Alert archive / Nebraska / Special Weather Statements in 2021

Special Weather Statement, NWS North Platte, NE

September 12, 20214 counties in Nebraska

NWS North Platte, NE issued this special weather statement at Sep 12, 2021, 1:00 AM CDT for 4 counties in 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 12, 2021, 1:00 AM CDT (06:00 UTC)
Expired: Sep 12, 2021, 1:45 AM CDT
In force: 45 min
Issued by: NWS North Platte, NE
Hail: 0.00 in
Wind: 40

Counties Garfield County, NE, Holt County, NE, Rock County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 121 km from the middle of the area, began a volume at 06:02 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, 6.0 hours before the alert went out and 144 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: 1607 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 2830 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Sep 12, 12:01 AM CDT, 59 minutes earlier.

Area forecast discussion, Sep 12, 12:01 AM CDT, 59 minutes before

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Hazardous weather outlook, Sep 11, 9:49 PM CDT, 3 hours 11 minutes before

Hazardous Weather Outlook
National Weather Service North Platte NE
949 PM CDT Sat Sep 11 2021

NEZ004>010-022>029-035>038-056>059-069>071-094-130300-
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-
949 PM CDT Sat Sep 11 2021 /849 PM MDT Sat Sep 11 2021/

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

.DAY ONE...TONIGHT.

Thunderstorms are possible this evening across much of western
Nebraska. A few storms may be strong with wind gusts up to 50 mph.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

Thunderstorms will be possible during the late afternoon and
evening on both Sunday and Monday. The threat for strong to
briefly severe thunderstorms will exist each day with the main
concerns being large hail and damaging winds.

.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 11, 9:45 PM CDT, 3 hours 15 minutes before

Special Weather Statement
National Weather Service North Platte NE
845 PM MDT Sat Sep 11 2021

NEZ022-023-035-056>058-120330-
Deuel NE-Grant NE-Arthur NE-Garden NE-Perkins NE-Keith NE-
845 PM MDT Sat Sep 11 2021

...Strong thunderstorms will impact portions of western Arthur,
northwestern Perkins, southwestern Grant, Keith, southeastern Garden
and eastern Deuel Counties through 930 PM MDT...

At 845 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles southeast of Crescent Lake National
Wildlife Refuge to near Lewellen to near Big Springs. Movement was
east at 30 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Ogallala, Big Springs, Brule, Lewellen, Keystone, Kingsley Dam,
Barton, Lemoyne, Roscoe, Dogtown Flats, Megeath, Bourquim Hill, Adams
Flats, Eagle Gulch Campground, Ruthon, Haythorn Lake, Clear Creek
State Wildlife Management Area, Rackett, McKeag and Otter Creek
Campground.

This includes the following highways...
 Highway 61 between mile markers 72 and 120.
 Highway 92 between mile markers 115 and 138.
 Interstate 80 in Nebraska between mile markers 97 and 133.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4176 10188 4135 10158 4088 10158 4094 10205
      4101 10205 4100 10227 4136 10226 4171 10252
TIME...MOT...LOC 0245Z 270DEG 25KT 4164 10229 4135 10208 4103 10208

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Buttler

Special weather statement, Sep 11, 10:11 PM CDT, 2 hours 49 minutes before

Special Weather Statement
National Weather Service North Platte NE
1011 PM CDT Sat Sep 11 2021

NEZ022>024-035-036-057>059-120400-
Hooker NE-Grant NE-Arthur NE-McPherson NE-Garden NE-Perkins NE-
Lincoln NE-Keith NE-
1011 PM CDT Sat Sep 11 2021

...Strong thunderstorms will impact portions of Arthur, northern
Perkins, southern Grant, Keith, southwestern Hooker, northwestern
Lincoln, east central Garden and western McPherson Counties through
1100 PM CDT/1000 PM MDT/...

At 1010 PM CDT/910 PM MDT/, Doppler radar was tracking strong
thunderstorms along a line extending from 13 miles northwest of
Arthur to 7 miles northeast of Lemoyne to 6 miles south of Ogallala.
Movement was east at 35 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Ogallala, Arthur, Paxton, Brule, Keystone, Kingsley Dam, Sarben,
Lemoyne, Roscoe, Flatts, Cogill Lake, Green Lake, Bucktail Lake,
Bourquim Hill, Three Mile Lake, Eagle Gulch Campground, Haythorn
Lake, Lena, Sand Puddin Lake and Nevens.

