Alert archive / Nebraska / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 153, NWS North Platte, NE

July 12, 20197 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 12, 2019, 11:40 PM CDT for 7 counties in Nebraska. It was in force for 65 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 12, 2019, 11:40 PM CDT (04:40 UTC)
Expired: Jul 13, 2019, 12:45 AM CDT
In force: 65 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Blaine County, NE, Brown County, NE, Cherry County, NE, Custer County, NE, Garfield County, NE, Loup County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 51 km from the middle of the area, began a volume at 04:41 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 12, 8:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.7 hours before the alert went out and 111 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: 2983 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 2033 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 12, 6:36 PM CDT, 5 hours 4 minutes earlier.

Area forecast discussion, Jul 12, 6:36 PM CDT, 5 hours 4 minutes before

Area Forecast Discussion
National Weather Service North Platte NE
636 PM CDT Fri Jul 12 2019

.SHORT TERM...(This evening through Saturday night)
Issued at 319 PM CDT Fri Jul 12 2019

The main concern for the near-term is the chance of thunderstorms
tonight and again on Saturday night. For tonight, Thunderstorms will
likely start across the northwest Sandhills over the next couple
hours. Thunderstorms will become widespread by mid-evening before
moving to the east. Sufficient instability (CAPE values over 3000
J/kg) will help to support severe storms across the central
Sandhills and into north central Nebraska. Strong winds will be the
primary threat as thunderstorms develop into a MCS overnight. Heavy
rainfall leading to localized flooding will also be a concern. Up to
an inch to 1.5 inches is possible across portions of the region.

For Saturday, dry conditions return for the daytime. Thunderstorm
chances return on Saturday evening. At this time, the severe risk
remains low with the best locations to see thunderstorms north of a
line from Lisco to Spencer. Any thunderstorms that develop are
expected to remain isolated. Will continue to monitor the
environment heading into tomorrow which in turn will give us a
better idea about the severe risk for Saturday evening.

Hot temperatures will also continue into tomorrow with highs in the
low to mid 90s. Heat indices in the mid to upper 90s should be
expected and extra precautions taken if one must be outdoors on
Saturday.

.LONG TERM...(Sunday through Friday)
Issued at 319 PM CDT Fri Jul 12 2019

Heading into Sunday, dry weather is expected early with some
isolated chances of thunderstorms across the northwest.
Thunderstorms are not expected to be severe and will only last a
hour or two before dissipating.

For the beginning of next week (Monday through Wednesday), a fairly
redundant pattern sets up across western and north central Nebraska.
Dry conditions prevail during the days with evening and overnight
thunderstorms possible. Thunderstorms are expected to be tied mostly
to diurnal heating developing late afternoon and early evening.
Thunderstorms may become enhanced overnight as the nocturnal jet
intensifies; however, most thunderstorms are expected to dissipate
overnight. Severe risk is uncertain at this time, but fully expect
at least a stronger storm or two with these evening thunderstorms.
Small hail and gusty winds will be the primary threats. Localized
flooding due to intense rainfall will also be possible.

Beyond Wednesday, upper level ridging sets up across the central US
bringing a return to surface high pressure over the region. Drier
weather will return on Thursday lasting through the end of the week.

The other major concern headed into the extended period is the
continued very hot temperatures. High temperatures will be solidly
in the 90s through next Friday. Heat indices will also rise into the
mid to upper 90s. A few isolated locations across north central
Nebraska may even see heat index values approach 100 degrees. At
this time no headlines are expected, but stay tuned to later
forecasts as we get a better handle on temperatures next week.

&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 632 PM CDT Fri Jul 12 2019

VFR conditions will continue across western Nebraska for the next
24 hours. The main aviation concern will be the thunderstorm
develop this evening and overnight. Recent satellite and radar
imagery shows thunderstorms developing over the Nebraska
Panhandle. These are expected to make their way into western
Nebraska this evening and overnight and affect both terminals. Any
thunderstorms that do develop will be capable of reducing
visibility to below 3SM with gusty and erratic winds. The
thunderstorm activity should move east of the terminals shortly
after 06z Saturday.

&&

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

SHORT TERM...Kulik
LONG TERM...Kulik
AVIATION...Thorne

Hazardous weather outlook, Jul 12, 3:29 PM CDT, 8 hours 11 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service North Platte NE
329 PM CDT Fri Jul 12 2019

NEZ004>010-022>029-035>038-056>059-069>071-094-132030-
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-
329 PM CDT Fri Jul 12 2019 /229 PM MDT Fri Jul 12 2019/

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

.DAY ONE...TONIGHT.

There is a slight risk for severe thunderstorms across the
outlook area. The primary hazards are damaging winds, isolated
large hail, and frequent lightning. Also, locally moderate to
heavy rainfall will be possible across portions of northern
Nebraska with thunderstorms resulting in localized flooding and
rises on streams and rivers.

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

Peak heat indices in the mid to upper 90s are expected during the
mid to late afternoon hours Saturday.

