Alert archive / Ohio / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 162, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Aug 4, 2017, 5:24 PM EDT for Carroll County, Columbiana County, Jefferson County, Ohio. It was in force for 22 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
- Aug 4, 2017, 5:24 PM EDT (21:24 UTC)
- Expired
- Aug 4, 2017, 5:46 PM EDT
- In force
- 22 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Carroll County, OH, Columbiana County, OH, Jefferson County, OH
The radar
The Pittsburgh radar (KPBZ), 43 km from the middle of the area, began a volume at 21:27 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 |
|---|---|---|---|
| Aug 4, 5:28 PM EDT | TSTM WND DMG | 4 W Salineville, OH | SEVERAL LARGE TREE BRANCHES DOWN ON RT 39 |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 4 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 4, 1:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Pittsburgh, PA (KAGC), launched 12:00Z, 9.4 hours before the alert went out and 57 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
- 254 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1156 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
660
WUUS51 KPBZ 042124
SVRPBZ
OHC019-029-081-042215-
/O.NEW.KPBZ.SV.W.0162.170804T2124Z-170804T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pittsburgh PA
524 PM EDT FRI AUG 4 2017
The National Weather Service in Pittsburgh has issued a
* Severe Thunderstorm Warning for...
Northwestern Jefferson County in east central Ohio...
Southeastern Columbiana County in east central Ohio...
East central Carroll County in east central Ohio...
* Until 615 PM EDT.
* At 524 PM EDT, a severe thunderstorm was located 10 miles east of
Carrollton, moving northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar.
IMPACT...Damage to trees and power lines.
* Locations impacted include...
East Liverpool... Wellsville...
Lisbon... Salineville...
Newell... Irondale...
Summitville... Mechanicstown...
La Croft... Glenmoor...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a building.
Please report severe weather by calling 412-262-1988, posting to
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH.
&&
LAT...LON 4063 8058 4062 8060 4063 8060 4062 8063
4061 8064 4056 8078 4055 8095 4063 8099
4081 8074
TIME...MOT...LOC 2124Z 243DEG 25KT 4063 8089
HAIL...<.75IN
WIND...60MPH
$$
Kramar1 follow-up statement
454
WWUS51 KPBZ 042146
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
546 PM EDT FRI AUG 4 2017
OHC019-029-081-042156-
/O.CAN.KPBZ.SV.W.0162.000000T0000Z-170804T2215Z/
Jefferson OH-Columbiana OH-Carroll OH-
546 PM EDT FRI AUG 4 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN JEFFERSON...
SOUTHEASTERN COLUMBIANA AND EAST CENTRAL CARROLL COUNTIES IS
CANCELLED...
The storm that prompted the warning has weakened below severe limits
and no longer pose an immediate threat to life and property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with this thunderstorm.
A severe thunderstorm watch remains in effect until 900 PM EDT for
east central Ohio...and northern West Virginia.
LAT...LON 4063 8058 4062 8060 4063 8060 4062 8063
4061 8064 4056 8078 4055 8095 4063 8099
4081 8074
TIME...MOT...LOC 2141Z 243DEG 25KT 4070 8071
$$
34What 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 Pittsburgh, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 4, 2:13 PM EDT, 3 hours 11 minutes earlier.
Area forecast discussion, Aug 4, 2:13 PM EDT, 3 hours 11 minutes before
Area Forecast Discussion National Weather Service Pittsburgh PA 213 PM EDT Fri Aug 4 2017 .SYNOPSIS... A cold front crossing tonight will usher cooler weather and less humid air this weekend. The front will bring more rain Sunday night into Monday. Below normal temperatures are forecast much of next week. && .NEAR TERM /THROUGH SATURDAY/... Showers and thunderstorms will continue until a cold front passes between 0Z Ohio and 4Z mountains. The threat of damaging winds remains the greatest concern which concurs with reports received so far. Flash flooding is a lower threat, but non-zero. Most favored locations would be ones that receive a storm this afternoon then hit again with the line associated with the front. Drier air works in overnight and with enough of a pressure gradient do not foresee fog as a concern during the predawn hours. Dewpoints will be nearly 15F-20F lower at 12Z Saturday than 24 hours ago. Pockets of cooler air aloft associated with the mid level trough may generate scattered but brief showers during the morning hours north of I80. && .SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY/... Much cooler and less humid weather are the main story in this time frame. Mid level trough axis sweeps through during the morning hours which could spawn scattered showers closer to Lake Erie so will keep low pops to account given sufficient moisture in the column with a passing trigger. Dewpoints will make it feel noticeably less humid as the are forecast in the 50s while daytime highs barely make it to 70F! Southerly winds don't give us a long reprieve of sub 60F dewpoints as they return Sunday. Mid and high clouds invade during the afternoon from south to north. There is no precipitation forecast during the daytime hours. && .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... Highlights: - Below normal temperatures - Wet start to the work week - Quieter in the middle and late Baroclinic zone that crosses today will stall south of our region then return as a warm front Sunday night into Monday. This will spread a good slug of showers across the area during the aforementioned time frame. Along and south of the boundary PWATS surpass 1.5", but thankfully due to clouds and limited instability thunder was still kept out of the forecast. This will also cut down on rain rates and threat of flooding in areas that were hard hit a week ago and clean up efforts are ongoing. At this time, have not ruled out potential flooding given rainfall amounts between 1-2", however confidence is not high enough to include in the hazardous weather outlook. Below normal H5 heights dominate through mid week which spells below normal temps with highs only in the 70s and 60s across higher elevations. Heights build toward the end of the period allowing MaxT to return to normal numbers. With passing mid level waves showers and thunderstorms return during the peak heating hours. