Alert archive / Montana / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 12, NWS Missoula, MT

July 6, 1995Mineral County, Sanders County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jul 6, 1995, 8:10 PM MDT for Mineral County, Sanders County, Montana. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Jul 6, 1995, 8:10 PM MDT (02:10 UTC)
Expired
Jul 6, 1995, 8:45 PM MDT
In force
35 min
Issued by
NWS Missoula, MT
Area
Whole counties

Counties Mineral County, MT, Sanders County, MT

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 2.2 hours before the alert went out and 105 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 1995-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 176 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 1995-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
176 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
2283 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
36 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 
WUUS1 KMSO 070226
SVRMSO
MTC061-C089-070245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
810 PM MDT THU JUL 7 1995

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WESTERN MONTANA

   ...MINERAL COUNTY
   ...CENTRAL SANDERS COUNTY

MISSOULA DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING
FROM JUST EAST OF THOMPSON FALLS TO PLAINS TO SOUTHWEST OF SUPERIOR.
THE SHERIFF REPORTED A DOWNED TREE ONTO A HOUSE...AND A SPOTTER REPORTED
60 TO 70 MILE AN HOUR WINDS AT PLAINS AT ABOUT 805 PM MDT. THESE
THUNDERSTORMS ARE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.
LARGE HAIL...STRONG WIND...AND VERY HEAVY RAIN IS EXPECTED
FROM THIS STORM.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
GV

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 6, 5:20 PM MDT, 2 hours 50 minutes before
MTZ002-004-070030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
520 PM MDT THU JUL 6 1995

...VERY STRONG THUNDERSTORM WEST OF STEVENSVILLE...

AT 510 PM MDT...MISSOULA DOPPLER RADAR INDICATED A VERY STRONG
THUNDERSTORM OVER THE BITTERROOT RANGE WEST OF STEVENSVILLE...OR 25
MILES SOUTHWEST OF MISSOULA. THIS STORM WILL LIKELY PRODUCE HAIL AND
STRONG WIND AS IT MOVES NORTH-NORTHEAST AT 35 MILES AN HOUR...AND
WILL BE NEAR LOLO AT ABOUT 545 PM MDT.

RADAR ALSO INDICATED THAT THUNDERSTORMS WERE MOVING THROUGH ALL OF
RAVALLI COUNTY...AND ALSO OVER SOUTHEAST PORTIONS OF POWELL COUNTY
AND NEAR THE CITY OF DEER LODGE. BE PREPARED FOR STRONG WIND AND
HAIL AND MOVE INDOORS IF A THUNDERSTORM IS APPROACHING.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER
UPDATES AND POSSIBLE WARNINGS.
GV
Special weather statement, Jul 6, 5:22 PM MDT, 2 hours 48 minutes before
MTZ002-004-070030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
520 PM MDT THU JUL 6 1995

...VERY STRONG THUNDERSTORM WEST OF STEVENSVILLE...

AT 510 PM MDT...MISSOULA DOPPLER RADAR INDICATED A VERY STRONG
THUNDERSTORM OVER THE BITTERROOT RANGE WEST OF STEVENSVILLE...OR 25
MILES SOUTHWEST OF MISSOULA. THIS STORM WILL LIKELY PRODUCE HAIL AND
STRONG WIND AS IT MOVES NORTH-NORTHEAST AT 35 MILES AN HOUR...AND
WILL BE NEAR LOLO AT ABOUT 545 PM MDT.

RADAR ALSO INDICATED THAT THUNDERSTORMS WERE MOVING THROUGH ALL OF
RAVALLI COUNTY...AND ALSO OVER SOUTHEAST PORTIONS OF POWELL COUNTY
AND NEAR THE CITY OF DEER LODGE. BE PREPARED FOR STRONG WIND AND
HAIL AND MOVE INDOORS IF A THUNDERSTORM IS APPROACHING.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR FURTHER
UPDATES AND POSSIBLE WARNINGS.
GV
Special weather statement, Jul 6, 7:10 PM MDT, 1 hour before
MTZ002-004-070210-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
710 PM MDT THU JUL 6 1995

...STRONG THUNDERSTORMS CONTINUE OVER WESTERN MONTANA...

AT 655 PM MDT...MISSOULA DOPPLER RADAR INDICATED THUNDERSTORMS OVER
PARTS OF WESTERN MONTANA...MOSTLY ALONG A LINE FROM DIXON...OR 35 MILES
NORTH OF MISSOULA TO NEAR OVANDO IN POWELL COUNTY...TO ABOUT 25 MILES
WEST OF HELENA. THE STRONGEST OF THE THUNDERSTORMS WAS LOCATED 10 MILES
NORTHWEST OF OVANDO AND THEY WERE ALL MOVING NORTHEAST AT 35 MILES AN
HOUR. MARBLE SIZED HAIL WAS REPORTED WITH THIS THUNDERSTORM NEAR POTOMAC
AND HAIL A HALF INCH IN DIAMETER OCCURRED AT ABOUT 645 PM AT CLEARWATER
CROSSING.

