Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 43, NWS North Platte, NE

April 14, 2012Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Apr 14, 2012, 9:32 PM CDT for Custer County, Nebraska. It was in force for 43 min. 1 report 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, 9:32 PM CDT (02:32 UTC)
Expired: Apr 14, 2012, 10:15 PM CDT
In force: 43 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Custer County, NE

The radar

The North Platte radar (KLNX), 123 km from the middle of the area, began a volume at 02:32 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, 9:32 PM CDT	HAIL 1	6 Se Oconto, 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, 2:33 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.5 hours before the alert went out and 259 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: 871 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: 276 m²/s²
0-3 km storm-relative helicity: 483 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

150 
WUUS53 KLBF 150232
SVRLBF
NEC041-150315-
/O.NEW.KLBF.SV.W.0043.120415T0232Z-120415T0315Z/

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

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CUSTER COUNTY IN CENTRAL NEBRASKA...

* UNTIL 1015 PM CDT

* AT 927 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR EDDYVILLE...OR 21 MILES NORTH OF
  LEXINGTON...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BROKEN BOW...PRESSEY STATE WILDLIFE MANAGEMENT AREA...INTERSECTION
  OF HIGHWAY 183 AND CUMRO ROAD...BERWYN...MASON CITY...ANSLEY...
  WESTERVILLE...WEISSERT...HIGHWAY 183 MILE MARKER 80 AND HIGHWAY 92
  MILE MARKER 300.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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.

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

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4104 9951 4104 9971 4110 9980 4160 9961
      4141 9920 4139 9919 4120 9920
TIME...MOT...LOC 0232Z 221DEG 38KT 4112 9962
WIND...HAIL <50MPH 1.00IN

$$

JACOBS

3 follow-up statements

761 
WWUS53 KLBF 150246
SVSLBF

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

NEC041-150315-
/O.CON.KLBF.SV.W.0043.000000T0000Z-120415T0315Z/
CUSTER NE-
946 PM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN CUSTER
COUNTY UNTIL 1015 PM CDT...

AT 941 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 8 MILES EAST OF PRESSEY STATE WILDLIFE MANAGEMENT
AREA...OR 17 MILES SOUTH OF BROKEN BOW...MOVING NORTHEAST AT 35 MPH.

IN ADDITION...AT QUARTER SIZE HAIL WAS REPORTED SIX MILES SOUTHEAST 
OF OCONTO WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  BROKEN BOW...BERWYN...MASON CITY...ANSLEY...WESTERVILLE...
  WEISSERT...HIGHWAY 183 MILE MARKER 80 AND HIGHWAY 92 MILE MARKER
  300.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4104 9951 4104 9971 4111 9974 4160 9961
      4141 9920 4139 9919 4120 9920
TIME...MOT...LOC 0245Z 221DEG 38KT 4120 9952
WIND...HAIL <50MPH 1.00IN

$$

JACOBS

712 
WWUS53 KLBF 150301
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1001 PM CDT SAT APR 14 2012

NEC041-150315-
/O.CON.KLBF.SV.W.0043.000000T0000Z-120415T0315Z/
CUSTER NE-
1001 PM CDT SAT APR 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
CUSTER COUNTY UNTIL 1015 PM CDT...

AT 1000 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR ANSLEY...OR 15 MILES SOUTHEAST OF BROKEN
BOW...MOVING NORTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  WESTERVILLE AND WEISSERT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4104 9951 4104 9960 4110 9964 4153 9946
      4141 9920 4139 9919 4120 9920
TIME...MOT...LOC 0301Z 221DEG 38KT 4133 9937
WIND...HAIL <50MPH 1.00IN

$$

JACOBS

847 
WWUS53 KLBF 150314
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1014 PM CDT SAT APR 14 2012

NEC041-150324-
/O.EXP.KLBF.SV.W.0043.000000T0000Z-120415T0315Z/
CUSTER NE-
1014 PM CDT SAT APR 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CUSTER COUNTY
WILL EXPIRE AT 1015 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.  HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE
STILL POSSIBLE WITH THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 11 PM CDT.

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 4104 9951 4104 9960 4110 9964 4153 9946
      4141 9920 4139 9919 4120 9920
TIME...MOT...LOC 0314Z 221DEG 38KT 4143 9925

$$

JACOBS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 7:01 PM CDT	Tornado Warning	LBF	Blaine, Loup	16 min
Apr 14, 7:05 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer	40 min
Apr 14, 7:18 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	42 min
Apr 14, 7:35 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln, Logan	40 min
Apr 14, 7:41 PM CDT	Tornado Warning	LBF	Blaine, Custer, Loup	34 min
Apr 14, 8:07 PM CDT	Tornado Warning	LBF	Garfield, Holt, Loup, Rock	25 min
Apr 14, 8:13 PM CDT	Severe Thunderstorm Warning	LBF	Custer	47 min
Apr 14, 8:15 PM CDT	Severe Thunderstorm Warning	LBF	Custer	33 min
Apr 14, 8:29 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Holt, Loup, Rock, Wheeler	46 min
Apr 14, 8:39 PM CDT	Severe Thunderstorm Warning	LBF	Custer, Garfield, Loup	51 min
Apr 14, 8:47 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, McPherson	43 min
Apr 14, 11:18 PM CDT	River Flood Warning	LBF	Lincoln	21 hr
Apr 15, 3:59 PM CDT	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.