7.
Every event with a place to put it. 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.
Recent snowmelt caused the Vaughn Frontage Road to be closed from mile marker 0 to mile marker 1.7.
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 Mar 14, 2:39 AM MST, 4 hours 37 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 339 AM MDT MON MAR 14 2011 .DISCUSSION... TODAY THROUGH WEDNESDAY...AN UPPER LEVEL HIGH PRESSURE RIDGE WILL BE EAST OF THE ZONES THIS MORNING AND HEIGHTS ALOFT WILL BE FALLING. MOISTURE AHEAD OF A LOW PRESSURE TROF OVER THE PACIFIC NORTHWEST WILL KEEP THE CWA UNDER MOSTLY CLOUDY SKIES. THE TROF WILL APPROACH THE ROCKIES BY MID DAY AND BE OVER THE CWA BY LATE AFTERNOON. THE STRONG FLOW ALOFT WILL CONTINUE INTO MONDAY EVENING. HEIGHTS ALOFT WILL RISE OVERNIGHT AND ANOTHER HIGH PRESSURE RIDGE WILL BE OVER THE ZONES TUESDAY. ALTHOUGH THE AIRMASS WILL COOL SLIGHTLY TODAY BEHIND THE TROF...IT WILL WARM UNDER THE RIDGE AND TEMPS WILL RECOVER SOMEWHAT BY TUESDAY. THIS RIDGE MOVES EAST TUESDAY EVENING AND A UPPER LEVEL JET WILL MOVE ACROSS NORTHERN CALIFORNIA AND APPROACH THE SOUTHWEST ZONES. THE CORE OF THIS JET WILL REMAIN OVER SOUTHERN IDAHO AND KEEP MUCH OF SOUTHWEST MONTANA UNDERNEATH UNSETTLED FLOW ALOFT. A SHORTWAVE MOVING THROUGH THE SOUTHWEST FLOW ALOFT WILL KEEP PRECIP LIKELY ACROSS THE SOUTHWEST...A CHANCE TO THE NORTH. ZELZER WEDNESDAY NIGHT THROUGH MONDAY...A GRADUAL AMPLIFICATION OF THE UPPER LEVEL PATTERN IS EXPECTED LATE THIS WEEK THROUGH THIS WEEKEND AS AN UPPER LEVEL TROUGH BECOMES ESTABLISHED ALONG THE WEST COAST. SOMEWHAT MOIST SW FLOW ALOFT WITH WEAK EMBEDDED ENERGY WILL BRING MAINLY MTN SHOWERS WEDNESDAY NIGHT THROUGH THURSDAY NIGHT WITH RIDGING DEVELOPING BY FRIDAY OVER THE REGION IN RESPONSE TO THE TROUGH AMPLIFICATION UPSTREAM ALONG THE WEST COAST. MEDIUM RANGE MODELS APPEAR TO BE COMING INTO SOMEWHAT BETTER AGREEMENT WITH THE DETAILS THIS WEEKEND...INDICATING A PORTION OF THE TROUGH CLOSING OFF AND DROPPING SOUTH ALONG THE COAST WHILE ANOTHER LOBE OF ENERGY EJECTS OUT AND ACROSS THE NORTHERN ROCKIES AND MT DURING THE LATE SATURDAY/SUNDAY TIME PERIOD BEFORE THE ENTIRE TROUGH BROADENS AND SHIFTS INLAND SUNDAY NIGHT INTO MONDAY. A TRANSITION TO A COOLER AND WETTER REGIME IS FAIRLY CERTAIN WITH THE BEST CHANCE FOR WIDESPREAD PRECIPITATION ACROSS THE AREA LOOKING TO BE LATE SATURDAY THROUGH SUNDAY MORNING...HOWEVER TIMING DIFFERENCES STILL EXIST AMONG THE MODELS. TEMPERATURES BEGIN AT SLIGHTLY ABOVE SEASONAL NORMS AND GRADUALLY COOL TO SLIGHTLY BELOW AVERAGE AS THE UPPER LEVEL TROUGH APPROACHES THE REGION THIS WEEKEND. COLD AIR DOES APPEAR SOMEWHAT LIMITED AT THIS TIME... HOWEVER SNOW LEVELS LOOK TO LOWER TO NEAR THE VALLEY FLOORS AND PLAINS BY SATURDAY NIGHT. HOENISCH && .AVIATION... UPDATED 0430Z. A BROAD UPPER LEVEL TROUGH STRETCHING FROM THE PACNW COAST TO WESTERN MT WILL CONTINUE TO BRING WIDESPREAD MID/HIGH LEVEL CLOUDS OVER CENTRAL AND SOUTHWEST MT TONIGHT INTO MON MORNING. BULK OF THIS SYSTEMS PRECIPITATION IS STILL IN ID/WA/OR SO WILL LIKELY NOT BE UNTIL MID-MORNING BEFORE WE SEE PRECIP EAST OF THE DIVIDE. MOST OF EXPECTED LIGHT RAIN WILL OCCUR ACROSS SOUTHWEST MT WITH CENTRAL AND NORTH CENTRAL TERMINALS REMAINING DRY. CONDITIONS SHOULD