Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

September 29, 2021Frontier County, Nebraska

NWS North Platte, NE issued this special weather statement at Sep 29, 2021, 8:34 PM CDT for Frontier 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, 8:34 PM CDT (01:34 UTC)
Expired: Sep 29, 2021, 9:15 PM CDT
In force: 41 min
Issued by: NWS North Platte, NE
Hail: 0.00 in
Wind: 40

County Frontier County, NE

The radar

The Grand Island radar (KUEX), 155 km from the middle of the area, began a volume at 01:34 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, 1.6 hours before the alert went out and 74 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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, 33 minutes earlier.

Area forecast discussion, Sep 29, 8:01 PM CDT, 33 minutes before

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Hazardous weather outlook, Sep 29, 3:54 PM CDT, 4 hours 40 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

Special weather statement, Sep 29, 4:31 PM CDT, 4 hours 3 minutes before

Special Weather Statement
National Weather Service North Platte NE
431 PM CDT Wed Sep 29 2021

NEZ035-036-057-059-292215-
Arthur NE-McPherson NE-Lincoln NE-Keith NE-
431 PM CDT Wed Sep 29 2021

...A strong thunderstorm will impact portions of southeastern Arthur,
northeastern Keith, northwestern Lincoln and southwestern McPherson
Counties through 515 PM CDT/415 PM MDT/...

At 431 PM CDT/331 PM MDT/, Doppler radar was tracking a strong
thunderstorm 9 miles northeast of Keystone, or 18 miles northeast of
Ogallala, moving northeast at 10 mph.

HAZARD...Winds in excess of 40 mph and nickel 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...
Bucktail Lake and Big Bald Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4120 10144 4133 10161 4155 10139 4135 10114
TIME...MOT...LOC 2131Z 226DEG 8KT 4132 10146

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

Taylor

Special weather statement, Sep 29, 7:05 PM CDT, 1 hour 29 minutes before

Special Weather Statement
National Weather Service North Platte NE
705 PM CDT Wed Sep 29 2021

NEZ036-037-059-300045-
McPherson NE-Lincoln NE-Logan NE-
705 PM CDT Wed Sep 29 2021

...Strong thunderstorms will impact portions of eastern Lincoln,
southern Logan and southeastern McPherson Counties through 745 PM
CDT...

At 705 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles south of Ringgold to North Platte to 10
miles south of Lake Maloney State Recreation Area. Movement was
northeast at 35 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...
North Platte, Brady, Maxwell, Wellfleet, Gandy, Lake Maloney State
Recreation Area, North Platte Airport, Keith, Cottonwood Canyon State
Wildlife Management Area, Hansen Memorial Reserve State Wildlife
Management Area and Jeffrey Canyon State Wildlife Management Area.

This includes the following highways...
 Highway 92 between mile markers 233 and 245.
 Highway 97 between mile markers 1 and 5.
 Interstate 80 in Nebraska between mile markers 175 and 206.
 Highway 83 between mile markers 53 and 111.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4145 10081 4148 10027 4071 10024 4071 10084
TIME...MOT...LOC 0005Z 235DEG 30KT 4138 10075 4116 10076 4089 10078

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

Taylor

Local storm report, Sep 29, 7:27 PM CDT, 1 hour 7 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 3 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, 59 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, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 29, 7:05 PM CDT	Special Weather Statement	LBF	Lincoln	40 min
Sep 29, 7:31 PM CDT	Special Weather Statement	LBF	Dawson	44 min
Sep 29, 7:35 PM CDT	Special Weather Statement	LBF	Logan	40 min
Sep 29, 7:54 PM CDT	Areal Flood Advisory	LBF	Keith, Lincoln	5 hr
Sep 29, 8:40 PM CDT	Areal Flood Advisory	LBF	Blaine, Brown, Cherry, Logan, Thomas	3 hr
Sep 29, 9:19 PM CDT	Special Weather Statement	LBF	Custer, Loup	41 min
Sep 29, 11:11 PM CDT	Areal Flood Advisory	LBF	Blaine, Brown, Cherry, Custer, Logan, Rock and 1 more	3 hr

Nearby

Special Weather Statements in Nebraska, 2021 Every 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.