Alert archive / Nebraska / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 21, NWS North Platte, NE

May 7, 2006Frontier County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 7, 2006, 3:21 PM CDT for Frontier County, Nebraska. It was in force for 39 min. 2 reports 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 7, 2006, 3:21 PM CDT (20:21 UTC)
Expired: May 7, 2006, 4:00 PM CDT
In force: 39 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Frontier County, NE

The radar

The Goodland radar (KGLD), 164 km from the middle of the area, began a volume at 20:22 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

Time	Report	Where	Remark
May 7, 3:40 PM CDT	HAIL 0.88	5 Se Stockville, NE
May 7, 3:55 PM CDT	HAIL 1.75	5 Ene Stockville, NE

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

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.4 hours before the alert went out and 74 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1021 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 072021
SVRLBF
NEC063-072100-
/O.NEW.KLBF.SV.W.0021.060507T2021Z-060507T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
321 PM CDT SUN MAY 7 2006

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FRONTIER COUNTY IN SOUTHWEST NEBRASKA

* UNTIL 400 PM CDT

* AT 319 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO
  GOLF BALL SIZE.  THIS STORM WAS LOCATED 9 MILES SOUTH OF
  STOCKVILLE...OR ABOUT 16 MILES SOUTH OF CURTIS...AND MOVING
  NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  9 MILES SOUTHEAST OF NE HIGHWAY 18 MILE MARKER 5...NE HIGHWAY 18
  MILE MARKER 10 AND STOCKVILLE BY 330 PM CDT
  NE HIGHWAY 18 MILE MARKER 15 AND NE HIGHWAY 18 MILE MARKER 20 BY
  335 PM CDT
  7 MILES NORTHWEST OF NE HIGHWAY 18 MILE MARKER 25 BY 340 PM CDT
  NE HIGHWAY 23 MILE MARKER 120...NE HIGHWAY 23 MILE MARKER 121 AND
  EUSTIS BY 355 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.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 4036 10075 4034 10015 4067 9996 4066 10057

$$

MASEK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 3:37 PM CDT	Severe Thunderstorm Warning	LBF	Frontier	38 min
May 7, 4:47 PM CDT	Severe Thunderstorm Warning	LBF	Custer	58 min
May 7, 4:55 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	20 min
May 7, 5:42 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Loup	54 min
May 7, 6:10 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Loup, Rock	65 min
May 7, 6:52 PM CDT	Severe Thunderstorm Warning	LBF	Holt	26 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2006 Every severe thunderstorm warning in 2006

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.