST 26 24 23 23 27 29 27 28 25 23  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 98100100 98100100100100100100100100100100100100100100100100100100  
POP 12HR 60 80 80 70 60  
QPF 12HR 0.10 0.31 0.24 0.15 0.06  
SNOW 12HR 1 2 3 2 1  
RAIN SHWRS C C O  
SNOWSHWRS C C C C L L O O O O O O L L L L L L C C L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 33 21 30 18 31 16 36 19 37  
TEMP 31 32 24 21 29 29 21 18 29 29 20 17 33 34 23 20 34 35  
DEWPT 29 26 23 20 26 22 20 17 26 21 18 16 29 22 21 19 30 24  
PWIND DIR W W W W NW N N NW W  
WIND CHAR GN GN GN GN GN GN GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK SC SC SC  
POP 12HR 80 60 60 50 50 40 20 10 20  
RAIN SHWRS S S  
SNOWSHWRS L L L C C C C C C C C S S S  
TSTMS S S  
 

 
 
WYZ024-241115-  
MOUNT COFFIN-LINCOLN WY  
42.64N 110.64W ELEV. 10870 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 22 29 20 27 18  
TEMP 41 36 29 26 25 24 24 28 29 27 23 22 21 21 22 26 27 25 21 20 19 19  
DEWPT 20 23 27 25 24 23 22 25 26 25 22 21 20 20 20 22 24 22 20 19 18 18  
RH 42 59 92 96 96 96 92 88 88 92 96 96 96 96 92 85 88 88 96 96 96 96  
WIND DIR SW W W W W W W W SW W W W W W W NW W W W W W W  
WIND SPD 17 17 16 17 18 18 16 12 17 18 20 24 25 24 26 24 21 17 16 19 19 19  
WIND GUST 24 24 23 24 26 25 23 25 26 28 33 35 34 36 33 31 24 23 27 27 26  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 94100100100100100100100100100100100100100100100100100100100100100  
POP 12HR 70 90 90 80 60  
QPF 12HR 0.10 0.35 0.25 0.16 0.07  
SNOW 12HR 1 5 3 2 1  
RAIN SHWRS C  
SNOWSHWRS C L L C C L L O O O O O O L L L L L L C C L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 28 18 23 14 24 15 29 18 31  
TEMP 26 25 20 19 22 21 16 15 22 22 17 16 27 26 20 19 29 28  
DEWPT 22 22 19 18 18 18 15 14 17 18 16 15 19 20 18 18 21 23  
PWIND DIR W W W W NW NE N NW NW  
WIND CHAR BZ BZ BZ BZ GN GN GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK SC SC SC  
POP 12HR 80 60 60 50 60 50 30 20 10  
SNOWSHWRS L O L C C C C C C C C C S C S  
TSTMS S S  
 

 
 
WYZ024-241115-  
COMMISSARY RIDGE-LINCOLN WY  
42.57N 110.73W ELEV. 9340 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 26 33 24 32 23  
TEMP 45 40 32 29 28 26 29 33 33 31 27 26 25 24 27 32 32 30 26 25 24 23  
DEWPT 21 24 27 26 25 23 25 27 27 27 25 24 23 23 23 25 25 24 23 23 22 21  
RH 38 52 81 88 88 88 85 78 78 85 92 92 92 96 85 75 75 78 88 92 92 92  
WIND DIR SW W W W W W W SW SW SW W W W W W NW W W W W W W  
WIND SPD 13 14 16 14 18 18 14 11 16 18 18 20 21 19 21 19 17 14 14 14 14 14  
WIND GUST 23 21 25 25 21 23 25 26 28 29 26 31 27 24 21 21  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 93100100100100100100100100100100100100100100100100100100100100100  
POP 12HR 60 90 90 80 60  
QPF 12HR 0.13 0.35 0.25 0.15 0.05  
SNOW 12HR 1 3 2 2 1  
RAIN SHWRS C L O O  
SNOWSHWRS L L C C L L O O O O O O L L L L L L C C L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 33 22 29 18 30 19 35 21 37  
TEMP 33 30 24 22 29 26 20 18 29 27 21 19 34 31 23 21 36 34  
DEWPT 26 25 21 19 20 19 17 15 20 20 18 16 21 22 19 17 23 25  
PWIND DIR W W W W NW NE N NW W  
WIND CHAR BZ GN BZ GN GN GN GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK SC SC SC  
POP 12HR 80 60 60 40 50 50 30 20 5  
SNOWSHWRS L L L C C C C C C C C S S S S  
TSTMS S S  
 

