Alert archive / Montana / Tornado Warnings in 2000

Tornado Warning 7, NWS Glasgow, MT

July 3, 2000Valley County, Montana

NWS Glasgow, MT issued this tornado warning at Jul 3, 2000, 7:25 PM MDT for Valley County, Montana. It was in force for 65 min. 9 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 3, 2000, 7:25 PM MDT (01:25 UTC)
Expired
Jul 3, 2000, 8:30 PM MDT
In force
65 min
Issued by
NWS Glasgow, MT
Area
Whole counties

County Valley County, MT

What was reported inside it

TimeReportWhereRemark
Jul 3, 7:30 PM MDTHail 1Glasgow Intl Arpt, MTWindows were broken out by hail and wind at the Glasgow Intl Airport.
Jul 3, 7:30 PM MDTThunderstorm Wind 70 MGlasgow, MT
Jul 3, 7:40 PM MDTTornado F0Glasgow, MTTornado was reported briefly touching down along the shores of Fort Peck Lake near The Pines Recreation Area
Jul 3, 7:40 PM MDTThunderstorm Wind 61 MGlasgow, MT
Jul 3, 7:45 PM MDTThunderstorm Wind 61 MPark Grove, MT
Jul 3, 8:00 PM MDTHail 0.88Glasgow, MT
Jul 3, 8:10 PM MDTThunderstorm Wind 55 MOswego, MT
Jul 3, 8:10 PM MDTThunderstorm Wind 68 MFrazer, MT
Jul 3, 8:27 PM MDTThunderstorm Wind 50 MFrazer, MT

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 3, 6:30 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.4 hours before the alert went out and 17 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-pSkew-T log-p diagram, Glasgow Intl Airport, MT at 00:00Z on 2000-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1264 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Glasgow Intl Airport, MT at 00:00Z on 2000-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1264 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1591 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
267 m²/s²
Significant tornado parameter
0.3
Supercell composite
7.6

Open this sounding in Storm Lab

The text

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

433 
WFUS55 KGGW 040125
TORGGW
MTC105-040230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GLASGOW MT
725 PM MDT MON JUL 3 2000

THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A

* TORNADO WARNING FOR...
  VALLEY COUNTY IN NORTHEAST MONTANA

* UNTIL 830 PM MDT

* AT 718 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 12 MILES WEST OF THE PINES RECREATION AREA...OR ABOUT 25
  MILES SOUTHWEST OF GLASGOW...MOVING NORTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  NASHUA AT 830 PM MDT

VERY LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE ALSO EXPECTED
WITH THIS STORM.

.END 

94

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 6:18 PM MDTSevere Thunderstorm WarningGGWGarfield57 min
Jul 3, 6:37 PM MDTSevere Thunderstorm WarningGGWPhillips, Valley53 min
Jul 3, 7:11 PM MDTSevere Thunderstorm WarningGGWGarfield64 min
Jul 3, 7:16 PM MDTSevere Thunderstorm WarningGGWValley59 min
Jul 3, 7:35 PM MDTSevere Thunderstorm WarningGGWMcCone55 min
Jul 3, 8:08 PM MDTSevere Thunderstorm WarningGGWRoosevelt67 min
Jul 3, 8:15 PM MDTSevere Thunderstorm WarningGGWGarfield60 min
Jul 3, 8:24 PM MDTSevere Thunderstorm WarningGGWDaniels66 min
Jul 3, 8:27 PM MDTSevere Thunderstorm WarningGGWMcCone63 min
Jul 3, 9:05 PM MDTTornado WarningGGWRoosevelt55 min
Jul 3, 9:26 PM MDTSevere Thunderstorm WarningGGWMcCone64 min
Jul 3, 9:47 PM MDTSevere Thunderstorm WarningGGWRichland58 min
Jul 3, 9:52 PM MDTSevere Thunderstorm WarningGGWRoosevelt53 min
Jul 3, 10:09 PM MDTSevere Thunderstorm WarningGGWDawson66 min
Jul 3, 10:41 PM MDTSevere Thunderstorm WarningGGWRichland64 min
Jul 3, 11:34 PM MDTSevere Thunderstorm WarningGGWDawson56 min
Jul 4, 12:35 AM MDTSevere Thunderstorm WarningGGWPrairie55 min
Jul 4, 1:37 PM MDTSevere Thunderstorm WarningGGWPetroleum53 min
Jul 4, 2:27 PM MDTSevere Thunderstorm WarningGGWGarfield63 min
Jul 4, 3:25 PM MDTSevere Thunderstorm WarningGGWGarfield65 min
Jul 4, 4:11 PM MDTTornado WarningGGWGarfield49 min
Jul 4, 4:24 PM MDTTornado WarningGGWMcCone66 min
Jul 4, 5:26 PM MDTSevere Thunderstorm WarningGGWMcCone64 min
Jul 4, 5:55 PM MDTSevere Thunderstorm WarningGGWDawson65 min

Nearby

Tornado Warnings in Montana, 2000Every tornado warning in 2000Tornadoes in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.