Alert archive / Indiana / Winter Storm Warnings in 2021
Winter Storm Warning 1, NWS Louisville, KY
NWS Louisville, KY issued this winter storm warning at Feb 9, 2021, 1:39 AM EST for Jefferson County, Scott County, Indiana. It was in force for 5 hr. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 9, 2021, 1:39 AM EST (06:39 UTC)
- Expired
- Feb 9, 2021, 7:00 AM EST
- In force
- 5 hr
- Issued by
- NWS Louisville, KY
Counties Jefferson County, IN, Scott County, IN
The radar
The Louisville radar (KLVX), 90 km from the middle of the area, began a volume at 06:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 9, 4:52 AM EST | SNOW 3 | Hanover, IN | CORRECTS SOURCE OF PREVIOUS SNOW REPORT. |
| Feb 9, 4:52 AM EST | SNOW 3 | Hanover, IN | |
| Feb 9, 7:00 AM EST | SNOW 5 | 1 E Scottsburg, IN | REPORT VIA LOCAL MEDIA SOCIAL MEDIA PAGE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.7 hours before the alert went out and 173 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1272 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 257 m²/s²
- 0-3 km storm-relative helicity
- 475 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
968 WWUS43 KLMK 090639 WSWLMK URGENT - WINTER WEATHER MESSAGE National Weather Service Louisville KY 139 AM EST Tue Feb 9 2021 ...Snow and Wintry Mix Early This Morning... ...Significant Sleet and Ice Accumulations Expected Late Tuesday through Thursday.. .An upper level disturbance and surface trough is bringing wintry precipitation to the region early this morning. Some freezing rain or freezing drizzle is expected, and may create a light glaze. A secondary winter weather event is expected to begin late Tuesday as a wintry mix of sleet and freezing rain develop across the region. Current forecasts suggest that significant amounts of freezing rain and sleet will be possible across portions of southern Indiana and Central Kentucky. For this reason, a Winter Storm Watch has been issued. INZ078-079-091200- /O.UPG.KLMK.WW.Y.0008.000000T0000Z-210209T1200Z/ /O.NEW.KLMK.WS.W.0001.210209T0639Z-210209T1200Z/ Scott-Jefferson- Including the cities of Scottsburg and Madison 139 AM EST Tue Feb 9 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 7 AM EST THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to 3 inches and ice accumulations of a light glaze. Total snow accumulations of 4 to 6 inches. * WHERE...Scott and Jefferson Counties. * WHEN...Until 7 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For Indiana Road Conditions please visit https://pws.trafficwise.org/pws && $$ INZ083-084-089>092-KYZ030>033-091200- /O.CON.KLMK.WW.Y.0008.000000T0000Z-210209T1200Z/ /O.CON.KLMK.WS.A.0001.210210T0600Z-210211T1800Z/ Dubois-Crawford-Perry-Harrison-Floyd-Clark-Jefferson-Oldham- Trimble-Henry- Including the cities of Jasper, English, Tell City, Corydon, New Albany, Jeffersonville, Louisville, La Grange, Bedford, Milton, and New Castle 139 AM EST Tue Feb 9 2021 /1239 AM CST Tue Feb 9 2021/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST /6 AM CST/ THIS MORNING... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON... * WHAT...For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of around one inch and ice accumulations of less than one tenth of an inch. For the Winter Storm Watch, heavy mixed precipitation possible. Total icing accumulations of one quarter to one half inch will be possible. * WHERE...For the Winter Weather Advisory, portions of south central Indiana and north central Kentucky. For the Winter Storm Watch, portions of south central Indiana and central Kentucky. * WHEN...For the Winter Weather Advisory, until 7 AM EST /6 AM CST/ Tuesday. For the Winter Storm Watch, from late Tuesday night through Thursday afternoon. * IMPACTS...For the Winter Weather Advisory, slick roads and sidewalks are possible. For the Winter Storm Watch, power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. In Indiana, for Indiana Road Conditions please visit https://pws.trafficwise.org/pws In Kentucky, for Kentucky Road Conditions please visit https://goky.ky.gov && $$ INZ076-077-091200- /O.CON.KLMK.WW.Y.0008.000000T0000Z-210209T1200Z/ Orange-Washington- Including the cities of Paoli and Salem 139 AM EST Tue Feb 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING... * WHAT...Mixed precipitation expected. Total snow accumulations of two to three inches and ice accumulations less than one tenth of an inch. * WHERE...South central Indiana and portions of north central Kentucky. * WHEN...Through 7 AM EST /6 AM CST/ Tuesday. * IMPACTS...Plan on slick roads and sidewalks. