Alert archive / Montana / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 7, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jun 15, 1996, 5:17 PM MDT for Granite County, Montana. It was in force for 43 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 15, 1996, 5:17 PM MDT (23:17 UTC)
- Expired
- Jun 15, 1996, 6:00 PM MDT
- In force
- 43 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Granite County, MT
The radar
The Missoula radar (KMSX), 82 km from the middle of the area, began a volume at 23:17 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 12:00Z, 11.3 hours before the alert went out and 246 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
- 1 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 1512 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSO 152319 SVRMSO MTC039-160000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 517 PM MDT SAT JUN 15 1996 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... ... IN WEST CENTRAL MONTANA ...EASTERN GRANITE COUNTY AT 515 PM MDT...DOPPLER RADAR IN MISSOULA INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF MAXVILLE. THE STORM IS MOVING TO THE NORTHEAST AT 30 MPH...AND WILL REACH THE TOWN OF OF MAXVILLE BY 530 PM AND APPROACH THE DRUMMOND AREA BY 545 PM. 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 RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. SULLIVAN
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 15, 2:03 PM MDT, 3 hours 14 minutes earlier.
Area forecast discussion, Jun 15, 2:03 PM MDT, 3 hours 14 minutes before
88D AND SATELLITE ARE INDICATING RAPID THUNDERSTORM DEVELOPMENT. THE HEAVIEST ACTIVITY WAS OVER WESTERN AND NORTHERN FLATHEAD COUNTY AND BEAVERHEAD COUNTIES OF MONTANA...LEMHI COUNTY OF IDAHO. ANTICIPATING THAT A FEW OF THESES STORMS WILL BECOME SEVERE IN THE NEXT COUPLE OF HOURS. MODELS ARE SLOW ON POSITIONING OF S/WV APPROACHING THE NORTHWEST WASHINGTON COAST...NEVER THE LESS MSO-ETA KEEPS MAIN S/WV TO THE NORTHWEST OF OUR CWA...HOWEVER A WEAK S/WV COMES THROUGH OVER NIGHT. ANOTHER WEAK S/WV MOVES ACROSS SOUTHWEST MONTANA AND THE EAST CENTRAL MOUNTAINS OF IDAHO SUNDAY...SPELLING ANOTHER ROUND OF CONVECTIVE WEATHER...MAINLY FROM HMM SOUTH THROUGH LEMHI AND BEAVERHEAD COUNTIES. AVN SHOWING MAIN 5H LOW MOVING IN ALONG THE WASHINGTON OREGON COAST BY 00Z TUESDAY...LOOKS LIKE ACTIVE WEATHER INTO THE FIRST PART OF THE NEW WEEK. TC FCA 3124 048/080/048/075 LIB 2124 049/083/049/076 POL 2123 048/080/050/074 MSO 4223 051/081/052/077 HMM 3323 051/083/053/079 FN/04
In the hours before
Special weather statement, Jun 15, 1:16 PM MDT, 4 hours 1 minute before
MTZ004-IDZ010-152100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 110 PM MDT SAT JUN 15 1996 ...THUNDERSTORMS DEVELOPING OVER LEMHI COUNTY IN IDAHO AND BEAVERHEAD COUNTY IN MONTANA... SATELLITE PICTURES AND WEATHER RADAR SHOW THUNDERSTORMS ARE DEVELOPING OVER CENTRAL LEMHI COUNTY, IDAHO AND SOUTHERN BEAVERHEAD COUNTY, MONTANA. ONE AREA OF STORMS WAS SITUATED IN THE TAYLOR MOUNTAIN AREA OF LEMHI COUNTY. ANOTHER AREA OF STORM DEVELOPMENT WAS AROUND THE CITY OF LIMA IN BEAVERHEAD COUNTY. THESE STORMS WERE MOVING TO THE NORTHEAST AT 10 MPH. THUNDERSTORMS ARE EXPECTED THROUGHOUT THE AFTERNOON. SOME OF THESE STORMS MAY BECOME STRONG WITH GUSTY WINDS AND HAIL POSSIBLE.h REMEMBER...ALL THUNDERSTORMS PRODUCE DEADLY LIGHTNING. IF A STORM APPROACHES YOUR AREA SEEK SHELTER IMMEDIATELY. FOSS
Special weather statement, Jun 15, 2:11 PM MDT, 3 hours 6 minutes before
MTZ004-IDZ010-152100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 200 PM MDT SAT JUN 15 1996 ...THUNDERSTORMS OVER LEMHI COUNTY IN IDAHO AND BEAVERHEAD COUNTY IN MONTANA... WEATHER RADAR IS INDICATING THUNDERSTORMS OVER LEMHI COUNTY. MODERATE THUNDERSTORM ACTIVITY IS SHOWN IN SOUTHERN LEMHI COUNTY NEAR THE PORTLAND MOUNTAIN AREA AND THERE WAS ANOTHER AREA OF THUNDERSTORMS TWENTY MILES WEST OF SALMON. THESE STORMS WERE MOVING TO THE NORTHEAST AT 10 MPH. IN BEAVERHEAD COUNTY...MONTANA A LINE OF STRONG THUNDERSTORMS WAS LOCATED HALFWAY BETWEEN THE CITIES OF DILLON AND LIMA. WEAKER STORMS WERE DEVELOPING OVER THE NORTHERN HALF OF THE COUNTY AS WELL. THESE STORMS THIS 0AFTERNOON HAVE THE POTENTIAL TO DEVELOP INTO SEVERE THUNDERSTORMS WITH STRONG GUSTY WINDS, HAIL AND HEAVY RAINFALL. BE AWARE OF THE WEATHER AROUND YOU AND SEEK SHELTER IF A STORM MOVES INTO YOUR AREA. FOSS
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 8:33 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge | 57 min |
| Jun 15, 3:01 PM MDT | Severe Thunderstorm Warning | MSO | Beaverhead | 59 min |
| Jun 15, 4:21 PM MDT | Severe Thunderstorm Warning | MSO | Granite | 54 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.