Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT

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FNUS55 KBYZ 210937
FWFBYZ

Fire Weather Planning Forecast for SCen and SErn Montana
National Weather Service Billings MT
337 AM MDT Mon May 21 2018

.DISCUSSION...
Expect warmer temperatures today with scattered afternoon and
evening showers and thunderstorms, especially across the western
half of the district. Widespread showers and thunderstorms along
with more humid conditions are in store for Tuesday and Wednesday.
Lightning activity will be elevated, and there will likely be
areas of heavy rainfall. Looking ahead, drier and warmer
conditions will return for the end of the week. JKL

MTZ123-212215-
Gallatin National Forest-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Mostly cloudy. Isolated rain showers in the
  morning...then rain showers and scattered thunderstorms in the
  afternoon.
* Max temperature.......65-74 at 5000 feet...56-66 at 7000 feet.
*   24 hr trend.........1 degree cooler.
* Min humidity..........35-45 percent at 5000 feet...41-51 percent
  at 7000 feet.
*   24 hr trend.........1 percent drier.
* Wind (20 ft)
*  Slope/valley.........Southwest winds 5 to 10 mph.
*  Ridgetop.............Southwest 5 to 15 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................50 percent.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Scattered thunderstorms in the evening.
  Mostly cloudy with Scattered rain showers.
* Min temperature.......42-50 at 5000 feet...36-46 at 7000 feet.
*   24 hr trend.........1 degree cooler.
* Max humidity..........95-100 percent.
*   24 hr trend.........17 percent wetter.
* Wind (20 ft)
*  Slope/valley.........South winds 5 to 10 mph.
*  Ridgetop.............Light winds.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................30 percent.

.TUESDAY...
* Sky/weather...........Mostly cloudy. Scattered rain showers in
  the morning...then Numerous rain showers and thunderstorms likely
  in the afternoon. Some thunderstorms may produce heavy rainfall
  in the afternoon.
* Max temperature.......64-71 at 5000 feet...55-65 at 7000 feet.
*   24 hr trend.........1 degree cooler.
* Min humidity..........45-55 percent at 5000 feet...47-57 percent
  at 7000 feet.
*   24 hr trend.........9 percent wetter.
* Wind (20 ft)
*  Slope/valley.........Northeast winds 5 to 10 mph.
*  Ridgetop.............East 5 to 10 mph.
* LAL...................4...16 to 25 strikes/15 min/cell.
* CWR...................50 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Showers with isolated
thunderstorms. Lows 44 to 51. East winds 5 to 10 mph.
.WEDNESDAY...Cloudy. Showers with isolated thunderstorms. Lows
44 to 51. Highs 58 to 65. Southeast winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 45 to 52. Highs 63 to 72. Southwest winds
5 to 10 mph.
.FRIDAY...Partly cloudy. Scattered showers with isolated
thunderstorms. Lows 45 to 52. Highs 69 to 76. Southwest winds
5 to 10 mph.
.SATURDAY...Partly cloudy. Isolated showers. Lows 46 to 53. Highs
73 to 79.
.SUNDAY...Mostly sunny. Isolated showers and thunderstorms. Highs
72 to 77.

$$

MTZ124-212215-
Wheatland County/Sweet Grass County-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Partly sunny. Scattered rain showers and
  thunderstorms in the afternoon.
* Max temperature.......72-77.
*   24 hr trend.........7 degrees warmer.
* Min humidity..........36-41 percent.
*   24 hr trend.........9 percent drier.
* Wind (20 ft)
*  Plains...............West winds 5 to 15 mph in the
   morning...becoming north 5 to 10 mph in the afternoon.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Scattered thunderstorms in the evening.
  Mostly cloudy with Scattered rain showers.
* Min temperature.......47-52.
*   24 hr trend.........5 degrees warmer.
* Max humidity..........90-95 percent.
*   24 hr trend.........4 percent drier.
* Wind (20 ft)
*  Plains...............Northwest winds 5 to 15 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................30 percent.

