Alert archive / Nebraska / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 21, NWS North Platte, NE

May 6, 2008Keith County, Lincoln County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 6, 2008, 1:55 PM MDT for Keith County, Lincoln County, Nebraska. It was in force for 50 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 6, 2008, 1:55 PM MDT (19:55 UTC)
Expired
May 6, 2008, 2:45 PM MDT
In force
50 min
Issued by
NWS North Platte, NE
Area
Storm-based polygon

Counties Keith County, NE, Lincoln County, NE

The radar

The North Platte radar (KLNX), 89 km from the middle of the area, began a volume at 19:57 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.

What was reported inside it

TimeReportWhereRemark
May 6, 2:13 PM MDTHAIL 0.7510 Nnw Sutherland, NE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
May 6, 1:50 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 7.9 hours before the alert went out and 54 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 2008-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 468 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 2008-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939587897Sfc1 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
468 J/kg
Mixed-layer CIN
-331 J/kg
Mixed-layer LCL
1005 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KLBF 061955
SVRLBF
NEC101-111-062045-
/O.NEW.KLBF.SV.W.0021.080506T1955Z-080506T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
255 PM CDT TUE MAY 6 2008

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN KEITH COUNTY IN SOUTHWEST NEBRASKA...
  NORTHWESTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 345 PM CDT/245 PM MDT/

* AT 152 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED OVER EAST CENTRAL
  KEITH COUNTY...OR 22 MILES NORTHEAST OF OGALLALA...AND MOVING
  NORTHEAST AT 19 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL NORTHWESTERN LINCOLN COUNTY AT 310 PM CDT
  RURAL NORTHEASTERN KEITH COUNTY AT 210 PM MDT

LAT...LON 4139 10108 4124 10095 4113 10143 4138 10148
TIME...MOT...LOC 1955Z 243DEG 16KT 4127 10133

$$

13
1 follow-up statement
000 
WWUS53 KLBF 062019
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
317 PM CDT TUE MAY 6 2008

NEC101-111-062045-
/O.CON.KLBF.SV.W.0021.000000T0000Z-080506T2045Z/
LINCOLN NE-KEITH NE-
217 PM MDT TUE MAY 6 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM
MDT/345 PM CDT/ FOR NORTHEASTERN KEITH AND NORTHWESTERN LINCOLN
COUNTIES...

AT 314 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. 
THIS STORM WAS LOCATED OVER EXTREME NORTHWESTERN LINCOLN COUNTY...OR 
22 MILES SOUTHWEST OF TRYON...MOVING NORTHEAST AT 31 MPH. ANOTHER 
STRONG STORM WAS LOCATED NORTHWEST OF PAXTON...MOVING NORTHEAST AT 
AROUND 30 MPH AND MAY ALSO CONTAIN HAIL THE SIZE OF PENNIES. 

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL NORTHWESTERN LINCOLN COUNTY AT 330 PM CDT

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM MDT
TUESDAY EVENING/700 PM CDT TUESDAY EVENING/ FOR NORTH CENTRAL
NEBRASKA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL
900 PM MDT TUESDAY EVENING/1000 PM CDT TUESDAY EVENING/ FOR WESTERN
NEBRASKA.

LAT...LON 4139 10108 4124 10095 4113 10143 4138 10148
TIME...MOT...LOC 2017Z 230DEG 27KT 4132 10118

$$

13

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 2:03 PM MDTSevere Thunderstorm WarningLBFBrown, Cherry42 min
May 6, 2:13 PM MDTSevere Thunderstorm WarningLBFMcPherson47 min
May 6, 2:24 PM MDTSevere Thunderstorm WarningLBFBrown, Cherry51 min
May 6, 2:52 PM MDTSevere Thunderstorm WarningLBFLincoln38 min
May 6, 3:13 PM MDTSevere Thunderstorm WarningLBFBrown, Rock47 min
May 6, 3:22 PM MDTSevere Thunderstorm WarningLBFPerkins38 min
May 6, 3:24 PM MDTSevere Thunderstorm WarningLBFCuster, Lincoln, Logan51 min
May 6, 3:29 PM MDTTornado WarningLBFBrown, Rock46 min
May 6, 3:32 PM MDTSevere Thunderstorm WarningLBFLincoln43 min
May 6, 3:58 PM MDTSevere Thunderstorm WarningLBFBrown, Rock37 min
May 6, 3:59 PM MDTSevere Thunderstorm WarningLBFLincoln, Perkins46 min
May 6, 4:06 PM MDTSevere Thunderstorm WarningLBFCuster24 min
May 6, 4:10 PM MDTSevere Thunderstorm WarningLBFHolt50 min
May 6, 4:16 PM MDTSevere Thunderstorm WarningLBFCuster, Lincoln44 min
May 6, 4:25 PM MDTSevere Thunderstorm WarningLBFLoup, Rock50 min
May 6, 4:30 PM MDTSevere Thunderstorm WarningLBFCuster30 min
May 6, 4:31 PM MDTTornado WarningLBFFrontier, Hayes, Lincoln29 min
May 6, 4:45 PM MDTSevere Thunderstorm WarningLBFLincoln15 min
May 6, 4:54 PM MDTSevere Thunderstorm WarningLBFGarfield, Holt, Wheeler56 min
May 6, 5:00 PM MDTTornado WarningLBFFrontier, Hayes, Lincoln45 min
May 6, 5:19 PM MDTSevere Thunderstorm WarningLBFChase, Hayes26 min
May 6, 5:41 PM MDTTornado WarningLBFFrontier49 min
May 6, 5:45 PM MDTSevere Thunderstorm WarningLBFHayes30 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2008Every severe thunderstorm warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.