This includes the following highways...
 Highway 61 between mile markers 76 and 141.
 Highway 92 between mile markers 124 and 188.
 Interstate 80 in Nebraska between mile markers 113 and 155.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4185 10140 4142 10116 4094 10120 4096 10199
      4137 10196 4173 10217
TIME...MOT...LOC 0310Z 264DEG 32KT 4168 10191 4138 10174 4104 10176

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Buttler

Special weather statement, Sep 11, 10:37 PM CDT, 2 hours 23 minutes before

Special Weather Statement
National Weather Service North Platte NE
1037 PM CDT Sat Sep 11 2021

NEZ023>025-035>037-057>059-120415-
Hooker NE-Grant NE-Arthur NE-McPherson NE-Thomas NE-Perkins NE-
Lincoln NE-Keith NE-Logan NE-
1037 PM CDT Sat Sep 11 2021

...Strong thunderstorms will impact portions of eastern Arthur,
northeastern Perkins, southeastern Grant, eastern Keith, southern
Hooker, northwestern Lincoln, western Logan, McPherson and
southwestern Thomas Counties through 1115 PM CDT/1015 PM MDT/...

At 1037 PM CDT/937 PM MDT/, Doppler radar was tracking strong
thunderstorms along a line extending from 14 miles northeast of
Arthur to 18 miles north of Sarben to near Paxton. Movement was east
at 45 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
North Platte, Tryon, Sutherland, Hershey, Paxton, Lake Maloney State
Recreation Area, Sarben, Ringgold, Sutherland Reservoir State
Recreation Area, North Platte Airport, Keith, Flatts, O'Fallons,
Cogill Lake, Green Lake, Bucktail Lake, Three Mile Lake, Shimmons
Lake, Lena and Coker.

This includes the following highways...
 Highway 92 between mile markers 170 and 227.
 Highway 97 between mile markers 1 and 56.
 Interstate 80 in Nebraska between mile markers 138 and 188.
 Highway 83 between mile markers 73 and 104.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4194 10077 4150 10053 4099 10056 4098 10151
      4142 10149 4179 10170
TIME...MOT...LOC 0337Z 261DEG 37KT 4173 10151 4143 10134 4106 10136

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Buttler

Special weather statement, Sep 11, 11:06 PM CDT, 1 hour 54 minutes before

Special Weather Statement
National Weather Service North Platte NE
1106 PM CDT Sat Sep 11 2021

NEZ005-024>026-036>038-059-094-120445-
Hooker NE-Eastern Cherry NE-Custer NE-McPherson NE-Western Cherry NE-
Thomas NE-Blaine NE-Lincoln NE-Logan NE-
1106 PM CDT Sat Sep 11 2021

...Strong thunderstorms will impact portions of south central Cherry,
Hooker, northern Lincoln, Logan, McPherson, northwestern Custer,
southwestern Blaine and Thomas Counties through 1145 PM CDT/1045 PM
MDT/...

At 1105 PM CDT/1005 PM MDT/, Doppler radar was tracking strong
thunderstorms along a line extending from 12 miles southwest of
Mullen to Tryon to near Hershey. Movement was east northeast at 45
mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

Strong thunderstorms will be near...
  North Platte around 1110 PM CDT.
  Ringgold around 1115 PM CDT.
  Mullen around 1020 PM MDT.
  Seneca around 1135 PM CDT.
  Thedford around 1145 PM CDT.

Other locations impacted by these storms include Highway 83 crossing
The Dismal River, Shanklin Bluff, Tarboz Lake, Logan, Hoagland, Brown
Lake, Norway, Highway 97 crossing the Dismal River, Birdwood and
Natwick.

This includes the following highways...
 Highway 2 between mile markers 181 and 226.
 Highway 92 between mile markers 196 and 251.
 Highway 97 between mile markers 1 and 69.
 Interstate 80 in Nebraska between mile markers 163 and 174.
 Highway 83 between mile markers 82 and 164.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4224 10056 4177 10019 4124 10013 4107 10104
      4153 10109 4194 10142
TIME...MOT...LOC 0405Z 250DEG 41KT 4193 10122 4158 10094 4119 10090

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Buttler

Special weather statement, Sep 11, 11:19 PM CDT, 1 hour 41 minutes before

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Special weather statement, Sep 12, 1:00 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 11, 7:07 PM CDT	Special Weather Statement	LBF	Sheridan	38 min
Sep 11, 7:53 PM CDT	Special Weather Statement	LBF	Cherry	52 min
Sep 11, 8:39 PM CDT	Special Weather Statement	LBF	Deuel	51 min
Sep 11, 8:55 PM CDT	Special Weather Statement	LBF	Deuel, Garden	50 min
Sep 11, 9:18 PM CDT	Special Weather Statement	LBF	Cherry	42 min
Sep 11, 9:45 PM CDT	Special Weather Statement	LBF	Garden, Keith	45 min
Sep 11, 10:11 PM CDT	Special Weather Statement	LBF	Arthur, Keith	49 min
Sep 11, 10:37 PM CDT	Special Weather Statement	LBF	Lincoln, McPherson	38 min
Sep 11, 11:06 PM CDT	Special Weather Statement	LBF	Hooker, Logan, McPherson, Thomas	39 min
Sep 11, 11:19 PM CDT	Special Weather Statement	LBF	Cherry, Grant	41 min
Sep 11, 11:43 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Logan, McPherson, Thomas	62 min
Sep 11, 11:59 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	61 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.