Alert archive / Nebraska / Special Weather Statements in 2018

Special Weather Statement, NWS North Platte, NE

July 28, 2018Grant County, Nebraska

NWS North Platte, NE issued this special weather statement at Jul 28, 2018, 1:46 AM MDT for Grant 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 outline as issued.

The facts

Issued: Jul 28, 2018, 1:46 AM MDT (07:46 UTC)
Expired: Jul 28, 2018, 2:30 AM MDT
In force: 44 min
Issued by: NWS North Platte, NE

County Grant County, NE

The radar

The North Platte radar (KLNX), 155 km from the middle of the area, began a volume at 07:50 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, 7.8 hours before the alert went out and 186 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: 148 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 1413 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Jul 27, 10:44 PM MDT, 3 hours 2 minutes earlier.

Area forecast discussion, Jul 27, 10:44 PM MDT, 3 hours 2 minutes before

Area Forecast Discussion
National Weather Service North Platte NE
1144 PM CDT Fri Jul 27 2018

.SHORT TERM...(This evening through Saturday)
Issued at 228 PM CDT Fri Jul 27 2018

The near term concern is thunderstorms with severe storms possible
mainly west of Ellsworth through North Platte this evening.
Overcast skies with showers and a few thunderstorms have limited
the instability this afternoon, and thus the potential for
widespread severe storms into this evening. Models do however
indicate a mid level disturbance currently extending from
southwest South Dakota thorugh southeast Wyoming to increase
thunderstorm coverage this evening, especially for areas south of
Highway 2. In addition to an isolated hail and wind threat, heavy
rainfall will be an additional concern. Areas which have received
heavy rainfall the past few days will be under increased chances
for localized flooding, which includes eastern Keith, west and
southeast Lincoln into Frontier County. Showers and thunderstorms
chances lower to a low chance pop after midnight, while chances
increase in the northeast to around 50 percent.

On Saturday, as the disturbance moves into eastern Nebraska,
showers and storms are likely during the morning with just a
slight chance southwest. In the afternoon, an approach disturbance
to the northwest, will bring increased chances for showers and
storms to the northwest Sandhills, while still near a 30 percent
chance southeast. Stratus will likely cover much of the forecast
area during the morning, while still mostly cloudy into the
afternoon. This will limit highs to only the low to mid 70s most
areas with a light southeast wind through the day.

.LONG TERM...(Saturday night through Friday)
Issued at 228 PM CDT Fri Jul 27 2018

Northwest flow aloft will continue Saturday night thorugh Sunday
night. This is due to upper level high pressure remaining anchored
across the desert southwest, and a slow moving upper trough draped
across the Great Lakes and Midwest. Shower and thunderstorm
chances to remain near 50 percent most areas Saturday night and
Sunday, with the best potential for heavy rainfall expected
across southwest areas Saturday night. Unsettled, rather cool
conditions are forecast though Sunday night, with scattered
showers and thunderstorms and highs Sunday in the mid 70s. Only
general thunderstorms forecast Sunday.

Early next week an upper level low will develop near and east of
the mid Missouri Valley and move eastward through Wednesday. With
lingering shower and thunderstorm chances Monday, the remainder
of the extended look dry. Upper level ridging will expand
northward across the Rockies. The upper level ridge to the west
will flatten out late next week. Flow aloft will become more zonal
across the central and northern plains as this occurs, with highs
returning to near normal in the middle 80s to around 90.

&&

.AVIATION...(For the 06Z TAFS through 06Z Saturday night)
Issued at 1142 PM CDT Fri Jul 27 2018

Ceilings will lower overnight across western and north central
Nebraska to 1000 to 2500 FT AGL for both the KLBF and KVTN
terminals. There will be a continued threat for thunderstorms
overnight across western and north central Nebraska with coverage
being isolated in nature. Will handle this with a VCTS mention for
both terminals overnight. Ceilings will increase on Saturday but
remain in the 3000 to 8000 FT AGL range for KVTN and the 3000 to
10000 FT AGL range for KLBF.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...
None.
&&

SHORT TERM...Roberg
LONG TERM...Roberg
AVIATION...Buttler

Hazardous weather outlook, Jul 27, 6:49 PM MDT, 6 hours 57 minutes before

Hazardous Weather Outlook
National Weather Service North Platte NE
749 PM CDT Fri Jul 27 2018

NEZ004>010-022>029-035>038-056>059-069>071-094-290100-
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-
749 PM CDT Fri Jul 27 2018 /649 PM MDT Fri Jul 27 2018/

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

.DAY ONE...TONIGHT.

