Alert archive / Montana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 21, NWS Missoula, MT

July 9, 1995Flathead County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jul 9, 1995, 11:45 PM MDT for Flathead County, Montana. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1995, 11:45 PM MDT (05:45 UTC)
Expired
Jul 10, 1995, 12:30 AM MDT
In force
45 min
Issued by
NWS Missoula, MT
Area
Whole counties

County Flathead County, MT

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 5.8 hours before the alert went out and 187 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 1995-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 736 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 1995-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.19395878Sfc1 km3 km6 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
736 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1624 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
81 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 
TTAA00 KFCA 100545 RRA
SVRFCA
MTC029-053-100700-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KALISPELL MT
1145 PM MDT SUN JUL 09 1995

THE NATIONAL WEATHER SERVICE IN KALISPELL MT HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 AM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHWEST MONTANA

  ...SOUTHERN AND CENTRAL FLATHEAD COUNTY...

AT 1140 PM MDT MISSOULA DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
ENTERING SOUTHERN FLATHEAD COUNTY AT THE INTERSECTION OF THE FLATHEAD
...SANDERS AND LINCOLN COUNTY LINE. THE STORM IS MOVING TO THE
NORTHEAST AT APPROXIMATELY 40 MPH AND WILL AFFECT THE KALISPELL...
COLUMBIA FALLS...AND WHITEFISH AREAS WITHIN THE NEXT 45 MINUTES. 

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAI
NS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 6:30 PM MDTSevere Thunderstorm WarningMSOGranite, Powell25 min
Jul 9, 7:10 PM MDTSevere Thunderstorm WarningMSOLincoln50 min
Jul 10, 1:35 PM MDTSevere Thunderstorm WarningMSOPowell40 min
Jul 10, 2:19 PM MDTSevere Thunderstorm WarningMSOPowell26 min
Jul 10, 2:44 PM MDTSevere Thunderstorm WarningMSODeer Lodge36 min

Nearby

Severe Thunderstorm Warnings in Montana, 1995Every severe thunderstorm warning in 1995

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.