Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 82, NWS Jackson, KY
NWS Jackson, KY issued this severe thunderstorm warning at Aug 7, 2021, 12:52 PM EDT for 4 counties in Kentucky. It was in force for 23 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, 12:52 PM EDT (16:52 UTC)
- Expired
- Aug 7, 2021, 1:15 PM EDT
- In force
- 23 min
- Issued by
- NWS Jackson, KY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Breathitt County, KY, Floyd County, KY, Knott County, KY, Magoffin County, KY
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 4.9 hours before the alert went out and 220 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
- 815 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 973 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
818 WUUS53 KJKL 071652 SVRJKL KYC025-071-119-153-071715- /O.NEW.KJKL.SV.W.0082.210807T1652Z-210807T1715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service JACKSON KY 1252 PM EDT Sat Aug 7 2021 The National Weather Service in JACKSON KY has issued a * Severe Thunderstorm Warning for... Northwestern Knott County in southeastern Kentucky... Northwestern Floyd County in southeastern Kentucky... East central Breathitt County in southeastern Kentucky... Southeastern Magoffin County in southeastern Kentucky... * Until 115 PM EDT. * At 1252 PM EDT, a severe thunderstorm was located over Ordway, or 12 miles southeast of Salyersville, moving south at 10 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will be near... Orchard around 105 PM EDT. Gunlock around 110 PM EDT. Mid around 115 PM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3762 8307 3768 8287 3749 8272 3742 8304 TIME...MOT...LOC 1652Z 343DEG 10KT 3758 8296 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ RAY
2 follow-up statements
815 WWUS53 KJKL 071705 SVSJKL Severe Weather Statement National Weather Service JACKSON KY 105 PM EDT Sat Aug 7 2021 KYC025-071-119-153-071715- /O.CON.KJKL.SV.W.0082.000000T0000Z-210807T1715Z/ Knott KY-Floyd KY-Breathitt KY-Magoffin KY- 105 PM EDT Sat Aug 7 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR NORTHWESTERN KNOTT...NORTHWESTERN FLOYD...EAST CENTRAL BREATHITT AND SOUTHEASTERN MAGOFFIN COUNTIES... At 104 PM EDT, a severe thunderstorm was located over Gunlock, or 14 miles southwest of Prestonsburg, moving south at 10 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Mid and Handshoe. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3762 8307 3768 8287 3749 8272 3742 8304 TIME...MOT...LOC 1704Z 343DEG 10KT 3755 8295 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ RAY
435
WWUS53 KJKL 071711
SVSJKL
Severe Weather Statement
National Weather Service JACKSON KY
111 PM EDT Sat Aug 7 2021
KYC025-071-119-153-071721-
/O.EXP.KJKL.SV.W.0082.000000T0000Z-210807T1715Z/
Knott KY-Floyd KY-Breathitt KY-Magoffin KY-
111 PM EDT Sat Aug 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN KNOTT...
NORTHWESTERN FLOYD...EAST CENTRAL BREATHITT AND SOUTHEASTERN MAGOFFIN
COUNTIES WILL EXPIRE AT 115 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 3762 8307 3768 8287 3749 8272 3742 8304
TIME...MOT...LOC 1711Z 343DEG 10KT 3754 8295
$$
RAYThe office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 12:27 PM EDT | Special Weather Statement | JKL | Johnson | 33 min |
| Aug 7, 12:49 PM EDT | Areal Flood Advisory | JKL | Floyd, Johnson, Magoffin, Martin, Pike | 2 hr |
| Aug 7, 12:50 PM EDT | Special Weather Statement | JKL | Floyd | 40 min |
| Aug 7, 1:22 PM EDT | Areal Flood Advisory | JKL | Knott, Perry | 2 hr |
| Aug 7, 1:36 PM EDT | Special Weather Statement | JKL | Martin | 24 min |
| Aug 7, 1:51 PM EDT | Special Weather Statement | JKL | Knott | 39 min |
| Aug 7, 2:17 PM EDT | Special Weather Statement | JKL | Pike | 43 min |
| Aug 7, 2:20 PM EDT | Special Weather Statement | JKL | Leslie, Letcher, Perry | 40 min |
| Aug 7, 2:28 PM EDT | Special Weather Statement | JKL | Letcher | 32 min |
| Aug 7, 2:41 PM EDT | Areal Flood Advisory | JKL | Letcher, Pike | 3 hr |
| Aug 7, 3:00 PM EDT | Special Weather Statement | JKL | Pike | 30 min |
| Aug 7, 3:33 PM EDT | Special Weather Statement | JKL | Harlan | 57 min |
| Aug 7, 3:34 PM EDT | Areal Flood Advisory | JKL | Harlan, Leslie, Perry | 3 hr |
| Aug 7, 3:43 PM EDT | Severe Thunderstorm Warning | JKL | Harlan | 30 min |
| Aug 7, 4:09 PM EDT | Areal Flood Advisory | JKL | Harlan | 3 hr |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2021Every severe thunderstorm warning 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.