Alert archive / Minnesota / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 41, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 3, 1993, 8:43 AM CDT for Redwood County, Minnesota. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Jul 3, 1993, 8:43 AM CDT (13:43 UTC)
- Expired
- Jul 3, 1993, 9:30 AM CDT
- In force
- 47 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Redwood County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 1.7 hours before the alert went out and 140 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1374 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 137 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 031345 SVRMSP MNC127-031430- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MINNEAPOLIS MN 843 AM CDT SAT JUL 3 1993 THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST MINNESOTA ...REDWOOD COUNTY AT 840 AM...A SEVERE THUNDERSTORM WAS OCCURRING NEAR WALNUT GROVE IN SOUTHERN REDWOOD COUNTY OF SOUTHWEST MINNESOTA...ABOUT 25 MILES SOUTHWEST OF THE CITY OF REDWOOD FALLS. LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. MOVEMENT WAS TO THE EAST AT 35 MILES AN HOUR. CITIES AND TOWNS INCLUDED IN THIS WARNING ARE WALNUT GROVE... REVERE...LAMBERTON...WABASSO...AND REDWOOD FALLS. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...LARGE HAIL... DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM. PEOPLE IN MOBILE HOMES SHOULD GO TO A STORM SHELTER. PAULSON
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 3, 5:36 AM CDT, 3 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 530 AM CDT SAT JULY 3 1993 ...SEVERE THUNDERSTORM AND TORNADO OUTBREAK EXPECTED THIS AFTERNOON AND TONIGHT IN WESTERN MINNESOTA... THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY MISSOURI IS FORECASTING AN OUTBREAK OF SEVERE THUNDERSTORMS AND TORNADOES THIS AFTERNOON AND TONIGHT OVER THE NORTHERN PLAINS AND UPPER MISSISSIPPI VALLEY...INCLUDING THE WESTERN PORTION OF MINNESOTA WEST OF A LINE FROM INTERNATIONAL FALLS TO MANKATO. AN INTENSE SPRINGLIKE STORM SYSTEM OVER THE ROCKIES WILL MOVE EAST INTO THE PLAINS TODAY AND TONIGHT RESULTING IN AN UNUSUAL JULY OUTBREAK OF SEVERE THUNDERSTORMS AND TORNADOES. A DEEPENING LOW PRESSURE CENTER OVER WYOMING THIS MORNING WILL MOVE TO NORTH DAKOTA BY TONIGHT AS A COLD FRONT SWEEPS ACROSS THE NORTHERN AND CENTRAL PLAINS. STRONG SOUTHERLY WINDS OVER THE PLAINS STATES WILL BRING VERY MOIST AND UNSTABLE AIR NORTHWARD INTO THE NORTHERN PLAINS SETTING THE STAGE FOR A CLASH OF AIR MASSES. AT THE SAME TIME...A STRONG SOUTHWESTERLY UPPER LEVEL JET STREAM WILL BE MOVING ACROSS THE CENTRAL ROCKIES AND NORTHERN PLAINS DURING THE AFTERNOON PROVIDING A MECHANISM FOR THE RAPID DEVELOPMENT OF THUNDERSTORMS. ALL OF THESE INGREDIENTS ARE EXPECTED TO RESULT IN THE EXPLOSIVE DEVELOPMENT OF SEVERE THUNDERSTORMS THIS AFTERNOON...INCLUDING THE THREAT OF TORNADOES....OVER PARTS OF NEBRASKA..SOUTH DAKOTA..AND NORTH DAKOTA. THE SEVERE THUNDERSTORMS AND TORNADOES ARE EXPECTED TO SPREAD INTO MINNESOTA AND NORTHWEST IOWA BY TONIGHT. THERE IS A GOOD CHANCE OF STRONG AND DAMAGING TORNADOES IN PARTS OF NEBRAKSA..SOUTH DAKOTA..NORTH DAKOTA..WESTERN MINNESOTA AND NORTHWEST IOWA AS THE STORM SYSTEM MOVES EASTWARD DURING THE AFTERNOON AND EVENING HOURS. ALL PERSONS IN THE THREATENED AREA ARE URGED TO REVIEW SAFETY RULES ...AND LISTEN TO RADIO..TV..OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WATCHES OR WARNcINGS. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION FOR THE AFFECTED AREAS AND SHOULD BE MONITORED CLOSELY.
