Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 89, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 5, 1994, 2:05 AM CDT for Jackson County, Nobles County, Minnesota. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Jul 5, 1994, 2:05 AM CDT (07:05 UTC)
- Expired
- Jul 5, 1994, 2:45 AM CDT
- In force
- 40 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Jackson County, MN, Nobles County, MN
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 7.1 hours before the alert went out and 197 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
- 1005 J/kg
- Mixed-layer CIN
- -187 J/kg
- Mixed-layer LCL
- 1179 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KFSD 050708 RRA SVRFSD MNC063-105-050745- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 205 AM CDT TUE JUL 5 1994 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 245 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST MINNESOTA ...JACKSON COUNTY...EASTERN NOBLES COUNTY A BAND OF SEVERE THUNDERSTORMS WAS MOVING THROUGH NOBLES COUNTY WITH ONE OF THE MOST INTENSE CELLS 15 MILES SOUTHWEST OF WORTHINGTON AT 205 AM. THE SEVERE STORMS ARE MOVING NORTHEAST AT 25 MPH. PEOPLE IN WORTHINGTON SHOULD PREPARE FOR SEVERE WEATHER BY 215 AM WITH THE SEVERE STORMS MOVING TOWARDS OKABENA IN WESTERN JACKSON COUNTY BY 230 AM. IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD GET TO A REINFORCED SHELTER. A SEVERE THUNDERSTORM PRODUCES WINDS IN EXCESS OF 60 MPH...HAIL 3/4 INCH OR LARGER...DEADLY LIGHTNING...AND HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA. UMLAND
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 4, 10:45 PM CDT, 3 hours 20 minutes before
SDZ040-055-056-059>062-065>070-050445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1044 PM CDT MON JUL 4 1994 ...THUNDERSTORMS CONTINUE OVER PORTIONS OF SOUTH DAKOTA... AT 1042 PM CDT...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE SCATTERED SHOWERS AND THUNDERSTORMS OVER SOUTH-CENTRAL AND SOUTHEASTERN SOUTH DAKOTA. THE STRONGEST STORMS WERE LOCATED IN SOUTHERN GREGORY AND WESTERN CHARLES MIX COUNTIES. THE AREA OF SHOWERS WAS BASICALLY FROM SOUTH OF PIERRE TO NORTH-CENTRAL NEBRASKA AND EASTWARD TO A MITCHELL-GREENWOOD LINE. ALL OF THE PRECIPITATION WAS MOVING TO THE NORTHEAST AT 15 TO 20 MPH. NO SEVERE WEATHER IS EXPECTED WITH THESE STORMS AT THIS TIME...HOWEVER THEY ARE VARYING IN INTENSITY RAPIDLY. STRONG GUSTY WINDS... VERY HEAVY RAINFALL...DANGEROUS LIGHTNING...AND SMALL HAIL ARE ALL LIKELY WITH THE STRONGER STORMS. IF YOU PLAN TO BE OUTDOORS THIS EVENING...CHECK THE LATEST WEATHER INFORMATION 0AND KEEP A WEATHER EYE ON THE SKY. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST WEATHER INFORMATION. MG
Special weather statement, Jul 4, 11:56 PM CDT, 2 hours 9 minutes before
SDZ063>070-IAZ001-002-012-050555- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1152 PM CDT MON JUL 4 1994 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 400 AM CDT... AT 1150 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS EXTENDING FROM NEAR ARMOUR IN SOUTHERN DOUGLAS COUNTY SOUTH DAKOTA SOUTHWARD TO NEAR NORFOLK NEBRASKA. ANOTHER ISOLATED STRONG STORM WAS LOCATED EAST OF LECHTER IN SOUTHEASTERN SANBORN COUNTY. ALL OF THE STORMS WERE MOVING TO THE NORTHEAST AT 15 TO 20 MPH. WIND GUSTS OF UP TO 50 MPH WERE REPORTED 10 MILES SOUTH OF YANKTON AT 1150 PM. IF YOU LIVE IN EXTRME SOUTHEASTERN SOUTH DAKOTA OR NORTHWESTERN IOWA... YOU CAN EXPECT HEAVY RAINFALL...STRONG GUSTY WINDS...DANGEROUS LIGHTNING...AND SMALL HAIL AS THESE THUNDERSTORMS MOVE THROUGH YOUR AREA. A SEVERE THUNDERSTORM WATCH MEANS SEVERE THUNDERSTORMS ARE POSSIBLE IN AND NEAR THE WATCH AREA. PERSONS SHOULD WATCH FOR THREATENING WEATHER AND LISTEN TO NOAA WEATHER RADIO... COMMERCIAL RADIO OR TELEVISION FOR FURTHER INFORMATION. MG
