Alert archive / Montana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 7, NWS Missoula, MT

June 27, 2002Lake County, Missoula County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 27, 2002, 6:56 PM MDT for Lake County, Missoula County, Montana. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 27, 2002, 6:56 PM MDT (00:56 UTC)
Expired
Jun 27, 2002, 7:55 PM MDT
In force
59 min
Issued by
NWS Missoula, MT
Area
Counties, with a storm outline in the text

Counties Lake County, MT, Missoula County, MT

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 0.9 hours before the alert went out and 190 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 2002-06-28Temperature 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, Spokane, WA at 00:00Z on 2002-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.193958Sfc1 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
2776 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
88 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 280056
SVRMSO
MTC047-063-280145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
655 PM MDT THU JUN 27 2002

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A

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

* UNTIL 755 PM MDT

* AT 655 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES SOUTH
  OF RONAN...OR 17 MILES SOUTH OF POLSON...MOVING EAST AT 30 MPH. 
  SPOTTER REPORTS INDICATE GOLFBALL SIZE HAIL IN CHARLO WITH THIS 
  STORM. 

* THE SEVERE THUNDERSTORM WILL REMAIN OVER REMOTE AREAS.

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 4757 11418 4736 11412 4741 11348 4761 11348

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 6:20 PM MDTSevere Thunderstorm WarningMSOFlathead55 min
Jun 27, 6:43 PM MDTSevere Thunderstorm WarningMSOMissoula, Powell62 min
Jun 27, 7:17 PM MDTSevere Thunderstorm WarningMSOFlathead, Lake58 min
Jun 27, 7:23 PM MDTSevere Thunderstorm WarningMSOFlathead, Lake52 min
Jun 27, 11:43 PM MDTSevere Thunderstorm WarningMSOMissoula, Ravalli47 min
Jun 28, 2:43 AM MDTFlash Flood WarningMSORavalli107 min

Nearby

Severe Thunderstorm Warnings in Montana, 2002Every severe thunderstorm warning in 2002

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.