Alert archive / Iowa / Tornado Warnings in 1994
Tornado Warning 6, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jun 12, 1994, 7:08 PM CDT for Dickinson County, Iowa. It was in force for 37 min.
The area
The counties it named.
The facts
- Issued
- Jun 12, 1994, 7:08 PM CDT (00:08 UTC)
- Expired
- Jun 12, 1994, 7:45 PM CDT
- In force
- 37 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Dickinson County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 0.1 hours before the alert went out and 205 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
- 1268 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 106 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 KDSM 130009 TORDSM IAC059-130045- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 708 PM CDT SUN JUN 12 1994 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST IOWA ...DICKINSON COUNTY AT 706 PM CDT...THE FORECAST OFFICE IN SIOUX FALLS REPORTED A TORNADO ON THE GROUND NEAR LAKE PARK...ABOUT 20 MILES NORTHWEST OF SPENCER. THE TORNADO WAS MOVING EAST SOUTHEAST AT 25 MILES AN HOUR. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTE~R IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS. CHB
What forecasters said that day
The local office's own words before this tornado 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 12, 5:57 PM CDT, 1 hour 11 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-130000- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE WATERLOO IA 555 PM CDT SUN JUN 12 1994 ...A LINE OF STRONG STORMS TO MOVE INTO NORTHEAST IOWA... AT 550 PM RADAR WAS SHOWING A LINE OF STRONG THUNDERSTORMS FROM NEAR CHARLES CITY...30 MILES EAST OF MASON CITY TO NEAR PARKERSBURG...20 MILES WEST OF WATERLOO. THESE STORMS WILL PRODUCE WINDS UP TO 50 MPH...1/4 TO 1/2 INCH HAIL...BRIEF VERY HEAVY RAINS AND FREQUENT DEADLY LIGHTNING. THESE STORMS WERE RACING TO THE EAST AT AROUND 40 MPH AND WILL AFFECT THE FOLLOWING TOWNS: CHARLES CITY - 550 PM THRU 610 PM CLARKSVILLE PARKERSBURG NEW HAMPTON - 610 PM THRU 625 PM TRIPOLI WAVERLY DENVER WATERLOO/CEDAR FALLS PEOPLE SHOULD MOVE INDOORS AS THESE STORMS APPROACH. A TORNADO WATCH REMAINS IN EFFECT FOR AREAS ALONG AND WEST OF I-35 TILL 10 PM CDT. STAY TUNED FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. COLLAR
Special weather statement, Jun 12, 6:20 PM CDT, 48 minutes before
IAZ003-004-014-130017-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
620 PM CDT SUN JUN 12 1994
...STRONG THUNDERSTORMS WILL MOVE INTO THE IOWA GREAT LAKES AREA...
STRONG THUNDERSTORMS OVER THE IOWA/MINNESOTA BORDER...BETWEEN SIOUX
FALLS AND ESTHERVILLE...ABOUT 80 MILES NORTHWEST OF SPENCER TO 30
MILES NORTHEAST OF SPENCER...WILL BE AFFECTING THE IOWA GREAT LAKES
AREA AFTER 630 PM CDT. THE STORMS WERE MOVING EAST AT 35 MILES AN
HOUR AND ARE CAPABLE OF PRODUCING FREQUENT DANGEROUS LIGHTNING...WIND
GUSTS TO 50 MILES AN HOUR...HAIL...AND HEAVY RAINS.
PEOPLE BOATING ON THE LAKES SHOULD GET TO SAFE HARBOR AS QUICKLY AS
POSSIBLE.
CHB
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Q6WWUSSpecial weather statement, Jun 12, 6:20 PM CDT, 48 minutes before
IAZ003-004-014-130017-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
620 PM CDT SUN JUN 12 1994
...STRONG THUNDERSTORMS WILL MOVE INTO THE IOWA GREAT LAKES AREA...
STRONG THUNDERSTORMS OVER THE IOWA/MINNESOTA BORDER...BETWEEN SIOUX
FALLS AND ESTHERVILLE...ABOUT 80 MILES NORTHWEST OF SPENCER TO 30
MILES NORTHEAST OF SPENCER...WILL BE AFFECTING THE IOWA GREAT LAKES
AREA AFTER 630 PM CDT. THE STORMS WERE MOVING EAST AT 35 MILES AN
HOUR AND ARE CAPABLE OF PRODUCING FREQUENT DANGEROUS LIGHTNING...WIND
GUSTS TO 50 MILES AN HOUR...HAIL...AND HEAVY RAINS.
PEOPLE BOATING ON THE LAKES SHOULD GET TO SAFE HARBOR AS QUICKLY AS
POSSIBLE.