REMAIN VFR AT ALL TERMINALS TONIGHT WITH SOME INTERMITTENT MVFR POSSIBLE VCNTY KHLN/KBZN TOMORROW MORNING AS PRECIP ARRIVES. WINDS EXPECTED TO INCREASE AS THE TROUGH APPROACHES THEN MOVES ACROSS REGION ON MON. GUSTS OF 25 TO 40 KTS WILL BE POSSIBLE AT ALL TERMINALS. WARANAUSKAS && .HYDROLOGY... WARM TEMPERATURES OVER THE LAST FEW DAYS HAVE CAUSED SIGNIFICANT SNOWMELT ACROSS THE AREA. AREAS OF RURAL FLOODING HAVE DEVELOPED ACROSS NORTH CENTRAL MONTANA. MODERATE TEMPERATURES WILL CONTINUE THROUGH THE WEAK WITH HIGHS AND LOWS GENERALLY ABOVE NORMALS. && .PRELIMINARY POINT TEMPS/POPS... GTF 51 29 53 35 / 10 10 10 30 CTB 47 28 47 33 / 10 10 10 20 HLN 52 29 55 36 / 40 20 20 70 BZN 50 28 52 33 / 60 20 20 70 WEY 37 19 38 27 / 90 60 60 80 DLN 49 28 50 35 / 50 20 30 80 HVR 47 24 42 28 / 10 10 10 30 LWT 47 31 51 36 / 20 10 10 20 && .TFX WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING UNTIL MIDNIGHT MDT TONIGHT EASTERN GLACIER... NORTHERN ROCKY MOUNTAIN FRONT...SOUTHERN ROCKY MOUNTAIN FRONT. HIGH WIND WARNING UNTIL 9 AM MDT THIS MORNING MADISON. && WEATHER.GOV/GREATFALLS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREAT FALLS MT 744 AM MDT MON MAR 14 2011 MTZ009-010-048-151345- NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER- SOUTHERN ROCKY MOUNTAIN FRONT- 744 AM MDT MON MAR 14 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT A FLOOD WARNING FOR SMALL STREAMS IS IN EFFECT FOR PORTIONS OF TETON AND PONDERA COUNTIES THROUGH MONDAY EVENING. A HIGH WIND WARNING IS IN EFFECT INTO THIS EVENING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MTZ008-011-014-044-045-047-052>055-151345- BEAVERHEAD-HILL-CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE- LIBERTY-BLAINE-JEFFERSON-BROADWATER-MEAGHER-GALLATIN- 744 AM MDT MON MAR 14 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MTZ013-050-051-151345- CHOUTEAU-JUDITH BASIN-FERGUS- 744 AM MDT MON MAR 14 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA AND NORTH CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT A FLOOD ADVISORY FOR SMALL STREAMS IS IN EFFECT THROUGH THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MTZ046-049-151345- EASTERN PONDERA-EASTERN TETON- 744 AM MDT MON MAR 14 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT A FLOOD WARNING FOR SMALL STREAMS IS IN EFFECT FOR PORTIONS OF TETON AND PONDERA COUNTIES THROUGH MONDAY EVENING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MTZ015-151345- MADISON- 744 AM MDT MON MAR 14 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT A HIGH WIND WARNING IS IN EFFECT UNTIL 9 AM MDT THIS MORNING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MTZ012-151345- CASCADE- 744 AM MDT MON MAR 14 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT A SMALL STREAM FLOOD WARNING IS IN EFFECT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE SMALL STREAM FLOOD WARNING WILL CONTINUE IN EFFECT UNTIL EARLY WEDNESDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Vaughn Frontage Road was closed from mile marker 0 to mile marker 1.7 due to flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2011Every state in 2011This day in weather historyWarnings in Montana, March 2011
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: 370025.