Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

September 29, 2021Custer County, Loup County, Nebraska

NWS North Platte, NE issued this special weather statement at Sep 29, 2021, 9:19 PM CDT for Custer County, Loup County, Nebraska. It was in force for 41 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
Sep 29, 2021, 9:19 PM CDT (02:19 UTC)
Expired
Sep 29, 2021, 10:00 PM CDT
In force
41 min
Issued by
NWS North Platte, NE
Hail
0.00 in
Wind
40

Counties Custer County, NE, Loup County, NE

The radar

The North Platte radar (KLNX), 111 km from the middle of the area, began a volume at 02:22 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, 2.3 hours before the alert went out and 122 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 2021-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 803 joules per kilogram.LCLEL10008507005003002001001 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 2021-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
803 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1535 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

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 Sep 29, 8:01 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, Sep 29, 8:01 PM CDT, 1 hour 18 minutes before
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Hazardous weather outlook, Sep 29, 3:54 PM CDT, 5 hours 25 minutes before
Hazardous Weather Outlook
National Weather Service North Platte NE
354 PM CDT Wed Sep 29 2021

NEZ004>010-022>029-035>038-056>059-069>071-094-302100-
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-
354 PM CDT Wed Sep 29 2021 /254 PM MDT Wed Sep 29 2021/

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

.DAY ONE...TONIGHT.

Rain showers and thunderstorms will overspread much of western and
north central Nebraska through tonight. While severe weather is
not anticipated, stronger storms may be capable of gusty winds and
small hail. Periods of heavy rain may also lead to localized
flooding, primarily along and east of Highway 83.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

Get your weather, hydrological, and climate information at
http://www.weather.gov/northplatte

In the hours before

Local storm report, Sep 29, 7:27 PM CDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
727 PM CDT WED SEP 29 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0723 PM     HEAVY RAIN       NW SUTHERLAND           41.16N 101.13W
09/29/2021  M3.00 INCH       LINCOLN            NE   PUBLIC

            REPORT VIA SOCIAL MEDIA OF STORM TOTAL THIS EVENING OF 3
            INCHES.

&&

JACLYN.GOMEZ
Special weather statement, Sep 29, 7:31 PM CDT, 1 hour 48 minutes before
Special Weather Statement
National Weather Service North Platte NE
731 PM CDT Wed Sep 29 2021

NEZ037-038-059-300115-
Custer NE-Lincoln NE-Logan NE-
731 PM CDT Wed Sep 29 2021

...Strong thunderstorms will impact portions of eastern Lincoln,
southeastern Logan and western Custer Counties through 815 PM CDT...

At 731 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles northeast of Gandy to 9 miles north of
Brady to 10 miles north of Moorefield. Movement was east at 20 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Arnold, Callaway, Brady, Logan, Pleasant Hill, Etna, Hoagland,
Milldale, Jeffrey Canyon State Wildlife Management Area, Finchville,
Vroman and Lodi.

This includes the following highways...
 Highway 2 between mile markers 260 and 262.
 Highway 92 between mile markers 239 and 270.
 Interstate 80 in Nebraska between mile markers 196 and 207.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4077 10047 4116 10041 4159 10037 4161 9981
      4105 9987 4104 10023 4071 10023
TIME...MOT...LOC 0031Z 277DEG 18KT 4152 10030 4116 10034 4083 10038

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Taylor
Special weather statement, Sep 29, 7:35 PM CDT, 1 hour 44 minutes before
Special Weather Statement
National Weather Service North Platte NE
735 PM CDT Wed Sep 29 2021

NEZ037-038-059-300115-
Custer NE-Lincoln NE-Logan NE-
735 PM CDT Wed Sep 29 2021

...Strong thunderstorms will impact portions of northeastern Lincoln,
eastern Logan and western Custer Counties through 815 PM CDT...

At 735 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 10 miles northeast of Gandy to near Brady.
Movement was east at 30 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Arnold, Callaway, Brady, Logan, Etna, Milldale, Jeffrey Canyon State
Wildlife Management Area, Shanklin Bluff, Tarboz Lake, Pleasant Hill,
Hoagland, Brown Lake, Finchville and Vroman.

This includes the following highways...
 Highway 2 between mile markers 250 and 256.
 Highway 92 between mile markers 236 and 266.
 Interstate 80 in Nebraska between mile markers 195 and 208.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4166 10044 4172 9989 4105 9991 4105 10022
      4089 10023 4088 10046
TIME...MOT...LOC 0035Z 259DEG 25KT 4161 10037 4097 10039

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Taylor
Special weather statement, Sep 29, 8:34 PM CDT, 45 minutes before
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Local storm report, Sep 29, 9:08 PM CDT, 11 minutes before
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Special weather statement, Sep 29, 9:19 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
Sep 29, 7:05 PM CDTSpecial Weather StatementLBFLincoln40 min
Sep 29, 7:31 PM CDTSpecial Weather StatementLBFDawson44 min
Sep 29, 7:35 PM CDTSpecial Weather StatementLBFLogan40 min
Sep 29, 7:54 PM CDTAreal Flood AdvisoryLBFKeith, Lincoln5 hr
Sep 29, 8:34 PM CDTSpecial Weather StatementLBFFrontier41 min
Sep 29, 8:40 PM CDTAreal Flood AdvisoryLBFBlaine, Brown, Cherry, Logan, Thomas3 hr
Sep 29, 11:11 PM CDTAreal Flood AdvisoryLBFBlaine, Brown, Cherry, Custer, Logan, Rock and 1 more3 hr

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.