Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 158, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 18, 2001, 8:17 PM CDT for Freeborn County, Steele 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jun 18, 2001, 8:17 PM CDT (01:17 UTC)
- Expired
- Jun 18, 2001, 9:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Freeborn County, MN, Steele County, MN
The radar
The Minneapolis radar (KMPX), 115 km from the middle of the area, began a volume at 01:17 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 |
|---|---|---|---|
| Jun 18, 8:28 PM CDT | Hail 1 | Owatonna, 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 |
|---|---|---|---|
| Jun 18, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 18, 7:45 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.3 hours before the alert went out and 115 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
- 2360 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1718 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 13.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 190120 SVRMSP MNC047-147-190215- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 817 PM CDT MON JUN 18 2001 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... FREEBORN COUNTY IN MINNESOTA STEELE COUNTY IN MINNESOTA * UNTIL 915 PM CDT * AT 817 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM JUST SOUTHEAST OF WASECA. OTHER SEVERE STORMS EXTENDED SOUTH TO NEAR FROST WHICH IS ABOUT 10 MILES EAST OF BLUE EARTH. THESE STORMS HAVE HAD A HISTORY OF PRODUCING LARGE HAIL AS LARGE AS GOLF BALLS. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...N OWATONNA. ALBERT LEA. HAYWARD. MERIDEN. FREEBORN. LAT...LON 4364 9350 4358 9324 4416 9308 4413 9335 &
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:14 PM CDT | Tornado Warning | MPX | Isanti, Kanabec | 31 min |
| Jun 18, 7:40 PM CDT | Tornado Warning | MPX | Chisago | 35 min |
| Jun 18, 7:46 PM CDT | Severe Thunderstorm Warning | MPX | Faribault | 44 min |
| Jun 18, 7:50 PM CDT | Severe Thunderstorm Warning | MPX | Waseca | 40 min |
| Jun 18, 10:11 PM CDT | Severe Thunderstorm Warning | MPX | Steele | 19 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2001Every severe thunderstorm warning in 2001
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.