Alert archive / Nebraska / Special Weather Statements in 2018

Special Weather Statement, NWS North Platte, NE

June 30, 2018McPherson County, Nebraska

NWS North Platte, NE issued this special weather statement at Jun 30, 2018, 6:11 AM CDT for McPherson County, Nebraska. It was in force for 49 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: Jun 30, 2018, 6:11 AM CDT (11:11 UTC)
Expired: Jun 30, 2018, 7:00 AM CDT
In force: 49 min
Issued by: NWS North Platte, NE

County McPherson County, NE

The radar

The North Platte radar (KLNX), 66 km from the middle of the area, began a volume at 11:13 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, 11.2 hours before the alert went out and 55 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: 4631 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1283 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.3

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 Jun 30, 3:47 AM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, Jun 30, 3:47 AM CDT, 2 hours 24 minutes before

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Hazardous weather outlook, Jun 30, 5:02 AM CDT, 1 hour 9 minutes before

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In the hours before

Special weather statement, Jun 30, 4:28 AM CDT, 1 hour 43 minutes before

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Special weather statement, Jun 30, 4:31 AM CDT, 1 hour 40 minutes before

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Special weather statement, Jun 30, 4:47 AM CDT, 1 hour 24 minutes before

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Special weather statement, Jun 30, 4:50 AM CDT, 1 hour 21 minutes before

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Special weather statement, Jun 30, 5:31 AM CDT, 40 minutes before

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Special weather statement, Jun 30, 6:11 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
Jun 29, 8:41 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	49 min
Jun 29, 9:06 PM CDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	24 min
Jun 29, 9:25 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	33 min
Jun 29, 9:27 PM CDT	Special Weather Statement	LBF	Sheridan	33 min
Jun 29, 9:31 PM CDT	Special Weather Statement	LBF	Sheridan	29 min
Jun 29, 9:49 PM CDT	Special Weather Statement	LBF	Sheridan	26 min
Jun 29, 10:42 PM CDT	Special Weather Statement	LBF	Cherry	33 min
Jun 29, 11:35 PM CDT	Special Weather Statement	LBF	Arthur	40 min
Jun 29, 11:48 PM CDT	Special Weather Statement	LBF	Blaine, Hooker, Loup, Thomas	27 min
Jun 30, 12:17 AM CDT	Special Weather Statement	LBF	Arthur, Blaine, Garden, Grant, Hooker, Loup and 2 more	43 min
Jun 30, 12:56 AM CDT	Special Weather Statement	LBF	Arthur, Blaine, Garden, Garfield, Grant, Hooker and 2 more	49 min
Jun 30, 1:26 AM CDT	Special Weather Statement	LBF	Wheeler	49 min
Jun 30, 1:40 AM CDT	Special Weather Statement	LBF	Blaine	50 min
Jun 30, 1:42 AM CDT	Special Weather Statement	LBF	Grant	48 min
Jun 30, 1:50 AM CDT	Severe Thunderstorm Warning	LBF	Holt	40 min
Jun 30, 2:27 AM CDT	Special Weather Statement	LBF	Grant	48 min
Jun 30, 3:08 AM CDT	Special Weather Statement	LBF	Hooker	37 min
Jun 30, 3:46 AM CDT	Special Weather Statement	LBF	Frontier, Hayes	44 min
Jun 30, 4:23 AM CDT	Special Weather Statement	LBF	Keith	22 min
Jun 30, 4:28 AM CDT	Special Weather Statement	LBF	Cherry	47 min
Jun 30, 4:31 AM CDT	Special Weather Statement	LBF	Frontier	44 min
Jun 30, 4:47 AM CDT	Special Weather Statement	LBF	Arthur, Grant	43 min
Jun 30, 4:50 AM CDT	Special Weather Statement	LBF	Keith	40 min
Jun 30, 5:31 AM CDT	Special Weather Statement	LBF	McPherson	44 min
Jun 30, 3:57 PM CDT	Special Weather Statement	LBF	Frontier	33 min
Jun 30, 5:28 PM CDT	Special Weather Statement	LBF	Garden	47 min
Jun 30, 5:34 PM CDT	Severe Thunderstorm Warning	LBF	Deuel, Garden	41 min
Jun 30, 6:14 PM CDT	Special Weather Statement	LBF	Arthur, Grant	46 min
Jun 30, 6:25 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Grant, Keith, McPherson, Perkins	50 min
Jun 30, 6:57 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Grant, Hooker, Keith, Lincoln, Logan and 2 more	48 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.