Alert archive / Nebraska / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 112, NWS North Platte, NE

June 10, 2006Arthur County, Garden County, Keith County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jun 10, 2006, 4:26 PM MDT for Arthur County, Garden County, Keith County, Nebraska. It was in force for 49 min. 4 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: Jun 10, 2006, 4:26 PM MDT (22:26 UTC)
Expired: Jun 10, 2006, 5:15 PM MDT
In force: 49 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

Counties Arthur County, NE, Garden County, NE, Keith County, NE

The radar

The North Platte radar (KLNX), 115 km from the middle of the area, began a volume at 22:29 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
Jun 10, 4:45 PM MDT	HAIL 1	16 Nnw Ogallala, NE
Jun 10, 4:50 PM MDT	WATERSPOUT 0	17 Nw Ogallala, NE	PUBLIC SITED 2 WATERSPOUTS ON LAKE MCCONAUGHY AT 1750 CDT
Jun 10, 5:05 PM MDT	HAIL 1	1 W Arthur, NE	WINDS ESTIMATED AT 40 TO 50 MPH.
Jun 10, 5:25 PM MDT	TORNADO	Roscoe, NE	NUMEROUS ROAD SIGNS DOWN WITHIN ESTIMATED 300 YARD WIDE AREA OF DEBRIS. IN ADDITION...DUST CLOUD WITH ROTATION OBSERVED SOUTH OF THE INTERSTATE. WINDS ESTIMATED AT 75 TO 80 MPH. EXACT TIME OF EVENT AN ESTIMATE AND WILL BE CONFIRMED AT A LATER TIME.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 19 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 10, 1:46 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.4 hours before the alert went out and 103 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: 3 J/kg
Mixed-layer CIN: -578 J/kg
Mixed-layer LCL: 1751 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 78 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 102226
SVRLBF
NEC005-069-101-102315-
/O.NEW.KLBF.SV.W.0112.060610T2226Z-060610T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
426 PM MDT SAT JUN 10 2006

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ARTHUR COUNTY IN WEST CENTRAL NEBRASKA...
  SOUTHEASTERN GARDEN COUNTY IN THE PANHANDLE OF NEBRASKA...
  KEITH COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 515 PM MDT

* AT 419 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 10
  MILES SOUTHWEST OF BOURQUIM HILL...OR ABOUT 16 MILES NORTHEAST OF
  OSHKOSH...AND MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HAYTHORN LAKE BY 440 PM MDT...
  7 MILES SOUTH OF ARTHUR BY 445 PM MDT...
  BUCKTAIL LAKE BY 505 PM MDT...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

LAT...LON 4172 10196 4173 10211 4135 10219 4123 10203
      4103 10202 4103 10127 4138 10127 4137 10141
      4172 10143

$$

CDC

2 follow-up statements

000 
WWUS53 KLBF 102246
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
545 PM CDT SAT JUN 10 2006

NEC005-069-101-102315-
/O.CON.KLBF.SV.W.0112.000000T0000Z-060610T2315Z/
ARTHUR NE-GARDEN NE-KEITH NE-
445 PM MDT SAT JUN 10 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM MDT
FOR KEITH...SOUTHEASTERN GARDEN AND ARTHUR COUNTIES...

AT 435 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM ARTHUR TO EAGLE GULCH
CAMPGROUND...OR ALONG A LINE EXTENDING FROM ARTHUR TO 13 MILES
NORTHWEST OF OGALLALA...MOVING EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  HIGHWAY 61 MILE MARKER 100 BY 450 PM MDT...
  OGALLALA AND KINGSLEY DAM BY 455 PM MDT...
  BUCKTAIL LAKE...ROSCOE AND KEYSTONE BY 500 PM MDT...
  INTERSTATE 80 MILE MARKER 140 BY 510 PM MDT...
  PAXTON AND SARBEN BY 515 PM MDT...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

IF ON OR NEAR BIG MAC...GET OUT OF THE WATER AND MOVE INDOORS OR 
INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES 
FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE 
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. 
DONT BE CAUGHT ON THE WATER IN A THUNDERSTORM

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT
SATURDAY EVENING FOR SOUTHWEST NEBRASKA. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 900 PM MDT SATURDAY EVENING FOR WESTERN
NEBRASKA.

