Alert archive / Nebraska / Tornado Watches in 2004

Tornado Watch 425

June 10, 20044 states

The Storm Prediction Center issued this tornado watch at Jun 10, 2004, 1:00 PM MDT for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 10, 2004, 1:00 PM MDT (19:00 UTC)
Expired
Jun 10, 2004, 8:00 PM MDT
In force
7 hr
Issued by
the Storm Prediction Center
All 30 counties

Carter County, MT, Arthur County, NE, Box Butte County, NE, Cherry County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Sheridan County, NE, Sioux County, NE, Bennett County, SD, Butte County, SD, Custer County, SD, Fall River County, SD, Haakon County, SD, Harding County, SD, Jackson County, SD, Lawrence County, SD, Meade County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Ziebach County, SD, Crook County, WY

The radar

The Rapid City radar (KUDX), 29 km from the middle of the area, began a volume at 19:02 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.

Warnings issued inside it

28 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 10, 1:33 PM MDTSevere Thunderstorm WarningLBFSheridan42 min
Jun 10, 1:53 PM MDTSevere Thunderstorm WarningCYSBox Butte37 min
Jun 10, 2:14 PM MDTSevere Thunderstorm WarningLBFDeuel46 min
Jun 10, 2:21 PM MDTSevere Thunderstorm WarningUNRHaakon39 min
Jun 10, 2:29 PM MDTTornado WarningCYSBox Butte61 min
Jun 10, 2:31 PM MDTTornado WarningLBFDeuel44 min
Jun 10, 2:45 PM MDTSevere Thunderstorm WarningCYSDawes60 min
Jun 10, 2:54 PM MDTTornado WarningUNRHaakon51 min
Jun 10, 3:07 PM MDTTornado WarningLBFDeuel, Keith38 min
Jun 10, 3:15 PM MDTSevere Thunderstorm WarningCYSMorrill60 min
Jun 10, 3:24 PM MDTSevere Thunderstorm WarningLBFGarden36 min
Jun 10, 3:28 PM MDTSevere Thunderstorm WarningCYSBox Butte62 min
Jun 10, 3:45 PM MDTTornado WarningLBFKeith30 min
Jun 10, 3:45 PM MDTTornado WarningUNRZiebach60 min
Jun 10, 3:54 PM MDTSevere Thunderstorm WarningLBFSheridan51 min
Jun 10, 4:09 PM MDTTornado WarningLBFArthur36 min
Jun 10, 4:34 PM MDTSevere Thunderstorm WarningLBFKeith56 min
Jun 10, 4:44 PM MDTTornado WarningLBFArthur, McPherson61 min
Jun 10, 4:55 PM MDTTornado WarningLBFKeith50 min
Jun 10, 5:02 PM MDTSevere Thunderstorm WarningUNRBennett, Jackson58 min
Jun 10, 5:23 PM MDTSevere Thunderstorm WarningLBFCherry52 min
Jun 10, 5:31 PM MDTSevere Thunderstorm WarningLBFHooker44 min
Jun 10, 5:35 PM MDTSevere Thunderstorm WarningLBFHooker40 min
Jun 10, 5:44 PM MDTSevere Thunderstorm WarningLBFMcPherson46 min
Jun 10, 5:48 PM MDTTornado WarningLBFCherry42 min
Jun 10, 6:09 PM MDTSevere Thunderstorm WarningLBFCherry, Thomas51 min
Jun 10, 6:15 PM MDTSevere Thunderstorm WarningLBFHooker45 min
Jun 10, 7:01 PM MDTSevere Thunderstorm WarningLBFHooker, Thomas44 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 7.0 hours before the alert went out and 31 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-pSkew-T log-p diagram, Rapid City, SD at 12:00Z on 2004-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 12:00Z on 2004-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
483 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
155 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
WWUS20 KWNS 101901
SEL5  
SPC WW 101900
MTZ000-NEZ000-SDZ000-WYZ000-110200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 425
NWS STORM PREDICTION CENTER NORMAN OK
100 PM MDT THU JUN 10 2004

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       EXTREME SOUTHEAST MONTANA MONTANA
       WESTERN NEBRASKA
       WESTERN SOUTH DAKOTA
       EXTREME NORTHEAST WYOMING

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 100 PM UNTIL
800 PM MDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST
OF A LINE FROM 45 MILES NORTH OF REDIG SOUTH DAKOTA TO 60 MILES
EAST OF SIDNEY NEBRASKA.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 424...

DISCUSSION...THUNDERSTORMS ARE EXPECTED TO CONTINUE DEVELOPING AND
INTENSIFYING ALONG AND AHEAD OF DRY LINE FROM NERN WY INTO THE
NEBRASKA PANHANDLE.  STRONG DYNAMIC FORCING ASSOCIATED WITH
VORTICITY MAX LIFTING NNEWD TOWARD THE NRN HIGH PLAINS IS PROVIDING
LARGE SCALE ASCENT...AND STEEP LAPSE RATES AND INCREASING
INSTABILITY WILL BE SUPPORTIVE OF SEVERE STORM
DEVELOPMENT...INCLUDING POTENTIAL FOR TORNADIC SUPERCELLS.  ACTIVITY
IS EXPECTED TO SPREAD NWD/NEWD INTO THE EVENING HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 20030.


...WEISS

455,1015 410,1001 410,1032 455,1051

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 3:45 PM MDTMesoscale DiscussionSPCBig Horn, Custer, Powder River, Prairie, Rosebud, Treasure90 min
Jun 10, 3:59 PM MDTMesoscale DiscussionSPCCarter91 min
Jun 9, 6:40 PM MDTSevere Thunderstorm WatchSPCArthur, Box Butte, Chase, Cheyenne, Deuel, Dundy and 12 more4 hr
Jun 9, 9:37 PM MDTMesoscale DiscussionSPCArthur, Chase, Dundy, Frontier, Garden, Grant and 9 more53 min
Jun 10, 12:14 PM MDTMesoscale DiscussionSPCBox Butte, Cherry, Dawes, Garden, Grant, Morrill and 3 more91 min
Jun 10, 3:55 PM MDTTornado WatchSPCDawson, Franklin, Frontier, Furnas, Gosper, Harlan and 6 more5 hr
Jun 10, 5:08 PM MDTMesoscale DiscussionSPCBlaine, Boyd, Brown, Custer, Garfield, Greeley and 8 more97 min
Jun 10, 5:25 PM MDTTornado WatchSPCBlaine, Boyd, Brown, Custer, Garfield, Greeley and 11 more5 hr
Jun 10, 3:05 PM MDTTornado WatchSPCBrule, Buffalo, Campbell, Corson, Dewey, Gregory and 11 more5 hr
Jun 10, 5:50 PM MDTMesoscale DiscussionSPCBrule, Buffalo, Campbell, Corson, Dewey, Gregory and 11 more85 min

Nearby

Tornado Watches in Nebraska, 2004Tornado Watches in South Dakota, 2004Tornado Watches in Montana, 2004Every tornado watch 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.