Alert archive / Montana / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 49, NWS Glasgow, MT
NWS Glasgow, MT issued this severe thunderstorm warning at Jun 16, 2007, 10:15 PM MDT for Garfield County, McCone County, Montana. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 16, 2007, 10:15 PM MDT (04:15 UTC)
- Expired
- Jun 16, 2007, 11:15 PM MDT
- In force
- 60 min
- Issued by
- NWS Glasgow, MT
- Area
- Counties, with a storm outline in the text
Counties Garfield County, MT, McCone County, MT
The radar
The Glasgow radar (KGGW), 54 km from the middle of the area, began a volume at 04:15 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 16, 4:10 PM MDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 4.3 hours before the alert went out and 55 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
- 205 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1742 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 388 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS55 KGGW 170414
SVRGGW
MTC033-055-170515-
/O.NEW.KGGW.SV.W.0049.070617T0415Z-070617T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GLASGOW MT
1015 PM MDT SAT JUN 16 2007
THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN GARFIELD COUNTY IN NORTHEAST MONTANA...
NORTHWESTERN MCCONE COUNTY IN NORTHEAST MONTANA...
* UNTIL 1115 PM MDT.
* AT 1010 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 29 MILES NORTHWEST OF
NELSON CREEK RECREATION A TO 16 MILES NORTHWEST OF NELSON CREEK
RECREATION A TO 22 MILES WEST OF NELSON CREEK RECREATION A...OR
ALONG A LINE EXTENDING FROM 19 MILES SOUTH OF GLASGOW TO 34 MILES
SOUTH OF GLASGOW TO 16 MILES NORTHEAST OF JORDAN...AND WERE MOVING
EAST AT 20 MPH.
* LOCATIONS IN THE WARNING INCLUDE...
NELSON CREEK RECREATION A
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT SUNDAY MORNING FOR
NORTHEAST MONTANA.
LAT...LON 4792 10651 4774 10658 4740 10678 4741 10600
4772 10587 4798 10590 4804 10631
$$
VALONE
WEATHER.GOV/GLASGOW2 follow-up statements
000
WWUS55 KGGW 170448
SVSGGW
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GLASGOW MT
1048 PM MDT SAT JUN 16 2007
MTC033-055-170515-
/O.CON.KGGW.SV.W.0049.000000T0000Z-070617T0515Z/
MCCONE-GARFIELD-
1048 PM MDT SAT JUN 16 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM MDT
FOR NORTHEASTERN GARFIELD AND WESTERN MCCONE COUNTIES...
AT 1044 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 25 MILES NORTH OF NELSON
CREEK RECREATION A TO 6 MILES NORTHEAST OF NELSON CREEK RECREATION A
TO 11 MILES SOUTHWEST OF NELSON CREEK RECREATION A...OR ALONG A LINE
EXTENDING FROM 24 MILES SOUTHWEST OF WOLF POINT TO 28 MILES NORTHWEST
OF CIRCLE TO 27 MILES EAST OF JORDAN...AND MOVING EAST AT 20 MPH.
THE LINE OF SEVERE THUNDERSTORMS WILL REMAIN OVER RURAL AREAS OF
GARFIELD AND MCCONE COUNTIES.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT SUNDAY MORNING FOR
NORTHEAST MONTANA.
LAT...LON 4799 10622 4772 10631 4741 10657 4741 10600
4772 10587 4798 10590
$$
VALONE
WEATHER.GOV/GLASGOW000
WWUS55 KGGW 170513
SVSGGW
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GLASGOW MT
1111 PM MDT SAT JUN 16 2007
MTC033-055-170521-
/O.EXP.KGGW.SV.W.0049.000000T0000Z-070617T0515Z/
MCCONE-GARFIELD-
1111 PM MDT SAT JUN 16 2007
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GARFIELD AND
WESTERN MCCONE COUNTIES EXPIRES AT 1115 PM MDT...
AT 1111 PM MDT...THUNDERSTORMS HAVE WEAKENED AND MOVED OUT OF
WESTERN MCCONE AND NORTHEASTERN GARFIELD COUNTIES SO THE WARNING WAS
ALLOWED TO EXPIRE.
