Alert archive / Montana / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 29, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at Jul 1, 2015, 4:14 PM MDT for Dawson County, McCone County, Montana. It was in force for 37 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
- Jul 1, 2015, 4:14 PM MDT (22:14 UTC)
- Expired
- Jul 1, 2015, 4:51 PM MDT
- In force
- 37 min
- Issued by
- NWS Glasgow, MT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Dawson County, MT, McCone County, MT
The radar
The Glasgow radar (KGGW), 127 km from the middle of the area, began a volume at 22:14 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
Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 10.2 hours before the alert went out and 126 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
- 757 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Glasgow, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 1, 3:02 PM MDT, 1 hour 12 minutes earlier.
Area forecast discussion, Jul 1, 3:02 PM MDT, 1 hour 12 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GLASGOW MT 302 PM MDT WED JUL 1 2015 .SHORT TERM...FOR NORTHEAST MONTANA...TONIGHT THROUGH FRIDAY... NORTHWEST FLOW ALOFT WILL CONTINUE TONIGHT AS A SHORTWAVE TROUGH MAKES ITS WAY TROUGH NORTHEAST MONTANA. THIS FEATURE WILL BRING WIDESPREAD TO SCATTERED SHOWERS AND THUNDERSTORMS TO THE REGION AS IT PASSES THIS AFTERNOON AND EVENING. THERE REMAINS A THREAT FOR AN ISOLATED SEVERE STORM TO POP UP...BUT OVERALL GENERAL THUNDERSTORMS ARE EXPECTED THROUGH THE EVENING HOURS. A NORTHERLY COMPONENT TO THE WINDS WILL CONTINUE SMOKE FROM CANADIAN FOREST FIRES ACROSS THE REGION TONIGHT THROUGH THURSDAY NIGHT. THURSDAY WEAK RIDGING WILL MAKE FOR MAINLY DRY CONDITIONS...WITH JUST AN ISOLATED STORM POSSIBLE DURING THE AFTERNOON ALONG THE NORTH DAKOTA BORDER. THURSDAY NIGHT HIGH PRESSURE WILL CONTINUE...MAKING FOR DRY CONDITIONS WITH MOSTLY CLEAR SKIES. LIGHT NORTHERLY WINDS WILL KEEP A MENTION OF SMOKE IN THE FORECAST. GILCHRIST .LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY... GREATEST FORECAST CHALLENGE IN THE EXTENDED PERIOD IS THE STRONG COLD FRONT EXPECTED ON SATURDAY EVENING AND ITS POSSIBLE IMPACTS ON FORTH OF JULY FIREWORKS SHOWS ACROSS THE REGION. MODELS ALSO INDICATING POSSIBLE DRY THUNDERSTORMS AS INSTABILITY IS HIGH BUT QPF AND PRECIP OUTPUT IS NEXT TO NOTHING. THE FORTH OF JULY WILL BE HOT WITH MID-DAY WIND UP TO 15 MPH FROM THE SOUTH. THE COLD FRONT WILL MOVE INTO THE AREA SOMETIME LATER SATURDAY AFTERNOON WITH WINDS UP TO 20 MPH FROM THE NORTHWEST...THEN FROM THE NORTH SATURDAY EVENING UP TO 30 MPH. TRIED TO UPDATE THE WIND GRIDS ON SATURDAY WITH THE HIGHER END OF FORECAST GUIDANCE. THE REMAINDER OF THE EXTENDED PERIOD POPS WERE ADJUSTED WITH A BLEND OF THE GFS AND EC WITH HIGHER CONFIDENCE WHERE MODELS SHOWED THE BEST AGREEMENT. BMICKELSON ZONAL FLOW ALOFT ON SATURDAY WILL PUSH ACROSS THE NORTHERN HIGH PLAINS ALONG THE NORTHERN PERIPHERY OF A STRONG RIDGE DOMINATING OVER THE WESTERN CONUS. MODEL 850MB TEMPERATURES WILL RANGE FROM +22C NEAR THE CANADIAN BORDER TO +28C IN THE FAR SOUTHWEST ZONES ON SATURDAY AFTERNOON. MEANWHILE...A SHORTWAVE TROUGH SLIDING DOWN BRITISH COLUMBIA WILL APPROACH THE REGION...BUT THERE REMAINS SOME QUESTION IN TIMING AND EVOLUTION. THE GFS IS MORE PROGRESSIVE AND WOULD HAVE AN ASSOCIATED SURFACE COLD FRONT PUSHING THROUGH THE REGION LATE SATURDAY AFTERNOON...WHILE THE ECMWF IS MORE SUPPORTIVE OF EVENING AND NIGHTTIME PASSAGE. ALTHOUGH...EVEN THE LATEST ECMWF SHOWS TIGHTLY PACKED 850MB THERMAL GRADIENT NEAR THE CANADIAN BORDER BY LATE SATURDAY AFTERNOON. WITH THIS IN MIND...HAVE FAIR AMOUNT OF CONFIDENCE ON A HOT DAY FOR AREAS SOUTH OF THE MISSOURI RIVER. HIGHS SHOULD