Alert archive / Montana / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 113, NWS Glasgow, MT

June 28, 2005Garfield County, McCone County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jun 28, 2005, 6:46 PM MDT for Garfield County, McCone County, Montana. It was in force for 59 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 28, 2005, 6:46 PM MDT (00:46 UTC)
Expired: Jun 28, 2005, 7:45 PM MDT
In force: 59 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), 93 km from the middle of the area, began a volume at 00:47 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.

What was reported inside it

Time	Report	Where	Remark
Jun 28, 7:23 PM MDT	TSTM WND GST 61	Jordan, MT	MEASURED AT JORDAN ASOS
Jun 28, 7:30 PM MDT	TSTM WND DMG	Jordan, MT	A HOUSE TRAILER BLEW OVER IN THE TOWN OF JORDAN.
Jun 28, 7:55 PM MDT	TSTM WND DMG	4 Nne Van Norman, MT	50-60FT TALL COTTONWOOD TREES DOWNED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 37 minutes after it went out.

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 28, 1:30 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 0.8 hours before the alert went out and 96 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1040 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1086 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS55 KGGW 290046
SVRGGW
MTC033-055-290145-
/O.NEW.KGGW.SV.W.0113.050629T0046Z-050629T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GLASGOW MT
646 PM MDT TUE JUN 28 2005

THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GARFIELD COUNTY IN NORTHEAST MONTANA.
  SOUTHWESTERN MCCONE COUNTY IN NORTHEAST MONTANA.

* UNTIL 745 PM MDT

* AT 642 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 13 MILES NORTH OF BRUSETT
  TO 22 MILES SOUTHEAST OF EDWARDS...AND MOVING EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  JORDAN BY 705 PM MDT
  HELL CREEK RECREATION AREA BY 710 PM MDT
  COHAGEN BY 715 PM MDT
  HILLSIDE BY 725 PM MDT

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.

LAT...LON 4765 10759 4687 10733 4685 10610 4688 10611
      4769 10628 4766 10727 4766 10737 4764 10742
      4762 10749

$$

JAZ

WEATHER.GOV/GLASGOW

1 follow-up statement

000 
WWUS55 KGGW 290112
SVSGGW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GLASGOW MT
712 PM MDT TUE JUN 28 2005

MTC033-055-290145-
/O.CON.KGGW.SV.W.0113.000000T0000Z-050629T0145Z/
GARFIELD-MCCONE-
712 PM MDT TUE JUN 28 2005

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR GARFIELD AND
SOUTHWESTERN MCCONE COUNTIES UNTIL 745 PM MDT...

AT 709 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF
BALL SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 9 MILES WEST OF HELL
CREEK RECREATION AREA TO 14 MILES SOUTHWEST OF COHAGEN...MOVING EAST
AT 25 MPH.

SEVERE THUNDERSTORMS WILL BE...
   NEAR HELL CREEK RECREATION AREA BY 725 PM MDT
   NEAR COHAGEN BY 730 PM MDT
   NEAR HILLSIDE BY 745 PM MDT

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM MDT TUESDAY EVENING
FOR NORTHEAST MONTANA.

LAT...LON 4765 10759 4687 10733 4685 10610 4688 10611
      4769 10628 4766 10727 4766 10737 4764 10742
      4762 10749

$$

JAZ

WEATHER.GOV/GLASGOW

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 Jun 28, 2:27 PM MDT, 4 hours 19 minutes earlier.

Area forecast discussion, Jun 28, 2:27 PM MDT, 4 hours 19 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
227 PM MDT TUE JUN 28 2005

.SHORT TERM...FOR NORTHEAST MONTANA...TONIGHT THROUGH FRIDAY...
STRONGER THUNDERSTORMS BEGINNING TO DEVELOP ACROSS THE REGION THIS
AFTERNOON WITH TORNADO WATCH IN EFFECT UNTIL 8PM. MUCH OF THE AREA
HAS BEEN UNDER LOW CLOUDS FOR MUCH OF THE DAY AND MORE STABLE AT THE
SURFACE. ALONG THE SOUTHERN AND WESTERN BORDER OF CWA WHERE MORE SUN
HAS BEEN...AIRMASS IS MORE UNSTABLE ALLOWING SEVERE STORMS TO FORM.

