Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 207, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 17, 2001, 9:31 PM CDT for Wright County, Minnesota. It was in force for 44 min. No storm report in the archive falls 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.
The facts
- Issued
- Aug 17, 2001, 9:31 PM CDT (02:31 UTC)
- Expired
- Aug 17, 2001, 10:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Wright County, MN
The radar
The Minneapolis radar (KMPX), 51 km from the middle of the area, began a volume at 02:33 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 17, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.5 hours before the alert went out and 49 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
- 478 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1766 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
273 WUUS53 KMPX 180231 SVRMSP MNC171-180315- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 931 PM CDT FRI AUG 17 2001 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WRIGHT COUNTY IN CENTRAL MINNESOTA * UNTIL 1015 PM CDT * AT 931 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 6 MILES NORTHWEST OF HOWARD LAKE...OR ABOUT 18 MILES EAST OF LITCHFIELD...MOVING SOUTHEAST AT 25 MPH. * SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE... WAVERLY. MONTROSE. MAPLE LAKE. HOWARD LAKE. BUFFALO. COKATO. THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4523 9423 4499 9416 4500 9382 4527 9390
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 7:08 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 37 min |
| Aug 17, 7:14 PM CDT | Severe Thunderstorm Warning | MPX | Renville | 46 min |
| Aug 17, 7:17 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 58 min |
| Aug 17, 7:32 PM CDT | Severe Thunderstorm Warning | MPX | Pope | 43 min |
| Aug 17, 7:44 PM CDT | Severe Thunderstorm Warning | MPX | Stearns, Todd | 61 min |
| Aug 17, 7:59 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 46 min |
| Aug 17, 8:11 PM CDT | Severe Thunderstorm Warning | MPX | Benton | 49 min |
| Aug 17, 8:43 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker, Stearns | 47 min |
| Aug 17, 9:00 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Watonwan | 60 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.