Alert archive / Montana / Tornado Watches in 1997

Tornado Watch 538

June 29, 199716 counties in Montana

The Storm Prediction Center issued this tornado watch at Jun 29, 1997, 2:30 PM MDT for 16 counties in Montana. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 29, 1997, 2:30 PM MDT (20:30 UTC)
Expired
Jun 29, 1997, 8:00 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Big Horn County, MT, Carbon County, MT, Fergus County, MT, Gallatin County, MT, Golden Valley County, MT, Judith Basin County, MT, Meagher County, MT, Musselshell County, MT, Park County, MT, Petroleum County, MT, Rosebud County, MT, Stillwater County, MT, Sweet Grass County, MT, Treasure County, MT, Wheatland County, MT, Yellowstone County, MT

The radar

The Billings radar (KBLX), 66 km from the middle of the area, began a volume at 20:29 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.

Warnings issued inside it

16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 29, 2:53 PM MDTSevere Thunderstorm WarningTFXGallatin67 min
Jun 29, 3:30 PM MDTSevere Thunderstorm WarningTFXCascade, Meagher60 min
Jun 29, 4:35 PM MDTTornado WarningBYZWheatland65 min
Jun 29, 4:39 PM MDTTornado WarningTFXJudith Basin36 min
Jun 29, 5:07 PM MDTSevere Thunderstorm WarningBYZRosebud, Treasure63 min
Jun 29, 5:18 PM MDTSevere Thunderstorm WarningTFXFergus57 min
Jun 29, 5:30 PM MDTSevere Thunderstorm WarningBYZSweet Grass65 min
Jun 29, 5:42 PM MDTSevere Thunderstorm WarningBYZGolden Valley, Wheatland63 min
Jun 29, 6:09 PM MDTTornado WarningBYZTreasure61 min
Jun 29, 6:16 PM MDTSevere Thunderstorm WarningBYZYellowstone64 min
Jun 29, 6:25 PM MDTSevere Thunderstorm WarningBYZBig Horn65 min
Jun 29, 6:39 PM MDTSevere Thunderstorm WarningBYZRosebud61 min
Jun 29, 6:47 PM MDTSevere Thunderstorm WarningBYZTreasure63 min
Jun 29, 6:51 PM MDTSevere Thunderstorm WarningBYZStillwater, Yellowstone64 min
Jun 29, 7:19 PM MDTSevere Thunderstorm WarningBYZMusselshell61 min
Jun 29, 7:52 PM MDTTornado WarningBYZCuster, Rosebud48 min

The nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 8.5 hours before the alert went out and 192 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, Great_falls, MT at 12:00Z on 1997-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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, Great_falls, MT at 12:00Z on 1997-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.193958Sfc1 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
2 J/kg
Mixed-layer CIN
-305 J/kg
Mixed-layer LCL
833 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

Nearby

Tornado Watches in Montana, 1997Every tornado watch in 1997

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.