Alert archive / Ohio / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 164, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Sep 29, 1999, 2:37 PM EDT for Geauga County, Lake County, Ohio. It was in force for 63 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 29, 1999, 2:37 PM EDT (18:37 UTC)
- Expired
- Sep 29, 1999, 3:40 PM EDT
- In force
- 63 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
Counties Geauga County, OH, Lake County, OH
The radar
The Cleveland radar (KCLE), 58 km from the middle of the area, began a volume at 18:40 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 29, 3:00 PM EDT | Thunderstorm Wind | Chardon, OH | Two trees downed just north of Chardon. |
| Sep 29, 3:05 PM EDT | Thunderstorm Wind | Madison, OH | Several dozens trees downed. Seven homes suffered minor roof and structural damage from fallen trees. An additional home suffered major structural damage when a twelve ton tree fell on the roof of an upstairs bedroom. The roof over the bedroom was destroyed |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 29, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 6.6 hours before the alert went out and 163 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
- 618 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 768 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
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.
NWS Cleveland, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 29, 9:50 AM EDT, 4 hours 47 minutes earlier.
Area forecast discussion, Sep 29, 9:50 AM EDT, 4 hours 47 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CLEVELAND OH 950 AM EDT WED SEP 29 1999 NO MAJOR CHANGES IN FCSTS. RADAR SHOWS ABUNDANT RAINS WESTWARD SO KEPT POPS HIGH OR DROPPED THEM. TEMPS LOOK REASONABLE WITH LTL RISE ABOVE LT MRNG READINGS. DEB .CLE...NONE
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 1:14 PM EDT | Severe Thunderstorm Warning | CLE | Knox | 46 min |
| Sep 29, 1:20 PM EDT | Severe Thunderstorm Warning | CLE | Holmes | 65 min |
| Sep 29, 3:03 PM EDT | Severe Thunderstorm Warning | CLE | Stark, Summit | 62 min |
| Sep 29, 3:52 PM EDT | Severe Thunderstorm Warning | CLE | Portage | 63 min |
| Sep 29, 4:18 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula | 62 min |
| Sep 29, 4:19 PM EDT | Severe Thunderstorm Warning | CLE | Trumbull | 41 min |
| Sep 29, 4:49 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 61 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.