Special weather statement, Jul 3, 5:36 AM CDT, 3 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 530 AM CDT SAT JULY 3 1993 ...SEVERE THUNDERSTORM AND TORNADO OUTBREAK EXPECTED THIS AFTERNOON AND TONIGHT IN WESTERN MINNESOTA... THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY MISSOURI IS FORECASTING AN OUTBREAK OF SEVERE THUNDERSTORMS AND TORNADOES THIS AFTERNOON AND TONIGHT OVER THE NORTHERN PLAINS AND UPPER MISSISSIPPI VALLEY...INCLUDING THE WESTERN PORTION OF MINNESOTA WEST OF A LINE FROM INTERNATIONAL FALLS TO MANKATO. AN INTENSE SPRINGLIKE STORM SYSTEM OVER THE ROCKIES WILL MOVE EAST INTO THE PLAINS TODAY AND TONIGHT RESULTING IN AN UNUSUAL JULY OUTBREAK OF SEVERE THUNDERSTORMS AND TORNADOES. A DEEPENING LOW PRESSURE CENTER OVER WYOMING THIS MORNING WILL MOVE TO NORTH DAKOTA BY TONIGHT AS A COLD FRONT SWEEPS ACROSS THE NORTHERN AND CENTRAL PLAINS. STRONG SOUTHERLY WINDS OVER THE PLAINS STATES WILL BRING VERY MOIST AND UNSTABLE AIR NORTHWARD INTO THE NORTHERN PLAINS SETTING THE STAGE FOR A CLASH OF AIR MASSES. AT THE SAME TIME...A STRONG SOUTHWESTERLY UPPER LEVEL JET STREAM WILL BE MOVING ACROSS THE CENTRAL ROCKIES AND NORTHERN PLAINS DURING THE AFTERNOON PROVIDING A MECHANISM FOR THE RAPID DEVELOPMENT OF THUNDERSTORMS. ALL OF THESE INGREDIENTS ARE EXPECTED TO RESULT IN THE EXPLOSIVE DEVELOPMENT OF SEVERE THUNDERSTORMS THIS AFTERNOON...INCLUDING THE THREAT OF TORNADOES....OVER PARTS OF NEBRASKA..SOUTH DAKOTA..AND NORTH DAKOTA. THE SEVERE THUNDERSTORMS AND TORNADOES ARE EXPECTED TO SPREAD INTO MINNESOTA AND NORTHWEST IOWA BY TONIGHT. THERE IS A GOOD CHANCE OF STRONG AND DAMAGING TORNADOES IN PARTS OF NEBRAKSA..SOUTH DAKOTA..NORTH DAKOTA..WESTERN MINNESOTA AND NORTHWEST IOWA AS THE STORM SYSTEM MOVES EASTWARD DURING THE AFTERNOON AND EVENING HOURS. ALL PERSONS IN THE THREATENED AREA ARE URGED TO REVIEW SAFETY RULES ...AND LISTEN TO RADIO..TV..OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WATCHES OR WARNINGS. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION FOR THE AFFECTED AREAS AND SHOULD BE MONITORED CLOSELY.
Special weather statement, Jul 3, 8:36 AM CDT, 7 minutes before
MNZ017-031445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 836 AM CDT SAT JUL 3 1993 ...A LINE OF VERY STRONG THUNDERSTORMS MOVING ACROSS SOUTHWEST MINNESOTA... AT 830AM A LINE OF VERY STRONG THUNDERSTORMS WAS LOCATED FROM NEAR WABASSO AND WALNUT GROVE IN REDWOOD COUNTY THEN TO NEAR THE SLAYTON AREA OF MURRAY COUNTY TO NEAR ADRIAN IN NOBLES COUNTY....OR MORE GENERALLY FROM NEAR REDWOOD FALLS TO WORTHINGTON. THIS LINE WAS MOVING EAST AROUND 30 MPH. PERSONS ACROSS SOUTHERN REDWOOD COUNTY IN THE LAMBERTON...WADNA AREA CAN EXPECT WINDS TO AROUND 50 MPH AS WELL AS SOME HAIL BY 845 AM. IF THREATENING WEATHER APPROACHES...TAKE SHELTER. PAULSON
Special weather statement, Jul 3, 8:37 AM CDT, 6 minutes before
MNZ017-031445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MINNEAPOLIS MN 836 AM CDT SAT JUL 3 1993 ...A LINE OF VERY STRONG THUNDERSTORMS MOVING ACROSS SOUTHWEST MINNESOTA... AT 830AM A LINE OF VERY STRONG THUNDERSTORMS WAS LOCATED FROM NEAR WABASSO AND WALNUT GROVE IN REDWOOD COUNTY THEN TO NEAR THE SLAYTON AREA OF MURRAY COUNTY TO NEAR ADRIAN IN NOBLES COUNTY....OR MORE GENERALLY FROM NEAR REDWOOD FALLS TO WORTHINGTON. THIS LINNE WAS MOVING EAST AROUND 30 MPH. PERSONS ACROSS SOUTHERN REDWOOD COUNTY IN THE LAMBERTON...WADNA AREA CAN EXPECT WINDS TO AROUND 50 MPH AS WELL AS SOME HAIL BY 845 AM. IF THREATENING WEATHER APPROACHES...TAKE SHELTER. PAULSON
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 10:47 AM CDT | Severe Thunderstorm Warning | MPX | Martin, Watonwan | 43 min |
| Jul 3, 11:34 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault, Le Sueur, Waseca | 56 min |
| Jul 3, 12:06 PM CDT | Severe Thunderstorm Warning | MPX | Rice, Steele | 39 min |
| Jul 3, 12:37 PM CDT | Severe Thunderstorm Warning | MPX | Dodge | 38 min |
| Jul 3, 1:55 PM CDT | Severe Thunderstorm Warning | MPX | Mower | 50 min |
| Jul 3, 2:24 PM CDT | Severe Thunderstorm Warning | MPX | Fillmore, Winona | 36 min |
| Jul 3, 2:48 PM CDT | Severe Thunderstorm Warning | MPX | Houston, Winona | 42 min |
| Jul 3, 3:05 PM CDT | Severe Thunderstorm Warning | MPX | Fillmore | 40 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1993Every severe thunderstorm warning in 1993
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.