Alert archive / Ohio / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 30, NWS Cleveland, OH

April 20, 2017Hancock County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Apr 20, 2017, 5:27 PM EDT for Hancock County, Ohio. It was in force for 39 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 20, 2017, 5:27 PM EDT (21:27 UTC)
Expired: Apr 20, 2017, 6:06 PM EDT
In force: 39 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Hancock County, OH

The radar

The Cleveland radar (KCLE), 154 km from the middle of the area, began a volume at 21:30 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
Apr 20, 5:35 PM EDT	HAIL 1	7 W Findlay, OH	TRAINED SPOTTER REPORTED QUARTER SIZED HAIL ALONG US 224 ABOUT 7 MILES WEST OF FINDLAY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 20, 2:08 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.5 hours before the alert went out and 183 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 234 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1148 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

585 
WUUS51 KCLE 202127
SVRCLE
OHC063-202230-
/O.NEW.KCLE.SV.W.0030.170420T2127Z-170420T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
527 PM EDT THU APR 20 2017

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Hancock County in northwestern Ohio...

* Until 630 PM EDT

* At 525 PM EDT, a severe thunderstorm was located near Ottawa,
  moving east at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Findlay, Fostoria, North Baltimore, McComb, Arcadia, Rawson,
  Vanlue, Van Buren, Bloomdale, Benton Ridge, Mount Cory and
  Bairdstown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4116 8388 4117 8373 4117 8342 4099 8342
      4099 8346 4098 8346 4093 8388
TIME...MOT...LOC 2125Z 256DEG 30KT 4103 8396 

HAIL...1.00IN
WIND...60MPH
 
$$

Jamison

2 follow-up statements

076 
WWUS51 KCLE 202143
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
543 PM EDT THU APR 20 2017

OHC063-202230-
/O.CON.KCLE.SV.W.0030.000000T0000Z-170420T2230Z/
Hancock OH-
543 PM EDT THU APR 20 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR HANCOCK COUNTY...

At 541 PM EDT, a severe thunderstorm was located near McComb and 
Findlay, moving east at 35 mph. This storm was located over US Route 
224. 

HAZARD...60 mph wind gusts and quarter size hail. Torrential 
         rainfall is occurring with this storm.

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Findlay, Fostoria, North Baltimore, McComb, Arcadia, Rawson, Vanlue,
Van Buren, Bloomdale, Benton Ridge, Mount Cory and Bairdstown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4116 8388 4117 8373 4117 8342 4099 8342
      4099 8346 4098 8346 4093 8388
TIME...MOT...LOC 2141Z 257DEG 32KT 4106 8377 

HAIL...1.00IN
WIND...60MPH
 
$$

Jamison

524 
WWUS51 KCLE 202206
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
606 PM EDT THU APR 20 2017

OHC063-202214-
/O.CAN.KCLE.SV.W.0030.000000T0000Z-170420T2230Z/
Hancock OH-
606 PM EDT THU APR 20 2017

...THE SEVERE THUNDERSTORM WARNING FOR HANCOCK COUNTY IS CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been cancelled. However gusty winds are 
still possible with a thunderstorm moving into the area from Putnam 
County. A severe thunderstorm watch remains in effect until 800 PM 
EDT for northwestern Ohio.

LAT...LON 4116 8388 4117 8373 4117 8342 4099 8342
      4099 8346 4098 8346 4093 8388
TIME...MOT...LOC 2200Z 256DEG 30KT 4111 8351 

$$

Jamison

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 19, 8:09 PM EDT	Special Weather Statement	CLE	Huron, Medina, Seneca	51 min
Apr 19, 9:06 PM EDT	Areal Flood Advisory	CLE	Stark, Summit	5 hr
Apr 19, 9:30 PM EDT	Special Weather Statement	CLE	Wood	45 min
Apr 19, 10:38 PM EDT	River Flood Warning	CLE	Stark	13 hr
Apr 20, 8:23 AM EDT	Special Marine Warning	CLE		37 min
Apr 20, 10:46 AM EDT	Special Weather Statement	CLE	Ashtabula	29 min
Apr 20, 4:13 PM EDT	Special Weather Statement	CLE	Lucas, Wood	47 min
Apr 20, 5:19 PM EDT	Special Weather Statement	CLE	Sandusky	41 min
Apr 20, 6:16 PM EDT	Special Marine Warning	CLE		89 min
Apr 20, 6:56 PM EDT	Special Weather Statement	CLE	Lucas	49 min
Apr 20, 7:20 PM EDT	Special Marine Warning	CLE		85 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2017 Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.