Alert archive / Minnesota / Tornado Warnings in 2002

Tornado Warning 1, NWS Grand Forks, ND

June 9, 2002Becker County, Clay County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jun 9, 2002, 5:53 AM CDT for Becker County, Clay County, Minnesota. It was in force for 37 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
Jun 9, 2002, 5:53 AM CDT (10:53 UTC)
Expired
Jun 9, 2002, 6:30 AM CDT
In force
37 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

Counties Becker County, MN, Clay County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 104 km from the middle of the area, began a volume at 10:56 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.

What was reported inside it

TimeReportWhereRemark
Jun 9, 6:00 AM CDTHail 0.75Ulen, MN
Jun 9, 6:00 AM CDTThunderstorm WindUlen, 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 00:00Z, 10.9 hours before the alert went out and 272 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 00:00Z on 2002-06-09Temperature 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 00:00Z on 2002-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2278 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
68 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 
WFUS53 KFGF 091053
TORFAR
MNC005-027-091130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
553 AM CDT SUN JUN 9 2002

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  NORTHWESTERN BECKER COUNTY IN NORTHWEST MINNESOTA AND
  NORTHEASTERN CLAY COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 630 AM CDT.

* AT 551 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 3 MILES SOUTH OF ULEN...OR
  ABOUT 24 MILES NORTHWEST OF DETROIT LAKES...MOVEMENT WAS TO THE
  EAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...

  OGEMA AT 620 AM AND
  WHITE EARTH AT 625 AM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO
ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM SUNDAY
MORNING FOR EASTERN NORTH DAKOTA.

LAT...LON 4709 9641 4692 9632 4700 9572 4714 9586


 YOUR FORECASTER NUMBER REQUIRED FOR SHORT FUSE WARNINGS 

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 10:59 PM CDTSevere Thunderstorm WarningFGFNorman46 min
Jun 9, 12:07 AM CDTSevere Thunderstorm WarningFGFNorman38 min
Jun 9, 12:37 AM CDTSevere Thunderstorm WarningFGFPolk38 min
Jun 9, 1:30 AM CDTSevere Thunderstorm WarningFGFBecker, Mahnomen45 min
Jun 9, 2:36 AM CDTFlash Flood WarningFGFPolk6 hr
Jun 9, 3:31 AM CDTSevere Thunderstorm WarningFGFMahnomen, Norman44 min
Jun 9, 4:14 AM CDTSevere Thunderstorm WarningFGFBecker, Clay, Mahnomen, Norman46 min
Jun 9, 4:16 AM CDTFlash Flood WarningFGFNorman6 hr
Jun 9, 4:57 AM CDTSevere Thunderstorm WarningFGFBecker, Clay, Mahnomen, Norman63 min
Jun 9, 5:04 AM CDTFlash Flood WarningFGFMahnomen6 hr
Jun 9, 5:23 AM CDTFlash Flood WarningFGFPennington, Polk, Red Lake6 hr
Jun 9, 5:57 AM CDTSevere Thunderstorm WarningFGFMahnomen, Norman63 min
Jun 9, 6:07 AM CDTFlash Flood WarningFGFBecker, Clay6 hr
Jun 9, 6:29 AM CDTSevere Thunderstorm WarningFGFBecker, Clay61 min
Jun 9, 7:35 AM CDTSevere Thunderstorm WarningFGFBecker55 min
Jun 9, 7:47 AM CDTSevere Thunderstorm WarningFGFClearwater43 min
Jun 9, 7:53 AM CDTSevere Thunderstorm WarningFGFBeltrami, Hubbard67 min
Jun 9, 7:56 AM CDTFlash Flood WarningFGFClearwater4 hr
Jun 9, 8:28 AM CDTSevere Thunderstorm WarningFGFBecker, Clearwater62 min
Jun 9, 10:51 AM CDTSevere Thunderstorm WarningFGFPolk39 min
Jun 9, 11:33 AM CDTFlash Flood WarningFGFPennington, Polk, Red Lake6 hr
Jun 9, 1:48 PM CDTSevere Thunderstorm WarningFGFPolk42 min
Jun 9, 5:25 PM CDTFlash Flood WarningFGFMarshall, Pennington, Red Lake4 hr

Nearby

Tornado Warnings in Minnesota, 2002Every tornado warning in 2002Tornadoes 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; radar from the NEXRAD Level II archive.