LAT...LON 4172 10196 4173 10211 4135 10219 4123 10203
      4103 10202 4103 10127 4138 10127 4137 10141
      4172 10143

$$

CDC

000 
WWUS53 KLBF 102317
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
616 PM CDT SAT JUN 10 2006

NEC005-069-101-102326-
/O.EXP.KLBF.SV.W.0112.000000T0000Z-060610T2315Z/
ARTHUR NE-GARDEN NE-KEITH NE-
516 PM MDT SAT JUN 10 2006

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GARDEN EXPIRES 
AT 515 PM MDT...

THE STORM HAS EXITED THIS PORTION OF THE WARNED AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT
SATURDAY EVENING FOR SOUTHWEST NEBRASKA. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 900 PM MDT SATURDAY EVENING FOR WESTERN
NEBRASKA.

LAT...LON 4172 10196 4173 10211 4135 10219 4123 10203
      4103 10202 4103 10127 4138 10127 4137 10141
      4172 10143

$$

CDC

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 Jun 10, 12:56 PM MDT, 3 hours 30 minutes earlier.

Area forecast discussion, Jun 10, 12:56 PM MDT, 3 hours 30 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
156 PM CDT SAT JUN 10 2006

.DISCUSSION...
SEVERE WEATHER APPEARS IMMINENT AGAIN THIS AFTERNOON. BOTH THE NAM
AND THE GFS FIRE OFF A MASSIVE MCS ACROSS THE PANHANDLE WHICH TRACKS
MOSTLY SE TAKING AIM ON SW NEB...LBF AND POINTS WEST. THE GFS TAKES
THE MCS RIGHT OVER LBF PRODUCING 2.50 INCHES OF CONVECTIVE
FEEDBACK. THE NAM IS FARTHER WEST WITH LESS FEEDBACK. AT 18Z A MCS
APPEARS TO BE ORGANIZING ACROSS ERN WY. CELL MOTION ATTM IS NEWD AT
25 MPH. IF THIS MOTION CONTINUES STORMS COULD ENTER FCST AREA AOA
22Z.

ADDITIONAL SEVERE THUNDERSTORM ACTIVITY...ANOTHER MCS COULD FIRE
SUNDAY EVENING ACROSS FAR SWRN NEB AS THE SFC FRONT WILL BE LOCATED
ACROSS THE WRN HIGH PLAINS AND ANOTHER LOW WILL TRACK ALONG THE
FRONT.

MONDAY AND BEYOND...THE HOT DRY SWRN U.S. RIDGE IS FCST TO AMPLIFY
ACROSS THE CENTRAL PLAINS IN CONJUNCTION WITH LOW PRESSURE DEVELOPING
ACROSS THE HIGH PLAINS...THE DAKOTAS AND THEN DROPPING THROUGH
NEBRKASA AS A COLD FRONT LATE NEXT WEEK. MODEL RUN TO RUN CONTINUITY
HAS BEEN IMPROVING TO THE POINT WHERE TEMPS ARE NOW FCST TO RISE INTO
THE 90S WEDS AND THUR FOLLOWED BY A COLD FRONT AND COOLER TEMPS
FRIDAY AND SATURDAY. FCST SKILL THIS FAR OUT IS HIGHLY DEPENDENT ON
MODEL VERIFICATION SKILL...WHICH HAS BEEN POOR THIS YEAR IN THESE
TYPES OF EVENTS. HOWEVER...IF THE GFS AND ECMWF ARE ACCURATE
PREDICTING 580+DM H10-5 THICKNESSES NEXT WEEK...MAX TEMPS IN THE
UPPER 90S TO LOW 100S WILL OCCUR. THE FCST IS AN UPGRADE TOWARD
THIS GOAL WITH HIGHS CURRENTLY IN THE RANGE OF 90 TO 95. THESE FCST
TEMPS ARE ONE CATEGORY...ABOUT 3F...BELOW THE HPC NUMBERS WHICH
FEATURES UPPER 90S. WE NOT THAT BULLISH.

THE NAM12 WAS USED FOR MONDAY AND TUESDAY MAX TEMPS WHICH SHOWS 2M
TEMPS GRADUALLY RISING THROUGH THE 80S TO NEAR 90 ON TUESDAY. THIS IS
ONE CATEGORY BELOW THE HPC NUMBERS. PCPN CHCS CONTINUE AT 20 PERCENT
LATE THURSDAY AND FRIDAY FOR THE COLD FRONT.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...NONE.

