Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 87, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 9, 2004, 4:40 PM CDT for Carver County, Hennepin County, Wright County, Minnesota. It was in force for 65 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 9, 2004, 4:40 PM CDT (21:40 UTC)
- Expired
- May 9, 2004, 5:45 PM CDT
- In force
- 65 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Carver County, MN, Hennepin County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 42 km from the middle of the area, began a volume at 21:43 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 |
|---|---|---|---|
| May 9, 4:44 PM CDT | TORNADO | Waverly, MN | POSSIBLE TORNADO AT INTERSECTION OF ROUTES 8 AND 107 PENDING INVESTIGATION. REPORTED BY SHERIFF. |
| May 9, 5:00 PM CDT | HAIL 0.75 | 1 N Howard Lake, MN | |
| May 9, 5:21 PM CDT | TORNADO | Greenfield, MN | HOUSE DAMAGED AND GARAGE DESTROYED. PRELIMINARY TORNADO PENDING INVESTIGATION. |
| May 9, 5:35 PM CDT | TSTM WND DMG | 3 S Chanhassen, MN | TREES WERE DOWNED AT THE INTERSECTION OF ROUTES 212 AND 101. THE TIME WAS ESTIMATED. |
| May 9, 5:39 PM CDT | TSTM WND DMG | Plymouth, MN | TREES WERE DOWNED AT INTERSECTION OF BASS LAKE ROAD AND ROUTE 169 IN PLYMOUTH. TREES WERE ALSO DOWNED BETWEEN 539 PM AND 555 PM IN ORONO... INDEPENDENCE... CRYSTAL... ST. ANTHONY AND ROGERS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 9, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 9, 3:55 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.7 hours before the alert went out and 40 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
- 8 J/kg
- Mixed-layer CIN
- -483 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 092140 SVRMPX MNC019-053-171-092245- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 440 PM CDT SUN MAY 9 2004 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WRIGHT COUNTY IN CENTRAL MINNESOTA CARVER COUNTY IN EAST CENTRAL MINNESOTA HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA * UNTIL 545 PM CDT * AT 435 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. THIS STORM WAS LOCATED 15 MILES WEST OF BUFFALO...AND MOVING EAST AT 35 MPH. EXPECT DAMAGING WINDS AROUND 70 MPH. * LOCATIONS IMPACTED INCLUDE... WATERTOWN. BUFFALO. DELANO. LAKE MINNETONKA AREA. MINNEAPOLIS. A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. LAT...LON 4529 9423 4512 9425 4475 9364 4514 9333 $$ TDK
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 11:04 AM CDT | Severe Thunderstorm Warning | MPX | Yellow Medicine | 56 min |
| May 9, 1:53 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stevens | 67 min |
| May 9, 2:31 PM CDT | Severe Thunderstorm Warning | MPX | Swift | 59 min |
| May 9, 2:59 PM CDT | Severe Thunderstorm Warning | MPX | Pope | 31 min |
| May 9, 3:21 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Stearns | 54 min |
| May 9, 3:29 PM CDT | Severe Thunderstorm Warning | MPX | Swift | 31 min |
| May 9, 3:31 PM CDT | Tornado Warning | MPX | Kandiyohi | 29 min |
| May 9, 3:51 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne, Wright | 54 min |
| May 9, 3:59 PM CDT | Tornado Warning | MPX | Kandiyohi | 31 min |
| May 9, 4:05 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Stearns | 55 min |
| May 9, 4:13 PM CDT | Tornado Warning | MPX | Meeker, Stearns | 47 min |
| May 9, 4:49 PM CDT | Tornado Warning | MPX | Anoka, Sherburne, Wright | 26 min |
| May 9, 4:58 PM CDT | Severe Thunderstorm Warning | MPX | McLeod | 47 min |
| May 9, 5:11 PM CDT | Tornado Warning | MPX | Carver, Hennepin | 49 min |
| May 9, 5:18 PM CDT | Severe Thunderstorm Warning | MPX | Anoka | 42 min |
| May 9, 5:26 PM CDT | Severe Thunderstorm Warning | MPX | Chisago, Isanti | 64 min |
| May 9, 5:46 PM CDT | Severe Thunderstorm Warning | MPX | Sibley | 44 min |
| May 9, 5:47 PM CDT | Severe Thunderstorm Warning | MPX | Ramsey, Washington | 58 min |
| May 9, 5:48 PM CDT | Severe Thunderstorm Warning | MPX | McLeod | 42 min |
| May 9, 6:18 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Scott | 57 min |
| May 9, 6:32 PM CDT | Severe Thunderstorm Warning | MPX | Sibley | 58 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.