Alert archive / Indiana / Winter Storm Warnings in 2021

Winter Storm Warning 1, NWS Paducah, KY

February 10, 20216 counties in Indiana

NWS Paducah, KY issued this winter storm warning at Feb 10, 2021, 1:31 PM CST for 6 counties in Indiana. It was in force for 14 hr. 5 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 10, 2021, 1:31 PM CST (19:31 UTC)
Expired
Feb 11, 2021, 3:56 AM CST
In force
14 hr
Issued by
NWS Paducah, KY

Counties Gibson County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN

The radar

The Evansville,IN radar (KVWX), 29 km from the middle of the area, began a volume at 19:32 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

TimeReportWhereRemark
Feb 10, 1:31 PM CSTSLEET 0.5Fort Branch, INSTORM TOTAL ACCUMULATION OF SNOW AND SLEET.
Feb 10, 3:00 PM CSTFREEZING RAIN 0.152.6 N Newburgh, INRELAYED VIA TWITTER.
Feb 10, 7:00 PM CSTFREEZING RAIN 0.272 Nw Melody Hill, INICE ACCUMULATION MEASURED BY EVANSVILLE AIRPORT ASOS SINCE MIDNIGHT.
Feb 10, 7:30 PM CSTFREEZING RAIN 0.252.6 N Newburgh, INTOTAL ICE ACCRETION SO FAR, RELAYED VIA TWITTER.
Feb 10, 7:40 PM CSTICE STORMRockport, INMULTIPLE REPORTS OF TREES DOWN THROUGHOUT SPENCER COUNTY DUE TO ICING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.5 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, Nashville Metro, TN at 12:00Z on 2021-02-10Temperature 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, Nashville Metro, TN at 12:00Z on 2021-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 456 square meters per square second.1939587897Sfc1 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
631 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
456 m²/s²
0-3 km storm-relative helicity
455 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

227 
WWUS43 KPAH 101931
WSWPAH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Paducah KY
131 PM CST Wed Feb 10 2021

...Prolonged icing event expected Today through Thursday...

.Significant ice accumulations are expected to produce
treacherous, potentially life-threatening travel conditions
through Thursday morning. While ice accumulations are expected to
be higher over parts of West Kentucky, the southern tip of
Illinois, and the Delta region of Southeast Missouri, dangerous
road conditions are anticipated across the entire Quad State.
Layering of sleet on top of freezing rain will heighten hazardous
travel conditions.

INZ081-082-085>088-110345-
/O.UPG.KPAH.WW.Y.0004.000000T0000Z-210212T0000Z/
/O.NEW.KPAH.WS.W.0001.210210T1931Z-210212T0000Z/
Gibson-Pike-Posey-Vanderburgh-Warrick-Spencer-
Including the cities of Fort Branch, Petersburg, Poseyville, 
Evansville, Boonville, and Rockport
131 PM CST Wed Feb 10 2021

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM CST THURSDAY...

* WHAT...Heavy mixed precipitation. Sleet accumulations around one
  half inch and additional ice accumulations of up to one tenth 
  inch.

* WHERE...Portions of southwest Indiana.

* WHEN...Until 6 PM CST Thursday, with the majority of the
  freezing rain accumulation Wednesday afternoon and the majority
  of the sleet accumulation Wednesday evening.

* IMPACTS...Expect dangerous and potentially life-threatening road
  conditions. Cold temperatures will keep surfaces frozen long
  after precipitation ends. The hazardous conditions could impact
  the morning and evening commutes. Some tree damage and power
  outages are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged as roads are likely to be
treacherous. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. Prepare for 
possible power outages. Monitor the latest forecasts for updates 
on this situation.

&&

$$

ILZ090>094-KYZ001>022-MOZ108>112-114-110345-
/O.CON.KPAH.IS.W.0001.000000T0000Z-210212T0000Z/
Pope-Hardin-Alexander-Pulaski-Massac-Fulton-Hickman-Carlisle-
Ballard-McCracken-Graves-Livingston-Marshall-Calloway-Crittenden-
Lyon-Trigg-Caldwell-Union KY-Webster-Hopkins-Christian-Henderson-
Daviess-McLean-Muhlenberg-Todd-Ripley-Butler-Stoddard-Scott-
Mississippi-New Madrid-
Including the cities of Golconda, Elizabethtown, Cairo, 
Mound City, Metropolis, Hickman, Clinton, Bardwell, Wickliffe, 
Paducah, Mayfield, Smithland, Benton, Murray, Marion, Eddyville, 
Cadiz, Princeton, Morganfield, Dixon, Madisonville, Hopkinsville,
Henderson, Owensboro, Calhoun, Greenville, Elkton, Doniphan, 
Poplar Bluff, Bloomfield, Sikeston, Charleston, and New Madrid
131 PM CST Wed Feb 10 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THURSDAY...