.TUESDAY...
* Sky/weather...........Mostly cloudy. Scattered rain showers in
  the morning...then Numerous rain showers and thunderstorms likely
  in the afternoon. Some thunderstorms may produce heavy rainfall
  in the afternoon.
* Max temperature.......67-72.
*   24 hr trend.........5 degrees cooler.
* Min humidity..........48-53 percent.
*   24 hr trend.........12 percent wetter.
* Wind (20 ft)
*  Plains...............Northeast winds 5 to 15 mph.
* LAL...................4...16 to 25 strikes/15 min/cell.
* CWR...................50 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 48 to 53. East winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 47 to 52. Highs 63 to 68. Southeast winds
5 to 15 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 48 to 53. Highs 71 to 76. West winds 5 to
15 mph.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
49 to 54. Highs 75 to 80. West winds 5 to 15 mph.
.SATURDAY...Partly cloudy. Lows 49 to 54. Highs 76 to 81.
.SUNDAY...Mostly sunny. Isolated showers and thunderstorms. Highs
76 to 81.

$$

MTZ125-212215-
Stillwater County-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Partly sunny. Scattered rain showers and
  thunderstorms in the afternoon.
* Max temperature.......71-76.
*   24 hr trend.........4 degrees warmer.
* Min humidity..........34-39 percent.
*   24 hr trend.........8 percent drier.
* Wind (20 ft)
*  Plains...............Southwest winds 5 to 10 mph in the
   morning...becoming east in the afternoon.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Mostly cloudy. Scattered rain showers and
  thunderstorms in the evening...then Isolated rain showers
  overnight.
* Min temperature.......50-55.
*   24 hr trend.........4 degrees warmer.
* Max humidity..........77-82 percent.
*   24 hr trend.........7 percent drier.
* Wind (20 ft)
*  Plains...............Southwest winds 5 to 15 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.

.TUESDAY...
* Sky/weather...........Partly sunny. Scattered rain showers in the
  morning...then Numerous rain showers and thunderstorms likely in
  the afternoon. Some thunderstorms may produce heavy rainfall in
  the afternoon.
* Max temperature.......67-72.
*   24 hr trend.........4 degrees cooler.
* Min humidity..........42-47 percent.
*   24 hr trend.........8 percent wetter.
* Wind (20 ft)
*  Plains...............North winds 5 to 10 mph.
* LAL...................4...16 to 25 strikes/15 min/cell.
* CWR...................50 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Showers with isolated
thunderstorms. Lows 49 to 54. North winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy. Showers with isolated thunderstorms.
Lows 49 to 54. Highs 63 to 68. Northwest winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 50 to 55. Highs 70 to 75. West winds 5 to
15 mph.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
51 to 56. Highs 74 to 79. West winds 5 to 10 mph.
.SATURDAY...Partly cloudy. Isolated showers. Lows 51 to 56. Highs
76 to 81.
.SUNDAY...Mostly sunny. Isolated showers and thunderstorms. Highs
76 to 81.

$$

MTZ126-212215-
Beartooth Ranger District Custer National Forest-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Partly sunny. Numerous rain showers and
  scattered thunderstorms in the afternoon.
* Max temperature.......68-76 at 5000 feet...58-68 at 7000 feet.
*   24 hr trend.........3 degrees warmer.
* Min humidity..........28-38 percent at 5000 feet...40-50 percent
  at 7000 feet.
*   24 hr trend.........8 percent drier.
* Wind (20 ft)
*  Slope/valley.........Southwest winds 5 to 10 mph in the
   morning...becoming east in the afternoon.
*  Ridgetop.............Southwest 5 to 10 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................40 percent.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Partly cloudy. Scattered rain showers and
  thunderstorms in the evening...then Isolated rain showers
  overnight.
* Min temperature.......49-54 at 5000 feet...39-49 at 7000 feet.
*   24 hr trend.........6 degrees warmer.
* Max humidity..........78-83 percent.
*   24 hr trend.........4 percent wetter.
* Wind (20 ft)
*  Slope/valley.........Southwest winds 5 to 10 mph.
*  Ridgetop.............South 5 to 10 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.

