Alert archive / Montana / Lake Wind Advisories in 2021
Lake Wind Advisory 17, NWS Glasgow, MT
NWS Glasgow, MT issued this lake wind advisory at Jun 13, 2021, 8:40 PM MDT for 5 counties in Montana. It took effect at Jun 14, 2021, 10:00 AM MDT. It was in force for 32 hr.
The area
The counties it named.
The facts
- Issued
- Jun 13, 2021, 8:40 PM MDT (02:40 UTC)
- In effect from
- Jun 14, 2021, 10:00 AM MDT
- Expired
- Jun 15, 2021, 6:00 PM MDT
- In force
- 32 hr
- Issued by
- NWS Glasgow, MT
Counties Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Valley County, MT
The radar
The Glasgow radar (KGGW), 64 km from the middle of the area, began a volume at 02:43 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, 2.7 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
- 253 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 3063 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.0
What forecasters said that day
The local office's own words before this lake wind advisory 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 lake wind advisory went out at Jun 13, 1:43 PM MDT, 6 hours 57 minutes earlier.
Area forecast discussion, Jun 13, 1:43 PM MDT, 6 hours 57 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 |
|---|---|---|---|---|
| Jun 14, 3:02 AM MDT | Excessive Heat Warning | GGW | Dawson, Garfield, McCone, Petroleum, Phillips, Prairie and 4 more | 42 hr |
| Jun 14, 3:02 AM MDT | Heat Advisory | GGW | Daniels, Sheridan | 42 hr |
| Jun 14, 3:10 AM MDT | Fire Weather Watch | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 24 hr |
| Jun 14, 1:45 PM MDT | Red Flag Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 56 hr |
Nearby
Lake Wind Advisories in Montana, 2021Every lake wind advisory in 2021
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.