Alert archive / Nebraska / Winter Weather Advisories in 2021
Winter Weather Advisory 11, NWS North Platte, NE
NWS North Platte, NE issued this winter weather advisory at Mar 15, 2021, 1:27 PM MDT for 17 counties in Nebraska. It took effect at Mar 15, 2021, 6:00 PM MDT. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Mar 15, 2021, 1:27 PM MDT (19:27 UTC)
- In effect from
- Mar 15, 2021, 6:00 PM MDT
- Expired
- Mar 16, 2021, 11:46 AM MDT
- In force
- 18 hr
- Issued by
- NWS North Platte, NE
Counties Arthur County, NE, Blaine County, NE, Boyd County, NE, Brown County, NE, Cherry County, NE, Garden County, NE, Garfield County, NE, Grant County, NE, Holt County, NE, Hooker County, NE, Keya Paha County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Rock County, NE, Sheridan County, NE, Thomas County, NE
The radar
The North Platte radar (KLNX), 20 km from the middle of the area, began a volume at 19:30 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
Denver, CO (KDNR), launched 12:00Z, 7.5 hours before the alert went out and 342 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
- 971 m above ground
- 0-6 km bulk shear
- 93 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- -29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS North Platte, NE wrote its last area forecast discussion before this winter weather advisory went out at Mar 14, 5:52 PM MDT, 19 hours 35 minutes earlier.
Area forecast discussion, Mar 14, 5:52 PM MDT, 19 hours 35 minutes before
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</html>Hazardous weather outlook, Mar 14, 2:09 PM MDT, 23 hours 18 minutes before
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</html>Nearby
Winter Weather Advisories in Nebraska, 2021Every winter weather 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.