A strong storm system moved across Southern Canada. This combined with high pressure over the Great Basin resulted in high winds along the eastern foothills of the Big Horn Mountains.
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 BYZ wrote it up.
A strong storm system moved across Southern Canada. This combined with high pressure over the Great Basin resulted in high winds along the eastern foothills of the Big Horn Mountains. In addition, a powerful jet stream moved across the Billings Forecast area. The above factors combined with the passage of a strong cold front generated damaging winds across the area.
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 Billings, MT wrote its last area forecast discussion before the first event at Nov 12, 9:02 PM MST, 2 hours 58 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BILLINGS MT
902 PM MST MON NOV 12 2007
.SHORT TERM...VALID FOR TUE AND WED...
BUSY NIGHT TONIGHT. WINDS GUSTING TO 85 MPH ALREADY THIS EVENING
IN LIVINGSTON. HAD REPORTS OF DAMAGE NEAR NYE AS WELL. A LARGE
WIND DRIVEN FIRE IS BEING PUSHED BY GUSTS ESTIMATED BY OFFICIALS
AT 80 MPH NEAR MELVILLE IN SWEET GRASS COUNTY. WINDS LOOK TO
CONTINUE AS IS...OR GET A BIT STRONGER ALL AREAS CURRENTLY IN
HIGH WIND WARNINGS. LATEST GUIDANCE STILL SUGGESTING WIND GUSTS TO
95 MPH FROM LIVINGSTON TO NYE. LATEST RUNS REMAINING CONSISTENT
WITH STRONGEST WINDS REMAINING NORTH OF THE AREA TOMORROW. AS A
RESULT HAVE CANCELLED THE HIGH WIND WARNING FOR MOST OF THE PLAINS
ZONES FOR TUESDAY...HOWEVER WILL STILL SEE SUSTAINED WINDS 25 TO
40 MPH WITH GUSTS NEAR 50 MPH AT TIMES. COLD FRONT IS STILL ON
TRACK FOR NORTHWEST ZONES BY EARLY TOMORROW MORNING...EXITING THE
SOUTHEAST ZONES IN THE AFTERNOON. THIS SHOULD BE THE KEY TO WINDS
CALMING DOWN TO MORE REASONABLE LEVELS TOMORROW.
OTHER NOTES...RAISED LOWS TONIGHT GIVEN WINDS AND CLOUD COVER
ACROSS THE AREA. IN AREAS WHERE MOUNTAIN WAVE ACTIVITY MAY OCCUR
TEMPERATURES MAY DROP SIGNIFICANTLY DURING ANY LULLS...BUT
INCREASE RAPIDLY WHEN DOWNSLOPE GUSTS RESUME. INCREASED CLOUD
COVER ALL AREAS THROUGH TOMORROW. CHAMBERS
.LONG TERM...VALID FOR THU...FRI...SAT...SUN...MON...
NOT A LOT OF CHANGES TO THE EXTENDED FORECAST PACKAGE. RIDGING TO
ZONAL FLOW THROUGH SUNDAY. MOISTURE STREAMS INTO THE WESTERN
MOUNTAINS AND WILL KEEP THE POPS FOR THE HIGHER TERRAIN. WEAK
ENERGY STREAMS THROUGH THE STATE THROUGH THE PERIOD...BUT
DOWNSLOPE FLOW SHOULD PROTECT THE PLAINS FROM PRECIPITATION...SO
WENT DRY. DID WARM THINGS UP A COUPLE OF DEGREES THROUGH THE
PERIOD AS DOWNSLOPE FLOW SHOULD PROVIDE ABOVE NORMAL
TEMPERATURES. THERE ARE SOME INDICATIONS THAT PATTERN WILL SHIFT
TO A COLDER ONE WITH A BETTER CHANCE OF PRECIPITATION NEXT SUNDAY
AND MONDAY. THE MODELS WERE DIFFERENT IN HOW ENERGY CARVES OUT A
TROUGH OVER THE WEST AND SHIFTS ACROSS THE AREA WITH COLDER
AIR...SO MAINTAINED CURRENT GRID SET. THE ECMWF HAS THE MOST
DRAMATIC PATTERN SHIFT FOR NEXT MONDAY AS IT DIGS A DEEP TROUGH
OUT OVER THE GREAT BASIN. WILL BE INTERESTING TO SEE HOW THIS
EVOLVES. HUMPHREY
&&
.AVIATION...