.TUESDAY...
* Sky/weather...........Partly sunny. Scattered rain showers in the
  morning...then Numerous rain showers and thunderstorms likely in
  the afternoon. Some thunderstorms may produce heavy rainfall in
  the afternoon.
* Max temperature.......67-74 at 5000 feet...54-64 at 7000 feet.
*   24 hr trend.........2 degrees cooler.
* Min humidity..........44-54 percent at 5000 feet...52-62 percent
  at 7000 feet.
*   24 hr trend.........12 percent wetter.
* Wind (20 ft)
*  Slope/valley.........Northeast winds 5 to 10 mph.
*  Ridgetop.............South 5 to 10 mph.
* LAL...................4...16 to 25 strikes/15 min/cell.
* CWR...................60 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Cloudy. Showers with isolated thunderstorms.
Lows 49 to 54. Northeast winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Showers with isolated thunderstorms.
Lows 49 to 54. Highs 62 to 68. Northwest winds 5 to 15 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 49 to 54. Highs 66 to 74. West winds 5 to
15 mph.
.FRIDAY...Partly cloudy. Scattered showers with isolated
thunderstorms. Lows 51 to 56. Highs 70 to 77. West winds 5 to
10 mph.
.SATURDAY...Partly cloudy. Isolated showers. Lows 51 to 57. Highs
73 to 80.
.SUNDAY...Mostly sunny. Isolated showers and thunderstorms. Highs
76 to 82.

$$

MTZ127-212215-
Golden Valley County/Musselshell county-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Mostly sunny. Isolated rain showers and
  thunderstorms in the afternoon.
* Max temperature.......72-77.
*   24 hr trend.........9 degrees warmer.
* Min humidity..........33-38 percent.
*   24 hr trend.........15 percent drier.
* Wind (20 ft)
*  Plains...............South winds 5 to 10 mph.
* LAL...................2...1 to 8 strikes/15 min/cell.
* CWR...................Zero.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Scattered thunderstorms in the evening.
  Mostly cloudy with Scattered rain showers.
* Min temperature.......54-59.
*   24 hr trend.........6 degrees warmer.
* Max humidity..........80-85 percent.
*   24 hr trend.........7 percent wetter.
* Wind (20 ft)
*  Plains...............North winds 5 to 15 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................30 percent.

.TUESDAY...
* Sky/weather...........Partly sunny with Scattered rain showers.
  Scattered thunderstorms in the afternoon. Some thunderstorms may
  produce heavy rainfall in the afternoon.
* Max temperature.......68-73.
*   24 hr trend.........4 degrees cooler.
* Min humidity..........50-55 percent.
*   24 hr trend.........17 percent wetter.
* Wind (20 ft)
*  Plains...............North winds 5 to 15 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 53 to 58. Northeast winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 52 to 57. Highs 64 to 69. North winds 5 to
15 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 53 to 58. Highs 71 to 76. West winds 10 to
20 mph.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
55 to 60. Highs 74 to 79. West winds 5 to 15 mph.
.SATURDAY...Partly cloudy. Lows 55 to 60. Highs 76 to 81.
.SUNDAY...Mostly sunny. Highs 77 to 82.

$$

MTZ128-212215-
Yellowstone County-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Mostly sunny. Isolated rain showers and
  thunderstorms in the afternoon.
* Max temperature.......77-82.
*   24 hr trend.........8 degrees warmer.
* Min humidity..........29-34 percent.
*   24 hr trend.........16 percent drier.
* Wind (20 ft)
*  Plains...............Southwest winds 5 to 10 mph in the
   morning...becoming east in the afternoon.
* LAL...................2...1 to 8 strikes/15 min/cell.
* CWR...................Zero.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Isolated thunderstorms in the evening.
  Mostly cloudy with Isolated rain showers.
* Min temperature.......52-57.
*   24 hr trend.........4 degrees warmer.
* Max humidity..........78-83 percent.
*   24 hr trend.........3 percent drier.
* Wind (20 ft)
*  Plains...............Northwest winds 5 to 15 mph.
* LAL...................2...1 to 8 strikes/15 min/cell.
* CWR...................10 percent.

