Alert archive / Nebraska / Tornado Warnings in 2013

Tornado Warning 7, NWS North Platte, NE

May 18, 2013Arthur County, Keith County, McPherson County, Nebraska

NWS North Platte, NE issued this tornado warning at May 18, 2013, 6:35 PM MDT for Arthur County, Keith County, McPherson County, Nebraska. It was in force for 25 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 18, 2013, 6:35 PM MDT (00:35 UTC)
Expired: May 18, 2013, 7:00 PM MDT
In force: 25 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Arthur County, NE, Keith County, NE, McPherson County, NE

The radar

The North Platte radar (KLNX), 114 km from the middle of the area, began a volume at 00:34 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.

Issued	Product	Office	Lasted
May 18, 1:42 PM MDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.6 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: 2765 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1159 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

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

626 
WFUS53 KLBF 190035
TORLBF
NEC005-101-117-190100-
/O.NEW.KLBF.TO.W.0007.130519T0035Z-130519T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
635 PM MDT SAT MAY 18 2013

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA...
  NORTH CENTRAL KEITH COUNTY IN SOUTHWEST NEBRASKA...
  WESTERN MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 700 PM MDT/800 PM CDT/

* AT 630 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR BELMAR...AND MOVING NORTHEAST AT 55 MPH.

  HAZARD...DEVELOPING TORNADO AND QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
           SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
           OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
           EXTENSIVE TREE DAMAGE IS LIKELY.

* LOCATIONS IMPACTED INCLUDE...
  MCKEAG...BUCKTAIL LAKE...BUCKTAIL...FLATTS...DIAMOND BAR LAKE...
  CALORA AND SCHNICK LAKE.

THIS INCLUDES HIGHWAY 61 BETWEEN MILE MARKERS 105 AND 120.

THIS INCLUDES HIGHWAY 92 BETWEEN MILE MARKERS 126 AND 190.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4140 10198 4142 10198 4170 10130 4150 10117
      4125 10190 4139 10199
TIME...MOT...LOC 0034Z 243DEG 47KT 4137 10184

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

POWER

3 follow-up statements

814 
WWUS53 KLBF 190043
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
743 PM CDT SAT MAY 18 2013

NEC005-101-117-190100-
/O.CON.KLBF.TO.W.0007.000000T0000Z-130519T0100Z/
KEITH NE-MCPHERSON NE-ARTHUR NE-
643 PM MDT SAT MAY 18 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN ARTHUR...WESTERN
MCPHERSON AND NORTH CENTRAL KEITH COUNTIES UNTIL 700 PM MDT/800 PM
CDT/...

AT 639 PM MDT...A CONFIRMED TORNADO WAS LOCATED NEAR MCKEAG...AND
MOVING NORTHEAST AT 55 MPH.

HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL.

SOURCE...PUBLIC CONFIRMED TORNADO. A TORNADO WAS REPORTED NEAR EAGLE 
CANYON AND LAKEVIEW.

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
         SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
         OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
         EXTENSIVE TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
BUCKTAIL LAKE...BUCKTAIL...FLATTS...DIAMOND BAR LAKE...CALORA AND
SCHNICK LAKE.

THIS INCLUDES HIGHWAY 61 BETWEEN MILE MARKERS 105 AND 120.

THIS INCLUDES HIGHWAY 92 BETWEEN MILE MARKERS 126 AND 190.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4140 10198 4142 10198 4170 10130 4150 10117
      4125 10190 4139 10199
TIME...MOT...LOC 0041Z 243DEG 47KT 4141 10173

TORNADO...OBSERVED
HAIL...1.00IN

$$

POWER

576 
WWUS53 KLBF 190048
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
748 PM CDT SAT MAY 18 2013

NEC005-101-117-190100-
/O.CON.KLBF.TO.W.0007.000000T0000Z-130519T0100Z/
KEITH NE-MCPHERSON NE-ARTHUR NE-
648 PM MDT SAT MAY 18 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ARTHUR...
WESTERN MCPHERSON AND NORTH CENTRAL KEITH COUNTIES UNTIL 700 PM
MDT/800 PM CDT/...

AT 644 PM MDT...A CONFIRMED TORNADO WAS LOCATED NEAR MCKEAG...AND
MOVING NORTHEAST AT 55 MPH.

HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL.

SOURCE...PUBLIC CONFIRMED TORNADO.

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
         SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
         OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
         EXTENSIVE TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
BUCKTAIL LAKE...BUCKTAIL...FLATTS...DIAMOND BAR LAKE AND SCHNICK
LAKE.

THIS INCLUDES HIGHWAY 61 BETWEEN MILE MARKERS 108 AND 119.

THIS INCLUDES HIGHWAY 92 BETWEEN MILE MARKERS 171 AND 190.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4148 10181 4149 10181 4170 10130 4150 10117
      4132 10170 4148 10182
TIME...MOT...LOC 0048Z 243DEG 47KT 4145 10162

TORNADO...OBSERVED
HAIL...1.00IN

$$

POWER

797 
WWUS53 KLBF 190101
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
801 PM CDT SAT MAY 18 2013

NEC005-101-117-190111-
/O.EXP.KLBF.TO.W.0007.000000T0000Z-130519T0100Z/
KEITH NE-MCPHERSON NE-ARTHUR NE-
701 PM MDT SAT MAY 18 2013

...THE TORNADO WARNING FOR SOUTHEASTERN ARTHUR...WESTERN MCPHERSON
AND NORTH CENTRAL KEITH COUNTIES HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4148 10181 4149 10181 4170 10130 4150 10117
      4132 10170 4148 10182
TIME...MOT...LOC 0048Z 243DEG 47KT 4145 10162

$$

POWER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 6:09 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	51 min
May 18, 6:12 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	48 min
May 18, 6:15 PM MDT	Tornado Warning	LBF	Arthur, Deuel, Garden, Keith	30 min
May 18, 6:20 PM MDT	Severe Thunderstorm Warning	LBF	Logan, McPherson, Thomas	40 min
May 18, 6:40 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	50 min
May 18, 6:48 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, McPherson, Perkins	42 min
May 18, 6:56 PM MDT	Severe Thunderstorm Warning	LBF	Chase	49 min
May 18, 7:04 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant, Hooker, McPherson	41 min
May 18, 7:09 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Brown, Cherry, Thomas	51 min
May 18, 7:45 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	45 min
May 19, 12:15 PM MDT	Areal Flood Advisory	LBF	Garden, Keith, Logan, McPherson, Thomas	136 days
May 19, 12:16 PM MDT	Areal Flood Advisory	LBF	Garden, Keith	9 hr
May 19, 2:56 PM MDT	Severe Thunderstorm Warning	LBF	Garfield	49 min
May 19, 3:21 PM MDT	Severe Thunderstorm Warning	LBF	Wheeler	39 min
May 19, 4:05 PM MDT	Severe Thunderstorm Warning	LBF	Garfield, Loup	40 min
May 19, 4:20 PM MDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha	40 min
May 19, 4:26 PM MDT	Severe Thunderstorm Warning	LBF	Garfield, Wheeler	49 min
May 19, 4:34 PM MDT	Severe Thunderstorm Warning	LBF	Loup, Rock	41 min
May 19, 4:39 PM MDT	Severe Thunderstorm Warning	LBF	Garfield	51 min

Nearby

Tornado Warnings in Nebraska, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.