Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS North Platte, NE

March 18, 2012Cherry County, Logan County, Thomas County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Mar 18, 2012, 9:05 PM MDT for Cherry County, Logan County, Thomas County, Nebraska. It was in force for 40 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: Mar 18, 2012, 9:05 PM MDT (03:05 UTC)
Expired: Mar 18, 2012, 9:45 PM MDT
In force: 40 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cherry County, NE, Logan County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 3 km from the middle of the area, began a volume at 03:06 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.1 hours before the alert went out and 89 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: 1047 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1861 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 185 m²/s²
0-3 km storm-relative helicity: 252 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

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

915 
WUUS53 KLBF 190305
SVRLBF
NEC031-113-171-190345-
/O.NEW.KLBF.SV.W.0008.120319T0305Z-120319T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1005 PM CDT SUN MAR 18 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHERRY COUNTY IN NORTH CENTRAL NEBRASKA...
  NORTHWESTERN LOGAN COUNTY IN WEST CENTRAL NEBRASKA...
  CENTRAL THOMAS COUNTY IN NORTH CENTRAL NEBRASKA...

* UNTIL 1045 PM CDT/945 PM MDT/

* AT 1001 PM CDT...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
  SOUTHWEST OF HIGHWAY 83 CROSSING THE DISMAL RIVER...OR 18 MILES
  SOUTH OF THEDFORD...AND MOVING NORTH AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  THEDFORD...HIGHWAY 83 CROSSING THE DISMAL RIVER...HIGHWAY 83 MILE
  MARKER 140...HIGHWAY 2 MILE MARKER 200 AND HIGHWAY 83 MILE MARKER
  160.

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 4222 10032 4166 10055 4168 10071 4174 10071
      4174 10078 4225 10075
TIME...MOT...LOC 0305Z 190DEG 50KT 4178 10064
WIND...HAIL 60MPH 1.00IN

$$

TAYLOR

2 follow-up statements

047 
WWUS53 KLBF 190335
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1035 PM CDT SUN MAR 18 2012

NEC031-113-171-190345-
/O.CON.KLBF.SV.W.0008.000000T0000Z-120319T0345Z/
LOGAN NE-THOMAS NE-CHERRY NE-
1035 PM CDT SUN MAR 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
CHERRY...CENTRAL THOMAS AND NORTHWESTERN LOGAN COUNTIES UNTIL 1045 PM
CDT/945 PM MDT/...

AT 1033 PM CDT...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 NEAR
HIGHWAY 83 CROSSING THE DISMAL RIVER...OR 14 MILES SOUTH OF
THEDFORD...MOVING NORTH AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  THEDFORD...HIGHWAY 83 MILE MARKER 140...HIGHWAY 2 MILE MARKER 200
  AND HIGHWAY 83 MILE MARKER 160.

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 4222 10032 4166 10055 4168 10071 4174 10071
      4174 10078 4225 10075
TIME...MOT...LOC 0335Z 190DEG 50KT 4181 10060
WIND...HAIL 60MPH 1.00IN

$$

TAYLOR

623 
WWUS53 KLBF 190350
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1050 PM CDT SUN MAR 18 2012

NEC031-113-171-190359-
/O.EXP.KLBF.SV.W.0008.000000T0000Z-120319T0345Z/
LOGAN NE-THOMAS NE-CHERRY NE-
1050 PM CDT SUN MAR 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHERRY...CENTRAL
THOMAS AND NORTHWESTERN LOGAN 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 GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.

LAT...LON 4222 10032 4166 10055 4168 10071 4174 10071
      4174 10078 4225 10075
TIME...MOT...LOC 0335Z 190DEG 50KT 4181 10060

$$

STOPPKOTTE

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 6:06 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, Perkins	39 min
Mar 18, 6:38 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, Lincoln, McPherson	52 min
Mar 18, 6:53 PM MDT	Severe Thunderstorm Warning	LBF	Hayes, Lincoln	52 min
Mar 18, 7:05 PM MDT	Severe Thunderstorm Warning	LBF	Cherry, Hooker, McPherson	40 min
Mar 18, 7:42 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	48 min
Mar 18, 8:04 PM MDT	Tornado Warning	LBF	Lincoln	26 min
Mar 18, 8:28 PM MDT	Tornado Warning	LBF	Lincoln, Logan, McPherson	32 min
Mar 18, 8:32 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	21 min
Mar 18, 8:43 PM MDT	Tornado Warning	LBF	Cherry	32 min
Mar 18, 9:14 PM MDT	Tornado Warning	LBF	Cherry	16 min
Mar 19, 3:19 AM MDT	Red Flag Warning	LBF	Arthur, Cherry, Deuel, Garden, Grant, Keith and 1 more	15 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.