703  
FNUS53 KUNR 190916  
FWFUNR  
 
FIRE WEATHER PLANNING FORECAST FOR NE WYOMING AND WRN SOUTH DAKOTA  
NATIONAL WEATHER SERVICE RAPID CITY SD  
316 AM MDT TUE SEP 19 2017  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH  
EARLY WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY  
FOR FIRE WEATHER ZONES 259...262...263...264...297...298 AND  
299...  
   
DISCUSSION
 
MIN RH'S AROUND 20 PERCENT ARE EXPECTED ACROSS  
PORTIONS OF SW SD AND SOUTH CENTRAL SD THIS AFTERNOON AHEAD OF A  
COLD FRONT. ALTHOUGH CRITICAL FIRE WEATHER CONDS ARE NOT EXPECTED,  
EXTREME GRASSLAND FIRE DANGER IS FORECAST. WINDS WILL VEER NW  
WITH RISING RH BEHIND THE COLD FRONT, WHICH IS EXPECTED SOMETIME  
MID TO LATE AFTERNOON. DRY GUSTY SOUTHWEST FLOW WILL DEVELOP  
WEDNESDAY AFTERNOON, POTENTIALLY SUPPORTING CRITICAL FIRE WEATHER  
CONDS. RELATIVE HUMIDITY LOOKS TO FALL TO OR BELOW 15 PERCENT OVER  
MUCH OF NORTHEAST WY AND SOUTHWEST SD WITH SUSTAINED WINDS OF 20  
TO 25 MPH (GUSTS OVER 35 MPH POSSIBLE). THE BREEZIEST WINDS LOOK  
TO BE ACROSS NORTHEAST WY AND FAR SOUTHWEST SD AT THIS TIME, WITH  
THE POTENTIAL FOR VERY LOW RELATIVE HUMIDITY AND BREEZY CONDS IN  
AND AROUND THE BLACK HILLS ALSO. WINDS AND RH TEND TO BE HIGHER  
AND LOWER RESPECTIVELY IN THIS TYPE OF SETUP. GIVEN CURRENT  
FORECAST NUMBERS AND A DECENT POTENTIAL FOR CRITICAL FIRE WEATHER  
CONDS, HAVE ISSUED A FIRE WEATHER WATCH FOR NE WY AND SW SD  
WEDNESDAY.  
 
MUCH COOLER AND WETTER CONDITIONS ARE EXPECTED TOWARD THIS  
WEEKEND.  
 
WYZ297-192230-  
NORTHERN CAMPBELL-  
INCLUDING THE CITY OF GILLETTE  
316 AM MDT TUE SEP 19 2017  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH  
WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS UNTIL  
1200, THEN SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS.  
CHC OF WETTING RAIN.40 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....AROUND 57.  
MIN HUMIDITY........46-52 PERCENT.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
SMOKE DISPERSAL.....GOOD.  
MIXING HEIGHT.......4000 TO 5100 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 37.  
MAX HUMIDITY........87-95 PERCENT.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......100 TO 200 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 68.  
MIN HUMIDITY........19 PERCENT.  
20-FOOT WINDS.......WINDY. SOUTHWEST 10 TO 15 MPH INCREASING TO 15  
TO 30 MPH IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 35  
MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......6300 TO 7900 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE  
LOWER 60S. NORTH WINDS 15 TO 20 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN  
THE UPPER 30S. HIGHS IN THE MID 50S. NORTHEAST WINDS AROUND  
15 MPH.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 40S. NORTHEAST  
WINDS AROUND 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.  
LOWS IN THE MID 30S. HIGHS IN THE UPPER 40S.    
MONDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 40S.  
 

 
 
WYZ259-192230-  
SOUTHERN CAMPBELL-  
INCLUDING THE CITY OF WRIGHT  
316 AM MDT TUE SEP 19 2017  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH  
WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS UNTIL  
1200, THEN SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....AROUND 61.  
MIN HUMIDITY........34-42 PERCENT.  
20-FOOT WINDS.......WEST 10 TO 20 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO WEST  
AROUND 30 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT IN THE  
AFTERNOON.  
MIXING HEIGHT.......5700 TO 7200 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.20 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 38.  
MAX HUMIDITY........78-86 PERCENT.  
20-FOOT WINDS.......WEST 10 TO 15 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......300 TO 400 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 67.  
MIN HUMIDITY........19 PERCENT.  
20-FOOT WINDS.......WINDY. SOUTHWEST 10 TO 20 MPH INCREASING TO 15  
TO 30 MPH IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH INCREASING TO AROUND 40  
MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT IN THE  
AFTERNOON.  
MIXING HEIGHT.......5800 TO 7300 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID  
60S. NORTH WINDS 15 TO 20 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS AROUND 50. NORTHEAST WINDS  
AROUND 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.  
LOWS IN THE MID 30S. HIGHS IN THE MID 40S.    
MONDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.  
 

