Alert archive / Indiana / Tornado Warnings in 1999

Tornado Warning 9, NWS Wilmington, OH

May 17, 1999Wayne County, Indiana

NWS Wilmington, OH issued this tornado warning at May 17, 1999, 8:16 PM EST for Wayne County, Indiana. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 17, 1999, 8:16 PM EST (01:16 UTC)
Expired: May 17, 1999, 9:05 PM EST
In force: 49 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Wayne County, IN

The radar

The Indianapolis radar (KIND), 110 km from the middle of the area, began a volume at 01:17 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.3 hours before the alert went out and 114 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 572 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 1617 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 111 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KILN 180116 RRA
TORILN
INC177-180205-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
916 PM EDT (816 PM EST) MON MAY 17 1999

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* TORNADO WARNING FOR...
  WAYNE COUNTY IN EAST CENTRAL INDIANA.

* UNTIL 905 PM EST (1005 PM EDT)

* AT 815 PM EST... DOPPLER RADAR INDICATED A TORNADO 15 MILES WEST
  OF RICHMOND... MOVING NORTHEAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  HAGERSTOWN AT 822 PM EST .
  GREENS FORK AT 827 PM EST .
  ECONOMY AT 831 PM EST .
  FOUNTAIN CITY AT 842 PM EST .

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

.END/TIPTON

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.

NWS Wilmington, OH wrote its last area forecast discussion before this tornado warning went out at May 17, 2:35 PM EST, 5 hours 41 minutes earlier.

Area forecast discussion, May 17, 2:35 PM EST, 5 hours 41 minutes before

AREA FORECAST DISCUSSION...CORRECTED HEADLINE SECTION
NATIONAL WEATHER SERVICE WILMINGTON OH
250 PM EDT MON MAY 17 1999

CONVECTION HAS REMAINED WELL WEST OF THE CWFA THIS AFTN...FOCUSED IN
THE VCNTY OF SVRL OUTFLOW BNDRYS AND IN AREA OF FAVORABLE UPPER LVL
DYNAMICS.  WEAK CAA ALOFT AND INCREASING UPPER LVL DYNAMICS WL
ARRIVE TNGT...WITH CONVECTION CONTINUING TO FIRE IN THE VCNTY OF THE
OUTFLOW BNDRYS.  DO NOT XPCT THE SHORT RANGE GUIDANCE TO HAVE A VERY
GD HANDLE ON THE EVOLUTION OF THE CONVECTION TNGT...AND IN GENERAL
XPCT A SLIGHTLY FASTER EVOLUTION THAN MODELS INDC.  WL HIT POPS A
LITTLE HARDER THAN MOS...GENERALLY CATEGORICAL WEST AND NORTH/HIGH
CHC-LIKELY EAST AND SOUTH.  TEMPS TRICKY AS IN THE ABSENCE OF
CONVECTION WUD XPCT READINGS TO REMAIN CLOSE TO 70...BUT WL HEDGE
LOWER AS COOLER TEMPS WL ACCOMPANY OUTFLOW AND RAIN.

FRONT AND DEEP MSTR MV THRU THE AREA ON TUESDAY...WITH GRADUAL
DRYING FROM THE WEST IN THE AFTN.  LEBD MACRO AND FCST SNDGS SUGGEST
ENUF INSTABILITY FOR THUNDER WITH THE UPPER SYS IN THE AFTN...ESPLY
GIVEN SOME BREAKS IN THE CLDS.

WWA JUST ISSUED...WL BE ISSUING AFTN ZONES ARND 3 PM.

.ILN...SEVERE THUNDERSTORM WATCH UNTIL 01Z NORTH OFn A LINE FROM
DARKE TO FRANKLIN COUNTIES IN OHIO.

JOHNSTONE

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 17, 7:49 PM EST	Severe Thunderstorm Warning	ILN	Fayette, Franklin	56 min
May 17, 8:07 PM EST	Severe Thunderstorm Warning	ILN	Union, Wayne	63 min

Nearby

Tornado Warnings in Indiana, 1999 Every tornado warning in 1999 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.