Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, KY

August 7, 2021Pike County, Kentucky

NWS Jackson, KY issued this special weather statement at Aug 7, 2021, 3:00 PM EDT for Pike County, Kentucky. It was in force for 30 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
Aug 7, 2021, 3:00 PM EDT (19:00 UTC)
Expired
Aug 7, 2021, 3:30 PM EDT
In force
30 min
Issued by
NWS Jackson, KY
Hail
0.50 in
Wind
40

County Pike County, KY

The radar

The Charleston,WV radar (KRLX), 95 km from the middle of the area, began a volume at 19:01 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

Roanoke, VA (KRNK), launched 12:00Z, 7.0 hours before the alert went out and 236 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2021-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2021-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1171 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

862 
WWUS83 KJKL 071900
SPSJKL

Special Weather Statement
National Weather Service JACKSON KY
300 PM EDT Sat Aug 7 2021
 
KYZ120-071930-
Pike KY-
300 PM EDT Sat Aug 7 2021

...A strong thunderstorm will impact portions of east central Pike
County through 330 PM EDT...

At 300 PM EDT, Doppler radar was tracking a strong thunderstorm over
Biggs, or 11 miles north of Breaks Interstate, moving southeast at 20
mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

This strong thunderstorm will be near...
  Fedscreek and Jamboree around 305 PM EDT.
  Mouthcard around 310 PM EDT.
  Toonerville around 315 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

&&

LAT...LON 3735 8224 3737 8242 3761 8216 3759 8215
      3759 8213 3758 8213 3757 8214 3755 8213
      3756 8208 3753 8205 3755 8204 3754 8202
      3754 8197
TIME...MOT...LOC 1900Z 313DEG 17KT 3745 8224 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

$$

GREIF

The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 7, 12:27 PM EDTSpecial Weather StatementJKLJohnson33 min
Aug 7, 12:49 PM EDTAreal Flood AdvisoryJKLFloyd, Johnson, Magoffin, Martin, Pike2 hr
Aug 7, 12:50 PM EDTSpecial Weather StatementJKLFloyd40 min
Aug 7, 12:52 PM EDTSevere Thunderstorm WarningJKLBreathitt, Floyd, Knott, Magoffin23 min
Aug 7, 1:22 PM EDTAreal Flood AdvisoryJKLKnott, Perry2 hr
Aug 7, 1:36 PM EDTSpecial Weather StatementJKLMartin24 min
Aug 7, 1:51 PM EDTSpecial Weather StatementJKLKnott39 min
Aug 7, 2:17 PM EDTSpecial Weather StatementJKLPike43 min
Aug 7, 2:20 PM EDTSpecial Weather StatementJKLLeslie, Letcher, Perry40 min
Aug 7, 2:28 PM EDTSpecial Weather StatementJKLLetcher32 min
Aug 7, 2:41 PM EDTAreal Flood AdvisoryJKLLetcher, Pike3 hr
Aug 7, 3:33 PM EDTSpecial Weather StatementJKLHarlan57 min
Aug 7, 3:34 PM EDTAreal Flood AdvisoryJKLHarlan, Leslie, Perry3 hr
Aug 7, 3:43 PM EDTSevere Thunderstorm WarningJKLHarlan30 min
Aug 7, 4:09 PM EDTAreal Flood AdvisoryJKLHarlan3 hr

Nearby

Special Weather Statements in Kentucky, 2021Every 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.