 
 
WYZ298-192230-  
CROOK AND WESTON COUNTY PLAINS-  
INCLUDING THE CITIES OF COLONY, MOORCROFT, NEWCASTLE, AND UPTON  
316 AM MDT TUE SEP 19 2017  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH  
WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS UNTIL  
1200, THEN SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....61-69.  
MIN HUMIDITY........31-47 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 20 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO WEST  
AROUND 25 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT IN THE  
AFTERNOON.  
MIXING HEIGHT.......5800 TO 7300 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 37.  
MAX HUMIDITY........83-95 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 15 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......200 TO 300 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 68.  
MIN HUMIDITY........18 PERCENT.  
20-FOOT WINDS.......BREEZY. SOUTHWEST 10 TO 15 MPH INCREASING TO 15  
TO 25 MPH IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO SOUTHWEST  
AROUND 35 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......6200 TO 7800 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE  
UPPER 60S. NORTH WINDS 15 TO 20 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS AROUND  
40. HIGHS IN THE LOWER 60S. EAST WINDS AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS IN THE LOWER 50S. NORTHEAST WINDS AROUND 15 MPH.   
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.  
LOWS IN THE MID 30S. HIGHS IN THE UPPER 40S.    
MONDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S.  
 

 
 
WYZ299-192230-  
WYOMING BLACK HILLS-  
INCLUDING THE CITIES OF SUNDANCE AND FOUR CORNERS  
316 AM MDT TUE SEP 19 2017  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH  
WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS AFTER 1200.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....AROUND 63.  
MIN HUMIDITY........35-41 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 15 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
SMOKE DISPERSAL.....VERY GOOD.  
MIXING HEIGHT.......4700 TO 5900 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.20 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 36.  
MAX HUMIDITY........91-99 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 15 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......200 TO 300 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....61-67.  
MIN HUMIDITY........19 PERCENT.  
20-FOOT WINDS.......BREEZY. SOUTHWEST 5 TO 15 MPH INCREASING TO 10  
TO 25 MPH IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 35  
MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......5800 TO 7300 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID  
60S. NORTH WINDS 10 TO 15 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
LOWER 40S. HIGHS IN THE UPPER 50S. EAST WINDS 10 TO 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS AROUND 50. NORTHEAST WINDS AROUND 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.  
LOWS IN THE MID 30S. HIGHS IN THE UPPER 40S.    
MONDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS AROUND 50.  
 

 
 
SDZ260-192230-  
NORTHERN BLACK HILLS-  
INCLUDING THE CITIES OF LEAD, DEADWOOD, SPEARFISH, AND STURGIS  
316 AM MDT TUE SEP 19 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS AFTER 1200.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....63-71.  
MIN HUMIDITY........33-39 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 15 MPH.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT IN THE  
AFTERNOON.  
MIXING HEIGHT.......5000 TO 6300 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN MOSTLY CLEAR.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.20 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....33-41.  
MAX HUMIDITY........88-96 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 15 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......100 TO 200 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....61-71.  
MIN HUMIDITY........20 PERCENT.  
20-FOOT WINDS.......SOUTHWEST 5 TO 20 MPH.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO SOUTHWEST  
AROUND 30 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......6200 TO 7800 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE  
UPPER 60S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS AROUND  
40. HIGHS IN THE LOWER 60S. NORTHEAST WINDS AROUND 15 MPH.    
SATURDAY
 
COOLER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 50S. NORTH  
WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.  
LOWS IN THE MID 30S. HIGHS IN THE UPPER 40S.    
MONDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF  
SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S.  
 

