Alert archive / Ohio / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 172, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Aug 4, 2009, 4:47 AM EDT for Miami County, Montgomery County, Preble County, Ohio. It was in force for 58 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
- Aug 4, 2009, 4:47 AM EDT (08:47 UTC)
- Expired
- Aug 4, 2009, 5:45 AM EDT
- In force
- 58 min
- Issued by
- NWS Wilmington, OH
- Area
- Storm-based polygon
Counties Miami County, OH, Montgomery County, OH, Preble County, OH
The radar
The Cincinnati radar (KILN), 68 km from the middle of the area, began a volume at 08:48 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, 8.8 hours before the alert went out and 69 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
- 34 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 1226 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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.
NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 4, 4:37 AM EDT, 10 minutes earlier.
Area forecast discussion, Aug 4, 4:37 AM EDT, 10 minutes before
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</html>Hazardous weather outlook, Aug 3, 4:48 AM EDT, 23 hours 59 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 448 AM EDT MON AUG 3 2009 INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-040900- WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO- SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT- PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-HARDIN-MERCER-AUGLAIZE-DARKE- SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON- FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY- FAIRFIELD-BUTLER-WARREN-CLINTON-ROSS-HOCKING-HAMILTON-CLERMONT-BROWN- HIGHLAND-ADAMS-PIKE-SCIOTO- 448 AM EDT MON AUG 3 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL INDIANA...SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN KENTUCKY...CENTRAL OHIO...MIAMI VALLEY OF OHIO...SOUTH CENTRAL OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Aug 4, 4:02 AM EDT, 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 402 AM EDT TUE AUG 4 2009 INZ050-040830- WAYNE IN- 402 AM EDT TUE AUG 4 2009 ...A STRONG THUNDERSTORM WILL AFFECT WAYNE COUNTY THROUGH 430 AM EDT... AT 401 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM LOCATED NEAR HAGERSTOWN...MOVING EAST AT 20 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 40 MPH. LOCATIONS IMPACTED INCLUDE... DUBLIN...CAMBRIDGE CITY...HAGERSTOWN...RICHMOND...FOUNTAIN CITY AND CENTERVILLE. IN ADDITION...MOUNT AUBURN...FRANKLIN...EAST GERMANTOWN... JACKSONBURG...ECONOMY...GREENS FORK...RICHMOND MUNICIPAL AIRPORT AND MIDDLEBORO ARE NEAR THE PATH OF THIS STORM. FREQUENT CLOUD TO GROUND LIGHTNING WILL ALSO OCCUR. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. THIS STORM WILL ALSO BE CAPABLE OF PRODUCING VERY HEAVY RAIN...WHICH MAY FLOOD ROADS...DITCHES AND LOW LYING AREAS. DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE ROAD AND AVOID FLOOD PRONE AREAS. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES STRONGER...THEN A WARNING MAY BE NEEDED.
Local storm report, Aug 4, 4:36 AM EDT, 11 minutes before
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</html>The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 4:44 AM EDT | Severe Thunderstorm Warning | ILN | Preble | 61 min |
| Aug 4, 5:16 AM EDT | Areal Flood Advisory | ILN | Preble | 2 hr |
| Aug 4, 5:38 AM EDT | Severe Thunderstorm Warning | ILN | Greene, Montgomery | 52 min |
| Aug 4, 6:15 AM EDT | Areal Flood Advisory | ILN | Montgomery, Preble | 3 hr |
| Aug 4, 6:28 AM EDT | Severe Thunderstorm Warning | ILN | Clinton, Fayette, Greene, Warren | 47 min |
| Aug 4, 7:09 AM EDT | Areal Flood Advisory | ILN | Butler, Clinton, Montgomery, Preble, Warren | 3 hr |
| Aug 4, 8:11 AM EDT | Flash Flood Warning | ILN | Warren | 2 hr |
| Aug 4, 8:20 AM EDT | Areal Flood Advisory | ILN | Adams, Brown, Clermont, Clinton, Highland | 3 hr |
| Aug 4, 8:42 AM EDT | Severe Thunderstorm Warning | ILN | Adams, Scioto | 19 min |
| Aug 4, 9:31 AM EDT | Severe Thunderstorm Warning | ILN | Butler | 29 min |
| Aug 4, 9:49 AM EDT | Severe Thunderstorm Warning | ILN | Greene | 26 min |
| Aug 4, 11:11 AM EDT | Flash Flood Watch | ILN | Adams, Brown, Butler, Clermont, Clinton, Fayette and 9 more | 16 hr |
| Aug 4, 5:22 PM EDT | River Flood Advisory | ILN | Hamilton | 36 hr |
| Aug 4, 9:06 AM EDT | Areal Flood Advisory | ILN | Lewis, Mason | 3 hr |
| Aug 4, 11:55 AM EDT | Severe Thunderstorm Warning | ILN | Carroll, Gallatin, Owen | 50 min |
| Aug 4, 12:37 PM EDT | Areal Flood Advisory | ILN | Carroll, Gallatin, Owen | 3 hr |
| Aug 4, 1:36 PM EDT | Flash Flood Warning | ILN | Carroll, Gallatin, Owen | 3 hr |
| Aug 4, 2:17 PM EDT | Flash Flood Warning | ILN | Grant, Owen | 3 hr |
| Aug 4, 4:29 PM EDT | Areal Flood Warning | ILN | Carroll, Gallatin, Grant, Owen | 4 hr |
| Aug 4, 4:06 AM EDT | Severe Thunderstorm Warning | ILN | Wayne | 39 min |
| Aug 4, 6:15 AM EDT | Severe Thunderstorm Warning | ILN | Franklin | 37 min |
| Aug 4, 8:38 AM EDT | Areal Flood Advisory | ILN | Ripley | 3 hr |
| Aug 4, 9:17 AM EDT | Flash Flood Warning | ILN | Ripley | 8 hr |
| Aug 4, 10:23 AM EDT | Areal Flood Advisory | ILN | Dearborn, Fayette, Franklin, Union | 112 min |
| Aug 4, 10:39 AM EDT | Areal Flood Advisory | ILN | Dearborn, Fayette, Franklin, Union | 96 min |
| Aug 4, 10:59 AM EDT | Flash Flood Warning | ILN | Franklin | 6 hr |
| Aug 4, 1:20 PM EDT | Areal Flood Advisory | ILN | Fayette, Union, Wayne | 3 hr |
| Aug 4, 4:58 PM EDT | Areal Flood Warning | ILN | Franklin, Ripley | 6 hr |
Nearby
Severe Thunderstorm Warnings in Ohio, 2009Every severe thunderstorm warning in 2009
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.