Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 15, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at May 16, 1992, 8:20 PM CDT for Monona County, Iowa. It was in force for 49 min.
The area
The counties it named.
The facts
- Issued
- May 16, 1992, 8:20 PM CDT (01:20 UTC)
- Expired
- May 16, 1992, 9:09 PM CDT
- In force
- 49 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Monona County, IA
The nearest sounding before it
Omaha, NE (KOVN), launched 00:00Z, 1.3 hours before the alert went out and 88 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
- 544 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1809 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
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, May 16, 3:49 PM CDT, 4 hours 31 minutes before
SDZ001-002-006-008-009-013-014-162055- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 355 PM CDT SAT MAY 16 1992 ...A FROST ADVISORY HAS BEEN ISSUED FOR THE WEST 1/3 OF SOUTH DAKOTA FOR TONIGHT... A COLD FRONT WILL BRING COLD TEMPERATURES TO THE WEST 1/3 OF SOUTH DAKOTA TONIGHT. WIDESPREAD FROST CAN BE EXPECTED SO A FROST ADVISORY HAS BEEN ISSUED FOR TONIGHT. SOME LOW LYING AREAS MAY SEE TEMPERATURES BELOW FREEZING BY SUNRISE SUNDAY. PEOPLE WITH GARDENS SHOULD CONSIDER PROTECTING ANY PLANTS THAT CAN NOT WITHSTAND TEMPERATURES AROUND FREEZING. OUTDOOR POTTED PLANTS CAN BE BROUGHT IN FOR THE NIGHT. A GOOD WARMUP WILL BEGIN SUNDAY AND CONTINUE INTO MONDAY. KOSCIELSKI
Special weather statement, May 16, 4:07 PM CDT, 4 hours 13 minutes before
IAZ001-004-005-162215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 406 PM CDT SAT MAY 16 1992 ...A TORNADO WATCH IS IN EFFECT FOR A PORTION OF THE SIOUXLAND AREA UNTIL 10 PM CDT... AT 400 PM CDT...SHOWERS AND THUNDERSTORMS WERE RAPIDLY DEVELOPING ACROSS THE SIOUXLAND AREA AND WERE MOVING NORTHEAST AT 35 MILES AN HOUR. THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS THE SIOUXLAND AREA THIS EVENING. SOME OF THE STORMS COULD BECOME SEVERE AND A TORNADO IS POSSIBLE. STAY TUNED TO WEATHER RADIO OR LOCAL TELEVISION AND RADIO STATIONS FOR POSSIBLE WARNINGS. IF THREATENING WEATHER SHOULD APPROACH YOU... TAKE COVER ON THE LOWEST FLOOR OF A STURDY BUILDING. S QUINN
Special weather statement, May 16, 5:12 PM CDT, 3 hours 8 minutes before
IAZ001-004-005-162315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 510 PM CDT SAT MAY 16 1992 ...A TORNADO WATCH IS IN EFFECT FOR A PORTION OF THE SIOUXLAND AREA UNTIL 10 PM CDT... AT 503 PM CDT SCATTERED THUNDERSTORMS WERE SOUTH OF A LINE FROM CHEROKEE IOWA...50 MILES NORTHEAST OF SIOUX CITY TO PENDER NEBRASKA... 30 MILES SOUTHWEST OF SIOUX CITY. THE STRONGEST STORMS WERE NEAR BLENCOE AND CLIMBING HILL...45 TO 20 MILES SOUTHEAST OF SIOUX CITY. OTHER STRONGER STORMS WERE NEAR CHEROKEE AND CORRECTIONVILLE. THESE STORMS HAVE PRODUCE PEA SIZE HAIL...HEAVY RAIN AND GUSTY WINDS. THE STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR. IF YOU ARE IN THE PATH OF THESE STORMS OR SEE THREATENING WEATHER... TAKE SHELTER IN A REINFORCED BUILDING UNTIL THE STORMS HAVE PASSED. THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS EVENING...AND SOME OF THE STORMS COULD BECOME SEVERE. STAY TUNED TO WEATHER RADIO AND LOCAL TELEVISION AND RADIO STATIONS FOR POSSIBLE WARNINGS. S QUINN
Special weather statement, May 16, 6:20 PM CDT, 2 hours before
SDZ020-170115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 619 PM CDT SAT MAY 16 1992 ...STRONG THUNDERSTORMS MOVING INTO EXTREME SOUTHEAST SOUTH DAKOTA... AT 610 PM CDT STRONG THUNDERSTORMS WERE MOVING INTO EXTREME SOUTHEAST SOUTH DAKOTA ALONG THE MISSOURI RIVER. THESE THUDERSTORMS WERE 15 MILES WEST OF YANKTON SOUTH DAKOTA OVER THE LEWIS AND CLARK LAKE. THESE THUDNERSTORMS WERE MOVING EAST AT 25 MPH. VERY HEAVY RAIN...STRONG GUSTY WINDS AND SMALL HAIL ARE POSSIBLE WITH THESE THUNDERSTORMS. PEOPLE IN EXTREME SOUTHEAST SOUTH DAKOTA... ESPECAILY ALONG THE MISSOURI RIVER AND IN THE TOWNS OF YANKTON...VOLIN AND VERMILLION SHOULD BE ALERT UNTIL 730 PM CDT. BEHREND7
Local storm report, May 16, 7:35 PM CDT, 45 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX CITY IA
1934 PM CDT SAT MAY 16 1992
TIME EVENT
1845 PM DIXON COUNTY...NEAR CONCORD...2 LARGE COMMERICIAL
CHICKEN HOUSES DESTROYED
J. QUINNThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 7:13 PM CDT | Tornado Warning | FSD | Woodbury | 47 min |
| May 16, 7:38 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 37 min |
| May 16, 8:22 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 53 min |
| May 16, 8:22 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 47 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 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; the sounding from the Mesonet's radiosonde archive.