AT 1109 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
LEADING EDGE OF THUNDERSTORMS
ALONG A LINE EXTENDING FROM 19 MILES WEST OF WOLF POINT TO 13 MILES
NORTHWEST OF CIRCLE TO 25 MILES WEST OF CIRCLE...MOVING TO THE EAST
AT 20 MPH. THE THUNDERSTORMS HAVE WEAKENED AND WERE NO LONGER
CONSIDERED SEVERE AND HAVE MOVED OUT OF THE AREA SO THE WARNING WAS
ALLOWED TO EXPIRE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT SUNDAY MORNING FOR
NORTHEAST MONTANA.
LAT...LON 4799 10622 4772 10631 4741 10657 4741 10600
4772 10587 4798 10590
$$
VALONE
WEATHER.GOV/GLASGOWWhat 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 Jun 16, 3:15 PM MDT, 7 hours earlier.
Area forecast discussion, Jun 16, 3:15 PM MDT, 7 hours before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GLASGOW MT 315 PM MDT SAT JUN 16 2007 .SHORT TERM...FOR NORTHEAST MONTANA...TONIGHT THROUGH MONDAY... TORNADO WATCH ALREADY ISSUED FOR CENTRAL MONTANA...INCLUDING WESTERN TWO COUNTIES OF CWA. SINGLE VERY STRONG TO SEVERE STORM MOVING ACROSS NORTHERN BLAINE COUNTY...WITH INDICATIONS OF HAIL AND VERY HEAVY RAINFALL. ADDITIONAL STORMS DEVELOPING WEST OF GREAT FALLS IN SOUTHWEST FLOW AHEAD OF STRONG UPPER TROF MOVING THROUGH THE PACIFIC NORTHWEST. THESE STORMS WILL BE THE MAIN CONCERN FOR THE EVENING AS THEY MOVE INTO MOISTURE RICH UNSTABLE AIRMASS OVER EAST CENTRAL MONTANA. UPPER TROF MOVES ACROSS MONTANA ON SUNDAY WITH CONTINUED POSSIBILITY OF RAIN SHOWERS OR THUNDERSTORMS. ALSO EXPECT FAIRLY STRONG WINDS WITH LAKE WIND ADVISORY LIKELY. WEST TO NORTHWEST FLOW WITH EMBEDDED WEAK SHORTWAVES ON MONDAY TO CONTINUE POSSIBILITY OF WET WEATHER...MAINLY ACROSS THE NORTHERN ZONES. EBERT .LONG TERM...MONDAY NIGHT THROUGH SATURDAY... THE EXTENDED MODELS BEGIN ON THE SAME PAGE AND CONTINUE THROUGHOUT THE EXTENDED PERIOD. ALL THE BIG WAVES REMAIN IN SYNC WITH RESPECT TO TIME. THE LATEST HPC EXTENDED FORECAST DISCUSSION DOES NOT RECOMMEND AGAINST ANY MODEL. IN FACT THEIR FORECAST IS A BLEND OF THE GFS...ECMWF AND THE CANADIAN GLOBAL MODELS. SO THERE IS GOOD CONFIDENCE WITH THE EXTENDED SOLUTIONS. THE BEGINNING PERIOD WILL SEE AN UPPER SHORTWAVE SKIP ACROSS WESTERN CANADA WHICH WILL FLATTEN THE UPPER FLOW. BY TUESDAY NIGHT THE SHORTWAVE WILL HAVE MOVED EAST OF THE REGION AND AN UPPER RIDGE WILL BEGIN TO BUILD FROM THE WEST. THIS RIDGE WILL DOMINATE THE WEATHER UNTIL THE BEGINNING OF THE WEEKEND WHEN AN UPPER TROUGH MOVES OVER THE NORTHWEST COAST DOWN FROM THE GULF OF ALASKA. THE UPPER LOW WILL THEN MOVE INTO WESTERN CANADA DURING THE WEEKEND. THE INHERITED GRIDS HAVE LOW POPS WITH SLIGHT CHANCE OR LESS THROUGHOUT...WHICH FITS THE EXPECTED PATTERN WELL. THEREFORE MADE FEW CHANGES. SEASONAL TEMPERATURES SHOULD RISE TO JUST ABOVE AVERAGE BY MID WEEK. SCT PREVIOUS DISCUSSION... EXTENDED FORECAST MODELS HAVE COME INTO DECENT AGREEMENT...THUS HIGHER CONFIDENCE. MONDAY NIGHT INTO TUESDAY NIGHT WILL REMAIN SOMEWHAT UNSETTLED AS THE JET REMAINS OVERHEAD ON THE BACKSIDE OF THE EXITING TROUGH. TUESDAY NIGHT THROUGH THURSDAY MODELS ARE INDICATING UPPER LEVEL