Alert archive / North Dakota / Tornado Watches in 1999

Tornado Watch 472

June 25, 199926 counties in North Dakota

The Storm Prediction Center issued this tornado watch at Jun 25, 1999, 7:00 PM MDT for 26 counties in North Dakota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 25, 1999, 7:00 PM MDT (01:00 UTC)
Expired
Jun 26, 1999, 12:00 AM MDT
In force
5 hr
Issued by
the Storm Prediction Center
All 26 counties

Adams County, ND, Barnes County, ND, Benson County, ND, Burleigh County, ND, Dickey County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grand Forks County, ND, Grant County, ND, Griggs County, ND, Hettinger County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Nelson County, ND, Oliver County, ND, Sheridan County, ND, Sioux County, ND, Steele County, ND, Stutsman County, ND, Wells County, ND

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 25, 7:23 PM MDTSevere Thunderstorm WarningFGFBenson, Ramsey47 min
Jun 25, 7:24 PM MDTSevere Thunderstorm WarningBISGrant, Sioux66 min
Jun 25, 8:03 PM MDTSevere Thunderstorm WarningBISMorton42 min
Jun 25, 8:05 PM MDTFlash Flood WarningFGFBenson, Ramsey3 hr
Jun 25, 8:20 PM MDTSevere Thunderstorm WarningBISBurleigh, Morton55 min
Jun 25, 8:47 PM MDTSevere Thunderstorm WarningBISEmmons58 min
Jun 25, 9:00 PM MDTSevere Thunderstorm WarningBISKidder60 min
Jun 25, 9:13 PM MDTSevere Thunderstorm WarningBISLogan62 min
Jun 25, 9:15 PM MDTTornado WarningBISSheridan, Wells45 min
Jun 25, 9:15 PM MDTTornado WarningBISBurleigh45 min
Jun 25, 9:26 PM MDTTornado WarningBISKidder34 min
Jun 25, 9:37 PM MDTSevere Thunderstorm WarningBISFoster, Stutsman53 min
Jun 25, 10:17 PM MDTSevere Thunderstorm WarningFGFBarnes, Griggs33 min
Jun 25, 10:37 PM MDTSevere Thunderstorm WarningFGFSteele, Traill33 min
Jun 25, 11:01 PM MDTSevere Thunderstorm WarningFGFBarnes, Cass, Steele49 min

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.0 hours before the alert went out and 8 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, Bismarck Municip, ND at 00:00Z on 1999-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4959 joules per kilogram.LCLEL10008507005003002001001 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, Bismarck Municip, ND at 00:00Z on 1999-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
4959 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1683 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
1.5
Supercell composite
25.7

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
Jun 25, 10:30 PM MDTSevere Thunderstorm WatchSPCBarnes, Cass, Grand Forks, Ransom, Steele, Traill and 1 more5 hr

Nearby

Tornado Watches in North Dakota, 1999Every tornado watch in 1999

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.