Alert archive / Montana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 9, NWS Missoula, MT

June 27, 2001Missoula County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 27, 2001, 6:17 PM MDT for Missoula County, Montana. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 27, 2001, 6:17 PM MDT (00:17 UTC)
Expired
Jun 27, 2001, 7:00 PM MDT
In force
43 min
Issued by
NWS Missoula, MT
Area
Whole counties

County Missoula County, MT

The radar

The Missoula radar (KMSX), 5 km from the middle of the area, began a volume at 00:18 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.

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 0.3 hours before the alert went out and 201 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, Spokane, WA at 00:00Z on 2001-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 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, Spokane, WA at 00:00Z on 2001-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939587897117Sfc1 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
6 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
1159 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS55 KMSO 280018
SVRMSO

MTC063-280100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
617 PM MDT WED JUN 27 2001

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MISSOULA COUNTY IN WEST CENTRAL MONTANA

* UNTIL 700 PM MDT

* AT 617 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM FROM 7 MILES
  WEST OF EVARO TO 12 MILES SOUTHWEST OF LOLO...OR FROM 14 MILES
  NORTHWEST OF MISSOULA TO 20 MILES SOUTHWEST OF MISSOULA...MOVING
  NORTHEAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE...
  OVER MISSOULA AT 625 PM MDT
  OVER EAST MISSOULA AT 630 PM MDT
  OVER BONNER AT 635 PM MDT
  3 MILES WEST OF SEELEY LAKE AT 700 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.

BELTZ

Nearby

Severe Thunderstorm Warnings in Montana, 2001Every severe thunderstorm warning 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.