Montana, 2001

Damaging Winds in Montana, July 16, 2001

July 16, 2001 · NWS GGW · 2 events in 2 counties and zones

2 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

What forecasters said that day

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 Glasgow, MT wrote its last area forecast discussion before the first event at Jul 16, 1:51 PM MST, 5 hours 29 minutes earlier.

Area forecast discussion, Jul 16, 1:51 PM MST, 5 hours 29 minutes before
NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
200 PM MDT MON JUL 16 2001

...CORRECTED FOR POPS IN THE CCF...AND ADD FFA FOR ZONES 016 AND
022...

SHORT TERM...QUIET AFTERNOON ACROSS NORTHEAST MONTANA...A CU FIELD
ACROSS THE EXTREME NORTHEASTERN ZONES...OTHERWISE SKY CLEAR ACROSS
THE REMAINDER OF THE CWFA. TEMPERATURES SLOWLY WARMING INTO THE 80S
ACROSS THE REGION. 12Z SOUNDING AT GGW SHOWED A CONVECTIVE
TEMPERATURE OF 83...THEREFORE MOST AREAS NEARING THIS MARK AND CU
SHOULD BEGIN TO FIRE UP ALL OVER THE AREA.

ETA/MESO ETA SEEMS TO HAVE A GOOD HANDLE ON THE SITUATION FOR THIS
EVENING INTO TONIGHT FOR THE REGION. A WAVE MOVES THROUGH THE FLOW
AND SHOULD MOVE INTO THE WESTERN ZONES BY 3Z. THE ROCKIES WEAKEN THE
VORT AS IT MOVES ACROSS THEM...THEN THE MODEL SPINS UP THE VORT OVER
THE CWA BETWEEN 3-6Z. BEST OMEGA IS OVER THE SOUTHERN ZONES OVER
NIGHT...HOWEVER THE ENTIRE CWFA SHOULD HAVE SOME TSRA TONIGHT INTO
THE OVERNIGHT HOURS.

TUESDAY...MORE SW FLOW WITH ANOTHER EVENING SHORTWAVE FOR MORE
EVENING THUNDERSTORMS...HOWEVER OMEGA REMAINS POSITIVE FOR MOST OF
THE DAY WITH NO REAL CHANGE IN THE LOW LEVEL ATMOSPHERIC
CONDITIONS...THEREFORE TSRA WILL BE AN OPTION FOR THE ENTIRE DAY.

WEDNESDAY...THE UPPER LOW SHIFTS A BIT EASTWARD...HOWEVER FOR
EASTERN MONTANA...LITTLE CHANGE. MORE PM TSRA.

TEMPS...GOING TOWARDS A WARMER OVERNIGHT LOW TEMPS IN THE
VALLEYS...AND TREND SLIGHTLY ABOVE GUIDANCE NUMBERS.       PROTON

EXTENDED...EXTENDED MODEL SOLUTIONS REMAIN CONSISTENT IN OVERALL
PATTERN THROUGH DAY 7. WILL CONTINUE TO SEE SW FLOW ALOFT WITH CHC
FOR TSRA THU AND FRI. CUTOFF LOW FORMS OVER NRN CA ON SAT WHICH
SHOULD ALLOW FLOW TO TURN MORE WRLY OR EVEN NWERLY OVER MT FOR DRIER
CONDS THIS WKEND. H5 HEIGHTS/THICKNESSES DONT CHG APPRECIABLY
THROUGH DAY 7. DRIER SFC AIR SHOULD MAKE FOR HIGHER DAYTIME TEMPS
WHICH WOULD CANCEL OUT ANY COOL ADVECTION WE WOULD GET ON NW FLOW.
SO WONT STRAY FROM CLIMO ON EXTENDED TEMPS.  WRIGHT

KGGW 065/082 063/082 062/081 062/082 058/083 056/085 058/084
     TTTTBBB  946333/9533222
KGDV 066/086 064/084 062/084 061/083 057/083 058/085 058/084
     TTTTBBB  945233/9533222

.GGW...FLASH FLOOD WATCH ZONES 016 AND 022.

The radar

The Billings radar (KBLX), 129 km away, was scanning. The volume nearest the first event began at 02:19 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Petroleum

When
July 16, 7:20 PM MST
Where
Petroleum County, Winnett
Measured
52 kt (60 mph)
Reported by
TRAINED SPOTTER
Coordinates
47.000, -108.350

Thunderstorm Wind, Garfield

When
July 16, 8:25 PM MST
Where
Garfield County, 35 mi NW of Jordan
Measured
52 kt (60 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
47.683, -107.417

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Montana in 2001Every state in 2001This day in weather historyWarnings in Montana, July 2001

Sources

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: 5261491, 5261492.