Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

August 9, 2021Hayes County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 9, 2021, 6:08 PM CDT for Hayes County, Nebraska. It was in force for 52 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 9, 2021, 6:08 PM CDT (23:08 UTC)
Expired: Aug 9, 2021, 7:00 PM CDT
In force: 52 min
Issued by: NWS North Platte, NE
Hail: 0.88 in
Wind: 50

County Hayes County, NE

The radar

The Goodland radar (KGLD), 150 km from the middle of the area, began a volume at 23:07 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, 11.1 hours before the alert went out and 69 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: 28 J/kg
Mixed-layer CIN: -619 J/kg
Mixed-layer LCL: 2573 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -78 m²/s²
0-3 km storm-relative helicity: -37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

123 
WWUS83 KLBF 092308
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
608 PM CDT Mon Aug 9 2021
 
NEZ059-070-071-100000-
Frontier NE-Hayes NE-Lincoln NE-
608 PM CDT Mon Aug 9 2021

...A strong thunderstorm will impact portions of northwestern
Frontier, south central Lincoln and northern Hayes Counties through
700 PM CDT...

At 608 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles northwest of Hayes Center, moving northeast at 15 mph.

HAZARD...Wind gusts up to 50 mph and nickel 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...
Marengo, Hayes Center State Wildlife Management Area and Somerset. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4047 10119 4064 10132 4087 10085 4063 10070
TIME...MOT...LOC 2308Z 236DEG 11KT 4061 10118 

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

$$

Buttler

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 5:09 PM CDT	Special Weather Statement	LBF	Frontier	36 min
Aug 9, 5:45 PM CDT	Special Weather Statement	LBF	Lincoln	45 min
Aug 9, 6:28 PM CDT	Special Weather Statement	LBF	Custer	47 min
Aug 9, 6:45 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Loup	45 min
Aug 9, 6:55 PM CDT	Special Weather Statement	LBF	Hayes	50 min
Aug 9, 6:59 PM CDT	Special Weather Statement	LBF	Custer	46 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.