Alert archive / Montana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 13, NWS Missoula, MT

August 10, 2000Deer Lodge County, Granite County, Powell County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Aug 10, 2000, 4:08 PM MDT for Deer Lodge County, Granite County, Powell County, Montana. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Aug 10, 2000, 4:08 PM MDT (22:08 UTC)
Expired
Aug 10, 2000, 5:00 PM MDT
In force
52 min
Issued by
NWS Missoula, MT
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Deer Lodge County, MT, Granite County, MT, Powell County, MT

The nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 10.1 hours before the alert went out and 239 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, Great_falls, MT at 12:00Z on 2000-08-10Temperature 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, Great_falls, MT at 12:00Z on 2000-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
3630 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
16 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 
WUUS55 KMSO 102209
SVRMSO
MTC023-039-077-102300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
408 PM MDT THU AUG 10 2000

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DEER LODGE COUNTY IN WEST CENTRAL MONTANA
  EASTERN GRANITE COUNTY IN WEST CENTRAL MONTANA
  SOUTHERN POWELL COUNTY IN WEST CENTRAL MONTANA

* UNTIL 500 PM MDT

* AT 408 PM MDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS 
  FROM 15 MILES NORTHWEST OF PHILIPSBURG TO 22 MILES SOUTHWEST OF 
  WEST VALLEY...OR FROM 17 MILES SOUTHWEST OF DRUMMOND TO 24 MILES 
  SOUTHWEST OF ANACONDA...MOVING EAST AT 15 MPH.

* SEVERE THUNDERSTORMS WILL BE...
  OVER PHILIPSBURG AT 415 PM MDT
  OVER WEST VALLEY...5 MILES SOUTH OF DRUMMOND...6 MILES WEST OF
  ANACONDA AT 500 PM MDT

DAMAGING WINDS IN EXCESS OF 55 MPH ARE LIKELY WITH THIS SEVERE
THUNDERSTORM. LARGE HAIL IS POSSIBLE...ALONG WITH FREQUENT LIGHTNING
AND HEAVY RAIN. FOR YOUR PROTECTION...GO INDOORS AND STAY AWAY FROM
WINDOWS. IF YOU ARE CAUGHT OUTSIDE...MOVE TO A WELL PROTECTED AREA.


LAT...LON 4659 11354 4582 11343 4595 11290 4672 11301

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 10, 3:46 PM MDTSevere Thunderstorm WarningMSODeer Lodge, Granite44 min

Nearby

Severe Thunderstorm Warnings in Montana, 2000Every severe thunderstorm warning 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.