Thunderstorms are expected to impact portions of western and north
central Nebraska tonight. Isolated severe storms are possible with
large hail, damaging winds and heavy rain.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

Isolated strong storms are possible Saturday and Saturday night
across the Panhandle and southwest Nebraska. Hail and damaging
winds are the primary threats.

While isolated to scattered storms are possible Sunday as well,
severe thunderstorms are not expected at this time.

.SPOTTER INFORMATION STATEMENT...

There is a small chance spotters may be activated the rest of
tonight.

&&

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

CLB

In the hours before

Local storm report, Jul 27, 8:46 PM MDT, 5 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
946 PM CDT FRI JUL 27 2018

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

0932 PM     HAIL             9 SW GORDON             42.71N 102.33W
07/27/2018  E1.00 INCH       SHERIDAN           NE   PUBLIC

&&

THORNE

Local storm report, Jul 27, 9:22 PM MDT, 4 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1022 PM CDT FRI JUL 27 2018

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

1006 PM     HAIL             24 NE ELLSWORTH         42.31N 101.95W
07/27/2018  E1.00 INCH       CHERRY             NE   PUBLIC

&&

THORNE

Local storm report, Jul 27, 9:24 PM MDT, 4 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1024 PM CDT FRI JUL 27 2018

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

0921 PM     HAIL             2 NE RUSHVILLE          42.73N 102.44W
07/27/2018  M3.00 INCH       SHERIDAN           NE   PUBLIC

            DELAYED REPORT VIA SOCIAL MEDIA WITH PICTURES

&&

THORNE

Local storm report, Jul 27, 9:31 PM MDT, 4 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1031 PM CDT FRI JUL 27 2018

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

0530 PM     TSTM WND GST     1 W CROOKSTON           42.93N 100.77W
07/27/2018  E60.00 MPH       CHERRY             NE   TRAINED SPOTTER

            WIND GUSTS ESTIMATED AT 60 MPH ALONG WITH HEAVY RAIN AND
            PEA SIZED HAIL.

0610 PM     HAIL             14 S VALENTINE          42.67N 100.55W
07/27/2018  E0.75 INCH       CHERRY             NE   PUBLIC

0841 PM     HEAVY RAIN       39 SSE VALENTINE        42.35N 100.26W
07/27/2018  M1.60 INCH       CHERRY             NE   COCORAHS

            COCORAHS GAUGE REPORTS 1.60 INCHES OF RAIN IN 15 MINUTES.

0856 PM     HAIL             18 N RUSHVILLE          42.97N 102.47W
07/27/2018  E1.75 INCH       SHERIDAN           NE   PUBLIC

0903 PM     HAIL             14 N RUSHVILLE          42.92N 102.47W
07/27/2018  E2.75 INCH       SHERIDAN           NE   PUBLIC

            REPORTS OF WINDOWS BROKEN OUT, TREE LIMBS DOWN AND POWER
            OUTAGE.

0906 PM     HAIL             13 N RUSHVILLE          42.90N 102.47W
07/27/2018  E2.00 INCH       SHERIDAN           NE   PUBLIC

            REPORTS OF 3 BROKEN WINDOWS AND HAIL COVERING THE GROUND.

0921 PM     HAIL             2 NE RUSHVILLE          42.73N 102.44W
07/27/2018  M3.00 INCH       SHERIDAN           NE   PUBLIC

            DELAYED REPORT VIA SOCIAL MEDIA WITH PICTURES

0925 PM     HAIL             7 SW GORDON             42.73N 102.30W
07/27/2018  E1.75 INCH       SHERIDAN           NE   PUBLIC

0932 PM     HAIL             9 SW GORDON             42.71N 102.33W
07/27/2018  E1.00 INCH       SHERIDAN           NE   PUBLIC

1006 PM     HAIL             24 NE ELLSWORTH         42.31N 101.95W
07/27/2018  E1.00 INCH       CHERRY             NE   PUBLIC

1009 PM     TSTM WND GST     23 NE ELLSWORTH         42.29N 101.97W
07/27/2018  E60.00 MPH       CHERRY             NE   PUBLIC

&&

THORNE

Local storm report, Jul 27, 9:32 PM MDT, 4 hours 14 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1032 PM CDT FRI JUL 27 2018

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

0530 PM     TSTM WND GST     1 W CROOKSTON           42.93N 100.77W
07/27/2018  E60.00 MPH       CHERRY             NE   TRAINED SPOTTER

            WIND GUSTS ESTIMATED AT 60 MPH ALONG WITH HEAVY RAIN AND
            PEA SIZED HAIL.

