Record rainfall in the area coupled with wet antecedent conditions lead to continued flooding from April.
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 GGW wrote it up.
Record rainfall in the area coupled with wet antecedent conditions lead to continued flooding from April.
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 Glasgow, MT wrote its last area forecast discussion before the first event at Apr 30, 7:47 PM MST, 4 hours 13 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GLASGOW MT 847 PM MDT SAT APR 30 2011 .SHORT TERM...FOR NORTHEAST MONTANA...TONIGHT THROUGH MONDAY... HAVE UPDATED MAINLY THE POP...SKY AND WEATHER GRIDS FOR TONIGHT. IT LOOKS LIKE SHOWERS AND ISOLATED THUNDERSTORMS IN THE NW FLOW SHOULD CRUISE THROUGH THE SW HALF OF THE CWA THROUGH THE OVERNIGHT. NE ZONES SHOULD STAY DRY WHILE WINDS DECREASE OVER THE EASTERN ZONES. HAVE DROPPED ALL HIGHLIGHTS. QUITE THE POWERFUL STORM TO BLAST THE FAR EASTERN ZONES INT HE PAST 24 HOURS. WILL POST LOCAL STORM REPORTS AS MORE INFORMATION BECOMES AVAILABLE. JAMBA PREVIOUS DISCUSSION... A VERY STRONG STACKED LOW PRESSURE SYSTEM CONTINUES TO...EVERY SO SLOWLY...MOVE TO THE EAST OVER CENTRAL NORTH DAKOTA. AS PER SPOTTER REPORTS THE HEAVY SNOW BAND BEING DRIVEN ON THE BACKSIDE OF THE LOW BY THE ASSOCIATED TROWAL FEATURE HAS LARGELY EXITED THE TREASURE STATE. THAT BEING SAID WINDS CONTINUE TO HOWL ACROSS MUCH OF NORTHEAST MONTANA...DRIVING VISIBILITY REDUCING BLOWING SNOW. THUS WILL HOLD ON TO THE EXISTING BLIZZARD WARNING FOR THE FAR EASTERN ZONES. FURTHER WEST STRONG WINDS CONTINUE AS WELL THANKS TO THE VERY TIGHT GRADIENT...AGAIN EXPANDED THE HIGH WIND WARNING...NOW INCLUDING SOUTHERN VALLEY AND GARFIELD COUNTIES AS OBSERVATIONS THERE ARE NOW REACHING CRITERIA. ALL OFF THIS IS EXPECTED TO SOON COME TO AN END. THE SURFACE LOW WILL PUSH INTO WESTERN MINNESOTA BY EARLY EVENING...ALLOWING WINDS TO FINALLY BEGIN TO DECREASE ACROSS NORTHEAST MONTANA AS THE GRADIENT RELAXES. A NORTHWEST FLOW ON THE HEELS OF THE EXITING LOW COULD PROVIDE ENOUGH INSTABILITY FOR A FEW ISOLATED SHOWERS TONIGHT. SUNDAY WILL BRING WARMER TEMPERATURES AND A SHORTWAVE FEATURE THAT WILL DRIVE SOME DECENT INSTABILITY CREATING THE POTENTIAL FOR SCATTERED SHOWERS AND ISOLATED THUNDER. WINDS WILL BE MUCH LESS BUT REMAIN OUT OF THE NORTHWEST AT 15 TO 25 MPH. SUNDAY NIGHT SHOWER/THUNDERSTORM ACTIVITY WILL QUICKLY DISSIPATE WITH THE SETTING SUN. THIS WILL MAKE FOR DRYING CONDITIONS AND CLEARING SKIES. MONDAY LOOKS TO BE A PLEASANT DAY UNDER AS STABLE CONDITIONS DEVELOP. THE RESULT WILL BE WARMING TEMPS AND SUNNY SKIES. GILCHRIST .LONG TERM...MONDAY NIGHT THROUGH SATURDAY... LONG TERM FORECAST PERIOD BEGINS WITH A BRIEF PERIOD