 
 
SDZ262-192230-  
SOUTHERN BLACK HILLS-  
INCLUDING THE CITIES OF RAPID CITY, HILL CITY, CUSTER,  
HOT SPRINGS, AND EDGEMONT  
316 AM MDT TUE SEP 19 2017  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH  
WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS AFTER 1200.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....66-76.  
MIN HUMIDITY........24-34 PERCENT.  
20-FOOT WINDS.......BREEZY. SOUTHWEST 10 TO 15 MPH SHIFTING TO THE  
WEST 15 TO 25 MPH IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO WEST  
AROUND 35 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......6300 TO 7900 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN MOSTLY CLEAR.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.20 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....35-41.  
MAX HUMIDITY........85-95 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 15 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......200 TO 300 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....62-72.  
MIN HUMIDITY........18 PERCENT.  
20-FOOT WINDS.......SOUTHWEST 5 TO 20 MPH.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO SOUTHWEST  
AROUND 35 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......6300 TO 7900 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE  
LOWER 70S. SOUTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
MID 40S. HIGHS IN THE MID 60S. NORTHEAST WINDS AROUND 15 MPH.    
SATURDAY
 
COOLER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS  
AROUND 40. HIGHS IN THE MID 50S. NORTHEAST WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE UPPER  
30S. HIGHS IN THE LOWER 50S.    
MONDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 50S.  
 

 
 
SDZ261-192230-  
NORTHWESTERN SOUTH DAKOTA PLAINS-  
INCLUDING THE CITIES OF BELLE FOURCHE, BISON, FAITH,  
UNION CENTER, NEW UNDERWOOD, AND WASTA  
316 AM MDT TUE SEP 19 2017  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. ISOLATED RAIN SHOWERS UNTIL 1200, THEN  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....68-76.  
MIN HUMIDITY........31-43 PERCENT.  
20-FOOT WINDS.......BREEZY. SOUTHWEST 10 TO 15 MPH SHIFTING TO THE  
NORTHWEST 10 TO 25 MPH IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
SMOKE DISPERSAL.....FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.  
MIXING HEIGHT.......5300 TO 6700 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.20 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 41.  
MAX HUMIDITY........94 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 20 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......100 TO 200 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 72.  
MIN HUMIDITY........19 PERCENT.  
20-FOOT WINDS.......BREEZY. WEST 5 TO 15 MPH SHIFTING TO THE  
SOUTHWEST 10 TO 25 MPH IN THE AFTERNOON.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......6300 TO 7900 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE  
MID 70S. NORTH WINDS 15 TO 20 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
MID 40S. HIGHS IN THE MID 60S. NORTH WINDS AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE  
LOWER 40S. HIGHS IN THE UPPER 50S. NORTH WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS AROUND 40.  
HIGHS IN THE MID 50S.    
MONDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS IN THE UPPER 50S.  
 

 
 
SDZ264-192230-  
BADLANDS AREA-  
INCLUDING THE CITIES OF WALL, INTERIOR, RED SHIRT, AND SCENIC  
316 AM MDT TUE SEP 19 2017  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH  
WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
CHC OF WETTING RAIN.10 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....AROUND 80.  
MIN HUMIDITY........23 PERCENT.  
20-FOOT WINDS.......BREEZY. SOUTHWEST 10 TO 15 MPH SHIFTING TO THE  
WEST 15 TO 25 MPH IN THE AFTERNOON.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......6500 TO 8200 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN MOSTLY CLEAR.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.20 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 43.  
MAX HUMIDITY........92-98 PERCENT.  
20-FOOT WINDS.......BREEZY. NORTHWEST 10 TO 25 MPH SHIFTING TO THE  
WEST 5 TO 15 MPH AFTER MIDNIGHT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......200 TO 300 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........16 PERCENT.  
20-FOOT WINDS.......SOUTHWEST 5 TO 15 MPH INCREASING TO 15 TO 20  
MPH IN THE AFTERNOON.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO SOUTHWEST  
AROUND 30 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......5800 TO 7300 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
UPPER 70S. WEST WINDS AROUND 20 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
UPPER 40S. HIGHS AROUND 70. NORTH WINDS AROUND 15 MPH.    
SATURDAY
 
COOLER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN  
THE MID 40S. HIGHS AROUND 60. NORTH WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE LOWER  
40S. HIGHS IN THE UPPER 50S.    
MONDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS AROUND  
40. HIGHS IN THE UPPER 50S.  
 

 
 
SDZ263-192230-  
SOUTHWESTERN SOUTH DAKOTA-  
INCLUDING THE CITIES OF PINE RIDGE, ARDMORE, OELRICHS, AND OGLALA  
316 AM MDT TUE SEP 19 2017  
 
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH  
WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...  
   
