Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 387, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 12, 2005, 11:04 PM CDT for Chisago County, Washington County, Minnesota; Pierce County, Polk County, Saint Croix County, Wisconsin. It was in force for 56 min. 2 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
- Sep 12, 2005, 11:04 PM CDT (04:04 UTC)
- Expired
- Sep 13, 2005, 12:00 AM CDT
- In force
- 56 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Chisago County, MN, Washington County, MN, Pierce County, WI, Polk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 78 km from the middle of the area, began a volume at 04:05 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 |
|---|---|---|---|
| Sep 12, 11:35 PM CDT | TSTM WND DMG | Hammond, WI | WINDOWS BLOWN OUT OF HOME. SOME STRUCTURAL DAMAGE AT SCHOOL. |
| Sep 12, 11:45 PM CDT | TSTM WND DMG | Amery, WI | 6 HANGERS DAMAGED AT AIRPORT. FARMERS CO-OP WERE SEVERELY DAMAGED. THE TIME WAS ESTIMATED. |
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 |
|---|---|---|---|
| Sep 12, 7:45 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 4.1 hours before the alert went out and 81 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
- 968 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 130404 SVRMPX MNC025-163-WIC093-095-109-130500- /O.NEW.KMPX.SV.W.0387.050913T0404Z-050913T0500Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1104 PM CDT MON SEP 12 2005 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CHISAGO COUNTY IN EAST CENTRAL MINNESOTA WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA POLK COUNTY IN NORTHWEST WISCONSIN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN PIERCE COUNTY IN WEST CENTRAL WISCONSIN * UNTIL MIDNIGHT CDT * AT 1101 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 65 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 25 MILES NORTH OF STILLWATER TO 18 MILES SOUTHWEST OF HUDSON...AND MOVING EAST AT 45 MPH. * LOCATIONS IMPACTED INCLUDE... STILLWATER... HUDSON... RIVER FALLS... NEW RICHMOND... AMERY... FOREST LAKE... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 4541 9299 4479 9297 4473 9217 4546 9223 $$ KAT
2 follow-up statements
000 WWUS53 KMPX 130439 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1137 PM CDT MON SEP 12 2005 MNC025-163-130447- /O.CAN.KMPX.SV.W.0387.000000T0000Z-050913T0500Z/ CHISAGO MN-WASHINGTON MN- 1137 PM CDT MON SEP 12 2005 ...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON AND CHISAGO COUNTIES IS CANCELLED... THE LINE OF STORMS THAT PROMPTED THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON AND CHISAGO COUNTIES HAS MOVED EAST OF THE AREA. THEREFORE...THE WARNING HAS BEEN CANCELLED. A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT TUESDAY MORNING FOR SOUTHERN MINNESOTA. LAT...LON 4539 9264 4477 9265 4474 9218 4546 9223 $$ WIC093-095-109-130500- /O.CON.KMPX.SV.W.0387.000000T0000Z-050913T0500Z/ POLK WI-ST. CROIX WI-PIERCE WI- 1137 PM CDT MON SEP 12 2005 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR PIERCE...ST. CROIX AND POLK COUNTIES... AT 1135 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 9 MILES NORTH OF WANDEROOS TO BELDENVILLE...AND MOVING EAST AT 45 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE RANGE...MARTEL...LITTLE FALLS...JOEL...HUNTINGTON...HOULTON...HERSEY...FOREST...EMERALD... DERONDA...CYLON...BOARDMAN...WOODVILLE...STAR PRAIRIE...SPRING VALLEY...ROBERTS...RIVER FALLS...NEW RICHMOND...HAMMOND...DEER PARK...CLEAR LAKE...BALDWIN AND AMERY. THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE. THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS LAT...LON 4539 9264 4477 9265 4474 9218 4546 9223 $$ KAT
000 WWUS53 KMPX 130459 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1159 PM CDT MON SEP 12 2005 WIC093-095-109-130510- /O.EXP.KMPX.SV.W.0387.000000T0000Z-050913T0500Z/ POLK WI-ST. CROIX WI-PIERCE WI- 1159 PM CDT MON SEP 12 2005 ...THE SEVERE THUNDERSTORM WARNING FOR PIERCE...ST. CROIX AND POLK COUNTIES WILL EXPIRE AT MIDNIGHT CDT... STRONG STORMS WERE MOVING OUT OF THE WARNED AREA. HEAVY RAIN AND LIGHTNING WILL GRADUALLY TAPER OFF AROUND 1230 AM AT BALSAM LAKE AND AMERY...AND BY 1 AM AT NEW RICHMOND AND RIVER FALLS. LAT...LON 4539 9264 4477 9265 4474 9218 4546 9223 $$ TDK
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 7:14 PM CDT | Tornado Warning | MPX | Chippewa, Lac qui Parle, Yellow Medicine | 61 min |
| Sep 12, 7:31 PM CDT | Flash Flood Warning | MPX | Chippewa, Lac qui Parle, Yellow Medicine | 3 hr |
| Sep 12, 8:09 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Wright | 66 min |
| Sep 12, 8:18 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Renville | 57 min |
| Sep 12, 9:10 PM CDT | Flash Flood Warning | MPX | Wright | 3 hr |
| Sep 12, 9:10 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Sherburne, Wright | 65 min |
| Sep 12, 9:14 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, McLeod, Meeker, Renville | 61 min |
| Sep 12, 9:47 PM CDT | Flash Flood Warning | MPX | Anoka, Isanti, Sherburne | 3 hr |
| Sep 12, 9:54 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Sibley | 66 min |
| Sep 12, 10:11 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Wright | 64 min |
| Sep 12, 10:34 PM CDT | Flash Flood Warning | MPX | Chisago | 3 hr |
| Sep 12, 10:38 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Scott | 52 min |
| Sep 12, 10:41 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Ramsey | 35 min |
| Sep 12, 11:47 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault, Martin, Watonwan | 58 min |
| Sep 13, 12:26 AM CDT | Severe Thunderstorm Warning | MPX | Freeborn, Steele, Waseca | 64 min |
| Sep 13, 12:44 AM CDT | Severe Thunderstorm Warning | MPX | Faribault | 46 min |
| Sep 12, 11:54 PM CDT | Severe Thunderstorm Warning | MPX | Barron | 45 min |
| Sep 13, 12:23 AM CDT | Severe Thunderstorm Warning | MPX | Rusk | 37 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2005Severe Thunderstorm Warnings in Minnesota, 2005Every severe thunderstorm warning in 2005
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.