Frederick W Smith Intl/Memphis Airport to Boise Air Trml/Gowen Field MEM → BOI

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

• SIGMET W21W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 7:55 am CDT (12:55 UTC). Near the route, 1136 nm along the route.
  as issued

  WSUS33 KKCI 121055
  MKCW WST 121055
  CONVECTIVE SIGMET 21W
  VALID UNTIL 1255Z
  UT ID NV
  FROM 40ENE TWF-20SSE PIH-40E BVL-20WNW BVL-40ENE TWF
  AREA TS MOV FROM 24020KT. TOPS TO FL270.

• AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 169 to 578 nm out.
• AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, 688 nm along the route.
• AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 717 to 976 nm out.
• AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 777 to 897 nm out.
• AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 787 to 917 nm out.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 847 to 1255 nm out.
• AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 877 to 907 nm out.
• AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 887 to 1275 nm out.
• AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1136 to 1275 nm out.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from MEM.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

No pilot reports within 50 nautical miles of the line in the last three hours.

At BOI when you get there the forecast at the estimated arrival, 5:12 pm MDT (23:12 UTC)

Wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet VFR

The whole forecast for BOI

• From Mon 6:00 am MDT (12:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
• From Mon 12:00 pm MDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet

The forecast for MEM, the departure

• From Mon 7:00 am CDT (12:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, a few clouds at 25,000 feet
• From Mon 11:00 am CDT (16:00 UTC): wind from the west-southwest at 10 knots, gusting to 17, visibility more than 6 miles, clear skies
• From Mon 8:00 pm CDT (01:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies

Temporary flight restrictions on the line or within 25 nm of it

No temporary flight restriction on or near this route right now.

Daylight

Sunset at MEM 6:29 pm CDT (23:29 UTC), at BOI 7:05 pm MDT (01:05 UTC) (civil twilight ends 7:33 pm MDT (01:33 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.