Alert archive / Iowa / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 161, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 12, 1998, 1:22 AM CDT for Adams County, Iowa. It was in force for 33 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 12, 1998, 1:22 AM CDT (06:22 UTC)
- Expired
- Jun 12, 1998, 1:55 AM CDT
- In force
- 33 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Adams County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 12, 1:23 AM CDT | Thunderstorm Wind 56 | Corning, 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 6.4 hours before the alert went out and 144 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
- 477 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 1339 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
267 WUUS1 KDSM 120623 RRA SVRDSM IAC003-120655- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 122 AM CDT FRI JUN 12 1998 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN ADAMS COUNTY IN SOUTHWESTERN IOWA * UNTIL 155 AM CDT * AT 120 AM CDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 66 MILES EAST SOUTHEAST OF OMAHA OR 1 MILE NORTHWEST OF CORNING MOVING EAST AT 35 MPH. * THIS STORM CAN BE EXPECTED NEAR... CORNING NOW DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS SMITH
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, Jun 11, 8:30 PM CDT, 4 hours 52 minutes before
IAZ033-034-044>047-057>060-070>073-081>084-092>095-120430- CENTRAL IOWA THUNDERSTORM OUTLOOK...CORRECTION NATIONAL WEATHER SERVICE DES MOINES IA 830 PM CDT THU JUN 11 1998 HAZARD--A LINE OF THUNDERSTORMS PRODUCING DAMAGING WINDS UP TO 70 MPH AND HAIL UP TO 1 INCH IN DIAMETER. AREA OF CONCERN AND TIMING DETAILS-- FROM SAC CIT TO DENISON AROUND 900 PM JEFFERSON...ATLANTIC...AUDUBON AND CORNING AREAS 915 TO 945 PM PRECAUTIONS--SPOTTER ACTIVATION MAY BE NEEDED SOON. GO INDOORS AS THE STORMS APPROACH. THE STORMS ARE MOVING EAST-SOUTHEAST AT 25 MPH. KULA
Special weather statement, Jun 11, 8:30 PM CDT, 4 hours 52 minutes before
IAZ033-034-044>047-057>060-070>073-081>084-092>095-120430- CENTRAL IOWA THUNDERSTORM OUTLOOK...CORRECTION NATIONAL WEATHER SERVICE DES MOINES IA 830 PM CDT THU JUN 11 1998 HAZARD--A LINE OF THUNDERSTORMS PRODUCING DAMAGING WINDS UP TO 70 MPH AND HAIL UP TO 1 INCH IN DIAMETER. AREA OF CONCERN AND TIMING DETAILS-- FROM SAC CIT TO DENISON AROUND 900 PM JEFFERSON...ATLANTIC...AUDUBON AND CORNING AREAS 915 TO 945 PM PRECAUTIONS--SPOTTER ACTIVATION MAY BE NEEDED SOON. GO INDOORS AS THE STORMS APPROACH. THE STORMS ARE MOVING EAST-SOUTHEAST AT 25 MPH. KULA
Special weather statement, Jun 11, 8:30 PM CDT, 4 hours 52 minutes before
IAZ033-034-044>047-057>060-070>073-081>084-092>095-120430- CENTRAL IOWA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 830 PM CDT THU JUN 11 1998 HAZARD--A LINE OF THUNDERSTORMS PRODUCING DAMAGING WINDS UP TO 70 MPH AND HAIL UP 1 INCH IN DIAMETER. AREA OF CONCERN AND TIMING DETAILS-- FROM SAC CIT TO DENISON AROUND 900 PM JEFFERSON...ATLANTIC AND CORNING AREAS 915 TO 945 PM PRECAUTIONS--SPOTTER ACTIVATION MAY BE NEEDED SOON. GO INDOORS AS THE STORMS APPROACH. THE STORMS ARE MOVING EAST-SOUTHEAST AT 25 MPH. KULA
Special weather statement, Jun 11, 8:30 PM CDT, 4 hours 52 minutes before
IAZ033-034-044>047-057>060-070>073-081>084-092>095-120430- CENTRAL IOWA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 830 PM CDT THU JUN 11 1998 HAZARD--A LINE OF THUNDERSTORMS PRODUCING DAMAGING WINDS UP TO 70 MPH AND HAIL UP 1 INCH IN DIAMETER. AREA OF CONCERN AND TIMING DETAILS-- FROM SAC CIT TO DENISON AROUND 900 PM JEFFERSON...ATLANTIC AND CORNING AREAS 915 TO 945 PM PRECAUTIONS--SPOTTER ACTIVATION MAY BE NEEDED SOON. GO INDOORS AS THE STORMS APPROACH. THE STORMS ARE MOVING EAST-SOUTHEAST AT 25 MPH. KULA
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 11:56 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 19 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1998Every severe thunderstorm warning in 1998
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.