Alert archive / Nebraska / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 223, NWS North Platte, NE

July 25, 2018Frontier County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 25, 2018, 3:31 PM CDT for Frontier County, Nebraska. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 25, 2018, 3:31 PM CDT (20:31 UTC)
Expired
Jul 25, 2018, 4:15 PM CDT
In force
44 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Frontier County, NE

The radar

The North Platte radar (KLNX), 160 km from the middle of the area, began a volume at 20:32 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 12:00Z, 8.5 hours before the alert went out and 69 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2018-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2018-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
15 J/kg
Mixed-layer CIN
-405 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 25, 3:25 PM CDT, 6 minutes earlier.

Area forecast discussion, Jul 25, 3:25 PM CDT, 6 minutes before
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Hazardous weather outlook, Jul 25, 4:40 AM CDT, 10 hours 51 minutes before
Hazardous Weather Outlook...CORRECTED
National Weather Service North Platte NE
440 AM CDT Wed Jul 25 2018

NEZ004>010-022>029-035>038-056>059-069>071-094-260945-
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-
440 AM CDT Wed Jul 25 2018 /340 AM MDT Wed Jul 25 2018/

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

.DAY ONE...TODAY AND TONIGHT.

Scattered strong thunderstorms are expected today across western
and north central Nebraska. A few storms could become severe and
produce wind damage and large hail this afternoon. An isolated
tornado may form also. The area concern for severe weather is
generally along and south of a line from O'Neill to Stapleton to
Ogallala.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

Scattered thunderstorms are possible Thursday. The risk of severe
weather is low.

Thunderstorms are likely Friday. A few storms could become severe
and produce large hail and wind damage, mainly late in the
afternoon and in the evening. The area of concern for severe
weather is generally along and west of line from Merriman to
Mullen to Curtis. Some storms may also be capable of producing
very heavy rainfall.

Thunderstorms are possible at times Saturday and Sunday. The
potential for severe weather is uncertain at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today between 2 pm and 8 pm,
generally along and south of a line from O'Neill to Stapleton to
Ogallala.

&&

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

In the hours before

Special weather statement, Jul 25, 1:04 PM CDT, 2 hours 27 minutes before
Special Weather Statement
National Weather Service North Platte NE
104 PM CDT WED JUL 25 2018

NEZ071-251845-
Frontier NE-
104 PM CDT WED JUL 25 2018

...SIGNIFICANT WEATHER ADVISORY FOR FRONTIER AND SOUTHERN LINCOLN
COUNTIES UNTIL 145 PM CDT...

At 104 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles west of Curtis, moving southeast at 30 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Curtis, Moorefield, Stockville, Medicine Creek Reservoir State
Recreation Area, Maywood, Quick, Orafino, Bluegill Haven Campground,
Willow View Campground, Freedom, Red Willow Reservoir State
Recreation Area and Dancing Leaf Earth Lodge.

This includes Highway 83 between mile markers 27 and 50.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4060 10078 4062 10078 4070 10066 4070 10042
      4054 9998 4044 9998 4043 10009 4035 10010
      4035 10069
TIME...MOT...LOC 1804Z 317DEG 27KT 4060 10064

Kulik
Local storm report, Jul 25, 1:34 PM CDT, 1 hour 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
134 PM CDT WED JUL 25 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0129 PM     HAIL             8 SW STOCKVILLE         40.45N 100.49W
07/25/2018  E1.00 INCH       FRONTIER           NE   PUBLIC

&&

THORNE
Special weather statement, Jul 25, 2:13 PM CDT, 1 hour 18 minutes before
Special Weather Statement
National Weather Service North Platte NE
213 PM CDT WED JUL 25 2018

NEZ059-071-252000-
Frontier NE-Lincoln NE-
213 PM CDT WED JUL 25 2018

...SIGNIFICANT WEATHER ADVISORY FOR FRONTIER AND SOUTHEASTERN LINCOLN
COUNTIES UNTIL 300 PM CDT...

At 212 PM CDT, Doppler radar was tracking a strong thunderstorm over
Curtis, moving east at 25 mph.

Dime size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Curtis, Moorefield, Stockville, Medicine Creek Reservoir State
Recreation Area, Quick, Orafino, Bluegill Haven Campground, Willow
View Campground, Freedom, Red Willow Reservoir State Recreation Area
and Dancing Leaf Earth Lodge.

This includes Highway 83 between mile markers 27 and 37, and between
mile markers 41 and 42.

LAT...LON 4071 10059 4064 9998 4044 9998 4043 9999
      4044 10009 4035 10010 4035 10070
TIME...MOT...LOC 1912Z 285DEG 20KT 4061 10052

Thorne
Local storm report, Jul 25, 2:29 PM CDT, 1 hour 2 minutes before
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Special weather statement, Jul 25, 3:26 PM CDT, 5 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 12:40 AM CDTSpecial Weather StatementLBFCherry50 min
Jul 25, 1:01 AM CDTSevere Thunderstorm WarningLBFSheridan44 min
Jul 25, 1:11 AM CDTSpecial Weather StatementLBFSheridan49 min
Jul 25, 1:46 AM CDTSpecial Weather StatementLBFSheridan44 min
Jul 25, 2:44 AM CDTSpecial Weather StatementLBFCherry46 min
Jul 25, 3:44 AM CDTSpecial Weather StatementLBFBoyd46 min
Jul 25, 3:59 AM CDTSpecial Weather StatementLBFSheridan46 min
Jul 25, 4:33 AM CDTSevere Thunderstorm WarningLBFSheridan42 min
Jul 25, 5:01 AM CDTSpecial Weather StatementLBFSheridan29 min
Jul 25, 5:30 AM CDTSevere Thunderstorm WarningLBFCherry, Garden, Grant, Sheridan45 min
Jul 25, 5:42 AM CDTSpecial Weather StatementLBFGarden33 min
Jul 25, 6:13 AM CDTSpecial Weather StatementLBFArthur, Garden, Grant47 min
Jul 25, 7:06 AM CDTSpecial Weather StatementLBFKeith, McPherson39 min
Jul 25, 7:42 AM CDTSpecial Weather StatementLBFMcPherson48 min
Jul 25, 8:11 AM CDTSpecial Weather StatementLBFLincoln49 min
Jul 25, 9:04 AM CDTSpecial Weather StatementLBFCuster41 min
Jul 25, 1:04 PM CDTSpecial Weather StatementLBFFrontier41 min
Jul 25, 1:24 PM CDTSevere Thunderstorm WarningLBFFrontier51 min
Jul 25, 2:13 PM CDTSpecial Weather StatementLBFFrontier47 min
Jul 25, 2:22 PM CDTSevere Thunderstorm WarningLBFFrontier53 min
Jul 25, 3:26 PM CDTSpecial Weather StatementLBFFrontier49 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2018Every severe thunderstorm warning in 2018

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.