Alert archive / Alabama / Winter Storm Warnings in 2021
Winter Storm Warning 2, NWS Huntsville, AL
NWS Huntsville, AL issued this winter storm warning at Feb 17, 2021, 2:41 AM CST for Franklin County, Lincoln County, Moore County, Tennessee; 7 counties in Alabama. It took effect at Feb 17, 2021, 3:00 PM CST. It was in force for 15 hr. 45 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 17, 2021, 2:41 AM CST (08:41 UTC)
- In effect from
- Feb 17, 2021, 3:00 PM CST
- Expired
- Feb 18, 2021, 6:00 AM CST
- In force
- 15 hr
- Issued by
- NWS Huntsville, AL
Counties Colbert County, AL, Franklin County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Morgan County, AL, Franklin County, TN, Lincoln County, TN, Moore County, TN
The radar
The Northeast Alabama radar (KHTX), 85 km from the middle of the area, began a volume at 08:42 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 17, 7:44 PM CST | SNOW 2 | Anderson, AL | |
| Feb 17, 7:45 PM CST | SNOW 2 | Tuscumbia, AL | |
| Feb 17, 7:46 PM CST | SNOW 1 | Rogersville, AL | |
| Feb 17, 7:48 PM CST | SNOW 1 | Somerville, AL | |
| Feb 17, 7:50 PM CST | SNOW 1.5 | Elkmont, AL | |
| Feb 17, 7:51 PM CST | SNOW 1.4 | Priceville, AL | |
| Feb 17, 7:53 PM CST | SNOW 1.5 | 3 N Triana, AL | |
| Feb 17, 8:09 PM CST | SNOW 3 | Russellville, AL | |
| Feb 17, 8:10 PM CST | SNOW 1.5 | Hartselle, AL | |
| Feb 17, 8:10 PM CST | SNOW 2 | Florence, AL | |
| Feb 17, 8:16 PM CST | SNOW 2 | 2 N Harvest, AL | |
| Feb 17, 8:18 PM CST | SNOW 1 | Hazel Green, AL | |
| Feb 17, 8:19 PM CST | SNOW 2.5 | 2 N Madison, AL | |
| Feb 17, 8:22 PM CST | SNOW 5 | Russellville, AL | |
| Feb 17, 8:26 PM CST | SNOW 2.5 | 7 E Athens, AL | |
| Feb 17, 8:28 PM CST | SNOW 3.5 | 5 Nw Huntsville, AL | |
| Feb 17, 8:30 PM CST | SNOW 1 | 6 Sse Moores Mill, AL | |
| Feb 17, 8:35 PM CST | SNOW 2 | Huntsville, AL | |
| Feb 17, 8:37 PM CST | SNOW 3 | Meridianville, AL | |
| Feb 17, 8:51 PM CST | SNOW 1.5 | Harvest, AL | |
| Feb 17, 8:51 PM CST | SNOW 2.5 | Elkmont, AL | |
| Feb 17, 8:52 PM CST | SNOW 2 | Winchester, TN | |
| Feb 17, 9:01 PM CST | SNOW 2.5 | Decatur, AL | |
| Feb 17, 9:05 PM CST | SNOW 3 | Hazel Green, AL | |
| Feb 17, 9:08 PM CST | SNOW 3 | Decherd, TN | |
| Feb 17, 9:11 PM CST | SNOW 2.3 | Harvest, AL | |
| Feb 17, 9:14 PM CST | SNOW 4 | 3 Wsw Hazel Green, AL | |
| Feb 17, 9:18 PM CST | SNOW 3 | 4 Ssw Madison, AL | MEASURED AT HSV. |
| Feb 17, 9:19 PM CST | SNOW 4 | 1 Ssw Underwood-Petersv, AL | |
| Feb 17, 9:20 PM CST | SNOW 5 | 6 E Athens, AL | |
| Feb 17, 9:27 PM CST | SNOW 5 | Moulton, AL | |
| Feb 17, 9:42 PM CST | SNOW 3 | Lynchburg, TN | |
| Feb 17, 9:43 PM CST | SNOW 3.5 | 5 Se Ardmore, AL | |
| Feb 17, 9:52 PM CST | SNOW 4 | Sheffield, AL | |
| Feb 17, 10:10 PM CST | SNOW 5 | Fayetteville, TN | |
| Feb 17, 10:15 PM CST | SNOW 6 | 6 Nne Madison, AL | |
| Feb 17, 10:18 PM CST | SNOW 4 | Lexington, AL | |
| Feb 17, 10:19 PM CST | SNOW 5 | Rogersville, AL | |
| Feb 17, 10:44 PM CST | SNOW 5 | 1 Nnw Florence, AL | |
| Feb 17, 11:43 PM CST | SNOW 5 | Tuscumbia, AL | |
| Feb 17, 11:48 PM CST | SNOW 4.8 | 4 E Harvest, AL | |
| Feb 17, 11:52 PM CST | SNOW 4 | 2 Wsw Lynchburg, TN | |
| Feb 17, 11:53 PM CST | SNOW 4.5 | Ardmore, AL | |
| Feb 17, 11:54 PM CST | SNOW 6 | 1 Sse Leighton, AL | |
| Feb 18, 1:22 AM CST | SNOW 6 | 7 N Killen, AL |
