Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

August 5, 2021Sheridan County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 5, 2021, 6:25 PM MDT for Sheridan County, Nebraska. It was in force for 50 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 5, 2021, 6:25 PM MDT (00:25 UTC)
Expired: Aug 5, 2021, 7:15 PM MDT
In force: 50 min
Issued by: NWS North Platte, NE
Hail: 0.00 in
Wind: 55

County Sheridan County, NE

The radar

The North Platte radar (KLNX), 158 km from the middle of the area, began a volume at 00:28 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

Rapid City, SD (KUNR), launched 00:00Z, 0.4 hours before the alert went out and 165 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: 161 J/kg
Mixed-layer CIN: -175 J/kg
Mixed-layer LCL: 2783 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

922 
WWUS83 KLBF 060025
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
625 PM MDT Thu Aug 5 2021
 
NEZ004-094-060115-
Sheridan NE-Western Cherry NE-
625 PM MDT Thu Aug 5 2021

...Strong thunderstorms will impact portions of northwestern Cherry
and Sheridan Counties through 715 PM MDT...

At 625 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles northwest of Gordon to 12 miles east of
Wild Horse Butte. Movement was east at 40 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Gordon, Rushville, Clinton, Watson Lake, Intersection of Highway 87
and Craven Creek Road, Billys Lake, Lone Butte, Irwin, Intersection
of Highway 87 and Larabee Road, Highway 27 crossing the Niobrara
River.

This includes the following highways...
 Highway 20 between mile markers 81 and 119.
 Highway 250 between mile markers 10 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4300 10188 4213 10211 4221 10273 4298 10262
TIME...MOT...LOC 0025Z 286DEG 36KT 4292 10227 4227 10260 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

$$

Roberg

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 1:52 AM MDT	Red Flag Warning	LBF	Chase, Hayes, Lincoln, Perkins	16 hr
Aug 6, 5:55 PM MDT	Special Weather Statement	LBF	Sheridan	50 min
Aug 6, 5:58 PM MDT	Special Weather Statement	LBF	Lincoln	47 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.