Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 183, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 25, 2002, 1:55 AM CDT for 5 counties in Minnesota. It was in force for 65 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 25, 2002, 1:55 AM CDT (06:55 UTC)
- Expired
- Jul 25, 2002, 3:00 AM CDT
- In force
- 65 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Chippewa County, MN, Lac qui Parle County, MN, Stevens County, MN, Swift County, MN, Yellow Medicine County, MN
The radar
The Aberdeen radar (KABR), 158 km from the middle of the area, began a volume at 06:58 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 |
|---|---|---|---|
| Jul 25, 2:40 AM CDT | Thunderstorm Wind 60 E | Chokio, MN | Damage to trees, sheds, grain bins, and crops. |
| Jul 25, 2:45 AM CDT | Thunderstorm Wind 50 E | Madison, MN | Large tree branch fell on roof of house. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 25, 12:25 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 6.9 hours before the alert went out and 161 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
- 2473 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 1734 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 14.5
The text
As transmitted, in the capitals the NWS used until 2016.
654 WUUS53 KMPX 250655 SVRMSP MNC023-073-149-151-173-250800- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 154 AM CDT THU JUL 25 2002 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... STEVENS COUNTY IN WEST CENTRAL MINNESOTA SWIFT COUNTY IN WEST CENTRAL MINNESOTA LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA * UNTIL 300 AM CDT * AT 154 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS WITH DAMAGING WINDS ALONG A LINE EXTENDING FROM 28 MILES NORTHWEST OF CHOKIO TO 27 MILES WEST OF NASSAU...OR ALONG A LINE EXTENDING FROM 6 MILES NORTHWEST OF WHEATON TO 19 MILES WEST OF MILBANK...MOVING SOUTHEAST AT 50 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... APPLETON. MADISON. MONTEVIDEO. MORRIS. LAT...LON 4516 9716 4461 9580 4512 9547 4625 9649
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 9:41 PM CDT | Severe Thunderstorm Warning | MPX | Martin | 49 min |
| Jul 24, 9:54 PM CDT | Severe Thunderstorm Warning | MPX | Faribault | 36 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; radar from the NEXRAD Level II archive.