RIDGING BUILDING IN. THIS WILL MAKE FOR WARMING AND DRYING CONDITIONS...SO TRENDED FORECAST IN THIS DIRECTION. FRIDAY AND SATURDAY... DECENT MODEL CONSENSUS OF UPPER RIDGE AXIS CROSSING NORTHEASTERN MONTANA DURING THE DAY FRIDAY. THEREFORE...IT IS LIKELY THAT MOST OF THE AREA WILL WARM WELL INTO THE 80S. OVERALL THE VERTICAL TEMPERATURE PROFILE APPEARS TO BE STABLE TO PRODUCE SHOWERS OR THUNDERSTORMS...SO POPS WERE LOWERED FOR FRIDAY AND FRIDAY NIGHT. SATURDAY...THE UPPER RIDGE MOVES TO THE UPPER MIDWEST...AND AN UPPER LOW OVER THE GULF OF ALASKA DROPS TO JUST OFF THE CENTRAL COAST OF BRITISH COLUMBIA. THIS PUTS THE NORTHERN HIGH PLAINS UNDER SOUTHWEST FLOW ALOFT...WHICH SUPPORTS THE POTENTIAL FOR ISOLATED LATE AFTERNOON AND EVENING THUNDERSTORMS. TEMPERATURES FOR SATURDAY APPEAR TO STAY JUST AS WARM AS FRIDAY. AJZ && .AVIATION... LATE AFTERNOON AND TONIGHT CAN EXPECT NUMEROUS STRONG THUNDERSTORMS. THE STORM PREDICTION CENTER HAS PLACED THE ENTIRE LOCAL FORECAST AREA UNDER RISK FOR SEVERE THUNDERSTORMS. WITH ANY OF THESE SEVERE STORMS CAN EXPECT LOCAL HEAVY RAIN...LARGE HAIL AND DAMAGING WIND GUSTS OF OVER 50 KNOTS. THESE STORMS MAY ALSO BRIEFLY REDUCE VISIBILITY TO IFR...BELOW 3 MILES AT TIMES...AND CEILINGS TO BELOW 1K FT. LATE TONIGHT AND EARLY MORNING THE STORMS SHOULD TURN MOSTLY TO RAIN. THE HEAVIEST RAINS SHOULD MOVE NORTHEAST INTO CANADA BY SUNDAY MORNING. HOWEVER WEAKER INSTABILITY WILL CONTINUE INTO SUNDAY SO THERE REMAINS A CHANCE FOR THUNDERSTORM ACTIVITY THROUGH THE AFTERNOON. EAST WINDS WILL INCREASE TO 15 TO 20 KNOTS TONIGHT THEN BACK TO THE NORTHWEST BY NOON SUNDAY AND INCREASE TO 20 TO 30 KNOTS. SCT && .GLASGOW WATCHES/WARNINGS/ADVISORIES...NONE. && WEATHER.GOV/GLASGOW
Hazardous weather outlook, Jun 16, 3:57 AM MDT, 18 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 357 AM MDT SAT JUN 16 2007 MTZ016>027-059>062-171000- 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- 357 AM MDT SAT JUN 16 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND OVERNIGHT TONIGHT. THESE STORMS HAVE THE POTENTIAL TO BE SEVERE WITH LARGE HAIL AND DAMAGING WINDS. PLEASE CONTINUE TO MONITOR THE LATEST FORECASTS FOR DETAILS ON THIS DEVELOPING STORM SYSTEM. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SUNDAY LOOKS TO BE A WINDY DAY...WHICH MAY PROMPT THE ISSUANCE OF A LAKE WIND ADVISORY. PLEASE CONTINUE TO MONITOR THE LATEST FORECASTS FOR DETAILS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Local storm report, Jun 16, 9:28 PM MDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
928 PM MDT SAT JUN 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0925 PM HAIL 47 SW GLASGOW 47.71N 107.35W
06/16/2007 E1.00 INCH VALLEY MT PUBLIC
HAIL PENNY TO QUARTER SIZE. WINDS AT 40-50 MPH.
&&
JIMBLocal storm report, Jun 16, 9:38 PM MDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
938 PM MDT SAT JUN 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM TSTM WND GST 1 N SIDNEY 47.72N 104.18W
06/16/2007 E60 MPH RICHLAND MT TRAINED SPOTTER
WINDS ESTIMATED 50-60 MPH. HAIL UP TO HALF INCH.