STORMS DEVELOPING AHEAD OF UPPER TROF ROTATING ACROSS PACIFIC
NORTHWEST AND ALONG AN INVERTED TROF ACROSS CENTRAL MONTANA. BOTH
THE UPPER AND SURFACE TROF WILL MOVE ACROSS THE STATE OVERNIGHT AND
INTO NORTH DAKOTA IN THE MORNING. MOST OF THE STORMS WILL BE AHEAD
OF THE TROFS.

SUBSIDENCE AND DRIER AIR COME BACK TO THE REGION BY WEDNESDAY
AFTERNOON WITH WESTERLY FLOW AND WEAK RIDGING. THIS SHOULD BRING A
BREAK IN THE RECENT THUNDERSTORM ACTIVITY AND ALLOW THE AREA TO DRY
OUT SLIGHTLY. EBERT

.LONG TERM...THURSDAY THROUGH TUESDAY...
NO CHANGES TO THE EXTENDED FORECAST TODAY. EVERYTHING LOOKING RIGHT
ON TRACK. LATEST GFS HINTING THAT A RIDGE TO PERHAPS WORK IN BY THE
END OF THE PERIOD FOR DRIER AND WARMER FORECAST...BUT NOT ENOUGH TO
SUPPORT A CHANGE TO GOING GRIDS FOR NOW. JAZ

...PREVIOUS DISCUSSION...
MODELS ARE IN AGREEMENT IN THE EARLY PART OF THE EXTENDED. THEY DO
DEVELOP TIMING DIFFERENCES WITH AN UPPER TROUGH EXPECTED TO MOVE
ACROSS MONTANA OVER THE WEEKEND WITH THE GFS AND DGEX FASTER THAN
THE ECMWF. SHORTWAVE RIDGE MOVES THROUGH EASTERN MONTANA THU NIGHT
AND FRIDAY MORNING. THEN...SOUTHWEST FLOW ALOFT DEVELOPS ON FRIDAY
AHEAD OF THE UPPER TROUGH. WITH FREQUENT SHORTWAVES EXPECTED AHEAD
OF AND DURING THE PASSAGE OF THE UPPER TROUGH...WILL BROADBRUSH A
SLIGHT CHANCE OF THUNDERSTORMS THROUGH MOST OF THE WEEKEND.
GFS/DGEX/CANADIAN BRING THE UPPER TROUGH THROUGH MONTANA ON SUNDAY
AND RETURN TO SOUTHWEST ALOFT FOR MONDAY AND TUESDAY WHILE THE ECMWF
WAITS UNTIL MONDAY TO BRING THE UPPER TROUGH ACROSS THE STATE.
EITHER WAY...THE WEATHER LOOKS UNSETTLED. WILL MAINTAIN A SLIGHT
CHANCE OF THUNDERSTORMS FOR NOW.

&&

.AVIATION...WITH ON AND OFF SHOWERS AND THUNDERSTORMS EXPECTED INTO
WEDNESDAY...WILL SEE A WIDE RANGE OF CEILINGS AND VISIBILITIES AT
THE TAF SITES. CONDITIONS WILL BE GENERALLY VFR WHEN THERE IS NO
PRECIPITATION AND FALL TO AS LOW AS IFR WHEN A SHOWER OR
THUNDERSTORM PASSES. ERRATIC AND GUSTY WINDS ARE POSSIBLE WITH ANY
STORMS THAT PASS OVER A TAF SITE TODAY AND TONIGHT.

&&

.GLASGOW WATCHES/WARNINGS/ADVISORIES...FLASH FLOOD WATCH UNTIL
MIDNIGHT MDT FOR ALL OF NORTHEAST MONTANA.

&&

WEATHER.GOV/GLASGOW

Hazardous weather outlook, Jun 28, 10:03 AM MDT, 8 hours 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GLASGOW MT
1003 AM MDT TUE JUN 28 2005

MTZ016>027-059>062-291615-
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-
1003 AM MDT TUE JUN 28 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
MONTANA.

