Alert archive / Nebraska / Special Weather Statements in 2023

Special Weather Statement, NWS North Platte, NE

June 21, 2023Keith County, Nebraska

NWS North Platte, NE issued this special weather statement at Jun 21, 2023, 7:41 PM MDT for Keith County, Nebraska. It was in force for 49 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: Jun 21, 2023, 7:41 PM MDT (01:41 UTC)
Expired: Jun 21, 2023, 8:30 PM MDT
In force: 49 min
Issued by: NWS North Platte, NE
Hail: 0.75 in
Wind: 40

County Keith County, NE

The radar

The North Platte radar (KLNX), 145 km from the middle of the area, began a volume at 01:41 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, 1.7 hours before the alert went out and 105 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: 433 J/kg
Mixed-layer CIN: -208 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jun 21, 5:24 PM MDT, 2 hours 17 minutes earlier.

Area forecast discussion, Jun 21, 5:24 PM MDT, 2 hours 17 minutes before

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Hazardous weather outlook, Jun 21, 2:39 PM MDT, 5 hours 2 minutes before

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In the hours before

Special weather statement, Jun 21, 1:58 PM MDT, 5 hours 43 minutes before

Special Weather Statement
National Weather Service North Platte NE
158 PM MDT Wed Jun 21 2023

NEZ022-212045-
Garden NE-
158 PM MDT Wed Jun 21 2023

...A strong thunderstorm will impact portions of central Garden
County through 245 PM MDT...

At 157 PM MDT, Doppler radar was tracking a strong thunderstorm near
Crescent Lake National Wildlife Refuge, or 17 miles north of Oshkosh.
This storm was nearly stationary.

HAZARD...Winds in excess of 40 mph and half inch 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...
Crescent Lake National Wildlife Refuge, Deer Lake, Mumper, Adams
Flats, Britton Lake and Dogtown Flats.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4158 10223 4156 10249 4182 10262 4185 10221
TIME...MOT...LOC 1957Z 163DEG 4KT 4165 10240

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

NMJ

Special weather statement, Jun 21, 6:36 PM MDT, 1 hour 5 minutes before

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Special weather statement, Jun 21, 7:16 PM MDT, 25 minutes before

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Special weather statement, Jun 21, 7:41 PM MDT, 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
Jun 21, 6:18 PM MDT	River Flood Warning	LBF	Deuel, Keith	8 days
Jun 21, 6:36 PM MDT	Special Weather Statement	LBF	Deuel	39 min
Jun 21, 7:16 PM MDT	Special Weather Statement	LBF	Deuel	29 min
Jun 21, 7:29 PM MDT	Areal Flood Advisory	LBF	Deuel	2 hr
Jun 22, 5:13 AM MDT	Areal Flood Advisory	LBF	Lincoln	100 min
Jun 22, 12:04 PM MDT	Special Weather Statement	LBF	Loup	26 min
Jun 22, 2:16 PM MDT	Areal Flood Advisory	LBF	Custer	3 hr
Jun 22, 3:04 PM MDT	Special Weather Statement	LBF	Brown, Keya Paha	41 min
Jun 22, 3:12 PM MDT	Special Weather Statement	LBF	Blaine	33 min
Jun 22, 4:31 PM MDT	Special Weather Statement	LBF	Keya Paha	44 min
Jun 22, 5:20 PM MDT	Areal Flood Advisory	LBF	Keya Paha	3 hr

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.