507  
FOUS55 KGGW 171646  
PFMGGW  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE GLASGOW MT  
946 AM MST SUN FEB 17 2019  
 
MTZ017-172300-  
GLASGOW-VALLEY MT  
48.22N 106.61W ELEV. 2293 FT  
946 AM MST SUN FEB 17 2019  
 
DATE SUN 02/17/19 MON 02/18/19 TUE 02/19/19  
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 7 -9 1 -17 10  
TEMP 1 6 6 4 0 -2 -8 -7 -2 1 -5 -8-12-14-15-16 -1 10 5  
DEWPT -6 -3 -2 -2 -5 -7-13-12 -8 -6-11-14-18-20-21-22 -8 2 -2  
RH 72 66 69 75 79 79 78 78 75 72 74 74 74 73 73 73 71 69 72  
WIND DIR NW NW NW NW NW NW NW NW NW W W W SW S S S S S S  
WIND SPD 11 10 9 6 5 6 6 5 5 5 4 5 5 5 5 6 8 6 6  
CLOUDS OV OV OV OV OV B2 OV B2 B2 B2 B1 SC SC SC FW FW FW FW FW  
POP 12HR 100 80 20 5 0  
QPF 12HR 0.04 0.02 0 0 0  
SNOW 12HR 1 T 00-00  
SNOW D D D L L C S S  
WIND CHILL -16 -9 -8 -8-11-15-22-20-14-10 -20-26-28-30-32-15 -1 -7  
MIN CHILL -22 -16 -12 -23 -24 -16 -27 -32 -33 -9  
WINTER STORM W W  
 
DATE WED 02/20/19 THU 02/21/19 FRI 02/22/19 SAT 02/23/19  
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX -9 13 0 14 -7 8 -7 13  
TEMP -8 -9 9 11 4 2 13 10 -2 -7 4 7 -6 -3 11 12  
DEWPT -12 -14 3 5 0 -1 8 4 -6 -10 -1 1-10 -7 5 5  
PWIND DIR S W NW N N SE S W  
WIND CHAR LT LT GN LT LT LT LT LT  
AVG CLOUDS FW SC SC SC B1 B2 B2 B2 B2 B2 B2 B1 SC SC SC B1  
POP 12HR 5 5 20 30 5 5 5 0  
SNOW S S C S  
 

 
MTZ020-172300-  
WOLF POINT-WESTERN ROOSEVELT MT  
48.10N 105.58W ELEV. 1985 FT  
946 AM MST SUN FEB 17 2019  
 
DATE SUN 02/17/19 MON 02/18/19 TUE 02/19/19  
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 11 -2 3 -16 11  
TEMP 8 11 9 6 3 0 -2 -2 1 3 -2 -7-11-14-15-14 2 11 6  
DEWPT 1 3 2 1 -2 -4 -5 -5 -4 -3 -7-12-16-19-20-19 -4 4 -1  
RH 72 69 72 79 79 83 87 87 79 75 79 78 78 77 77 77 75 73 72  
WIND DIR NW NW NW N NE NE N N NW W W SW SW SW SW SW SW SW SW  
WIND SPD 6 5 3 3 5 5 4 4 4 4 3 4 5 5 5 5 9 9 6  
CLOUDS OV OV OV OV OV B2 OV B2 B2 B2 B1 B1 SC SC FW FW FW FW FW  
POP 12HR 100 80 20 5 0  
QPF 12HR 0.04 0.02 0 0 0  
SNOW 12HR 1 T 00-00  
SNOW D D D L L C S S  
WIND CHILL -4 -8-12 -18-24-28-29-28-13 -2 -5  
MIN CHILL -9 -3 -8 -12 -12 -10 -25 -29 -31 -8  
WINTER WEATH Y Y  
 
DATE WED 02/20/19 THU 02/21/19 FRI 02/22/19 SAT 02/23/19  
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX -9 13 -2 14 -7 10 -7 13  
TEMP -5 -9 10 10 1 0 12 12 -3 -6 5 9 -4 -5 11 11  
DEWPT -10 -14 5 5 -2 -3 8 6 -6 -9 1 3 -7 -9 6 5  
PWIND DIR SW W NW N N E S SW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS FW FW SC SC SC B2 B2 B2 B2 B1 B2 B1 SC SC SC SC  
POP 12HR 0 5 20 20 0 5 0 0  
SNOW S S S  
 

 
MTZ022-172300-  
JORDAN-GARFIELD MT  
47.33N 106.95W ELEV. 2661 FT  
946 AM MST SUN FEB 17 2019  
 
DATE SUN 02/17/19 MON 02/18/19 TUE 02/19/19  
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 5 -13 1 -17 14  
TEMP 1 5 3 -2 -5 -7-12-12 -5 1 -4-12-17-17-17-11 4 14 9  
DEWPT -7 -4 -4 -6 -9-10-15-16-10 -5-10-17-22-22-22-17 -3 6 2  
RH 68 65 72 82 82 86 86 82 78 75 75 78 77 77 77 74 72 70 72  
WIND DIR NW NW NW NW W NW NW W NW NW W SW S S S S S S S  
WIND SPD 12 13 11 6 6 6 6 5 4 4 2 2 4 5 6 6 10 10 6  
CLOUDS OV OV OV OV OV B2 OV B2 B2 B1 B1 SC SC FW FW FW FW FW FW  
POP 12HR 80 40 10 5 0  
QPF 12HR 0.03 0.02 0 0 0  
SNOW 12HR 1 T 00-00  
SNOW L C C C C S  
WIND CHILL -18-13-13-15-19-21-27-26-16 -30-32-33-26-11 1 -2  
MIN CHILL -21 -15 -19 -27 -29 -12 -30 -33 -32 -5  
WINTER WEATH Y Y  
 
