Alert archive / Nebraska / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 91, NWS North Platte, NE

May 7, 2005Brown County, Keya Paha County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 7, 2005, 5:01 PM CDT for Brown County, Keya Paha 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, 5:01 PM CDT (22:01 UTC)
Expired: May 7, 2005, 5:31 PM CDT
In force: 30 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

Counties Brown County, NE, Keya Paha County, NE

The radar

The North Platte radar (KLNX), 80 km from the middle of the area, began a volume at 22:03 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, 10.0 hours before the alert went out and 163 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 072201
SVRLBF
NEC017-103-072230-
/O.NEW.KLBF.SV.W.0091.050507T2201Z-050507T2230Z/

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

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BROWN COUNTY IN NORTH CENTRAL NEBRASKA
  WESTERN KEYA PAHA COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 530 PM CDT

* AT 453 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 10 MILES NORTH OF AINSWORTH TO 31 MILES SOUTH OF
  LONG PINE...OR ALONG A LINE EXTENDING FROM 10 MILES NORTH OF
  AINSWORTH TO 12 MILES NORTH OF BREWSTER...AND MOVING NORTHEAST AT
  40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SPRINGVIEW AND LONG PINE BY 515 PM CDT

LAT...LON 4211 10000 4208 9966 4299 9973 4299 10018
      4283 10018

$$

HIRSCH/COLE

2 follow-up statements

000
WWUS53 KLBF 072218
SVSLBF

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

NEC017-103-072230-
/O.CON.KLBF.SV.W.0091.000000T0000Z-050507T2230Z/
BROWN NE-KEYA PAHA NE-
516 PM CDT SAT MAY 7 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 530 PM CDT FOR
WESTERN KEYA PAHA AND BROWN COUNTIES...

AT 507 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE 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 SPRINGVIEW TO LONG PINE TO HAGEN LAKE...MOVING
NORTHEAST AT 40 MPH.  

THESE STRONG STORMS WILL MOVE EAST INTO ROCK AND LOUP COUNTIES 
AROUND 530 PM.  

SEVERE THUNDERSTORMS WILL BE NEAR...
  SPRINGVIEW AND LONG PINE THROUGH 530 PM CDT

LAT...LON 4211 10000 4208 9966 4299 9973 4299 10018
      4283 10018

$$

HIRSCH

000
WWUS53 KLBF 072231
SVSLBF

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

NEC017-103-072242-
/O.EXP.KLBF.SV.W.0091.000000T0000Z-050507T2230Z/
BROWN NE-KEYA PAHA NE-
532 PM CDT SAT MAY 7 2005

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN KEYA PAHA AND BROWN
COUNTIES EXPIRES AT 530 PM CDT...

LAT...LON 4211 10000 4208 9966 4299 9973 4299 10018
      4283 10018

$$

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 14 minutes earlier.

Area forecast discussion, May 7, 1:47 PM CDT, 3 hours 14 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 11 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, 4:21 PM CDT, 40 minutes before

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

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

0410 PM     HAIL             5 N WAUNETA             40.49N 101.37W
05/07/2005  1.00 INCH        CHASE              NE   LAW ENFORCEMENT

&&

JSWEET

Local storm report, May 7, 4:23 PM CDT, 38 minutes before

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

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

0419 PM     HAIL             STAPLETON               41.48N 100.51W
05/07/2005  1.00 INCH        LOGAN              NE   PUBLIC

&&

JSWEET

Local storm report, May 7, 4:41 PM CDT, 20 minutes before

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

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

0439 PM     HAIL             10 NNW HAYES CENTER     40.64N 101.09W
05/07/2005  1.50 INCH        HAYES              NE   PUBLIC

&&

JSWEET

Local storm report, May 7, 4:45 PM CDT, 16 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, 14 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, 4 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

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, 5:13 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, 5:30 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer	30 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.