Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 38, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 23, 2007, 4:29 PM CDT for Saint Croix County, Wisconsin. It was in force for 61 min. 1 report 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 23, 2007, 4:29 PM CDT (21:29 UTC)
- Expired
- May 23, 2007, 5:30 PM CDT
- In force
- 61 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 96 km from the middle of the area, began a volume at 21:31 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 23, 5:04 PM CDT | TSTM WND DMG | Hammond, WI | 3-5 INCH BRANCHES DOWN. MEASURED WIND GUST OF 46MPH. |
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 23, 2:58 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.5 hours before the alert went out and 98 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
- 84 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 811 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 164 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 232130
SVRMPX
WIC109-232230-
/O.NEW.KMPX.SV.W.0038.070523T2129Z-070523T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
429 PM CDT WED MAY 23 2007
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN...
* UNTIL 530 PM CDT
* AT 429 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. THIS STORM
EXTENDED FROM THE NEW RICHMOND AREA...TO JUST SOUTHEAST OF HUDSON.
IT WAS MOVING NORTHEAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
BALDWIN...
HAMMOND...
DEER PARK...
GLENWOOD CITY...
ROBERTS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4488 9237 4486 9239 4487 9273 4521 9273
4520 9218 4500 9218 4498 9216 4487 9217
$$
DWE/TDK2 follow-up statements
000
WWUS53 KMPX 232205
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
503 PM CDT WED MAY 23 2007
WIC109-232230-
/O.CON.KMPX.SV.W.0038.000000T0000Z-070523T2230Z/
ST. CROIX WI-
503 PM CDT WED MAY 23 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR ST. CROIX COUNTY...
AT 502 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS.
THE STORMS WERE LOCATED FROM 6 MILES NORTHEAST OF BALDWIN TO 10
MILES NORTH OF FOREST. THE STORMS WERE MOVING EAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE HERSEY...FOREST...EMERALD...
CYLON...WOODVILLE...WILSON...HAMMOND...DEER PARK AND BALDWIN.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4488 9237 4486 9239 4486 9256 4522 9252
4520 9218 4500 9218 4498 9216 4486 9214
$$
DWE/TDK000
WWUS53 KMPX 232224
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
525 PM CDT WED MAY 23 2007
WIC109-232235-
/O.EXP.KMPX.SV.W.0038.000000T0000Z-070523T2230Z/
ST. CROIX WI-
525 PM CDT WED MAY 23 2007
...THE SEVERE THUNDERSTORM WARNING FOR ST. CROIX COUNTY EXPIRES AT
530 PM CDT...
SEVERE STORMS WERE MOVING OUT OF EASTERN ST CROIX COUNTY... AND
ADDITIONAL DEVELOPMENT IS NOT EXPECTED. THEREFORE THE SEVERE
THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 530 PM. STRONG AND
DAMAGING WINDS LIKELY OCCURED AS THE STORMS MOVED THROUGH.
LAT...LON 4488 9237 4486 9239 4486 9256 4522 9252
4520 9218 4500 9218 4498 9216 4486 9214
$$
DWE/TDKThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 3:22 PM CDT | Severe Thunderstorm Warning | MPX | Polk | 53 min |
| May 23, 4:07 PM CDT | Tornado Warning | MPX | Polk | 38 min |
| May 23, 4:24 PM CDT | Severe Thunderstorm Warning | MPX | Barron | 66 min |
| May 23, 4:31 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 59 min |
| May 23, 4:48 PM CDT | Tornado Warning | MPX | Polk | 27 min |
| May 23, 5:12 PM CDT | Severe Thunderstorm Warning | MPX | Dunn | 63 min |
| May 23, 5:27 PM CDT | Severe Thunderstorm Warning | MPX | Barron | 48 min |
| May 23, 6:04 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Rusk | 56 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2007Every severe thunderstorm warning in 2007
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.