.TUESDAY...
* Sky/weather...........Partly sunny. Isolated rain showers in the
  morning...then Scattered rain showers and thunderstorms in the
  afternoon. Some thunderstorms may produce heavy rainfall in the
  afternoon.
* Max temperature.......73-78.
*   24 hr trend.........4 degrees cooler.
* Min humidity..........42-47 percent.
*   24 hr trend.........13 percent wetter.
* Wind (20 ft)
*  Plains...............Northwest winds 5 to 10 mph in the
   morning...becoming northeast 5 to 15 mph in the afternoon.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 52 to 57. Northeast winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 52 to 57. Highs 68 to 73. Northwest winds
5 to 10 mph.
.THURSDAY...Mostly cloudy. Isolated showers and thunderstorms.
Lows 53 to 58. Highs 76 to 81. West winds 5 to 15 mph.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
54 to 59. Highs 80 to 85. West winds 5 to 15 mph.
.SATURDAY...Partly cloudy. Lows 54 to 59. Highs 81 to 86.
.SUNDAY...Mostly sunny. Highs 82 to 87.

$$

MTZ129-212215-
Crow Indian Reservation/Bighorn Canyon Rec Area-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Mostly sunny. Isolated rain showers and
  thunderstorms in the afternoon.
* Max temperature.......68-78 at 5000 feet...61-67 at 7000 feet.
*   24 hr trend.........7 degrees warmer.
* Min humidity..........31-41 percent at 5000 feet...40-49 percent
  at 7000 feet.
*   24 hr trend.........10 percent drier.
* Wind (20 ft)
*  Slope/valley.........East winds 5 to 10 mph.
*  Ridgetop.............Northwest 5 to 10 mph.
* LAL...................2...1 to 8 strikes/15 min/cell.
* CWR...................Zero.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Partly cloudy. Scattered rain showers and
  thunderstorms in the evening...then Isolated rain showers
  overnight.
* Min temperature.......50-56 at 5000 feet...46-51 at 7000 feet.
*   24 hr trend.........9 degrees warmer.
* Max humidity..........80-85 percent.
*   24 hr trend.........5 percent wetter.
* Wind (20 ft)
*  Slope/valley.........Southwest winds 5 to 10 mph.
*  Ridgetop.............Southeast 5 to 10 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................Less than 10 percent.

.TUESDAY...
* Sky/weather...........Partly sunny. Scattered rain showers and
  thunderstorms in the afternoon. Some thunderstorms may produce
  heavy rainfall in the afternoon.
* Max temperature.......64-74 at 5000 feet...59-64 at 7000 feet.
*   24 hr trend.........2 degrees cooler.
* Min humidity..........49-59 percent at 5000 feet...60-70 percent
  at 7000 feet.
*   24 hr trend.........17 percent wetter.
* Wind (20 ft)
*  Slope/valley.........North winds 5 to 15 mph.
*  Ridgetop.............East 5 to 10 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Cloudy. Showers with isolated thunderstorms.
Lows 49 to 54. East winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 49 to 54. Highs 59 to 69. Northwest winds
5 to 15 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 50 to 56. Highs 65 to 75. West winds 10 to
20 mph.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
51 to 56. Highs 69 to 79. West winds 10 to 20 mph.
.SATURDAY...Partly cloudy. Lows 51 to 57. Highs 71 to 81.
.SUNDAY...Mostly sunny. Highs 73 to 82.

$$

MTZ130-212215-
Northern Rosebud/Northern Treasure Counties-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Sunny.
* Max temperature.......79-84.
*   24 hr trend.........9 degrees warmer.
* Min humidity..........33-38 percent.
*   24 hr trend.........4 percent drier.
* Wind (20 ft)
*  Plains...............Southeast winds 5 to 10 mph.
* LAL...................1...no thunderstorms.
* CWR...................Zero.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Partly cloudy. Isolated rain showers
  overnight.
* Min temperature.......54-59.
*   24 hr trend.........7 degrees warmer.
* Max humidity..........87-92 percent.
*   24 hr trend.........1 percent drier.
* Wind (20 ft)
*  Plains...............Northeast winds 5 to 10 mph.
* LAL...................1...no thunderstorms.
* CWR...................Less than 10 percent.

