Alert archive / Montana / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 39, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Sep 13, 1996, 4:25 PM MDT for Missoula County, Montana. It was in force for 50 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
- Sep 13, 1996, 4:25 PM MDT (22:25 UTC)
- Expired
- Sep 13, 1996, 5:15 PM MDT
- In force
- 50 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Missoula County, MT
The radar
The Missoula radar (KMSX), 5 km from the middle of the area, began a volume at 22:27 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, 10.4 hours before the alert went out and 201 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSO 132224 SVRMSO MTC063-132315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 425 PM MDT FRI SEP 13 1996 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL MONTANA ...EASTERN MISSOULA COUNTY AT 425 PM MDT...MISSOULA DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES EAST OF MILLTOWN. THIS STORM IS MOVING TO THE NORTH AT 20 MPH AND WILL MOVE INTO SOUTHERN MISSION MOUNTAINS...EAST OF SEELEY LAKE OVER THE NEXT 45 MINUTES. 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. BELTZ/CLEMMONS
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 Sep 13, 2:03 PM MDT, 2 hours 22 minutes earlier.
Area forecast discussion, Sep 13, 2:03 PM MDT, 2 hours 22 minutes before
88D SHOWING A FEW 45 DBZ ECHOES DEVELOPING OVER THE BITTERROOTS AND NORTHERN LEMHI COUNTY IN ID. ELSEWHERE A FEW LIGHT SHOWERS HAVE DEVELOPED OVER WESTERN SANDERS AND SOUTHERN LINCOLN COUNTY IN MT. WV IMAGERY SHOWING ANOTHER BAROCLINIC BAND...SE WASHINGTON DOWN INTO SOUTH CENTRAL ID MOVING NORTH NORTHEAST. A FEW SHOWERS AND -TSRA HAVE DEVELOP ALONG THIS BAND. AS UPPER 5H TROUGH APPROACHES THE FORECAST AREA TONIGHT AND SATURDAY A SERIES OF S/WVS WILL MOVE THROUGH. FIRST S/WV TO MOVE THROUGH TONIGHT IS FORECASTED TO BE WEAK...HOWEVER IT DOES HAVE GOOD MOISTURE TO WORK WITH. SATURDAY FIRST S/WV EXITS THE AREA SO LOWERING POPS SATURDAY. SECOND STRONGER S/WV COMES THROUGH SATURDAY NIGHT INTO SUNDAY...TIMING IS SOMEWHAT UNDETERMINED ATTM. JET BEGINNING TO PICKUP BETTER MOISTURE BACK AT 160W WHICH MAY BECOME INVOLVED IN SYSTEM ON SUNDAY...WORTH WATCHING THAT. THICKNESS AND TEMPS SLOWLY DROP INTO THE WEEKEND. SATURDAY MAY HAVE BIG ENOUGH BREAK BETWEEN SYSTEMS THAT SKIES MAY ALLOW ENOUGH BREAKS IN OVERCAST FOR SLIGHTLY WARMER TEMPS THAN PREVIOUS FCST. SUNDAYS TEMPS...WENT CLOSER TO MOS DUE TO CONTINUED COOLING AND BETTER CHANCES OF PRECIP. TC FCA 5466 048/067/046/065 LIB 5466 048/066/046/066 POL 5466 050/069/048/067 MSO 5456 050/070/048/068 HMM 5456 051/072/049/070 FN/29
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 2:45 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 45 min |
| Sep 13, 4:15 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 45 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.