Alert archive / Nebraska / Winter Weather Advisories in 2021

Winter Weather Advisory 2, NWS Hastings, NE

January 24, 2021Greeley County, Nance County, Valley County, Nebraska

NWS Hastings, NE issued this winter weather advisory at Jan 24, 2021, 1:18 PM CST for Greeley County, Nance County, Valley County, Nebraska. It took effect at Jan 25, 2021, 6:00 AM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 24, 2021, 1:18 PM CST (19:18 UTC)
In effect from: Jan 25, 2021, 6:00 AM CST
Expired: Jan 25, 2021, 4:07 AM CST
In force
Issued by: NWS Hastings, NE

Counties Greeley County, NE, Nance County, NE, Valley County, NE

The radar

The Grand Island radar (KUEX), 132 km from the middle of the area, began a volume at 19:15 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 7.3 hours before the alert went out and 181 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: 859 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: -63 m²/s²
0-3 km storm-relative helicity: -14 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 winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this winter weather advisory went out at Jan 24, 11:01 AM CST, 2 hours 17 minutes earlier.

Area forecast discussion, Jan 24, 11:01 AM CST, 2 hours 17 minutes before

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Hazardous weather outlook, Jan 24, 4:49 AM CST, 8 hours 29 minutes before

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The office that day

Everything else NWS Hastings, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 24, 4:14 AM CST	Winter Storm Watch	GID	Greeley, Nance, Valley	9 hr
Jan 24, 4:14 AM CST	Winter Storm Warning	GID	Adams, Buffalo, Clay, Dawson, Fillmore, Franklin and 18 more	45 hr

Nearby

Winter Weather Advisories in Nebraska, 2021 Every 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.