Alert archive / Nebraska / Special Weather Statements in 2017

Special Weather Statement, NWS North Platte, NE

October 6, 2017Lincoln County, Nebraska

NWS North Platte, NE issued this special weather statement at Oct 6, 2017, 3:02 AM CDT for Lincoln County, Nebraska. It was in force for 43 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: Oct 6, 2017, 3:02 AM CDT (08:02 UTC)
Expired: Oct 6, 2017, 3:45 AM CDT
In force: 43 min
Issued by: NWS North Platte, NE

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 86 km from the middle of the area, began a volume at 08:06 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, 8.0 hours before the alert went out and 23 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: 810 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Oct 6, 12:20 AM CDT, 2 hours 42 minutes earlier.

Area forecast discussion, Oct 6, 12:20 AM CDT, 2 hours 42 minutes before

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Hazardous weather outlook, Oct 5, 2:33 PM CDT, 12 hours 29 minutes before

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In the hours before

Special weather statement, Oct 6, 3:02 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service North Platte NE
302 AM CDT FRI OCT 6 2017

NEZ059-060845-
Lincoln NE-
302 AM CDT FRI OCT 6 2017

...SPECIAL WEATHER STATEMENT...

At 301 AM CDT, Doppler radar was tracking a strong thunderstorm near
Hershey, or 10 miles northwest of North Platte, moving east at 25
mph.

Half inch hail will be possible with this storm.

Locations impacted include...
North Platte, Hershey and Birdwood.

This includes the following highways...
 Highway 97 between mile markers 1 and 12.
 Interstate 80 in Nebraska between mile markers 164 and 168.
 Highway 83 between mile markers 84 and 99.

LAT...LON 4112 10102 4128 10108 4139 10067 4117 10045
TIME...MOT...LOC 0801Z 260DEG 24KT 4120 10095

CDC

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 6, 3:33 AM CDT	Special Weather Statement	LBF	Logan	42 min
Oct 6, 3:59 AM CDT	Special Weather Statement	LBF	Logan	46 min
Oct 6, 4:05 AM CDT	Special Weather Statement	LBF	Logan	40 min
Oct 6, 4:25 AM CDT	Areal Flood Advisory	LBF	Custer	3 hr
Oct 6, 4:29 AM CDT	Special Weather Statement	LBF	Custer	46 min
Oct 6, 5:07 AM CDT	Special Weather Statement	LBF	Custer	38 min
Oct 6, 5:41 AM CDT	Special Weather Statement	LBF	Valley	19 min
Oct 6, 6:20 AM CDT	Special Weather Statement	LBF	Garfield	40 min
Oct 6, 6:56 AM CDT	Special Weather Statement	LBF	Wheeler	49 min
Oct 6, 7:13 AM CDT	Areal Flood Advisory	LBF	Custer	3 hr
Oct 6, 10:15 AM CDT	Areal Flood Advisory	LBF	Custer	3 hr
Oct 6, 3:50 PM CDT	Special Weather Statement	LBF	Lincoln	25 min
Oct 6, 4:16 PM CDT	Special Weather Statement	LBF	Lincoln	29 min
Oct 6, 4:35 PM CDT	Special Weather Statement	LBF	Logan	40 min
Oct 6, 5:05 PM CDT	Special Weather Statement	LBF	Custer	55 min
Oct 6, 5:11 PM CDT	Severe Thunderstorm Warning	LBF	Custer	35 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.