Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 179, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 21, 2002, 6:20 PM CDT for Faribault County, Martin County, Minnesota. It was in force for 40 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 21, 2002, 6:20 PM CDT (23:20 UTC)
- Expired
- Jul 21, 2002, 7:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Faribault County, MN, Martin County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 21, 6:30 PM CDT | Hail 1 | Blue Earth, MN | |
| Jul 21, 6:30 PM CDT | Thunderstorm Wind 52 E | Blue Earth, MN | Several trees 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 |
|---|---|---|---|
| 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, 11.3 hours before the alert went out and 134 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.
405 WUUS53 KMPX 212320 SVRMSP MNC043-091-220000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 616 PM CDT SUN JUL 21 2002 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA * UNTIL 700 PM CDT * AT 616 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS ALONG INTERSTATE 90 IN FARIBAULT AND MARTIN COUNTIES. ONE SEVERE STORM WAS 2 MILES EAST OF FAIRMONT...AND ANOTHER SEVERE STORM WAS OVER SHERBURN IN WESTERN MARTIN COUNTY. THE STORMS WERE MOVING EAST AT 40 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... BLUE EARTH. BRICELYN. DELAVAN. EASTON. FROST. WINNEBAGO. SHERBURN. FAIRMONT. NORTHROP. AT 610 PM...SPOTTERS ON THE SOUTH SIDE OF FAIRMONT REPORTED A WIND GUST TO 71 MPH. DESTRUCTIVE WINDS WERE ALSO MOVING EAST ACROSS WESTERN MARTIN COUNTY TOWARDS FAIRMONT. THE HIGH WINDS ASSOCIATED WITH THE 71 MPH GUST WILL MOVE INTO WESTERN FARIBAULT COUNTY. THIS IS A DANGEROUS STORM WITH DAMAGING WINDS...STAY INDOORS AWAY FROM WINDOWS. LAT...LON 4384 9436 4351 9431 4352 9377 4383 9379 $$ 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, 5:32 PM CDT | Severe Thunderstorm Warning | MPX | Martin | 43 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 |
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.