OF UPPER LEVEL SHORT WAVE RIDGING WHICH WILL BRING A SMALL BREAK IN THE PERSISTENT WEATHER PATTERN. MOST OF NORTHEAST MONTANA WILL ENJOY RELATIVELY MILD EVENING TEMPERATURES AND WINDS FROM THE SOUTH AT 5 TO 10 MPH. EARLY TUESDAY THROUGH THURSDAY...ANOTHER UPPER LEVEL TROUGH AND CLOSED LOW EMERGES OVER THE NORTHERN ROCKIES AND ACROSS THE NORTHERN HIGH PLAINS BRINGING QUITE GOOD CHANCES FOR RAIN SHOWERS ACROSS MOST OF NORTHEAST MONTANA. BREEZY TO STRONG WESTERLY WINDS WILL ACCOMPANY A COLD FRONT PROGGED TO MOVE THROUGH THE REGION BY MID DAY TUESDAY. WEDNESDAY AFTERNOON AND EVENING WINDS WILL ALSO INCREASE AS A REINFORCING PUSH FROM THE NORTHWEST SWEEPS THROUGH THE AREA. THURSDAY NIGHT THROUGH SATURDAY...WEAK RIDGING MOVES INTO NORTHEAST MONTANA FROM THE WEST...ALLOWING TEMPERATURES TO WARM UP TO THE HIGHEST LEVELS THIS SEASON. ALTHOUGH SOME MODEL DISCREPANCIES START TO CREEP IN HERE AT THIS TIME FRAME WITH AN BIT OF AN UNSETTLED CYCLING AND REPEATING WEATHER PATTERN SEEMS TO CONTINUE ITS HOLD ON THE NORTHERN TIER STATES AND SOUTHERN CANADA. BMICKELSON PREVIOUS LONG TERM DISCUSSION...AN UPPER TROUGH...CURRENTLY SOUTH OF THE ALEUTIANS...WILL SWING OVER VANCOUVER ISLAND MONDAY EVENING. THIS WILL SPIN UP A STACKED CYCLONIC STORM OVER THE SOUTHERN CANADIAN PRAIRIE BY TUESDAY SENDING A COLD FRONT ACROSS NORTHEAST MONTANA. THE STORM MAY BE POSITIONED NORTH ENOUGH FOR MOST PRECIPITATION TO REMAIN TO OUR NORTH. THE TROUGH ENERGY SPLITS AS THE BASE OF THE TROUGH SENDING ENERGY ACROSS THE CENTRAL ROCKIES. THE BEST BET FOR NOW IS TO KEEP POPS IN FOR TUESDAY AND THURSDAY WHEN THE TROUGH MOVES FARTHER EAST. THE WINDS WILL BECOME NORTHWESTERLY AFTER THE FRONTAL PASSAGE AND INCREASE TO 15-25KTS THROUGH THURSDAY. THE WEAK UPPER RIDGING WILL DRY CONDITIONS OUT BEGINNING THURSDAY NIGHT AND ALLOW WINDS TO DIMINISH. WITH 850MB TEMPERATURES REMAINING ABOVE 0*C MOST PRECIPITATION SHOULD REMAIN LIQUID AND MAXIMUM SURFACE TEMPERATURES WILL NOT WANDER FAR FROM NORMAL. GFS...GEM AND EC FRONTAL AND TROUGH TIMING ARE SIMILAR...AS ARE GENERAL FEATURES THROUGH WEDNESDAY. THEN THE MODELS BUILD AN UPPER RIDGE ALONG THE WEST COAST WHICH MOVES OVER THE AREA AROUND THURSDAY NIGHT. BY FRIDAY THE MODELS GO OUT OF PHASE WITH THE NEXT STORM SYSTEM DROPPING OUT OF THE GULF OF ALASKA. THEREFORE MOST OF THE EXTENDED PERIOD THROUGH THURSDAY NIGHT THE MODELS ARE IN GOOD AGREEMENT. SCT && .AVIATION... VFR TONIGHT. NW WINDS RAPIDLY DIMINISHING TO 10 TO 20 KT THIS EVENING...BECOMING LIGHT LATE TONIGHT FOR SUNDAY...ENOUGH DAYTIME HEATING WILL SET OFF A FEW SCATTERED SHOWERS. FOR NOW...DO NOT THINK IT WILL IMPACT A TAF SITE EXCEPT FOR VICINITY SHOWERS. BMICKELSON && .HYDROLOGY... THE MILK RIVER CONTINUES ITS VERY SLOW DECLINE FROM TAMPICO TO NASHUA. THE RIVER AT TAMPICO IS BELOW FLOOD STAGE. THE RIVER AT GLASGOW AND NASHUA ARE AT MINOR FLOOD STAGE AND GRADUALLY FALLING. THIS TREND SHOULD CONTINUE FOR AT LEAST THE NEXT WEEK. && .GLASGOW WATCHES/WARNINGS/ADVISORIES...NONE. && WEATHER.GOV/GLASGOW
