Alert archive / Nebraska / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 272, NWS North Platte, NE

July 6, 2008Lincoln County, McPherson County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 6, 2008, 10:29 PM CDT for Lincoln County, McPherson County, Nebraska. It was in force for 31 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: Jul 6, 2008, 10:29 PM CDT (03:29 UTC)
Expired: Jul 6, 2008, 11:00 PM CDT
In force: 31 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon

Counties Lincoln County, NE, McPherson County, NE

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 6, 8:50 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.5 hours before the alert went out and 58 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: 933 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 1619 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLBF 070329
SVRLBF
NEC111-117-070400-
/O.NEW.KLBF.SV.W.0272.080707T0329Z-080707T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1029 PM CDT SUN JUL 6 2008

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN LINCOLN COUNTY IN SOUTHWEST NEBRASKA...
  CENTRAL MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA...
  THIS INCLUDES THE CITY OF TRYON...

* UNTIL 1100 PM CDT

* AT 1027 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS
  STORM WAS LOCATED 13 MILES SOUTH OF SCHNICK LAKE...OR 19 MILES
  SOUTHWEST OF TRYON...AND MOVING NORTHEAST AT 18 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  9 MILES SOUTHWEST OF TRYON BY 1100 PM CDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY
MORNING FOR SOUTHWESTERN NEBRASKA.

LAT...LON 4127 10126 4135 10127 4136 10126 4139 10126
      4139 10127 4158 10128 4156 10089 4126 10110
TIME...MOT...LOC 0329Z 216DEG 16KT 4138 10119

$$

TAYLOR/CDC

2 follow-up statements

000 
WWUS53 KLBF 070349
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1049 PM CDT SUN JUL 6 2008

NEC111-117-070400-
/O.CON.KLBF.SV.W.0272.000000T0000Z-080707T0400Z/
MCPHERSON NE-LINCOLN NE-
1049 PM CDT SUN JUL 6 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR NORTHWESTERN LINCOLN AND CENTRAL MCPHERSON COUNTIES...

AT 1041 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING
HAIL UP TO GOLF BALL SIZE.  THIS STORM WAS LOCATED 13 MILES SOUTH OF
SCHNICK LAKE...OR 20 MILES SOUTHWEST OF TRYON...MOVING NORTH AT 6
MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL NORTHWESTERN LINCOLN COUNTY AT 1100 PM CDT
  RURAL SOUTHWESTERN MCPHERSON COUNTY AT 1100 PM CDT

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY
MORNING FOR SOUTHWESTERN NEBRASKA.

LAT...LON 4127 10126 4135 10127 4136 10126 4139 10126
      4139 10127 4158 10128 4156 10089 4126 10110
TIME...MOT...LOC 0349Z 165DEG 5KT 4138 10125

$$

CDC

000 
WWUS53 KLBF 070404
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1103 PM CDT SUN JUL 6 2008

NEC111-117-070413-
/O.EXP.KLBF.SV.W.0272.000000T0000Z-080707T0400Z/
MCPHERSON NE-LINCOLN NE-
1103 PM CDT SUN JUL 6 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LINCOLN AND
CENTRAL MCPHERSON COUNTIES HAS EXPIRED...

THE STORM WHICH HAD PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE 
LIMITS. HOWEVER HEAVY RAIN...AND SMALL HAIL WILL STILL BE POSSIBLE 
WITH THIS STORM AND ADDITIONAL STORMS WHICH WILL MOVE THROUGH NORTH 
WESTERN LINCOLN COUNTY OVERNIGHT. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY
MORNING FOR SOUTHWESTERN NEBRASKA.

LAT...LON 4127 10126 4135 10127 4136 10126 4139 10126
      4139 10127 4158 10128 4156 10089 4126 10110
TIME...MOT...LOC 0349Z 165DEG 5KT 4138 10125

$$

TAYLOR/CDC

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS North Platte, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 6, 3:03 PM CDT, 7 hours 26 minutes earlier.

Area forecast discussion, Jul 6, 3:03 PM CDT, 7 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
303 PM CDT SUN JUL 6 2008

.DISCUSSION...
...FLASH FLOOD WATCH IN EFFECT FOR TONIGHT...