TODAY
 
 
SKY/WEATHER.........PARTLY SUNNY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
CHC OF WETTING RAIN.10 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....AROUND 80.  
MIN HUMIDITY........20 PERCENT.  
20-FOOT WINDS.......BREEZY. SOUTHWEST 10 TO 15 MPH SHIFTING TO THE  
WEST 15 TO 25 MPH IN THE AFTERNOON.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH INCREASING TO WEST  
AROUND 35 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......7500 TO 9400 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN MOSTLY CLEAR.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.20 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 39.  
MAX HUMIDITY........84-96 PERCENT.  
20-FOOT WINDS.......WEST 5 TO 20 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......200 TO 300 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........15 PERCENT.  
20-FOOT WINDS.......SOUTHWEST 10 TO 20 MPH.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....WEST 25 TO 30 MPH.  
SMOKE DISPERSAL.....VERY GOOD INCREASING TO EXCELLENT IN THE  
AFTERNOON.  
MIXING HEIGHT.......6600 TO 8300 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 50. HIGHS AROUND 80.  
SOUTHWEST WINDS AROUND 20 MPH.    
FRIDAY
 
NOT AS WARM. PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS.  
LOWS IN THE MID 40S. HIGHS AROUND 70. NORTH WINDS AROUND 15 MPH.    
SATURDAY
 
COOLER. MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN  
THE LOWER 40S. HIGHS AROUND 60. NORTHEAST WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE UPPER  
30S. HIGHS IN THE UPPER 50S.    
MONDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S.  
 

 
 
SDZ266-192230-  
CENTRAL SOUTH DAKOTA PLAINS-  
INCLUDING THE CITIES OF DUPREE AND PHILIP  
316 AM MDT TUE SEP 19 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
CHC OF WETTING RAIN.10 PERCENT.  
LAL.................1 UNTIL 1200, THEN 2.  
MAX TEMPERATURE.....76-82.  
MIN HUMIDITY........24-34 PERCENT.  
20-FOOT WINDS.......SOUTH 10 TO 20 MPH SHIFTING TO THE WEST 15 TO  
20 MPH IN THE AFTERNOON.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....SOUTH AROUND 25 MPH SHIFTING TO THE WEST IN THE  
AFTERNOON.  
SMOKE DISPERSAL.....GOOD.  
MIXING HEIGHT.......5000 TO 6300 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.30 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 43.  
MAX HUMIDITY........95 PERCENT.  
20-FOOT WINDS.......BREEZY. NORTHWEST 10 TO 25 MPH SHIFTING TO THE  
WEST 10 TO 15 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH BECOMING WEST AROUND 15  
MPH AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......300 TO 400 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 74.  
MIN HUMIDITY........18 PERCENT.  
20-FOOT WINDS.......SOUTHWEST 10 TO 20 MPH.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD INCREASING TO VERY GOOD IN THE AFTERNOON.  
MIXING HEIGHT.......5700 TO 7200 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE UPPER  
70S. SOUTH WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
UPPER 40S. HIGHS AROUND 70. NORTH WINDS AROUND 15 MPH.    
SATURDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE MID  
40S. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE LOWER  
40S. HIGHS IN THE UPPER 50S.    
MONDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS AROUND  
40. HIGHS IN THE LOWER 60S.  
 

 
 
SDZ265-192230-  
SOUTH CENTRAL SOUTH DAKOTA-  
INCLUDING THE CITIES OF MARTIN, MISSION, WHITE RIVER, AND WINNER  
316 AM MDT TUE SEP 19 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CHC OF WETTING RAIN.10 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....83-89.  
MIN HUMIDITY........18-29 PERCENT.  
20-FOOT WINDS.......BREEZY. SOUTHWEST 10 TO 25 MPH.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......6300 TO 7900 FT AGL.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHC OF WETTING RAIN.20 PERCENT.  
LAL.................2 UNTIL 2400, THEN 1.  
MIN TEMPERATURE.....AROUND 45.  
MAX HUMIDITY........90-96 PERCENT.  
20-FOOT WINDS.......BREEZY. WEST 15 TO 25 MPH DECREASING TO 10 TO  
15 MPH AFTER MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR.  
MIXING HEIGHT.......200 TO 300 FT AGL.  
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY.  
CHC OF WETTING RAIN.0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 76.  
MIN HUMIDITY........15-21 PERCENT.  
20-FOOT WINDS.......SOUTHWEST 10 TO 20 MPH.  
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.  
MIXING HEIGHT.......5500 TO 6900 FT AGL.  
 
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
BREEZY. MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN  
THE LOWER 80S. SOUTH WINDS 20 TO 25 MPH.    
FRIDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S.  
NORTHWEST WINDS AROUND 15 MPH.    
SATURDAY
 
COOLER. MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN  
THE UPPER 40S. HIGHS IN THE MID 60S. NORTH WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE MID 40S.  
HIGHS AROUND 60.    
MONDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE  
LOWER 40S. HIGHS IN THE LOWER 60S.  
 

 
 
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