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 00:00Z, 8.7 hours before the alert went out and 150 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
- 651 m above ground
- 0-6 km bulk shear
- 89 kt
- 0-1 km storm-relative helicity
- -97 m²/s²
- 0-3 km storm-relative helicity
- -13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
105 WWUS44 KHUN 170841 WSWHUN URGENT - WINTER WEATHER MESSAGE National Weather Service Huntsville AL 241 AM CST Wed Feb 17 2021 ALZ001>005-171900- /O.UPG.KHUN.WS.A.0002.210217T2200Z-210218T1200Z/ /O.NEW.KHUN.WS.W.0002.210217T2200Z-210218T1200Z/ Lauderdale-Colbert-Franklin AL-Lawrence-Limestone- Including the cities of Florence, Muscle Shoals, Sheffield, Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, and Athens 241 AM CST Wed Feb 17 2021 ...WINTER STORM WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 AM CST THURSDAY... * WHAT...Moderate to heavy mixed precipitation expected. Total snow accumulations of 2 to 3 inches and ice accumulations of around one tenth of an inch. * WHERE...Lauderdale, Colbert, Franklin AL, Lawrence and Limestone counties. * WHEN...From 4 PM this afternoon to 6 AM CST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ TNZ076-096-097-171900- /O.UPG.KHUN.WS.A.0002.210218T0000Z-210218T1200Z/ /O.NEW.KHUN.WS.W.0002.210218T0000Z-210218T1200Z/ Moore-Lincoln-Franklin TN- Including the cities of Lynchburg, Fayetteville, Winchester, Sewanee, Decherd, Estill Springs, and Cowan 241 AM CST Wed Feb 17 2021 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST THURSDAY... * WHAT...Moderate to heavy mixed precipitation expected. Total snow accumulations of up to 2 to 3 inches and ice accumulations of a light glaze. * WHERE...Moore, Lincoln and Franklin TN counties. * WHEN...From 6 PM this evening to 6 AM CST Thursday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Dangerous travel conditions will redevelop quickly due to very cold ground and surface temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ For more information from the National Weather Service visit http://weather.gov/hun
4 follow-up statements
564 WWUS44 KHUN 171725 WSWHUN URGENT - WINTER WEATHER MESSAGE National Weather Service Huntsville AL 1125 AM CST Wed Feb 17 2021 ALZ001>005-180200- /O.EXT.KHUN.WS.W.0002.210217T2100Z-210218T1200Z/ Lauderdale-Colbert-Franklin AL-Lawrence-Limestone- Including the cities of Florence, Muscle Shoals, Sheffield, Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, and Athens 1125 AM CST Wed Feb 17 2021 ...WINTER STORM WARNING NOW IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM CST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 3 inches and ice accumulations of around one tenth of an inch. * WHERE...Limestone, Franklin AL, Colbert, Lauderdale and Lawrence counties. * WHEN...From 3 PM this afternoon to 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ TNZ076-096-097-180200- /O.CON.KHUN.WS.W.0002.210218T0000Z-210218T1200Z/ Moore-Lincoln-Franklin TN- Including the cities of Lynchburg, Fayetteville, Winchester, Sewanee, Decherd, Estill Springs, and Cowan 1125 AM CST Wed Feb 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 3 inches and ice accumulations of a light glaze. * WHERE...Moore, Franklin TN and Lincoln counties. * WHEN...From 6 PM this evening to 6 AM CST Thursday. * IMPACTS...Dangerous travel conditions will redevelop quickly due to very cold ground and surface temperatures. Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ ALZ006-007-009-180200- /O.NEW.KHUN.WW.Y.0005.210218T0000Z-210218T1200Z/ Madison-Morgan-Jackson- Including the cities of Huntsville, Decatur, and Scottsboro 1125 AM CST Wed Feb 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST THURSDAY... * WHAT...Wet snow expected. Total snow accumulations of up to two inches. * WHERE...Madison, Morgan and Jackson counties. * WHEN...From 6 PM this evening to 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ For more information from the National Weather Service visit http://weather.gov/hun
285 WWUS44 KHUN 172123 WSWHUN URGENT - WINTER WEATHER MESSAGE National Weather Service Huntsville AL 323 PM CST Wed Feb 17 2021 ALZ001>005-181200- /O.CON.KHUN.WS.W.0002.000000T0000Z-210218T1200Z/ Lauderdale-Colbert-Franklin AL-Lawrence-Limestone- Including the cities of Florence, Muscle Shoals, Sheffield, Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, and Athens 323 PM CST Wed Feb 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches and ice accumulations of around one tenth of an inch. * WHERE...Limestone, Franklin AL, Colbert, Lauderdale and Lawrence counties. * WHEN...From 3 PM this afternoon to 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ TNZ076-096-097-181200- /O.CON.KHUN.WS.W.0002.210218T0000Z-210218T1200Z/ Moore-Lincoln-Franklin TN- Including the cities of Lynchburg, Fayetteville, Winchester, Sewanee, Decherd, Estill Springs, and Cowan 323 PM CST Wed Feb 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches and ice accumulations of a light glaze. * WHERE...Moore, Franklin TN and Lincoln counties. * WHEN...From 6 PM this evening to 6 AM CST Thursday. * IMPACTS...Dangerous travel conditions will redevelop quickly due to very cold ground and surface temperatures. Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ ALZ016-181200- /O.EXA.KHUN.WW.Y.0005.210218T0000Z-210218T1200Z/ Cullman- Including the city of Cullman 323 PM CST Wed Feb 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of up to 2 inches and ice accumulations of a light glaze. * WHERE...Cullman county. * WHEN...From 6 PM this evening to 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ ALZ006-007-009-181200- /O.CON.KHUN.WW.Y.0005.210218T0000Z-210218T1200Z/ Madison-Morgan-Jackson- Including the cities of Huntsville, Decatur, and Scottsboro 323 PM CST Wed Feb 17 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Wet snow expected. Total snow accumulations of up to two inches. * WHERE...Madison, Morgan and Jackson counties. * WHEN...From 6 PM this evening to 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ For more information from the National Weather Service visit http://weather.gov/hun
707 WWUS44 KHUN 180104 WSWHUN URGENT - WINTER WEATHER MESSAGE National Weather Service Huntsville AL 704 PM CST Wed Feb 17 2021 ALZ006-007-181200- /O.UPG.KHUN.WW.Y.0005.000000T0000Z-210218T1200Z/ /O.EXA.KHUN.WS.W.0002.000000T0000Z-210218T1200Z/ Madison-Morgan- Including the cities of Huntsville and Decatur 704 PM CST Wed Feb 17 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to 3 inches and ice accumulations of a light glaze. * WHERE...Madison and Morgan counties. * WHEN...Through 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ ALZ001>005-181200- /O.CON.KHUN.WS.W.0002.000000T0000Z-210218T1200Z/ Lauderdale-Colbert-Franklin