FOR THE REST OF WESTERN MONTANA...THUNDERSTORM ACTIVITY HAS DECREASED
FOR THE TIME BEING. HOWEVER...A LARGE AREA OF STRONG THUNDERSTORMS IS
MOVING THROUGH IDAHO AND IS BEGINNING TO CROSS THE BITTERROOT RANGE
FROM HAMILTON THROUGH MISSOULA TO NEAR MULLAN IDAHO.
>
STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR LATER UPDATES.
GV
Special weather statement, Jul 6, 7:11 PM MDT, 59 minutes before
MTZ002-004-070210-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
710 PM MDT THU JUL 6 1995

...STRONG THUNDERSTORMS CONTINUE OVER WESTERN MONTANA...

AT 655 PM MDT...MISSOULA DOPPLER RADAR INDICATED THUNDERSTORMS OVER
PARTS OF WESTERN MONTANA...MOSTLY ALONG A LINE FROM DIXON...OR 35 MILES
NORTH OF MISSOULA TO NEAR OVANDO IN POWELL COUNTY...TO ABOUT 25 MILES
WEST OF HELENA. THE STRONGEST OF THE THUNDERSTORMS WAS LOCATED 10 MILES
NORTHWEST OF OVANDO AND THEY WERE ALL MOVING NORTHEAST AT 35 MILES AN
HOUR. MARBLE SIZED HAIL WAS REPORTED WITH THIS THUNDERSTORM NEAR POTOMAC
AND HAIL A HALF INCH IN DIAMETER OCCURRED AT ABOUT 645 PM AT CLEARWATER
CROSSING.

FOR THE REST OF WESTERN MONTANA...THUNDERSTORM ACTIVITY HAS DECREASED
FOR THE TIME BEING. HOWEVER...A LARGE AREA OF STRONG THUNDERSTORMS IS
MOVING THROUGH IDAHO AND IS BEGINNING TO CROSS THE BITTERROOT RANGE
FROM HAMILTON THROUGH MISSOULA TO NEAR MULLAN IDAHO.
>
STAY TnUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR LATER UPDATES.
GV
Special weather statement, Jul 6, 7:35 PM MDT, 35 minutes before
MTZ001-070230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
735 PM MDT THU JUL 6 1995

...THUNDERSTORMS TO MOVE INTO SANDERS COUNTY...

AT 725 PM MDT...MISSOULA DOPPLER RADAR INDICATED A STRONG THUNDERSTORM
ON THE MONTANA/IDAHO STATE LINE NORTH OF MULLAN IDAHO. IT WAS MOVING
NORTHEAST AT 35 MILES AN HOUR AND IS EXPECTED TO PRODUCE GUSTY WIND
AND HAIL ALONG WITH DANGEROUS LIGHTNING NEAR WHITE PINE...ABOUT 12
MILES NORTHWEST OF THOMPSON FALLS...AT AROUND 750 PM MDT.

MOVE INDOORS IF A THUNDERSTORM APPROACHES AND STAY TUNED FOR LATER
STATEMENTS AND POSSIBLE WARNINGS AS THESE THUNDERSTORMS CONTINUE.
GV
Special weather statement, Jul 6, 7:38 PM MDT, 32 minutes before
MTZ001-070230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
735 PM MDT THU JUL 6 1995

...THUNDERSTORMS TO MOVE INTO SANDERS COUNTY...

AT 725 PM MDT...MISSOULA DOPPLER RADAR INDICATED A STRONG THUNDERSTORM
ON THE MONTANA/IDAHO STATE LINE NORTH OF MULLAN IDAHO. IT WAS MOVING
NORTHEAST AT 35 MILES AN HOUR AND IS EXPECTED TO PRODUCE GUSTY WIND
AND HAIL ALONG WITH DANGEROUS LIGHTNING NEAR WHITE PINE...ABOUT 12
MILES NORTHWEST OF THOMPSON FALLS...AT AROUND 750 PM MDT.

MOVE INDOORS IF A THUNDERSTORM APPROACHES AND STAY TUNED FOR LATER
STATEMENTS AND POSSIBLE WARNINGS AS THESE THUNDERSTORMS CONTINUE.
GV

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 8:45 PM MDTSevere Thunderstorm WarningMSOSanders25 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.