Thunderstorm Wind, Lewis and Clark
- When
- June 4, 2:30 PM MST
- Where
- Lewis and Clark County, Silver City
- Measured
- 52 kt (60 mph) estimated gust
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.750, -112.167
Severe thunderstorms occurred across a large portion of North Central Montana on the 4th. Reported wind gusts include: 76 mph at Havre, 71 mph at Great Falls and Inverness 1W, 66 mph at Hobson, 65 mph at Loma 1N, 64 mph at Roy 1E and at Great Falls 3SW, 63 mph at Cut Bank 3SW and Lewistown 2W, 62 mph at Dunkirk 7NE, 61 mph at Hays 19SW, and 60 mph at Silver City, Craig 5N, Ulm, Cascade 25SE,…
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS TFX wrote it up.
Severe thunderstorms occurred across a large portion of North Central Montana on the 4th. Reported wind gusts include: 76 mph at Havre, 71 mph at Great Falls and Inverness 1W, 66 mph at Hobson, 65 mph at Loma 1N, 64 mph at Roy 1E and at Great Falls 3SW, 63 mph at Cut Bank 3SW and Lewistown 2W, 62 mph at Dunkirk 7NE, 61 mph at Hays 19SW, and 60 mph at Silver City, Craig 5N, Ulm, Cascade 25SE, Bozeman, Conrad, Raynesford 2SE, Chester 15SW, Inverness 15S, Geraldine 13E, Roy 25NE, Chinook 1E, and Hogeland 7W. These storms caused damage to numerous trees as well as some structural damage. The roof of a pizza restaurant in Lewistown was torn off and a ranch home northwest of Hobson had a metal fence blown threw a picture window. Power lines were also downed resulting in some interruption of service.Additionally, a funnel cloud was reported by law enforcement at Black Eagle 1NE with no damage sustained.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Great Falls, MT wrote its last area forecast discussion before the first event at Jun 4, 1:30 PM MST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 230 PM MDT SUN JUN 4 2006 .DISCUSSION... A PACIFIC COOL FRONT IS QUICKLY APPROACHING THE REGION THIS AFTERNOON...AND THIS FRONTAL PASSAGE WILL CREATE AN ACTIVE WEATHER NIGHT ACROSS CENTRAL AND EASTERN MONTANA. SHOWERS AND THUNDERSTORMS ARE MOVING THROUGH WESTERN MONTANA AT 2 PM...AND THESE STORMS WILL MOVE ACROSS SOUTHWEST AND CENTRAL MONTANA DURING THE REMAINDER OF THE AFTERNOON AND THROUGH THE EVENING HOURS. THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS AND HAIL. CURRENT THUNDERSTORM WATCH REMAINS IN EFFECT FOR SOUTHWEST AND A PORTION OF CENTRAL MONTANA...WHILE A NEW THUNDERSTORM WATCH IS LIKELY TO BE ISSUED LATER THIS AFTERNOON OR EARLY THIS EVENING FOR THE EASTERN PORTIONS OF CENTRAL MONTANA AND PARTS OF EASTERN MONTANA. EXPECT THUNDERSTORMS TO GRADUALLY COME TO AND END FROM WEST TO EAST LATE THIS EVENING. OVERNIGHT LOWS WILL COOL TOWARDS FORECASTED LOWS AFTER MIDNIGHT...WHEN SOME CLEARING TAKES PLACE. FOR MONDAY THROUGH TUESDAY NIGHT...A FAIRLY QUIET WEATHER PATTERN IS EXPECTED TO RESIDE OVER THE REGION DURING THIS TIME. A NEW UPPER LEVEL RIDGE WILL BUILD OVER CENTRAL MONTANA. THIS RIDGE WILL ALLOW AFTERNOON TEMPERATURES TO SLOWLY WARM BACKUP INTO THE MID 80S...