Alert archive / Montana / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 13, NWS Missoula, MT

June 16, 1996Ravalli County, Montana

NWS Missoula, MT issued this severe thunderstorm warning at Jun 16, 1996, 5:20 PM MDT for Ravalli County, Montana. It was in force for 55 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 16, 1996, 5:20 PM MDT (23:20 UTC)
Expired
Jun 16, 1996, 6:15 PM MDT
In force
55 min
Issued by
NWS Missoula, MT
Area
Whole counties

County Ravalli County, MT

The radar

The Missoula radar (KMSX), 107 km from the middle of the area, began a volume at 23:24 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 12:00Z, 11.3 hours before the alert went out and 250 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 12:00Z on 1996-06-16Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 1996-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
2908 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 16, 2:04 PM MDT, 3 hours 16 minutes earlier.

Area forecast discussion, Jun 16, 2:04 PM MDT, 3 hours 16 minutes before
...FLOOD WARNING FOR THE SALMON AT SALMON WILL CONTINUE INTO
MONDAY...GAGE READ OF 6.9 AT 100 MP MDT.
88D SHOWING CONVECTIVE BUILD UP OVER DEER LODGE...SILVER BOW AND
BEAVER HEAD COUNTY. MODELS SHOW A WEAK 85H-7H TROUGH MOVE ACROSS CWA
BETWEEN 00-06Z MONDAY...EXPECTING MORE THUNDERSTORMS TO DEVELOP LATER
THIS AFTERNOON EVENING AS THIS FEATURE MOVES INTO THE AREA. EXPECTING
THUNDERSTORMS TO BE MAINLY OVER MISSOULA COUNTY ON SOUTH IN SOUTHWEST
MONTANA. MODELS INDICATING A MORE STABLE ATMOSPHERE OVER THE AREA ON
TUESDAY...HOWEVER A COLD FRONT MOVES INTO NORTHWEST MONTANA AROUND
00Z TUESDAY AHEAD OF THE MAIN UPPER LEVEL LOW. MODELS BRING MAIN 5H
LOW ONTO WASHINGTON/OREGON COAST BY 00Z TUESDAY...LOOKS LIKE BEST
DYNAMICS AND MOISTURE WILL MONDAY NIGHT INTO TUESDAY MORNING.
...MODELS BRING 540 THICKNESSES INTO NORTHWEST MONTANA BY TUESDAY
MORNING WITH 5H LOW. WILL MENTION SNOW IN THE MOUNTAINS ABOVE 7000
FEET TUESDAY MORNING. LOOK FOR WINDY CONPDITIONS DEVELOPING MONDAY
NIGHT INTO TUESDAY.
TC

FCA 2365 050/074/044/058
LIB 2365 049/074/045/056
POL 2365 050/075/044/057
MSO 3355 052/077/044/061
HMM 4355 053/080/046/062
FN/04

In the hours before

Special weather statement, Jun 16, 1:25 PM MDT, 3 hours 55 minutes before
MTZ004-162015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
115 PM MDT SUN JUN 16 1996

...RAIN SHOWERS AND POSSIBLE THUNDERSTORMS HAVE DEVELOPED OVER
   SOUTHERN BEAVERHEAD COUNTY...

AT 115 PM WEATHER RADAR INDICATED AN AREA OF RAIN SHOWERS AND
POSSIBLE THUNDERSTORMS MOVING ACROSS SOUTH CENTRAL BEAVERHEAD COUNTY.
THIS WEATHER ACTIVITY WAS IN THE VICINITY OF THE CLARK CANYON DAM AND
WAS MOVING TO THE NORTHEAST AT 25 MPH. THIS STORM MAY REACH THE
DILLON AREA WITHIN THE NEXT HOUR.

REMEMBER THUNDERSTORMS CAN BE DANGEROUS....LIGHTNING KILLS. IF A
THUNDERSTORM APPROACHES YOUR AREA SEEK SHELTER IMMEDIATELY.

FOSS
Special weather statement, Jun 16, 2:46 PM MDT, 2 hours 34 minutes before
MTZ004-IDZ010-162230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
240 PM MDT SUN JUN 16 1996

...THUNDERSTORMS DEVELOPING OVER LEMHI COUNTY IN IDAHO AND
   BEAVERHEAD...DEER LODGE AND SILVER BOW COUNTIES IN MONTANA...

