Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 42, NWS North Platte, NE

April 14, 2012Keith County, Lincoln County, McPherson County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 14, 2012, 7:47 PM MDT for Keith County, Lincoln County, McPherson County, Nebraska. It was in force for 43 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: Apr 14, 2012, 7:47 PM MDT (01:47 UTC)
Expired: Apr 14, 2012, 8:30 PM MDT
In force: 43 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Keith County, NE, Lincoln County, NE, McPherson County, NE

The radar

The North Platte radar (KLNX), 93 km from the middle of the area, began a volume at 01:51 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
Apr 14, 7:48 PM MDT	HAIL 1	4 N Paxton, NE
Apr 14, 7:51 PM MDT	HAIL 0.88	7 N Paxton, NE

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 14, 1:33 PM MDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 1.8 hours before the alert went out and 229 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: 1435 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: 91 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.

667 
WUUS53 KLBF 150147
SVRLBF
NEC101-111-117-150230-
/O.NEW.KLBF.SV.W.0042.120415T0147Z-120415T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
847 PM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN KEITH COUNTY IN SOUTHWEST NEBRASKA...
  NORTHWESTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA...
  WESTERN MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 930 PM CDT/830 PM MDT/

* AT 746 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 7 MILES
  NORTHWEST OF SARBEN...OR 17 MILES EAST OF OGALLALA...AND MOVING
  NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EASTERN
  KEITH...NORTHWESTERN LINCOLN AND WESTERN MCPHERSON COUNTIES...
  INCLUDING THE FOLLOWING LOCATIONS HIGHWAY 92 MILE MARKER 200.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4125 10161 4139 10149 4140 10140 4149 10141
      4169 10122 4137 10072 4104 10135
TIME...MOT...LOC 0147Z 222DEG 35KT 4123 10141
WIND...HAIL 60MPH 1.00IN

$$

TAYLOR

2 follow-up statements

160 
WWUS53 KLBF 150215
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
915 PM CDT SAT APR 14 2012

NEC101-150224-
/O.CAN.KLBF.SV.W.0042.000000T0000Z-120415T0230Z/
KEITH NE-
815 PM MDT SAT APR 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN KEITH COUNTY IS
CANCELLED...

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

LAT...LON 4118 10126 4139 10127 4141 10132 4145 10133
      4152 10139 4153 10138 4169 10122 4137 10072
TIME...MOT...LOC 0214Z 222DEG 35KT 4134 10120

$$

NEC111-117-150230-
/O.CON.KLBF.SV.W.0042.000000T0000Z-120415T0230Z/
LINCOLN NE-MCPHERSON NE-
915 PM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
MCPHERSON AND NORTHWESTERN LINCOLN COUNTIES UNTIL 930 PM CDT...

AT 909 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 10 MILES NORTH OF SARBEN...OR 23 MILES SOUTHWEST OF
TRYON...MOVING NORTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
NORTHWESTERN LINCOLN AND WESTERN MCPHERSON COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4118 10126 4139 10127 4141 10132 4145 10133
      4152 10139 4153 10138 4169 10122 4137 10072
TIME...MOT...LOC 0214Z 222DEG 35KT 4134 10120
WIND...HAIL <50MPH 1.00IN

$$

TAYLOR

669 
WWUS53 KLBF 150227
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
927 PM CDT SAT APR 14 2012

NEC111-117-150237-
/O.EXP.KLBF.SV.W.0042.000000T0000Z-120415T0230Z/
LINCOLN NE-MCPHERSON NE-
927 PM CDT SAT APR 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MCPHERSON AND
NORTHWESTERN LINCOLN COUNTIES WILL EXPIRE AT 930 PM CDT...

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

LAT...LON 4118 10126 4139 10127 4141 10132 4145 10133
      4152 10139 4153 10138 4169 10122 4137 10072
TIME...MOT...LOC 0227Z 222DEG 35KT 4143 10108

$$

TAYLOR

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 6:01 PM MDT	Tornado Warning	LBF	Blaine, Loup	16 min
Apr 14, 6:05 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Custer	40 min
Apr 14, 6:18 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	42 min
Apr 14, 6:35 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan	40 min
Apr 14, 6:41 PM MDT	Tornado Warning	LBF	Blaine, Custer, Loup	34 min
Apr 14, 7:07 PM MDT	Tornado Warning	LBF	Garfield, Holt, Loup, Rock	25 min
Apr 14, 7:13 PM MDT	Severe Thunderstorm Warning	LBF	Custer	47 min
Apr 14, 7:15 PM MDT	Severe Thunderstorm Warning	LBF	Custer	33 min
Apr 14, 7:29 PM MDT	Severe Thunderstorm Warning	LBF	Garfield, Holt, Loup, Rock, Wheeler	46 min
Apr 14, 7:39 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Garfield, Loup	51 min
Apr 14, 8:32 PM MDT	Severe Thunderstorm Warning	LBF	Custer	43 min
Apr 14, 10:18 PM MDT	River Flood Warning	LBF	Lincoln	21 hr
Apr 15, 2:59 PM MDT	High Wind Warning	LBF	Blaine, Boyd, Brown, Cherry, Custer, Garfield and 6 more	6 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2012 Every severe thunderstorm warning in 2012

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.