.TUESDAY...
* Sky/weather...........Partly sunny with Isolated rain showers.
  Isolated thunderstorms in the afternoon. Some thunderstorms may
  produce heavy rainfall in the afternoon.
* Max temperature.......77-82.
*   24 hr trend.........2 degrees cooler.
* Min humidity..........41-46 percent.
*   24 hr trend.........8 percent wetter.
* Wind (20 ft)
*  Plains...............North winds 5 to 15 mph.
* LAL...................2...1 to 8 strikes/15 min/cell.
* CWR...................10 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 55 to 60. Northeast winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 54 to 59. Highs 72 to 77. Southeast winds
5 to 10 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 55 to 60. Highs 76 to 81. West winds 5 to
15 mph.
.FRIDAY...Partly cloudy. Lows 56 to 61. Highs 81 to 86. West
winds 5 to 15 mph.
.SATURDAY...Mostly clear. Lows 56 to 61. Highs 83 to 88.
.SUNDAY...Sunny. Highs 84 to 89.

$$

MTZ131-212215-
Northern Cheyenne Indian Reservation/Ashland Ranger District
Custer Natl Forest-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Sunny.
* Max temperature.......77-82.
*   24 hr trend.........8 degrees warmer.
* Min humidity..........29-34 percent.
*   24 hr trend.........7 percent drier.
* Wind (20 ft)
*  Slope/valley.........Southeast winds 5 to 10 mph.
*  Ridgetop.............Light winds.
* LAL...................1...no thunderstorms.
* CWR...................Zero.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Partly cloudy. Isolated rain showers
  overnight.
* Min temperature.......50-55.
*   24 hr trend.........6 degrees warmer.
* Max humidity..........84-89 percent.
*   24 hr trend.........2 percent drier.
* Wind (20 ft)
*  Slope/valley.........East winds 5 to 10 mph in the
   evening...becoming southwest overnight.
*  Ridgetop.............Southeast 5 to 10 mph.
* LAL...................1...no thunderstorms.
* CWR...................Less than 10 percent.

.TUESDAY...
* Sky/weather...........Mostly sunny. Isolated rain showers in the
  morning...then Scattered rain showers and thunderstorms in the
  afternoon. Some thunderstorms may produce heavy rainfall in the
  afternoon.
* Max temperature.......76-81.
*   24 hr trend.........1 degree cooler.
* Min humidity..........40-45 percent.
*   24 hr trend.........11 percent wetter.
* Wind (20 ft)
*  Slope/valley.........North winds 5 to 10 mph.
*  Ridgetop.............Northeast 5 to 10 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................10 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 53 to 58. East winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 52 to 57. Highs 71 to 76. Southeast winds
5 to 10 mph.
.THURSDAY...Mostly cloudy. Isolated showers and thunderstorms.
Lows 52 to 57. Highs 74 to 79. West winds 5 to 15 mph.
.FRIDAY...Partly cloudy. Lows 53 to 58. Highs 78 to 83. Northwest
winds 5 to 15 mph.
.SATURDAY...Mostly clear. Lows 53 to 58. Highs 79 to 84.
.SUNDAY...Sunny. Highs 81 to 86.

$$

MTZ132-212215-
Custer County-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Sunny.
* Max temperature.......75-80.
*   24 hr trend.........11 degrees warmer.
* Min humidity..........30-35 percent.
*   24 hr trend.........Unchanged.
* Wind (20 ft)
*  Plains...............Southeast winds 5 to 15 mph.
* LAL...................1...no thunderstorms.
* CWR...................Zero.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Mostly clear. Isolated rain showers
  overnight.
* Min temperature.......52-57.
*   24 hr trend.........7 degrees warmer.
* Max humidity..........86-91 percent.
*   24 hr trend.........10 percent wetter.
* Wind (20 ft)
*  Plains...............Southeast winds 5 to 15 mph.
* LAL...................1...no thunderstorms.
* CWR...................Less than 10 percent.