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For Indiana Road Conditions please visit https://pws.trafficwise.org/pws && $$ KYZ023>029-034>043-045>049-053>057-061>067-070-071-074-076>078- 091200- /O.CON.KLMK.WS.A.0001.210210T0600Z-210211T1800Z/ Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt-Shelby- Franklin-Scott-Harrison-Spencer-Anderson-Woodford-Fayette-Bourbon- Nicholas-Nelson-Washington-Mercer-Jessamine-Clark-Larue-Marion- Boyle-Garrard-Madison-Butler-Edmonson-Hart-Green-Taylor-Casey- Lincoln-Logan-Warren-Barren-Metcalfe-Adair-Russell- Including the cities of Lewisport, Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield, Elizabethtown, Shepherdsville, Shelbyville, Frankfort, Georgetown, Cynthiana, Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle, Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester, Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown, Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty, Stanford, Russellville, Bowling Green, Glasgow, Edmonton, Columbia, and Jamestown 139 AM EST Tue Feb 9 2021 /1239 AM CST Tue Feb 9 2021/ ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON... * WHAT...Heavy mixed precipitation possible. Total icing accumulations of one tenth to one half inch are likely and locally higher amounts will be possible. The heaviest icing is expected in a zone parallel to the Western Kentucky and Bluegrass Parkways. * WHERE...Portions of east central, north central, northwest and south central Kentucky. * WHEN...From late Tuesday night through Thursday afternoon. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ 13
2 follow-up statements
169 WWUS43 KLMK 090911 WSWLMK URGENT - WINTER WEATHER MESSAGE National Weather Service Louisville KY 411 AM EST Tue Feb 9 2021 ...Snow and Wintry Mix Early This Morning... ...Significant Sleet and Ice Accumulations Expected Late Tuesday through Thursday... .An upper level disturbance and surface trough is bringing wintry precipitation to the region early this morning. Some freezing rain or freezing drizzle is expected, and may create a light glaze. A secondary winter weather event is expected to begin late Tuesday as a wintry mix of sleet and freezing rain develop across the region. Current forecasts suggest that significant amounts of freezing rain and sleet will be possible across portions of southern Indiana and Central Kentucky. For this reason, a Winter Storm Watch has been issued. INZ078-079-091200- /O.CON.KLMK.WS.W.0001.000000T0000Z-210209T1200Z/ Scott-Jefferson- Including the cities of Scottsburg and Madison 411 AM EST Tue Feb 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to 3 inches and ice accumulations of a light glaze. Total snow accumulations of 4 to 6 inches. * WHERE...Scott and Jefferson Counties. * WHEN...Until 7 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For Indiana Road Conditions please visit https://pws.trafficwise.org/pws && $$ INZ083-084-089>092-KYZ030>033-092100- /O.EXT.KLMK.WS.A.0001.210210T0600Z-210212T0000Z/ /O.CON.KLMK.WW.Y.0008.000000T0000Z-210209T1200Z/ Dubois-Crawford-Perry-Harrison-Floyd-Clark-Jefferson-Oldham- Trimble-Henry- Including the cities of Jasper, English, Tell City, Corydon, New Albany, Jeffersonville, Louisville, La Grange, Bedford, Milton, and New Castle 411 AM EST Tue Feb 9 2021 /311 AM CST Tue Feb 9 2021/ ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST /6 AM CST/ THIS MORNING... ...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY NIGHT... * WHAT...For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of around one inch and ice accumulations of less than one tenth of an inch. For the Winter Storm Watch, heavy mixed precipitation possible. Total icing accumulations of one quarter to one half inch will be possible. * WHERE...For the Winter Weather Advisory, portions of south central Indiana and north central Kentucky. For the Winter Storm Watch, portions of south central Indiana and central Kentucky. * WHEN...For the Winter Weather Advisory, until 7 AM EST /6 AM CST/ this morning. For the Winter Storm Watch, from late tonight through Thursday night. * IMPACTS...For the Winter Weather Advisory, slick roads and sidewalks are possible. For the Winter Storm Watch, power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. In Indiana, for Indiana Road Conditions please visit https://pws.trafficwise.org/pws In Kentucky, for Kentucky Road Conditions please visit https://goky.ky.gov && $$ INZ076-077-091200- /O.CON.KLMK.WW.Y.0008.000000T0000Z-210209T1200Z/ Orange-Washington- Including the cities of Paoli and Salem 411 AM EST Tue Feb 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS MORNING... * WHAT...Mixed precipitation expected. Total snow accumulations of two to three inches and ice accumulations less than one tenth of an inch. * WHERE...South central Indiana and portions of north central Kentucky. * WHEN...Through 7 AM EST /6 AM CST/ Tuesday. * IMPACTS...Plan on slick roads and sidewalks. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For Indiana Road Conditions please visit https://pws.trafficwise.org/pws && $$ KYZ072-073-092100- /O.EXB.KLMK.WS.A.0001.210210T0600Z-210212T0000Z/ Simpson-Allen- Including the cities of Franklin, Providence, and Scottsville 311 AM CST Tue Feb 9 2021 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON... * WHAT...Heavy mixes precipitation possible. Total ice accumulations of one quarter to one half inch will be possible. * WHERE...Simpson and Allen Counties. * WHEN...From late tonight through Thursday night. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. For Kentucky road conditions, please visit https://goky.ky.gov && $$ KYZ023>029-034>043-045>049-053>057-061>067-070-071-074-076>078- 092100- /O.EXT.KLMK.WS.A.0001.210210T0600Z-210212T0000Z/ Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt-Shelby- Franklin-Scott-Harrison-Spencer-Anderson-Woodford-Fayette-Bourbon- Nicholas-Nelson-Washington-Mercer-Jessamine-Clark-Larue-Marion- Boyle-Garrard-Madison-Butler-Edmonson-Hart-Green-Taylor-Casey- Lincoln-Logan-Warren-Barren-Metcalfe-Adair-Russell- Including the cities of Lewisport, Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield, Elizabethtown, Shepherdsville, Shelbyville, Frankfort, Georgetown, Cynthiana, Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle, Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester, Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown, Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty, Stanford, Russellville, Bowling Green, Glasgow, Edmonton, Columbia, and Jamestown 411 AM EST Tue Feb 9 2021 /311 AM CST Tue Feb 9 2021/ ...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY EVENING... * WHAT...Heavy mixed precipitation possible. Total icing accumulations of one tenth to one half inch are likely and locally higher amounts will be possible. The heaviest icing is expected in a zone between the Western Kentucky and Bluegrass Parkways and the Cumberland Parkway. * WHERE...Portions of east central, north central, northwest and south central Kentucky. * WHEN...From late tonight through Thursday evening. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. For Kentucky road conditions, please visit https://goky.ky.gov && $$ JML
365 WWUS43 KLMK 091206 WSWLMK URGENT - WINTER WEATHER MESSAGE National Weather Service Louisville KY 706 AM EST Tue Feb 9 2021 ...Significant Sleet and Ice Accumulations Expected Late Tuesday through Thursday... .A significant winter weather event is expected to begin late tonight as a wintry mix of sleet and freezing rain develops across the region. Current forecasts suggest that impactful amounts of freezing rain and sleet will be possible across portions of southern Indiana and central Kentucky. For this reason, a Winter Storm Watch has been issued. INZ078-079-091315- /O.EXP.KLMK.WS.W.0001.000000T0000Z-210209T1200Z/ Scott-Jefferson- Including the cities of Scottsburg and Madison 706 AM EST Tue Feb 9 2021 ...WINTER STORM WARNING HAS EXPIRED... No additional significant snowfall is expected. $$ INZ083-084-089>092-KYZ030>033-092100- /O.EXP.KLMK.WW.Y.0008.000000T0000Z-210209T1200Z/ /O.CON.KLMK.WS.A.0001.210210T0600Z-210212T0000Z/ Dubois-Crawford-Perry-Harrison-Floyd-Clark-Jefferson-Oldham- Trimble-Henry- Including the cities of Jasper, English, Tell City, Corydon, New Albany, Jeffersonville, Louisville, La Grange, Bedford, Milton, and New Castle 706 AM EST Tue Feb 9 2021 /606 AM CST Tue Feb 9 2021/ ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY EVENING... ...WINTER WEATHER ADVISORY FROM EARLIER THIS MORNING HAS EXPIRED... * WHAT...Heavy mixed precipitation possible. Total snow accumulations of up to one inch and ice accumulations of around one tenth of an inch possible. * WHERE...Portions of south central Indiana and central Kentucky. * WHEN...Late tonight through Thursday night. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates. && $$ INZ076-077-091315- /O.EXP.KLMK.WW.Y.0008.000000T0000Z-210209T1200Z/ Orange-Washington- Including the cities of Paoli and Salem 706 AM EST Tue Feb 9 2021 ...WINTER WEATHER ADVISORY HAS EXPIRED... No additional significant wintry weather is expected. $$ KYZ023>029-034>043-045>049-053>057-061>067-070>074-076>078-092100- /O.CON.KLMK.WS.A.0001.210210T0600Z-210212T0000Z/ Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt-Shelby- Franklin-Scott-Harrison-Spencer-Anderson-Woodford-Fayette-Bourbon- Nicholas-Nelson-Washington-Mercer-Jessamine-Clark-Larue-Marion- Boyle-Garrard-Madison-Butler-Edmonson-Hart-Green-Taylor-Casey- Lincoln-Logan-Warren-Simpson-Allen-Barren-Metcalfe-Adair-Russell- Including the cities of Lewisport, Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield, Elizabethtown, Shepherdsville, Shelbyville, Frankfort, Georgetown, Cynthiana, Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle, Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester, Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown, Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty, Stanford, Russellville, Bowling Green, Franklin, Providence, Scottsville, Glasgow, Edmonton, Columbia, and Jamestown 706 AM EST Tue Feb 9 2021 /606 AM CST Tue Feb 9 2021/ ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY EVENING... * WHAT...Heavy mixed precipitation possible. Total icing accumulations of one tenth to one half inch are likely and locally higher amounts will be possible. The heaviest icing is expected in a zone between the Western Kentucky and Bluegrass Parkways and the Cumberland Parkway. * WHERE...Portions of east central, north central, northwest and south central Kentucky. * WHEN...From late tonight through Thursday evening. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates. && $$ 13
The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 9, 2:32 PM EST | Winter Weather Advisory | LMK | Clark, Crawford, Dubois, Floyd, Harrison, Jefferson and 4 more | 43 hr |
Nearby
Winter Storm Warnings in Indiana, 2021Every winter storm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.