Alert archive / Iowa / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 59, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 17, 1994, 7:07 PM CDT for Cherokee County, Plymouth County, Iowa. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Jun 17, 1994, 7:07 PM CDT (00:07 UTC)
- Expired
- Jun 17, 1994, 7:45 PM CDT
- In force
- 38 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Cherokee County, IA, Plymouth County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 0.1 hours before the alert went out and 162 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
- 3440 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1393 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 78 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 180008 RRA SVRSUX IAC035-149-180100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX CITY IA 707 PM CDT FRI JUN 17 1994 THE NATIONAL WEATHER SERVICE IN SIOUX CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST IOWA ...SOUTHWESTERN CHEROKEE COUNTY ...SOUTHEASTERN PLYMOUTH COUNTY AT 705 PM A SEVERE THUNDERSTORM WAS OVER KINGSLEY IOWA...20 MILES EAST OF SIOUX CITY. MOVEMENT WAS EAST AT 15 MILES AN HOUR. THIS SEVERE THUNDERSTORM WILL EFFECT THE TOWN OF WASHTA BY 730 PM. KINGSLEY REPORTED POWER OUTAGES AT 655 PM. REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE 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. HUMPHREY &
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, Jun 17, 6:15 PM CDT, 52 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-180015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 614 PM CDT FRI JUN 17 1994 ...HAIL REPORTED NORTHEAST OF SIOUX CITY... AT 610 PM STRONG THUNDERSTORMS WERE FROM HARTLEY IOWA...65 MILES NORTHEAST OF SIOUX CITY TO OYENS IOWA...30 MILES NORTHEAST OF SIOUX CITY. THESE STORMS DROPPED PEA SIZE HAIL AT SHELDON AT 605 PM WITH VERY HEAVY RAIN. THE STORMS WERE MOVING EAST AT 15 MILES AN HOUR. THE STORMS WILL MOVE INTO SUTHERLAND...MARCUS AND CLEGHORN BY 640 PM. ANOTHER BAND OF STORMS STRETCHED FROM HINTON IOWA...10 MILES NORTHEAST OF SIOUX CITY TO WINNEBAGO NEBRASKA...20 MILES SOUTH OF SIOUX CITY. MOVEMENT WAS EAST AT 15 MILES AN HOUR. LAWTON...SALIX AND SLOAN IOWA WILL BE AFFECTED BY THESE STORMS BY 640 PM. PEA SIZE HAIL AND VERY HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM FOR OBRIEN...CHEROKEE AND PLYMOUTH CO"UNTY. HUMPHREY
Special weather statement, Jun 17, 6:18 PM CDT, 49 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-180015- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE SIOUX CITY IA 618 PM CDT FRI JUN 17 1994 ...HAIL REPORTED NORTHEAST OF SIOUX CITY... AT 610 PM STRONG THUNDERSTORMS WERE FROM HARTLEY IOWA...65 MILES NORTHEAST OF SIOUX CITY TO OYENS IOWA...30 MILES NORTHEAST OF SIOUX CITY. THESE STORMS DROPPED PEA SIZE HAIL AT SHELDON AT 605 PM WITH VERY HEAVY RAIN. THE STORMS WERE MOVING EAST AT 15 MILES AN HOUR. THE STORMS WILL MOVE INTO SUTHERLAND...MARCUS AND CLEGHORN BY 640 PM. ANOTHER BAND OF STORMS STRETCHED FROM HINTON IOWA...10 MILES NORTHEAST OF SIOUX CITY TO WINNEBAGO NEBRASKA...20 MILES SOUTH OF SIOUX CITY. MOVEMENT WAS EAST AT 15 MILES AN HOUR. LAWTON...SALIX AND SLOAN IOWA WILL BE AFFECTED BY THESE STORMS BY 640 PM. PEA SIZE HAIL AND VERY HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM FOR OBRIEN...CHEROKEE A,ND PLYMOUTH COUNTIES. HUMPHREY ...CORRECTED LAST LINE
Special weather statement, Jun 17, 6:18 PM CDT, 49 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-180015- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE SIOUX CITY IA 618 PM CDT FRI JUN 17 1994 ...HAIL REPORTED NORTHEAST OF SIOUX CITY... AT 610 PM STRONG THUNDERSTORMS WERE FROM HARTLEY IOWA...65 MILES NORTHEAST OF SIOUX CITY TO OYENS IOWA...30 MILES NORTHEAST OF SIOUX CITY. THESE STORMS DROPPED PEA SIZE HAIL AT SHELDON AT 605 PM WITH VERY HEAVY RAIN. THE STORMS WERE MOVING EAST AT 15 MILES AN HOUR. THE STORMS WILL MOVE INTO SUTHERLAND...MARCUS AND CLEGHORN BY 640 PM. ANOTHER BAND OF STORMS STRETCHED FROM HINTON IOWA...10 MILES NORTHEAST OF SIOUX CITY TO WINNEBAGO NEBRASKA...20 MILES SOUTH OF SIOUX CITY. MOVEMENT WAS EAST AT 15 MILES AN HOUR. LAWTON...SALIX AND SLOAN IOWA WILL BE AFFECTED BY THESE STORMS BY 640 PM. PEA SIZE HAIL AND VERY HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM FOR OBRIEN...CHEROKEE A,ND PLYMOUTH COUNTIES. HUMPHREY ...CORRECTED LAST LINE