 
 
WYZ024-241115-  
SPRING CREEK DIVIDE SNOTEL-LINCOLN WY  
42.53N 110.66W ELEV. 9000 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 26 34 24 34 22  
TEMP 46 42 33 29 27 26 30 34 34 32 28 26 25 24 28 34 34 31 26 24 23 22  
DEWPT 22 25 28 27 24 24 26 28 29 28 26 25 24 23 24 26 27 25 24 23 22 21  
RH 38 50 82 92 88 92 85 78 82 85 92 96 96 96 85 72 75 78 92 96 96 96  
WIND DIR W W W NW W W W SW SW W W W W W W NW W W W W W W  
WIND SPD 13 16 16 13 18 17 14 11 14 19 19 21 23 21 24 21 19 16 14 16 14 14  
WIND GUST 23 25 25 27 26 31 32 29 34 31 26 23 24 23 21  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 89100100100100100100100100100100100100100100100100100100 95 95100  
POP 12HR 60 80 80 70 50  
QPF 12HR 0.09 0.31 0.20 0.12 0.04  
SNOW 12HR 1 3 2 2 1  
RAIN SHWRS C C L O  
SNOWSHWRS C C C C L L O O O O O O L L L L C C C C L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 34 22 30 18 31 18 36 21 38  
TEMP 34 31 24 22 30 27 20 18 31 28 20 18 36 32 23 21 38 34  
DEWPT 27 26 23 21 20 20 18 16 22 21 19 16 22 23 20 18 25 25  
PWIND DIR W W W W NW NE N NW NW  
WIND CHAR BZ GN GN GN GN GN GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK SC SC SC  
POP 12HR 80 60 50 40 60 50 30 20 5  
RAIN SHWRS L S  
SNOWSHWRS L L C C C C C C C C C C S S S  
TSTMS S S  
 

 
 
WYZ015-241115-  
LAVA MOUNTAIN-FREMONT WY  
43.66N 110.02W ELEV. 10430 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 22 29 20 28 18  
TEMP 39 39 31 27 24 22 25 28 29 29 25 22 21 20 23 26 28 28 23 21 19 18  
DEWPT 16 17 23 24 23 21 22 24 24 24 23 21 20 19 20 21 22 23 21 20 18 17  
RH 39 40 72 88 96 96 88 85 81 81 92 96 96 96 88 81 78 81 92 96 96 96  
WIND DIR SW SW SW W W W W W SW SW W W W W NW NW NW NW SW W W W  
WIND SPD 14 14 17 21 21 20 21 20 18 13 14 18 19 18 16 19 17 12 9 13 18 16  
WIND GUST 24 29 31 28 29 28 26 25 27 25 26 24 25 23  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 99100100100100100100100100100100100100100100100100100100100100100  
POP 12HR 70 80 90 90 90  
QPF 12HR 0.15 0.19 0.28 0.26 0.19  
SNOW 12HR 2 2 3 3 3  
RAIN SHWRS C  
SNOWSHWRS C L L L L L L O O O O O O O O O O O O L L L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 28 19 25 16 25 15 30 15 31  
TEMP 26 28 21 19 24 25 18 16 23 25 18 15 27 30 19 15 28 31  
DEWPT 22 23 20 18 19 19 16 14 16 16 16 13 17 18 17 13 19 20  
PWIND DIR W W W W N NE N N NW  
WIND CHAR BZ GN GN GN GN GN GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK SC SC SC  
POP 12HR 90 70 70 60 50 40 20 20 30  
SNOWSHWRS L O L L L L L L C C C S S S S S  
TSTMS S S  
 

 
 