(OR CLOSE TO 15 DEGREES ABOVE NORMAL) BY TUESDAY. OVERNIGHT LOWS WILL COOL NICELY DO TO DRY AIR IN PLACE. RIGHT NOW THE AIRMASS LOOKS TO STABLE AND DRY FOR ANY THUNDERSTORM ACTIVITY...BUT A VERY ISOLATED MOUNTAIN SHOWER CAN NOT BE RULED OUT...ESPECIALLY TOWARDS MID WEAK. BRUSDA TUESDAY NIGHT THROUGH FRIDAY NIGHT...UPPER LEVEL RIDGE TO BUILD OVER THE AREA THROUGH THURSDAY WITH AN UPPER LEVEL TROF DIGGING ALONG THE PACIFIC COAST. RETURN TO A MOIST SOUTHWESTERLY FLOW ALOFT THURSDAY NIGHT THROUGH FRIDAY NIGHT WITH AN INCREASE IN MOISTURE AND CHANCE OF PRECIPITATION. WARM TEMPERATURES WEDNESDAY AND THURSDAY WITH A WET AND COOLING TREND FOR FRIDAY. CAMP SATURDAY THROUGH SUNDAY...MODELS IN FAIR AGREEMENT DURING THIS PERIOD. AN UPPER LEVEL TROUGH MOVES ACROSS THE FORECAST AREA SATURDAY. MOST OF THE ENERGY AND MOISTURE WITH THIS SYSTEM GOES NORTH OF THE AREA. PARTLY TO MOSTLY CLOUDY SKIES ARE EXPECTED...WITH ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS FOR MOST AREAS. WEAK RIDGING ALOFT SUNDAY DRIES ALL BUT THE WESTERN MOUNTAINS WHERE A WESTERLY FLOW ALOFT RESULTS IN SCATTERED SHOWERS AND THUNDERSTORMS. TEMPERATURES COOL A FEW DEGREES BUT REMAIN NEAR SEASONAL AVERAGES. EK && .AVIATION... UPDATED 1803Z CENTRAL AND SOUTHWEST MONTANA IS UNDER A SEVERE THUNDERSTORM WATCH UNTIL 00Z. AN UPPER LEVEL SHORTWAVE IS MOVING ACROSS WESTERN MONTANA AND WILL BE MOVING INTO CENTRAL MONTANA DURING THE AFTERNOON. SCATTERED THUNDERSTORMS WILL DEVELOP WITH THE POTENTIAL OF STRONG...DAMAGING WINDS. GUSTS TO 60KTS ARE POSSIBLE NEAR THESE THUNDERSTORMS. MVFR CONDITIONS MAY DEVELOP NEAR THUNDERSTORMS BUT VFR CONDITIONS WILL PREVAIL ELSEWHERE DURING THE NEXT 24 HOURS. && .HYDROLOGY... NO HYDROLOGIC PROBLEMS ARE EXPECTED. && .PRELIMINARY POINT TEMPS/POPS... GTF 50 79 48 82 / 60 0 0 0 CTB 47 77 47 80 / 70 0 0 0 HLN 51 83 51 88 / 60 0 10 10 BZN 49 81 44 86 / 50 0 0 0 WEY 37 76 38 78 / 30 0 0 10 DLN 48 79 46 84 / 30 0 0 0 HVR 53 84 51 87 / 80 0 0 0 LWT 51 79 48 82 / 90 0 0 0 && .TFX WATCHES/WARNINGS/ADVISORIES... ...SEVERE THUNDERSTORM WATCH UNTIL 6 PM THIS EVENING FOR PORTIONS OF CENTRAL MONTANA AND ALL OF SOUTHWEST MONTANA... && SHORT TERM...BRUSDA LONG TERM...CAMP/EK/ZELZER AVIATION...ZELZER WEATHER.GOV/GREATFALLS
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE GREAT FALLS MT 930 AM MDT SUN JUN 4 2006 MTZ008>015-044>055-051200- BEAVERHEAD-NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL- CASCADE-CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON- TOOLE-LIBERTY-EASTERN PONDERA-BLAINE- SOUTHERN ROCKY MOUNTAIN FRONT-EASTERN TETON-JUDITH BASIN-FERGUS- JEFFERSON-BROADWATER-MEAGHER-GALLATIN- 930 AM MDT SUN JUN 4 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER ALL OF NORTH CENTRAL AND SOUTHWEST MONTANA THIS AFTERNOON AND EVENING... WIDESPREAD SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER MOST NORTH CENTRAL AND SOUTHWEST MONTANA THIS AFTERNOON. A FEW OF THESE STORMS MAY BECOME SEVERE LATE IN THE AFTERNOON AND EARLY IN THE EVENING...WITH THE MAIN THUNDERSTORM THREATS BEING DAMAGING WIND GUSTS AND HAIL. THE BEST TIME FRAME FOR THE SEVERE THUNDERSTORMS TO OCCUR IS FROM 2 PM THIS AFTERNOON...UNTIL 9 PM THIS EVENING. LISTEN TO NOAA WEATHER RADIO...OR YOUR LOCAL MEDIA FOR THE LATEST UPDATES. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. BRUSDA
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
318 PM MDT SUN JUN 04 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0309 PM TSTM WND GST 12 W HELENA 46.60N 112.27W
06/04/2006 M52.00 MPH LEWIS AND CLARK MT MESONET
&&
BRUSDAThe Great Falls radar (KTFX), 99 km away, was scanning. The volume nearest the first event began at 21:27 UTC.
17 thunderstorm wind, 1 funnel cloud. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2006Every state in 2006This day in weather historyWarnings in Montana, June 2006
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5505443, 5505444, 5505148, 5505445, 5505067, 5505071, 5505446, 5505070, 5505066, 5505068, 5505447, 5505069, 5505074, 5505072, 5505073, 5505146, 5505145, 5505147.