Special weather statement, Jun 17, 6:47 PM CDT, 20 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-180050- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 647 PM CDT FRI JUN 17 1994 ...STRONG THUNDERSTORMS WERE MOVING EAST THROUGH THE AREA... AT 642 PM STRONG THUNDERSTORMS STRETCHED FROM HARTLEY IOWA...65 MILES NORTHEAST OF SIOUX CITY TO MARCUS...40 MILES NORTHEAST OF SIOUX CITY. PEA SIZE HAIL AND 40 MILE AN HOUR WINDS WAS REPORTED AT MARCUS AT 636 PM. THE STORMS WERE MOVING EAST AT 15 MILES AN HOUR. SUTHERLAND...LARRABEE AND MERIDIAN IOWA WILL BE AFFECTED BY THESE STORMS THROUGH 715 PM. STORMS ALSO WERE LOCATED FROM JUST WEST OF KINGSLEY IOWA...20 MILES EAST OF SIOUX CITY TO WINNEBAGO NEBRASKA...20 MILES SOUTH OF SIOUX CITY. THESE STORMS WERE ALSO MOVING EAST AT 15 MILES AN HOUR. KINGSLEY...PIERSON AND SALIX IOWA WILL BE AFFECTED BY THESE STORMS THROUGH 715 PM. A THIRD STORM WAS OVER PENDER NEBRASKA...30 MILES SOUTHWEST OF SIOUX CITY MOVING EAST AT 15 MILES AN HOUR. THIS STORM WILL MOVE INTO ROSALIE NEBRASKA BY 715 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM FOR OBRIEN...CHEROKEE AND PLYMOUTH COUNTIES. HUMPHREY
Special weather statement, Jun 17, 6:48 PM CDT, 19 minutes before
IAZ013-020-021-031-032-043-NEZ013>015-SDZ071-180050- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 647 PM CDT FRI JUN 17 1994 ...STRONG THUNDERSTORMS WERE MOVING EAST THROUGH THE AREA... AT 642 PM STRONG THUNDERSTORMS STRETCHED FROM HARTLEY IOWA...65 MILES NORTHEAST OF SIOUX CITY TO MARCUS...40 MILES NORTHEAST OF SIOUX CITY. PEA SIZE HAIL AND 40 MILE AN HOUR WINDS WAS REPORTED AT MARCUS AT 636 PM. THE STORMS WERE MOVING EAST AT 15 MILES AN HOUR. SUTHERLAND...LARRABEE AND MERIDIAN IOWA WILL BE AFFECTED BY THESE STORMS THROUGH 715 PM. STORMS ALSO WERE LOCATED FROM JUST WEST OF KINGSLEY IOWA...20 MILES EAST OF SIOUX CITY TO WINNEBAGO NEBRASKA...20 MILES SOUTH OF SIOUX CITY. THESE STORMS WERE ALSO MOVING EAST AT 15 MILES AN HOUR. KINGSLEY...PIERSON AND SALIX IOWA WILL BE AFFECTED BY THESE STORMS THROUGH 715 PM. A THIRD STORM WAS OVER PENDER NEBRASKA...30 MILES SOUTHWEST OF SIOUX CITY MOVING EAST AT 15 MILES AN HOUR. THIS STORM WILL MOVE INTO ROSALIE NEBRASKA BY 715 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM FOR OBRIEN...CHEROKEE AND PLYMOUTH COUNTIES. HUMPHREY
Special weather statement, Jun 17, 6:57 PM CDT, 10 minutes before
MNZ071-072-080-081-089-090-097-098-IAZ001-002-012-180200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 655 PM CDT FRI JUN 17 1994 ...SEVERE THUNDERSTORM WATCH CANCELLED FOR SOUTHWEST MINNESOTA AND FAR NORTHWEST IOWA... AT 650 PM CDT STRONG THUNDERSTORMS HAVE MOVED SOUTHEAST OF MOST OF SOUTHWEST MINNESOTA AND FAR NORTHWEST IOWA AND THE SEVERE THREAT HAS DIMINISHED. HOWEVER SCATTERED SHOWERS AND A FEW THUNDERSTORMS SHOULD CONTINUE UNTIL AFTER SUNSET AND MAY ADD TO HEAVY RAINS THAT HAVE ALREADY OCCURRED IN SOME AREAS. URBAN FLOODING WAS REPORTED IN WINDOM MINNESOTA AROUND 6 PM. SOME SMALL STREAMS COULD ALSO RISE OUT OF THEIR BANKS THIS EVENING IN SOUTHWEST MINNESOTA...PARTS OF NORTHWEST IOWA...AND ALSO IN BROOKINGS COUNTY IN EASTCENTRAL SOUTH DAKOTA WHERE UP TO 4 INCHES OF RAIN WAS REPORTED TODAY. RYRHOLM
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 8:28 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 32 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 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.