DATE WED 02/20/19 THU 02/21/19 FRI 02/22/19 SAT 02/23/19  
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX -5 18 1 16 -6 11 -5 19  
TEMP 1 -5 14 16 6 2 14 13 -3 -4 7 11 -3 -2 16 18  
DEWPT -4 -10 8 11 3 0 10 9 -5 -7 2 6 -7 -5 9 12  
PWIND DIR SW W NW NW N W S SW  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS FW FW SC SC B1 B2 B2 B2 B2 B2 B1 SC SC SC SC B1  
POP 12HR 0 10 20 20 10 10 5 5  
SNOW S S S S  
 

 
MTZ024-172300-  
SIDNEY-RICHLAND MT  
47.70N 104.20W ELEV. 1985 FT  
946 AM MST SUN FEB 17 2019  
 
DATE SUN 02/17/19 MON 02/18/19 TUE 02/19/19  
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 12 -4 4 -14 14  
TEMP 10 12 10 2 -1 -2 -4 -3 1 4 1 -5 -8-11-14-12 4 14 9  
DEWPT 3 4 4 -1 -3 -5 -6 -5 -3 -1 -4 -9-12-15-18-16 -2 8 4  
RH 73 70 76 87 91 87 91 91 83 79 79 82 82 82 81 82 75 76 80  
WIND DIR N N N N N N N NW W NW NW W SW SW SW S S S S  
WIND SPD 6 6 5 6 5 3 3 3 3 4 2 3 5 5 5 6 9 10 8  
CLOUDS OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B1 SC FW FW FW FW FW  
POP 12HR 100 50 20 5 0  
QPF 12HR 0.04 0.02 0 0 0  
SNOW 12HR 1 T 00-00  
SNOW D L C C C C S S  
WIND CHILL -1 1 -10-12 -20-24-28-26-11 1 -3  
MIN CHILL -5 0 -13 -15 -12 -8 -21 -29 -30 -6  
WINTER WEATH Y Y  
 
DATE WED 02/20/19 THU 02/21/19 FRI 02/22/19 SAT 02/23/19  
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX -6 15 -2 14 -5 11 -5 17  
TEMP 0 -6 12 12 -1 1 12 13 2 -5 7 10 -2 -3 14 15  
DEWPT -4 -9 8 8 -4 -2 9 10 -1 -7 3 6 -5 -5 10 10  
PWIND DIR S SW W NW N W S W  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS FW FW FW SC SC B1 B2 B2 B2 B2 B1 B1 B1 B1 SC B1  
POP 12HR 0 5 10 20 5 10 5 5  
SNOW S  
 

 
MTZ025-172300-  
GLENDIVE-DAWSON MT  
47.13N 104.80W ELEV. 2457 FT  
946 AM MST SUN FEB 17 2019  
 
DATE SUN 02/17/19 MON 02/18/19 TUE 02/19/19  
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17  
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00  
 
MAX/MIN 9 -5 5 -16 15  
TEMP 6 9 7 4 1 -3 -4 -5 0 5 0 -5-10-13-16-13 4 15 10  
DEWPT 0 2 0 -1 -3 -6 -7 -8 -5 -2 -6 -9-14-17-20-18 -4 7 3  
RH 76 72 72 79 83 86 86 86 79 72 75 82 82 82 81 77 68 70 73  
WIND DIR NW NW NW NW NW NW NW W W W W W SW SW SW S S SW S  
WIND SPD 11 10 8 6 5 5 4 4 4 4 3 3 4 4 5 5 9 9 6  
CLOUDS OV OV OV OV OV OV OV OV B2 B2 B2 B1 B1 SC FW FW FW FW FW  
POP 12HR 100 80 20 5 0  
QPF 12HR 0.05 0.02 0 0 0  
SNOW 12HR 1 T 00-00  
SNOW D D D L L C S S  
WIND CHILL -9 -5 -6 -8-11-14-15 -25-31-27-11 3 -1  
MIN CHILL -15 -8 -12 -16 -16 -9 -22 -31 -31 -5  
WINTER STORM W W  
 
DATE WED 02/20/19 THU 02/21/19 FRI 02/22/19 SAT 02/23/19  
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17  
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MIN/MAX -6 17 0 16 -5 13 -5 18  
TEMP 0 -5 13 15 2 2 13 15 3 -5 9 12 1 -3 14 17  
DEWPT -4 -9 7 8 -2 -1 8 10 -1 -7 4 6 -3 -6 8 10  
PWIND DIR SW SW W NW N NE SW W  
WIND CHAR LT LT LT LT LT LT LT LT  
AVG CLOUDS FW FW FW SC SC B1 B2 B2 B2 B2 B2 B1 B1 SC SC SC  
POP 12HR 0 5 10 20 5 10 5 5  
SNOW S  
 

 
 
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