Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

October 19, 2021Garfield County, Nebraska

NWS North Platte, NE issued this special weather statement at Oct 19, 2021, 9:30 PM CDT for Garfield County, Nebraska. It was in force for 60 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
Oct 19, 2021, 9:30 PM CDT (02:30 UTC)
Expired
Oct 19, 2021, 10:30 PM CDT
In force
60 min
Issued by
NWS North Platte, NE
Hail
0.50 in
Wind
55

County Garfield County, NE

The radar

The North Platte radar (KLNX), 131 km from the middle of the area, began a volume at 02:32 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, 2.5 hours before the alert went out and 162 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 00:00Z on 2021-10-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 116 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 00:00Z on 2021-10-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.19395878Sfc1 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
116 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
1615 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
221 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

728 
WWUS83 KLBF 200230
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
930 PM CDT Tue Oct 19 2021
 
NEZ010-028-029-200330-
Wheeler NE-Holt NE-Garfield NE-
930 PM CDT Tue Oct 19 2021

...A strong thunderstorm will impact portions of Garfield,
southwestern Holt and northwestern Wheeler Counties through 1030 PM
CDT...

At 930 PM CDT, Doppler radar was tracking a strong thunderstorm near
Calamus Reservoir State Recreation Area, or near Taylor, moving
northeast at 35 mph.

HAZARD...Wind gusts of 50 to 55 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...
Burwell, Chambers, Amelia, Sunfish Lake, Virginia Smith Dam, Buffalo
Flats, Deverre, Carson Lake and Gables.

This includes Highway 281 between mile markers 155 and 166.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4173 9911 4174 9921 4218 9921 4243 9868
      4191 9861
TIME...MOT...LOC 0230Z 226DEG 30KT 4183 9929 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

$$

CDC

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 19, 8:58 PM CDTSpecial Weather StatementLBFLoup47 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.