WYZ015-241115-  
TOGWOTEE MOUNTAIN LODGE-TETON WY  
43.83N 110.19W ELEV. 8710 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 26 34 25 35 21  
TEMP 43 42 33 29 28 26 29 33 34 33 29 27 26 25 29 33 35 34 27 24 23 21  
DEWPT 22 24 26 26 25 24 26 27 27 27 27 26 25 24 26 26 26 26 24 23 21 20  
RH 43 48 75 88 88 92 88 78 75 78 92 96 96 96 88 75 69 72 88 96 92 96  
WIND DIR S S SW SW SW SW W SW SW SW SW SW W W W W NW NE W SW SW SW  
WIND SPD 12 12 14 13 11 11 13 14 13 9 11 14 14 10 10 13 11 6 4 6 10 8  
WIND GUST 21 21  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 99100100100100100100100100100100100100100100100100100100100100100  
POP 12HR 60 70 80 80 80  
QPF 12HR 0.07 0.14 0.25 0.20 0.14  
SNOW 12HR 1 1 3 3 2  
RAIN SHWRS C C L L  
SNOWSHWRS C C C C L L L L L L O O L L L L L L L L L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 34 23 32 20 31 18 36 18 37  
TEMP 32 33 25 23 31 31 22 20 29 30 21 18 33 35 22 18 34 36  
DEWPT 26 26 23 22 24 24 20 18 20 20 19 16 21 22 20 16 24 25  
PWIND DIR SW SW SW W N NE NE N NW  
WIND CHAR GN LT LT LT LT LT LT LT LT  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK SC SC BK  
POP 12HR 70 60 60 50 40 20 5 10 20  
RAIN SHWRS S  
SNOWSHWRS L L L L C C C C C C S S  
TSTMS S S  
 

 
 
WYZ015-241115-  
BROOKS LAKE LODGE-FREMONT WY  
43.73N 110.01W ELEV. 9340 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 24 34 23 34 19  
TEMP 42 42 33 29 26 24 29 33 34 34 28 26 24 23 28 33 34 34 26 23 21 19  
DEWPT 20 20 26 27 24 23 24 26 25 26 25 25 23 22 23 24 23 24 22 22 20 18  
RH 41 41 75 92 92 96 81 75 69 72 88 96 96 96 81 69 64 66 85 96 96 96  
WIND DIR SW SW W W W W W W SW SW W W W W NW NW NW NW S W W W  
WIND SPD 12 12 13 20 19 19 18 19 17 12 12 17 19 17 14 18 17 13 5 9 13 11  
WIND GUST 28 27 27 26 27 24 24 26 24 21 25 24  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 99100100100100100100100100100100100100100100100100100100100100100  
POP 12HR 60 80 80 80 90  
QPF 12HR 0.10 0.15 0.23 0.22 0.16  
SNOW 12HR 1 1 3 3 2  
RAIN SHWRS C C L  
SNOWSHWRS C L C C L L L L O O O O L L L L O O L L L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 33 22 31 18 31 17 35 17 37  
TEMP 31 33 25 22 30 31 21 18 29 31 21 17 33 35 22 17 34 37  
DEWPT 23 23 23 21 20 20 19 17 17 17 19 15 18 18 20 15 21 21  
PWIND DIR W W W W N NE NE N NW  
WIND CHAR GN LT LT LT LT GN LT LT LT  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK SC SC SC  
POP 12HR 80 60 60 50 40 30 10 10 20  
RAIN SHWRS S  
SNOWSHWRS L L L L L C C C C C S S S  
TSTMS S S  
 

 
 
IDZ019-241115-  
PINE CREEK PASS SNOTEL-TETON ID  
43.57N 111.21W ELEV. 6720 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 34 44 33 43 32  
TEMP 52 48 44 42 39 38 39 40 41 40 37 37 36 36 35 38 39 39 36 36 35 35  
DEWPT 34 35 36 35 32 32 32 31 34 37 36 35 35 35 33 29 30 31 33 34 33 33  
RH 50 60 73 76 76 79 76 70 76 89 96 92 96 96 92 70 70 73 89 92 92 92  
WIND DIR SW S S S S S S SW SW SW SW SW SW SW SW W W SW SW S S S  
WIND SPD 11 11 9 10 10 10 10 9 9 10 9 9 10 8 8 8 8 8 8 6 6 8  
CLOUDS OV BK BK BK BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK BK OV  
CLOUDS(%) 81 76 76 75 75 84 84 99 99 98 98 93 93 92 92 86 86 83 83 73 73 92  
POP 12HR 50 80 90 70 50  
QPF 12HR 0.04 0.25 0.23 0.21 0.09  
SNOW 12HR 00-00 T 1 1 1  
RAIN SHWRS C C C C C C C D D D D D D L L C C  
SNOWSHWRS C C C C D D D D D D L L L L C C C C L  
TSTMS S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 41 30 39 27 39 28 45 29 47  
TEMP 38 35 34 32 35 34 32 29 36 39 33 30 40 44 36 32 43 44  
DEWPT 30 32 31 30 27 29 31 27 25 24 27 28 26 25 29 29 27 MM  
PWIND DIR SW SW SW W NW N NE SW SW  
WIND CHAR GN GN GN LT GN GN GN LT GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV BK BK BK BK BK BK BK BK  
POP 12HR 80 70 70 50 50 50 30 20 30  
SNOWSHWRS L D L L L L C C C C C C C C S S C C  
TSTMS S S  
 