STRONG GUSTY WINDS THROUGHOUT THE NIGHT BUT SHOULD BEGIN DROPPING
OFF IN INTENSITY BY MID MORNING. LVM HAS SEEN GUSTS APPROACHING 80
KTS.
SOUTHWEST WINDS 25 TO 45 KTS REMAIN ALONG THE EASTERN SLOPES OF THE
BEARTOOTH...CRAZY AND BIG HORN MOUNTAINS. GUSTS OF 60-90 KTS ARE
POSSIBLE FROM LVM TO NYE THROUGH EARLY MORNING...WITH GUSTS OF 40-60 KTS
POSSIBLE ELSEWHERE...INCLUDING 3HT AND SHR THROUGH THE OVERNIGHT.
INTENSITY OF GUSTS SHOULD DROP TO 20 TO 35 KT RANGE BY LATE
MORNING. WINDS WILL SHIFT TO NORTHWEST IN THE LATE MORNING AND
CONTINUE IN THE SAME STRENGTH WITH GUSTS INCREASING AGAIN BY LATE
AFTERNOON TO THE 40 TO 50 KT RANGE.
LLWS IS ALSO A CONCERN ACROSS THE REGION OVERNIGHT...WINDS ARE
EAST AT 40 TO 50 KTS APPROXIMATELY 1000 TO 2000 FT AGL.
OTHERWISE...VFR CONDITIONS WILL PREVAIL THROUGH THE OVERNIGHT. GILSTAD
&&
.PRELIMINARY POINT TEMP/POPS...
TUE WED THU FRI SAT SUN MON
-----------------------------------------------------------
BIL 049/050 030/045 026/053 038/055 036/055 035/051 032/048
02/W 00/B 00/B 00/B 00/B 02/W 22/W
LVM 050/048 027/044 027/052 035/054 035/052 033/051 031/046
15/W 01/N 10/N 00/B 00/B 02/W 22/W
HDN 042/056 026/050 020/055 033/057 034/058 032/054 030/050
02/W 00/B 00/B 00/B 00/B 02/W 22/W
MLS 037/053 027/047 020/052 030/054 032/053 029/051 028/048
02/W 00/N 00/B 00/B 00/B 02/W 22/W
4BQ 041/054 024/044 019/054 030/055 032/054 031/053 030/048
02/W 00/N 00/B 00/B 00/B 02/W 22/W
BHK 039/054 024/044 019/048 026/049 027/049 025/049 027/045
00/N 00/N 00/B 00/B 00/B 02/W 22/W
SHR 046/054 027/043 017/054 031/055 032/055 030/054 029/048
02/W 20/N 00/B 00/B 00/B 02/W 22/W
&&
.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...HIGH WIND WARNING IN EFFECT UNTIL 5 PM MST TUESDAY FOR ZONES
28-41-63-65-66.
HIGH WIND WARNING IN EFFECT UNTIL 11 AM MST TUESDAY FOR ZONES
38-39-56.
WY...HIGH WIND WARNING IN EFFECT UNTIL 11 AM MST TUESDAY FOR ZONES
98-99.
&&
WEATHER.GOV/BILLINGSHAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BILLINGS MT 302 PM MST MON NOV 12 2007 MTZ028>042-056>058-063>068-WYZ098-099-132215- SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER- FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER- SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK- NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS- NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY- LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS- CRAZY MOUNTAINS-NORTHEAST BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS- 302 PM MST MON NOV 12 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH CENTRAL WYOMING. .DAY ONE...TONIGHT AN INTENSE STORM SYSTEM WILL MOVE THROUGH SOUTHERN CANADA TONIGHT PRODUCING VERY STRONG SOUTHWEST TO WEST WINDS ACROSS SOUTHERN MONTANA AND NORTH CENTRAL WYOMING. THOSE IN AREAS PRONE TO STRONG WINDS ALONG THE FOOTHILLS CAN EXPECT THE WINDS TO STRENGTHEN THIS EVENING AND CONTINUE STRONG THROUGH TUESDAY MORNING. GUSTS OF 80 TO 90 MPH ARE EXPECTED NEAR LIVINGSTON AND NYE TONIGHT. GUSTS TO 60 MPH WILL BE POSSIBLY IN AREAS NEAR JUDITH GAP...HARLOWTON AND BIG TIMBER TONIGHT AS WELL. PERSONS LIVING IN OR PLANNING TRAVEL THROUGH THESE AREAS SHOULD BE PREPARED FOR EXTREMELY STRONG WINDS. TRAVELERS ON INTERSTATE 90 NEAR LIVINGSTON CAN EXPECT VERY DANGEROUS CROSSWINDS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A COLD FRONT WILL THEN PUSH ACROSS THE AREA TUESDAY. THIS WILL BRING THE POSSIBILITY OF STRONG NORTHWEST WINDS OF 30 TO 45 MPH WITH GUSTS AS HIGH AS 60 MPH ACROSS NEARLY THE ENTIRE AREA. THE THREAT OF STRONG WINDS WILL DIMINISH BY TUESDAY EVENING. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
612 PM MST MON NOV 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM NON-TSTM WND DMG LIVINGSTON 45.66N 110.56W
11/12/2007 PARK MT PUBLIC
POWER KNOCKED OUT IN LIVINGSTON.