AL-Lawrence-Limestone- Including the cities of Florence, Muscle Shoals, Sheffield, Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, and Athens 704 PM CST Wed Feb 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches and ice accumulations of around one tenth of an inch. * WHERE...Limestone, Franklin AL, Colbert, Lauderdale and Lawrence counties. * WHEN...Through 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ TNZ076-096-097-181200- /O.CON.KHUN.WS.W.0002.000000T0000Z-210218T1200Z/ Moore-Lincoln-Franklin TN- Including the cities of Lynchburg, Fayetteville, Winchester, Sewanee, Decherd, Estill Springs, and Cowan 704 PM CST Wed Feb 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 2 to 5 inches and ice accumulations of a light glaze. * WHERE...Moore, Franklin TN and Lincoln counties. * WHEN...Through 6 AM CST Thursday. * IMPACTS...Dangerous travel conditions will redevelop quickly due to very cold ground and surface temperatures. Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ ALZ009-016-181200- /O.CON.KHUN.WW.Y.0005.000000T0000Z-210218T1200Z/ Jackson-Cullman- Including the cities of Scottsboro and Cullman 704 PM CST Wed Feb 17 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...Wet snow expected. Total snow accumulations of up to an inch. * WHERE...Jackson and Cullman counties. * WHEN...Through 6 AM CST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ For more information from the National Weather Service visit http://weather.gov/hun
667 WWUS44 KHUN 180917 WSWHUN URGENT - WINTER WEATHER MESSAGE National Weather Service Huntsville AL 317 AM CST Thu Feb 18 2021 ALZ009-016-181030- /O.CAN.KHUN.WW.Y.0005.000000T0000Z-210218T1200Z/ Jackson-Cullman- Including the cities of Scottsboro and Cullman 317 AM CST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Wintry precipitation has transitioned mainly to rain. However, some slick spots on roads may be possible through the morning. $$ ALZ001>007-181200- /O.CON.KHUN.WS.W.0002.000000T0000Z-210218T1200Z/ Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan- Including the cities of Florence, Muscle Shoals, Sheffield, Tuscumbia, Russellville, Red Bay, Moulton, Town Creek, Athens, Huntsville, and Decatur 317 AM CST Thu Feb 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. * WHERE...Limestone, Franklin AL, Colbert, Lauderdale, Lawrence, Morgan and Madison counties. * WHEN...Until 6 AM CST early this morning. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ TNZ076-096-097-181200- /O.CON.KHUN.WS.W.0002.000000T0000Z-210218T1200Z/ Moore-Lincoln-Franklin TN- Including the cities of Lynchburg, Fayetteville, Winchester, Sewanee, Decherd, Estill Springs, and Cowan 317 AM CST Thu Feb 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. * WHERE...Moore, Franklin TN and Lincoln counties. * WHEN...Until 6 AM CST early this morning. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ For more information from the National Weather Service visit http://weather.gov/hun
The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 16, 9:03 PM CST | Winter Storm Watch | HUN | Franklin, Lincoln, Moore | 6 hr |
| Feb 17, 11:25 AM CST | Winter Weather Advisory | HUN | Cullman, Jackson, Madison, Morgan | 16 hr |
Nearby
Winter Storm Warnings in Alabama, 2021Winter Storm Warnings in Tennessee, 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.