Alert archive / Nebraska / Special Weather Statements in 2017

Special Weather Statement, NWS North Platte, NE

July 28, 2017Hayes County, Nebraska

NWS North Platte, NE issued this special weather statement at Jul 28, 2017, 4:38 AM CDT for Hayes County, Nebraska. It was in force for 67 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 28, 2017, 4:38 AM CDT (09:38 UTC)
Expired: Jul 28, 2017, 5:45 AM CDT
In force: 67 min
Issued by: NWS North Platte, NE

County Hayes County, NE

The radar

The Goodland radar (KGLD), 135 km from the middle of the area, began a volume at 09:42 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, 9.6 hours before the alert went out and 88 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2606 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 29 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 Jul 28, 3:34 AM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Jul 28, 3:34 AM CDT, 1 hour 4 minutes before

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Hazardous weather outlook, Jul 28, 4:33 AM CDT, 5 minutes before

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In the hours before

Special weather statement, Jul 28, 2:59 AM CDT, 1 hour 39 minutes before

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Special weather statement, Jul 28, 3:43 AM CDT, 55 minutes before

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Special weather statement, Jul 28, 4:38 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
Jul 27, 7:22 PM CDT	Severe Thunderstorm Warning	LBF	Garden	53 min
Jul 27, 8:15 PM CDT	Special Weather Statement	LBF	Garden	45 min
Jul 28, 2:59 AM CDT	Special Weather Statement	LBF	Deuel, Keith	46 min
Jul 28, 3:43 AM CDT	Special Weather Statement	LBF	Chase, Perkins	47 min

Nearby

Special Weather Statements in Nebraska, 2017 Every special weather statement in 2017

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.