Alert archive / Montana / Wind Advisories in 2019
Wind Advisory 9, NWS Billings, MT
NWS Billings, MT issued this wind advisory at Mar 11, 2019, 2:35 PM MDT for Park County, Stillwater County, Sweet Grass County, Montana. It took effect at Mar 11, 2019, 9:00 PM MDT. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- Mar 11, 2019, 2:35 PM MDT (20:35 UTC)
- In effect from
- Mar 11, 2019, 9:00 PM MDT
- Expired
- Mar 12, 2019, 9:38 AM MDT
- In force
- 13 hr
- Issued by
- NWS Billings, MT
Counties Park County, MT, Stillwater County, MT, Sweet Grass County, MT
The radar
The Billings radar (KBLX), 107 km from the middle of the area, began a volume at 20:33 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
Riverton, WY (KRIW), launched 12:00Z, 8.6 hours before the alert went out and 313 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
- 1982 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Billings, MT wrote its last area forecast discussion before this wind advisory went out at Mar 11, 10:18 AM MDT, 4 hours 17 minutes earlier.
Area forecast discussion, Mar 11, 10:18 AM MDT, 4 hours 17 minutes before
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</html>Hazardous weather outlook, Mar 11, 2:18 PM MDT, 17 minutes before
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</html>In the hours before
Local storm report, Mar 11, 9:35 AM MDT, 5 hours before
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</html>Local storm report, Mar 11, 9:36 AM MDT, 4 hours 59 minutes before
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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.