Alert archive / Indiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 29, NWS Northern Indiana

May 5, 1999Allen County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at May 5, 1999, 7:44 PM EST for Allen County, Indiana. It was in force for 66 min. 9 reports 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
May 5, 1999, 7:44 PM EST (00:44 UTC)
Expired
May 5, 1999, 8:50 PM EST
In force
66 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Allen County, IN

What was reported inside it

TimeReportWhereRemark
May 5, 7:50 PM ESTHail 1.25Yoder, IN
May 5, 7:52 PM ESTHail 1Ft Wayne, IN
May 5, 7:55 PM ESTHail 1.5Aboite, IN
May 5, 8:00 PM ESTThunderstorm WindFt Wayne, INPower lines blown down at Exit 103 on I-69
May 5, 8:05 PM ESTHail 1Ft Wayne, IN
May 5, 8:09 PM ESTHail 0.88Ft Wayne, IN
May 5, 8:12 PM ESTHail 0.75Ft Wayne, INReported at the Ft Wayne Zoo
May 5, 8:12 PM ESTHail 0.75Ft Wayne, INIntersection of Spring and St. Mary Streets
May 5, 8:26 PM ESTHail 0.75Ft Wayne, IN1 mile SSE of US30/I-69 Intersection

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, 0.7 hours before the alert went out and 214 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.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 1999-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1053 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 1999-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1053 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1206 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 5, 8:07 PM ESTSevere Thunderstorm WarningIWXElkhart, LaGrange, Noble63 min
May 5, 8:30 PM ESTSevere Thunderstorm WarningIWXDeKalb65 min
May 5, 8:54 PM ESTSevere Thunderstorm WarningIWXSteuben46 min
May 5, 9:18 PM ESTSevere Thunderstorm WarningIWXBranch62 min
May 5, 9:36 PM ESTSevere Thunderstorm WarningIWXHillsdale49 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1999Every severe thunderstorm warning in 1999

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.