REACH THE MID...EVEN UPPER 90S. NEAR THE CANADIAN BORDER...UNCERTAINTY REMAINS BUT IT WILL LIKELY BE AT LEAST SOMEWHAT LESS HOT DUE TO EARLY FROPA AND INCREASED CLOUDINESS OUT AHEAD OF IT. WILL GO WITH UPPER 80S TO NEAR 90 IN THOSE LOCATIONS FOR NOW. EXPECT A STRONG WIND SHIFT WITH THE FRONT...SOUTH WINDS BECOMING NORTH AND NORTHWEST...WITH COLD AIR ADVECTION HELPING TO MIX DOWN SOME GUSTY CONDITIONS. WOULD NOT BE SURPRISED TO SEE 15-25 MPH SUSTAINED WITH GUSTS TO 35 MPH IN THIS ENVIRONMENT. THESE CHANGING CONDITIONS ARE OF SIGNIFICANT TO THOSE WITH HOLIDAY PLANS ON THE NIGHT OF THE 4TH...AND THESE CONDITIONS MAY BE ENOUGH TO PROMPT ISSUANCE OF A LAKE WIND ADVISORY DOWN THE ROAD. MODEL GUIDANCE IS ALSO SUPPORTIVE OF AT LEAST ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORMS DURING THE AFTERNOON...LINGERING INTO THE NIGHT. HOWEVER...TIMING/PLACEMENT REMAINS VERY MUCH IN QUESTION AT THIS POINT...BUT BETTER CONSENSUS FOR NOW APPEARS TO BE NEAR THE CANADIAN BORDER. TEMPERATURES WILL BE COOLER IN THE WAKE OF THE FRONT...WITH HIGHS IN THE 70S AND LOW 80S SUNDAY INTO THE MIDDLE OF NEXT WEEK. WEAK SHOWER/THUNDERSTORM CHANCES WILL HINGE ON SHORTWAVES EMBEDDED IN THE FLOW. AT THIS POINT THE ONE WITH MOST PROMISE APPEARS TO BE TOWARD THE END OF THE PERIOD. MALIAWCO && .AVIATION... FLIGHT CATEGORY: MAINLY MVFR. SYNOPSIS: SMOKE FROM CANADIAN WILDFIRES WILL PERSIST OVER NORTHEAST MONTANA INTO TUESDAY AS LOW LEVEL NORTH TO NORTHWEST FLOW CONTINUES. THUNDERSTORMS THIS AFTERNOON WILL ALSO HAVE THE POSSIBILITY TO BRING GUSTY ERRATIC WINDS AS WELL AS MVFR CIGS AND OR VISIBILITY TO ANY OF THE TERMINALS THROUGH EARLY THURSDAY. WINDS: GENERALLY NORTH TO NORTHWEST 8-12MPH. GILCHRIST && .GLASGOW WATCHES/WARNINGS/ADVISORIES...NONE. && WEATHER.GOV/GLASGOW
Hazardous weather outlook, Jul 1, 3:06 PM MDT, 1 hour 8 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 306 PM MDT WED JUL 1 2015 MTZ016>027-059>062-021200- 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- 306 PM MDT WED JUL 1 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING ACROSS NORTHEAST MONTANA. A FEW STORMS MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY HOT AND DRY CONDITIONS ARE EXPECTED ON THE 4TH OF JULY. A MAINLY DRY COLD FRONT IS ALSO EXPECTED TO BRING SHIFTING WINDS AND THE POSSIBILITY OF DRY THUNDERSTORMS TO THE AREA. PLEASE CONTINUE TO MONITOR THE FORECAST FOR ADDITIONAL DETAILS AS THEY BECOME AVAILABLE. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Special weather statement, Jul 1, 2:39 PM MDT, 1 hour 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GLASGOW MT 239 PM MDT WED JUL 1 2015 MTZ016-017-012145- PHILLIPS-VALLEY- 239 PM MDT WED JUL 1 2015 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... SOUTHWESTERN VALLEY COUNTY IN NORTHEAST MONTANA... EASTERN PHILLIPS COUNTY IN NORTHEAST MONTANA... UNTIL 345 PM MDT. AT 237 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 15 MILES SOUTHEAST OF MALTA...MOVING SOUTHEAST AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING. LOCATIONS IN THE ADVISORY INCLUDE... CONTENT... LAT...LON 4809 10680 4772 10746 4814 10778 4830 10764 TIME...MOT...LOC 2039Z 311DEG 20KT 4819 10765 MICKELSON WEATHER.GOV/GLASGOW
Special weather statement, Jul 1, 2:58 PM MDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GLASGOW MT
258 PM MDT WED JUL 1 2015
MTZ061-012200-
VALLEY-
258 PM MDT WED JUL 1 2015
THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
NORTHERN VALLEY COUNTY IN NORTHEAST MONTANA...
UNTIL 400 PM MDT.
AT 256 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 22 MILES WEST OF OPHEIM...MOVING SOUTHEAST AT 25
MPH.
HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING.
LOCATIONS IN THE ADVISORY INCLUDE...
OPHEIM...
