Alert archive / North Dakota / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 627

July 25, 20017 counties in Montana; 11 counties in North Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 25, 2001, 5:15 PM MDT for 7 counties in Montana; 11 counties in North Dakota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 25, 2001, 5:15 PM MDT (23:15 UTC)
Expired
Jul 25, 2001, 10:00 PM MDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Carter County, MT, Custer County, MT, Dawson County, MT, Fallon County, MT, Powder River County, MT, Richland County, MT, Wibaux County, MT, Billings County, ND, Bowman County, ND, Burke County, ND, Divide County, ND, Dunn County, ND, Golden Valley County, ND, McKenzie County, ND, Mountrail County, ND, Renville County, ND, Slope County, ND, Williams County, ND

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 25, 5:29 PM MDTSevere Thunderstorm WarningBISGolden Valley61 min
Jul 25, 5:43 PM MDTTornado WarningGGWWibaux62 min
Jul 25, 5:45 PM MDTSevere Thunderstorm WarningGGWDawson60 min
Jul 25, 5:54 PM MDTTornado WarningBISGolden Valley66 min
Jul 25, 6:42 PM MDTTornado WarningBYZFallon63 min
Jul 25, 6:46 PM MDTSevere Thunderstorm WarningGGWWibaux59 min
Jul 25, 6:55 PM MDTTornado WarningBISGolden Valley, Slope65 min
Jul 25, 7:23 PM MDTSevere Thunderstorm WarningBISBillings67 min
Jul 25, 7:45 PM MDTTornado WarningBYZFallon55 min
Jul 25, 7:53 PM MDTSevere Thunderstorm WarningBISSlope67 min
Jul 25, 8:00 PM MDTSevere Thunderstorm WarningBYZCuster60 min
Jul 25, 8:34 PM MDTSevere Thunderstorm WarningBISBowman56 min
Jul 25, 8:58 PM MDTSevere Thunderstorm WarningBISSlope62 min
Jul 25, 9:13 PM MDTFlash Flood WarningBISBowman, Golden Valley, Slope6 hr
Jul 25, 9:29 PM MDTSevere Thunderstorm WarningBISBowman61 min

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 11.3 hours before the alert went out and 234 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 12:00Z on 2001-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 57 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 12:00Z on 2001-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
57 J/kg
Mixed-layer CIN
-184 J/kg
Mixed-layer LCL
1142 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
79 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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 25, 12:45 AM MDTSevere Thunderstorm WatchSPCCarter, Custer, Dawson, Fallon, McCone, Powder River and 3 more5 hr

Nearby

Severe Thunderstorm Watches in North Dakota, 2001Severe Thunderstorm Watches in Montana, 2001Every severe thunderstorm watch in 2001

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.