Alert archive / Nebraska / Special Weather Statements in 2023

Special Weather Statement, NWS North Platte, NE

August 5, 2023Lincoln County, Nebraska

NWS North Platte, NE issued this special weather statement at Aug 5, 2023, 7:16 PM CDT for Lincoln County, Nebraska. It was in force for 29 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 5, 2023, 7:16 PM CDT (00:16 UTC)
Expired
Aug 5, 2023, 7:45 PM CDT
In force
29 min
Issued by
NWS North Platte, NE
Hail
0.50 in
Wind
30

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 108 km from the middle of the area, began a volume at 00:15 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

Omaha, NE (KOAX), launched 00:00Z, 0.3 hours before the alert went out and 363 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, Omaha, NE at 00:00Z on 2023-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1774 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, Omaha, NE at 00:00Z on 2023-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 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
1774 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1305 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.5
Supercell composite
7.4

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS North Platte, NE wrote its last area forecast discussion before this special weather statement went out at Aug 5, 6:39 PM CDT, 37 minutes earlier.

Area forecast discussion, Aug 5, 6:39 PM CDT, 37 minutes before
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Hazardous weather outlook, Aug 5, 3:09 PM CDT, 4 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service North Platte NE
309 PM CDT Sat Aug 5 2023

NEZ004>010-022>029-035>038-056>059-069>071-094-062015-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant-
Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan-
Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
309 PM CDT Sat Aug 5 2023 /209 PM MDT Sat Aug 5 2023/

This Hazardous Weather Outlook is for portions of western and north
central Nebraska.

.DAY ONE...This afternoon and tonight.

A strong thunderstorm is possible mainly through early evening over
far southwestern Nebraska and portions of north central Nebraska,
mainly over Holt and Boyd counties. Hail up to quarters and some
gusty winds are possible. Elsewhere over the remainder of north
central Nebraska, thunderstorms are possible and should remain below
severe limits.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Periodic shower and thunderstorm chances persist Sunday through
Tuesday, primarily in the afternoon and evening. The severe weather
potential remains uncertain at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected.

In the hours before

Special weather statement, Aug 5, 4:13 PM CDT, 3 hours 3 minutes before
Special Weather Statement
National Weather Service North Platte NE
413 PM CDT Sat Aug 5 2023

NEZ006-008-009-052200-
Brown NE-Rock NE-Keya Paha NE-
413 PM CDT Sat Aug 5 2023

...A strong thunderstorm will impact portions of northwestern Rock,
northern Brown and central Keya Paha Counties through 500 PM CDT...

At 412 PM CDT, Doppler radar was tracking a strong thunderstorm near
Norden, or 14 miles west of Springview, moving east at 25 mph.

HAZARD...Winds in excess of 40 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...
Springview, Norden, Burton, Thomas Creek State Wildlife Management
Area, Bobcat State Wildlife Management Area, Meadville and North
River Trail.

This includes the following highways...
 Highway 183 between mile markers 205 and 221.
 Highway 12 between mile markers 26 and 67.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4271 10013 4289 10015 4296 9953 4269 9951
TIME...MOT...LOC 2112Z 266DEG 23KT 4281 10004

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

MBS
Special weather statement, Aug 5, 4:43 PM CDT, 2 hours 33 minutes before
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Special weather statement, Aug 5, 4:51 PM CDT, 2 hours 25 minutes before
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Special weather statement, Aug 5, 7:16 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 7:19 PM CDTSpecial Weather StatementLBFDawson26 min
Aug 5, 7:58 PM CDTSpecial Weather StatementLBFHayes17 min

Nearby

Special Weather Statements in Nebraska, 2023Every special weather statement in 2023

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.