Afternoon and evening thunderstorms are possible again Saturday
through Wednesday. While the risk of severe weather is low this
weekend, the risk is uncertain Monday and beyond.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this afternoon and evening.

&&

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

Roberg

In the hours before

Local storm report, Jul 12, 10:24 PM CDT, 1 hour 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1024 PM CDT FRI JUL 12 2019

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

0929 PM     TSTM WND GST     4 WSW KEYSTONE          41.20N 101.66W
07/12/2019  M64 MPH          KEITH              NE   MESONET

            WINDS RECORDED FROM AUTOMATED WEATHER STATION.

&&

JGOMEZ

Local storm report, Jul 12, 10:26 PM CDT, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1026 PM CDT FRI JUL 12 2019

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

1013 PM     TSTM WND GST     9 SW HERSHEY            41.06N 101.10W
07/12/2019  M63 MPH          LINCOLN            NE   MESONET

            WIND GUST RECORDED ON AUTOMATED WEATHER STATION.

&&

JGOMEZ

Local storm report, Jul 12, 11:07 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1107 PM CDT FRI JUL 12 2019

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

1055 PM     TSTM WND DMG     NORTH PLATTE            41.13N 100.77W
07/12/2019                   LINCOLN            NE   EMERGENCY MNGR

            MULTIPLE POWER LINES DOWN AROUND EAST D AND EAST E
            STREETS. FIRE DEPARTMENT REPORTS TREE LIMBS HAVE KNOCKED
            LINES DOWN. ALSO POWER TRANSFORMER ON EAST D STREET IS ON
            FIRE. A POWER POLE ON EAST 13TH STREET IS ALSO ON FIRE
            ALONG WITH ANOTHER POWER POLE JUST OUTSIDE OF NORTH
            PLATTE.

&&

JGOMEZ

Local storm report, Jul 12, 11:10 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1110 PM CDT FRI JUL 12 2019

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

1109 PM     TSTM WND DMG     SUTHERLAND              41.16N 101.13W
07/12/2019                   LINCOLN            NE   EMERGENCY MNGR

            REPORTS OF TREE LIMBS DOWN FROM HIGH WINDS AND SOME POWER
            OUTAGES.

&&

JGOMEZ

Local storm report, Jul 12, 11:29 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1129 PM CDT FRI JUL 12 2019

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

1111 PM     TSTM WND GST     6 E GANDY               41.45N 100.34W
07/12/2019  M57 MPH          LOGAN              NE   MESONET

            DAVIS WEATHER STATION.

&&

ET

Local storm report, Jul 12, 11:34 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1134 PM CDT FRI JUL 12 2019

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

1134 PM     TSTM WND GST     THEDFORD                41.98N 100.57W
07/12/2019  M62 MPH          THOMAS             NE   AWOS

&&

THORNE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 7:29 PM CDT	Special Weather Statement	LBF	Garden	31 min
Jul 12, 7:52 PM CDT	Severe Thunderstorm Warning	LBF	Deuel, Garden	53 min
Jul 12, 8:02 PM CDT	Special Weather Statement	LBF	Garden	43 min
Jul 12, 8:44 PM CDT	Special Weather Statement	LBF	Deuel	46 min
Jul 12, 8:46 PM CDT	Special Weather Statement	LBF	Garden	44 min
Jul 12, 9:18 PM CDT	Special Weather Statement	LBF	Arthur	27 min
Jul 12, 9:20 PM CDT	Special Weather Statement	LBF	Keith, Perkins	25 min
Jul 12, 9:32 PM CDT	Special Weather Statement	LBF	Grant	58 min
Jul 12, 9:44 PM CDT	Special Weather Statement	LBF	Keith, Perkins	61 min
Jul 12, 9:46 PM CDT	Special Weather Statement	LBF	Arthur, Garden	59 min
Jul 12, 10:02 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, Lincoln, McPherson	36 min
Jul 12, 10:17 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Cherry, Grant, Hooker, Logan, McPherson and 1 more	58 min
Jul 12, 10:34 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Frontier, Lincoln, Logan, McPherson	56 min
Jul 12, 11:06 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Cherry, Custer, Hooker, Lincoln, Logan and 2 more	54 min
Jul 13, 12:01 AM CDT	Severe Thunderstorm Warning	LBF	Custer	59 min
Jul 13, 12:20 AM CDT	Severe Thunderstorm Warning	LBF	Brown, Garfield, Holt, Keya Paha, Loup, Rock	55 min
Jul 13, 12:52 AM CDT	Special Weather Statement	LBF	Custer	38 min
Jul 13, 12:56 AM CDT	Areal Flood Advisory	LBF	Custer	4 hr
Jul 13, 1:10 AM CDT	Special Weather Statement	LBF	Garfield, Holt, Rock, Wheeler	50 min
Jul 13, 1:22 AM CDT	Areal Flood Advisory	LBF	Custer	4 hr
Jul 13, 1:39 AM CDT	Special Weather Statement	LBF	Holt, Wheeler	21 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2019 Every severe thunderstorm warning in 2019

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.