Alert archive / Nebraska / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 263, NWS North Platte, NE

August 11, 2016Logan County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 11, 2016, 6:31 PM CDT for Logan County, Nebraska. It was in force for 29 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
Aug 11, 2016, 6:31 PM CDT (23:31 UTC)
Expired
Aug 11, 2016, 7:00 PM CDT
In force
29 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

County Logan County, NE

The radar

The North Platte radar (KLNX), 35 km from the middle of the area, began a volume at 23:30 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.

IssuedProductOfficeLasted
Aug 11, 6:29 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.5 hours before the alert went out and 60 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 2016-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 171 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, N. Platte/Lee Bi, NE at 12:00Z on 2016-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.193958Sfc1 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
171 J/kg
Mixed-layer CIN
-444 J/kg
Mixed-layer LCL
2116 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

802 
WUUS53 KLBF 112331
SVRLBF
NEC113-120000-
/O.NEW.KLBF.SV.W.0263.160811T2331Z-160812T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
631 PM CDT THU AUG 11 2016

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN LOGAN COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 700 PM CDT

* AT 630 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 11 MILES NORTH OF
  STAPLETON...MOVING EAST AT 10 MPH.

  HAZARD...PING PONG BALL SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT 
           DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. 

* LOCATIONS IMPACTED INCLUDE...
  BROWN LAKE.

THIS INCLUDES HIGHWAY 83 BETWEEN MILE MARKERS 122 AND 129.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4162 10055 4173 10058 4173 10029 4158 10031
TIME...MOT...LOC 2330Z 260DEG 8KT 4164 10049 

HAIL...1.50IN
WIND...<50MPH
 
$$

CDC
2 follow-up statements
423 
WWUS53 KLBF 112344
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
644 PM CDT THU AUG 11 2016

NEC113-120000-
/O.CON.KLBF.SV.W.0263.000000T0000Z-160812T0000Z/
LOGAN NE-
644 PM CDT THU AUG 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHEASTERN LOGAN COUNTY...

AT 644 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 13 MILES NORTH OF
STAPLETON...MOVING EAST AT 10 MPH.

HAZARD...QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
BROWN LAKE.

THIS INCLUDES HIGHWAY 83 BETWEEN MILE MARKERS 122 AND 129.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4162 10051 4173 10052 4173 10029 4158 10031
TIME...MOT...LOC 2344Z 252DEG 9KT 4167 10043 

HAIL...1.00IN
WIND...<50MPH
 
$$

CDC
701 
WWUS53 KLBF 112358
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
658 PM CDT THU AUG 11 2016

NEC113-120008-
/O.EXP.KLBF.SV.W.0263.000000T0000Z-160812T0000Z/
LOGAN NE-
658 PM CDT THU AUG 11 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LOGAN COUNTY WILL
EXPIRE AT 700 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL
IS STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FOR
WEST CENTRAL NEBRASKA.

LAT...LON 4162 10051 4173 10052 4173 10029 4158 10031
TIME...MOT...LOC 2356Z 260DEG 8KT 4167 10043 

$$

CDC

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 8:15 PM CDTSpecial Weather StatementLBFGarden45 min
Aug 10, 8:28 PM CDTSpecial Weather StatementLBFCherry47 min
Aug 10, 9:02 PM CDTSpecial Weather StatementLBFCherry43 min
Aug 10, 11:01 PM CDTSpecial Weather StatementLBFCherry44 min
Aug 10, 11:54 PM CDTSpecial Weather StatementLBFGarden51 min
Aug 11, 3:34 PM CDTSpecial Weather StatementLBFValley26 min
Aug 11, 3:49 PM CDTSpecial Weather StatementLBFGarfield56 min
Aug 11, 3:54 PM CDTSpecial Weather StatementLBFGarfield, Wheeler66 min
Aug 11, 4:07 PM CDTSevere Thunderstorm WarningLBFGarfield, Wheeler23 min
Aug 11, 4:16 PM CDTSpecial Weather StatementLBFHolt44 min
Aug 11, 4:29 PM CDTSpecial Weather StatementLBFGarfield46 min
Aug 11, 4:56 PM CDTSpecial Weather StatementLBFLogan, McPherson64 min
Aug 11, 5:02 PM CDTSevere Thunderstorm WarningLBFGarfield, Holt, Wheeler14 min
Aug 11, 5:47 PM CDTSevere Thunderstorm WarningLBFMcPherson28 min
Aug 11, 6:00 PM CDTSpecial Weather StatementLBFLogan60 min
Aug 11, 6:19 PM CDTSpecial Weather StatementLBFHooker41 min
Aug 11, 6:23 PM CDTSpecial Weather StatementLBFCuster52 min
Aug 11, 6:29 PM CDTSpecial Weather StatementLBFSheridan46 min
Aug 11, 6:53 PM CDTSpecial Weather StatementLBFHooker52 min
Aug 11, 6:55 PM CDTSpecial Weather StatementLBFCuster50 min
Aug 11, 6:58 PM CDTSpecial Weather StatementLBFSheridan47 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2016Every severe thunderstorm warning in 2016

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.