Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 206, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 28, 2002, 4:17 PM CDT for Renville County, Minnesota. It was in force for 58 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
- Jul 28, 2002, 4:17 PM CDT (21:17 UTC)
- Expired
- Jul 28, 2002, 5:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Renville County, MN
The radar
The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 21:20 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 28, 4:45 PM CDT | Thunderstorm Wind 52 E | Fairfax, MN | Several trees down. Corn flattened. |
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 28, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.3 hours before the alert went out and 103 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
- 1056 J/kg
- Mixed-layer CIN
- -124 J/kg
- Mixed-layer LCL
- 1511 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
857 WUUS53 KMPX 282117 SVRMSP MNC129-282215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 417 PM CDT SUN JUL 28 2002 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RENVILLE COUNTY IN CENTRAL MINNESOTA * UNTIL 515 PM CDT * AT 417 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL 10 MILES SOUTHWEST OF FAIRFAX...OR ABOUT 11 MILES SOUTHEAST OF REDWOOD FALLS...MOVING NORTH AT 20 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... BIRD ISLAND. FAIRFAX. HECTOR. OLIVIA. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER... SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. THIS IS A DANGEROUS STORM WITH LARGE HAIL...STAY INDOORS AWAY FROM WINDOWS. LAT...LON 4458 9505 4448 9468 4489 9460 4489 9505 RAH/SEB
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 3:39 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 51 min |
| Jul 28, 4:07 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur | 38 min |
| Jul 28, 4:13 PM CDT | Severe Thunderstorm Warning | MPX | Nicollet, Sibley | 47 min |
| Jul 28, 4:28 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 32 min |
| Jul 28, 4:32 PM CDT | Severe Thunderstorm Warning | MPX | Rice | 43 min |
| Jul 28, 4:58 PM CDT | Severe Thunderstorm Warning | MPX | Scott | 47 min |
| Jul 28, 5:21 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Nicollet | 54 min |
| Jul 28, 5:22 PM CDT | Severe Thunderstorm Warning | MPX | Dakota | 38 min |
| Jul 28, 5:41 PM CDT | Tornado Warning | MPX | Nicollet | 34 min |
| Jul 28, 5:43 PM CDT | Flash Flood Warning | MPX | McLeod, Sibley | 2 hr |
| Jul 28, 5:43 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 47 min |
| Jul 28, 5:45 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Sibley | 45 min |
| Jul 28, 5:46 PM CDT | Severe Thunderstorm Warning | MPX | Scott | 44 min |
| Jul 28, 5:49 PM CDT | Tornado Warning | MPX | Goodhue | 26 min |
| Jul 28, 6:06 PM CDT | Flash Flood Warning | MPX | Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and 1 more | 3 hr |
| Jul 28, 6:11 PM CDT | Severe Thunderstorm Warning | MPX | Waseca | 49 min |
| Jul 28, 6:23 PM CDT | Severe Thunderstorm Warning | MPX | Rice | 52 min |
| Jul 28, 6:34 PM CDT | Severe Thunderstorm Warning | MPX | Steele | 41 min |
| Jul 28, 6:39 PM CDT | Tornado Warning | MPX | Rice | 36 min |
| Jul 28, 6:50 PM CDT | Tornado Warning | MPX | Goodhue | 25 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.