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE GLASGOW MT 625 PM MDT SAT APR 30 2011 MTZ016>027-059>062-010130- CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY- DANIELS-SHERIDAN-WESTERN ROOSEVELT-PETROLEUM-GARFIELD-MCCONE- RICHLAND-DAWSON-PRAIRIE-WIBAUX-NORTHERN PHILLIPS- SOUTHWEST PHILLIPS-NORTHERN VALLEY-EASTERN ROOSEVELT- 625 PM MDT SAT APR 30 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
751 PM MDT SAT APR 30 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0100 PM HEAVY SNOW SIDNEY 47.72N 104.16W
04/30/2011 E8.0 INCH RICHLAND MT EMERGENCY MNGR
BLIZZARD CONDITIONS WITH THE HEAVY WET SNOW WEIGHED DOWN
ON TREES AND POWER LINES. SEVERAL TREES WERE KNOCKED OVER
AS WELL AS BRANCHES WITH DIAMETERS OF 4 TO 6 INCHES.
SCATTERED POWER OUTAGES ALSO OCCURRED WITH THE STORM
SINCE LAST NIGHT.
&&
TEDJPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
932 PM MDT SAT APR 30 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0430 PM NON-TSTM WND DMG BAINVILLE 48.14N 104.22W
04/30/2011 ROOSEVELT MT EMERGENCY MNGR
THE COMBINATION OF SNOW AND WIND CONTRIBUTED TO DAMAGE TO
ABOUT 300 POWER POLES ACROSS EASTERN ROOSEVELT AND
SHERIDAN COUNTIES TODAY. AN ESTIMATED 1500 RESIDENTS WERE
WITHOUT POWER. INFORMATION RELAYED BY ROOSEVELT COUNTY
EMERGENCY MANAGEMENT.
&&
TEDJPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GLASGOW MT
1040 PM MDT SAT APR 30 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0248 AM BLIZZARD PLENTYWOOD 48.77N 104.56W
04/30/2011 SHERIDAN MT LAW ENFORCEMENT
FROM PLENTYWOOD TO ANTELOPE...200 FT TO 1/2 MI VISIBILITY
WITH GUSTY WINDS...SWITCHING TO RAIN AND SNOW.
0335 AM BLIZZARD 10 N LINDSAY 47.36N 105.15W
04/30/2011 DAWSON MT TRAINED SPOTTER
1.5 INCHES OF SNOW WITH 35 MPH WINDS GUSTING TO 50 MPH.
LOST POWER ABOUT 1 HOUR AGO.
0405 AM BLIZZARD ESE WESTBY 48.87N 104.05W
04/30/2011 DIVIDE ND TRAINED SPOTTER
BLOWING SNOW...LESS THAN 1/4 MI VISIBILITY. CURRENTLY
WITHOUT POWER. 1.5 FOOT DRIFTS. MEDICINE LAKE AND
HOMESTEAD ALSO WITHOUT POWER.
0415 AM BLIZZARD PLENTYWOOD 48.77N 104.56W
04/30/2011 SHERIDAN MT LAW ENFORCEMENT
HIGHWAY 5 EAST MILE MARKER 7 HAS WHITEOUT
CONDITIONS...DEPUTY HAD TO STOP DUE TO VERY LITTLE
VISIBILITY.
0420 AM BLIZZARD WIBAUX 46.99N 104.19W
04/30/2011 WIBAUX MT EMERGENCY MNGR
TRUCKS HAVE BEEN REPORTED SLIDING OFF OF INTERSTATE
94...LESS THAN 1/4 MI VISIBILITY. 1-2 INCHES OF SNOW ON
THE GROUND WITH WINDS 30-35 MPH.
