Alert archive / Montana / Special Weather Statements in 2012
Special Weather Statement, NWS Glasgow, MT
NWS Glasgow, MT issued this special weather statement at Aug 2, 2012, 3:03 PM MDT for Daniels County, Montana. It was in force for 57 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
- Aug 2, 2012, 3:03 PM MDT (21:03 UTC)
- Expired
- Aug 2, 2012, 4:00 PM MDT
- In force
- 57 min
- Issued by
- NWS Glasgow, MT
County Daniels County, MT
The radar
The Glasgow radar (KGGW), 78 km from the middle of the area, began a volume at 21:03 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, 9.1 hours before the alert went out and 76 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
- 227 J/kg
- Mixed-layer CIN
- -196 J/kg
- Mixed-layer LCL
- 1541 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 2, 11:42 AM MDT, 3 hours 21 minutes earlier.
Area forecast discussion, Aug 2, 11:42 AM MDT, 3 hours 21 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE GLASGOW MT 1142 AM MDT THU AUG 2 2012 ...UPDATED AVIATION DISCUSSION... .SHORT TERM...FOR NORTHEAST MONTANA...TODAY THROUGH SATURDAY... UPDATED THE FORECAST TO RAISE POPS FOR THIS AFTERNOON ACROSS OUR EAST. FRONTAL ZONE WILL MOVE ACROSS THE CWA THIS AFTERNOON AND EVENING. EXPECT POSSIBLE STRONG TO SEVERE THUNDERSTORMS ACROSS THE YELLOWSTONE VALLEY SO INCREASE THE POPS AND ADDED THE SEVERE WORDING TO THE ZONES. RSMITH PREVIOUS DISCUSSION...SYNOPTIC SET UP... THE WESTERN US HEAT DOME HAS PRESSED UP NORTH TO ABOUT SOUTHERN MONTANA AND IDAHO TRACING BACK TO NORTHERN CALIFORNIA. TO THE NORTH A CLOSED LOW IS BUTTING HEADS WITH THE HEAT DOME AND DRAGGING SOME COOLER AIR ONTO THE SOUTHERN SECTIONS OF THE BRITISH COLUMBIA/ ALBERTA BORDER. BEHIND THE CLOSED LOW A WEAK RIDGE HAS SETUP OFF THE COAST OF THE PACIFIC NORTHWEST AND BRITISH COLUMBIA. NEAR THE SURFACE A LEE TROUGH HAS SITUATED ITSELF OVER FAR EASTERN MONTANA WHILE A COLD FRONT IS DEVELOPING OVER SOUTHERN ALBERTA AS THE CLOSED LOW ALOFT SPINS UP A CYCLONIC LOW ON THE CANADIAN PLAINS. TODAY... A RAPID TRANSITION IN HIGH IMPACT WEATHER FEATURES IS ANTICIPATED ACROSS THE CWA LEADING TO FIRE WEATHER CONCERNS AND SOME ISOLATED SEVERE WEATHER. THE LEE TROUGH ACROSS THE FAR EAST IS ANTICIPATED TO TAP INTO SOME MOISTER DEW POINTS ACROSS THE EASTERN SIDE OF THE BOUNDARY AND CREATE SHOWERS AND THUNDERSTORMS DURING THE AFTERNOON HOURS SOME OF WHICH COULD BE SEVERE DUE TO A STRONG DOWN BURST WINDS. SYNOPTIC WINDS WILL BE LIGHT ACROSS THIS AREA BUT INVERTED V PROFILE DURING THE AFTERNOON HOURS POINTS TOWARD STRONG DOWN BURST WINDS. PRECIPITABLE WATER CONTENT WITH THESE STORMS LOOKS TO BE ABOVE 1 INCH AND THEREFORE ENOUGH QPF SHOULD BE PUT DOWN TO HELP SMOTHER LIGHTNING STRIKES ESPECIALLY ALONG THE YELLOWSTONE VALLEY AREA. BEHIND THE SURFACE TROUGH THE HIGHEST CONCERNS FOR FIRE WEATHER KICK IN AS A DRY SLOT GETS PULLED INTO LOW DEVELOPING TO THE NORTH. ORIGIN FOR THIS AIR IS OVER THE MONTANA/IDAHO/WYOMING TRIPLE POINT WITH DEW POINTS IN THE 20S AND 30S. WINDS WILL BE VERY LIGHT IN