0610 PM     HAIL             14 S VALENTINE          42.67N 100.55W
07/27/2018  E0.75 INCH       CHERRY             NE   PUBLIC

0841 PM     HEAVY RAIN       39 SSE VALENTINE        42.35N 100.26W
07/27/2018  M1.60 INCH       CHERRY             NE   COCORAHS

            COCORAHS GAUGE REPORTS 1.60 INCHES OF RAIN IN 15 MINUTES.

0856 PM     HAIL             18 N RUSHVILLE          42.97N 102.47W
07/27/2018  E1.75 INCH       SHERIDAN           NE   PUBLIC

0903 PM     HAIL             14 N RUSHVILLE          42.92N 102.47W
07/27/2018  E2.75 INCH       SHERIDAN           NE   PUBLIC

            REPORTS OF WINDOWS BROKEN OUT, TREE LIMBS DOWN AND POWER
            OUTAGE.

0906 PM     HAIL             13 N RUSHVILLE          42.90N 102.47W
07/27/2018  E2.00 INCH       SHERIDAN           NE   PUBLIC

            REPORTS OF 3 BROKEN WINDOWS AND HAIL COVERING THE GROUND.

0921 PM     HAIL             2 NE RUSHVILLE          42.73N 102.44W
07/27/2018  M3.00 INCH       SHERIDAN           NE   PUBLIC

            DELAYED REPORT VIA SOCIAL MEDIA WITH PICTURES

0925 PM     HAIL             7 SW GORDON             42.73N 102.30W
07/27/2018  E1.75 INCH       SHERIDAN           NE   PUBLIC

0932 PM     HAIL             9 SW GORDON             42.71N 102.33W
07/27/2018  E1.00 INCH       SHERIDAN           NE   PUBLIC

1006 PM     HAIL             24 NE ELLSWORTH         42.31N 101.95W
07/27/2018  E1.00 INCH       CHERRY             NE   PUBLIC

1009 PM     TSTM WND GST     23 NE ELLSWORTH         42.29N 101.97W
07/27/2018  E60.00 MPH       CHERRY             NE   PUBLIC

&&

THORNE

Special weather statement, Jul 28, 1:46 AM MDT, 0 minutes before

Special Weather Statement
National Weather Service North Platte NE
146 AM MDT SAT JUL 28 2018

NEZ004-022-023-094-280830-
Sheridan NE-Grant NE-Western Cherry NE-Garden NE-
146 AM MDT SAT JUL 28 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CHERRY...WESTERN
GRANT...NORTHERN GARDEN AND SOUTHERN SHERIDAN COUNTIES UNTIL 230 AM
MDT...

At 146 AM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 27 miles southeast of Gordon to 8 miles
southwest of Antioch. Movement was southeast at 45 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Ellsworth, Hyannis, Ashby, Antioch, Crescent Lake National Wildlife
Refuge, Duluth, Big Hill, Dipping Vat Meadow, Billys Lake, Swede
Lake, Deer Lake, Britton Lake, Intersection of Highway 61 and Survey
Valley Road, Miles Lake, Mumper, Wickson Lake, Diamond Lake, Herman
Lake, Whitman Road crossing the North Branch of the Middle Loup River
and Adams Flats.

This includes the following highways...
 Highway 250 between mile markers 1 and 21.
 Highway 2 between mile markers 96 and 153.
 Highway 61 between mile markers 155 and 194.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4215 10274 4262 10197 4227 10124 4162 10223
      4182 10268 4200 10268 4201 10270 4209 10270
      4210 10274
TIME...MOT...LOC 0746Z 300DEG 41KT 4249 10189 4196 10269

ET

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 6:13 PM MDT	Special Weather Statement	LBF	Custer	47 min
Jul 27, 6:36 PM MDT	Special Weather Statement	LBF	Blaine, Thomas	54 min
Jul 27, 7:46 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	59 min
Jul 27, 8:11 PM MDT	Special Weather Statement	LBF	Custer	49 min
Jul 27, 8:25 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	50 min
Jul 27, 9:06 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Grant, Sheridan	22 min
Jul 28, 2:12 AM MDT	Severe Thunderstorm Warning	LBF	Garden	48 min
Jul 28, 2:26 AM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Grant	49 min
Jul 28, 3:10 AM MDT	Special Weather Statement	LBF	Arthur	50 min
Jul 28, 4:46 AM MDT	Special Weather Statement	LBF	Chase	44 min

Nearby

Special Weather Statements in Nebraska, 2018 Every special weather statement 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.