Alert archive / Indiana / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 20, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at May 6, 1986, 4:44 PM EST for Marshall County, Indiana. It was in force for 31 min.
The area
The counties it named.
The facts
- Issued
- May 6, 1986, 4:44 PM EST (21:44 UTC)
- Expired
- May 6, 1986, 5:15 PM EST
- In force
- 31 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Marshall County, IN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Dayton/James M C, OH (KDAY), launched 12:00Z, 9.7 hours before the alert went out and 235 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1560 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 200 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 KSBN 062145 SVRSBN INC099-062215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SOUTH BEND IN 444 PM EST TUE MAY 6 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM EST FOR PEOPLE IN THE FOLLOWING COUNTY OF NORTH CENTRAL INDIANA...NORTHERN MARSHALL AT 440 PM EST RADAR INDICATED A SEVERE THUNDERSTORM 20 MILES SOUTH OF SOUTH BEND INDIANA..JUST SOUTH OF PLYMOUTH IN MARSHALL COUNTY INDIANA. THE THUNDERSTORM WAS MOVING TOWARDS THE EAST AT 20 MILES AN HOUR. IF YOU ARE IN THE PATH OF THIS SEVERE THUNDERSTORM GET INTO A REIN- FORCED SHELTER AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL... VERY HEAVY RAIN AND LIGHTNING. REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. SAVAGE
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, May 6, 11:20 AM EST, 5 hours 24 minutes before
INDIANA WEATHER SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 520 PM EST TUE MAY 6 1986 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTHERN INDIANA TIL 800 PM EST... A SEVERE THUNDERSTORM WARNING WILL REMAIN IN EFFECT FOR TIPPECANOE COUNTY UNTIL 525 PM EST. A SECOND WARNING IS IN EFFECT FOR BOTH CASS AND CARROLL COUNTIES UNTIL 545 PM. A LINE OF STRONG THUNDERSTORMS WAS MOVING EAST ACROSS NORTHERN INDIANA LATE THIS AFTERNOON. AN AMATEUR RADIO OPERATOR REPORTED 70 MPH WINDS AT MONTICELLO ALONG WITH PEA SIZE HAIL NEAR 436 PM EST. WINDS OF 50 MPH WERE REPORTED AT LOWELL IN EXTREME NORTHWEST INDIANA AROUND 320 PM EST BY STATE POLICE. RADAR AT 510 PM EST...SHOWED THAT A LINE OF STRONG THUNDERSTORMS EXTENDED FROM NEAR CRAWFORDSVILLE..ACROSS LAFAYTETTE TO NORTH OF FORT WAYNE. THESE THUNDERSTORMS WERE MOVING EAST AT 40 MPH. THE THUNDERSTORMS ARE BEING PRODUCED BY A COLD FRONT OVER NORTHERN ILLINOIS. THIS FRONT WILL MOVE INTO NORTHERN INDIANA LATE TONIGHT AND BECOME STATIONARY ACROSS CENTRAL INDIANA ON WEDNESDAY. MOST OF THE THUNDERSTORMS WILL OCCUR NEAR AND JUST AHEAD OF THIS FRONT TONIGHT. TEMPERATURES AS OF 500 PM EST RANGED FROM 66 DEGREES AT SOUTH BEND TO 84 DEGREES AT EVANSVILLE. HENDRICKSON/DECAIRE
Special weather statement, May 6, 3:54 PM EST, 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 355 PM EST TUE MAY 6 1986 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHERN INDIANA NORTH OF A LINE FROM NEAR LAFAYETTE TO NEAR FORT WAYNE UNTIL 8 PM EST. GOLF BALL SIZE HAIL WAS REPORTED NEAR MICHIGAN CITY AROUND 330 PM BY THE INDIANA STATE POLICE. VERY INTENSE THUNDERSTORMS...CONTAINING HEAVY RAIN...AND POSSIBLE STRONG WINDS AND LARGE HAIL WERE FROM WEST OF RENNSELAER SO8UTHWEST INTO ILLINOIS AROUND CHAMGAIGN AND URBANA. THESE STORMS ARE MOVING TO THE EAST NORTHEAST AT AROUND 30 MPH. STSY TUNED FOR LATER INFORMATION. CURRAN
Special weather statement, May 6, 4:43 PM EST, 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 440 PM EST TUE MAY 6 1986 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHERN INDIANA NORTH OF A LINE FROM NEAR LAFAYETTE TO NEAR FORT WAYNE UNTIL 8 PM EST. A LINE OF THUNDERSTORMS EXTENDED ACROSS NORTHERN INDIANA FROM KENDALLVILLE IN NOBLE COUNTY THROUGH WINAMAC AND MONON TO NEAR WILLIAMSPORT IN WARREN COUNTY AT 430 PM. THE STORMS WERE PRODUCING HEAVY RAIN AND PEA SIZE HAIL AT SOME LOCATIONS. SMALL HAIL WAS REPORTED BY THE STATE POLICE IN SOUTHEAST JASPER COUNTY AND BY THE CIVIL DEFENSE IN BENTON COUNTY NEAR FOWLER. PEA SIZE HAIL WAS ALSO REPORTED AT MONTICELLO AND REYNOLDS. JUST EAST OF REYNOLDS ON U.S. 24 A BARN WAS DESTROYED BY STRONG WINDS. THE THUNDERSTORMS WERE MOVING NORTHEAST AT AROUND 30 MPH. STAY TUNED FOR LATER INFORMATION. DD
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 3:49 PM EST | Severe Thunderstorm Warning | IND | LaPorte | 31 min |
| May 6, 5:00 PM EST | Severe Thunderstorm Warning | IND | Tippecanoe | 25 min |
| May 6, 5:13 PM EST | Severe Thunderstorm Warning | IND | Carroll, Cass | 32 min |
| May 6, 5:33 PM EST | Severe Thunderstorm Warning | IND | Miami | 27 min |
| May 6, 5:55 PM EST | Severe Thunderstorm Warning | IND | Howard | 25 min |
| May 6, 6:15 PM EST | Severe Thunderstorm Warning | IND | Hamilton | 25 min |
| May 6, 6:55 PM EST | Severe Thunderstorm Warning | IND | Benton | 25 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1986Every severe thunderstorm warning in 1986
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.