0605 AM BLIZZARD 15 SSE CULBERTSON 47.93N 104.45W
04/30/2011 RICHLAND MT TRAINED SPOTTER
VISIBILITY 1/8 MI...1 INCH OF SNOW WITH 1-2 FOOT
DRIFTS...25-35 MPH WINDS AND STILL SNOWING
0612 AM BLIZZARD 5 WSW GLENDIVE 47.08N 104.82W
04/30/2011 DAWSON MT TRAINED SPOTTER
74 MPH WIND GUST AT 504 AM...42 MPH SUSTAINED
0628 AM BLIZZARD WIBAUX 46.99N 104.19W
04/30/2011 WIBAUX MT EMERGENCY MNGR
NO POWER IN WIBAUX...WIND GUSTS AT BAKER 63 MPH.
0640 AM BLIZZARD S NAVAJO 48.79N 105.06W
04/30/2011 DANIELS MT TRAINED SPOTTER
WIND 35 MPH GUSTING TO 51 MPH. 0.10 OF PRECIP OVERNIGHT.
ICE ON NORTH FACE OF BUILDINGS.
0644 AM BLIZZARD 2 W BLOOMFIELD 47.41N 104.96W
04/30/2011 DAWSON MT TRAINED SPOTTER
62 MPH WIND GUST...40-45 MPH SUSTAINED. AT LEAST 2 INCHES
OF SNOW ON THE GROUND
0700 AM BLIZZARD 2 WSW GLENDIVE 47.10N 104.75W
04/30/2011 DAWSON MT TRAINED SPOTTER
VISIBILITY IS LESS THAN 1/4 MILE. SNOW AND BLOWING SNOW
IS OCCURING. 0.73 INCHES OF MOISTURE AND 0.5 INCHES OF
SNOW SO FAR.
0700 AM SNOW 1 S SAVAGE 47.44N 104.34W
04/30/2011 U0.0 INCH RICHLAND MT PUBLIC
COCORAHS OBSERVER MEASURED 0.96 INCHES OF MOISTURE.
0700 AM SNOW 3 NNE SIDNEY 47.76N 104.13W
04/30/2011 M4.0 INCH RICHLAND MT PUBLIC
COCORAHS OBSERVER MEASURED 1.63 INCHES OF MOISTURE.
0710 AM BLIZZARD 5 WNW WIBAUX 47.02N 104.28W
04/30/2011 WIBAUX MT TRAINED SPOTTER
NEAR 0 VISIBILITY...45-50 MPH WINDS AND NO POWER.
0710 AM BLIZZARD ESE WESTBY 48.87N 104.05W
04/30/2011 DIVIDE ND TRAINED SPOTTER
VISIBILITY 15-20 FEET...VERY GUSTY WINDS AND STILL NO
POWER.
0815 AM BLIZZARD 2 SSE SAINT PHILLIP 46.80N 104.12W
04/30/2011 WIBAUX MT TRAINED SPOTTER
3 FOOT DRIFTS WITH 50 MPH WINDS GUSTING TO 60
MPH...VISIBILITY LESS THAN 50 YARDS WITH WET HEAVY SNOW
0832 AM BLIZZARD 9 NW CARLYLE 46.73N 104.22W
04/30/2011 WIBAUX MT TRAINED SPOTTER
100 FOOT VISIBILITY...2 FOOT DRIFTS WITH 35 MPH WINDS
0902 AM BLIZZARD 1 SE WIBAUX 46.98N 104.18W
04/30/2011 WIBAUX MT TRAINED SPOTTER
WINDS ARE ESTIMATED TO BE SUSTAINED AT LEAST 45 TO 50
MPH. WHITEOUT CONDITIONS.
0920 AM BLIZZARD WESTBY 48.87N 104.05W
04/30/2011 SHERIDAN MT CO-OP OBSERVER
WHITEOUT CONDITIONS WILL ESTIMATED WINDS SUSTAINED ABOVE
40 MPH. NO ELECTRICITY.
0928 AM BLIZZARD WESTBY 48.87N 104.05W
04/30/2011 SHERIDAN MT PUBLIC
CURRENTLY SNOWING AND BLOWING. WINDS ESTIMATED TO BE NEAR
80 MPH BETWEEN 7 AM AND 9 AM. ANTENNA ON TOP OF THE HOUSE
HAS BLOWN OFF AND A TREE OF 5 TO 6 INCH DIAMETER
UPROOTED.