&&

CDC

Hazardous weather outlook, Jun 10, 2:04 PM MDT, 2 hours 22 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
304 PM CDT SAT JUN 10 2006

NEZ004>010-022>029-035>038-056>059-069>071-094-111000-
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-
304 PM CDT SAT JUN 10 2006 /204 PM MDT SAT JUN 10 2006/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.
THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORM DEVELOPMENT TONIGHT
IN AREAS WEST OF A LINE FROM VALENTINE IN CHERRY COUNTY...TO BROKEN
BOW IN CUSTER COUNTY. AN UPPER LEVEL DISTURBANCE LIFTING NORTHEAST
INTO WESTERN NEBRASKA WILL HELP INITIATE STORMS...SOME WHICH WILL
LIKELY BECOME SEVERE WHILE MOVING ACROSS THE EASTERN PANHANDLE
INTO WESTERN NEBRASKA. MODERATE INSTABILITY AND DEEP LAYER
VERTICAL WIND SHEAR WILL SUPPORT SUPERCELL DEVELOPMENT...WITH AN
ISOLATED TORNADO OR TWO ALSO POSSIBLE. LARGE HAIL AND DAMAGING
WINDS WILL BE THE PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

AS THE FRONT SINKS TO THE SOUTHWEST TOWARD THE HIGH PLAINS ON
SUNDAY THE FOCUS FOR SEVERE THUNDERSTORM DEVELOPMENT WILL BE WEST
OF HIGHWAY 61...FROM MERRIMAN IN WESTERN CHERRY COUNTY...TO
IMPERIAL IN CHASE COUNTY. MONDAY AND BEYOND BUILDING HEIGHTS OVER
THE PLAINS WILL REDUCE THE POTENTIAL FOR STORM DEVELOPMENT THROUGH
FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED IN THE EASTERN PANHANDLE
AND WESTERN NEBRASKA TONIGHT.

&&

THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER...
HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE (ALL LOWERCASE)

KECK

In the hours before

Local storm report, Jun 10, 3:41 PM MDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
441 PM CDT SAT JUN 10 2006

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

0440 PM     TORNADO          7 NNE GORDON            42.90N 102.15W
06/10/2006                   SHERIDAN           NE   LAW ENFORCEMENT

            SPOTTER REPORTS TORNADO ON GROUND 7 EAST 4 NORTH OF
            GORDON. REPORT RELAYED BY GORDON SHERIFF 1630 CDT SHERIFF
            REPORTS MOBILE HOME AND BARN DAMAGED

&&

JSWEET

Local storm report, Jun 10, 3:53 PM MDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
453 PM CDT SAT JUN 10 2006

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

0424 PM     DOWNBURST        15 NW GORDON            42.96N 102.41W
06/10/2006                   SHERIDAN           NE   DEPT OF HIGHWAYS

            52 KNOT GUST WAS REPORTED BY AUTOMATED SENSORS AT 1624
            CDT NEAR WHITECLAY

&&

JSWEET

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 6:13 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	27 min
Jun 9, 6:15 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	45 min
Jun 9, 6:34 PM MDT	Tornado Warning	LBF	Cherry	41 min
Jun 9, 7:16 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	59 min
Jun 10, 2:41 PM MDT	Severe Thunderstorm Warning	LBF	Garden	49 min
Jun 10, 3:02 PM MDT	Tornado Warning	LBF	Garden	28 min
Jun 10, 3:10 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	20 min
Jun 10, 3:31 PM MDT	Tornado Warning	LBF	Garden	59 min
Jun 10, 3:36 PM MDT	Tornado Warning	LBF	Cherry, Sheridan	54 min
Jun 10, 3:56 PM MDT	Tornado Warning	LBF	Cherry	34 min
Jun 10, 4:12 PM MDT	Severe Thunderstorm Warning	LBF	Deuel	63 min
Jun 10, 4:20 PM MDT	Severe Thunderstorm Warning	LBF	Grant, Hooker	55 min
Jun 10, 4:29 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	46 min
Jun 10, 4:36 PM MDT	Tornado Warning	LBF	Cherry	39 min
Jun 10, 4:54 PM MDT	Tornado Warning	LBF	Keith	36 min
Jun 10, 5:02 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	58 min
Jun 10, 5:05 PM MDT	Tornado Warning	LBF	Arthur, McPherson	31 min
Jun 10, 5:30 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	60 min
Jun 10, 5:58 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	32 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.