Alert archive / Nebraska / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 95, NWS North Platte, NE

May 7, 2005Blaine County, Custer County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 7, 2005, 5:30 PM CDT for Blaine County, Custer County, Nebraska. It was in force for 30 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 7, 2005, 5:30 PM CDT (22:30 UTC)
Expired: May 7, 2005, 6:00 PM CDT
In force: 30 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

Counties Blaine County, NE, Custer County, NE

The radar

The North Platte radar (KLNX), 72 km from the middle of the area, began a volume at 22:32 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.

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
May 7, 1:50 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.5 hours before the alert went out and 91 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: 36 J/kg
Mixed-layer CIN: -225 J/kg
Mixed-layer LCL: 1695 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -119 m²/s²
0-3 km storm-relative helicity: -147 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.

000
WUUS53 KLBF 072231
SVRLBF
NEC009-041-072300-
/O.NEW.KLBF.SV.W.0095.050507T2230Z-050507T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
530 PM CDT SAT MAY 7 2005

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CUSTER COUNTY IN CENTRAL NEBRASKA
  BLAINE COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 600 PM CDT

* AT 522 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING LARGE DAMAGING
  HAIL UP TO GOLF BALL SIZE.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM MILBURN TO BROKEN BOW...OR ALONG A LINE EXTENDING
  FROM 13 MILES SOUTHEAST OF BREWSTER TO BROKEN BOW...AND MOVING EAST
  AT 25 MPH. ANOTHER SEVERE STORM WITH 60 MPH WINDS WILL MOVE INTO 
  SOUTHWEST CUSTER COUNTY DURING THIS TIME.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BERWYN BY 540 PM CDT
  WEISSERT BY 545 PM CDT
  WESTERVILLE BY 550 PM CDT
  ANSLEY BY 555 PM CDT
  COMSTOCK AND SARGENT BY 600 PM CDT
  15 MILES SOUTH OF ARNOLD AROUND 545 PM CDT
 
LAT...LON 4207 10024 4108 10020 4105 9920 4173 9926
      4172 9970 4208 9970

$$

CDC/HIRSCH

1 follow-up statement

000
WWUS53 KLBF 072244
SVSLBF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
543 PM CDT SAT MAY 7 2005

NEC009-041-072300-
/O.CON.KLBF.SV.W.0095.000000T0000Z-050507T2300Z/
CUSTER NE-BLAINE NE-
543 PM CDT SAT MAY 7 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 600 PM CDT FOR
BLAINE AND CUSTER COUNTIES...

AT 537 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF
BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 16 MILES NORTH OF
SARGENT TO BROKEN BOW...OR ALONG A LINE EXTENDING FROM 8 MILES
NORTHWEST OF TAYLOR TO BROKEN BOW...MOVING EAST AT 35 MPH.
ANOTHER SEVERE THUNDERSTORM WITH 60 MPH WINDS IS ENTERING SOUTHWEST 
CUSTER COUNTY.

SEVERE THUNDERSTORMS WILL BE NEAR...
  BROKEN BOW BY 535 PM CDT
  BERWYN BY 545 PM CDT
  ANSLEY...WEISSERT AND SARGENT BY 550 PM CDT
  MASON CITY AND WESTERVILLE BY 555 PM CDT
  COMSTOCK BY 600 PM CDT

LAT...LON 4207 10024 4108 10020 4105 9920 4173 9926
      4172 9970 4208 9970

$$

CDC/HIRSCH

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 May 7, 1:47 PM CDT, 3 hours 43 minutes earlier.

Area forecast discussion, May 7, 1:47 PM CDT, 3 hours 43 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
147 PM CDT SAT MAY 7 2005

.DISCUSSION...
SEVERE WEATHER DISCUSSION...ATMOSPHERE SHOWING STRONG LINEAR SHEAR
THIS AFTN. RICHER MOISTURE APPEARS TO BE LINED UP N-S VICINITY
HIGHWAY 83. COLD FRONT WILL PUSH EAST TO NEAR KVTN-KLBF LINE THIS
AFTERNOON WITH LINE OF THUNDERSTORMS DEVELOPING AND PUSHING SLOWLY
EAST TONIGHT. LARGE HAIL IS THE PRIMARY CONCERN WITH FREEZING LEVEL
AROUND 10KFT AGL.

