Alert archive / North Dakota / Tornado Watches in 1999

Tornado Watch 470

June 25, 19999 counties in Minnesota; 26 counties in North Dakota

The Storm Prediction Center issued this tornado watch at Jun 25, 1999, 4:00 PM CDT for 9 counties in Minnesota; 26 counties in North Dakota. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 25, 1999, 4:00 PM CDT (21:00 UTC)
Expired
Jun 25, 1999, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 35 counties

Clearwater County, MN, Kittson County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Benson County, ND, Bottineau County, ND, Burke County, ND, Cavalier County, ND, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, McHenry County, ND, McLean County, ND, Mercer County, ND, Mountrail County, ND, Nelson County, ND, Oliver County, ND, Pembina County, ND, Pierce County, ND, Ramsey County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Steele County, ND, Towner County, ND, Traill County, ND, Walsh County, ND, Ward County, ND, Wells County, ND

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 25, 4:53 PM CDTSevere Thunderstorm WarningFGFKittson32 min
Jun 25, 5:17 PM CDTSevere Thunderstorm WarningFGFRoseau33 min
Jun 25, 5:23 PM CDTTornado WarningFGFRoseau32 min
Jun 25, 5:38 PM CDTTornado WarningFGFKittson32 min
Jun 25, 5:53 PM CDTFlash Flood WarningFGFRoseau3 hr
Jun 25, 6:01 PM CDTSevere Thunderstorm WarningFGFRoseau34 min
Jun 25, 6:28 PM CDTTornado WarningFGFRoseau32 min
Jun 25, 6:28 PM CDTSevere Thunderstorm WarningBISMercer62 min
Jun 25, 7:54 PM CDTSevere Thunderstorm WarningFGFBenson, Ramsey36 min
Jun 25, 8:23 PM CDTSevere Thunderstorm WarningFGFBenson, Ramsey47 min
Jun 25, 9:05 PM CDTFlash Flood WarningFGFBenson, Ramsey3 hr
Jun 25, 9:10 PM CDTSevere Thunderstorm WarningFGFRamsey, Walsh35 min

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 9.0 hours before the alert went out and 473 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, International Fa, MN at 12:00Z on 1999-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, International Fa, MN at 12:00Z on 1999-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1497 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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The text

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

Nearby

Tornado Watches in North Dakota, 1999Tornado Watches in Minnesota, 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.