Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

April 6, 2021Boyd County, Nebraska

NWS North Platte, NE issued this special weather statement at Apr 6, 2021, 9:12 AM CDT for Boyd County, Nebraska. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 6, 2021, 9:12 AM CDT (14:12 UTC)
Expired: Apr 6, 2021, 10:00 AM CDT
In force: 48 min
Issued by: NWS North Platte, NE

County Boyd County, NE

The radar

The North Platte radar (KLNX), 162 km from the middle of the area, began a volume at 14:12 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, 2.2 hours before the alert went out and 236 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: 91 J/kg
Mixed-layer CIN: -649 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 6, 6:12 AM CDT, 3 hours earlier.

Area forecast discussion, Apr 6, 6:12 AM CDT, 3 hours before

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Hazardous weather outlook, Apr 6, 3:40 AM CDT, 5 hours 32 minutes before

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In the hours before

Special weather statement, Apr 6, 9:12 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 7:03 PM CDT	Severe Thunderstorm Warning	LBF	Holt	27 min
Apr 5, 7:42 PM CDT	Special Weather Statement	LBF	Garfield	48 min
Apr 5, 8:57 PM CDT	Special Weather Statement	LBF	Rock	33 min
Apr 6, 3:22 AM CDT	Winter Weather Advisory	LBF	Sheridan	31 hr
Apr 6, 5:45 PM CDT	Special Weather Statement	LBF	Custer	30 min
Apr 6, 6:12 PM CDT	Special Weather Statement	LBF	Custer	33 min
Apr 6, 6:28 PM CDT	Severe Thunderstorm Warning	LBF	Custer	32 min
Apr 6, 6:37 PM CDT	Special Weather Statement	LBF	Hooker	38 min
Apr 6, 6:49 PM CDT	Special Weather Statement	LBF	Logan, Thomas	41 min

Nearby

Special Weather Statements in Nebraska, 2021 Every special weather statement 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.