Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 83, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 28, 1992, 2:04 AM CDT for Woodbury County, Iowa; Dakota County, Nebraska. It was in force for 26 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 28, 1992, 2:04 AM CDT (07:04 UTC)
- Expired
- Jul 28, 1992, 2:30 AM CDT
- In force
- 26 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Woodbury County, IA, Dakota County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 28, 2:05 AM CDT | Hail 0.75 | Dakota, NE | |
| Jul 28, 2:05 AM CDT | Hail 0.75 | Woodbury, IA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Omaha, NE (KOVN), launched 00:00Z, 7.1 hours before the alert went out and 119 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
- 19 J/kg
- Mixed-layer CIN
- -329 J/kg
- Mixed-layer LCL
- 1684 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 140 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 280704
SVRSUX
IAC193-NEC043-280730-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX CITY IA
204 AM CDT TUE JUL 28 1992
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 230 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE WEST CENTRAL PART OF IOWA
WESTERN WOODBURY...
IN THE NORTHEAST PART OF NEBRASKA
EASTERN DAKOTA...
AT 202 AM A SEVERE THUNDERSTORM WAS LOCATED OVER SIOUX CITY IOWA.
MOVEMENT WAS SOUTHEAST AT 20 MPH.
THE STORMS WILL MOVE BETWEEN SERGEANT BLUFF AND SALIX IOWA BY
215 AM.
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.
ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORTS
OF SEVERE WEATHER TO THZE NATIONAL WEATHER SERVICE.
HOPPESWhat 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 27, 11:26 PM CDT, 2 hours 38 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-280500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1126 PM CDT MON JUL 27 1992 ...STRONG THUNDERSTORMS CONTINUED NORTH AND WEST OF SIOUX CITY... AT 1125 PM A STRONG THUNDERSTORMS WERE 30 MILES NORTHWEST OF SIOUX CITY FROM NEWCASTLE NEBRASKA TO SPINK SOUTH DAKOTA. THESE STORMS WILL MOVE THROUGH AKRON IOWA...ELK POINT SOUTH DAKOTA AND PONCA NEBRASKA BY MIDNIGHT. THESE STORMS WERBE MOVING SOUTHEAST AT 25 MILES AN HOUR AND ARE CAPABLE OF PRODUCING SMALL HAIL...WIND GUSTS TO 35 MILES AN HOUR DEADLY LIGHTNING AND HEAVY RAIN. DROZD
Special weather statement, Jul 27, 11:57 PM CDT, 2 hours 7 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-280535- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1157 PM CDT MON JUL 27 1992 ...STRONG THUNDERSTORMS CONTINUED NORTH AND WEST OF SIOUX CITY... AT 1155 PM STRONG THUNDERSTORMS STRETCHED FROM NORA SOUTH DAKOTA TO MARTINSBURG NEBRASKA WHICH IS 20 MILES WEST OF SIOUX CITY. THUNDERSTORMS HAVE BEEN REDEVELOPING OVER THE SAME AREA OF NORTHEAST NEBRASKA AND SOUTHEAST SOUTH DAKOTA. THE PERSISTENT HEAVY RAIN GENERATED BY THESE STORMS MAY CAUSE SOME MINOR FLOODING. THE STRONGEST STORM WILL LIKELY MOVE FROM NORA AND SPINK SOUTH DAKOTA INTO AKRON IOWA BY 1230 AM. THIS STORM WILL LIKELY PRODUCE SMALL HAIL AND VERY HEAVY RAIN. SIOUX CITY CAN EXPECT LIGHT RAIN BY 1 AM WITH A CHANCE OF A STRONGER THUNDERSTORM AFTER THAT TIME. DROZD
Special weather statement, Jul 28, 12:36 AM CDT, 1 hour 28 minutes before
