Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 112, NWS Grand Forks, ND

July 7, 2002Beltrami County, Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 7, 2002, 1:32 PM CDT for Beltrami County, Lake of the Woods County, Minnesota. It was in force for 43 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 7, 2002, 1:32 PM CDT (18:32 UTC)
Expired
Jul 7, 2002, 2:15 PM CDT
In force
43 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

Counties Beltrami County, MN, Lake of the Woods County, MN

What was reported inside it

TimeReportWhereRemark
Jul 7, 2:00 PM CDTThunderstorm WindBaudette, MNTrees were blown down.
Jul 7, 2:00 PM CDTThunderstorm WindWaskish, MNTree limbs were blown down.

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 nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 6.5 hours before the alert went out and 104 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 2002-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 216 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 2002-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
216 J/kg
Mixed-layer CIN
-245 J/kg
Mixed-layer LCL
1078 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
-7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 071832
SVRFAR
MNC007-077-071915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
132 PM CDT SUN JUL 7 2002

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA AND LAKE OF THE WOODS   
  COUNTY IN NORTH CENTRAL MINNESOTA.

* UNTIL 215 PM CDT.

* AT 130 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER NORTHERN BELTRAMI COUNTY...OR ABOUT 52
  MILES SOUTHEAST OF ROSEAU...MOVEMENT WAS TO THE EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN IN RURAL AREAS OF

  NORTHERN BELTRAMI COUNTY...
  SOUTHERN LAKE OF THE WOODS COUNTY...
  
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

LAT...LON 4838 9510 4821 9504 4830 9404 4855 9411


30
NNNN

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 10:35 AM CDTFlash Flood WarningFGFMarshall6 hr
Jul 7, 1:29 PM CDTTornado WarningFGFOtter Tail46 min
Jul 7, 2:20 PM CDTTornado WarningFGFOtter Tail25 min
Jul 7, 2:49 PM CDTTornado WarningFGFOtter Tail41 min
Jul 7, 5:42 PM CDTSevere Thunderstorm WarningFGFOtter Tail48 min
Jul 7, 6:28 PM CDTSevere Thunderstorm WarningFGFWadena47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2002Every severe thunderstorm warning in 2002

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.