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... Two areas of thunderstorms are likely to affect many terminals in the first six hours of the 18Z TAFs. One area of thunderstorms has consolidated across the northern West Virginia panhandle and is moving north-northeast, while the cold front currently across central Ohio will move east through the afternoon hours. Attempted to time out the thunderstorm groups as best as possible by using a tempo group for each round of storms. With HLG having dropped to 1/2 mile visibility in heavy rain, have already dropped several locations to 1 mile visibility in the initial tempo group. Gusts to at least 30 kt will be possible in any thunderstorm. Most precipitation will have moved east of the forecast area by sunset. Behind the front, winds will shift from the S-SW to the west and remain around 10 kt overnight. A period of low clouds is expected late tonight into Saturday morning, but so far the only sites expected to have a ceiling will be FKL/DUJ. Depending on extent of cloud cover, MVFR/IFR ceilings will also be possible at BVI/PIT/AGC/LBE. All terminals should return .OUTLOOK... Restrictions are likely again with Mon low pressure. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && 98/33
Hazardous weather outlook, Aug 4, 3:09 AM EDT, 14 hours 15 minutes before
Hazardous Weather Outlook National Weather Service Pittsburgh PA 309 AM EDT Fri Aug 4 2017 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021-509>514-050715- Garrett-Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson- Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-Forest- Lawrence-Butler-Clarion-Beaver-Allegheny-Armstrong-Indiana- Washington-Greene-Westmoreland-Westmoreland Ridges-Fayette- Fayette Ridges-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 309 AM EDT Fri Aug 4 2017 This Hazardous Weather Outlook is for western Maryland, east central Ohio, northwest Pennsylvania, southwest Pennsylvania, west central Pennsylvania, western Pennsylvania, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...Today and Tonight. Scattered severe thunderstorms are possible this afternoon and early evening with a crossing cold front. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. 07
In the hours before
Local storm report, Aug 4, 4:37 PM EDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
437 PM EDT FRI AUG 04 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0340 PM TSTM WND DMG PRESIDENT 41.46N 79.56W
08/04/2017 VENANGO PA 911 CALL CENTER
MULTIPLE TREES DOWN ON PRESIDENT RD.
&&
EVENT NUMBER PBZ1701991
RCCLocal storm report, Aug 4, 4:45 PM EDT, 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
445 PM EDT FRI AUG 04 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0250 PM TSTM WND DMG NEW CASTLE 41.00N 80.35W
08/04/2017 LAWRENCE PA 911 CALL CENTER
SEVERAL REPORTS OF TREES DOWN IN AND AROND NEW CASTLE.
&&
EVENT NUMBER PBZ1701992
AMILLERLocal storm report, Aug 4, 4:53 PM EDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
453 PM EDT FRI AUG 04 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0430 PM HAIL 1 N PATTERSONVILLE 40.69N 81.05W
08/04/2017 E1.00 INCH CARROLL OH PUBLIC
&&
EVENT NUMBER PBZ1701993
AMILLERLocal storm report, Aug 4, 5:06 PM EDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
506 PM EDT FRI AUG 04 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0230 PM TSTM WND DMG 2 S BRIDGEVILLE 40.33N 80.11W
08/04/2017 ALLEGHENY PA NWS EMPLOYEE
TREES DOWN AT 1128 LAKEVIEW DR.
&&
EVENT NUMBER PBZ1701994
RCCLocal storm report, Aug 4, 5:14 PM EDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
514 PM EDT FRI AUG 04 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0427 PM TSTM WND DMG 3 N CARROLLTON 40.62N 81.09W
08/04/2017 CARROLL OH LAW ENFORCEMENT
MULTIPLE TREES DOWN
&&
EVENT NUMBER PBZ1701995
RCCSpecial weather statement, Aug 4, 5:14 PM EDT, 10 minutes before
Special Weather Statement National Weather Service Pittsburgh PA 514 PM EDT FRI AUG 4 2017 OHZ040-041-050-042145- Jefferson-Columbiana-Carroll- 514 PM EDT FRI AUG 4 2017 ...A STRONG THUNDERSTORM CAPABLE OF PRODUCING HAIL AND GUSTY WIND WILL AFFECT NORTHWESTERN JEFFERSON...SOUTH CENTRAL COLUMBIANA AND EAST CENTRAL CARROLL COUNTIES... At 514 PM EDT, a strong thunderstorm was located near Carrollton, moving northeast at 30 mph. Wind gusts up to 55 mph and hail up to the size of nickels are possible with this storm. Locations impacted include... Carrollton... Salineville... Irondale... Summitville... Hammondsville... Mechanicstown... Harlem Springs... This storm may intensify, so monitor local radio or television stations for additional information and possible warnings from the National Weather Service. LAT...LON 4051 8106 4059 8108 4074 8079 4056 8068 TIME...MOT...LOC 2114Z 245DEG 28KT 4057 8100 Kramar
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 12:58 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Harrison, Tuscarawas | 32 min |
| Aug 4, 1:09 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont | 36 min |
| Aug 4, 1:26 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont | 49 min |
| Aug 4, 2:01 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 44 min |
| Aug 4, 3:37 PM EDT | Special Weather Statement | PBZ | Tuscarawas | 38 min |
| Aug 4, 4:02 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Tuscarawas | 28 min |
| Aug 4, 4:25 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana | 50 min |
| Aug 4, 4:59 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 31 min |
| Aug 4, 5:14 PM EDT | Special Weather Statement | PBZ | Columbiana | 31 min |
| Aug 4, 6:35 PM EDT | Special Weather Statement | PBZ | Carroll, Columbiana | 40 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 2017Every 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.