Alert archive / Indiana / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 146, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 31, 1986, 6:04 AM EST for Pike County, Indiana. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1986, 6:04 AM EST (11:04 UTC)
- Expired
- Jul 31, 1986, 6:30 AM EST
- In force
- 26 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Pike 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
Salem-Leckrone, IL (KSLO), launched 00:00Z, 11.1 hours before the alert went out and 148 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
- 1925 J/kg
- Mixed-layer CIN
- -202 J/kg
- Mixed-layer LCL
- 1112 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
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.
In the hours before
Special weather statement, Jul 31, 2:50 AM EST, 3 hours 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 250 AM EST THU JUL 31 1986 ...SEVERE THUNDERSTORM WATCH FOR SOUTHWEST INDIANA UNTIL 7AM... AT 245 AM EST VERY STRONG THUNDERSTORMS HAVE MOVED INTO WESTCENTRAL INDIANA. THE STRONG THUNDERSTORMS WERE 20 MILES NORTH OF TERRE HAUTE IN WEST CENTRAL INDIANA. THESE THUNDERSTORMS MAY PRODUCE BRIEF VERY HEAVY RAINFALL AND STRONG WINDS AND LIGHTING AND POSSIBLE SMALL HAIL. THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 35 TO 40 MILES AN HOUR. EROS
Special weather statement, Jul 31, 4:00 AM EST, 2 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 358 AM EST THU JUL 31 1986 ...SEVERE THUNDERSTORM WATCH FOR SOUTHWEST INDIANA UNTIL 7AM... AT 350 AM EST...VERY STRONG THUNDERSTORMS WERE OVER PARTS OF WEST CENTRAL AND SOUTHWEST INDIANA...AND EXTENDED BACK INTO EAST CENTRAL ILLINOIS. THE STRONGEST STORMS WERE OVER EAST CENTRAL ILLINOIS FROM 25 TO 30 MILES WEST OF TERRE HAUTE...AND EXTENDED FARTHER TO THE WEST. OTHER STRONG STORMS WERE 15 MILES NORTH AND 25 MILES EAST OF VINCENNES. MOVEMENT WAS EAST AT ABOUT 25 MILES AN HOUR. THE STRONGER THUNDERSTORMS WILL BE CAPABLE OF PRODUCING VERY HEAVY RAIN...INTENSE LIGHTNING AND GUSTY WINDS. STEIGERWALDT
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 4:45 AM EST | Severe Thunderstorm Warning | IND | Sullivan, Vigo | 45 min |
| Jul 31, 6:58 AM EST | Severe Thunderstorm Warning | IND | Gibson, Posey | 32 min |
| Jul 31, 6:58 AM EST | Severe Thunderstorm Warning | IND | Knox | 32 min |
| Jul 31, 7:41 AM EST | Severe Thunderstorm Warning | IND | Vanderburgh | 34 min |
| Jul 31, 6:58 AM EST | Severe Thunderstorm Warning | IND | Edwards, Wabash, White | 32 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.