Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

July 8, 2021Chase County, Nebraska

NWS North Platte, NE issued this special weather statement at Jul 8, 2021, 6:13 PM MDT for Chase County, Nebraska. It was in force for 32 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
Jul 8, 2021, 6:13 PM MDT (00:13 UTC)
Expired
Jul 8, 2021, 6:45 PM MDT
In force
32 min
Issued by
NWS North Platte, NE

County Chase County, NE

The radar

The Goodland radar (KGLD), 122 km from the middle of the area, began a volume at 00:16 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

Denver, CO (KDNR), launched 00:00Z, 0.2 hours before the alert went out and 123 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, Denver, CO at 00:00Z on 2021-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 468 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2021-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
468 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
3626 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

613 
WWUS83 KLBF 090013
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
613 PM MDT Thu Jul 8 2021
 
NEZ069-090045-
Chase NE-
613 PM MDT Thu Jul 8 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CHASE COUNTY UNTIL
645 PM MDT...

At 613 PM MDT, Doppler radar was tracking a strong thunderstorm 9
miles south of Pleasant Valley, or 11 miles southeast of Holyoke,
moving southeast at 30 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

This storm will remain over mainly rural areas of southwestern Chase
County.

LAT...LON 4053 10205 4035 10183 4035 10205
TIME...MOT...LOC 0013Z 318DEG 28KT 4047 10214 

$$

Snively

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 8:16 PM MDTSpecial Weather StatementLBFCherry29 min
Jul 8, 8:34 PM MDTSpecial Weather StatementLBFCherry26 min
Jul 8, 8:39 PM MDTSpecial Weather StatementLBFCherry21 min
Jul 8, 8:58 PM MDTSpecial Weather StatementLBFCherry32 min
Jul 8, 9:25 PM MDTSpecial Weather StatementLBFCherry35 min
Jul 8, 9:33 PM MDTSpecial Weather StatementLBFBlaine27 min
Jul 9, 12:19 AM MDTSpecial Weather StatementLBFCherry41 min
Jul 9, 1:32 AM MDTSpecial Weather StatementLBFCherry43 min
Jul 9, 1:56 AM MDTSpecial Weather StatementLBFCherry49 min
Jul 9, 2:43 AM MDTSpecial Weather StatementLBFThomas47 min
Jul 9, 5:19 PM MDTSevere Thunderstorm WarningLBFGarden, Sheridan41 min
Jul 9, 5:44 PM MDTSpecial Weather StatementLBFGarden31 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.