Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 206, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 31, 2004, 10:51 PM CDT for Dakota County, Ramsey County, Washington County, Minnesota. It was in force for 39 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 31, 2004, 10:51 PM CDT (03:51 UTC)
- Expired
- Jul 31, 2004, 11:30 PM CDT
- In force
- 39 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Dakota County, MN, Ramsey County, MN, Washington County, MN
The radar
The Minneapolis radar (KMPX), 41 km from the middle of the area, began a volume at 03:53 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 31, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 3.9 hours before the alert went out and 44 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
- 465 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 1194 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 395 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 010351 SVRMPX MNC037-123-163-010430- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1050 PM CDT SAT JUL 31 2004 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA RAMSEY COUNTY IN EAST CENTRAL MINNESOTA DAKOTA COUNTY IN EAST CENTRAL MINNESOTA * UNTIL 1130 PM CDT * AT 1045 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED 7 MILES NORTHWEST OF EAGAN...OR ABOUT OVER MINNEAPOLIS...AND MOVING EAST AT 25 MPH. * LOCATIONS IMPACTED INCLUDE... EAGAN. ST. PAUL. SOUTH ST. PAUL. COTTAGE GROVE. AFTON. LAT...LON 4492 9316 4479 9331 4481 9279 4503 9280 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 7:32 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Watonwan | 58 min |
| Jul 31, 10:28 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Scott | 47 min |
| Jul 31, 10:46 PM CDT | Severe Thunderstorm Warning | MPX | McLeod | 29 min |
| Aug 1, 3:51 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Nicollet | 39 min |
| Aug 1, 3:53 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Nicollet | 37 min |
| Aug 1, 5:03 AM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 57 min |
| Aug 1, 5:41 AM CDT | Flash Flood Warning | MPX | Waseca | 2 hr |
| Aug 1, 6:35 AM CDT | Severe Thunderstorm Warning | MPX | Faribault | 55 min |
| Aug 1, 8:10 AM CDT | Flash Flood Warning | MPX | Freeborn | 13 hr |
| Aug 1, 9:38 AM CDT | Severe Thunderstorm Warning | MPX | McLeod | 32 min |
| Aug 1, 10:40 AM CDT | Severe Thunderstorm Warning | MPX | Dakota | 50 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.