Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 89, NWS North Platte, NE

May 19, 2012Chase County, Frontier County, Hayes County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 19, 2012, 12:16 PM MDT for Chase County, Frontier County, Hayes County, Nebraska. It was in force for 44 min. 3 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: May 19, 2012, 12:16 PM MDT (18:16 UTC)
Expired: May 19, 2012, 1:00 PM MDT
In force: 44 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.75 in
Wind: 50.0 mph

Counties Chase County, NE, Frontier County, NE, Hayes County, NE

The radar

The Goodland radar (KGLD), 132 km from the middle of the area, began a volume at 18:16 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
May 19, 12:28 PM MDT	HAIL 1.5	3 Ese Hamlet, NE	HAIL WAS PING PONG BALL IN SIZE.
May 19, 12:58 PM MDT	HAIL 1.25	11 Ese Hayes Center, NE	GROUND COVERED WHITE WITH HAIL.
May 19, 1:07 PM MDT	HAIL 1	13 E Hayes Center, NE

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

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 6.3 hours before the alert went out and 86 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: 177 J/kg
Mixed-layer CIN: -495 J/kg
Mixed-layer LCL: 732 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 423 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

367 
WUUS53 KLBF 191816
SVRLBF
NEC029-063-085-191900-
/O.NEW.KLBF.SV.W.0089.120519T1816Z-120519T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
116 PM CDT SAT MAY 19 2012

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHASE COUNTY IN SOUTHWEST NEBRASKA...
  SOUTHWESTERN FRONTIER COUNTY IN SOUTHWEST NEBRASKA...
  HAYES COUNTY IN SOUTHWEST NEBRASKA...

* UNTIL 200 PM CDT/100 PM MDT/

* AT 1212 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL SIZE
  HAIL.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 11
  MILES SOUTH OF CHAMPION TO 7 MILES SOUTH OF WAUNETA TO 16 MILES
  SOUTH OF PALISADE...AND MOVING NORTHEAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  HAMLET AROUND 125 PM CDT.
  WAUNETA AROUND 1230 PM MDT.
  ENDERS RESERVOIR STATE RECREATION AREA AND ENDERS AROUND 1235 PM
  MDT.
  HAYES CENTER AROUND 150 PM CDT.
  RED WILLOW RESERVOIR STATE RECREATION AREA AROUND 155 PM CDT.
  HAYES CENTER STATE WILDLIFE MANAGEMENT AREA AROUND 200 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
HIGHWAY 25 MILE MARKER 30 AND HIGHWAY 83 MILE MARKER 30.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4035 10167 4060 10159 4067 10092 4058 10052
      4034 10054
TIME...MOT...LOC 1816Z 233DEG 31KT 4033 10169 4034 10135
          4014 10106
WIND...HAIL <50MPH 1.75IN

$$

CDC

3 follow-up statements

178 
WWUS53 KLBF 191835
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
135 PM CDT SAT MAY 19 2012

NEC029-063-085-191900-
/O.CON.KLBF.SV.W.0089.000000T0000Z-120519T1900Z/
CHASE NE-FRONTIER NE-HAYES NE-
135 PM CDT SAT MAY 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR HAYES...
SOUTHWESTERN FRONTIER AND SOUTHEASTERN CHASE COUNTIES UNTIL 200 PM
CDT/100 PM MDT/...

AT 1230 PM MDT/130 PM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF
BALL SIZE HAIL.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM WAUNETA TO HAMLET TO 8 MILES SOUTHEAST OF PALISADE...MOVING
NORTHEAST AT 35 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  HAYES CENTER AROUND 150 PM CDT.
  RED WILLOW RESERVOIR STATE RECREATION AREA AROUND 155 PM CDT.
  HAYES CENTER STATE WILDLIFE MANAGEMENT AREA AROUND 200 PM CDT.

OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE HIGHWAY 25
MILE MARKER 30 AND HIGHWAY 83 MILE MARKER 30.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4035 10167 4060 10159 4067 10092 4058 10052
      4034 10054
TIME...MOT...LOC 1834Z 233DEG 31KT 4049 10139 4043 10119
          4031 10094
WIND...HAIL <50MPH 1.75IN

$$

CDC

434 
WWUS53 KLBF 191848
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
148 PM CDT SAT MAY 19 2012

NEC029-191858-
/O.CAN.KLBF.SV.W.0089.000000T0000Z-120519T1900Z/
CHASE NE-
1248 PM MDT SAT MAY 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHASE COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4035 10088 4051 10133 4060 10133 4067 10092
      4058 10052 4034 10054
TIME...MOT...LOC 1848Z 233DEG 31KT 4056 10126 4050 10106
          4038 10081

$$

NEC063-085-191900-
/O.CON.KLBF.SV.W.0089.000000T0000Z-120519T1900Z/
FRONTIER NE-HAYES NE-
148 PM CDT SAT MAY 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR HAYES AND
SOUTHWESTERN FRONTIER COUNTIES UNTIL 200 PM CDT...

AT 144 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 9 MILES
NORTHEAST OF WAUNETA TO HAYES CENTER TO 8 MILES WEST OF RED WILLOW
RESERVOIR STATE RECREATION AREA...MOVING NORTHEAST AT 35 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  RED WILLOW RESERVOIR STATE RECREATION AREA AROUND 155 PM CDT.
  HAYES CENTER STATE WILDLIFE MANAGEMENT AREA AROUND 200 PM CDT.

OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE HIGHWAY 83
MILE MARKER 30.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4035 10088 4051 10133 4060 10133 4067 10092
      4058 10052 4034 10054
TIME...MOT...LOC 1848Z 233DEG 31KT 4056 10126 4050 10106
          4038 10081
WIND...HAIL <50MPH 1.50IN

$$

CDC

504 
WWUS53 KLBF 191900
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
200 PM CDT SAT MAY 19 2012

NEC063-085-191910-
/O.EXP.KLBF.SV.W.0089.000000T0000Z-120519T1900Z/
FRONTIER NE-HAYES NE-
200 PM CDT SAT MAY 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR HAYES AND SOUTHWESTERN
FRONTIER COUNTIES IS BEING REISSUED...

PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER
INFORMATION.

LAT...LON 4035 10088 4051 10133 4060 10133 4067 10092
      4058 10052 4034 10054
TIME...MOT...LOC 1848Z 233DEG 31KT 4056 10126 4050 10106
          4038 10081

$$

CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 7:25 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Grant	50 min
May 19, 7:52 AM MDT	Severe Thunderstorm Warning	LBF	McPherson	38 min
May 19, 8:32 AM MDT	Severe Thunderstorm Warning	LBF	Hooker, Logan, McPherson, Thomas	43 min
May 19, 12:42 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	31 min
May 19, 12:58 PM MDT	Severe Thunderstorm Warning	LBF	Frontier, Hayes, Lincoln	47 min
May 19, 1:39 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	51 min
May 19, 2:54 PM MDT	Severe Thunderstorm Warning	LBF	Custer	51 min

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.