Alert archive / Nebraska / Special Weather Statements in 2017

Special Weather Statement, NWS North Platte, NE

July 30, 2017Hooker County, Nebraska

NWS North Platte, NE issued this special weather statement at Jul 30, 2017, 5:28 PM MDT for Hooker County, Nebraska. It was in force for 77 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 30, 2017, 5:28 PM MDT (23:28 UTC)
Expired: Jul 30, 2017, 6:45 PM MDT
In force: 77 min
Issued by: NWS North Platte, NE

County Hooker County, NE

The radar

The North Platte radar (KLNX), 22 km from the middle of the area, began a volume at 23:29 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 12:00Z, 11.5 hours before the alert went out and 111 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: 100 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 806 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 66 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 30, 5:23 PM MDT, 5 minutes earlier.

Area forecast discussion, Jul 30, 5:23 PM MDT, 5 minutes before

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Hazardous weather outlook, Jul 30, 2:09 PM MDT, 3 hours 19 minutes before

Hazardous Weather Outlook
National Weather Service North Platte NE
309 PM CDT Sun Jul 30 2017

NEZ004>010-022>029-035>038-056>059-069>071-094-312030-
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-
309 PM CDT Sun Jul 30 2017 /209 PM MDT Sun Jul 30 2017/

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

.DAY ONE...TONIGHT.

Isolated thunderstorms are possible this evening across western
and north central Nebraska roughly east of a line from cody to
Lisco. Storms that develop are expected to remain below severe
limits, however, they will be capable of producing heavy rain.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

Thunderstorms are possible at times through Thursday across
western and north central Nebraska. At this time, the threat for
severe storms is low, however, heavy rain is possible.

A more organized threat for thunderstorms exists Wednesday
afternoon and Wednesday night across the outlook area. A cold
front will push through the area Wednesday night. At this time,
the threat for severe storms is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

Get your weather, hydrological, and climate information at
http://www.weather.gov/northplatte

CLB

In the hours before

Local storm report, Jul 30, 4:18 PM MDT, 1 hour 10 minutes before

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Special weather statement, Jul 30, 4:30 PM MDT, 58 minutes before

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Local storm report, Jul 30, 4:43 PM MDT, 45 minutes before

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Special weather statement, Jul 30, 4:48 PM MDT, 40 minutes before

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Special weather statement, Jul 30, 5:17 PM MDT, 11 minutes before

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Special weather statement, Jul 30, 5:28 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
Jul 29, 6:04 PM MDT	Special Weather Statement	LBF	Keith	71 min
Jul 29, 6:20 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	40 min
Jul 29, 7:15 PM MDT	Special Weather Statement	LBF	Lincoln	75 min
Jul 29, 7:49 PM MDT	Areal Flood Advisory	LBF	Hayes	3 hr
Jul 29, 8:03 PM MDT	Areal Flood Advisory	LBF	Lincoln	117 min
Jul 29, 9:21 PM MDT	Special Weather Statement	LBF	Grant	69 min
Jul 29, 9:27 PM MDT	River Flood Advisory	LBF	Lincoln	36 hr
Jul 29, 10:33 PM MDT	Areal Flood Advisory	LBF	Hayes	3 hr
Jul 30, 3:25 PM MDT	Special Weather Statement	LBF	Keya Paha	80 min
Jul 30, 3:32 PM MDT	Special Weather Statement	LBF	Cherry	73 min
Jul 30, 3:35 PM MDT	Special Weather Statement	LBF	Arthur	70 min
Jul 30, 3:44 PM MDT	Special Weather Statement	LBF	Rock	76 min
Jul 30, 3:49 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Rock	41 min
Jul 30, 4:09 PM MDT	Special Weather Statement	LBF	Cherry	51 min
Jul 30, 4:15 PM MDT	Special Weather Statement	LBF	Brown	45 min
Jul 30, 4:30 PM MDT	Special Weather Statement	LBF	Deuel, Keith	45 min
Jul 30, 4:48 PM MDT	Special Weather Statement	LBF	Brown	42 min
Jul 30, 5:17 PM MDT	Special Weather Statement	LBF	Perkins	43 min
Jul 30, 5:58 PM MDT	Special Weather Statement	LBF	Chase, Perkins	62 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.