1010 AM BLIZZARD 1 SE WIBAUX 46.98N 104.18W
04/30/2011 WIBAUX MT TRAINED SPOTTER
ESTIMATED 6 INCHES OF SNOW SO FAR AND IS CURRENTLY
SNOWING AND BLOWING. VISIBILITY IS ABOUT 100 FEET.
SEVERAL 2 INCH DIAMETER BRANCHES HAVE FALLEN. REPORTED
THAT TWO SEMI TRUCKS ARE STUCK IN DITCHES ON HWY 7 AND
THE INTERSTATE.
1022 AM BLIZZARD WIBAUX 46.99N 104.19W
04/30/2011 WIBAUX MT LAW ENFORCEMENT
SNOWING AND BLOWING. SEVERAL CARS ARE STUCK ON THE ROADS.
THE DOT PLOWS ARE ALSO STUCK ON THE ROADS. ESTIMATED 7 TO
8 INCHES OF SNOW SO FAR. SEVERAL BRANCHES HAVE FALLEN
ONTO THE ROADS WITH THE LARGEST ONE 10 TO 12 INCHES IN
DIAMETER.
1035 AM BLIZZARD WESTBY 48.87N 104.05W
04/30/2011 SHERIDAN MT TRAINED SPOTTER
CURRENTLY SNOWING AND BLOWING. VISIBILITY IS ABOUT 200
FEET. SNOW DRIFTS ARE 2 TO 3 FEET IN THE YARD. A 30 FOOT
TALL PINE TREE WITH A 15 TO 20 INCH DIAMETER IS UPROOTED
OVER ON THE PROPERTY.
1045 AM BLIZZARD 10 WNW CARLYLE 46.69N 104.27W
04/30/2011 WIBAUX MT TRAINED SPOTTER
WHITEOUT CONDITIONS WITH 4 FOOT DRIFTS IN THE YARD.
1100 AM SNOW 15 SSE CULBERTSON 47.93N 104.45W
04/30/2011 U0.0 INCH RICHLAND MT TRAINED SPOTTER
MOISTURE FROM THE SNOW BETWEEN 4PM YESTERDAY TO 10AM
TODAY WAS 0.80 INCHES.
1130 AM BLIZZARD BAINVILLE 48.14N 104.22W
04/30/2011 ROOSEVELT MT TRAINED SPOTTER
VISIBILITY IS ABOUT 10 FEET AT MOST EAST OF BAINVILLE
NEAR THE STATELINE. MULTIPLE CARS ARE STUCK ON THE
HIGHWAY OR HAVE SLID OFF IN THE DITCH. POWERLINES ARE
DOWN.
1245 PM BLIZZARD CRANE 47.58N 104.26W
04/30/2011 RICHLAND MT TRAINED SPOTTER
WHITEOUT CONDITIONS WITH ESTIMATED 4 INCHES OF NEW SNOW
SO FAR. POWER WENT OUT AROUND MIDNIGHT. ESTIMATED WINDS
TO BE GREATER THAN 45 MPH. THERE ARE 3 FOOT DRIFTS IN THE
NEIGHBORS YARD.
1248 PM NON-TSTM WND GST JORDAN 47.32N 106.91W
04/30/2011 M51.00 MPH GARFIELD MT ASOS
SUSTAINED WINDS GREATER THAN 30 MPH SINCE 948AM. HIGHEST
GUST OCCURRED BETWEEN 1148AM AND 1148PM.
0100 PM HEAVY SNOW SIDNEY 47.72N 104.16W
04/30/2011 E8.0 INCH RICHLAND MT EMERGENCY MNGR
BLIZZARD CONDITIONS WITH THE HEAVY WET SNOW WEIGHED DOWN
ON TREES AND POWER LINES. SEVERAL TREES WERE KNOCKED OVER
AS WELL AS BRANCHES WITH DIAMETERS OF 4 TO 6 INCHES.
SCATTERED POWER OUTAGES ALSO OCCURRED WITH THE STORM
SINCE LAST NIGHT.
