Alert archive / Ohio / Special Weather Statements in 2017
Special Weather Statement, NWS Charleston, WV
NWS Charleston, WV issued this special weather statement at May 19, 2017, 5:55 PM EDT for Perry County, Ohio. It was in force for 35 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
- May 19, 2017, 5:55 PM EDT (21:55 UTC)
- Expired
- May 19, 2017, 6:30 PM EDT
- In force
- 35 min
- Issued by
- NWS Charleston, WV
County Perry County, OH
The radar
The Cincinnati radar (KILN), 138 km from the middle of the area, began a volume at 21:58 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 12:00Z, 9.9 hours before the alert went out and 135 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
- 387 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1118 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, WV wrote its last area forecast discussion before this special weather statement went out at May 19, 5:22 PM EDT, 33 minutes earlier.
Area forecast discussion, May 19, 5:22 PM EDT, 33 minutes before
Area Forecast Discussion National Weather Service Charleston WV 522 PM EDT Fri May 19 2017 .SYNOPSIS... Cold front moves in from the west tonight, and then lifts back north, keeping area unstable this weekend. A new cold front crosses from the west Sunday night. High pressure Monday night. && .NEAR TERM /THROUGH SATURDAY/... As of 515 PM Friday Surface low pressure located just northwest of the CWA with a cold front extending south-southwestward from it, eventually tailing back to the southwest through the lower Ohio River Valley as of 5 PM. CAPE values were up around 2500 J/kg ahead of the storms but the shear was largely north of the low pressure center and most of the storms. However, 15 to 20 kts h85 flow and 25 to 30 kts mean h85-h5 flow could still support some storm organization. Adjusted PoPs, clouds and thunder to better reflect line of storms along cold front traversing east across the area overnight. Severe weather wording added where watch 247 is in effect until 11 pm over much of the middle Ohio Valley, then the intensity and coverage decrease overnight. As of 205 PM Friday... The convection that moved into the southern CWA this morning has completely disrupted the overall synoptic setup, so there is some disarray to the activity this afternoon and what is expected later tonight. Got a mesohigh developed where the decaying convection/stratiform rain shield resides from the morning activity, with a northerly moving outflow boundary sparking the next round of convection across the northern tier. This has made the warm front over the area all but impossible to locate. The cool mesohigh has either made a pocket within the warm sector that is trying to move north, or it is holding up the front. Either way, modification of what is left over of heating today could be enough to get another round of isolated convection into the evening as the synoptic flow of the warm sector gets going again. High res models indicating another wave of activity moving in from the northwest heading into early tonight, so ramp the POPs up to likely in this area. Overall the activity has remained largely below severe limits, and expect that trend to continue, although given the slight risk that was extended into the area, isolated severe cannot be ruled out. Flow aloft still remains a limiting factor here. Will need to watch the coal fields for additional rain with well over an inch falling earlier this morning. && .SHORT TERM /SATURDAY NIGHT/... As of 230 PM Friday... Saturday night will feature a lifting warm front to the northeast. Showers and thunderstorms will be possible during this time. Any storm that does move across the area will be capable of heavy rain. Additional rain will accompany the cold front on Sunday. As the frontal system moves east, rainfall will diminish during the overnight hours Sunday. Areas that have already received heavy rainfall from Friday morning and afternoons storms should be closely monitored for potential flash flooding during this weekend. && .LONG TERM /SUNDAY THROUGH FRIDAY/... As of 230 PM Friday... A period of cooler and drier air will follow the exiting cold front early Monday. However, the chances for rain return by midweek with the next frontal system. Temperatures will return to a more seasonable level during this period. && .AVIATION /21Z FRIDAY THROUGH WEDNESDAY/... As of 155 PM Friday... Low confidence aviation forecast given the decaying convection over southern West Virginia and new convection firing across the northern terminals. Nature of it is scattered, and the life cycles of storms that form have been relatively short over the last hour, so this makes the prevailing conditions tricky. Storms are out there and near terminals, and have done my best to get the sites that could see TSRA into TEMPOs over the next few hours. Expecting partial clearing tonight with lingering mid to high level clouds in place, but with rain, added fog to the mix. There could be many factors in play here that could thwart that potential however, which adds to the lower than normal confidence for this issuance. As with any thunderstorm type activity, the mesoscale activity is going to be changing the larger scale environment for tonight. For the ongoing storms, some AMD may be necessary. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 18Z SATURDAY... FORECAST CONFIDENCE: Low. ALTERNATE SCENARIOS: Amendments likely for changing environments from thunderstorm/rain passage. EXPERIMENTAL TABLE OF FLIGHT CATEGORY OBJECTIVELY SHOWS CONSISTENCY OF WFO FORECAST TO AVAILABLE MODEL INFORMATION: H = HIGH: TAF CONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL. M = MEDIUM: TAF HAS VARYING LEVEL OF CONSISTENCY WITH MODELS. L = LOW: TAF INCONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL. UTC 1HRLY 21 22 23 00 01 02 03 04 05 06 07 08 EDT 1HRLY 17 18 19 20 21 22 23 00 01 02 03 04 CRW CONSISTENCY H H H H H H H H H H H L HTS CONSISTENCY H H H H H H H H H H H M BKW CONSISTENCY H H H H H H H H H H L L EKN CONSISTENCY H H H H H H H M M L L M PKB CONSISTENCY H H H H H H H H H L H M CKB CONSISTENCY H H H H H H H H H H H L AFTER 18Z SATURDAY... Isolated IFR possible in showers and thunderstorms through Sunday with afternoon timeframe most likely occurrence. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && SYNOPSIS...ARJ/26/TRM NEAR TERM...TRM/26 SHORT TERM...JB LONG TERM...JB AVIATION...26
Hazardous weather outlook, May 19, 3:30 PM EDT, 2 hours 25 minutes before
Hazardous Weather Outlook National Weather Service Charleston WV 330 PM EDT Fri May 19 2017 KYZ101>103-105-OHZ087-VAZ003-004-WVZ005-006-013>015-024>028-030>034- 039-040-515>526-201930- Greenup-Carter-Boyd-Lawrence KY-Lawrence OH-Dickenson-Buchanan-Wayne- Cabell-Lincoln-Putnam-Kanawha-Mingo-Logan-Boone-Clay-Braxton-Lewis- Harrison-Taylor-McDowell-Wyoming-Upshur-Barbour-Northwest Raleigh- Southeast Raleigh-Northwest Fayette-Southeast Fayette- Northwest Nicholas-Southeast Nicholas-Northwest Webster- Southeast Webster-Northwest Pocahontas-Southeast Pocahontas- Northwest Randolph-Southeast Randolph- 330 PM EDT Fri May 19 2017 This Hazardous Weather Outlook is for northeast Kentucky, portions of southeast Ohio, southwest Virginia, and portions of central West Virginia, northeast West Virginia, northern West Virginia, southeast West Virginia, southern West Virginia and western West Virginia. .DAY ONE...This Afternoon and Tonight. No hazardous weather is expected at this time. .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. OHZ066-067-075-076-083>086-WVZ007>011-016>020-029-201930- Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia-Mason- Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie-Doddridge- Gilmer- 330 PM EDT Fri May 19 2017 ...SEVERE THUNDERSTORM WATCH 247 IN EFFECT UNTIL 11 PM EDT THIS EVENING... This Hazardous Weather Outlook is for portions of southeast Ohio, and portions of central West Virginia, northern West Virginia and western West Virginia. .DAY ONE...This Afternoon and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
In the hours before
Special weather statement, May 19, 1:16 PM EDT, 4 hours 39 minutes before
Special Weather Statement
National Weather Service Charleston WV
116 PM EDT FRI MAY 19 2017
OHZ075-083>085-191745-
Jackson-Athens-Meigs-Vinton-
116 PM EDT FRI MAY 19 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN MEIGS...
NORTHEASTERN JACKSON...SOUTHWESTERN ATHENS AND EASTERN VINTON
COUNTIES...
At 115 PM EDT, a strong thunderstorm was located near Wellston,
moving northeast at 40 mph.
Winds in excess of 40 mph and half inch hail are possible with this
storm.
Locations impacted include...
Jackson, Wellston, Mcarthur, Albany, Lake Hope State Park, Hamden,
Zaleski, Wilkesville, Radcliffe and Carpenter.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 3939 8235 3926 8206 3903 8238 3904 8243
3898 8244 3894 8250 3902 8263 3939 8241
TIME...MOT...LOC 1715Z 214DEG 34KT 3904 8251
09Special weather statement, May 19, 5:55 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Charleston WV
555 PM EDT FRI MAY 19 2017
OHZ066-192230-
Perry-
555 PM EDT FRI MAY 19 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHERN PERRY COUNTY...
At 554 PM EDT, a strong thunderstorm was located over Hebron, or near
Heath, moving east at 25 mph.
Wind gusts up to 50 mph and dime size hail are possible with this
storm.
Locations impacted include...
Somerset, Perry State Forest, Thornport, Harbor Hills, Crooksville,
Thornville and Glenford.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 3993 8242 3992 8241 3991 8217 3982 8217
3981 8207 3971 8210 3978 8240 3983 8240
3984 8247 3993 8246
TIME...MOT...LOC 2154Z 281DEG 22KT 3997 8248
17The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 7:53 AM EDT | Special Weather Statement | RLX | Logan, Mingo | 37 min |
| May 19, 8:33 AM EDT | Special Weather Statement | RLX | Logan, Mingo | 42 min |
| May 19, 10:32 AM EDT | Special Weather Statement | RLX | Logan, Mingo, Wyoming | 118 min |
| May 19, 12:10 PM EDT | Flash Flood Warning | RLX | Logan, McDowell, Mingo, Wyoming | 3 hr |
| May 19, 7:43 PM EDT | Special Weather Statement | RLX | Cabell, Mason | 32 min |
| May 19, 1:16 PM EDT | Special Weather Statement | RLX | Jackson, Vinton | 29 min |
| May 19, 1:19 PM EDT | Severe Thunderstorm Warning | RLX | Athens, Jackson, Meigs, Vinton | 26 min |
| May 19, 6:19 PM EDT | Severe Thunderstorm Warning | RLX | Athens, Jackson, Meigs, Morgan, Perry, Vinton | 56 min |
| May 19, 7:15 PM EDT | Special Weather Statement | RLX | Morgan, Washington | 30 min |
| May 19, 8:30 AM EDT | Special Weather Statement | RLX | Buchanan | 45 min |
Nearby
Special Weather Statements in Ohio, 2017Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.