.TUESDAY...
* Sky/weather...........Partly sunny. Isolated rain showers in the
  morning...then Scattered rain showers and thunderstorms in the
  afternoon. Some thunderstorms may produce heavy rainfall in the
  afternoon.
* Max temperature.......76-81.
*   24 hr trend.........1 degree warmer.
* Min humidity..........41-46 percent.
*   24 hr trend.........11 percent wetter.
* Wind (20 ft)
*  Plains...............Northeast winds 5 to 10 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................10 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 55 to 60. East winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 54 to 59. Highs 71 to 76. Southeast winds
5 to 15 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 54 to 59. Highs 72 to 77. West winds 5 to
15 mph.
.FRIDAY...Partly cloudy. Lows 54 to 59. Highs 76 to 81. Northwest
winds 5 to 15 mph.
.SATURDAY...Mostly clear. Lows 54 to 59. Highs 78 to 83.
.SUNDAY...Sunny. Highs 78 to 83.

$$

MTZ133-212215-
Sioux Ranger District Custer National Forest-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Sunny.
* Max temperature.......74-79.
*   24 hr trend.........13 degrees warmer.
* Min humidity..........30-35 percent.
*   24 hr trend.........1 percent wetter.
* Wind (20 ft)
*  Plains...............Southeast winds 10 to 20 mph.
* LAL...................1...no thunderstorms.
* CWR...................Zero.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Mostly clear.
* Min temperature.......48-53.
*   24 hr trend.........6 degrees warmer.
* Max humidity..........94-99 percent.
*   24 hr trend.........17 percent wetter.
* Wind (20 ft)
*  Plains...............Southeast winds 5 to 15 mph.
* LAL...................1...no thunderstorms.
* CWR...................Zero.

.TUESDAY...
* Sky/weather...........Partly sunny. Scattered rain showers and
  thunderstorms in the afternoon. Some thunderstorms may produce
  heavy rainfall in the afternoon.
* Max temperature.......77-82.
*   24 hr trend.........3 degrees warmer.
* Min humidity..........39-44 percent.
*   24 hr trend.........9 percent wetter.
* Wind (20 ft)
*  Plains...............Southeast winds 5 to 15 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 53 to 58. East winds 5 to 15 mph.
.WEDNESDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 53 to 58. Highs 73 to 78. Southeast winds
5 to 15 mph.
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 54 to 59. Highs 75 to 80. West winds 5 to 15 mph.
.FRIDAY...Mostly clear. Lows 53 to 58. Highs 77 to 82. Northwest
winds 10 to 20 mph with gusts to around 30 mph.
.SATURDAY...Mostly clear. Lows 53 to 58. Highs 78 to 83.
.SUNDAY...Sunny. Highs 78 to 83.

$$

WYZ274-212215-
Sheridan County-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Mostly sunny. Isolated rain showers and
  thunderstorms in the afternoon.
* Max temperature.......76-81.
*   24 hr trend.........8 degrees warmer.
* Min humidity..........34-39 percent.
*   24 hr trend.........5 percent drier.
* Wind (20 ft)
*  Slope/valley.........Northwest winds 5 to 10 mph in the
   morning...becoming south in the afternoon.
*  Ridgetop.............Northwest 5 to 10 mph.
* LAL...................2...1 to 8 strikes/15 min/cell.
* CWR...................Less than 10 percent.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Partly cloudy. Scattered rain showers and
  thunderstorms in the evening...then Isolated rain showers
  overnight.
* Min temperature.......48-53.
*   24 hr trend.........5 degrees warmer.
* Max humidity..........87-92 percent.
*   24 hr trend.........5 percent wetter.
* Wind (20 ft)
*  Slope/valley.........Southwest winds 5 to 10 mph.
*  Ridgetop.............Southeast 5 to 15 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................Less than 10 percent.

