Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 131, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 13, 1997, 8:55 PM CDT for Saint Croix County, Wisconsin. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 13, 1997, 8:55 PM CDT (01:55 UTC)
- Expired
- Jul 13, 1997, 9:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 90 km from the middle of the area, began a volume at 01:56 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 13, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.9 hours before the alert went out and 349 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
- 2980 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 915 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMSP 140156 RRA
SVRMSP
WIC109-140245-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
855 PM CDT SUN JUL 13 1997
* SEVERE THUNDERSTORM WARNING FOR
ST CROIX COUNTY - WEST CENTRAL WISCONSIN
* UNTIL 945 PM CDT
* SOME LOCATIONS AFFECTED
HUDSON
NEW RICHMOND
SOMERSET
* AT 853 PM CDT DOPPLER RADAR INDICATED A LINE OF SEVERE STORMS
FROM STILLWATER TO HASTINGS. THE STORMS WERE MOVING EAST AT 45
MPH.
60 MPH WINDS WERE REPORTED AT WOODBURY AT 846 PM. THIS IS A
DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.
HAMEN
&What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 13, 7:46 PM CDT, 1 hour 9 minutes before
MNZ047-054-064-140145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHANHASSEN/TWIN CITIES MN 746 PM CDT SUN JUL 13 1997 THE SEVERE THUNDERSTORM WATCH NUMBER 599 HAS BEEN DISCONTINUED FOR THE FOLLOWING COUNTIES IN MINNESOTA... STEVENS LAC QUI PARLE YELLOW MEDICINE THE WATCH STILL REMAINS IN EFFECT FOR MUCH OF WESTERN MINNESOTA UNTIL 1000 PM TONIGHT. JVM
Special weather statement, Jul 13, 7:51 PM CDT, 1 hour 4 minutes before
MNZ047-054-064-140145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHANHASSEN/TWIN CITIES MN 746 PM CDT SUN JUL 13 1997 THE SEVERE THUNDERSTORM WATCH NUMBER 599 HAS BEEN DISCONTINUED FOR THE FOLLOWING COUNTIES IN MINNESOTA... STEVENS LAC QUI PARLE YELLOW MEDICINE THE WATCH STILL REMAINS IN EFFECT FOR MUCH OF WESTERN MINNESOTA UNTIL 1000 PM TONIGHT. JVM
Special weather statement, Jul 13, 8:45 PM CDT, 10 minutes before
MNZ048-055>057-065-073-074-082-091-140230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 845 PM CDT SUN JUL 13 1997 THE SEVERE THUNDERSTORM WATCH HAS BEEN CLEARED OR CANCELLED FOR THE FOLLOWING COUNTIES IN MINNESOTA... POPE SWIFT CHIPPEWA KANDIYOHI RENVILLE REDWOOD BROWN WATONWAN MARTIN THE WATCH STILL REMAINS IN EFFECT0 FOR A SMALL PORTION OF WEST CENTRL AND SOUTH CENTRAL MINNESOTA UNTIL 1000 PM. ANOTHER WATCH CONTINUES FOR EASTERN MINNESOTA UNTIL MIDNIGHT. AT 840 PM...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER PARTS OF WEST CENTRAL MINNESOTA. NO SEVERE WEATHER IS EXPECTED WITH THESE STORMS. JVM
Special weather statement, Jul 13, 8:47 PM CDT, 8 minutes before
MNZ048-055>057-065-073-074-082-091-140230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 845 PM CDT SUN JUL 13 1997 THE SEVERE THUNDERSTORM WATCH HAS BEEN CLEARED OR CANCELLED FOR THE FOLLOWING COUNTIES IN MINNESOTA... POPE SWIFT CHIPPEWA KANDIYOHI RENVILLE REDWOOD BROWN WATONWAN MARTIN THE WATCH STILL REMAINS IN EFFECT0 FOR A SMALL PORTION OF WEST CENTRL AND SOUTH CENTRAL MINNESOTA UNTIL 100|0 PM. ANOTHER WATCH CONTINUES FOR EASTERN MINNESOTA UNTIL MIDNIGHT. AT 840 PM...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER PARTS OF WEST CENTRAL MINNESOTA. NO SEVERE WEATHER IS EXPECTED WITH THESE STORMS. JVM
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 9:11 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 49 min |
| Jul 13, 10:35 PM CDT | Severe Thunderstorm Warning | MPX | Barron | 35 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1997Every severe thunderstorm warning in 1997
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.