COLD FRONT STALLED TO THE SOUTH JUST SOUTH OF THE NEB/KS BORDER.
NORTH OF THE FRONT THERE HAVE BEEN ON AND OFF SHOWERS...ALONG WITH
MOSTLY CLOUDY SKIES ALL AFTERNOON...WHICH HAVE KEPT TEMPS AROUND 80
DEGREES.

TONIGHT...SOUTHWEST FLOW ALOFT WILL CAUSE TRAINING OF STORMS FROM
SOUTHWEST TO NORTHEAST. SURF DEW PTS IN THE MID TO UPPER 60S AND
PRECIP H2O AT OR ABOVE 1.5 INCHES...THUS PLENTY OF JUICE IN THE
AREA. NEXT WAVE EXPECTED TO EJECT OUT OF NE CO IN THE NEXT FEW
HOURS...ALONG WITH AN INCREASING LOW LEVEL JET. WITH 3HR FFG AROUND
2 INCHES FOR PORTIONS OF SW NEB...INTO CUSTER COUNTY...HAVE GONE
AHEAD AND POSTED A FLASH FLOOD WATCH. EVENING SHIFT WILL HAVE TO
MONITOR PORTIONS OF NORTH CENTRAL NEB FOR POSSIBLE EXPANSION OF
WATCH TO THE NORTHEAST. AS FOR SEVERE WEATHER...CAP IS STRONG FOR
SURFACE BASED CONVECTION...HOWEVER CAN NOT RULE OUT SOME ELEVATED
HAILERS. AND AFTER LAST NIGHTS...WOULD EXPECT NUMEROUS LIGHTNING
STRIKES WITH STRONGER EMBEDDED CELLS.

SYSTEM SETUP REMAINS SIMILAR FOR TOMORROW...WITH CONTINUED CHANCE
FOR STORMS...POSSIBLY HEAVY RAIN. GENERALLY PARTLY TO MOSTLY
CLOUDY SKIES WILL KEEP TEMPS IN THE 80S AGAIN. MAY SEE A FEW AREAS
REACH 90 IS MORE SUN THAN CLOUDS ARE SEEN IN LOCAL POCKETS.

BY TOMORROW NIGHT...A SECONDARY COLD FRONT WILL PUSH SE ACROSS THE
AREA...PUSHING THE SHOWERS AND TSRA TO THE SE OF FA BY TUESDAY MORN.
HIGH PRESSURE WILL BUILD INTO THE REGION FOR MID WEEK WITH TEMPS ON
THE WAY UP. ALOFT SOUTHWEST FLOW WILL TRANSITION TO MORE ZONAL
FLOW...WITH THE SETUP FOR A FEW FAST MOVING SHORT WAVES TO MOVE
ACROSS THE AREA. A STRAY STORM CAN NOT BE RULED OUT...HOWEVER WILL
KEEP FORECAST GENERALLY DRY FOR THE TIME BEING.

WEDNESDAY THROUGH SUNDAY...ZONAL TO NORTHWEST FLOW CONTINUES INTO
THROUGH THE LATTER PART OF THE WEEK AND INTO THE WEEKEND.
TEMPERATURES GENERALLY IN THE UPPER 80S TO MID 90S WITH A COUPLE
OF TROUGHS TO MOVE ACROSS THE AREA. MODELS KEEP JUMPING AROUND
WITH THE TIMING OF THE WAVES...BUT WOULD EXPECT TO SEE A FEW
ISOLATED LATE AFTERNOON STORMS TO DEVELOP IN ASSOCIATION WITH ANY
TROUGH. WITH LIMITED COVERAGE OF STORMS AND UNCERTAINTY OF
TIMING...HAVE CONTINUED A MOSTLY DRY FORECAST. WILL LIKELY ADD
SMALL POPS FOR ISOLATED OR POSSIBLY SCATTERED STORMS IN THE COMING
DAYS AS TIMING BECOMES MORE CERTAIN.

&&

.AVIATION...
A STATIONARY FRONT RESIDES SOUTH OF THE REGION OVER KANSAS.
PERSISTENT SHOWER/THUNDERSTORM DEVELOPMENT IS EXPECTED NORTH OF THE
FRONT...WHICH WILL AFFECT THE KLBF TERMINAL THROUGH MOST OF THE
AFTERNOON AND EVENING. WINDS WILL GENERALLY BE EAST/NORTHEAST
THROUGH THE EVENING...BEFORE BECOMING LIGHT AND VARIABLE BY MONDAY
MORNING. VSBY/CEILING RESTRICTIONS ARE NOT EXPECTED...EXCEPT WITH
THE PASSAGE OF ANY STRONG THUNDERSTORM ACTIVITY AT KLBF.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH FROM 7 PM CDT
/6 PM MDT/ THIS EVENING THROUGH MONDAY MORNING FOR
NEZ038-058-059-069>071.