.DAY ONE...TODAY AND TONIGHT

A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF NORTHEAST MONTANA
THROUGH THIS EVENING. REFER TO WGUS65 KGGW OR GTFFFAGGW FOR MORE
INFORMATION.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER EXPECTED AT THIS TIME.

.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 28, 1:53 PM MDT, 4 hours 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
153 PM MDT TUE JUN 28 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     TORNADO          5 W WINNETT             47.00N 108.46W
06/28/2005                   PETROLEUM          MT   LAW ENFORCEMENT

            TORNADO NEAR STATE HWY 200 AT MILE POST 131.

0150 PM     HAIL             WINNETT                 47.00N 108.35W
06/28/2005  1.00 INCH        PETROLEUM          MT   LAW ENFORCEMENT

&&

TLSJR

Local storm report, Jun 28, 4:55 PM MDT, 1 hour 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
455 PM MDT TUE JUN 28 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0451 PM     TSTM WND GST     12 N WINNETT            47.18N 108.35W
06/28/2005  60 MPH           PETROLEUM          MT   TRAINED SPOTTER

&&

TLSJR

Local storm report, Jun 28, 5:34 PM MDT, 1 hour 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
534 PM MDT TUE JUN 28 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0510 PM     HAIL             WINNETT                 47.00N 108.35W
06/28/2005  0.88 INCH        PETROLEUM          MT   LAW ENFORCEMENT

            NUMEROUS HAILSTONES.

&&

TFJ

Local storm report, Jun 28, 6:11 PM MDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
611 PM MDT TUE JUN 28 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     HAIL             N WHITEWATER            48.76N 107.63W
06/28/2005  1.00 INCH        PHILLIPS           MT   PUBLIC

0555 PM     HAIL             5 ESE U L BEND          47.46N 107.78W
06/28/2005  1.00 INCH        GARFIELD           MT   TRAINED SPOTTER

0600 PM     HAIL             24 W BRUSETT            47.42N 107.78W
06/28/2005  0.88 INCH        GARFIELD           MT   PUBLIC

0610 PM     HAIL             13 WNW BRUSETT          47.50N 107.52W
06/28/2005  0.75 INCH        GARFIELD           MT   PUBLIC

&&

TFJ

Local storm report, Jun 28, 6:36 PM MDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
636 PM MDT TUE JUN 28 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0625 PM     HAIL             1 E WHITEWATER          48.76N 107.61W
06/28/2005  1.75 INCH        PHILLIPS           MT   TRAINED SPOTTER

&&

JJZ

Local storm report, Jun 28, 6:46 PM MDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
646 PM MDT TUE JUN 28 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0630 PM     HAIL             6 S MALTA               48.27N 107.87W
06/28/2005  0.75 INCH        PHILLIPS           MT   PUBLIC

&&

JJZ

The office that day

Everything else NWS Glasgow, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 6:11 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Phillips	64 min
Jun 28, 6:36 PM MDT	Flash Flood Warning	GGW	Phillips	3 hr
Jun 28, 6:47 PM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	21 min
Jun 28, 6:58 PM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	62 min
Jun 28, 7:39 PM MDT	Flash Flood Warning	GGW	Garfield	6 hr
Jun 28, 7:42 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie, Valley	63 min
Jun 28, 8:22 PM MDT	Severe Thunderstorm Warning	GGW	Prairie	53 min
Jun 28, 8:29 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone, Prairie, Roosevelt, Valley	61 min
Jun 28, 8:56 PM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	33 min
Jun 28, 8:59 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone, Prairie, Roosevelt, Valley	61 min
Jun 28, 9:15 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie, Wibaux	46 min
Jun 28, 9:31 PM MDT	Flash Flood Warning	GGW	Phillips, Valley	3 hr
Jun 28, 9:40 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Wibaux	65 min
Jun 28, 9:50 PM MDT	Flash Flood Warning	GGW	Garfield, McCone, Valley	3 hr
Jun 28, 10:09 PM MDT	Flash Flood Warning	GGW	Dawson, Wibaux	3 hr
Jun 28, 10:37 PM MDT	Flash Flood Warning	GGW	Daniels, Garfield, McCone, Phillips, Valley	3 hr

Nearby

Severe Thunderstorm Warnings in Montana, 2005 Every severe thunderstorm warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.