Alert archive / Montana / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 4, NWS Missoula, MT

June 14, 1996Deer Lodge County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 14, 1996, 8:33 PM MDT for Deer Lodge County, Montana. It was in force for 57 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 14, 1996, 8:33 PM MDT (02:33 UTC)
Expired
Jun 14, 1996, 9:30 PM MDT
In force
57 min
Issued by
NWS Missoula, MT
Area
Whole counties

County Deer Lodge County, MT

The radar

The Missoula radar (KMSX), 130 km from the middle of the area, began a volume at 02:37 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

Great_falls, MT (KTFX), launched 00:00Z, 2.6 hours before the alert went out and 244 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 00:00Z on 1996-06-15Temperature 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 00:00Z on 1996-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
1872 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
36 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 
TTAA00 KMSO 150235
SVRMSO
MTC023-150330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
833 PM MDT FRI JUN 14 1996
 
THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...                     ...
 
IN SOUTHWEST MONTANA
 
   ...WESTERN DEER LODGE COUNTY
 
AT 830 PM MDT DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER THE
ANACONA RANGE OF WESTERN DEERLODGE COUNTY. THE STORM WAS MOVING TO THE
NORTHEAST AT 25 MPH AND WILL APPROACH THE GEORGETOWN LAKE AREA WITHIN
THE HOUR.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WINDD IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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.

NWS Missoula, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 14, 8:01 PM MDT, 32 minutes earlier.

Area forecast discussion, Jun 14, 8:01 PM MDT, 32 minutes before
AREA OF SHOWERS AND T-STORMS CONTINUES OVER SW MT AND EAST CENTRAL ID
WITH AREA SLOWLY WORKING NORTH INTO SOUTHERN PTN ZONE 2. IR IMAGERY
SHOWS GENERAL WEAKENING AND WOULD EXPECT THIS TREND TO CONTINUE AFTER
SUNSET WITH LOSS OF HEATING. HOWEVER...EXPECT SOME RESIDUAL SHOWER
ACTIVITY TO LINGER OVER MT ZONE 2 INTO TONIGHT...ESPECIALLY DOWN
SOUTH...SO HAVE RAISED POPS AT HMM. MORE STABLE AIR IN PLACE OVER NW
MT AND NORTHERN ID AND MOST OF THIS EVENINGS ACTIVITY SHOULD DIE OUT
BEFORE REACHING THE AREA. WILL MAKE SOME ADJUSTMENTS TO MINS IN ZONE
1. FOR SAT...THERMAL TROF DEVELOPS OVER CENTRAL ID AND WESTERN MT
WITH MID LEVEL FLOW INCREASING OUT OF SE. THIS SHOULD PULL LEFTOVER
MOISTURE FROM TONIGHT'S CONVECTION NORTH. EXPECT SOME CONVECTION EAST
OF THERMAL TROF BY AFTERNOON...ESPECIALLY NEAR THE DIVIDE. SULLIVAN

FCA 1322 048/078/048/080
LIB 1222 047/083/049/083
POL 1222 050/078/048/078
MSO 2212 052/082/050/084
HMM 3432 052/084/051/084
FN/11

In the hours before

Special weather statement, Jun 14, 4:00 PM MDT, 4 hours 33 minutes before
MTZ004-IDZ010-150000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
355 PM MDT FRI JUN 14 1996

...THUNDERSTORMS IN SOUTHERN LEMHI AND BEAVERHEAD COUNTIES...

AT 350 PM MDT...BOTH MISSOULA AND POCATELLO DOPPLER RADARS AND
SATELLITE CONTINUED TO INDICATE STRONG THUNDERSTORMS OVER SOUTHERN
LEMHI COUNTY IN IDAHO AND SOUTHERN BEAVERHEAD COUNTY IN MONTANA.
THESE STORMS ARE EXPECTED TO CONTINUE OVER THE NEXT FEW HOURS...WITH
BRIEF HEAzVY RAIN...STRONG GUSTY WINDS...AND SMALL HAIL POSSIBLE.

WHEN THUNDERSTORMS APPROACH...SEEK SHELTER INDOOR. REMEMBER
THUNDERSTORMS PRODUCE LIGHTNING THAT CAN KILL.

END/BARKER
Special weather statement, Jun 14, 6:00 PM MDT, 2 hours 33 minutes before
MTZ004-150250-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
550 PM MDT FRI JUN 14 1996

...THUNDERSTORMS TO DEVELOP OVER SILVER BOW COUNTY THIS FRIDAY
   EVENING...

