Alert archive / Ohio / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 4, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Mar 15, 2012, 2:46 AM EDT for 4 counties in Ohio. It was in force for 29 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
- Mar 15, 2012, 2:46 AM EDT (06:46 UTC)
- Expired
- Mar 15, 2012, 3:15 AM EDT
- In force
- 29 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Defiance County, OH, Fulton County, OH, Henry County, OH, Williams County, OH
The radar
The Northern Indiana radar (KIWX), 117 km from the middle of the area, began a volume at 06:49 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
Detroit, MI (KDTX), launched 00:00Z, 6.8 hours before the alert went out and 159 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
- 142 J/kg
- Mixed-layer CIN
- -134 J/kg
- Mixed-layer LCL
- 2055 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
381 WUUS53 KIWX 150646 SVRIWX OHC039-051-069-171-150715- /O.NEW.KIWX.SV.W.0004.120315T0646Z-120315T0715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTHERN INDIANA 246 AM EDT THU MAR 15 2012 THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN FULTON COUNTY IN NORTHWEST OHIO... SOUTHEASTERN WILLIAMS COUNTY IN NORTHWEST OHIO... NORTHEASTERN DEFIANCE COUNTY IN NORTHWEST OHIO... NORTHWESTERN HENRY COUNTY IN NORTHWEST OHIO... * UNTIL 315 AM EDT * AT 242 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS SEVERE STORM WAS LOCATED 13 MILES WEST OF NAPOLEON...OR 7 MILES NORTH OF DEFIANCE...AND MOVING EAST AT 30 MPH. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... NAPOLEON... EVANSPORT... RIDGEVILLE CORNERS... OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE OKOLONA AND PETTISVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA. && LAT...LON 4155 8421 4138 8411 4129 8445 4142 8450 TIME...MOT...LOC 0644Z 249DEG 20KT 4139 8437 WIND...HAIL <50MPH 1.00IN $$
2 follow-up statements
825 WWUS53 KIWX 150656 SVSIWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTHERN INDIANA 256 AM EDT THU MAR 15 2012 OHC039-051-069-171-150715- /O.CON.KIWX.SV.W.0004.000000T0000Z-120315T0715Z/ HENRY OH-DEFIANCE OH-WILLIAMS OH-FULTON OH- 256 AM EDT THU MAR 15 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM EDT FOR SOUTH CENTRAL FULTON...SOUTHEASTERN WILLIAMS...NORTHEASTERN DEFIANCE AND NORTHWESTERN HENRY COUNTIES... AT 253 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. THIS SEVERE STORM WAS LOCATED 10 MILES WEST OF NAPOLEON... OR ABOUT 8 MILES SOUTH OF ARCHBOLD...AND MOVING EAST AT 25 MPH. LOCATIONS IMPACTED INCLUDE... NAPOLEON...RIDGEVILLE CORNERS AND PETTISVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA. && LAT...LON 4131 8443 4144 8444 4155 8421 4138 8411 TIME...MOT...LOC 0656Z 248DEG 20KT 4141 8430 WIND...HAIL <50MPH 1.50IN $$
354 WWUS53 KIWX 150714 SVSIWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTHERN INDIANA 314 AM EDT THU MAR 15 2012 OHC039-051-069-171-150723- /O.EXP.KIWX.SV.W.0004.000000T0000Z-120315T0715Z/ HENRY OH-DEFIANCE OH-WILLIAMS OH-FULTON OH- 314 AM EDT THU MAR 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL FULTON... SOUTHEASTERN WILLIAMS...NORTHEASTERN DEFIANCE AND NORTHWESTERN HENRY COUNTIES WILL EXPIRE AT 315 AM EDT... AT 312 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED. THEREFORE...THE SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER...THIS THUNDERSTORM IS STILL CAPABLE OF PRODUCING PENNY TO NICKEL SIZED HAIL AS IT TRACKS ACROSS SOUTHERN FULTON AND NORTHERN HENRY COUNTIES THROUGH 4 AM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA. && LAT...LON 4131 8443 4144 8444 4155 8421 4138 8411 TIME...MOT...LOC 0713Z 248DEG 20KT 4144 8418 $$
The office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 14, 9:02 PM EDT | River Flood Warning | IWX | Defiance, Fulton, Williams | 61 hr |
| Mar 15, 1:33 AM EDT | Special Weather Statement | IWX | Henry | 42 min |
| Mar 15, 2:07 AM EDT | Special Weather Statement | IWX | Defiance | 23 min |
| Mar 15, 2:22 AM EDT | Special Weather Statement | IWX | Defiance, Fulton, Henry, Putnam | 53 min |
| Mar 15, 3:30 AM EDT | Special Weather Statement | IWX | Fulton | 45 min |
| Mar 15, 7:18 AM EDT | Special Weather Statement | IWX | Van Wert | 27 min |
| Mar 15, 7:46 AM EDT | Special Weather Statement | IWX | Van Wert | 44 min |
| Mar 15, 8:14 AM EDT | Special Weather Statement | IWX | Putnam | 46 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 2012Every severe thunderstorm warning in 2012
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.