THIS DRY SLOT... BUT DRYING AND DOWN SLOPE QUALITIES TO THIS WINDS WILL ONLY SLOWLY ADVECT LOWER RH'S INTO THE REGION AND EASILY HIT RED FLAG CONDITIONS ACROSS THE BREAKS AND PETROLEUM COUNTY. THE FINAL PROBLEM WITH FIRE WEATHER IS THE COLD FRONT ITSELF MOVING THROUGH. A WIND SHIFT FROM THE SOUTHEAST TO NORTHWEST WITH INCREASED SPEEDS FROM LIGHT TO 15 TO 25 MPH IS ANTICIPATED BEHIND THE FRONT ITSELF. WHILE LOWER TEMPERATURES AND INCREASED RH'S WILL ALSO BE ACCOMPANYING THIS FRONT... THE TIMING OF THE FRONT ITSELF IS UNCERTAIN. CURRENTLY FEEL THAT THE FRONT WILL BEGIN MOVING THROUGH THE CWA BETWEEN NOON AND 3PM AND WILL PROBABLY NOT MAKE ITS WAY TOTALLY ACROSS THE CWA UNTIL MIDNIGHT. HOWEVER... STRENGTH OF THE FRONT COULD BE UNDERESTIMATED AND THIS COULD DRIVE IT ACROSS THE CWA FASTER THAN ANTICIPATED... CATCHING ANY OCCURRING WILDFIRES OR PRESCRIBED FIRES OFF GUARD. THEREFORE HAVE UPGRADED TO A RED FLAG ACROSS THE PHILLIPS AND VALLEY COUNTY AS WELL TO ACCOUNT FOR THIS UNCERTAINTY. TONIGHT THROUGH FRIDAY NIGHT... CENTER OF THE COLD CLOSED LOW IS ANTICIPATED TO DROP SOUTH INTO NORTHEASTERN MONTANA FRIDAY. THIS WILL LOWER TEMPERATURES SIGNIFICANTLY. 850MB TEMPS DROP INTO THE SINGLE DIGITS *C WHICH WILL TRANSLATE TO HIGHS BELOW NORMAL IN THE 70S. RAIN SHOWERS AND ISOLATED THUNDER COULD ALSO ACCOMPANY THE LOW WITH QPF TOTALS AROUND A TENTH OF AN INCH BRINGING A NICE LIGHT WETTING RAIN TO SOME AREAS. SATURDAY... THE TROUGH MOVES OFF INTO THE DAKOTAS AND THE RIDGE OFF THE PACIFIC NORTHWEST COAST MOVES INTO THE WESTERN US RAPIDLY GAINING STRENGTH. THIS WILL BEGIN A RATHER FAST WARMING TREND THAT WILL HAVE LOCAL SURFACE TEMPS BACK TO NORMAL ON SATURDAY AND ABOVE NORMAL AGAIN LATE IN THE WEEKEND. CONDITIONS SHOULD ALSO QUICKLY BECOME DRY AS STABLE HIGH PRESSURE SETTLES IN NEAR THE SURFACE. GAH .LONG TERM...SATURDAY NIGHT THROUGH THURSDAY... THE EXTENDED FORECAST BEGINS WITH NORTHEAST MONTANA IN NORTHWEST FLOW WITH A LARGE UPPER LEVEL RIDGE TO THE SOUTH. THIS WILL BRING 90S BACK TO THE REGION UNTIL THE RIDGE BEGINS TO FLATTEN OUT TOWARDS THE MIDDLE OF NEXT WEEK. THEN TEMPERATURES WILL BE AROUND NORMALS WITH HIGHS IN THE UPPER 80S. DRY CONDITIONS WILL CONTINUE THROUGH TUESDAY...AND EVEN THEN THE BEST CHANCES WILL BE WEST OF AND SOUTH WITH BEST UPPER SUPPORT FOR CONVECTION FORECAST OVER THOSE AREAS BY THE MODELS. AFTER TUESDAY KEPT LOW POPS IN SINCE THE UPPER FLOW WILL BE WESTERLY WITH SOME WEAK DISTURBANCES MOVING THROUGH... ALONG WITH A SURFACE TROUGH IN THE REGION SHOULD HAVE AN ISOLATED THUNDERSTORM OR TWO POSSIBLE DAILY. PROTON && .AVIATION... 