Alert archive / Iowa / Tornado Warnings in 1991
Tornado Warning 21, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at Jun 14, 1991, 8:24 PM CDT for Mills County, Iowa. It was in force for 36 min. 1 report 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
- Jun 14, 1991, 8:24 PM CDT (01:24 UTC)
- Expired
- Jun 14, 1991, 9:00 PM CDT
- In force
- 36 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Mills County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 14, 8:50 PM CDT | Thunderstorm Wind 57 | Mills, 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, 1.4 hours before the alert went out and 70 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
- 3690 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1731 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 160 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 KOMA 150126 COR TOROMA IAC129-155-NEC055-153-150200- BULLETIN - EBS ACTIVATION REQUESTED...CORRECTED MILLS COUNTY AND TORNADO WARNING TIME NATIONAL WEATHER SERVICE OMAHA NE 824 PM CDT FRI JUN 14 1991 THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST IOWA ...MILLS COUNTY IN WEST CENTRAL IOWA ...WESTERN POTTAWATTAMIE COUNTY IN EAST CENTRAL NEBRASKA ...DOUGLAS COUNTY...SARPY COUNTY AT 820 PM CDT NUMEROUS REPORTS OF FUNNEL CLOUDS WERE BEING RECEIVED IN THE OMAHA AREA...INCLUDING NEAR HIGHWAY 50 AND INTERSTATE. TAKE SHELTER IMMEDIATELY. THE ASOCIATED SEVERE THUNDERSTORMS IN THE AREA SOUTHWEST OF OMAHA ABOUT 20 MILES AND IN THE OMAHA AREA WERE MOVING NORTHEAST AT 30 MPH. THIS REPLACES THE PREVIOUSLY ISSUED SEVERE THUNDERSTORM WARNING AND INCLUDES THE OMAHA/COUNCIL BLUFFS METRO AREA. PERSONS IN THE WARNED AREA SHOULD TAKE SHELTER IN A BASEMENT IF AVAILABLE. OTHERWISE GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. CARS AND MOBILE HOMES SHOULD BE ABANDONED. IN ADDITION TO THE THREAT OF TORNADOES...LARGE HAIL...DANGEROUS LIGHTNING AND VERY HEAVqY RAIN ARE LIKELY WITH THIS STORM. BYRD
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 14, 4:15 PM CDT, 4 hours 9 minutes before
NEZ003-004-007-008-009-142215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORFOLK NE 415 PM CDT FRI JUN 14 1991 ...SEVERE THUNDERSTORM WATCH FOR ALL OF NORTHEAST NEBRASKA AND PARTS OF NORTHCENTRAL NEBRASKA UNTIL 10 PM CDT... AT 410 PM CDT THUNDERSTORMS WERE DEVELOPING OVER PARTS OF THE REGION. THE STRONGEST STORMS WERE IN A 25 MILE WIDE BAND THAT STETCHED FROM ABOUT 55 MILES SOUTHWEST OF NORFOLK TO 30 MILES NORTHEAST OF NORFOLK. THE STORMS ARE MOVING NORTHEAST AT 15 MPH. HEAVY RAIN AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS...ALONG WITH DEADLY LIGHTNING. PERSONS IN THE AREA SHOULD REMAIN ALERT FOR THE POSSIBLE DEVELOPMENT OF SEVERE WEATHER THROUGH THE EVENING HOURS. IF THREATENING WEATHER APPROACHES OR IF A WARNING IS ISSUED YOU SHOULD SEEK SHELTER QUICKLY. MILLER
Special weather statement, Jun 14, 6:22 PM CDT, 2 hours 2 minutes before
NEZ015-140430- SPECIAL WEATHER STATEMENT...CORRECTION FOR TIME OF ISSUANCE NATIONAL WEATHER SERVICE LINCOLN NE 622 PM CDT FRI JUN 14 1991 AT 615 PM AN AREA OF STRONG THUNDERSTORMS WERE LOCATED 40 MILES EAST OF CONCORDIA KANSAS..30 MILES SOUTH OF THE NEBRASKA/KANSAS BORDER. THESE STORMS ARE MOVING NORTH NORTHEAST AT 15 MPH. THIS STORM HAS PRODUCED ONE INCH HAIL IN KANSAS. THIS AREA OF THUNDERSTORMS SHOULD MOVE INTO SOUTHERN GAGE AND PAWNEE COUNTIES AROUND 7 PM CDT THIS EVENING. PEOPLE IN SOUTHERN GAGE AND PAWNEE COUNTIES SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. LISTEN TO NOAA WEATHER RADIO OR NEWS MEDIA FOR THE LATEST INFORMATION ON WATCHES AND WARNINGS. GHG