SUNDAY...WRAP AROUND CLOUDS AND SHRA AS THE H5 COLD POOL DRIFTS EAST
ACROSS SD.

MONDAY...SFC HIGH PRESSURE AND SHORT WAVE RIDGE PRODUCE DRY AND
PARTLY CLOUDY SKIES.

TUESDAY...ATM SETS UP FOR SUPERCELL STORMS DEVELOPING ACROSS THE
NEB PANHANDLE IN THE AFTN.  SFC LOW...H5 LOW...GOOD THETA E
ADVECTION...TRIPLE PT VCNTY KIBM...GOOD DIRECTIONAL SHEAR.

WEDNESDAY THROUGH SATURDAY...TIME HEIGHTS FOR GFS AND DGEX BOTH
SHOW LOW LEVEL MOISTURE AND COLD AIR ALOFT PRODUCING COOL AND
GENERALLY SHRA TYPE WEATHER. THE H5 LOW MOVES VERY SLOWLY EAST
DURING THIS TIME FRAME SO FCST IS FOR SHRA WED AND THU. DRY FOR FRI
AND SAT AS TYPICAL FCST UNCERTAINTIES DEVELOP.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...NONE.

&&

CDC

Hazardous weather outlook, May 7, 2:50 PM CDT, 2 hours 40 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
250 PM CDT SAT MAY 7 2005

NEZ004>010-022>029-035>038-056>059-069>071-094-081100-
ARTHUR NE-BLAINE NE-BOYD NE-BROWN NE-CHASE NE-CUSTER NE-DEUEL NE-
EASTERN CHERRY NE-FRONTIER NE-GARDEN NE-GARFIELD NE-GRANT NE-
HAYES NE-HOLT NE-HOOKER NE-KEITH NE-KEYA PAHA NE-LINCOLN NE-LOGAN NE-
LOUP NE-MCPHERSON NE-PERKINS NE-ROCK NE-SHERIDAN NE-THOMAS NE-
WESTERN CHERRY NE-WHEELER NE-
INCLUDING THE CITIES OF...AINSWORTH...ARNOLD...ARTHUR...BASSETT...
BIG SPRINGS...BREWSTER...BROKEN BOW...BURWELL...CHAPPELL...CURTIS...
GORDON...GRANT...HAY SPRINGS...HAYES CENTER...IMPERIAL...MULLEN...
NORTH PLATTE...ONEILL...OGALLALA...OSHKOSH...RUSHVILLE...SPENCER...
SPRINGVIEW...STAPLETON...TAYLOR...THEDFORD...TRYON AND VALENTINE
251 PM CDT SAT MAY 7 2005

...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF WESTERN AND
NORTH CENTRAL NEBRASKA THIS EVENING...

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

.DAY ONE...TONIGHT

A SURFACE FRONT IS EXPECTED TO BE THE FOCUS OF THUNDERSTORM
DEVELOPMENT THIS EVENING AS IT MOVES NORTHEAST ACROSS NEBRASKA. WITH
MOIST AND VERY UNSTABLE CONDITIONS IN PLACE ACROSS WESTERN
NEBRASKA...SEVERE STORMS ARE LIKELY. THE MAIN THREAT WILL BE LARGE
HAIL AND DAMAGING WINDS. HOWEVER THERE IS AN SLIGHT CHANCE OF AN
ISOLATED TORNADO.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN NORTH CENTRAL
NEBRASKA ON SUNDAY. WITH THE FRONT THROUGH CENTRAL NEBRASKA...THE
RISK AREA IS ALONG AND EAST OF HIGHWAY 281.

THEN FAIRLY QUIET WEATHER IS EXPECTED UNTIL TUESDAY NIGHT WHEN
ANOTHER SYSTEM MOVES THROUGH THE PLAINS. THEN...THUNDERSTORMS ARE
AGAIN EXPECTED WEDNESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION CAN BE EXPECTED TONIGHT...MAINLY EAST OF A
MERRIMAN TO IMPERIAL LINE...HOWEVER WEST ACTIVATION MAY BE REQUIRED
TO THE WEST. SPOTTER ACTIVATION MAY ALSO BE REQUIRED TOMORROW
AFTERNOON.

