Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 82, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 5, 1994, 12:41 AM CDT for Dakota County, Thurston County, Nebraska. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Jul 5, 1994, 12:41 AM CDT (05:41 UTC)
- Expired
- Jul 5, 1994, 1:21 AM CDT
- In force
- 40 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Dakota County, NE, Thurston County, NE
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 5.7 hours before the alert went out and 107 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
- 3643 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1098 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 232 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 8.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSUX 050543 SVRSUX NEC043-173-050630- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX CITY IA 1241 AM CDT TUE JUL 5 1994 THE NATIONAL WEATHER SERVICE IN SIOUX CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 130 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST NEBRASKA ...DAKOTA COUNTY...THURSTON COUNTY AT 1242 AM CDT RADAR INDICATED SEVERE THUNDERSTORMS WERE LOCATED FROM 30 MILES NORTHWEST OF SIOUX CITY NEAR MASKELL NEBRASKA TO PENDER NEBRASKA. MOVEMENT WAS EAST AT 40 MILES AN HOUR. THE THUNDERSTORMS WILL MOVE TO WALTHILL AND SOUTH SIOUX CITY NEBRASKA BETWEEN 1245 AND 1 AM. REMEMBER...SEVERE THUNDERSTORMS CAN HPRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...DEADLY LIGHTNING...AND HEAVY RAINS THAT CAN QUICKLY FLOOD LOW LYING AREAS. IF YOU ARE IN THE PATH OF THIS STORM TAKE SHELTER IN A REINFORCED BUILDING IMMEDIATELY. HOPPES
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, 9:45 PM CDT, 2 hours 56 minutes before
SDZ050-063-050345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 941 PM CDT (841 PM MDT) MON JUL 4 1994 THUNDERSTORMS CONTINUED IN CHARLES MIX AND GREGORY COUNTIES OF SOUTHEAST SOUTH DAKOTA AT 940 PM CDT. THE THUNDERSTORMS WERE VARYING RAPIDLY IN INTENSITY AND WERE MOSTLY PRODUCING LOCALLY HEAVY RAINFALL ...SMALL HAIL...AND DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING NORTHEAST AT AROUND 20 MPH. AT 940 PM CDT THE STRONGEST STORM WAS IN NEBRASKA AND WILL MOVE INTO SOUTHERN GREGORY COUNTY SOUTH OF BONESTEEL...25 MILES WEST SOUTHWEST OF LAKE ANDES...BEFORE 10 PM CDT...AND SHOULD APPROACH BONESTEEL SHORTLY AFTER 10 PM. PEOPLE ARE ADVISED TO SEEK SHELTER WHEN THESE STRONG THUNDERSTORMS APPROACH. AT LEAST ONE STORM PRODUCED GOLFBALL SIZE HAIL THIS EVENING AND THERE IS THE POSSIBLITY OF ADDITIONAL SEVERE WEATHER DEVELOPMENT. SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS...DEADLY LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN. UMLAND
Local storm report, Jul 4, 10:19 PM CDT, 2 hours 22 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1020 PM CDT MON JUL 04 1994
STORM DATA FOR MONDAY JULY 04 1994
TIME COUNTY...LOCATION AND STATE CHARACTER OF STORM...DAMAGE
.......................................................................
857 PM CDT CHARLES MIX...GEDDES SD GOLFBALL SIZE HAIL
945 PM CDT SRN GREGORY...5S BONESTEEL SD NICKEL SIZE HAIL...HVY
RAIN
"
GRAHAMLocal storm report, Jul 4, 10:20 PM CDT, 2 hours 21 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1020 PM CDT MON JUL 04 1994
STORM DATA FOR MONDAY JULY 04 1994
TIME COUNTY...LOCATION AND STATE CHARACTER OF STORM...DAMAGE
.......................................................................
857 PM CDT CHARLES MIX...GEDDES SD GOLFBALL SIZE HAIL
945 PM CDT SRN GREGORY...5S BONESTEEL SD NICKEL SIZE HAIL...HVY
RAIN
GRAHAMSpecial weather statement, Jul 4, 10:45 PM CDT, 1 hour 56 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, 45 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, 31 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
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 12:16 AM CDT | Severe Thunderstorm Warning | FSD | Dixon | 44 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 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.