* WHAT...Significant icing expected. Total ice accumulations of 
  two tenths to almost a half inch is possible, with the highest 
  amounts along the southern portions of the Western Kentucky 
  Pennyrile and Jackson Purchase areas. Some sleet is possible 
  as well.

* WHERE...Along and south of a line extending from Doniphan,
  Missouri, northeastward to Henderson, Kentucky, then eastward to
  Owensboro, Kentucky.

* WHEN...Ongoing until 6 PM CST Thursday with most of the 
  precipitation occurring Wednesday afternoon through Thursday 
  morning.

* IMPACTS...Expect dangerous and potentially life-threatening 
  road conditions. Cold temperatures will keep surfaces frozen 
  long after precipitation ends. The hazardous conditions could 
  impact the morning and evening commutes. Some tree damage and 
  power outages are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged as roads are likely to be
treacherous. If you must travel, keep an extra flashlight, food 
and water in your vehicle in case of an emergency. Prepare for 
possible power outages. Monitor the latest forecasts for updates 
on this situation.

&&

$$

ILZ075>078-080>089-MOZ076-086-087-100-107-110345-
/O.CON.KPAH.WW.Y.0004.000000T0000Z-210212T0000Z/
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Perry MO-
Bollinger-Cape Girardeau-Wayne MO-Carter-
Including the cities of Mount Vernon, Fairfield, Albion, 
Mount Carmel, Pinckneyville, West Frankfort, McLeansboro, Carmi, 
Carbondale, Murphysboro, Herrin, Harrisburg, Shawneetown, 
Jonesboro, Vienna, Perryville, Marble Hill, Cape Girardeau, 
Jackson, Piedmont, and Van Buren
131 PM CST Wed Feb 10 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
THURSDAY...

* WHAT...Mixed precipitation expected. Ice accumulations of one 
  to two tenths of an inch, with some light snow and sleet 
  possible as well.

* WHERE...Along and north of a line extending from Elsinore,
  Missouri, northeastward to West Salem, Illinois.

* WHEN...Ongoing until 6 PM CST Thursday with most of the 
  precipitation occurring Wednesday through Wednesday night.

* IMPACTS...Expect dangerous road conditions. Cold temperatures 
  will keep surfaces frozen long after precipitation ends. The 
  hazardous conditions could impact the morning and evening 
  commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. Even light amounts of ice 
accumulations are capable of making road conditions treacherous.
Monitor the latest forecasts for updates on this situation. 

&&

$$
2 follow-up statements
619 
WWUS43 KPAH 110320
WSWPAH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Paducah KY
920 PM CST Wed Feb 10 2021


ILZ090>094-KYZ001>022-MOZ108>112-114-111030-
/O.CON.KPAH.IS.W.0001.000000T0000Z-210212T0000Z/
Pope-Hardin-Alexander-Pulaski-Massac-Fulton-Hickman-Carlisle-
Ballard-McCracken-Graves-Livingston-Marshall-Calloway-Crittenden-
Lyon-Trigg-Caldwell-Union KY-Webster-Hopkins-Christian-Henderson-
Daviess-McLean-Muhlenberg-Todd-Ripley-Butler-Stoddard-Scott-
Mississippi-New Madrid-
Including the cities of Golconda, Elizabethtown, Cairo, 
Mound City, Metropolis, Hickman, Clinton, Bardwell, Wickliffe, 
Paducah, Mayfield, Smithland, Benton, Murray, Marion, Eddyville, 
Cadiz, Princeton, Morganfield, Dixon, Madisonville, Hopkinsville,
Henderson, Owensboro, Calhoun, Greenville, Elkton, Doniphan, 
Poplar Bluff, Bloomfield, Sikeston, Charleston, and New Madrid
920 PM CST Wed Feb 10 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THURSDAY...