LAT...LON 4883 10618 4857 10679 4897 10715 4901 10707
4901 10675
TIME...MOT...LOC 2058Z 311DEG 21KT 4889 10687
MICKELSON
WEATHER.GOV/GLASGOWSpecial weather statement, Jul 1, 3:06 PM MDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GLASGOW MT 306 PM MDT WED JUL 1 2015 MTZ017-020-023-012200- MCCONE-ROOSEVELT-VALLEY- 306 PM MDT WED JUL 1 2015 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... EASTERN VALLEY COUNTY IN NORTHEAST MONTANA... SOUTHWESTERN ROOSEVELT COUNTY IN NORTHEAST MONTANA... NORTHEASTERN MCCONE COUNTY IN NORTHEAST MONTANA... UNTIL 400 PM MDT. AT 304 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 11 MILES SOUTH OF LUSTRE...MOVING SOUTHEAST AT 25 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING. LOCATIONS IN THE ADVISORY INCLUDE... WOLF POINT... LAT...LON 4816 10518 4784 10580 4824 10606 4833 10594 TIME...MOT...LOC 2106Z 311DEG 20KT 4823 10592 MICKELSON WEATHER.GOV/GLASGOW
Special weather statement, Jul 1, 3:20 PM MDT, 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GLASGOW MT 320 PM MDT WED JUL 1 2015 MTZ017-022-012215- GARFIELD-VALLEY- 320 PM MDT WED JUL 1 2015 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... SOUTHERN VALLEY COUNTY IN NORTHEAST MONTANA... NORTHEASTERN GARFIELD COUNTY IN NORTHEAST MONTANA... UNTIL 415 PM MDT. AT 317 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 12 MILES NORTHWEST OF THE PINES REC AREA...MOVING SOUTHEAST AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS IN THE ADVISORY INCLUDE... THE PINES REC AREA AND THE PINES RECREATION AREA... LAT...LON 4780 10630 4758 10667 4793 10694 4797 10688 TIME...MOT...LOC 2120Z 311DEG 20KT 4790 10684 MICKELSON WEATHER.GOV/GLASGOW
Local storm report, Jul 1, 3:28 PM MDT, 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
328 PM MDT WED JUL 01 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0459 PM TORNADO 11 SE CRANE 47.47N 104.10W
06/30/2015 RICHLAND MT NWS STORM SURVEY
*** 1 INJ *** NWS GLASGOW CONDUCTED A DAMAGE SURVEY TODAY
WITH RICHLAND COUNTY DES OF A SITE THAT HAD DAMAGE FROM
LAST NIGHTS STORMS. A 79 YEAR OLD MAN WAS INJURED AND WAS
TAKEN IN FOR MEDICAL CARE. DAMAGE WAS RATED AT AN EF-1
WITH WINDS ESTIMATED UP TO 100 MPH. THE TORNADO TRAVELED
EAST-SOUTHEAST FOR 4 MILES WHERE IT ENTERED INTO GOLDEN
VALLEY NORTH DAKOTA AROUND 511 PM MDT. A FULL REPORT WILL
BE ON OUR WEBSITE IN THE NEAR FUTURE.
WWW.WEATHER.GOV/GLASGOW
&&
FRANSENSpecial weather statement, Jul 1, 4:05 PM MDT, 9 minutes before
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</html>The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 6:00 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 42 min |
| Jun 30, 6:19 PM MDT | Severe Thunderstorm Warning | GGW | McCone, Richland, Roosevelt | 56 min |
| Jun 30, 7:11 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland | 46 min |
| Jul 1, 2:21 PM MDT | Special Weather Statement | GGW | Valley | 54 min |
| Jul 1, 2:39 PM MDT | Special Weather Statement | GGW | Phillips | 66 min |
| Jul 1, 2:58 PM MDT | Special Weather Statement | GGW | Valley | 62 min |
| Jul 1, 3:06 PM MDT | Special Weather Statement | GGW | Roosevelt | 54 min |
| Jul 1, 3:09 PM MDT | Severe Thunderstorm Warning | GGW | McCone, Roosevelt, Valley | 66 min |
| Jul 1, 3:20 PM MDT | Special Weather Statement | GGW | 55 min | |
| Jul 1, 3:48 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum | 57 min |
| Jul 1, 4:05 PM MDT | Special Weather Statement | GGW | McCone | 55 min |
| Jul 1, 4:20 PM MDT | Special Weather Statement | GGW | McCone | 55 min |
| Jul 1, 4:32 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum | 43 min |
| Jul 1, 4:47 PM MDT | Special Weather Statement | GGW | Daniels | 58 min |
| Jul 1, 4:57 PM MDT | Special Weather Statement | GGW | Dawson, McCone, Prairie | 63 min |
| Jul 1, 5:24 PM MDT | Special Weather Statement | GGW | Roosevelt | 66 min |
| Jul 1, 5:27 PM MDT | Special Weather Statement | GGW | Valley | 63 min |
| Jul 1, 5:48 PM MDT | Special Weather Statement | GGW | Phillips | 57 min |
| Jul 1, 5:58 PM MDT | Special Weather Statement | GGW | Dawson | 62 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2015Every severe thunderstorm warning in 2015
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.