0334 PM HIGH SUST WINDS LIVINGSTON 45.66N 110.56W
11/12/2007 M56.00 MPH PARK MT ASOS
0340 PM NON-TSTM WND GST 22 SW FORT SMITH 45.10N 108.22W
11/12/2007 M67.00 MPH CARBON MT MESONET
HILLSBORO RAWS
0517 PM NON-TSTM WND GST 1 SW LIVINGSTON 45.65N 110.58W
11/12/2007 M85.00 MPH PARK MT MESONET
WEST LIVINGSTON I-90 DOT WIND SENSOR
0544 PM NON-TSTM WND DMG LIVINGSTON 45.66N 110.56W
11/12/2007 PARK MT PUBLIC
2 SEMI-TRAILERS OVERTURNED ON I-90 NEAR LIVINGSTON
&&
TRCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
945 PM MST MON NOV 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0645 PM NON-TSTM WND GST 7 W SHERIDAN 44.79N 107.10W
11/12/2007 E60.00 MPH SHERIDAN WY TRAINED SPOTTER
CONSISTENT 50-60 MPH WIND GUSTS FROM THE SOUTH
0650 PM NON-TSTM WND GST 4 WNW DAYTON 44.90N 107.34W
11/12/2007 M78.00 MPH SHERIDAN WY TRAINED SPOTTER
0700 PM NON-TSTM WND DMG NYE 45.45N 109.82W
11/12/2007 STILLWATER MT LAW ENFORCEMENT
50X100 FOOT POLE BARN DISINTIGRATED WITH DEBRIS
EVERYWHERE. FIDDLER CREEK ROAD NEAR NYE.
0726 PM NON-TSTM WND GST 4 W FISHTAIL 45.46N 109.57W
11/12/2007 M63.00 MPH STILLWATER MT MESONET
FISHTAIL RAWS
&&
TRCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
1023 PM MST MON NOV 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0955 PM NON-TSTM WND GST 1 W MELVILLE 46.10N 109.97W
11/12/2007 E80.00 MPH SWEET GRASS MT TRAINED SPOTTER
WINDS AT TIMES ARE DEAD CALM BUT CONTINUING TO BLOW ON
THE FLATS. FIRE IS WEST OF THE RANCH.
0957 PM NON-TSTM WND GST 5 SW NYE 45.40N 109.89W
11/12/2007 E0.00 MPH STILLWATER MT TRAINED SPOTTER
WINDS IN EXCESS OF 100 MPH AT STILLWATER MINE.
&&
DANBPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
1029 PM MST MON NOV 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1015 PM NON-TSTM WND GST FORT SMITH 45.33N 107.92W
11/12/2007 E60 MPH BIG HORN MT PUBLIC
WIND GUSTS SINCE 3 PM FREQUENTLY ABOVE 60 MPH.
&&
DANB2 high wind. Local standard time, as filed.
Consistent 50-60 mph wind gusts occurred 7 miles west of Sheridan, with a peak wind gust of 61 mph. Wind gusts of 78 mph were reported four miles west/northwest of Dayton.
Trees were knocked down by 70 mph wind gusts in Burgess Junction.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2007Every state in 2007This day in weather historyWarnings in Wyoming, November 2007
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: 64607, 64610.