AT 230 PM MDT (130 PM PDT) WEATHER RADAR INDICATED THUNDERSTORMS WERE
DEVELOPING OVER NORTHERN LEMHI COUNTY...IDAHO. A LINE OF SHOWERS AND
THUNDERSTORMS EXTENDED FROM GIBBONSVILLE TO COBALT. THIS ACTIVITY WAS
MOVING TO THE NORTHEAST AT 20 MPH.

SHOWERS AND THUNDERSTORMS WERE ALSO DEVELOPING OVER NORTHERN
BEAVERHEAD COUNTY AND ALONG THE DEER LODGE AND SILVER BOW COUNTY
LINE. RADAR INDICATED A THUNDERSTORM FORMING IN THE VICINITY OF THE
TOWN OF WISE RIVER. THESE STORMS WERE MOVING TO THE NORTHEAST AT 20
MPH.

IF YOU ARE IN THE PATH OF A THUNDERSTORM...SEEK SHELTER UNTIL THE
STORM HAS PASSED. REMEMBER THUNDERSTORMS PRODUCE DEADLY LIGHTNING.
STAY TUNED TO YOUR LOCAL MEDIA OR NOAA WEATHER RADIO FOR FURTHER
UPDATES.

FOSS
Special weather statement, Jun 16, 3:44 PM MDT, 1 hour 36 minutes before
MTZ004-IDZ010-162230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
345 PM MDT SUN JUN 16 1996

...STRONG THUNDERSTORMS STORMS OVER LEMHI COUNTY IN IDAHO AND
   NORTHERN BEAVERHEAD...DEER LODGE AND SILVER BOW COUNTIES IN
   MONTANA...

AT 330 PM MDT (230 PM PDT) WEATHER RADAR A STRONG THUNDERSTORMS OVER
NORTHERN LEMHI COUNTY 10 MILES SOUTHWEST OF GIBBONSVILLE...AND WILL
BE IN THE GIBBONSVILLE AREA IN THE NEXT 20 TO 30 MINUTES. OTHER
STRONG STORMS WERE OVER DEER LODGE AND SILVER BOW COUNTIES IN
MONTANA.  THESE STORMS WERE MOVING TO THE NORTHEAST AT 20 MPH. THESE
STORMS ARE CAPABLE OF PRODUCING FREQUENT LIGHTING...SMALL HAIL AND
GUSTY WINDS.

IF YOU ARE IN THE PATHp OF A THUNDERSTORM...SEEK SHELTER UNTIL THE
STORM HAS PASSED. REMEMBER THUNDERSTORMS PRODUCE DEADLY LIGHTNING.
STAY TUNED TO YOUR LOCAL MEDIA OR NOAA WEATHER RADIO FOR FURTHER
UPDATES.

TC
Special weather statement, Jun 16, 4:57 PM MDT, 23 minutes before
MTZ004-IDZ010-162230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
445 PM MDT SUN JUN 16 1996

...STRONG THUNDERSTORMS STORMS OVER NORTHERN BEAVERHEAD...DEER LODGE
AND SILVER BOW COUNTIES IN MONTANA...

AT 430 PM MDT DOPPLER RADAR INDICATED STRONG THUNDERSTORMS OVER
NORTHERN BEAVERHEAD COUNTY JUST EAST OF WISDOM...AND OTHER STORMS 5
MILES SOUTH OF ANACONDA AND NORTHWEST OF BUTTE ALONG THE DEER LODGE
AND SILVER BOW COUNTY BORDERS. THESE STORMS WERE MOVING TO THE
NORTHEAST AT 25 MPH. THESE STORMS ARE CAPABLE OF PRODUCING FREQUENT
LIGHTING...POSSIBLE LARGE HAIL AND GUSTY WINDS.

IF YOU ARE IN THE PATH OF A THUNDERSTORM...SEEK SHELTER UNTIL THE
STORM HAS PASSED. REMEMBER THUNDERSTORMS PRODUCE DEADLY LIGHTNING.
STAY TUNED TO YOUR LOCAL MEDIA OR NOAA WEATHER RADIO FOR FURTHER
UPDATES.

FELSCH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 9:10 PM MDTSevere Thunderstorm WarningMSOMissoula50 min
Jun 15, 9:43 PM MDTSevere Thunderstorm WarningMSOLake, Missoula47 min
Jun 16, 4:24 PM MDTSevere Thunderstorm WarningMSORavalli51 min
Jun 16, 5:00 PM MDTSevere Thunderstorm WarningMSORavalli75 min
Jun 16, 5:17 PM MDTSevere Thunderstorm WarningMSORavalli58 min
Jun 16, 5:44 PM MDTSevere Thunderstorm WarningMSOMissoula46 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.