&&

MASEK/GARNER

Hazardous weather outlook, Jul 6, 4:31 PM CDT, 5 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
431 PM CDT SUN JUL 6 2008

NEZ004>010-022>029-035>038-056>059-069>071-094-071700-
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-GARDEN-
GRANT-HOOKER-THOMAS-BLAINE-LOUP-GARFIELD-WHEELER-ARTHUR-MCPHERSON-
LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER-
WESTERN CHERRY-
431 PM CDT SUN JUL 6 2008 /331 PM MDT SUN JUL 6 2008/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA.

.DAY ONE...TONIGHT.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ALONG AND SOUTH OF
AN OSHKOSH TO ONEILL LINE. LATE SUNDAY AFTERNOON...A STATIONARY
FRONT EXTENDED NORTHEAST ACROSS KANSAS FROM A SURFACE LOW SITUATED
NEAR THE COLORADO AND KANSAS BORDER. THE COMBINATION OF AN
APPROACHING UPPER LEVEL DISTURBANCE OVER COLORADO...AND A SOUTHERLY
LOW LEVEL JET STRENGTHENING SUNDAY NIGHT WILL FOCUS THUNDERSTORM
DEVELOPMENT ALONG AND NORTH OF THE FRONT OVER KANSAS. THESE STORMS
WILL THEN MOVE SLOWLY TOWARD THE NORTHEAST ACROSS PORTIONS OF
WESTERN NEBRASKA. INSTABILITY AND VERTICAL WIND SHEAR WILL BE
FAVORABLE FOR A FEW SEVERE STORMS...PRODUCING LARGE HAIL AND
POSSIBLY DAMAGING SURFACE WINDS. IN ADDITION...THE PRESENCE OF LARGE
ATMOSPHERIC MOISTURE CONTENT...SLOW STORM MOVEMENT...AND
PERSISTENT REDEVELOPMENT OF NEW STORMS OVER THE AREA WILL LEAD TO
POSSIBLE FLASH FLOODING...MAINLY ALONG AND SOUTH OF A GRANT TO
NORTH PLATTE TO BROKEN BOW LINE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A CHANCE OF THUNDERSTORMS MONDAY THROUGH WEDNESDAY AS
WARM MOIST AIR REMAINS OVER WESTERN AND NORTH CENTRAL NEBRASKA. A
FEW OF THESE STORMS MAY BE SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED SOUTH OF AN OSHKOSH TO BROKEN BOW
LINE.

&&

THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER...
HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT
HTTP://WWW.WEATHER.GOV/NORTHPLATTE

GARNER

In the hours before

Local storm report, Jul 6, 8:37 PM CDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
837 PM CDT SUN JUL 06 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0836 PM     HAIL             5 NNW CHAMPION          40.53N 101.75W
07/06/2008  E0.75 INCH       CHASE              NE   PUBLIC

&&

13

Local storm report, Jul 6, 8:44 PM CDT, 1 hour 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
844 PM CDT SUN JUL 06 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0840 PM     HAIL             7 NW CHAMPION           40.54N 101.80W
07/06/2008  E1.75 INCH       CHASE              NE   PUBLIC

&&

13

Local storm report, Jul 6, 9:40 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
940 PM CDT SUN JUL 06 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0939 PM     HAIL             5 S GRANT               40.77N 101.73W
07/06/2008  E0.88 INCH       PERKINS            NE   FIRE DEPT/RESCUE

&&

BTAYLOR

Local storm report, Jul 6, 9:43 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
943 PM CDT SUN JUL 06 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0929 PM     HAIL             5 S GRANT               40.77N 101.73W
07/06/2008  E0.88 INCH       PERKINS            NE   FIRE DEPT/RESCUE

&&

BTAYLOR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 8:18 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	42 min
Jul 6, 9:29 PM CDT	Severe Thunderstorm Warning	LBF	Perkins	36 min
Jul 6, 10:29 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	31 min
Jul 6, 10:47 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, McPherson	28 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2008 Every severe thunderstorm warning in 2008

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.