Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

September 17, 2021Frontier County, Nebraska

NWS North Platte, NE issued this special weather statement at Sep 17, 2021, 1:30 AM CDT for Frontier County, Nebraska. It was in force for 45 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 17, 2021, 1:30 AM CDT (06:30 UTC)
Expired: Sep 17, 2021, 2:15 AM CDT
In force: 45 min
Issued by: NWS North Platte, NE
Hail: 0.25 in
Wind: 40

County Frontier County, NE

The radar

The North Platte radar (KLNX), 124 km from the middle of the area, began a volume at 06:34 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, 6.5 hours before the alert went out and 34 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: 1601 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 2561 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.7

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 17, 12:46 AM CDT, 44 minutes earlier.

Area forecast discussion, Sep 17, 12:46 AM CDT, 44 minutes before

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Hazardous weather outlook, Sep 16, 3:27 PM CDT, 10 hours 3 minutes before

Hazardous Weather Outlook
National Weather Service North Platte NE
327 PM CDT Thu Sep 16 2021

NEZ004>010-022>029-035>038-056>059-069>071-094-172030-
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-
327 PM CDT Thu Sep 16 2021 /227 PM MDT Thu Sep 16 2021/

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

.DAY ONE...TONIGHT.

Elevated to near critical fire weather conditions will continue
this afternoon across portions of the eastern Panhandle and
western Sandhills.

Thunderstorms are expected to form this evening ahead of a cold
front and continue into the overnight hours. Strong to severe
storms are possible across much of western and north central
Nebraska. Large hail and damaging winds are the main threats.
Heavy rain is also possible over north central Nebraska.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

Elevated to near critical fire weather conditions are possible in
the eastern Panhandle on Saturday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated this afternoon or tonight.

&&

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

In the hours before

Special weather statement, Sep 16, 11:14 PM CDT, 2 hours 16 minutes before

Special Weather Statement
National Weather Service North Platte NE
1114 PM CDT Thu Sep 16 2021

NEZ025-026-036>038-170500-
Custer NE-McPherson NE-Thomas NE-Blaine NE-Logan NE-
1114 PM CDT Thu Sep 16 2021

...Strong thunderstorms will impact portions of Logan, northeastern
McPherson, northwestern Custer, southwestern Blaine and southern
Thomas Counties through MIDNIGHT CDT...

At 1113 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 13 miles northeast of Tryon to near Gandy.
Movement was northeast at 40 mph.

HAZARD...Wind gusts up to 50 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...
Stapleton, Anselmo, Dunning, Halsey, Gandy, Purdum, Ringgold, Logan,
Highway 83 crossing The Dismal River, Linscott, Shanklin Bluff,
Tarboz Lake, Hoagland, Brown Lake and Natwick.

This includes the following highways...
 Highway 2 between mile markers 217 and 261.
 Highway 92 between mile markers 215 and 246, and near mile marker
256.
 Highway 83 between mile markers 106 and 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
central, southwestern, north central and west central Nebraska.

&&

LAT...LON 4159 9980 4139 10033 4139 10069 4172 10092
      4174 10088 4174 10084 4176 10084 4207 10026
TIME...MOT...LOC 0413Z 242DEG 35KT 4171 10079 4140 10047

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Snively

Special weather statement, Sep 16, 11:21 PM CDT, 2 hours 9 minutes before

Special Weather Statement
National Weather Service North Platte NE
1121 PM CDT Thu Sep 16 2021

NEZ057>059-069-070-170500-
Chase NE-Hayes NE-Perkins NE-Lincoln NE-Keith NE-
1121 PM CDT Thu Sep 16 2021

...Strong thunderstorms will impact portions of Perkins, southeastern
Keith, Chase, southwestern Lincoln and northern Hayes Counties
through MIDNIGHT CDT/1100 PM MDT/...

At 1121 PM CDT/1021 PM MDT/, Doppler radar was tracking strong
thunderstorms along a line extending from near Grant to 8 miles north
of Wauneta. Movement was northeast at 30 mph.

HAZARD...Wind gusts up to 50 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...
Imperial, Grant, Paxton, Wallace, Madrid, Elsie, Enders, Enders
Reservoir State Recreation Area, Champion, Chase, Grainton, Center
Dam Campground, Brandon, Wild Horse Spring, Marengo, Wanamaker State
Wildfire Management Area and Church Grove Campground.

This includes the following highways...
 Highway 61 between mile markers 41 and 77.
 Interstate 80 in Nebraska between mile markers 142 and 146.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT/200 AM
MDT/ for southwestern Nebraska.

&&

LAT...LON 4113 10136 4066 10081 4042 10155 4051 10195
      4088 10202
TIME...MOT...LOC 0421Z 244DEG 28KT 4084 10177 4054 10138

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Snively

Special weather statement, Sep 16, 11:57 PM CDT, 1 hour 33 minutes before

Special Weather Statement
National Weather Service North Platte NE
1157 PM CDT Thu Sep 16 2021

NEZ036-057>059-069>071-170545-
Chase NE-Frontier NE-McPherson NE-Hayes NE-Perkins NE-Lincoln NE-
Keith NE-
1157 PM CDT Thu Sep 16 2021

...Strong thunderstorms will impact portions of northwestern
Frontier, eastern Perkins, eastern Keith, northeastern Chase, western
Lincoln, south central McPherson and northern Hayes Counties through
1245 AM CDT/1145 PM MDT/...

