Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

July 6, 2021Frontier County, Nebraska

NWS North Platte, NE issued this special weather statement at Jul 6, 2021, 6:23 PM CDT for Frontier County, Nebraska. It was in force for 37 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: Jul 6, 2021, 6:23 PM CDT (23:23 UTC)
Expired: Jul 6, 2021, 7:00 PM CDT
In force: 37 min
Issued by: NWS North Platte, NE

County Frontier County, NE

The radar

The Goodland radar (KGLD), 157 km from the middle of the area, began a volume at 23:26 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, 11.4 hours before the alert went out and 74 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: 688 J/kg
Mixed-layer CIN: -127 J/kg
Mixed-layer LCL: 1249 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 Jul 6, 4:01 PM CDT, 2 hours 22 minutes earlier.

Area forecast discussion, Jul 6, 4:01 PM CDT, 2 hours 22 minutes before

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Hazardous weather outlook, Jul 6, 3:23 PM CDT, 3 hours before

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In the hours before

Local storm report, Jul 6, 2:49 PM CDT, 3 hours 34 minutes before

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Local storm report, Jul 6, 4:31 PM CDT, 1 hour 52 minutes before

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Local storm report, Jul 6, 4:32 PM CDT, 1 hour 51 minutes before

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Local storm report, Jul 6, 4:54 PM CDT, 1 hour 29 minutes before

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Local storm report, Jul 6, 5:33 PM CDT, 50 minutes before

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Special weather statement, Jul 6, 6:23 PM 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
Jul 5, 8:21 PM CDT	Special Weather Statement	LBF	Sheridan	39 min
Jul 6, 11:42 AM CDT	Special Weather Statement	LBF	Lincoln	33 min
Jul 6, 12:37 PM CDT	Special Weather Statement	LBF	Custer	38 min
Jul 6, 12:47 PM CDT	Special Weather Statement	LBF	Custer	43 min
Jul 6, 12:57 PM CDT	Areal Flood Advisory	LBF	Custer	3 hr
Jul 6, 1:42 PM CDT	Areal Flood Advisory	LBF	Custer, Garfield, Wheeler	3 hr
Jul 6, 2:01 PM CDT	Areal Flood Warning	LBF	Custer	3 hr

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.