SDZ019-020-280630- SPECIAL WEATHER STATEMENT AND SHORT-RANGE WEATHER FORECAST NATIONAL WEATHER SERVICE SIOUX FALLS SD 1235 AM CDT TUE JUL 28 1992 ...STRONG THUNDERSTORMS WERE LOCATED OVER EXTREME SOUTHEAST SOUTH DAKOTA... AT 1225 AM CDT...RADAR INDICATED THAT THUNDERSTORMS EXTENDED ALONG AND NORTH OF THE MISSOURI RIVER...FROM WEST OF YANKTON NEAR TYNDALL TO NEAR SIOUX CITY IOWA...AND NORTHWARD TO THE HAWARDEN IOWA VICINITY. THE STRONGEST STORMS WERE LOCATED BETWEEN YANKTON AND TYNDALL...AND NEAR VERMILLION. MOVEMENT OF THE STORMS WAS TO THE SOUTHEAST AT 20 MPH. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING HAIL...STRONG WINDS... VERY HEAVY RAIN AND DANGEROUS CLOUD TO GROUND LIGHTNING. THE STORMS WILL CONTINUE ALONG THE SOUTH DAKOTA/NEBRASKA BORDER DURING THE NEXT COUPLE OF HOURS...MOVING OUT OF THE AREA BY 230 AM CDT. OTHER THUNDERSTORMS WERE FURTHER WEST ALONG THE BORDER...BUT SHOULD REMAIN OUT OF SOUTH DAKOTA. PERSONS LIVING ALONG THE MISSOURI RIVER SHOULD BE ALERT FOR THESE STORMS AND SEEK SAFE SHELTER IF NECESSARY. GEELHART
Special weather statement, Jul 28, 12:42 AM CDT, 1 hour 22 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-280635- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1242 AM CDT TUE JUL 28 1992 ...STRONG THUNDERSTORMS CONTINUE ACROSS THE NORTHWEST PART OF THE SIOUXLAND AREA EARLY THIS MORNING... STRONG THUNDERSTORMS WERE LOCATED 30 MILES NORTHWEST OF SIOUX CITY NEAR SPINK SOUTH DAKOTA AND NORTH OF NEWCASTLE NEBRASKA NEAR THE SOUTH DAKOTA AND NEBRASKA BORDER AT 1239 AM. MOVEMENT WAS SOUTHEAST 20 MPH. SMALL HAIL AND HEAVY RAINS ARE LIKELY WITH THE STORMS. PERSISTENT HEAVY RAIN MAY CAUSE MINOR FLOODING IN SOME AREAS. THUNDERSTORMS CAN BE EXPECTED ACROSS FAR SOUTHEAST SOUTH DAKOTA AND ALONG THE MISSOURI RIVER THROUGH 130 AM. IF THREATENING WEATHER APPROACHES...YOU SHOULD BE PREPARED TO MOVE TO A SAFE PLACE QUICKLY. HOPPES
Special weather statement, Jul 28, 1:35 AM CDT, 29 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-280730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 134 AM CDT TUE JUL 28 1992 ...STRONG THUNDERSTORMS CONTINUE WEST OF SIOUX CITY EARLY THIS MORNING... THE STRONGEST THUNDERSTORM WAS LOCATED 10 MILES WEST OF NEWCASTLE NEBRASKA AT 132 AM. MOVEMENT WAS SOUTHEAST AT 20 MILES AN HOUR. THE STRONGEST THUNDERSTORMS ARE EXPECTED ACROSS NORTHEAST NEBRASKA FROM WEST OF NEWCASTLE TO ALLEBN NEBRASKA UNTIL 230 AM. SMALL HAIL AND HEAVY RAINS ARE LIKELY WITH THE STORMS. PERSISTENT HEAVY RAIN MAY CAUSE MINOR FLOODING IN SOME AREAS. IF THREATENING WEATHER APPROACHES...YOU SHOULD BE PREPARED TO MOVE TO A SAFE PLACE QUICKLY. HOPPES
Local storm report, Jul 28, 2:04 AM CDT, 0 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
205 AM CDT TUE JUL 28 1992
STORM DATA FOR MONDAY JULY 27 1992
TIME COUNTY...LOCATION AND STATE CHARACTER OF STORM...DAMAGE
.......................................................................
737 PM CDT TURNER...PARKER SD NICKEL SIZE HAIL AND HEAVY
RAIN
750 PM CDT TURNER...PARKER SD 1 INCH DIAMETER HAIL
859 PM CDT TURNER...CENTERVILLE SD PEA-SIZE HAIL AND VERY HEAVY
RAIN
1120 PM CDT CLAY...VERMILLION SD PEA-SIZE HAIL AND VERY HEAVY
RAIN
GEELHART
rNearby
Severe Thunderstorm Warnings in Iowa, 1992Severe Thunderstorm Warnings in Nebraska, 1992Every severe thunderstorm warning in 1992
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.