.TUESDAY...
* Sky/weather...........Partly sunny. Isolated rain showers in the
  morning...then Scattered rain showers and thunderstorms in the
  afternoon. Some thunderstorms may produce heavy rainfall in the
  afternoon.
* Max temperature.......73-78.
*   24 hr trend.........3 degrees cooler.
* Min humidity..........42-47 percent.
*   24 hr trend.........8 percent wetter.
* Wind (20 ft)
*  Slope/valley.........Northwest winds 5 to 15 mph.
*  Ridgetop.............North 5 to 10 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................20 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Showers with isolated
thunderstorms. Lows 50 to 55. West winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy. Numerous showers with isolated
thunderstorms. Lows 49 to 54. Highs 69 to 74. Northwest winds
5 to 10 mph.
.THURSDAY...Mostly cloudy. Isolated showers and thunderstorms.
Lows 49 to 54. Highs 73 to 78. West winds 5 to 15 mph.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
50 to 55. Highs 76 to 81. West winds 5 to 10 mph.
.SATURDAY...Partly cloudy. Lows 50 to 55. Highs 78 to 83.
.SUNDAY...Mostly sunny. Highs 80 to 85.

$$

WYZ284-212215-
Bighorn National Forest-
337 AM MDT Mon May 21 2018

.Today...
* Sky/weather...........Mostly sunny in the morning...then mostly
  cloudy with numerous rain showers and scattered thunderstorms in
  the afternoon.
* Max temperature.......59-64.
*   24 hr trend.........2 degrees warmer.
* Min humidity..........39-44 percent.
*   24 hr trend.........1 percent wetter.
* Wind (20 ft)
*  At Burgess Jct.......South winds 5 to 10 mph in the
   morning...becoming east in the afternoon.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................30 percent.
* Haines index..........3.

.TONIGHT...
* Sky/weather...........Mostly cloudy. Scattered rain showers and
  thunderstorms in the evening...then Isolated rain showers
  overnight.
* Min temperature.......38-43.
*   24 hr trend.........5 degrees warmer.
* Max humidity..........77-82 percent.
*   24 hr trend.........17 percent drier.
* Wind (20 ft)
*  At Burgess Jct.......Southwest winds 5 to 10 mph.
* LAL...................3...9 to 15 strikes/15 min/cell.
* CWR...................10 percent.

.TUESDAY...
* Sky/weather...........Mostly cloudy. Isolated rain showers in the
  morning...then Numerous rain showers and thunderstorms likely in
  the afternoon. Some thunderstorms may produce heavy rainfall in
  the afternoon.
* Max temperature.......58-63.
*   24 hr trend.........1 degree cooler.
* Min humidity..........47-52 percent.
*   24 hr trend.........8 percent wetter.
* Wind (20 ft)
*  At Burgess Jct.......North winds 5 to 15 mph.
* LAL...................4...16 to 25 strikes/15 min/cell.
* CWR...................50 percent.
* Haines index..........3.


.Forecast days 3 through 7......
.TUESDAY NIGHT...Cloudy. Showers with isolated thunderstorms.
Lows 39 to 44. East winds 5 to 10 mph.
.WEDNESDAY...Mostly cloudy. Showers with isolated thunderstorms.
Lows 39 to 44. Highs 53 to 58. Southwest winds 5 to 10 mph.
.THURSDAY...Mostly cloudy. Scattered showers with isolated
thunderstorms. Lows 40 to 45. Highs 56 to 61. West winds 5 to
15 mph.
.FRIDAY...Partly cloudy. Scattered showers with isolated
thunderstorms. Lows 41 to 46. Highs 59 to 64. West winds 5 to
15 mph.
.SATURDAY...Partly cloudy. Isolated showers. Lows 42 to 47. Highs
62 to 67.
.SUNDAY...Mostly sunny. Isolated showers and thunderstorms. Highs
66 to 71.

$$

weather.gov/billings



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