02/18Z...THUNDERSTORMS HAVE ALREADY DEVELOPED WILL AFFECT MAINLY KSDY AND KGDV THROUGH MUCH OF THE AFTN WITH THE POTENTIAL FOR IFR CONDITIONS...GUSTY WINDS AND HAIL. THIS AREA IS IN A HEIGTENED RISK FOR SEVERE TSTMS. MORE ISOLATED CONVECTION IS POSSIBLE FARTHER NW DURING THE AFTN AS UPPER LEVEL TROUGH APPROACHES COINCIDENT WITH EASTWARD MOVING SURFACE BOUNDARY. DEEPER CONVECTION SHOULD ABATE/MOVE EAST OF THE AREA EARLY THIS EVENING WITH A FEW HOURS LULL IN SHOWERS. HOWEVER...AS CORE OF UPPER LEVEL TROUGH GETS CLOSER OVERNIGHT AND FRIDAY...SHOWERS AND ISOL THUNDER CHANCES WILL INCREASE. EXPECT GUSTY NW WINDS TO DEVELOP THIS EVENING AND OVERNIGHT AS WELL. MOYER && .GLASGOW WATCHES/WARNINGS/ADVISORIES... RED FLAG WARNING UNTIL MIDNIGHT MDT TONIGHT FOR MTZ134-135. RED FLAG WARNING UNTIL 6 AM MDT FRIDAY FOR MTZ136-137. LAKE WIND ADVISORY FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT FOR FOR FORT PECK LAKEFORT PECK LAKE. && WEATHER.GOV/GLASGOW
Hazardous weather outlook, Aug 2, 3:50 AM MDT, 11 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 350 AM MDT THU AUG 2 2012 MTZ016-017-021-022-059>061-031000- CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY- PETROLEUM-GARFIELD-NORTHERN PHILLIPS-SOUTHWEST PHILLIPS- NORTHERN VALLEY- 350 AM MDT THU AUG 2 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...TODAY AND TONIGHT A RED FLAG WARNING IS IN EFFECT FOR PHILLIPS... VALLEY... PETROLEUM... AND GARFIELD COUNTIES FROM NOON TODAY THROUGH MIDNIGHT AND THEN WILL CONFINE ITSELF TO MISSOURI BREAKS SOUTH UNTIL 6AM. VERY DRY DOWNSLOPE WIND FROM THE SOUTHEAST THIS MORNING FOLLOWED BY A WINDSHIFT TO THE NORTHEAST AND INCREASE IN SPEEDS WITH THE PASSAGE OF A COLD FRONT THIS AFTERNOON COULD EASILY LEAD TO CRITICAL FIRE WEATHER CONDITIONS AND POSSIBLY EXPLOSIVE FIRE GROWTH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ018>020-023>027-062-031000- DANIELS-SHERIDAN-WESTERN ROOSEVELT-MCCONE-RICHLAND-DAWSON-PRAIRIE- WIBAUX-EASTERN ROOSEVELT- 350 AM MDT THU AUG 2 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST MONTANA. .DAY ONE...TODAY AND TONIGHT STRONG THUNDERSTORMS ARE EXPECTED TO MOVE THROUGH THE AREA THIS AFTERNOON. SOME OF THESE STORMS MAY PRODUCE HAIL AND DAMAGING WINDS BEFORE MIDNIGHT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS 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
Special weather statement, Aug 2, 10:36 AM MDT, 4 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GLASGOW MT 1036 AM MDT THU AUG 2 2012 MTZ025>027-021730- DAWSON-PRAIRIE-WIBAUX- 1036 AM MDT THU AUG 2 2012 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... WESTERN WIBAUX COUNTY IN NORTHEAST MONTANA... EASTERN PRAIRIE COUNTY IN NORTHEAST MONTANA... SOUTHEASTERN DAWSON COUNTY IN NORTHEAST MONTANA... UNTIL 1130 AM MDT. AT 1033 AM MDT...THE PUBLIC REPORTED A STRONG THUNDERSTORM 7 MILES SOUTHWEST OF FALLON...MOVING NORTHEAST AT 25 MPH. HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THIS STORM. LOCATIONS IN THE ADVISORY INCLUDE... FALLON... THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. LAT...LON 4711 10456 4687 10439 4664 10522 4680 10533 TIME...MOT...LOC 1636Z 243DEG 23KT 4676 10516 TFJ WEATHER.GOV/GLASGOW
Local storm report, Aug 2, 10:38 AM MDT, 4 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1038 AM MDT THU AUG 02 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1034 AM HAIL TERRY 46.79N 105.31W
08/02/2012 E0.75 INCH PRAIRIE MT PUBLIC
MAINLY PEA SIZED HAIL.
