Alert archive / Wyoming / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 357

June 3, 2001Carter County, Powder River County, Montana; 8 counties in Wyoming

The Storm Prediction Center issued this severe thunderstorm watch at Jun 3, 2001, 12:00 PM MDT for Carter County, Powder River County, Montana; 8 counties in Wyoming. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 3, 2001, 12:00 PM MDT (18:00 UTC)
Expired
Jun 3, 2001, 6:00 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Carter County, MT, Powder River County, MT, Campbell County, WY, Converse County, WY, Crook County, WY, Johnson County, WY, Natrona County, WY, Niobrara County, WY, Sheridan County, WY, Weston County, WY

The radar

The Rapid City radar (KUDX), 208 km from the middle of the area, began a volume at 18:03 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 3, 12:45 PM MDTSevere Thunderstorm WarningRIWNatrona45 min
Jun 3, 1:05 PM MDTSevere Thunderstorm WarningBYZSheridan55 min
Jun 3, 1:32 PM MDTSevere Thunderstorm WarningRIWNatrona28 min
Jun 3, 1:52 PM MDTSevere Thunderstorm WarningUNRCampbell58 min
Jun 3, 2:00 PM MDTSevere Thunderstorm WarningBYZSheridan45 min
Jun 3, 2:01 PM MDTSevere Thunderstorm WarningCYSConverse59 min
Jun 3, 2:48 PM MDTSevere Thunderstorm WarningUNRCampbell, Crook, Weston62 min

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 6.0 hours before the alert went out and 205 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 2001-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 2001-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
87 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.

Nearby

Severe Thunderstorm Watches in Wyoming, 2001Severe Thunderstorm Watches in Montana, 2001Every severe thunderstorm watch in 2001

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.