* WHAT...Significant icing expected. Additional ice accumulations
  of around a tenth of an inch are expected, primarily over
  portions of western Kentucky. This will bring total ice
  accumulations ranging between two and five tenths of an inch.
  Locally higher storm totals are possible, especially over the
  northern Pennyrile region of west Kentucky. Some minor sleet
  accumulations are possible as well.

* WHERE...Along and southeast of a line extending from Doniphan, 
  Missouri, northeastward to Henderson, Kentucky, then eastward 
  to Owensboro, Kentucky.

* WHEN...Most of the precipitation is expected to taper off from
  northwest to southeast tonight into early Thursday morning. If
  this trend continues, the warning may need to be cancelled early.

* IMPACTS...Expect dangerous and potentially life-threatening
  travel conditions. Cold temperatures will keep untreated surfaces
  frozen long after precipitation ends. The hazardous conditions 
  could impact the Thursday morning commute. Some tree damage and 
  power outages are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged as roads are likely to be
treacherous. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. Prepare for
possible power outages. Monitor the latest forecasts for updates
on this situation.

&&

$$

INZ081-082-085>088-111030-
/O.CON.KPAH.WS.W.0001.000000T0000Z-210212T0000Z/
Gibson-Pike-Posey-Vanderburgh-Warrick-Spencer-
Including the cities of Fort Branch, Petersburg, Poseyville, 
Evansville, Boonville, and Rockport
920 PM CST Wed Feb 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST
THURSDAY...

* WHAT...Only minor additional sleet and ice accumulations are
  expected. 

* WHERE...Portions of southwest Indiana.

* WHEN...Most of the precipitation is expected to taper off late
  this evening into the overnight hours. If this trend continues,
  the warning may need to be expired early.

* IMPACTS...Expect dangerous and potentially life-threatening
  travel conditions. Cold temperatures will keep untreated 
  surfaces frozen long after precipitation ends. The hazardous 
  conditions could impact the Thursday morning commute. Some tree 
  damage and power outages are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged as roads are likely to be
treacherous. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. Prepare for
possible power outages. Monitor the latest forecasts for updates
on this situation.

&&

$$

ILZ075>078-080>089-MOZ076-086-087-100-107-111030-
/O.CON.KPAH.WW.Y.0004.000000T0000Z-210212T0000Z/
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Perry MO-
Bollinger-Cape Girardeau-Wayne MO-Carter-
Including the cities of Mount Vernon, Fairfield, Albion, 
Mount Carmel, Pinckneyville, West Frankfort, McLeansboro, Carmi, 
Carbondale, Murphysboro, Herrin, Harrisburg, Shawneetown, 
Jonesboro, Vienna, Perryville, Marble Hill, Cape Girardeau, 
Jackson, Piedmont, and Van Buren
920 PM CST Wed Feb 10 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST
THURSDAY...

* WHAT...Only minor additional sleet and ice accumulations are 
  expected.

* WHERE...Along and northwest of a line extending from Elsinore, 
  Missouri, northeastward to West Salem, Illinois.

* WHEN...Most of the precipitation will taper off from northwest 
  to southeast late this evening into the overnight hours. If this
  trend continues, the advisory will likely be cancelled by early
  Thursday morning.

* IMPACTS...Expect dangerous travel conditions. Cold temperatures
  will keep untreated surfaces frozen long after precipitation 
  ends. The hazardous conditions could impact the morning and 
  evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. Even light amounts of ice
accumulations are capable of making road conditions treacherous.
Monitor the latest forecasts for updates on this situation.

&&

$$

SP
873 
WWUS43 KPAH 110956
WSWPAH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Paducah KY
356 AM CST Thu Feb 11 2021

...With ongoing icy road conditions, and the continuation of 
light wintry precipitation chances, warnings and advisories remain
in effect...

INZ081-082-085>088-112200-
/O.CAN.KPAH.WS.W.0001.000000T0000Z-210212T0000Z/
/O.EXA.KPAH.WW.Y.0004.000000T0000Z-210212T0000Z/
Gibson-Pike-Posey-Vanderburgh-Warrick-Spencer-
Including the cities of Fort Branch, Petersburg, Poseyville, 
Evansville, Boonville, and Rockport
356 AM CST Thu Feb 11 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Mixed precipitation. Minor additional snow, sleet, and
  ice accumulations. Temperatures will remain below freezing.

* WHERE...Portions of southwest Indiana.

* WHEN...The morning hours will be the time period for best
  additional minor wintry accumulations. The advisory is in 
  effect until 6 PM CST this evening. 

