Louisville Muhammad Ali International to Great Falls International SDF → GTF

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

• SIGMET C15C: thunderstorms (a convective SIGMET) up to 35,000 ft, moving from the southwest at 40 knots, until 6:55 am EDT (10:55 UTC). Over the route from 815 to 874 nm out.
  as issued

  WSUS32 KKCI 120855
  MKCC WST 120855
  CONVECTIVE SIGMET 15C
  VALID UNTIL 1055Z
  SD ND
  FROM 50SE DIK-50ENE DPR-40ENE RAP-50NNW RAP-50SE DIK
  AREA TS MOV FROM 22040KT. TOPS TO FL350.

• AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist, fog). Over the first 89 nm of the route.
• 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 288 to 606 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 last 626 nm of the route.
• 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, 924 nm along the route.
• AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 934 to 1033 nm out.
• AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the last 209 nm of the route.
• AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1132 to 1242 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 SDF.

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 GTF when you get there the forecast at the estimated arrival, 3:11 pm MDT (21:11 UTC)

Wind light and variable, visibility more than 6 miles, overcast at 1,000 feet marginal VFR

The whole forecast for GTF

• From Mon 12:00 am MDT (06:00 UTC): wind from the north-northeast at 12 knots, visibility 3 miles, light snow, overcast at 600 feet
• At times between Mon 12:00 am MDT (06:00 UTC) and 3:00 am MDT (09:00 UTC): visibility 2 miles, light snow
• From Mon 3:00 am MDT (09:00 UTC): wind from the north at 9 knots, visibility more than 6 miles, overcast at 600 feet
• At times between Mon 3:00 am MDT (09:00 UTC) and 5:00 am MDT (11:00 UTC): visibility 2 miles, light snow, overcast at 300 feet
• From Mon 12:00 pm MDT (18:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,000 feet
• From Mon 9:00 pm MDT (03:00 UTC): wind light and variable, visibility 6 miles, mist, scattered clouds at 1,000 feet

The forecast for SDF, the departure

• From Mon 4:00 am EDT (08:00 UTC): wind calm, visibility 3 miles, mist, clear skies
• At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ½ mile, fog, clear skies
• From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
• From Mon 8:00 pm EDT (00:00 UTC): wind from the south at 3 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 SDF 7:09 pm EDT (23:09 UTC), at GTF 6:41 pm MDT (00:41 UTC) (civil twilight ends 7:12 pm MDT (01:12 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.