&&
MATTMLocal storm report, Jun 16, 9:42 PM MDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
942 PM MDT SAT JUN 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM HAIL 5 NE SIDNEY 47.77N 104.09W
06/16/2007 E0.75 INCH RICHLAND MT TRAINED SPOTTER
HAIL MARBLE TO PENNY SIZE. WINDS ESTIMATED AT 60 MPH.
&&
MATTMLocal storm report, Jun 16, 9:43 PM MDT, 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
943 PM MDT SAT JUN 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0935 PM HAIL 5 NE SIDNEY 47.77N 104.09W
06/16/2007 E0.75 INCH RICHLAND MT TRAINED SPOTTER
HAIL MARBLE TO PENNY SIZE. WINDS ESTIMATED AT 60 MPH.
&&
MATTMLocal storm report, Jun 16, 9:47 PM MDT, 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
947 PM MDT SAT JUN 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0942 PM HAIL SIDNEY 47.72N 104.16W
06/16/2007 E1.00 INCH RICHLAND MT TRAINED SPOTTER
COVERING THE GROUND
&&
MZLocal storm report, Jun 16, 9:52 PM MDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
952 PM MDT SAT JUN 16 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0533 PM FUNNEL CLOUD VANDALIA 48.35N 106.91W
06/16/2007 VALLEY MT PUBLIC
TWO FISHERMAN REPORTED A FUNNEL CLOUD NEAR THE VANDALIA
DAM.
0533 PM FUNNEL CLOUD VANDALIA 48.35N 106.91W
06/16/2007 VALLEY MT PUBLIC
TWO FISHERMAN REPORTED A FUNNEL CLOUD NEAR THE VANDALIA
DAM.
&&
MATTMThe office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 6:14 PM MDT | Tornado Warning | GGW | Garfield, McCone, Roosevelt, Valley | 61 min |
| Jun 16, 6:20 PM MDT | Flash Flood Warning | GGW | Garfield, McCone, Roosevelt, Valley | 3 hr |
| Jun 16, 7:03 PM MDT | Tornado Warning | GGW | Dawson, McCone, Richland, Roosevelt | 57 min |
| Jun 16, 7:43 PM MDT | Flash Flood Warning | GGW | Dawson, McCone, Richland, Roosevelt | 3 hr |
| Jun 16, 7:47 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 58 min |
| Jun 16, 7:56 PM MDT | Tornado Warning | GGW | Dawson, McCone, Richland | 64 min |
| Jun 16, 8:58 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 10 min |
| Jun 16, 9:03 PM MDT | Severe Thunderstorm Warning | GGW | Phillips, Valley | 57 min |
| Jun 16, 9:08 PM MDT | Flash Flood Warning | GGW | Valley | 3 hr |
| Jun 16, 9:14 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 46 min |
| Jun 16, 9:25 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 65 min |
| Jun 16, 10:27 PM MDT | Flash Flood Warning | GGW | Garfield, McCone, Roosevelt, Valley | 6 hr |
| Jun 16, 10:40 PM MDT | Flash Flood Warning | GGW | Dawson, McCone, Richland, Roosevelt | 6 hr |
| Jun 16, 11:20 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone | 25 min |
| Jun 16, 11:45 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone | 47 min |
| Jun 17, 12:09 AM MDT | Flash Flood Warning | GGW | Valley | 4 hr |
| Jun 17, 12:31 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland | 44 min |
| Jun 17, 1:17 AM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 43 min |
| Jun 17, 1:27 AM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum | 48 min |
| Jun 17, 2:11 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 64 min |
| Jun 17, 2:26 AM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone | 64 min |
| Jun 17, 3:04 AM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Prairie | 56 min |
| Jun 17, 3:15 AM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Phillips, Valley | 18 hr |
| Jun 17, 3:26 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland | 64 min |
| Jun 17, 3:58 AM MDT | Severe Thunderstorm Warning | GGW | Prairie | 47 min |
| Jun 17, 4:25 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland | 47 min |
| Jun 17, 4:40 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie | 65 min |
| Jun 17, 5:09 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie | 29 min |
| Jun 17, 5:29 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland | 61 min |
| Jun 17, 6:09 AM MDT | Severe Thunderstorm Warning | GGW | Richland | 35 min |
Nearby
Severe Thunderstorm Warnings in Montana, 2007Every severe thunderstorm warning in 2007
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.