* IMPACTS...Hazardous travel conditions will continue. Cold
  temperatures will keep untreated surfaces frozen, even as
  precipitation lessens. Commutes, especially this morning, will 
  be affected.

* ADDITIONAL DETAILS...While only minor additional precipitation
  amounts are expected, due to the existing icy roads and
  continuation of sub freezing temperatures, hazardous travel 
  conditions will be prolonged.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

&&

$$

ILZ090>094-KYZ001>022-MOZ108>112-114-112200-
/O.CON.KPAH.IS.W.0001.000000T0000Z-210212T0000Z/
Pope-Hardin-Alexander-Pulaski-Massac-Fulton-Hickman-Carlisle-
Ballard-McCracken-Graves-Livingston-Marshall-Calloway-Crittenden-
Lyon-Trigg-Caldwell-Union KY-Webster-Hopkins-Christian-Henderson-
Daviess-McLean-Muhlenberg-Todd-Ripley-Butler-Stoddard-Scott-
Mississippi-New Madrid-
Including the cities of Golconda, Elizabethtown, Cairo, 
Mound City, Metropolis, Hickman, Clinton, Bardwell, Wickliffe, 
Paducah, Mayfield, Smithland, Benton, Murray, Marion, Eddyville, 
Cadiz, Princeton, Morganfield, Dixon, Madisonville, Hopkinsville,
Henderson, Owensboro, Calhoun, Greenville, Elkton, Doniphan, 
Poplar Bluff, Bloomfield, Sikeston, Charleston, and New Madrid
356 AM CST Thu Feb 11 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Significant icing on roads continues. Lingering light 
  wintry precipitation may result in additional ice accumulations 
  of around a tenth of an inch, mainly for southern portions of 
  western Kentucky. Temperatures will remain below freezing.

* WHERE...Along and southeast of a line extending from Doniphan, 
  Missouri, northeastward to Henderson, Kentucky, then eastward 
  to Owensboro, Kentucky.

* WHEN...The morning hours will be the time period for best
  additional icing of roads and walkways, due to lingering wintry
  precipitation. The warning is in effect until 6 PM CST this 
  evening.
 
* IMPACTS...Dangerous travel conditions will continue. Cold 
  temperatures will keep untreated surfaces frozen, and prolonged 
  light wintry precipitation will hinder any daytime improvements 
  as temperatures remain below freezing. Commutes, especially this
  morning, will be affected.

* ADDITIONAL DETAILS...Due to the icy roads and continuation of
  sub freezing temperatures, and forecast of lingering, light 
  wintry precipitation chances, existing dangerous travel 
  conditions will be prolonged.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged as roads are likely to be
treacherous. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. Prepare for
possible power outages. Monitor the latest forecasts for updates
on this situation.

&&

$$

ILZ075>078-080>089-MOZ076-086-087-100-107-112200-
/O.CON.KPAH.WW.Y.0004.000000T0000Z-210212T0000Z/
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Perry MO-
Bollinger-Cape Girardeau-Wayne MO-Carter-
Including the cities of Mount Vernon, Fairfield, Albion, 
Mount Carmel, Pinckneyville, West Frankfort, McLeansboro, Carmi, 
Carbondale, Murphysboro, Herrin, Harrisburg, Shawneetown, 
Jonesboro, Vienna, Perryville, Marble Hill, Cape Girardeau, 
Jackson, Piedmont, and Van Buren
356 AM CST Thu Feb 11 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Mixed precipitation. Minor additional snow, sleet, and
  ice accumulations. Temperatures will remain below freezing.

* WHERE...Along and northwest of a line extending from Elsinore, 
  Missouri, northeastward to West Salem, Illinois.

* WHEN...The morning hours will be the time period for additional
  minor wintry precipitation and poor travel conditions. The 
  advisory is in effect until 6 PM CST this evening. 

* IMPACTS...Hazardous travel conditions will continue. Cold
  temperatures will keep untreated surfaces frozen, even as
  precipitation lessens. Commutes, especially this morning, will 
  be affected.

* ADDITIONAL DETAILS...While only minor additional precipitation
  amounts are expected, due to the existing icy roads and
  continuation of sub freezing temperatures, hazardous travel 
  conditions will be prolonged.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel is strongly discouraged. Even light amounts of ice
accumulations are capable of making road conditions treacherous.
Monitor the latest forecasts for updates on this situation.

&&

$$

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.