Alert archive / Nebraska / Special Weather Statements in 2023

Special Weather Statement, NWS North Platte, NE

August 7, 2023Sheridan County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 7, 2023, 8:01 PM MDT for Sheridan 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 outline as issued.

The facts

Issued: Aug 7, 2023, 8:01 PM MDT (02:01 UTC)
Expired: Aug 7, 2023, 8:45 PM MDT
In force: 44 min
Issued by: NWS North Platte, NE
Hail: 0.75 in
Wind: 40

County Sheridan County, NE

The radar

The North Platte radar (KLNX), 174 km from the middle of the area, began a volume at 02:00 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, 2.0 hours before the alert went out and 211 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: 418 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 1080 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 123 m²/s²
0-3 km storm-relative helicity: 342 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 6.2

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 Aug 7, 5:41 PM MDT, 2 hours 20 minutes earlier.

Area forecast discussion, Aug 7, 5:41 PM MDT, 2 hours 20 minutes before

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Hazardous weather outlook, Aug 7, 9:05 AM MDT, 10 hours 56 minutes before

Hazardous Weather Outlook
National Weather Service North Platte NE
1005 AM CDT Mon Aug 7 2023

NEZ004>010-022>029-035>038-056>059-069>071-094-081515-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant-
Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan-
Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
1005 AM CDT Mon Aug 7 2023 /905 AM MDT Mon Aug 7 2023/

This Hazardous Weather Outlook is for portions of western and north
central Nebraska.

.DAY ONE...Today and tonight.

Scattered strong to severe thunderstorms are possible across the
area this afternoon into the evening, especially across the southern
Panhandle and southwest Nebraska. These storms will be capable of
producing large to very large hail (two inch diameter or larger) and
damaging wind. A tornado or two cannot be ruled out, however, the
greatest tornado threat area remains limited to the southern
Panhandle and southwest Nebraska.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Scattered severe thunderstorms are possible across much of western
and north central Nebraska again Tuesday afternoon into the evening.
Large to very large hail (two inch diameter or larger), damaging
winds and locally heavy rainfall are the primary threats. However, a
couple of tornadoes cannot be ruled out for areas across the southern
Panhandle into southwest Nebraska. As the severe storms track south
and east into portions of central/north central Nebraska through the
evening, thunderstorms may form a complex with an increased threat
for damaging winds through the late evening into the night.

Outside of any lingering showers and embedded thunderstorms from
Tuesday's activity on Wednesday morning, the bulk of the day on
Wednesday appears to remain dry. However, sporadic scattered
precipitation chances quickly return in the afternoon/evening hours
for each day beginning Thursday into the weekend. At this time, the
severe threat during this period remains uncertain.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report hail of any size, damaging
thunderstorm wind gusts as well as flooding.

In the hours before

Local storm report, Aug 7, 7:20 PM MDT, 41 minutes before

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Local storm report, Aug 7, 7:38 PM MDT, 23 minutes before

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Local storm report, Aug 7, 7:41 PM MDT, 20 minutes before

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Special weather statement, Aug 7, 7:42 PM MDT, 19 minutes before

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Special weather statement, Aug 7, 7:58 PM MDT, 3 minutes before

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Special weather statement, Aug 7, 8:01 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 7, 6:02 PM MDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Arthur, Grant, McPherson	43 min
Aug 7, 6:30 PM MDT	Special Weather Statement	LBF	Keith	30 min
Aug 7, 6:41 PM MDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Sheridan	49 min
Aug 7, 7:00 PM MDT	Special Weather Statement	LBF	Keith	45 min
Aug 7, 7:16 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	44 min
Aug 7, 7:18 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, Perkins	42 min
Aug 7, 7:40 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	50 min
Aug 7, 7:42 PM MDT	Special Weather Statement	LBF	Lincoln	48 min
Aug 7, 7:52 PM MDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Chase, Hayes, Lincoln, Perkins	38 min
Aug 7, 7:58 PM MDT	Special Weather Statement	LBF	Sheridan	47 min
Aug 7, 8:26 PM MDT	Areal Flood Advisory	LBF	Custer, Lincoln	57 min
Aug 7, 8:29 PM MDT	Special Weather Statement	LBF	Lincoln	46 min
Aug 8, 3:39 PM MDT	Special Weather Statement	LBF	Garden	51 min
Aug 8, 3:50 PM MDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Garden, Sheridan	40 min
Aug 8, 4:25 PM MDT	Areal Flood Advisory	LBF	Garden, Sheridan	3 hr
Aug 8, 4:28 PM MDT	Severe Thunderstorm Warning	LBF	Garden	47 min
Aug 8, 4:32 PM MDT	Special Weather Statement	LBF	Sheridan	43 min
Aug 8, 5:01 PM MDT	Areal Flood Advisory	LBF	Garden, Sheridan	2 hr
Aug 8, 5:10 PM MDT	Severe Thunderstorm Warning	LBF	Garden	50 min
Aug 8, 5:18 PM MDT	Special Weather Statement	LBF	Sheridan	42 min
Aug 8, 5:19 PM MDT	Special Weather Statement	LBF	Deuel	26 min
Aug 8, 5:58 PM MDT	Special Weather Statement	LBF	Sheridan	47 min

Nearby

Special Weather Statements in Nebraska, 2023 Every special weather statement 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.