Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

August 26, 2021Custer County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 26, 2021, 9:13 PM CDT for Custer County, Nebraska. It was in force for 47 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: Aug 26, 2021, 9:13 PM CDT (02:13 UTC)
Expired: Aug 26, 2021, 10:00 PM CDT
In force: 47 min
Issued by: NWS North Platte, NE
Hail: 0.50 in
Wind: 30

County Custer County, NE

The radar

The North Platte radar (KLNX), 121 km from the middle of the area, began a volume at 02:15 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, 2.2 hours before the alert went out and 104 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: 2762 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 1515 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 383 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 29.2

Open this sounding in Storm Lab

The text

As transmitted.

661 
WWUS83 KLBF 270213
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
913 PM CDT Thu Aug 26 2021
 
NEZ038-270300-
Custer NE-
913 PM CDT Thu Aug 26 2021

...A strong thunderstorm will impact portions of southeastern Custer
County through 1000 PM CDT...

At 913 PM CDT, Doppler radar was tracking a strong thunderstorm near
Weissert, or 15 miles east of Broken Bow, moving northeast at 35 mph.

HAZARD...Winds in excess of 30 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Ansley, Comstock, Berwyn, Weissert, Westerville, Buckeye, Arcadia
Diversion Dam State Wildlife Management Area and Wescott.

This includes the following highways...
 Highway 183 between mile markers 87 and 105.
 Highway 2 between mile markers 282 and 297.
 Highway 92 between mile markers 300 and 301.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4113 9958 4134 9969 4160 9921 4140 9921
      4139 9920 4136 9920
TIME...MOT...LOC 0213Z 236DEG 30KT 4141 9935 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH

$$

Roberg

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 7:09 PM CDT	Special Weather Statement	LBF	Hayes	51 min
Aug 26, 7:38 PM CDT	Special Weather Statement	LBF	Lincoln	52 min
Aug 26, 7:44 PM CDT	Special Weather Statement	LBF	Garfield	46 min
Aug 26, 8:11 PM CDT	Special Weather Statement	LBF	Lincoln	19 min
Aug 26, 8:25 PM CDT	Special Weather Statement	LBF	Logan	50 min
Aug 26, 8:27 PM CDT	Special Weather Statement	LBF	Garfield, Wheeler	48 min
Aug 26, 8:31 PM CDT	Special Weather Statement	LBF	Custer	44 min
Aug 26, 9:17 PM CDT	Special Weather Statement	LBF	Rock	43 min
Aug 26, 9:18 PM CDT	Special Weather Statement	LBF	Wheeler	42 min
Aug 26, 9:34 PM CDT	Special Weather Statement	LBF	Holt	26 min
Aug 26, 9:55 PM CDT	Special Weather Statement	LBF	Rock	35 min
Aug 26, 10:09 PM CDT	Special Weather Statement	LBF	Wheeler	36 min
Aug 26, 10:11 PM CDT	Special Weather Statement	LBF	Wheeler	19 min
Aug 26, 10:20 PM CDT	Special Weather Statement	LBF	Brown	40 min
Aug 26, 10:41 PM CDT	Special Weather Statement	LBF	Brown	49 min
Aug 26, 10:54 PM CDT	Special Weather Statement	LBF	Wheeler	51 min
Aug 26, 11:11 PM CDT	Special Weather Statement	LBF	Sheridan	49 min
Aug 26, 11:55 PM CDT	Special Weather Statement	LBF	Sheridan	50 min
Aug 27, 12:43 AM CDT	Special Weather Statement	LBF	Sheridan	47 min
Aug 27, 6:36 AM CDT	Special Weather Statement	LBF	Keya Paha	39 min
Aug 27, 7:15 AM CDT	Special Weather Statement	LBF	Boyd	45 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.