Alert archive / Nebraska / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 21, NWS North Platte, NE

May 16, 2017Cherry County, Sheridan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 16, 2017, 12:01 AM MDT for Cherry County, Sheridan 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
May 16, 2017, 12:01 AM MDT (06:01 UTC)
Expired
May 16, 2017, 12:45 AM MDT
In force
44 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cherry County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 133 km from the middle of the area, began a volume at 06:03 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

Rapid City, SD (KRAP), launched 00:00Z, 6.0 hours before the alert went out and 183 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, Rapid City, SD at 00:00Z on 2017-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 555 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 00:00Z on 2017-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 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
555 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
1143 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.7

Open this sounding in Storm Lab

The text

As transmitted.

020 
WUUS53 KLBF 160601
SVRLBF
NEC031-161-160645-
/O.NEW.KLBF.SV.W.0021.170516T0601Z-170516T0645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
1201 AM MDT TUE MAY 16 2017

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northwestern Cherry County in north central Nebraska...
  East central Sheridan County in the Panhandle of Nebraska...

* Until 1245 AM MDT

* At 1200 AM MDT, a severe thunderstorm was located 22 miles south of
  Gordon, moving east at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Highway 61 crossing the Snake River, Big Hill, Morgan Lake, Billys
  Lake, Irwin, Highway 27 crossing the Niobrara River, Intersection
  of Highway 20 and Irwin Road, Rock Hill, Bayonne, Intersection of
  Highway 27 and Mills Road, Highway 61 Crossing The Niobrara River,
  Indian Hill, Intersection of Highway 61 and Shadbolt Road and Lone
  Butte.

This includes the following highways...
 Highway 20 between mile markers 110 and 131.
 Highway 61 between mile markers 190 and 220.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

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

&&

LAT...LON 4236 10217 4263 10238 4298 10187 4251 10123
TIME...MOT...LOC 0600Z 247DEG 44KT 4248 10212 

HAIL...1.00IN
WIND...60MPH
 
$$

Jacobs
1 follow-up statement
133 
WWUS53 KLBF 160627
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
1227 AM MDT TUE MAY 16 2017

NEC031-161-160645-
/O.CON.KLBF.SV.W.0021.000000T0000Z-170516T0645Z/
Cherry NE-Sheridan NE-
1227 AM MDT TUE MAY 16 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM MDT
FOR NORTHWESTERN CHERRY AND EAST CENTRAL SHERIDAN COUNTIES...

At 1226 AM MDT, a severe thunderstorm was located 16 miles southeast
of Gordon, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Highway 61 crossing the Snake River, Morgan Lake, Highway 61 Crossing
The Niobrara River, Irwin, Indian Hill, Intersection of Highway 61
and Shadbolt Road, Highway 27 crossing the Niobrara River,
Intersection of Highway 20 and Irwin Road, Rock Hill, Bayonne and
Intersection of Highway 27 and Mills Road.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
North Platte.

&&

LAT...LON 4240 10200 4267 10230 4298 10187 4251 10123
TIME...MOT...LOC 0626Z 219DEG 40KT 4270 10192 

HAIL...1.00IN
WIND...60MPH
 
$$

Jacobs

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 8:15 PM MDTSpecial Weather StatementLBFCuster45 min
May 15, 8:42 PM MDTSpecial Weather StatementLBFChase, Hayes48 min
May 15, 9:00 PM MDTSpecial Weather StatementLBFWheeler45 min
May 15, 9:15 PM MDTSevere Thunderstorm WarningLBFChase, Hayes45 min
May 15, 9:28 PM MDTSpecial Weather StatementLBFHolt47 min
May 15, 9:36 PM MDTSevere Thunderstorm WarningLBFHolt24 min
May 15, 9:41 PM MDTSpecial Weather StatementLBFPerkins49 min
May 15, 9:52 PM MDTSpecial Weather StatementLBFHayes38 min
May 15, 9:55 PM MDTSevere Thunderstorm WarningLBFFrontier, Hayes, Lincoln35 min
May 15, 10:21 PM MDTSpecial Weather StatementLBFKeith, Perkins39 min
May 15, 10:35 PM MDTSpecial Weather StatementLBFSheridan40 min
May 15, 10:37 PM MDTSpecial Weather StatementLBFLincoln53 min
May 15, 10:46 PM MDTSevere Thunderstorm WarningLBFSheridan44 min
May 15, 11:28 PM MDTSpecial Weather StatementLBFSheridan47 min
May 16, 12:38 AM MDTSevere Thunderstorm WarningLBFCherry37 min
May 16, 5:13 PM MDTSevere Thunderstorm WarningLBFChase, Perkins62 min
May 16, 5:30 PM MDTSpecial Weather StatementLBFDeuel45 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2017Every severe thunderstorm warning in 2017

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.