Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

July 17, 2021Garfield County, Wheeler County, Nebraska

NWS North Platte, NE issued this special weather statement at Jul 17, 2021, 2:13 AM CDT for Garfield County, Wheeler County, Nebraska. It was in force for 62 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 17, 2021, 2:13 AM CDT (07:13 UTC)
Expired: Jul 17, 2021, 3:15 AM CDT
In force: 62 min
Issued by: NWS North Platte, NE

Counties Garfield County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 151 km from the middle of the area, began a volume at 07:15 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, 7.2 hours before the alert went out and 166 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: 989 J/kg
Mixed-layer CIN: -136 J/kg
Mixed-layer LCL: 1785 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

As transmitted.

470 
WWUS83 KLBF 170713
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
213 AM CDT Sat Jul 17 2021
 
NEZ010-027>029-038-170815-
Wheeler NE-Loup NE-Holt NE-Custer NE-Garfield NE-
213 AM CDT Sat Jul 17 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LOUP...GARFIELD...
SOUTHWESTERN HOLT...NORTHEASTERN CUSTER AND WHEELER COUNTIES UNTIL
315 AM CDT...

At 212 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 11 miles south of Amelia to 8 miles south of
Comstock. Movement was southeast at 25 mph.

Wind gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Burwell, Sargent, Bartlett, Comstock, Ericson, Weissert, Virginia 
Smith Dam, Arcadia Diversion Dam, Buffalo Flats, Wescott, Kent 
Diversion Dam, Homestead Knolls Campground, Cumminsville, Four 
Corners, Pibel Lake, Big Oak Canyon, Deverre and Gables.

This includes the following highways...
 Highway 183 between mile markers 99 and 116.
 Highway 281 between mile markers 132 and 153.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4174 9834 4174 9921 4133 9920 4147 9951
      4209 9905 4200 9829 4181 9829
TIME...MOT...LOC 0712Z 293DEG 23KT 4207 9890 4145 9929 

$$

CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 7:46 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	59 min
Jul 16, 8:13 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	32 min
Jul 16, 8:42 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	63 min
Jul 16, 9:29 PM CDT	Special Weather Statement	LBF	Cherry	46 min
Jul 16, 9:44 PM CDT	Special Weather Statement	LBF	Sheridan	31 min
Jul 16, 10:13 PM CDT	Special Weather Statement	LBF	Cherry	62 min
Jul 16, 10:15 PM CDT	Special Weather Statement	LBF	Arthur, Grant, Hooker	60 min
Jul 16, 10:42 PM CDT	Special Weather Statement	LBF	Sheridan	33 min
Jul 16, 11:11 PM CDT	Special Weather Statement	LBF	Blaine, Brown, Logan, Thomas	64 min
Jul 16, 11:14 PM CDT	Special Weather Statement	LBF	Arthur, Keith, McPherson	61 min
Jul 16, 11:15 PM CDT	Special Weather Statement	LBF	Sheridan	60 min
Jul 16, 11:26 PM CDT	Special Weather Statement	LBF	Grant	49 min
Jul 17, 12:10 AM CDT	Special Weather Statement	LBF	Arthur	65 min
Jul 17, 12:12 AM CDT	Special Weather Statement	LBF	Blaine	63 min
Jul 17, 12:31 AM CDT	Special Weather Statement	LBF	Lincoln	44 min
Jul 17, 1:07 AM CDT	Special Weather Statement	LBF	Custer, Loup	38 min
Jul 17, 1:12 AM CDT	Special Weather Statement	LBF	Lincoln	63 min
Jul 17, 1:15 AM CDT	Special Weather Statement	LBF	Arthur	45 min
Jul 17, 2:11 AM CDT	Special Weather Statement	LBF	Frontier	64 min
Jul 17, 2:55 AM CDT	Areal Flood Advisory	LBF	Frontier	58 min

Nearby

Special Weather Statements in Nebraska, 2021 Every special weather statement in 2021

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.