Special weather statement, Jul 5, 12:10 AM CDT, 1 hour 55 minutes before
IAZ021-032-043-013-020-031-NEZ014-013-015-SDZ071-050615- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1208 AM CDT TUE JUL 5 1994 ...STRONG THUNDERSTORMS WILL MOVE INTO THE AREA... AT MIDNIGHT CDT STRONG THUNDERSTORMS WERE 50 MILES WEST OF SIOUX CITY IN NORTHEAST NEBRASKA. MOVEMENT WAS EAST AT 40 MILES AN HOUR. THESE STORMS WILL EXTEND FROM BERESFORD SOUTH DAKOTA TO MACY NEBRASKA OR 30 MILES SOUTH OF SIOUX CITY BY 1 AM. GUSTY WIND UP TO 55 MILES AN HOUR CAN BE EXPECTED WITH THESE STORMS. PEA TO MARBLE SIZED HAIL AND HEAVY DOWNPOURS ARE POSSIBLE WITH THESE STORMS. BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER APPROACHES. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE ENTIRE SIOUX CITY AREA UNTIL 4 AM CDT. MICHELS
Special weather statement, Jul 5, 12:58 AM CDT, 1 hour 7 minutes before
SDZ066-067-070-IAZ001-012-050700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1255 AM CDT TUE JUL 5 1994 ...A SEVER THUNDERSTORM WATCH IS IN EFFECT UNTIL 4 AM... THUNDERSTORMS CONTINUED MOVING ACROSS SOUTHEAST SOUTH DAKOTA AT 1250 AM AND WILL BE MOVING INTO NORTHWEST. WIND GUSTS OF 40 TO 50 MPH WERE COMMON ALONG A THUNDERSTORM GUST FRONT MOVING THROUGH LINCOLN AND UNTION COUNTES OF SD FROM CANTON TO ELK POINT. LOCALLY HEAVY RAIN AND FREQUENT LIGHTNING WILL ACCOMPANY THESE STORMS. THE GUST FRONT WILL BE MOVING INTO LYON AND SIOUX COUNTIES OF IOWA THROUGH 2 AM. WIND GUSTS OF 40 TO 50 MPH WITH BE COMMON ALONG THE LEADING EDGE OF THE THUNDERSTORMS...AND LOCALLY STRONGER GUSTS ARE POSSIBLE. PEOPLE IN THE COMMUNITIES OF ROCK RAPIDS AND ORANGE CITY CAN EXPECT THE STRONG WIND GUSTS TO MOVE INTO THEIR COMMUNITIES BY 1215 AM. AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY. TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST WEATHER INFORMATION. UMLAND
Special weather statement, Jul 5, 1:20 AM CDT, 45 minutes before
SDZ061-050720- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 118 AM CDT TUE JUL 5 1994 A VERY STRONG THUNDERSTORM WAS MOVING ACROSS NORTHERN MCCOOK COUNTY OF SOUTHEAST SOUTH DAKOTA AT 115 AM CDT. LOCALLY HEAVY RAIN...HAIL...AND DANGEROUS LIGHTNING WILL ACCOMPANY THIS STORM AS IT MOVES NORTHEAST AT 25 MPH. THE VERY STRONG THUNDERSTORM WAS ABOUT 20 MILES EAST OF MITCHELL NEAR SPENCER. THE STORM WILL MOVE OUT OF NORTHERN MCCOOK COUNTY AND INTO SOUTHWEST LAKE COUNTY BY 145 AM. SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN. UMLAND
Special weather statement, Jul 5, 1:49 AM CDT, 16 minutes before
IAZ001-012-050750- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 147 AM CDT TUE JUL 5 1994 THE SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR LYON AND SIOUX COUNTIES OF NORTHWEST IOWA. THE THUNDERSTORMS HAD DIMINISHED SHARPLY IN SIOUX COUNTY. A VERY STRONG THUNDERSTORM STILL LINGERED EAST OF ROCK RAPIDS...BUT WILL MOVE OUT OF THE COUNTY BY 3 AM AND IS NOT EXPECTED TO BE SEVERE. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UN:TIL 4 AM. UMLAND
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 1:39 AM CDT | Severe Thunderstorm Warning | FSD | Nobles, Rock | 51 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1994Every severe thunderstorm warning in 1994
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.