Alert archive / Nebraska / Tornado Warnings in 2013

Tornado Warning 19, NWS North Platte, NE

June 21, 2013Cherry County, Sheridan County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 21, 2013, 5:39 PM MDT for Cherry County, Sheridan County, Nebraska. It was in force for 36 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: Jun 21, 2013, 5:39 PM MDT (23:39 UTC)
Expired: Jun 21, 2013, 6:15 PM MDT
In force: 36 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Tornado: Observed
Hail: 1.75 in

Counties Cherry County, NE, Sheridan County, NE

The radar

The Rapid City radar (KUDX), 146 km from the middle of the area, began a volume at 23:39 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
Jun 21, 1:48 PM MDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 21, 5:31 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 11.7 hours before the alert went out and 142 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: 1809 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 494 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 287 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

682 
WFUS53 KLBF 212339
TORLBF
NEC031-161-220015-
/O.NEW.KLBF.TO.W.0019.130621T2339Z-130622T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
539 PM MDT FRI JUN 21 2013

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHEASTERN SHERIDAN COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 615 PM MDT

* AT 537 PM MDT...A CONFIRMED TORNADO WAS LOCATED NEAR GORDON...AND
  MOVING NORTHEAST AT 15 MPH.

  HAZARD...DAMAGING TORNADO AND GOLF BALL SIZE HAIL.

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.

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

* LOCATIONS IMPACTED INCLUDE...
  GORDON...SHELL LAKE STATE WILDLIFE MANAGEMENT AREA...IRWIN AND
  HOOVER LAKE.

THIS INCLUDES HIGHWAY 20 BETWEEN MILE MARKERS 99 AND 115.

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 4300 10206 4301 10179 4300 10179 4270 10212
      4276 10234 4301 10224 4301 10207
TIME...MOT...LOC 2339Z 228DEG 14KT 4277 10218

TORNADO...OBSERVED
HAIL...1.75IN

$$

ROBERG

2 follow-up statements

446 
WWUS53 KLBF 220000
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
700 PM CDT FRI JUN 21 2013

NEC031-161-220015-
/O.CON.KLBF.TO.W.0019.000000T0000Z-130622T0015Z/
SHERIDAN NE-CHERRY NE-
600 PM MDT FRI JUN 21 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN CHERRY AND
NORTHEASTERN SHERIDAN COUNTIES UNTIL 615 PM MDT...

AT 556 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR GORDON...AND MOVING NORTH AT 20 MPH.

HAZARD...TORNADO AND PING PONG BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

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

LOCATIONS IMPACTED INCLUDE...
IRWIN...HOOVER LAKE AND SHELL LAKE STATE WILDLIFE MANAGEMENT AREA.

THIS INCLUDES HIGHWAY 20 BETWEEN MILE MARKERS 99 AND 115.

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 4300 10206 4301 10179 4300 10179 4270 10212
      4276 10234 4301 10224 4301 10207
TIME...MOT...LOC 0000Z 200DEG 16KT 4287 10215

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

ROBERG

527 
WWUS53 KLBF 220017
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
717 PM CDT FRI JUN 21 2013

NEC031-161-220027-
/O.EXP.KLBF.TO.W.0019.000000T0000Z-130622T0015Z/
SHERIDAN NE-CHERRY NE-
617 PM MDT FRI JUN 21 2013

...THE TORNADO WARNING FOR NORTHWESTERN CHERRY AND NORTHEASTERN
SHERIDAN 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.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM CDT.

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWEST CHERRY 
COUNTY UNTIL 715 PM MDT. 

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTH PLATTE.

LAT...LON 4300 10206 4301 10179 4300 10179 4270 10212
      4276 10234 4301 10224 4301 10207
TIME...MOT...LOC 0000Z 200DEG 16KT 4287 10215

$$

ROBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 8:22 PM MDT	Severe Thunderstorm Warning	LBF	Frontier	38 min
Jun 21, 12:25 AM MDT	Severe Thunderstorm Warning	LBF	Frontier	50 min
Jun 21, 4:24 PM MDT	Severe Thunderstorm Warning	LBF	Deuel	51 min
Jun 21, 4:43 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	62 min
Jun 21, 5:14 PM MDT	Severe Thunderstorm Warning	LBF	Deuel	61 min
Jun 21, 5:19 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	56 min
Jun 21, 5:55 PM MDT	Tornado Warning	LBF	Sheridan	35 min
Jun 21, 5:56 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	49 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.