Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 8, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 16, 2002, 9:44 PM CDT for Benton County, Morrison County, Minnesota. It was in force for 31 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
- Apr 16, 2002, 9:44 PM CDT (02:44 UTC)
- Expired
- Apr 16, 2002, 10:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Benton County, MN, Morrison County, MN
The radar
The Minneapolis radar (KMPX), 127 km from the middle of the area, began a volume at 02:48 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 |
|---|---|---|---|
| Apr 16, 9:46 PM CDT | Thunderstorm Wind 60 E | Sauk Rapids, MN | Roof partially ripped off and blown 100 feet away. |
| Apr 16, 10:10 PM CDT | Thunderstorm Wind 50 E | Duelm, MN | Tree 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 16, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.7 hours before the alert went out and 126 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
- 1904 J/kg
- Mixed-layer CIN
- -135 J/kg
- Mixed-layer LCL
- 1836 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 170244 SVRMSP MNC009-097-170315- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 943 PM CDT TUE APR 16 2002 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MORRISON COUNTY IN CENTRAL MINNESOTA BENTON COUNTY IN CENTRAL MINNESOTA * UNTIL 1015 PM CDT * AT 943 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH DAMAGING WINDS 5 MILES WEST OF GENOLA...OR ABOUT 7 MILES EAST OF LITTLE FALLS...MOVING EAST AT 55 MPH. * TREES WERE REPORTED DOWN 2 MILES SOUTH OF FORT RIPLEY AT 940 PM. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... FOLEY. LITTLE FALLS. PIERZ LAT...LON 4599 9447 4560 9416 4559 9387 4633 9403
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 7:16 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Yellow Medicine | 44 min |
| Apr 16, 7:52 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Swift | 53 min |
| Apr 16, 8:12 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Martin, Redwood, Watonwan | 48 min |
| Apr 16, 8:15 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Renville | 60 min |
| Apr 16, 8:34 PM CDT | Severe Thunderstorm Warning | MPX | Stearns, Todd | 56 min |
| Apr 16, 9:36 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Stearns, Wright | 39 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.