CHB
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Q6WWUSSpecial weather statement, Jun 12, 6:35 PM CDT, 33 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-130100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 635 PM CDT SUN JUN 12 1994 ...SHOWERS AND STORMS TO SPREAD INTO THE HIGHWAY 150 CORRIDOR... AT 630 PM RADAR WAS SHOWING A LARGE AREA OF SHOWERS AND THUNDERSTORMS ACROSS NORTHEAST AND NORTH CENTRAL IOWA. THE STRONGEST STORMS WERE IN A LINE FROM 5 MILES SOUTHWEST OF DECORAH TO WATERLOO. THE STORMS ARE CAPABLE OF PRODUCING ISOLATED GUSTS UP TO 50 MPH ALONG WITH PEA SIZE HAIL...DEADLY LIGHTNING AND BRIEF HEAVY RAINS. THE STRONGEST STORMS WERE MOVING EAST AT 40 MPH AND WILL AFFECT THE FOLLOWING TOWNS: FAYETTE 635 PM - 700 PM WEST UNION OELWEIN INDEPENDENCE WAUKON 700 PM - 720 PM ELKADER MANCHESTER TRI STATE AREA INCLUDING DUBUQUE 720 - 740 PM FOR AREAS ALONG AND WEST OF HIGHWAY 63 AN AREA OF LIGHT RAIN SHOWERS WILL PERSIST THROUGH THE EVENING HOURS. A TORNADO WATCH REMAINS IN EFFECT FOR AREAS ALONG AND WEST OF I-35 TILL 10 PM. MORE THUNDERSTORMS WERE MOVING INTO FAR NORTHWEST IOWA AND WILL HAVE TO BE MONITORED FOR NORTH CENTRAL IOWA LATER THIS EVENING. STAY TUNED FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. COLLAR
Special weather statement, Jun 12, 6:37 PM CDT, 31 minutes before
IAZ006-007-008-009-010-011-016-017-018-019-026-027-028-029-038- 039-040-130100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 635 PM CDT SUN JUN 12 1994 ...SHOWERS AND STORMS TO SPREAD INTO THE HIGHWAY 150 CORRIDOR... AT 630 PM RADAR WAS SHOWING A LARGE AREA OF SHOWERS AND THUNDERSTORMS ACROSS NORTHEAST AND NORTH CENTRAL IOWA. THE STRONGEST STORMS WERE IN A LINE FROM 5 MILES SOUTHWEST OF DECORAH TO WATERLOO. THE STORMS ARE CAPABLE OF PRODUCING ISOLATED GUSTS UP TO 50 MPH ALONG WITH PEA SIZE HAIL...DEADLY LIGHTNING AND BRIEF HEAVY RAINS. THE STRONGEST STORMS WERE MOVING EAST AT 40 MPH AND WILL AFFECT THE FOLLOWING TOWNS: FAYETTE 635 PM - 700 PM WEST UNION OELWEIN INDEPENDENCE WAUKON 700 PM - 720 PM ELKADER MANCHESTER TRI STATE AREA INCLUDING DUBUQUE 720 - 740 PM FOR AREAS ALONG AND WEST OF HIGHWAY 63 AN AREA OF LIGHT RAIN SHOWERS WILL PERSIST THROUGH THE EVENING HOURS. A TORNADO WATCH REMAINS IN EFFECT FOR AREAS ALONG AND WEST OF I-35 TILL 10 PM. MORE THUNDERSTORMS WERE MOVING INTO FAR NORTHWEST IOWA AND WILL HAVE TO BE MONITORED FOR NORTH CENTRAL IOWA LATER THIS EVENING. STAY TUNED FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. COLLAR
Special weather statement, Jun 12, 6:49 PM CDT, 19 minutes before
IAZALL-130040- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 649 PM CDT SUN JUN 12 1994 ...TORNADO WATCH IN EFFECT FOR WESTERN AND CENTRAL IOWA UNTIL 1000 PM CDT THIS SUNDAY EVENING... AT 633 PM...INTENSE THUNDERSTORMS WERE MOVING INTO THE EXTREME NORTHWEST IOWA AROUND THE ROCK RAPIDS...SIBLEY AND SPIRIT LAKE AREA. THESE STORMS ARE LIKELY TO PRODUCE EXTREMELY HEAVY RAIN... HAIL...STRONG THUNDERSTORM WINDS AND NEARLY CONTINUOUS CLOUD TO GROUND LIGHTNING. PEOPLE IN THE PATH OF THESE STORMS SHOULD MONITOR CONDITIONS CLOSELY. AN AREA OF SHOWERS AND WIDELY SCATTERED THUNDERSTORMS WAS MOVING THROUGH NORTH CENTRAL INTO NORTHEAST IOWA. THE LEADING EDGE OF THESE SHOWERS AND STORMS EXTENDED FROM 20 MILES SOUTH OF WATERLOO NORTHEAST TO NEAR WAUKON...IN THE NORTHEAST CORNER OF IOWA. THE STORMS OVER NORTHWEST IOWA WERE MOVING EAST AT 20 TO 25 MILES AN HOUR WHILE THE SHOWERS AND STORMS OVER NORTHEAST AND NORTH CENTRAL IOWA WERE MOVING EAST AT 35 MILES AN HOUR. BARLOW
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 7:15 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 30 min |
| Jun 12, 7:45 PM CDT | Severe Thunderstorm Warning | DMX | Clay, Dickinson | 30 min |
| Jun 12, 8:15 PM CDT | Severe Thunderstorm Warning | DMX | Clay, Palo Alto | 30 min |
| Jun 12, 8:25 PM CDT | Tornado Warning | DMX | Palo Alto | 35 min |
| Jun 12, 8:55 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth | 35 min |
| Jun 12, 9:26 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 34 min |
| Jun 12, 9:37 PM CDT | Severe Thunderstorm Warning | DMX | Webster | 38 min |
| Jun 12, 9:41 PM CDT | Tornado Warning | DMX | Wright | 34 min |
| Jun 12, 9:56 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin | 34 min |
| Jun 12, 10:14 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 31 min |
| Jun 12, 10:58 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 47 min |
| Jun 12, 11:31 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 29 min |
| Jun 12, 11:38 PM CDT | Severe Thunderstorm Warning | DMX | Carroll | 22 min |
| Jun 13, 12:10 AM CDT | Severe Thunderstorm Warning | DMX | Adams | 14 min |
| Jun 13, 12:54 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas | 21 min |
| Jun 13, 1:03 AM CDT | Severe Thunderstorm Warning | DMX | Marion | 28 min |
| Jun 13, 1:03 AM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 28 min |
| Jun 13, 1:19 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 26 min |
Nearby
Tornado Warnings in Iowa, 1994Every tornado warning in 1994Tornadoes 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.