Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

July 8, 2021Cherry County, Nebraska

NWS North Platte, NE issued this special weather statement at Jul 8, 2021, 8:39 PM MDT for Cherry County, Nebraska. It was in force for 21 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, 8:39 PM MDT (02:39 UTC)
Expired
Jul 8, 2021, 9:00 PM MDT
In force
21 min
Issued by
NWS North Platte, NE

County Cherry County, NE

The radar

The North Platte radar (KLNX), 84 km from the middle of the area, began a volume at 02:41 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, 2.7 hours before the alert went out and 172 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 2021-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 667 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2021-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 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
667 J/kg
Mixed-layer CIN
-169 J/kg
Mixed-layer LCL
3047 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
326 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.9

Open this sounding in Storm Lab

The text

As transmitted.

310 
WWUS83 KLBF 090239
SPSLBF

Special Weather Statement
National Weather Service North Platte NE
939 PM CDT Thu Jul 8 2021
 
NEZ005-094-090300-
Eastern Cherry NE-Western Cherry NE-
939 PM CDT Thu Jul 8 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CHERRY COUNTY UNTIL 1000
PM CDT/900 PM MDT/...

At 938 PM CDT/838 PM MDT/, Doppler radar was tracking a strong
thunderstorm 8 miles northwest of Merritt Reservoir, or 26 miles
southwest of Valentine, moving southeast at 50 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Merritt Reservoir and Steer Creek Campground. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If on or near Merritt Reservoir, get out of the water and move 
indoors or inside a vehicle. If you can hear thunder, you are close 
enough to be struck by lightning. Move to safe shelter now! Do not 
be caught on the water in a thunderstorm.

&&

LAT...LON 4271 10119 4281 10101 4259 10066 4243 10092
TIME...MOT...LOC 0238Z 311DEG 43KT 4270 10102 

$$

Snively

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 6:13 PM MDTSpecial Weather StatementLBFChase32 min
Jul 8, 8:16 PM MDTSpecial Weather StatementLBFCherry29 min
Jul 8, 8:34 PM MDTSpecial Weather StatementLBFCherry26 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.