Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

September 1, 2021Sheridan County, Nebraska

NWS North Platte, NE issued this special weather statement at Sep 1, 2021, 9:13 PM MDT for Sheridan 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: Sep 1, 2021, 9:13 PM MDT (03:13 UTC)
Expired: Sep 1, 2021, 10:00 PM MDT
In force: 47 min
Issued by: NWS North Platte, NE
Hail: 0.25 in
Wind: 55

County Sheridan County, NE

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 3.2 hours before the alert went out and 145 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: 549 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1203 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -34 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.7

Open this sounding in Storm Lab

The text

As transmitted.

059 
WWUS83 KLBF 020313
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
913 PM MDT Wed Sep 1 2021
 
NEZ004-094-020400-
Sheridan NE-Western Cherry NE-
913 PM MDT Wed Sep 1 2021

...Strong thunderstorms will impact portions of northwestern Cherry
and northern Sheridan Counties through 1000 PM MDT...

At 912 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles northeast of Hay Springs to 22 miles
south of Rushville. Movement was north at 40 mph.

HAZARD...Wind gusts of 50 to 55 mph and pea size 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...
Gordon, Rushville, White Clay, Clinton, Lone Butte, Irwin, Mount 
Maria, Highway 250 crossing the Niobrara River, Shell Lake, Pine 
Ridge and Hoover Lake.

This includes the following highways...
 Highway 20 between mile markers 83 and 116.
 Highway 250 between mile markers 30 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

A Severe Thunderstorm Watch remains in effect until midnight MDT for
the Panhandle of and north central Nebraska.

&&

LAT...LON 4300 10257 4298 10185 4233 10236 4276 10267
TIME...MOT...LOC 0312Z 184DEG 33KT 4278 10262 4240 10236 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

$$

CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 6:09 PM MDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	28 min
Sep 1, 6:38 PM MDT	Special Weather Statement	LBF	Sheridan	52 min
Sep 1, 7:21 PM MDT	Special Weather Statement	LBF	Sheridan	54 min
Sep 1, 7:48 PM MDT	Special Weather Statement	LBF	Hayes	42 min
Sep 1, 8:30 PM MDT	Special Weather Statement	LBF	Sheridan	45 min
Sep 1, 9:08 PM MDT	Special Weather Statement	LBF	Garden	52 min
Sep 1, 9:27 PM MDT	Special Weather Statement	LBF	Sheridan	33 min
Sep 1, 9:42 PM MDT	Special Weather Statement	LBF	Arthur	18 min
Sep 1, 9:46 PM MDT	Areal Flood Advisory	LBF	Cherry, Garden, Sheridan	3 hr
Sep 1, 9:55 PM MDT	Special Weather Statement	LBF	Sheridan	65 min
Sep 1, 9:59 PM MDT	Special Weather Statement	LBF	Arthur, Grant	61 min
Sep 1, 10:30 PM MDT	Severe Thunderstorm Warning Considerable damage threat	LBF	Cherry, Sheridan	45 min
Sep 1, 10:42 PM MDT	Special Weather Statement	LBF	Arthur	18 min
Sep 1, 11:08 PM MDT	Areal Flood Advisory	LBF	Arthur, Deuel, Garden, Keith, Perkins	3 hr
Sep 1, 11:45 PM MDT	Special Weather Statement	LBF	Arthur	45 min
Sep 1, 11:59 PM MDT	Special Weather Statement	LBF	Logan	46 min
Sep 2, 3:58 PM MDT	Special Weather Statement	LBF	Valley	32 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.