Alert archive / Nebraska / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 68, NWS North Platte, NE

May 22, 2004Blaine County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at May 22, 2004, 6:30 PM CDT for Blaine 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 22, 2004, 6:30 PM CDT (23:30 UTC)
Expired: May 22, 2004, 7:00 PM CDT
In force: 30 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Blaine County, NE

The radar

The North Platte radar (KLNX), 45 km from the middle of the area, began a volume at 23:32 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.5 hours before the alert went out and 102 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: 1983 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -191 m²/s²
0-3 km storm-relative helicity: -93 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.

963 
WUUS53 KLBF 222330
SVRLBF
NEC009-230000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
628 PM CDT SAT MAY 22 2004

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

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

* UNTIL 700 PM CDT

* AT 623 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR BREWSTER...OR
  ABOUT OVER BREWSTER...AND MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL EASTERN BLAINE COUNTY AROUND 640 PM CDT
  RURAL NORTHEASTERN BLAINE COUNTY AROUND 650 PM CDT

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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.

LAT...LON 4206 10025 4177 10022 4178 9970 4206 9972

$$

POWER

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 22, 3:03 PM CDT, 3 hours 27 minutes earlier.

Area forecast discussion, May 22, 3:03 PM CDT, 3 hours 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
303 PM CDT SAT MAY 22 2004

...FORECAST CONCERNS SEVERE WEATHER/TORNADO POTENTIAL THIS EVENING...

.NEAR TERM...SFC LOW APPEARS TO BE RETROGRADING WEST NR THE
CO/NEB/KS BORDER AT 19Z PERHAPS SETTING UP A DANGEROUS TRIPLE PT
VCNTY KIML.  WEAK COLD FRONT/THETA E ADVECTION IS
MOVING S THRU HOOKER-LOGAN COUNTY.  STG MID LEVEL FRONTOGENESIS
JUST NORTH OF THAT AREA AIDING MID LEVEL MOISTURE POOLING.

A 250 MB SPEED MAX IS NOW POISED TO MOVE OUT OF COLO AND THRU FCST
AREA.  18Z LBF MODIFIED SOUNDING FOR MCK INDICATES -11 LI.  SHEAR IS
ADEQUATE FOR SUPERCELL DEVELOPMENT WITH PRIMARY TORNADO THREAT
EXTENDING ALONG AND EAST OF A LINE FROM IML-LBF-BBW.

KEAR OBS DEWPOINT IN THE LOWER 60S SUGGEST MOISTURE IS VERY SHALLOW
AND THEREFORE FAILING TO REACH LBF OR LXN.  STNARY WARM FRONT AT 19Z
IS DRAPED FARTHER SOUTH FROM KIML-KMCK LINE WHERE DEEPER MOISTURE IS
LIKELY PRESENT FOR TORNADO FORMATION.

EXCELLENT WAA WITH TEMPS IN THE MID 90S ACROSS CNTL KS APPEARS AIMED
AT SCNTL NEB BUT A SLIGHT BACKING COULD OCCUR WHICH WOULD PRODUCE
EVEN GREATER INSTABILITY ACROSS SWRN NEB THIS AFTN.

ALL SAID...EXPECT AN ACTIVE EVENING AHEAD...MOSTLY ALONG AND SOUTH
OF HIGHWAY 2 WITH TORNADO THREAT GREATEST FROM KIML-KLBF-KBBW LINE.

BEYOND...LITTLE CHANGE TO THE GOING FORECAST.  ACTIVE SEVERE WEATHER
PATTERN CONTINUES.

&&

.LBF...WATCHES/WARNINGS/ADVISORIES...TORNADO WATCH UNTIL 7 PM MDT (8
PM CDT) PARTS OF WESTERN/NORTH CENTRAL NEBRASKA.

&&

CDC

Hazardous weather outlook, May 22, 3:00 PM CDT, 3 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTH PLATTE NE
300 PM CDT SAT MAY 22 2004

NEZ004>010-022>029-035>038-056>059-069>071-094-231100-
ARTHUR-BLAINE-BOYD-BROWN-CHASE-CUSTER-DEUEL-EASTERN CHERRY-FRONTIER-
GARDEN-GARFIELD-GRANT-HAYES-HOLT-HOOKER-KEITH-KEYA PAHA-LINCOLN-
LOGAN-LOUP-MCPHERSON-PERKINS-ROCK-SHERIDAN-THOMAS-WESTERN CHERRY-
WHEELER-
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
300 PM CDT SAT MAY 22 2004

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

.DAY ONE...TONIGHT

SEVERE THUNDERSTORM DEVELOPMENT WILL BE POSSIBLE OVER ALL OF THE
OUTLOOK AREA THROUGH THE EARLY MORNING HOURS. A FRONTAL BOUNDARY AT
THE SURFACE EXTENDING FROM SOUTHWEST TO NORTHEAST ACROSS THE OUTLOOK
AREA. THIS FRONT WILL SERVE AS A FOCUS FOR THUNDERSTORM DEVELOPMENT
AS A SERIES OF UPPER LEVEL DISTURBANCES WILL MOVE OUT OF THE CENTRAL
ROCKIES ALONG WITH STRONG WINDS ALOFT. LARGE HAIL...DAMAGING WINDS
WILL BE THE PRIMARY THREATS ACROSS THE OUTLOOK AREA AS A WHOLE.
HOWEVER A FEW STORMS THAT FORM NEAR OR ALONG THE FRONTAL BOUNDARY
WILL HAVE THE CAPABILITY OF PRODUCING A TORNADO. AT THIS POINT THE
AREA FOR GREATEST RISK OF TORNADO DEVELOPMENT WILL BE NEAR AND SOUTH
OF HIGHWAY 2.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE FRONT CONTINUING OVER NEBRASKA THROUGH TUESDAY WILL RESULT IN A
CHANCE OF THUNDERSTORMS EACH DAY UNTIL WEDNESDAY. THERE IS A SLIGHT
RISK OF SEVERE THUNDERSTORMS SUNDAY IN NORTH CENTRAL THROUGH
NORTHWEST NEBRASKA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL PROBABLY BE NECESSARY THIS AFTERNOON AND
TONIGHT...AND ACTIVATION MAY BE REQUIRED SUNDAY.

