Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

August 6, 2021Lincoln County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 6, 2021, 6:58 PM CDT for Lincoln 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 6, 2021, 6:58 PM CDT (23:58 UTC)
Expired
Aug 6, 2021, 7:45 PM CDT
In force
47 min
Issued by
NWS North Platte, NE
Hail
0.00 in
Wind
50

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 133 km from the middle of the area, began a volume at 00:00 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, 12.0 hours before the alert went out and 51 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2021-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2021-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
23 J/kg
Mixed-layer CIN
-582 J/kg
Mixed-layer LCL
2547 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

378 
WWUS83 KLBF 062358
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
658 PM CDT Fri Aug 6 2021
 
NEZ058-059-070045-
Perkins NE-Lincoln NE-
658 PM CDT Fri Aug 6 2021

...A strong thunderstorm will impact portions of eastern Perkins and
southwestern Lincoln Counties through 745 PM CDT/645 PM MDT/...

At 658 PM CDT/558 PM MDT/, Doppler radar was tracking a strong
thunderstorm near Dickens, or 22 miles north of Hayes Center, moving
east at 20 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Wallace, Wellfleet, Dickens and Somerset. 

This includes Highway 83 between mile markers 55 and 66.
 
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 4071 10124 4088 10125 4105 10083 4074 10067
TIME...MOT...LOC 2358Z 253DEG 19KT 4084 10105 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

$$

Roberg

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 7:25 PM CDTSpecial Weather StatementLBFSheridan50 min
Aug 6, 2:52 AM CDTRed Flag WarningLBFChase, Hayes, Lincoln, Perkins16 hr
Aug 6, 6:55 PM CDTSpecial Weather StatementLBFSheridan50 min

Nearby

Special Weather Statements in Nebraska, 2021Every 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.