At 1156 PM CDT/1056 PM MDT/, Doppler radar was tracking strong
thunderstorms along a line extending from 6 miles northeast of
Keystone to 7 miles northeast of Elsie to near Hayes Center. Movement
was 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...
Hayes Center, Sutherland, Hershey, Paxton, Wallace, Madrid, Elsie,
Wellfleet, Dickens, Keystone, Kingsley Dam, Sarben, Sutherland
Reservoir State Recreation Area, Roscoe, Maywood, O'Fallons, Hayes
Center State Wildlife Management Area, Somerset, Grainton and Coker.

This includes the following highways...
 Highway 61 between mile markers 49 and 58, and between mile markers
93 and 95.
 Interstate 80 in Nebraska between mile markers 130 and 173.
 Highway 83 between mile markers 43 and 72.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT/200 AM
MDT/ for southwestern and west central Nebraska.

&&

LAT...LON 4150 10106 4103 10078 4060 10055 4047 10116
      4064 10166 4129 10167
TIME...MOT...LOC 0456Z 254DEG 23KT 4128 10150 4094 10129 4056 10111

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

Snively

Special weather statement, Sep 16, 11:58 PM CDT, 1 hour 32 minutes before

Special Weather Statement
National Weather Service North Platte NE
1158 PM CDT Thu Sep 16 2021

NEZ026-027-038-170545-
Loup NE-Custer NE-Blaine NE-
1158 PM CDT Thu Sep 16 2021

...A strong thunderstorm will impact portions of southwestern Loup,
northwestern Custer and southeastern Blaine Counties through 1245 AM
CDT...

At 1158 PM CDT, Doppler radar was tracking a strong thunderstorm 9
miles west of Anselmo, or 20 miles southwest of Brewster, moving
northeast at 30 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...
Brewster, Anselmo, Dunning, Victoria Springs State Recreation Area,
Lillian, Milburn, Milburn Diversion Dam State Wildlife Management
Area, Almeria Meadow State Wildlife Management Area, Walworth,
Linscott, Pleasant Hill, Gates and Divide Hill.

This includes the following highways...
 Highway 2 between mile markers 237 and 266.
 Highway 92 between mile markers 255 and 267.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
central and north central Nebraska.

&&

LAT...LON 4142 10004 4152 10023 4176 10024 4205 9981
      4168 9936
TIME...MOT...LOC 0458Z 237DEG 28KT 4166 10004

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

Snively

Special weather statement, Sep 17, 12:42 AM CDT, 48 minutes before

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Special weather statement, Sep 17, 1:30 AM 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 16, 7:20 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	40 min
Sep 16, 7:38 PM CDT	Special Weather Statement	LBF	Keith	52 min
Sep 16, 7:51 PM CDT	Special Weather Statement	LBF	Sheridan	39 min
Sep 16, 7:58 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, Lincoln, McPherson, Perkins	47 min
Sep 16, 8:21 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	39 min
Sep 16, 8:27 PM CDT	Special Weather Statement	LBF	Perkins	33 min
Sep 16, 8:33 PM CDT	Special Weather Statement	LBF	Cherry	42 min
Sep 16, 8:35 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Hooker, Lincoln, Logan, McPherson and 1 more	55 min
Sep 16, 8:55 PM CDT	Special Weather Statement	LBF	Cherry	50 min
Sep 16, 9:00 PM CDT	Special Weather Statement	LBF	Lincoln	45 min
Sep 16, 9:09 PM CDT	Special Weather Statement	LBF	Cherry	36 min
Sep 16, 9:27 PM CDT	Special Weather Statement	LBF	Custer, Logan	63 min
Sep 16, 9:31 PM CDT	Special Weather Statement	LBF	Lincoln	59 min
Sep 16, 9:36 PM CDT	Special Weather Statement	LBF	Cherry	39 min
Sep 16, 9:37 PM CDT	Special Weather Statement	LBF	Chase	68 min
Sep 16, 9:47 PM CDT	Special Weather Statement	LBF	Arthur, Hooker, McPherson, Thomas	43 min
Sep 16, 9:56 PM CDT	Special Weather Statement	LBF	Garfield, Holt, Loup, Rock	49 min
Sep 16, 10:15 PM CDT	Special Weather Statement	LBF	Lincoln	45 min
Sep 16, 10:28 PM CDT	Special Weather Statement	LBF	Custer	62 min
Sep 16, 10:30 PM CDT	Special Weather Statement	LBF	McPherson	45 min
Sep 16, 10:50 PM CDT	Special Weather Statement	LBF	Lincoln	25 min
Sep 16, 10:54 PM CDT	Special Weather Statement	LBF	Boyd	51 min
Sep 16, 10:56 PM CDT	Special Weather Statement	LBF	Chase	34 min
Sep 16, 11:14 PM CDT	Special Weather Statement	LBF	Logan, Thomas	46 min
Sep 16, 11:21 PM CDT	Special Weather Statement	LBF	Chase, Perkins	39 min
Sep 16, 11:57 PM CDT	Special Weather Statement	LBF	Hayes, Keith, Perkins	48 min
Sep 16, 11:58 PM CDT	Special Weather Statement	LBF	Blaine	47 min
Sep 17, 12:42 AM CDT	Special Weather Statement	LBF	Lincoln	48 min

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.