Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 192, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 21, 2004, 12:26 AM CDT for Brown County, Redwood County, Minnesota. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2004, 12:26 AM CDT (05:26 UTC)
- Expired
- Jul 21, 2004, 1:15 AM CDT
- In force
- 49 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Brown County, MN, Redwood County, MN
The radar
The Sioux Falls radar (KFSD), 133 km from the middle of the area, began a volume at 05:29 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 |
|---|---|---|---|
| Jul 20, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.4 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
- 1847 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1144 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 210526 SVRMPX MNC015-127-210615- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1226 AM CDT WED JUL 21 2004 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... REDWOOD COUNTY IN SOUTHWEST MINNESOTA BROWN COUNTY IN SOUTH CENTRAL MINNESOTA * UNTIL 115 AM CDT * AT 1219 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED NEAR WALNUT GROVE...OR ABOUT 20 MILES NORTHEAST OF SLAYTON...AND MOVING EAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... CLEMENTS. LAMBERTON. REVERE. SANBORN. SPRINGFIELD. WALNUT GROVE. WANDA. LAT...LON 4430 9561 4412 9559 4412 9492 4439 9495 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 10:25 PM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle, Yellow Medicine | 50 min |
| Jul 21, 12:06 AM CDT | Severe Thunderstorm Warning | MPX | Nicollet, Sibley | 39 min |
| Jul 21, 1:01 AM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Rice | 59 min |
| Jul 21, 2:04 AM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 56 min |
| Jul 21, 4:44 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 46 min |
| Jul 21, 6:28 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 32 min |
| Jul 21, 6:48 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Renville, Yellow Medicine | 57 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2004Every severe thunderstorm warning in 2004
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.