Alert archive / Indiana / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 48, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 9, 2011, 9:03 AM EDT for Greene County, Knox County, Sullivan County, Indiana. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2011, 9:03 AM EDT (13:03 UTC)
- Expired
- Apr 9, 2011, 9:30 AM EDT
- In force
- 27 min
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Greene County, IN, Knox County, IN, Sullivan County, IN
The radar
The Evansville,IN radar (KVWX), 95 km from the middle of the area, began a volume at 13:07 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 9, 8:25 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 1.1 hours before the alert went out and 176 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
- 1370 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
998 WUUS53 KIND 091303 SVRIND INC055-083-153-091330- /O.NEW.KIND.SV.W.0048.110409T1303Z-110409T1330Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 903 AM EDT SAT APR 9 2011 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN GREENE COUNTY IN SOUTHWEST INDIANA... NORTHEASTERN KNOX COUNTY IN SOUTHWEST INDIANA... SOUTHEASTERN SULLIVAN COUNTY IN SOUTHWEST INDIANA... * UNTIL 930 AM EDT * AT 900 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 12 MILES SOUTHWEST OF LINTON...OR 20 MILES NORTHEAST OF VINCENNES... AND MOVING NORTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... PLEASANTVILLE AROUND 910 AM EDT... LINTON...VICKSBURG AND LYONS AROUND 920 AM EDT... SWITZ CITY AROUND 925 AM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THIS STORM HAS A HISTORY OF PRODUCING QUARTER SIZE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 3913 8718 3902 8701 3882 8723 3892 8735 TIME...MOT...LOC 1303Z 221DEG 33KT 3894 8729 WIND...HAIL 60MPH 1.00IN $$ AB/JP
1 follow-up statement
791 WWUS53 KIND 091312 SVSIND SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 912 AM EDT SAT APR 9 2011 INC055-083-153-091330- /O.CON.KIND.SV.W.0048.000000T0000Z-110409T1330Z/ GREENE-KNOX-SULLIVAN- 912 AM EDT SAT APR 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN KNOX...SOUTHWESTERN GREENE AND SOUTHEASTERN SULLIVAN COUNTIES UNTIL 930 AM EDT... AT 910 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LINTON...OR 27 MILES NORTHEAST OF VINCENNES...MOVING NORTHEAST AT 40 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... SWITZ CITY AROUND 920 AM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 3913 8718 3902 8701 3882 8723 3892 8735 TIME...MOT...LOC 1312Z 232DEG 35KT 3898 8716 WIND...HAIL 60MPH 1.00IN $$ PUMA
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 8:00 AM EDT | Severe Thunderstorm Warning | IND | Knox, Sullivan | 45 min |
| Apr 9, 8:27 AM EDT | Severe Thunderstorm Warning | IND | Clay, Greene, Sullivan, Vigo | 48 min |
| Apr 9, 9:06 AM EDT | Severe Thunderstorm Warning | IND | Daviess, Knox, Sullivan | 39 min |
| Apr 9, 9:09 AM EDT | Severe Thunderstorm Warning | IND | Clay, Owen, Putnam, Vigo | 51 min |
| Apr 9, 9:22 AM EDT | Severe Thunderstorm Warning | IND | Greene, Monroe, Owen | 38 min |
| Apr 9, 9:31 AM EDT | Severe Thunderstorm Warning | IND | Daviess, Greene, Knox, Sullivan | 44 min |
| Apr 9, 9:47 AM EDT | Flash Flood Warning | IND | Greene, Owen, Sullivan, Vigo | 5 hr |
| Apr 9, 10:10 AM EDT | Flash Flood Warning | IND | Brown, Daviess, Lawrence, Martin, Monroe | 4 hr |
| Apr 9, 10:21 AM EDT | Severe Thunderstorm Warning | IND | Jackson, Lawrence | 39 min |
| Apr 9, 12:00 PM EDT | River Flood Warning | IND | Lawrence, Martin | 8 days |
| Apr 9, 12:00 PM EDT | River Flood Warning | IND | Daviess, Gibson, Knox, Pike | 37 days |
Nearby
Severe Thunderstorm Warnings in Indiana, 2011Every severe thunderstorm warning in 2011
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.