Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 4, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Apr 25, 1994, 5:58 PM CDT for Dixon County, Nebraska. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Apr 25, 1994, 5:58 PM CDT (22:58 UTC)
- Expired
- Apr 25, 1994, 6:45 PM CDT
- In force
- 47 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Dixon County, NE
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.0 hours before the alert went out and 137 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
- 915 J/kg
- Mixed-layer CIN
- -335 J/kg
- Mixed-layer LCL
- 1004 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 268 m²/s²
- 0-3 km storm-relative helicity
- 302 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 KSUX 252259 SVRSUX NEC051-252345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX CITY IA 558 PM CDT MON APR 25 1994 THE NATIONAL WEATHER SERVICE IN SIOUX CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST NEBRASKA ...DIXON COUNTY AT 557 PM CDT GOLFBALL SIZE HAIL FELL AT EMERSON NEBRASKA. MOVEMENT WAS NORTHWEST AT 40 MILES AN HOUR. THE THUNDERSTORM WILL MOVE INTO ALLEN AND MARTINSBURG NEBRASKA BETWEEN 615 AND 630 PM. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITHOUT WARNING. IF A TORNADO IS SIGH>TED GO TO AN INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR DEPRESSION...COVER YOUR HEAD WITH 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
Local storm report, Apr 25, 1:16 PM CDT, 4 hours 42 minutes before
STORM REPORT NATIONAL WEATHER SERVICE HURON SD 115 PM CDT MON APR 25 1994 STORM DATA FOR APR 25 1994 TIME COUNTY...LOCATION CHARACTER OF STORM...DAMAGE 538 AM CDT GRANT VCO...9 SW MARVIN 3/4 INCH HAIL...NWS SPOTTER STOREY
Special weather statement, Apr 25, 2:18 PM CDT, 3 hours 40 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-252015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 217 PM CDT MON APR 25 1994 ...A TORNADO WATCH IS IN EFFECT WEST OF SIOUX CITY... A TORNADO WATCH HAS BEEN ISSUED FOR SOUTHEAST SOUTH DAKOTA AND NORTHEAST NEBRASKA. THE WATCH IS IN EFFECT UNTIL 10 PM THIS EVENING. ALTHOUGH NO THUNDERTORMS ARE OCCURING IN THE AREA AT THE PRESENT TIME CONDITIONS ARE FAVAROBLE FOR STRONG THUNDERSTORMS TO DEVELOP VERY QUICKLY. THE THUNDERSTORMS THAT DO DEVELOPE WILL HAVE THE CAPABILITY OF PRODUCING TORNADOES. KEEP MONITORING NOAA WEATHER RADIO...LOCAL TELEVISION STATIONS AND RADIO STATIONS FOR THE LATEST WEATHER DEVELOPMENTS. HUMPHREY
Special weather statement, Apr 25, 3:03 PM CDT, 2 hours 55 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-252115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 302 PM CDT MON APR 25 1994 ...A TORNADO WATCH IS IN EFFECT FOR PARTS OF THE AREA... A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN THE SIOXLAND AREA...UNION IN SOUTH DAKOTA...DIXON...DAKOTA AND THURSTON IN NEBRASKA AND SIOUX IN IOWA. ALTHOUGH NO THUNDERTORMS WERE OCCURING IN THE WATCH AREA...CONDITIONS ARE RIPE FOR RAPID DEVELOPMENT OF SEVERE WEATHER. TORNADOES...LARGE HAIL AND DAMAGING WINDS ARE ALL POSSIBLE WITH DEVELOPING THUNDERSTORMS THIS AFTERNOON AND EVENING. KEEP MONITORING NOAA WEATHER RADIO...LOCAL TELEVISION STATIONS AND RADIO STATIONS FOR THE LATEST WEATHER DEVELOPMENTS. HUMPHREY
Special weather statement, Apr 25, 3:07 PM CDT, 2 hours 51 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-252115- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE SIOUX CITY IA 306 PM CDT MON APR 25 1994 ...A TORNADO WATCH IS IN EFFECT FOR PARTS OF THE AREA... A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES IN THE SIOUXLAND AREA...UNION IN SOUTH DAKOTA...DIXON...DAKOTA AND THURSTON IN NEBRASKA AND SIOUX IN IOWA. ALTHOUGH NO THUNDERTORMS WERE OCCURING IN THE WATCH AREA...CONDITIONS ARE RIPE FOR RAPID DEVELOPMENT OF SEVERE WEATHER. TORNADOES...LARGE HAIL AND DAMAGING WINDS ARE ALL POSSIBLE WITH DEVELOPING THUNDERSTORMS THIS AFTERNOON AND EVENING. KEEP MONITORING NOAA WEATHER RADIO...LOCAL TELEVISION STATIONS AND RADIO STATIONS FOR THE LATEST WEATHER DEVELOPMENTS. HUMPHREY ...CORRECTED
Special weather statement, Apr 25, 4:12 PM CDT, 1 hour 46 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-252215- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE SIOUX CITY IA 411 PM CDT MON APR 25 1994 ...STRONG THUNDERSTORMS WERE MOVING TOWARD NORTHEAST NEBRASKA... AT 410 PM CDT STRONG THUNDERSTORMS WERE MOVING NORTHEAST FROM CENTRAL NEBRASKA. THE STORMS WILL BE ENTERING DIXON...THURSTON AND DAKOTA COUNTIES AROUND 6 PM. THESE COUNTIES ARE UNDER A TORNADO WATCH UNTIL 10 PM SO PEOPLE IN THESE AREAS SHOULD BE READY TO TAKE SHELER IF THREATENING WEATHER APPROACHES. THE ATMOSPHERE IS RIPE FOR EXPLOSIVE THUNDERSTORM DEVELOPMENT SO BE ON THE LOOKOUT FOR RAPIDLY CHANGING WEATHER. MONITOR NOAA WEATHER RADIO...LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST WEATHER INFORMATION. HUMPHREY
Special weather statement, Apr 25, 5:21 PM CDT, 37 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-252315- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE SIOUX CITY IA 520 PM CDT MON APR 25 1994 ...STRONG THUNDERSTORMS WILL MOVE INTO THE AREA... AT 518 PM CDT STRONG THUNDERSTORMS WERE LOCATED SOUTH OF SIOUX CITY OR FROM BURT COUNTY NEBRASKA TO MONONA COUNTY IOWA. MOVEMENT WAS NORTHWEST AT 40 MILES AN HOUR. THE THUNDERSTORMS WILL REACH PENDER AND THURSTON NEBRASKA AND MAPLETON IOWA BY 615 PM. THE STORMS WILL LIKELY PRODUCE HAIL AND STRONG WINDS. IF THREATENING WEATHER APPROACHES YOU SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY. HOPPES
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 5:38 PM CDT | Severe Thunderstorm Warning | FSD | Thurston | 52 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.