 
 
IDZ023-241115-  
SHEEP MOUNTAIN SNOTEL - BINGHAM ID  
43.21N 111.69W ELEV. 6570 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 36 44 34 45 32  
TEMP 54 52 46 44 41 39 39 40 39 38 37 37 36 36 36 40 41 39 36 35 34 33  
DEWPT 34 35 35 35 34 32 33 31 33 35 35 34 34 34 34 31 30 29 31 32 32 31  
RH 46 52 65 70 76 76 79 70 79 89 92 89 92 92 92 70 65 67 82 89 92 92  
WIND DIR SW SW SW SW SW SW SW SW SW SW SW SW SW W W W W SW SW SW SW SW  
WIND SPD 12 13 13 17 18 14 12 10 10 16 17 16 17 14 14 13 13 13 13 13 13 13  
WIND GUST 20 21 21 25 26 23 20 24 25 24 25 23 23 21 21 21 21 21 21 21  
CLOUDS BK BK BK BK BK OV OV OV OV OV OV OV OV OV OV OV OV BK BK BK BK OV  
CLOUDS(%) 79 72 72 70 70 84 84 99 99 97 97 89 89 92 92 85 85 70 70 61 61 90  
POP 12HR 30 90 80 60 50  
QPF 12HR 0.05 0.28 0.14 0.17 0.06  
SNOW 12HR 00-00 1 1 1 1  
RAIN SHWRS C C C S S D D D D L L  
SNOWSHWRS S S L L D D D D L L L L L L C C C C L  
TSTMS S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 43 31 41 28 39 29 47 30 50  
TEMP 38 37 35 33 34 34 31 30 35 38 35 33 42 45 35 33 45 48  
DEWPT 29 31 32 31 24 28 29 28 24 25 26 31 27 24 29 29 29 MM  
PWIND DIR SW SW SW W NW N N W SW  
WIND CHAR GN BZ BZ GN GN GN GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV SC SC SC SC SC SC  
POP 12HR 70 60 70 50 60 50 30 20 20  
SNOWSHWRS L L L L L L C C L L C C C C S S S S  
TSTMS S S  
 

 
 
WYZ001-241115-  
SYLVAN PASS - PARK WY  
44.47N 110.16W ELEV. 8420 FT  
145 PM MDT SUN APR 23 2017  
 
DATE 04/23/17 MON 04/24/17 TUE 04/25/17 WED  
MDT 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 25 32 24 32 21  
TEMP 43 37 30 27 27 25 27 31 32 29 26 25 25 24 26 31 32 28 24 22 22 21  
DEWPT 24 23 25 25 25 24 25 26 27 25 24 24 24 23 23 24 25 22 22 21 21 20  
RH 47 56 81 92 92 96 92 81 81 85 92 96 96 96 88 75 75 78 92 96 96 96  
WIND DIR SW SW SW SW SW SW SW SW SW SW SW SW W NW N NW W SW SW SW W SW  
WIND SPD 18 16 18 18 19 19 19 18 19 14 14 13 10 8 10 13 13 12 9 8 8 10  
WIND GUST 25 25 26 26 27 27 26 26  
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV  
CLOUDS(%) 99100100100100100100100100100100100100100100100100100100100100100  
POP 12HR 60 70 80 80 80  
QPF 12HR 0.19 0.18 0.31 0.22 0.17  
SNOW 12HR 3 2 3 3 2  
RAIN SHWRS C  
SNOWSHWRS C L L L L L L L L O O O O L L L L O O L L L  
TSTMS S S S S S  
 
