Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 330, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 5, 2002, 9:40 PM CDT for Todd County, Minnesota. It was in force for 50 min. 1 report 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
- Sep 5, 2002, 9:40 PM CDT (02:40 UTC)
- Expired
- Sep 5, 2002, 10:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Todd County, MN
The radar
The Minneapolis radar (KMPX), 158 km from the middle of the area, began a volume at 02:43 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 |
|---|---|---|---|
| Sep 5, 10:00 PM CDT | Hail 0.75 | Long Prairie, 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
Minneapolis, MN (KMPX), launched 00:00Z, 2.7 hours before the alert went out and 157 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
- 1089 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1122 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
076 WUUS53 KMPX 060240 SVRMSP MNC153-060330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 939 PM CDT THU SEP 5 2002 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TODD COUNTY IN CENTRAL MINNESOTA * UNTIL 1030 PM CDT * AT 939 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES WEST OF GREY EAGLE...OR ABOUT 11 MILES SOUTH OF LONG PRAIRIE...MOVING NORTHEAST AT 10 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... BURTRUM. GREY EAGLE. LONG PRAIRIE. THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4592 9508 4577 9508 4580 9467 4615 9467
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 9:08 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Wright | 37 min |
| Sep 5, 9:43 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Wright | 62 min |
| Sep 5, 9:57 PM CDT | Tornado Warning | MPX | Wright | 48 min |
| Sep 5, 10:44 PM CDT | Severe Thunderstorm Warning | MPX | Wright | 46 min |
| Sep 5, 10:59 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Sherburne, Stearns | 46 min |
| Sep 6, 3:23 AM CDT | Flash Flood Warning | MPX | Hennepin, Wright | 4 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.