Alert archive / Nebraska / Special Weather Statements in 2018

Special Weather Statement, NWS North Platte, NE

August 4, 2018Deuel County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 4, 2018, 3:53 PM MDT for Deuel County, Nebraska. It was in force for 52 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: Aug 4, 2018, 3:53 PM MDT (21:53 UTC)
Expired: Aug 4, 2018, 4:45 PM MDT
In force: 52 min
Issued by: NWS North Platte, NE

County Deuel County, NE

The radar

The North Platte radar (KLNX), 180 km from the middle of the area, began a volume at 21:55 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 (KDEN), launched 12:00Z, 9.9 hours before the alert went out and 154 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: 35 J/kg
Mixed-layer CIN: -244 J/kg
Mixed-layer LCL: 3055 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 134 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 Aug 4, 3:05 PM MDT, 48 minutes earlier.

Area forecast discussion, Aug 4, 3:05 PM MDT, 48 minutes before

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Hazardous weather outlook, Aug 4, 3:09 PM MDT, 44 minutes before

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In the hours before

Local storm report, Aug 4, 1:15 PM MDT, 2 hours 38 minutes before

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Local storm report, Aug 4, 1:30 PM MDT, 2 hours 23 minutes before

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Local storm report, Aug 4, 1:31 PM MDT, 2 hours 22 minutes before

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Local storm report, Aug 4, 2:14 PM MDT, 1 hour 39 minutes before

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Local storm report, Aug 4, 2:58 PM MDT, 55 minutes before

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Special weather statement, Aug 4, 3:53 PM MDT, 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
Aug 3, 6:06 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Rock	39 min
Aug 3, 6:33 PM MDT	Special Weather Statement	LBF	McPherson	42 min
Aug 3, 6:46 PM MDT	Special Weather Statement	LBF	Rock	44 min
Aug 3, 7:27 PM MDT	Special Weather Statement	LBF	Boyd	48 min
Aug 4, 5:38 PM MDT	Special Weather Statement	LBF	Lincoln	52 min

Nearby

Special Weather Statements in Nebraska, 2018 Every special weather statement in 2018

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.