Alert archive / Iowa / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 147, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Oct 6, 1994, 6:04 PM CDT for Monona County, Iowa. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Oct 6, 1994, 6:04 PM CDT (23:04 UTC)
- Expired
- Oct 6, 1994, 6:30 PM CDT
- In force
- 26 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Monona County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 280 m²/s²
- 0-3 km storm-relative helicity
- 295 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 062306 RRA SVRSUX IAC133-062330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX CITY IA 604 PM CDT THU OCT 6 1994 THE NATIONAL WEATHER SERVICE IN SIOUX CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL IOWA ...EASTERN MONONA COUNTY AT 602 PM CDT A SEVERE THUNDERSTORM WAS LOCATED IN NORTHERN HARRISON COUNTY NORTH OF LOGAN IOWA. MOVEMENT OF THE STORM WAS NORTHEAST AT 40 MILES AN HOUR. THE STORM WILL MOVE NEAR THE SOLDIER AND MOORHEAD IOWA AREAS BETWEEN 605 PM AND 630 PM CDT. LARGE HAIL AND GUSTY WIND TO 50 MILES AN HOUR ARE POSSIBLE WITH THIS STORM. 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.
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, Oct 6, 4:55 PM CDT, 1 hour 9 minutes before
SDZ040-062255- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 455 PM CDT THU OCT 6 1994 ...STRONG THUNDERSTORM IN WESTERN BROOKINGS COUNTY... AT 445 PM CDT WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM JUST WEST OF VOLGA...OR 15 ABOUT MILES WEST OF BROOKINGS. THE STORM WAS MOVING RAPIDLY TO THE NORTHEAST AT 35 MILES AN HOUR. THIS STORM LIKELY CONTAINS HEAVY RAINS...HAIL..AND GUSTY WINDS. PEOPLE IN BROOKINGS COUNTY SHOULD CONTINUE TO MONITOR THE LATEST WEATHER INFORMATION. AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY. TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST WEATHER INFORMATION. GRAHAM
Special weather statement, Oct 6, 5:02 PM CDT, 1 hour 2 minutes before
IAZ032-043-031-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 502 PM CDT THU OCT 6 1994 ...STRONG THUNDERSTORMS WILL BE SOUTHEAST OF SIOUX CITY... AT 5 PM CDT STRONG THUNDERSTORMS WERE MOVING ACROSS THE MISSOURI RIVER BETWEEN TEKAMAH NEBRASKA AND LITTLE SIOUX IOWA OR ABOUT 50 MILES SOUTH OF SIOUX CITY. MOVEMENT OF THE STORMS WAS NORTHEAST AT 30 MILES AN HOUR. PEOPLE AROUND MOORHEAD AND BLENCOE IOWA WILL SEE THE STORMS BETWEEN 515 PM AND 530 PM. PEA TO MARBLE SIZED HAIL AND WIND GUSTS TO 50 MILES AN HOUR ARE POSSIBLE WITH THESE STORMS. IF THREATENDING WEATHER APPROACHES THESE AREAS...TAKE SHELTER IMMEDIATELY AND LISTEN FOR LATER WEATHER STATEMENTS AND POSSIBLE WARNINGS. MICHELS
Special weather statement, Oct 6, 5:03 PM CDT, 1 hour 1 minute before
IAZ032-043-031-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 502 PM CDT THU OCT 6 1994 ...STRONG THUNDERSTORMS WILL BE SOUTHEAST OF SIOUX CITY... AT 5 PM CDT STRONG THUNDERSTORMS WERE MOVING ACROSS THE MISSOURI RIVER BETWEEN TEKAMAH NEBRASKA AND LITTLE SIOUX IOWA OR ABOUT 50 MILES SOUTH OF SIOUX CITY. MOVEMENT OF THE STORMS WAS NORTHEAST AT 30 MILES AN HOUR. PEOPLE AROUND MOORHEAD AND BLENCOE IOWA WILL SEE THE STORMS BETWEEN 515 PM AND 530 PM. PEA TO MARBLE SIZED HAIL AND WIND GUSTS TO 50 MILES AN HOUR ARE POSSIBLE WITH THESE STORMS. IF THREATENDING WEATHER APPROACHES THESE AREAS...TAKE SHELTER IMMEDIATELY AND LISTEN FOR LATER WEATHER STATEMENTS AND POSSIBLE WARNINGS. MICHELS
Special weather statement, Oct 6, 5:07 PM CDT, 57 minutes before
SDZ056-062310- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 507 PM CDT THU OCT 6 1994 ...STRONG THUNDERSTORM MOVING THROUGH MOODY COUNTY... AT 455 PM CDT A THUNDERSTORM WAS RAPIDLY DEVELOPING IN CENTRAL MOODY COUNTY. THE STORM WAS LOCATED ABOUT 25 MILES SOUTH OF BROOKINGS. THE STORM WAS QUICKLY MOVING TO THE NORTH AT 35 MILES AN HOUR. THE STORM LIKELY CONTAINS HEAVY RAIN...HAIL...AND GUSTY WINDS. ADDITIONAL STORMS WERE ALSO DEVELOPING ACROSS SOUTHEAST SOUTH DAKOTA. A TORNADO WATCH REMAINS IN EFFECT UNTIL 9 PM CDT FOR MUCH OF CENTRAL AND EASTERN SOUTH DAKOTA. AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY. TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST WEATHER INFORMATION. GRAHAM
Special weather statement, Oct 6, 5:15 PM CDT, 49 minutes before
SDZ020>023-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HURON SD 515 PM CDT THU OCT 6 1994 ...VERY STRONG THUNDERSTORMS MOVING THROUGH EAST CENTRAL AND NORTHEAST SOUTH DAKOTA... AT 510 PM CDT... SCATTERED THUNDERSTORMS PRODUCING VERY HEAVY RAIN... DANGEROUS LIGHTNING...AND GUSTY WINDS EXTENDED FROM JUST NORTHWEST OF WATERTOWN TO JUST EAST OF BROOKINGS. THESE STORMS WERE MOVING NORTH AT 40 MILES AN HOUR. STRONG THUNDERSTORMS...WITH WINDS UP TO 40 TO 50 MILES AN HOUR AND SMALL HAIL CAN BE EXPECTED IN THE WATERTOWN VICINITY BEFORE 545 PM CDT. PERSONS IN THE PATH OF THESE STORMS SHOULD TAKE SHELTER UNTIL THEY PASS. ...SOLOMON
Special weather statement, Oct 6, 5:19 PM CDT, 45 minutes before
SDZ020>023-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HURON SD 515 PM CDT THU OCT 6 1994 ...VERY STRONG THUNDERSTORMS MOVING THROUGH EAST CENTRAL AND NORTHEAST SOUTH DAKOTA... AT 510 PM CDT... SCATTERED THUNDERSTORMS PRODUCING VERY HEAVY RAIN... DANGEROUS LIGHTNING...AND GUSTY WINDS EXTENDED FROM JUST NORTHWEST OF WATERTOWN TO JUST EAST OF BROOKINGS. THESE STORMS WERE MOVING NORTH AT 40 MILES AN HOUR. STRONG THUNDERSTORMS...PWITH WINDS UP TO 40 TO 50 MILES AN HOUR AND SMALL HAIL CAN BE EXPECTED IN THE WATERTOWN VICINITY BEFORE 545 PM CDT. PERSONS IN THE PATH OF THESE STORMS SHOULD TAKE SHELTER UNTIL THEY PASS. ...SOLOMON
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 5:26 PM CDT | Severe Thunderstorm Warning | FSD | Monona | 34 min |
| Oct 6, 5:53 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 37 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.