13

In the hours before

Local storm report, May 22, 5:56 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
556 PM CDT SAT MAY 22 2004

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

0544 PM     HAIL             6 NNW HALSEY            41.98N 100.31W
05/22/2004  0.88 INCH        THOMAS             NE   TRAINED SPOTTER

&&

MB

Local storm report, May 22, 5:59 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
559 PM CDT SAT MAY 22 2004

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

0558 PM     HAIL             7 S PURDUM              41.97N 100.26W
05/22/2004  3.00 INCH        BLAINE             NE   TRAINED SPOTTER

&&

MB

Local storm report, May 22, 6:14 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
614 PM CDT SAT MAY 22 2004

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

0610 PM     HAIL             HALSEY                  41.90N 100.27W
05/22/2004  0.75 INCH        THOMAS             NE   TRAINED SPOTTER

&&

MB

Local storm report, May 22, 6:16 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
616 PM CDT SAT MAY 22 2004

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

0605 PM     HAIL             3 N STAPLETON           41.52N 100.51W
05/22/2004  1.00 INCH        LOGAN              NE   TRAINED SPOTTER

            70+MPH THUNDERSTORM WINDS

&&

MB

Local storm report, May 22, 6:17 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
617 PM CDT SAT MAY 22 2004

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

0605 PM     HAIL             3 NW WAUNETA            40.45N 101.41W
05/22/2004  0.75 INCH        CHASE              NE   TRAINED SPOTTER

            60MPH THUNDERSTORM WINDS

&&

MB

Local storm report, May 22, 6:22 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
622 PM CDT SAT MAY 22 2004

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

0620 PM     TSTM WND DMG     PALISADE                40.35N 101.11W
05/22/2004                   HAYES              NE   LAW ENFORCEMENT

            5 TO 6 INCH TREE LIMBS DOWN

&&

MB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 7:26 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	64 min
May 21, 8:19 PM CDT	Severe Thunderstorm Warning	LBF	Brown	41 min
May 21, 8:27 PM CDT	Tornado Warning	LBF	Brown	33 min
May 21, 8:57 PM CDT	Tornado Warning	LBF	Loup, Rock	48 min
May 21, 9:44 PM CDT	Tornado Warning	LBF	Garfield	46 min
May 21, 9:57 PM CDT	Severe Thunderstorm Warning	LBF	Garden	48 min
May 21, 10:05 PM CDT	Severe Thunderstorm Warning	LBF	Grant	40 min
May 21, 10:18 PM CDT	Tornado Warning	LBF	Wheeler	42 min
May 21, 10:46 PM CDT	Severe Thunderstorm Warning	LBF	Garden	44 min
May 21, 11:01 PM CDT	Severe Thunderstorm Warning	LBF	Wheeler	29 min
May 21, 11:02 PM CDT	Severe Thunderstorm Warning	LBF	Arthur	43 min
May 22, 1:20 AM CDT	Severe Thunderstorm Warning	LBF	Hooker	55 min
May 22, 2:43 PM CDT	Severe Thunderstorm Warning	LBF	Garden	62 min
May 22, 3:14 PM CDT	Tornado Warning	LBF	Arthur, Grant	46 min
May 22, 3:42 PM CDT	Tornado Warning	LBF	Hooker	63 min
May 22, 3:57 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	63 min
May 22, 3:58 PM CDT	Severe Thunderstorm Warning	LBF	Hayes	62 min
May 22, 4:10 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, McPherson	65 min
May 22, 4:28 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	62 min
May 22, 4:45 PM CDT	Tornado Warning	LBF	McPherson	45 min
May 22, 4:48 PM CDT	Tornado Warning	LBF	Hooker, Thomas	42 min
May 22, 5:11 PM CDT	Tornado Warning	LBF	Lincoln	64 min
May 22, 5:26 PM CDT	Tornado Warning	LBF	Logan	49 min
May 22, 5:43 PM CDT	Severe Thunderstorm Warning	LBF	Thomas	32 min
May 22, 5:51 PM CDT	Severe Thunderstorm Warning	LBF	Blaine	39 min
May 22, 5:55 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Hayes	65 min
May 22, 5:59 PM CDT	Severe Thunderstorm Warning	LBF	Custer	61 min
May 22, 6:16 PM CDT	Tornado Warning	LBF	Logan	29 min
May 22, 6:18 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	57 min
May 22, 6:24 PM CDT	Tornado Warning	LBF	Custer	51 min
May 22, 6:54 PM CDT	Severe Thunderstorm Warning	LBF	Frontier	36 min
May 22, 6:56 PM CDT	Severe Thunderstorm Warning	LBF	Loup	34 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2004 Every severe thunderstorm warning in 2004

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.