Alert archive / Indiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 215, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Jun 23, 1998, 12:36 AM EST for Ripley County, Indiana. It was in force for 34 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 23, 1998, 12:36 AM EST (05:36 UTC)
- Expired
- Jun 23, 1998, 1:10 AM EST
- In force
- 34 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Ripley County, IN
The radar
The Indianapolis radar (KIND), 110 km from the middle of the area, began a volume at 05:40 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 23, 1:00 AM EST | Thunderstorm Wind 50 | Countywide, IN | Numerous trees were downed across the county. |
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
Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.6 hours before the alert went out and 131 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
- 38 J/kg
- Mixed-layer CIN
- -265 J/kg
- Mixed-layer LCL
- 1725 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 22, 7:52 PM EST, 4 hours 44 minutes earlier.
Area forecast discussion, Jun 22, 7:52 PM EST, 4 hours 44 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 852 PM EDT MON JUN 22 1998 CLE/IND: RCMD CUTTING POPS BACK INTO THE HIGH CHC/LIKELY CATEGORY. DISC: MCS CONTINUES TO PUSH SOUTHEAST AWAY FROM THE AREA...AND PCPN HAS JUST ABOUT CLEARED OUT. THE COMBINATION OF CONVECTIVE OUTFLOW AND A PROLONGED PERIOD OF STRATIFORM RAIN HAS WORKED THE ATMOSPHERE OVER PRETTY WELL...WITH DEWPTS NOW DOWN INTO THE M-U 60S. FAIRLY STRONG SHORT WAVE WL MOVE ACRS THE AREA OVERNIGHT...AND I STILL EXPECT SOME SHRA/TSRA ACTIVITY AROUND...BUT PRBLY CAN CUT POPS BACK QUITE A BIT ACRS MY OH/IN COUNTIES. HAVE NOTED AN INCREASE IN CONVECTIVE CVRG ACRS CENTRL IL THE PAST HOUR OR SO...BUT THIS ACTIVITY\ IS FEEDING OFF M-U 70S DEWPOINT AIR IN A REGION WHICH HAD QUITE A BIT OF SUN THIS AFTN. OTHW EXPECT TO SEE SOME LOCALLY DENSE FOG WHERE THE HEAVY RAIN FELL THIS AFTN...AND THE CURRENT FCST MINS LOOK RSNBL. JOHNSTONE
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 12:25 AM EST | Flash Flood Warning | ILN | Dearborn, Ripley | 3 hr |
Nearby
Severe Thunderstorm Warnings in Indiana, 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; radar from the NEXRAD Level II archive.