Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 250, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 13, 2004, 10:10 PM CDT for Brown County, Nicollet County, Sibley County, Minnesota. It was in force for 65 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
- Sep 13, 2004, 10:10 PM CDT (03:10 UTC)
- Expired
- Sep 13, 2004, 11:15 PM CDT
- In force
- 65 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Brown County, MN, Nicollet County, MN, Sibley County, MN
The radar
The Minneapolis radar (KMPX), 91 km from the middle of the area, began a volume at 03:13 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 |
|---|---|---|---|
| Sep 13, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 3.2 hours before the alert went out and 89 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
- 1151 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1601 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 264 m²/s²
- 0-3 km storm-relative helicity
- 493 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KMPX 140310
SVRMPX
MNC015-103-143-140415-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1009 PM CDT MON SEP 13 2004
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SIBLEY COUNTY IN CENTRAL MINNESOTA
BROWN COUNTY IN SOUTH CENTRAL MINNESOTA
NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA
* UNTIL 1115 PM CDT
* AT 1005 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 20 MILES
NORTHWEST OF SLEEPY EYE TO 20 MILES SOUTHWEST OF SLEEPY EYE...AND
MOVING EAST AT 45 MPH.
* LOCATIONS IMPACTED INCLUDE...
NEW ULM.
SLEEPY EYE.
GAYLORD.
LAFAYETTE.
WINTHROP.
LAT...LON 4453 9458 4441 9482 4415 9502 4414 9440
4429 9436 4424 9406 4453 9398
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 8:50 PM CDT | Severe Thunderstorm Warning | MPX | Redwood, Renville | 55 min |
| Sep 13, 8:53 PM CDT | Severe Thunderstorm Warning | MPX | Redwood, Renville | 52 min |
| Sep 13, 9:40 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 35 min |
| Sep 14, 6:49 PM CDT | Flash Flood Warning | MPX | Faribault, Freeborn, Martin | 6 hr |
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.