Alert archive / Iowa / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 70, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 24, 1993, 11:13 PM CDT for Cherokee County, Iowa. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Jul 24, 1993, 11:13 PM CDT (04:13 UTC)
- Expired
- Jul 24, 1993, 11:39 PM CDT
- In force
- 26 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Cherokee County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 4.2 hours before the alert went out and 169 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
- 2494 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 715 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 3.0
- Supercell composite
- 12.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 24, 10:05 PM CDT, 1 hour 8 minutes before
IAZ032-043-250400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1005 PM CDT SAT JUL 24 1993 ...HEAVY RAINS WILL MOVE INTO IDA COUNTY... AT 10 PM CDT A STRONG THUNDERSTORM PRODUCING HEAVY RAIN WAS JUST SOUTH OF MAPLETON...40 MILES SOUTHEAST OF SIOUX CITY. MOVEMENT WAS NORTHEAST AROUND 35 MILES AN HOUR. THIS STORM WILL CONTINUE TO PRODUCE HEAVY RAIN AS IT MOVES INTO BATTLE CREEK AND IDA GROVE BY 1045 PM. IN ADDITION TO THIS STORM...MORE HEAVY RAIN PRODUCING STORMS IN EAST CENTRAL NEBRASKA WILL BE MOVING INTO SOUTHERN MONONA COUNTY BY 1030 PM. THESE STORMS WILL TAKE THE SAME PATH AS THE FIRST STORM INCREASING THE THREAT FOR FLASH FLOODING. PEOPLE WHO LIVE ALONG THE MAPLE AND SOLDIER RIVERS AND SMALL STREAMS IN MONONA AND IDA COUNTIES SHOULD BE PREPARD TO MOVE TO HIGHER GROUND QUICKLY IF FLASH FLOODING IS OBSERVED OR A WARNING IS ISSUED. IRELAND
Special weather statement, Jul 24, 10:07 PM CDT, 1 hour 6 minutes before
IAZ032-043-250400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1005 PM CDT SAT JUL 24 1993 ...HEAVY RAINS WILL MOVE INTO IDA COUNTY... AT 10 PM CDT A STRONG THUNDERSTORM PRODUCING HEAVY RAIN WAS JUST SOUTH OF MAPLETON...40 MILES SOUTHEAST OF SIOUX CITY. MOVEMENT WAS NORTHEAST AROUND 35 MILES AN HOUR. THIS STORM WILL CONTINUE TO PRODUCE HEAVY RAIN AS IT MOVES INTO BATTLE CREEK AND IDA GROVE BY 1045 PM. IN ADDITION TO THIS STORM...MORE HEAVY RAIN PRODUCING STORMS IN EAST CENTRAL NEBRASKA WILL BE MOVING INTO SOUTHERN MONONA COUNTY BY 1030 PM. THESE STORMS WILL TAKE THE SAME PATH AS THE FIRST STORM INCREASING THE THREAT FOR FLASH FLOODING. PEOPLE WHO LIVE ALONG THE MAPLE AND SOLDIER RIVERS AND SMALL STREAMS IN MONONA AND IDA COUNTIES SHOULD BE PREPARD TO MOVE TO HIGHER GROUND QUICKLY IF FLASH FLOODING IS OBSERVED OR A WARNING IS ISSUED. IRELAND
Local storm report, Jul 24, 10:22 PM CDT, 51 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
1022 PM CDT SAT JUL 24 1993
STORM DATA FOR SAT JUL 24 1993
TIME COUNTY...LOCATION CHARACTER OF STORM...DAMAGE
645 PM CDT BUFFALO CO...10 SE STEPHAN 60 TO 70 MPH WIND LARGE TREE
LIMBS DOWN.
657 PM CDT HAND CO...14 S REE HEIGHTS 60 TO 70 MPH WIND SMALL TREES
BLOWN DOWN.
715 PM CDT HAND CO...7 S REE HEIGHTS ESTIMATED WIND 70 MPH DESTROYED
BARN.
717 PM CDT HAND CO...7 S MILLER 60 MPH WIND TREE LIMBS DOWN.
FREDERICKLocal storm report, Jul 24, 10:22 PM CDT, 51 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE HURON SD
1022 PM CDT SAT JUL 24 1993
STORM DATA FOR SAT JUL 24 1993
TIME COUNTY...LOCATION CHARACTER OF STORM...DAMAGE
645 PM CDT BUFFALO CO...10 SE STEPHAN 60 TO 70 MPH WIND LARGE TREE
LIMBS DOWN.
657 PM CDT HAND CO...14 S REE HEIGHTS 60 TO 70 MPH WIND SMALL TREES
BLOWN DOWN.
715 PM CDT HAND CO...7 S REE HEIGHTS ESTIMATED WIND 70 MPH DESTROYED
BARN.
717 PM CDT HAND CO...7 S MILLER 60 MPH WIND TREE LIMBS DOWN.
FREDERICKSpecial weather statement, Jul 24, 10:36 PM CDT, 37 minutes before
IAZ031-043-250445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1036 PM CDT SAT JUL 24 1993 ...THUNDERSTORMS WITH GUSTY WINDS WERE MOVING TOWARD WOODBURY COUNTY... AT 1035 PM CDT STRONG THUNDERSTORMS STRETCHED FROM WHITING TO ONAWA...WHITING IS 30 MILES SOUTHEAST OF SIOUX CITY. GUSTY WINDS WERE REPORTED BY THE MONONA COUNTY SHERIFF IN WHITING. MOVEMENT WAS NORTHEAST AT 35 MILES AN HOUR AND PEOPLE IN SLOAN AND HORNICK CAN EXPECT THE STORMS BY 1050 PM. ALONG WITH THE GUSTY WINDS HEAVY RAINS WERE ALSO REPORTED IN BOTH WHITING AND ONAWA. IRELAND
Special weather statement, Jul 24, 10:39 PM CDT, 34 minutes before
IAZ031-043-250445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 1036 PM CDT SAT JUL 24 1993 ...THUNDERSTORMS WITH GUSTY WINDS WERE MOVING TOWARD WOODBURY COUNTY... AT 1035 PM CDT STRONG THUNDERSTORMS STRETCHED FROM WHITING TO ONAWA...WHITING IS 30 MILES SOUTHEAST OF SIOUX CITY. GUSTY WINDS WERE REPORTED BY THE MONONA COUNTY SHERIFF IN WHITING. MOVEMENT WAS NORTHEAST AT 35 MILES AN HOUR AND PEOPLE IN SLOAN AND HORNICK CAN EXPECT THE STORMS BY 1050 PM. ALONG WITH THE GUSTY WINDS HEAVY RAINS WERE ALSO REPORTED IN BOTH WHITING AND ONAWA. IRELAND
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 11:04 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 23 min |
| Jul 24, 11:04 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 26 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1993Every severe thunderstorm warning in 1993
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.