Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 13, NWS Cheyenne, WY

May 5, 2012Banner County, Kimball County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at May 5, 2012, 5:23 PM MDT for Banner County, Kimball County, Nebraska. It was in force for 55 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 5, 2012, 5:23 PM MDT (23:23 UTC)
Expired: May 5, 2012, 6:18 PM MDT
In force: 55 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Banner County, NE, Kimball County, NE

The radar

The Cheyenne radar (KCYS), 106 km from the middle of the area, began a volume at 23:25 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

Denver, CO (KDNR), launched 12:00Z, 11.4 hours before the alert went out and 183 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: 2826 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 33 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.

572 
WUUS55 KCYS 052323
SVRCYS
NEC007-105-060030-
/O.NEW.KCYS.SV.W.0013.120505T2323Z-120506T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
523 PM MDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BANNER COUNTY IN THE PANHANDLE OF NEBRASKA...
  NORTHERN KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA...

* UNTIL 630 PM MDT

* AT 521 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 8 MILES EAST OF ALBIN...OR 19 MILES NORTHWEST OF KIMBALL...
  AND MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HARRISBURG AROUND 550 PM MDT.

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.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4163 10338 4146 10338 4128 10351 4127 10402
      4164 10403
TIME...MOT...LOC 2323Z 249DEG 24KT 4141 10394
WIND...HAIL 60MPH 1.50IN

$$

LIEBL

3 follow-up statements

953 
WWUS55 KCYS 052342
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
542 PM MDT SAT MAY 5 2012

NEC007-105-060030-
/O.CON.KCYS.SV.W.0013.000000T0000Z-120506T0030Z/
BANNER NE-KIMBALL NE-
542 PM MDT SAT MAY 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
KIMBALL AND SOUTHERN BANNER COUNTIES UNTIL 630 PM MDT...

AT 539 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR OLIVER CAMPGROUND...OR 11 MILES NORTHWEST OF
KIMBALL...MOVING EAST AT 35 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN
KIMBALL AND SOUTHERN BANNER 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.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4155 10338 4146 10338 4135 10346 4128 10351
      4128 10376 4127 10402 4149 10403
TIME...MOT...LOC 2343Z 264DEG 29KT 4129 10380
WIND...HAIL <50MPH 1.00IN

$$

LIEBL

012 
WWUS55 KCYS 060001
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
601 PM MDT SAT MAY 5 2012

NEC007-060011-
/O.CAN.KCYS.SV.W.0013.000000T0000Z-120506T0030Z/
BANNER NE-
601 PM MDT SAT MAY 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN BANNER COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED.

LAT...LON 4135 10389 4139 10378 4139 10349 4139 10343
      4128 10351 4128 10376 4127 10391
TIME...MOT...LOC 0001Z 259DEG 33KT 4129 10365

$$

NEC105-060030-
/O.CON.KCYS.SV.W.0013.000000T0000Z-120506T0030Z/
KIMBALL NE-
601 PM MDT SAT MAY 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
KIMBALL COUNTY UNTIL 630 PM MDT...

AT 557 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL.  THIS
STORM WAS LOCATED NEAR KIMBALL...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHERN KIMBALL COUNTY.

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.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4135 10389 4139 10378 4139 10349 4139 10343
      4128 10351 4128 10376 4127 10391
TIME...MOT...LOC 0001Z 259DEG 33KT 4129 10365
WIND...HAIL <50MPH 1.75IN

$$

LIEBL

010 
WWUS55 KCYS 060018
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
618 PM MDT SAT MAY 5 2012

NEC105-060028-
/O.CAN.KCYS.SV.W.0013.000000T0000Z-120506T0030Z/
KIMBALL NE-
618 PM MDT SAT MAY 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN KIMBALL COUNTY IS
CANCELLED...

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

LAT...LON 4135 10389 4139 10378 4139 10349 4139 10343
      4128 10351 4128 10376 4127 10391
TIME...MOT...LOC 0018Z 259DEG 33KT 4132 10345

$$

LIEBL

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 5, 2:48 PM MDT	Special Weather Statement	CYS	Banner	42 min
May 5, 2:54 PM MDT	Severe Thunderstorm Warning	CYS	Banner	39 min
May 5, 3:49 PM MDT	Severe Thunderstorm Warning	CYS	Banner	41 min
May 5, 4:21 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	39 min
May 5, 4:27 PM MDT	Severe Thunderstorm Warning	CYS	Banner	33 min
May 5, 4:49 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Kimball	41 min
May 5, 5:02 PM MDT	Severe Thunderstorm Warning	CYS	Banner, Cheyenne, Kimball	43 min
May 5, 5:13 PM MDT	Severe Thunderstorm Warning	CYS	Kimball	47 min
May 5, 5:37 PM MDT	Tornado Warning	CYS	Kimball	38 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.