&&
MATTMSpecial weather statement, Aug 2, 11:47 AM MDT, 3 hours 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GLASGOW MT 1147 AM MDT THU AUG 2 2012 MTZ022-023-021845- GARFIELD-MCCONE- 1147 AM MDT THU AUG 2 2012 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... SOUTHWESTERN MCCONE COUNTY IN NORTHEAST MONTANA... EASTERN GARFIELD COUNTY IN NORTHEAST MONTANA... UNTIL 1245 PM MDT. AT 1143 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 14 MILES WEST OF FLOWING WELLS REST AREA TO 8 MILES SOUTH OF JORDAN...AND MOVING EAST AT 15 MPH. HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THESE STORMS. LOCATIONS IN THE ADVISORY INCLUDE... FLOWING WELLS REST AREA... THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. LAT...LON 4738 10585 4716 10647 4721 10695 4741 10646 TIME...MOT...LOC 1748Z 265DEG 11KT 4732 10644 4721 10687 TFJ WEATHER.GOV/GLASGOW
Special weather statement, Aug 2, 12:47 PM MDT, 2 hours 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GLASGOW MT 1247 PM MDT THU AUG 2 2012 MTZ022-023-021945- GARFIELD-MCCONE- 1247 PM MDT THU AUG 2 2012 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... SOUTHWESTERN MCCONE COUNTY IN NORTHEAST MONTANA... EASTERN GARFIELD COUNTY IN NORTHEAST MONTANA... UNTIL 145 PM MDT. AT 1243 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 16 MILES WEST OF FLOWING WELLS REST AREA TO 8 MILES SOUTHEAST OF JORDAN...AND MOVING EAST AT 10 MPH. HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THESE STORMS. LOCATIONS IN THE ADVISORY INCLUDE... VAN NORMAN... LAT...LON 4746 10596 4726 10644 4720 10691 4736 10652 TIME...MOT...LOC 1846Z 253DEG 10KT 4733 10650 4724 10678 TFJ WEATHER.GOV/GLASGOW
Special weather statement, Aug 2, 1:41 PM MDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GLASGOW MT 141 PM MDT THU AUG 2 2012 MTZ023-025-026-022045- DAWSON-MCCONE-PRAIRIE- 141 PM MDT THU AUG 2 2012 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR... NORTHERN PRAIRIE COUNTY IN NORTHEAST MONTANA... SOUTHERN MCCONE COUNTY IN NORTHEAST MONTANA... WESTERN DAWSON COUNTY IN NORTHEAST MONTANA... UNTIL 245 PM MDT. AT 138 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES SOUTHEAST OF CIRCLE TO 9 MILES SOUTH OF BROCKWAY...AND MOVING EAST AT 20 MPH. HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THESE STORMS. LOCATIONS IN THE ADVISORY INCLUDE... LINDSAY... LAT...LON 4738 10476 4717 10525 4712 10597 4733 10548 TIME...MOT...LOC 1942Z 263DEG 16KT 4729 10546 4718 10572 TFJ WEATHER.GOV/GLASGOW
Special weather statement, Aug 2, 3:03 PM MDT, 0 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 |
|---|---|---|---|---|
| Aug 2, 10:36 AM MDT | Special Weather Statement | GGW | Dawson | 54 min |
| Aug 2, 11:47 AM MDT | Special Weather Statement | GGW | Garfield | 58 min |
| Aug 2, 12:47 PM MDT | Special Weather Statement | GGW | Garfield | 58 min |
| Aug 2, 1:41 PM MDT | Special Weather Statement | GGW | Dawson | 64 min |
| Aug 2, 2:40 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie, Wibaux | 62 min |
| Aug 2, 3:17 PM MDT | Lake Wind Advisory | GGW | Garfield, McCone, Phillips, Valley | 30 hr |
| Aug 2, 3:23 PM MDT | Special Weather Statement | GGW | Wibaux | 22 min |
| Aug 2, 3:57 PM MDT | Special Weather Statement | GGW | Daniels | 63 min |
Nearby
Special Weather Statements in Montana, 2012Every special weather statement in 2012
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.