Special weather statement, Jun 14, 6:23 PM CDT, 2 hours 1 minute before
NEZ015-140430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN NE 622 PM CDT FRI JUN 14 1991 AT 615 PM AN AREA OF STRONG THUNDERSTORMS WERE LOCATED 40 MILES EAST OF CONCORDIA KANSAS..30 MILES SOUTH OF THE NEBRASKA/KANSAS BORDER. THESE STORMS ARE MOVING NORTH NORTHEAST AT 15 MPH. THIS STORM HAS PRODUCED ONE INCH HAIL IN KANSAS. THIS AREA OF THUNDERSTORMS SHOULD MOVE INTO SOUTHERN GAGE AND PAWNEE COUNTIES AROUND 7 PM CDT THIS EVENING. PEOPLE IN SOUTHERN GAGE AND PAWNEE COUNTIES SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. LISTEN TO NOAA WEATHER RADIO OR NEWS MEDIA FOR THE LATEST INFORMATION ON WATCHES AND WARNINGS. GHG
Special weather statement, Jun 14, 6:50 PM CDT, 1 hour 34 minutes before
NEZ015-1402350 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN NE 645 PM CDT FRI JUN 14 1991 ...SEVERE THUNDERSTORM WATCH FOR SOUTHEAST NEBRASKA UNTIL MIDNIGHT... A SEVERE THUNDERSTORMS WATCH IS NOW IN EFFECT FOR ALL OF SOUTHEAST NEBRASKA UNTIL MIDNIGHT TONGHT. AT 645 PM AN AREA OF STRONG THUNDERSTORMS WERE LOCATED ON THE KANSAS/ NEBRASKA BORDER...20 MILES SOUTH OF THE BEATRICE. THESE STORMS ARE MOVING NORTH NORTHEAST AT 25 MPH AND INTO SOUTHERN GAGE AND SOUTHERN PAWNEE COUNTIES. RADAR SHOWS THEY WILL BE PRODUCING HEAVY RAIN AND HAIL. PEOPLE IN SOUTHERN GAGE AND PAWNEE COUNTIES SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. LISTEN TO NOAA WEATHER RADIO OR NEWS BROADCASTS FOR THE LATEST INFORMATION ON WATCHES AND WARNINGS. FM
Special weather statement, Jun 14, 7:21 PM CDT, 1 hour 3 minutes before
NEZ004-009-150045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORFOLK NE 720 PM CDT FRI JUN 14 1991 ...SEVERE THUNDERSTORM WARNING FOR PIERCE...WAYNE...NORTHERN MADISON AND SOUTHERN CEDAR COUNTIES EXPIRED AT 715 PM CDT... SCATTERED SHOWERS AND A FEW STRONG THUNDERSTORMS CONTINUED OVER THE NORTHERN HALF OF NORTHEAST NEBRASKA AT 715 PM BUT NONE OF THE STORMS SHOW SEVERE CHARACTERISTICS. THUS...THE SEVERE THUNDERSTORMS WARNING WHICH WAS IN EFFECT FOR PARTS OF THE AREA HAS BEEN ALLOWED TO EXPIRE. LOWLAND AND SMALL STREAM FLOODING HAS BEEN REPORTED IN PARTS OF PIERCE ...WAYNE...NORTHERN MADISON AND SOUTHERN CEDAR COUNTIES. A FLASH FLOOD WATCH CONTINUES FOR NORTHEAST NEBRASKA TONIGHT. THOSE WHO LIVE IN FLOOD PRONE AREAS OF NORTHEAST NEBRASKA SHOULD BE ALERT FOR RAPID RISES IN SMALL STREAMS...AND HAVE A PLAN OF ACTION READY TO PROTECT LIFE AND PROPERTY SHOULD IT BECOME NECESSARY. > A SEVERE THUNDERSTORM WATCH CONTINUES FOR STANTON...CUMING...COLFAX... AND WAYNE COUNTIES OF NORTHEAST NEBRASKA UNTIL MIDNIGHT. THIS WATCH ALSO EXTENDS FURTHER EAST. MILLER
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 7:24 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 66 min |
| Jun 14, 8:06 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 69 min |
| Jun 14, 8:24 PM CDT | Tornado Warning | OAX | Pottawattamie | 36 min |
| Jun 14, 8:59 PM CDT | Tornado Warning | OAX | Harrison | 31 min |
| Jun 14, 9:00 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Page | 60 min |
| Jun 14, 9:00 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 60 min |
| Jun 14, 9:32 PM CDT | Tornado Warning | OAX | Harrison | 43 min |
| Jun 15, 12:09 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 16 min |
| Jun 15, 2:59 AM CDT | Severe Thunderstorm Warning | OAX | Harrison | 46 min |
Nearby
Tornado Warnings in Iowa, 1991Every tornado warning in 1991Tornadoes in 1991
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.