Alert archive / Nebraska / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 295

May 16, 20006 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at May 16, 2000, 8:30 PM MDT for 6 counties in Nebraska. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
May 16, 2000, 8:30 PM MDT (02:30 UTC)
Expired
May 17, 2000, 12:00 AM MDT
In force
4 hr
Issued by
the Storm Prediction Center

Counties Box Butte County, NE, Dawes County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE

The radar

The Cheyenne radar (KCYS), 183 km from the middle of the area, began a volume at 02:32 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 16, 8:38 PM MDTSevere Thunderstorm WarningCYSSioux52 min
May 16, 9:34 PM MDTSevere Thunderstorm WarningCYSSioux56 min
May 16, 10:35 PM MDTSevere Thunderstorm WarningCYSDawes40 min
May 16, 11:15 PM MDTSevere Thunderstorm WarningLBFSheridan60 min

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 2.5 hours before the alert went out and 204 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 00:00Z on 2000-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2000-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
2099 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
285 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 1:30 PM MDTTornado WatchSPCAdams, Arthur, Blaine, Buffalo, Chase, Clay and 32 more6 hr
May 17, 3:15 PM MDTTornado WatchSPCAntelope, Boone, Burt, Butler, Cass, Cedar and 29 more5 hr

Nearby

Severe Thunderstorm Watches in Nebraska, 2000Every severe thunderstorm watch in 2000

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.