0136 PM BLIZZARD 2 E WIBAUX 46.99N 104.15W
04/30/2011 WIBAUX MT CO-OP OBSERVER
STILL SNOWING AND BLOWING. ESTIMATED 6 TO 7 INCHES OF
SNOW SO FAR. THERE ARE 4 TO 5 FOOT DRIFTS.
0144 PM NON-TSTM WND GST 14 NNW HELL CREEK RECRE 47.80N 107.02W
04/30/2011 M58.00 MPH VALLEY MT MESONET
SUSTAINED WINDS GREATER THAN 30MPH SINCE 1044AM AT THE
KING COULEE RAWS. HIGHEST GUST OCCURRED AT 144PM.
0156 PM SNOW PLENTYWOOD 48.77N 104.56W
04/30/2011 E2.0 INCH SHERIDAN MT CO-OP OBSERVER
SNOW STOPPED AROUND 11AM AND TOTAL SNOW IS ESTIMATED TO
1.5 TO 2 INCHES. CURRENT WINDS ARE ESTIMATED TO BE
BETWEEN 25 TO 45 MPH. A LARGE TREE IN TOWN HAS SPLIT AND
THE BRANCH THAT FELL WAS 12 TO 16 INCH DIAMETER.
0204 PM SNOW BAINVILLE 48.14N 104.22W
04/30/2011 U0.0 INCH ROOSEVELT MT CO-OP OBSERVER
SNOW STOPPED AROUND 12PM. CURRENT WINDS ARE ESTIMATED TO
BE AROUND 40 MPH. THERE ARE 2.5 TO 3 FOOT DRIFTS IN THE
YARD. THE WINDS KNOCKED DOWN A PANEL FENCE. THEY HAVE
BEEN WITHOUT POWER SINCE 520AM.
0232 PM SNOW 9 NW CARLYLE 46.73N 104.22W
04/30/2011 M12.0 INCH WIBAUX MT TRAINED SPOTTER
SNOW TOTAL SO FAR SINCE YESTERDAY. CURRENTLY A MIX OF
RAIN AND SNOW IS FALLING.
0300 PM BLIZZARD 23 E PLENTYWOOD 48.77N 104.06W
04/30/2011 SHERIDAN MT TRAINED SPOTTER
8 INCH DIAMETER TREE SNAPPED. A FEW 6 INCH BRANCHES SPLIT
OFF TREE. 6 FOOT PLUS DRIFTS. 4 TO 5 FOOT DRIFTS AROUND
TOWN. ONE STOP SIGN ROTATED. LOCATION IN WESBY.
0406 PM HIGH SUST WINDS NNE NASHUA 48.14N 106.35W
04/30/2011 M45.00 MPH VALLEY MT MESONET
SUSTAINED WINDS ABOVE 40MPH SINCE 1255PM.
0430 PM NON-TSTM WND DMG BAINVILLE 48.14N 104.22W
04/30/2011 ROOSEVELT MT EMERGENCY MNGR
THE COMBINATION OF SNOW AND WIND CONTRIBUTED TO DAMAGE TO
ABOUT 300 POWER POLES ACROSS EASTERN ROOSEVELT AND
SHERIDAN COUNTIES TODAY. AN ESTIMATED 1500 RESIDENTS WERE
WITHOUT POWER. INFORMATION RELAYED BY ROOSEVELT COUNTY
EMERGENCY MANAGEMENT.
&&
TEDJPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1229 AM MDT SUN MAY 01 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1214 PM NON-TSTM WND GST 13 NW MCCLOUD 47.03N 105.80W
04/30/2011 M61 MPH PRAIRIE MT MESONET
BIG SHEEP RAWS SITE REPORTED SUSTAINED WINDS OF 38 MPH
GUSTING TO 61 MPH.
0123 PM HIGH SUST WINDS 8 SW BREDETTE 48.43N 105.44W
04/30/2011 M61 MPH ROOSEVELT MT MESONET
MCDONALD PASS RAWS REPORTED SUSTAINED WINDS OF 45 TO 55
MPH WITH GUST TO 61 MPH FROM 0123 AM TO 1344 PM.
&&
MATTMThe national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
The USGS River Gauge at Nashua showed falling levels to below the flood stage on May 1st.
The gauge at Glasgow fell to 28.6 feet on May 1st and down to 25 feet on May 5th, which is flood stage.
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, May 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: 309269, 309268.