MASEK

In the hours before

Local storm report, May 7, 4:45 PM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
445 PM CDT SAT MAY 07 2005

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

0415 PM     HAIL             40 N THEDFORD           42.56N 100.57W
05/07/2005  1.00 INCH        CHERRY             NE   PUBLIC

&&

BYRD

Local storm report, May 7, 4:47 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
447 PM CDT SAT MAY 07 2005

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

0444 PM     HAIL             2 N BREWSTER            41.97N 99.87W
05/07/2005  0.88 INCH        BLAINE             NE   LAW ENFORCEMENT

&&

JSWEET

Local storm report, May 7, 4:57 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
457 PM CDT SAT MAY 07 2005

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

0445 PM     HAIL             7 S DICKENS             40.72N 100.99W
05/07/2005  2.75 INCH        LINCOLN            NE   TRAINED SPOTTER

&&

BYRD

Local storm report, May 7, 5:11 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
511 PM CDT SAT MAY 07 2005

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

0450 PM     HAIL             4 NE JOHNSTOWN          42.61N 100.00W
05/07/2005  1.00 INCH        BROWN              NE   TRAINED SPOTTER

&&

BYRD

Local storm report, May 7, 5:28 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
528 PM CDT SAT MAY 07 2005

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

0400 PM     HAIL             9 NNW ANSELMO           41.74N 99.93W
05/07/2005  1.00 INCH        CUSTER             NE   TRAINED SPOTTER

&&

BYRD

Local storm report, May 7, 5:30 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
530 PM CDT SAT MAY 07 2005

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

0528 PM     HAIL             6 SE SPRINGVIEW         42.76N 99.67W
05/07/2005  0.75 INCH        KEYA PAHA          NE   PUBLIC

&&

JSWEET

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 7:02 PM CDT	Severe Thunderstorm Warning	LBF	Hooker	33 min
May 6, 7:27 PM CDT	Severe Thunderstorm Warning	LBF	Garden	32 min
May 6, 7:30 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	22 min
May 6, 7:52 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	53 min
May 6, 8:15 PM CDT	Severe Thunderstorm Warning	LBF	Sheridan	60 min
May 6, 8:29 PM CDT	Severe Thunderstorm Warning	LBF	Arthur	22 min
May 6, 10:55 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	51 min
May 6, 11:41 PM CDT	Severe Thunderstorm Warning	LBF	Logan, McPherson	64 min
May 7, 2:56 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	66 min
May 7, 3:10 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	65 min
May 7, 3:24 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	36 min
May 7, 3:36 PM CDT	Severe Thunderstorm Warning	LBF	Chase	37 min
May 7, 3:47 PM CDT	Severe Thunderstorm Warning	LBF	Thomas	28 min
May 7, 3:48 PM CDT	Tornado Warning	LBF	Lincoln	28 min
May 7, 3:58 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	53 min
May 7, 4:08 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Logan	37 min
May 7, 4:18 PM CDT	Tornado Warning	LBF	Custer, Lincoln	27 min
May 7, 4:20 PM CDT	Severe Thunderstorm Warning	LBF	Hayes	25 min
May 7, 4:23 PM CDT	Severe Thunderstorm Warning	LBF	Brown	37 min
May 7, 4:33 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	57 min
May 7, 4:42 PM CDT	Severe Thunderstorm Warning	LBF	Cherry, Keya Paha	48 min
May 7, 4:47 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer	43 min
May 7, 5:01 PM CDT	Severe Thunderstorm Warning	LBF	Brown, Keya Paha	30 min
May 7, 5:13 PM CDT	Severe Thunderstorm Warning	LBF	Loup, Rock	49 min
May 7, 5:25 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	35 min
May 7, 5:26 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	41 min
May 7, 5:40 PM CDT	Severe Thunderstorm Warning	LBF	Garfield, Holt	29 min
May 7, 6:23 PM CDT	Severe Thunderstorm Warning	LBF	Custer	37 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2005 Every severe thunderstorm warning in 2005

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.