Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 178, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 21, 2002, 5:32 PM CDT for Martin County, Minnesota. It was in force for 43 min. 3 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 21, 2002, 5:32 PM CDT (22:32 UTC)
- Expired
- Jul 21, 2002, 6:15 PM CDT
- In force
- 43 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Martin County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 21, 5:50 PM CDT | Thunderstorm Wind 61 M | Welcome, MN | Corn fields flattened, few trees down. |
| Jul 21, 6:15 PM CDT | Hail 1 | Fairmont, MN | |
| Jul 21, 6:20 PM CDT | Hail 1 | Fairmont, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 21, 2:55 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 21, 3:40 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.5 hours before the alert went out and 153 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
- 2410 J/kg
- Mixed-layer CIN
- -202 J/kg
- Mixed-layer LCL
- 1319 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
031 WUUS53 KMPX 212232 SVRMSP MNC091-212315- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 531 PM CDT SUN JUL 21 2002 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA * UNTIL 615 PM CDT * AT 531 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 2 MILES SOUTH OF SHERBURN...OR ABOUT 12 MILES EAST OF JACKSON...MOVING EAST AT 20 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... CEYLON. DUNNELL. FAIRMONT. SHERBURN. TRIMONT. WELCOME. OTHER STRONG TO SEVERE THUNDERSTORMS WILL MOVE OUT OF JACKSON COUNTY INTO MARTIN COUNTY THROUGH 615 PM. THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4384 9486 4352 9482 4353 9433 4385 9452 BINAU
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 11:07 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs | 38 min |
| Jul 21, 7:04 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Todd | 41 min |
| Jul 21, 7:32 AM CDT | Severe Thunderstorm Warning | MPX | Morrison | 58 min |
| Jul 21, 7:45 AM CDT | Severe Thunderstorm Warning | MPX | Todd | 30 min |
| Jul 21, 2:53 PM CDT | Flash Flood Warning | MPX | Anoka, Hennepin, Wright | 3 hr |
| Jul 21, 5:00 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 45 min |
| Jul 21, 5:48 PM CDT | Flash Flood Warning | MPX | Freeborn | 3 hr |
| Jul 21, 6:00 PM CDT | Flash Flood Warning | MPX | Faribault, Martin | 3 hr |
| Jul 21, 6:20 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Martin | 40 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.