Alert archive / West Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Charleston, WV

February 25, 2017Boone County, West Virginia

NWS Charleston, WV issued this special weather statement at Feb 25, 2017, 2:54 AM EST for Boone County, West Virginia. It was in force for 36 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: Feb 25, 2017, 2:54 AM EST (07:54 UTC)
Expired: Feb 25, 2017, 3:30 AM EST
In force: 36 min
Issued by: NWS Charleston, WV

County Boone County, WV

The radar

The Charleston,WV radar (KRLX), 72 km from the middle of the area, began a volume at 07:57 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 00:00Z, 7.9 hours before the alert went out and 219 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: 416 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 1770 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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 Feb 25, 2:46 AM EST, 8 minutes earlier.

Area forecast discussion, Feb 25, 2:46 AM EST, 8 minutes before

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Hazardous weather outlook, Feb 25, 2:48 AM EST, 6 minutes before

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In the hours before

Special weather statement, Feb 25, 12:30 AM EST, 2 hours 24 minutes before

Special Weather Statement
National Weather Service Charleston WV
1230 AM EST SAT FEB 25 2017

KYZ101>103-105-250600-
Boyd-Greenup-Carter-Lawrence-
1230 AM EST SAT FEB 25 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT BOYD...NORTHWESTERN
LAWRENCE...SOUTHEASTERN GREENUP AND CARTER COUNTIES...

At 1229 AM EST, radar indicated strong thunderstorms were located
along a line extending from near Carter Caves State Park to
Newfoundland to Lenox. Movement was northeast at 80 mph.

Wind gusts of 50 to 55 mph and dime size hail are possible with
these storms. These winds may bring down small limbs and weakly
rooted trees.

Locations impacted include...
Ashland, Grayson, Olive Hill, Cannonsburg, Grayson Lake State Park,
Carter Caves State Park, Greenup, Webbville, Princess, Coalton,
Denton, Greenbo Lake, Oldtown, Naples, Rush, Franklin Furnace,
Flatwoods, Russell, Raceland and Worthington.

This includes Interstate 64 in Kentucky between mile markers 159 and
190.

LAT...LON 3859 8284 3856 8279 3856 8276 3851 8271
      3836 8260 3814 8291 3817 8292 3817 8298
      3820 8301 3820 8304 3818 8305 3823 8309
      3824 8314 3827 8317 3835 8318
TIME...MOT...LOC 0529Z 218DEG 68KT 3833 8307 3812 8310 3795 8322

30

Local storm report, Feb 25, 1:15 AM EST, 1 hour 39 minutes before

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Local storm report, Feb 25, 1:47 AM EST, 1 hour 7 minutes before

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Special weather statement, Feb 25, 2:26 AM EST, 28 minutes before

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Special weather statement, Feb 25, 2:37 AM EST, 17 minutes before

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Special weather statement, Feb 25, 2:54 AM EST, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 25, 1:04 AM EST	Severe Thunderstorm Warning	RLX	Cabell, Mason	25 min
Feb 25, 2:26 AM EST	Special Weather Statement	RLX	Mason	34 min
Feb 25, 2:37 AM EST	Special Weather Statement	RLX	Cabell, Lincoln, Wayne	23 min
Feb 25, 3:00 AM EST	Special Weather Statement	RLX	Cabell, Jackson, Lincoln, Mason, Putnam	30 min
Feb 25, 5:39 AM EST	Special Weather Statement	RLX	McDowell, Wyoming	36 min
Feb 25, 6:13 AM EST	Special Weather Statement	RLX	Raleigh	32 min
Feb 25, 6:41 AM EST	Special Weather Statement	RLX	Nicholas, Webster	34 min
Feb 25, 7:18 AM EST	Special Weather Statement	RLX	Pocahontas	27 min
Feb 25, 7:44 AM EST	Special Weather Statement	RLX	Pocahontas	31 min
Feb 24, 11:03 PM EST	Special Weather Statement	RLX	Perry	27 min
Feb 24, 11:59 PM EST	Special Weather Statement	RLX	Vinton	31 min
Feb 25, 12:15 AM EST	Special Weather Statement	RLX	Jackson	30 min
Feb 25, 12:25 AM EST	Special Weather Statement	RLX	Vinton	35 min
Feb 25, 12:43 AM EST	Severe Thunderstorm Warning	RLX	Lawrence	32 min
Feb 24, 11:32 PM EST	Special Weather Statement	RLX	Greenup	43 min
Feb 25, 12:30 AM EST	Special Weather Statement	RLX	Boyd, Carter	30 min
Feb 25, 5:09 AM EST	Special Weather Statement	RLX	Buchanan, Dickenson	36 min

Nearby

Special Weather Statements in West Virginia, 2017 Every 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.