Alert archive / Ohio / Special Weather Statements in 2021

Special Weather Statement, NWS Charleston, WV

May 4, 2021Morgan County, Ohio

NWS Charleston, WV issued this special weather statement at May 4, 2021, 7:31 AM EDT for Morgan County, Ohio. It was in force for 44 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 4, 2021, 7:31 AM EDT (11:31 UTC)
Expired: May 4, 2021, 8:15 AM EDT
In force: 44 min
Issued by: NWS Charleston, WV

County Morgan County, OH

The radar

The Charleston,WV radar (KRLX), 152 km from the middle of the area, began a volume at 11:30 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.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 11.5 hours before the alert went out and 176 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: 340 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 674 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 151 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted.

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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 4, 6:45 AM EDT, 46 minutes earlier.

Area forecast discussion, May 4, 6:45 AM EDT, 46 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, May 4, 3:52 AM EDT, 3 hours 39 minutes before

Hazardous Weather Outlook
National Weather Service Charleston WV
352 AM EDT Tue May 4 2021

KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011-
013>020-024>034-039-040-515>526-050800-
Greenup-Carter-Boyd-Lawrence KY-Perry-Morgan-Athens-Washington-
Jackson OH-Vinton-Meigs-Gallia-Lawrence OH-Dickenson-Buchanan-Wayne-
Cabell-Mason-Jackson WV-Wood-Pleasants-Tyler-Lincoln-Putnam-Kanawha-
Roane-Wirt-Calhoun-Ritchie-Doddridge-Mingo-Logan-Boone-Clay-Braxton-
Gilmer-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-
352 AM EDT Tue May 4 2021

This Hazardous Weather Outlook is for northeast Kentucky, southeast
Ohio, southwest Virginia and much of West Virginia.

.DAY ONE...Today and Tonight.

Strong to severe thunderstorms are possible today with active
weather spreading across the area. The primary threat is damaging
wind and/or large hail. Also, an isolated weak tornado cannot be
ruled out especially near the surrounding Tri-state area. Possible
torrential downpours could lead to isolated flash flooding especially
near flood prone and poor drainage areas or areas that were
previously saturated from yesterday. The area is under a marginal
threat for severe thunderstorms and excessive rainfall.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability is low although for early Wednesday, a cold front
will push through possibly promoting some thunderstorm activity
and/or heavy rain showers which could cause some water issues to
previously saturated areas.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions by calling the toll-free spotter hotline, or by other
methods detailed at www.weather.gov/rlx/reports.

In the hours before

Special weather statement, May 4, 7:31 AM EDT, 0 minutes before

Special Weather Statement
National Weather Service Charleston WV
731 AM EDT Tue May 4 2021

OHZ066-067-041215-
Morgan-Perry-
731 AM EDT Tue May 4 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN PERRY AND NORTHERN
MORGAN COUNTIES...

At 730 AM EDT, a strong thunderstorm was located over Shawnee, moving
east at 40 mph.

Winds in excess of 30 mph and pea size hail are possible with this
storm.

Locations impacted include...
New Lexington, McConnelsville, Shawnee, Crooksville, New
Straitsville, Malta, Corning, Bristol, Hemlock, Rendville, Eagleport
and Hackney.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 3976 8165 3975 8164 3967 8164 3966 8159
      3965 8159 3955 8209 3956 8226 3959 8226
      3959 8228 3969 8232 3977 8207
TIME...MOT...LOC 1130Z 250DEG 35KT 3963 8219

14

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 4, 11:01 AM EDT	Flash Flood Warning	RLX	Pleasants, Ritchie, Tyler, Wirt, Wood	3 hr
May 4, 11:59 AM EDT	Flash Flood Warning	RLX	Doddridge, Harrison, Ritchie, Tyler	5 hr
May 4, 2:06 PM EDT	Areal Flood Warning	RLX	Ritchie, Tyler	3 hr
May 4, 2:35 PM EDT	Flash Flood Watch	RLX	Braxton, Calhoun, Clay, Doddridge, Gilmer, Harrison and 11 more	17 hr
May 4, 12:22 PM EDT	Special Weather Statement	RLX	Buchanan	38 min

Nearby

Special Weather Statements in Ohio, 2021 Every special weather statement in 2021

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.