Alert archive / Nebraska / Tornado Warnings in 2015

Tornado Warning 3, NWS North Platte, NE

May 15, 2015Cherry County, Sheridan County, Nebraska

NWS North Platte, NE issued this tornado warning at May 15, 2015, 9:12 PM MDT for Cherry County, Sheridan County, Nebraska. It was in force for 33 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 15, 2015, 9:12 PM MDT (03:12 UTC)
Expired: May 15, 2015, 9:45 PM MDT
In force: 33 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties Cherry County, NE, Sheridan County, NE

The radar

The Rapid City radar (KUDX), 143 km from the middle of the area, began a volume at 03:13 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 15, 7:55 PM MDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 3.2 hours before the alert went out and 139 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: 489 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 248 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

283 
WFUS53 KLBF 160312
TORLBF
NEC031-161-160345-
/O.NEW.KLBF.TO.W.0003.150516T0312Z-150516T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
912 PM MDT FRI MAY 15 2015

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 945 PM MDT

* AT 911 PM MDT...A CONFIRMED TORNADO WAS LOCATED NEAR GORDON...AND
  MOVING NORTHEAST AT 30 MPH.

  HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL.

  SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO.

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
           TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
           LIKELY.

* THE TORNADO WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN SHERIDAN
  AND NORTHWESTERN CHERRY COUNTIES...INCLUDING THE FOLLOWING
  LOCATIONS...SHELL LAKE STATE WILDLIFE MANAGEMENT AREA AND HOOVER
  LAKE.

THIS INCLUDES HIGHWAY 20 BETWEEN MILE MARKERS 105 AND 111.

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 10208 4300 10186 4275 10215 4286 10234
      4301 10220 4301 10209
TIME...MOT...LOC 0312Z 213DEG 27KT 4287 10217

TORNADO...OBSERVED
HAIL...1.00IN

$$

STOPPKOTTE

2 follow-up statements

826 
WWUS53 KLBF 160325
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1025 PM CDT FRI MAY 15 2015

NEC031-161-160345-
/O.CON.KLBF.TO.W.0003.000000T0000Z-150516T0345Z/
SHERIDAN NE-CHERRY NE-
925 PM MDT FRI MAY 15 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN CHERRY AND
NORTHEASTERN SHERIDAN COUNTIES UNTIL 945 PM MDT...

AT 924 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 12 MILES NORTHEAST OF GORDON...AND MOVING NORTH AT 30
MPH.

HAZARD...TORNADO.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
         LIKELY.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME NORTHEASTERN SHERIDAN AND EXTREME
  NORTHWESTERN CHERRY COUNTIES.

THIS INCLUDES HIGHWAY 20 BETWEEN MILE MARKERS 105 AND 111.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 4300 10208 4300 10186 4275 10215 4286 10234
      4301 10220 4301 10209
TIME...MOT...LOC 0325Z 194DEG 24KT 4298 10211

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

STOPPKOTTE

439 
WWUS53 KLBF 160343
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1043 PM CDT FRI MAY 15 2015

NEC031-161-160353-
/O.EXP.KLBF.TO.W.0003.000000T0000Z-150516T0345Z/
SHERIDAN NE-CHERRY NE-
943 PM MDT FRI MAY 15 2015

...THE TORNADO WARNING FOR NORTHWESTERN CHERRY AND NORTHEASTERN
SHERIDAN COUNTIES WILL EXPIRE AT 1045 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT.

LAT...LON 4300 10208 4300 10186 4275 10215 4286 10234
      4301 10220 4301 10209
TIME...MOT...LOC 0343Z 194DEG 24KT 4310 10207

$$

STOPPKOTTE

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 6:00 PM MDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	45 min
May 15, 6:16 PM MDT	Severe Thunderstorm Warning	LBF	Garden	44 min
May 15, 6:47 PM MDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	43 min
May 15, 7:18 PM MDT	Severe Thunderstorm Warning	LBF	Deuel, Garden, Keith	42 min
May 15, 7:20 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	40 min
May 15, 7:20 PM MDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	40 min
May 15, 7:21 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	39 min
May 15, 7:40 PM MDT	Tornado Warning Tornado observed	LBF	Cherry, Sheridan	35 min
May 15, 7:54 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Grant, Keith	51 min
May 15, 7:58 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	47 min
May 15, 8:01 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, Perkins	44 min
May 15, 8:38 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Sheridan	52 min
May 15, 8:45 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant, Hooker, Keith, Lincoln, McPherson	45 min
May 15, 9:21 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Lincoln, Logan, Thomas	39 min
May 15, 9:30 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Cherry, Grant, Hooker, Keith, McPherson	45 min
May 15, 10:18 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Hooker	42 min
May 16, 5:18 PM MDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	42 min

Nearby

Tornado Warnings in Nebraska, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.