Alert archive / Montana / Red Flag Warnings in 2017
Red Flag Warning 18, NWS Glasgow, MT
NWS Glasgow, MT issued this red flag warning at Oct 16, 2017, 3:09 PM MDT for 5 counties in Montana. It took effect at Oct 17, 2017, 11:00 AM MDT. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 16, 2017, 3:09 PM MDT (21:09 UTC)
- In effect from
- Oct 17, 2017, 11:00 AM MDT
- Expired
- Oct 17, 2017, 8:58 PM MDT
- In force
- 10 hr
- Issued by
- NWS Glasgow, MT
Counties Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Valley County, MT
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 9.2 hours before the alert went out and 262 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2668 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 276 m²/s²
- 0-3 km storm-relative helicity
- 324 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Glasgow, MT wrote its last area forecast discussion before this red flag warning went out at Oct 16, 8:28 AM MDT, 6 hours 41 minutes earlier.
Area forecast discussion, Oct 16, 8:28 AM MDT, 6 hours 41 minutes before
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</html>Hazardous weather outlook, Oct 16, 3:20 AM MDT, 11 hours 49 minutes before
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</html>The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 3:04 PM MDT | High Wind Watch | GGW | Phillips | 12 hr |
Nearby
Red Flag Warnings in Montana, 2017Every red flag warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.