Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 17, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Jun 9, 2002, 8:58 PM CDT for Koochiching County, Minnesota. It was in force for 32 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 9, 2002, 8:58 PM CDT (01:58 UTC)
- Expired
- Jun 9, 2002, 9:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Duluth, MN
- Area
- Counties, with a storm outline in the text
County Koochiching County, MN
The radar
The Duluth radar (KDLH), 196 km from the middle of the area, began a volume at 01:58 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 9, 9:15 PM CDT | Thunderstorm Wind 50 E | Ranier, MN |
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, 2.0 hours before the alert went out and 51 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 543 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 283 m²/s²
- 0-3 km storm-relative helicity
- 475 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 9, 3:04 PM CDT, 5 hours 54 minutes earlier.
Area forecast discussion, Jun 9, 3:04 PM CDT, 5 hours 54 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 230 PM CDT SUN JUN 9 2002 FORECAST FOR THE NEXT PACKAGE WILL BE AFFECTS OF UPPER LOW. FOR TONIGHT...COOL EAST FLOW HAS INHIBITED ANY CONVECTION FROM FIRING OVER NORTHEASTERN MN THIS AFTERNOON...BUT ARE STILL A POSSIBILITY TONIGHT AS ISENTROPIC LIFT CONTINUES THIS EVENING. EXPECT MOST OVER FAR NORTHERN MN...NORTH OF SURFACE FRONT. TOMORROW WILL BE NEARLY A REPEAT OF TODAYS WEATHER...WITH THE BEST ISENTROPIC LIFT STARTING OUT IN WESTERN MN...THEN SPREADING EAST. MOISTURE NOT A PROBLEM WITH 850 DEW POINTS IN THE OVER 10C AND MIXING RATIOS 8 G/KG AND GREATER. THETA-E RIDGE SETS UP OVER EASTERN DAKOTAS/WESTERN MN TNT AND SLOWLY SHIFTS INTO NORTHEASTERN MINNESOTA MONDAY NIGHT..AND INTO NORTHWEST WISCONSIN LATE MONDAY NIGHT. UNTIL MONDAY NIGHT WHEN FRONT MOVES THROUGH DO NOT EXPECT MUCH ORGANIZED CONVECTION. FOLLOWED GUIDANCE NUMBERS...BUT BROUGHT TEMPS DOWN FOR THE LAKE SUPERIOR SHORE AREAS. .DLH...NONE.
The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 8:08 PM CDT | Severe Thunderstorm Warning | DLH | Koochiching | 52 min |
| Jun 9, 10:45 PM CDT | Severe Thunderstorm Warning | DLH | Koochiching | 60 min |
| Jun 9, 11:45 PM CDT | Severe Thunderstorm Warning | DLH | Koochiching | 45 min |
| Jun 10, 12:16 AM CDT | Flash Flood Warning | DLH | Koochiching, Saint Louis | 3 hr |
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; radar from the NEXRAD Level II archive.