Alert archive / Nebraska / Special Weather Statements in 2023

Special Weather Statement, NWS North Platte, NE

September 23, 2023Logan County, McPherson County, Nebraska

NWS North Platte, NE issued this special weather statement at Sep 23, 2023, 4:21 AM CDT for Logan County, McPherson County, Nebraska. It was in force for 39 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 23, 2023, 4:21 AM CDT (09:21 UTC)
Expired: Sep 23, 2023, 5:00 AM CDT
In force: 39 min
Issued by: NWS North Platte, NE
Hail: 0.50 in
Wind: 40

Counties Logan County, NE, McPherson County, NE

The radar

The North Platte radar (KLNX), 48 km from the middle of the area, began a volume at 09:24 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, 9.4 hours before the alert went out and 49 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: 173 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 882 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 23, 3:42 AM CDT, 39 minutes earlier.

Area forecast discussion, Sep 23, 3:42 AM CDT, 39 minutes before

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Hazardous weather outlook, Sep 23, 1:34 AM CDT, 2 hours 47 minutes before

Hazardous Weather Outlook
National Weather Service North Platte NE
134 AM CDT Sat Sep 23 2023

NEZ004>010-022>029-035>038-056>059-069>071-094-241200-
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-
134 AM CDT Sat Sep 23 2023 /1234 AM MDT Sat Sep 23 2023/

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

.DAY ONE...Today and Tonight.

Strong to possibly severe thunderstorms are possible early this
morning, especially north of Interstate 80, as a cold front crosses
the region.

Patchy dense fog is also possible early this morning, including
along Interstate 80 around North Platte.

The threat for hazardous weather later this morning through this
afternoon will be low.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

In the hours before

Special weather statement, Sep 23, 1:47 AM CDT, 2 hours 34 minutes before

Special Weather Statement
National Weather Service North Platte NE
147 AM CDT Sat Sep 23 2023

NEZ006>010-024>029-035>038-057>059-069>071-231000-
Keya Paha-Boyd-Brown-Rock-Holt-Hooker-Thomas-Blaine-Loup-Garfield-
Wheeler-Arthur-McPherson-Logan-Custer-Keith-Perkins-Lincoln-Chase-
Hayes-Frontier-
Including the cities of Springview, Spencer, Butte, Lynch,
Ainsworth, Bassett, Rose, O'Neill, Atkinson, Mullen, Thedford,
Halsey, Dunning, Purdum, Brewster, Taylor, Burwell, Bartlett,
Ericson, Arthur, Tryon, Ringgold, Stapleton, Broken Bow,
Ogallala, Paxton, Grant, North Platte, Champion, Enders,
Imperial, Wauneta, Hayes Center, Curtis, Eustis, and Maywood
147 AM CDT Sat Sep 23 2023 /1247 AM MDT Sat Sep 23 2023/

...Expect patchy dense fog for the next few hours...

Fog with visibility less than one mile will persist across most of
central and southwest Nebraska, including along Interstate 80,
for the next couple of hours. A cold front is expected to move
across the region from the west before daybreak, sweeping out the
fog.

Drivers should be prepared for rapidly changing conditions. Slow
down, leave extra space between vehicles, and use low beam
headlights.

Special weather statement, Sep 23, 2:30 AM CDT, 1 hour 51 minutes before

Special Weather Statement
National Weather Service North Platte NE
130 AM MDT Sat Sep 23 2023

NEZ056-230815-
Deuel NE-
130 AM MDT Sat Sep 23 2023

...A STRONG THUNDERSTORM WILL IMPACT DEUEL COUNTY THROUGH 215 AM
MDT...

At 130 AM MDT, Doppler radar was tracking a strong thunderstorm near
Ovid, or 7 miles south of Chappell, moving east at 40 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Chappell, Big Springs, Barton, and Goldeneye State Wildlife
Management Area.

This includes Interstate 80 in Nebraska between mile markers 84 and
108.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4120 10226 4122 10208 4121 10206 4101 10206
      4100 10216 4101 10258 4104 10260
TIME...MOT...LOC 0730Z 248DEG 34KT 4099 10244

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

Taylor

Special weather statement, Sep 23, 3:35 AM CDT, 46 minutes before

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Local storm report, Sep 23, 3:51 AM CDT, 30 minutes before

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Special weather statement, Sep 23, 4:21 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 23, 2:30 AM CDT	Special Weather Statement	LBF	Deuel	45 min
Sep 23, 2:45 AM CDT	Severe Thunderstorm Warning	LBF	Deuel, Keith, Perkins	45 min
Sep 23, 3:24 AM CDT	Severe Thunderstorm Warning	LBF	Perkins	28 min
Sep 23, 3:35 AM CDT	Special Weather Statement	LBF	McPherson	40 min
Sep 23, 5:05 AM CDT	Special Weather Statement	LBF	Logan	40 min
Sep 23, 5:47 AM CDT	Special Weather Statement	LBF	Blaine, Custer, Loup	43 min
Sep 23, 6:33 AM CDT	Special Weather Statement	LBF	Custer, Garfield, Loup	42 min
Sep 23, 6:55 AM CDT	Severe Thunderstorm Warning	LBF	Garfield, Holt, Wheeler	35 min
Sep 23, 7:14 AM CDT	Special Weather Statement	LBF	Wheeler	61 min

Nearby

Special Weather Statements in Nebraska, 2023 Every 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.