Alert archive / Nebraska / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 310, NWS North Platte, NE

August 9, 2014Arthur County, Garden County, Grant County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Aug 9, 2014, 6:59 PM MDT for Arthur County, Garden County, Grant County, Nebraska. It was in force for 46 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: Aug 9, 2014, 6:59 PM MDT (00:59 UTC)
Expired: Aug 9, 2014, 7:45 PM MDT
In force: 46 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Arthur County, NE, Garden County, NE, Grant County, NE

The radar

The North Platte radar (KLNX), 120 km from the middle of the area, began a volume at 00:58 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
Aug 9, 7:10 PM MDT	TSTM WND GST 60	22 Nw Arthur, NE	ESTIMATED 40 TO 60 MPH WIND GUSTS...WITH DIME SIZED HAIL.

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
Aug 9, 2:03 PM MDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.0 hours before the alert went out and 133 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: 2174 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1673 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 165 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 12.8

Open this sounding in Storm Lab

The text

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

335 
WUUS53 KLBF 100059
SVRLBF
NEC005-069-075-100145-
/O.NEW.KLBF.SV.W.0310.140810T0059Z-140810T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
659 PM MDT SAT AUG 9 2014

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA...
  NORTHEASTERN GARDEN COUNTY IN THE PANHANDLE OF NEBRASKA...
  SOUTHERN GRANT COUNTY IN WEST CENTRAL NEBRASKA...

* UNTIL 745 PM MDT

* AT 658 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED 13 MILES
  NORTHEAST OF CRESCENT LAKE NWR...AND MOVING SOUTHEAST AT 20 MPH.

  HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
           DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT
           WIND DAMAGE TO ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  ARTHUR...ADAMS FLATS...RACKETT...SWEDE LAKE...BOURQUIM HILL...
  JENSEN LAKE...VELMA...HAYTHORN LAKE...SAND PUDDIN LAKE...SPRING
  VALLEY LAKE...MCKEAG...GREEN LAKE AND COGILL LAKE.

THIS INCLUDES HIGHWAY 61 BETWEEN MILE MARKERS 116 AND 149.

THIS INCLUDES HIGHWAY 92 BETWEEN MILE MARKERS 165 AND 167.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4201 10223 4183 10146 4139 10178 4140 10187
      4169 10235
TIME...MOT...LOC 0059Z 304DEG 18KT 4182 10217

HAIL...1.50IN
WIND...60MPH

$$

TAYLOR

2 follow-up statements

209 
WWUS53 KLBF 100114
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
814 PM CDT SAT AUG 9 2014

NEC005-069-075-100145-
/O.CON.KLBF.SV.W.0310.000000T0000Z-140810T0145Z/
GARDEN NE-GRANT NE-ARTHUR NE-
714 PM MDT SAT AUG 9 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
ARTHUR...SOUTHERN GRANT AND NORTHEASTERN GARDEN COUNTIES UNTIL 745 PM
MDT...

AT 711 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED 16 MILES SOUTH OF
BINGHAM...AND MOVING SOUTHEAST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
ARTHUR...SWEDE LAKE...BOURQUIM HILL...JENSEN LAKE...VELMA...HAYTHORN
LAKE...SAND PUDDIN LAKE...SPRING VALLEY LAKE...MCKEAG...GREEN LAKE
AND COGILL LAKE.

THIS INCLUDES HIGHWAY 61 BETWEEN MILE MARKERS 117 AND 149.

THIS INCLUDES HIGHWAY 92 BETWEEN MILE MARKERS 165 AND 167.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4201 10223 4183 10146 4139 10178 4140 10187
      4169 10235
TIME...MOT...LOC 0114Z 304DEG 18KT 4178 10209

HAIL...1.00IN
WIND...60MPH

$$

TAYLOR

582 
WWUS53 KLBF 100140
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
840 PM CDT SAT AUG 9 2014

NEC005-069-075-100150-
/O.EXP.KLBF.SV.W.0310.000000T0000Z-140810T0145Z/
GARDEN NE-GRANT NE-ARTHUR NE-
740 PM MDT SAT AUG 9 2014

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ARTHUR...SOUTHERN
GRANT AND NORTHEASTERN GARDEN COUNTIES WILL EXPIRE AT 845 PM CDT/745
PM MDT/...

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.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT. 

LAT...LON 4201 10223 4183 10146 4139 10178 4140 10187
      4169 10235
TIME...MOT...LOC 0140Z 304DEG 18KT 4171 10195

$$

TAYLOR

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 6:07 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Lincoln	38 min
Aug 9, 6:28 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	62 min
Aug 9, 6:44 PM MDT	Severe Thunderstorm Warning	LBF	Custer	26 min
Aug 9, 7:28 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	46 min
Aug 9, 7:43 PM MDT	Areal Flood Advisory	LBF	Lincoln	4 hr
Aug 9, 7:44 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln, Perkins	61 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2014 Every severe thunderstorm warning in 2014

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.