Alert archive / Montana / Red Flag Warnings in 2015

Red Flag Warning 1, NWS Glasgow, MT

March 14, 20159 counties in Montana

NWS Glasgow, MT issued this red flag warning at Mar 14, 2015, 4:06 AM MDT for 9 counties in Montana. It took effect at Mar 14, 2015, 12:00 PM MDT. It was in force for 8 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: Mar 14, 2015, 4:06 AM MDT (10:06 UTC)
In effect from: Mar 14, 2015, 12:00 PM MDT
Expired: Mar 14, 2015, 7:45 PM MDT
In force: 8 hr
Issued by: NWS Glasgow, MT

Counties Dawson County, MT, Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Prairie County, MT, Richland County, MT, Valley County, MT, Wibaux County, MT

The radar

The Glasgow radar (KGGW), 88 km from the middle of the area, began a volume at 10:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Great_falls, MT (KTFX), launched 00:00Z, 10.1 hours before the alert went out and 340 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3433 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Mar 13, 2:54 PM MDT, 13 hours 12 minutes earlier.

Area forecast discussion, Mar 13, 2:54 PM MDT, 13 hours 12 minutes before

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The office that day

Everything else NWS Glasgow, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 14, 4:56 AM MDT	Areal Flood Warning	GGW	Roosevelt	31 hr
Mar 14, 3:11 PM MDT	Flash Flood Watch	GGW	Roosevelt	21 hr

Nearby

Red Flag Warnings in Montana, 2015 Every red flag warning in 2015

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; radar from the NEXRAD Level II archive.