DATE 04/26/17 THU 04/27/17 FRI 04/28/17 SAT 04/29/17 SUN 04/30/17  
MDT 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 31 22 29 19 28 17 33 18 34  
TEMP 30 28 23 22 28 26 20 19 27 24 18 17 32 28 20 18 33 30  
DEWPT 25 24 22 21 22 21 18 18 18 17 16 16 20 19 18 17 23 22  
PWIND DIR W W W NW N NE NE NW W  
WIND CHAR GN GN GN GN GN GN GN GN GN  
AVG CLOUDS OV OV OV OV OV OV OV OV OV OV OV BK BK SC BK SC SC BK  
POP 12HR 80 70 60 50 30 10 5 10 20  
SNOWSHWRS L L L L C C C C C S S  
TSTMS S S  
 

 
 
BELOW IS A WEATHER ELEMENT KEY FOR THIS PRODUCT  
 
DAY 1 THROUGH DAY 3...  
MAX/MIN TEMP OR MIN/MAX TEMP(F).....MAXIMUM/MINIMUM AIR TEMPERATURE  
TEMP(F).............................AIR TEMPERATURE  
DEWPT(F)............................DEW POINT TEMPERATURE  
RH(%)...............................RELATIVE HUMIDITY  
WIND DIR(8 POINT COMPASS)...........WIND DIRECTION  
WIND SPD(MPH).......................WIND SPEED  
CLOUDS(CAT).........................CLOUD COVER CATEGORY  
CL.....CLEAR/SUNNY.......................0% TO =< 10%  
FW.....MOSTLY CLEAR/MOSTLY SUNNY......> 10% TO =< 30%  
SC.....PARTLY CLOUDY/PARTLY SUNNY.....> 30% TO =< 60%  
BK.....MOSTLY CLOUDY..................> 60% TO =< 80%  
OV.....CLOUDY.........................> 80% TO =< 100%  
CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE  
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION  
QPF 12HR(IN.).......................AMOUNT OF LIQUID PRECIPITATION  
SNOW 12HR(MIN-MAX - IN.)............RANGE OF SNOWFALL  
WEATHER...  
TYPE...  
RAIN...........RAIN  
RAIN SHWRS.....RAIN SHOWERS  
SPRINKLES......SPRINKLES  
TSTMS..........THUNDERSTORMS  
DRIZZLE........DRIZZLE  
SNOW...........SNOW  
SNOWSHWRS......SNOW SHOWERS  
FLURRIES.......SNOW FLURRIES  
SLEET..........SLEET  
FRZG RAIN......FREEZING RAIN  
FRZG DRZL......FREEZING DRIZZLE  
COVERAGE...  
IS.............ISOLATED  
SC.............SCATTERED  
NM.............NUMEROUS  
O..............OCCASIONAL  
S..............SLIGHT CHANCE  
C..............CHANCE  
L..............LIKELY  
WD.............WIDESPREAD  
D..............DEFINITE  
AR.............AREAS  
PA.............PATCHY  
OBVIS...............................OBSTRUCTION TO VISIBILITY  
F.......FOG  
PF......PATCHY FOG  
F+......DENSE FOG  
PF+.....PATCHY DENSE FOG  
H.......HAZE  
BS......BLOWING SNOW  
K.......SMOKE  
BD......BLOWING DUST  
VA......VOLCANIC ASH  
DAY 4 THROUGH DAY 7...  
MAX/MIN TEMP OR MIN/MAX TEMP(F).....MAXIMUM/MINIMUM AIR TEMPERATURE  
TEMP(F).............................AIR TEMPERATURE  
DEWPT(F)............................DEW POINT TEMPERATURE  
PWIND DIR(8 POINT COMPASS)..........PREDOMINANT WIND DIRECTION IN 12HR PERIOD  
WIND CHAR(MAX SUSTAINED IN 12HR)....WIND CHARACTERISTIC  
LT.....LIGHT; < 8 MPH  
GN.....GENTLE; 8 - 14 MPH  
BZ.....BREEZY; 15 - 22 MPH  
WY.....WINDY; 23 - 30 MPH  
VW.....VERY WINDY; 31 - 39 MPH  
SD.....STRONG/DAMAGING; >= 40 MPH  
AVG CLOUDS(CAT).....................AVERAGE CLOUD COVER CATEGORY  
SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS  
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION  
WEATHER...  
SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS  
 
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