Alert archive / Nebraska / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 308, NWS North Platte, NE

August 9, 2023Arthur County, Keith County, McPherson County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 9, 2023, 12:16 AM MDT for Arthur County, Keith County, McPherson County, Nebraska. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 9, 2023, 12:16 AM MDT (06:16 UTC)
Expired: Aug 9, 2023, 1:00 AM MDT
In force: 44 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Arthur County, NE, Keith County, NE, McPherson County, NE

The radar

The North Platte radar (KLNX), 94 km from the middle of the area, began a volume at 06:15 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 00:00Z, 6.3 hours before the alert went out and 81 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: 1804 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1179 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 8, 11:05 PM MDT, 1 hour 11 minutes earlier.

Area forecast discussion, Aug 8, 11:05 PM MDT, 1 hour 11 minutes before

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Hazardous weather outlook, Aug 8, 6:22 PM MDT, 5 hours 54 minutes before

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In the hours before

Local storm report, Aug 8, 9:55 PM MDT, 2 hours 21 minutes before

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Special weather statement, Aug 8, 10:09 PM MDT, 2 hours 7 minutes before

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Special weather statement, Aug 8, 10:23 PM MDT, 1 hour 53 minutes before

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Special weather statement, Aug 8, 11:16 PM MDT, 1 hour before

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Special weather statement, Aug 8, 11:58 PM MDT, 18 minutes before

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Special weather statement, Aug 9, 12:10 AM MDT, 6 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 8, 6:27 PM MDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Cherry, Sheridan	48 min
Aug 8, 6:52 PM MDT	Areal Flood Advisory	LBF	Arthur, McPherson	102 min
Aug 8, 8:19 PM MDT	Special Weather Statement	LBF	Lincoln	41 min
Aug 8, 8:44 PM MDT	Special Weather Statement	LBF	Dawson	46 min
Aug 8, 10:09 PM MDT	Special Weather Statement	LBF	Garden	51 min
Aug 8, 10:23 PM MDT	Special Weather Statement	LBF	Perkins	52 min
Aug 8, 10:28 PM MDT	Severe Thunderstorm Warning	LBF	Garden	47 min
Aug 8, 10:31 PM MDT	Severe Thunderstorm Warning	LBF	Perkins	21 min
Aug 8, 10:57 PM MDT	Areal Flood Advisory	LBF	Garden	2 hr
Aug 8, 11:16 PM MDT	Special Weather Statement	LBF	Arthur	44 min
Aug 8, 11:58 PM MDT	Special Weather Statement	LBF	Keith	47 min
Aug 9, 12:10 AM MDT	Special Weather Statement	LBF	Keith	50 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2023 Every severe thunderstorm warning in 2023

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.