AT 530 PM MDT STRONG THUNDERSTORMS OVER BEAVERHEAD COUNTY WERE MOVING
TO THE NORTHEAST AT 20 MPH...AND WILL BE MOVING INTO SILVER BOW
COUNTY OVER THE NEXT SEVERAL HOURS.

THESE THUNDERSTORMS HAVE A HISTORY OF REACHING SEVERE LEVELS WITH
LARGE HAIL AND STRONG GUSTY WINDS...IN ADDITION TO FREQUENT
LIGHTNING.

IF YOU ARE IN THE PATH OF THESE THUNDERSTORMS...SEEK SHELTER UNTIL
THE STORM HAS PASSED. STAY TUNED TO NOAA WEATHER RADIO AND YOUR LOCAL
MEDIA FOR FURTHER UPDATES TO THESE DEVELOPING STORMS.

FELSCHT
Special weather statement, Jun 14, 6:43 PM MDT, 1 hour 50 minutes before
MTZ004-IDZ010-150330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
630 PM MDT FRI JUN 14 1996

...THUNDERSTORMS CONTINUE OVER BEAVERHEAD AND SILVER BOW COUNTIES OF
   SOUTHWEST MONTANA...AND LEMHI COUNTY OF EAST CENTRAL IDAHO FRIDAY
   EVENING...

AT 630 PM MDT STRONG THUNDERSTORMS CONTINUE TO MOVE THROUGH
LEMHI...BEAVERHEAD AND SILVER BOW COUNTIES. THESE STORMS HAVE A
HISTORY OF PRODUCING LARGE HAIL AND HEAVY RAIN. DOPPLER RADAR
INDICATES AS MUCH AS ONE INCH OF RAIN HAS FALLEN IN THE LAST HOUR
NEAR DIVIDE IN SILVER BOW COUNTY....AND NEAR COBALT IN LEHMHI COUNTY.

THESE STORMS ARE MOVING TO THE NORTHEAST AT 20 MPH AND ARE EXPECTED
TO CONTINUE OVER THE NEXT FEW HOURS. IF BYOU ARE IN THE PATH OF THESE
THUNDERSTORMS SEEK SHELTER UNTIL THE STORM HAS PASSED.

IF TRAVELING IN A VEHICLE THROUGH THESE COUNTIES...BE PREPARED TO
SLOW DOWN IF HEAVY DOWN POURS OR HAIL OCCURS.

FELSCH
Special weather statement, Jun 14, 8:00 PM MDT, 33 minutes before
MTZ002-004-IDZ010-150455-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
755 PM MDT FRI JUN 14 1996

...THUNDERSTORMS DEVELOPING IN DEERLODGE COUNTY...AND EXPECTED IN
SOUTHERN PORTIONS OF POWELL...GRANITE AND RAVALLI COUNTIES LATER THIS
FRIDAY EVENING...

WIDESPREAD SHOWERS AND THUNDERSTORMS OVER EAST CENTRAL IDAHO AND
SOUTHWEST MONTANA ARE MOVING TO THE NORTHEAST AT 20 MPH. THESE STORMS
HAVE A HISTORY OF HEAVY RAIN AND LARGE HAIL.

AT 755 PM MDT DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 15 MILES
SOUTH OF ANACONDA...WHICH SHOULD MOVE IN THE ANACONDA AREA WITHIN THE
NEXT HOUR.

IF YOU ARE TRAVELING OR LIVE IN EAST CENTRAL IDAHO... WEST AND
SOUTHWEST MONTANA...BE PREPARED FOR HEAVY SHOWERS AND POSSIBLE STRONG
THUNDERSTORMS THIS EVENING. IF A THUNDERSTORM APPROACHES...SEEK
SHELTER UNTIL THE STORM HAS PASSED.

STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR FURTHER UPDATES
TO THUNDERSTORM DEVELOPMENT.

FELSCH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 3:01 PM MDTSevere Thunderstorm WarningMSOBeaverhead59 min
Jun 15, 4:21 PM MDTSevere Thunderstorm WarningMSOGranite54 min
Jun 15, 5:17 PM MDTSevere Thunderstorm WarningMSOGranite43 min

Nearby

Severe Thunderstorm Warnings in Montana, 1996Every severe thunderstorm warning in 1996

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.