Alert archive / Tennessee / Flash Flood Watches in 2021
Flash Flood Watch 2, NWS Nashville, TN
NWS Nashville, TN issued this flash flood watch at Mar 26, 2021, 5:58 PM CDT for 38 counties in Tennessee. It took effect at Mar 27, 2021, 7:00 AM CDT. It was in force for 29 hr.
The area
The counties it named.
The facts
- Issued
- Mar 26, 2021, 5:58 PM CDT (22:58 UTC)
- In effect from
- Mar 27, 2021, 7:00 AM CDT
- Expired
- Mar 28, 2021, 11:48 AM CDT
- In force
- 29 hr
- Issued by
- NWS Nashville, TN
- Flood severity
- None
All 38 counties
Bedford County, TN, Cannon County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Fentress County, TN, Giles County, TN, Grundy County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 30 km from the middle of the area, began a volume at 23:01 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
Nashville Metro, TN (KBNA), launched 12:00Z, 11.0 hours before the alert went out and 20 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
- 950 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
697 WGUS64 KOHX 262258 FFAOHX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Nashville TN 558 PM CDT Fri Mar 26 2021 ...Flash Flood Watch In Effect 7 AM CDT Saturday to 7 PM CDT Sunday... .Several rounds of showers and thunderstorms are expected across Middle Tennessee from mid morning hours on Saturday through at least Sunday morning. This will bring an additional 1 to 3 inches ...with locally higher amounts ranging from 4 to 5 inches...of rainfall to already saturated ground conditions. Runoff impacts could last through afternoon hours on Sunday. TNZ005>011-023>034-056>066-075-077>080-093>095-271000- /O.NEW.KOHX.FF.A.0002.210327T1200Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith- Jackson-Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson- Maury-Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford- Coffee-Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- Including the cities of Dover, Clarksville, Springfield, Hendersonville, Gallatin, Goodlettsville, Lafayette, Celina, Byrdstown, Erin, Tennessee Ridge, Waverly, New Johnsonville, McEwen, Dickson, Ashland City, Kingston Springs, Nashville, Lebanon, Mount Juliet, Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, Cookeville, Livingston, Jamestown, Allardt, Linden, Lobelville, Centerville, Hohenwald, Franklin, Brentwood, Columbia, Lewisburg, Murfreesboro, Smyrna, La Vergne, Woodbury, Smithville, Sparta, Crossville, Shelbyville, Tullahoma, Manchester, McMinnville, Altamont, Coalmont, Spencer, Clifton, Waynesboro, Lawrenceburg, and Pulaski 558 PM CDT Fri Mar 26 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 7 AM CDT SATURDAY MORNING UNTIL 7 PM CDT SUNDAY... The National Weather Service in Nashville has issued a * Flash Flood Watch for a portion of Middle Tennessee, including the following areas, Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland, Davidson, De Kalb, Dickson, Fentress, Giles, Grundy, Hickman, Houston, Humphreys, Jackson, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Van Buren, Warren, Wayne, White, Williamson, and Wilson. * From Saturday 7 AM CDT until Sunday 7 PM CDT. * Multiple rounds of heavy rainfall from 7 AM CDT Saturday through at least the morning hours on Sunday will cause excessive rainfall amounts of 1 to 3 inches, with locally higher amounts of 4 to 5 inches, of additional rainfall to already saturated ground conditions. Runoff impacts could last through afternoon hours on Sunday. * Heavy rainfall along with potentially high rainfall rates will cause excess runoff and localized flash flooding in the watch area, including quick rises on area rivers and creeks. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a VERY DANGEROUS SITUATION. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JB Wright
5 follow-up statements
465 WGUS64 KOHX 270827 FFAOHX Flood Watch National Weather Service Nashville TN 327 AM CDT Sat Mar 27 2021 .Several rounds of showers and thunderstorms are expected across Middle Tennessee from the mid morning hours today through Sunday morning. This will bring an additional 1 to 3 inches of rain...with locally higher amounts of 4 to 5 inches. Ground conditions are saturated to begin with and these additional rounds of heavy rainfall will only further elevate the flooding potential. Runoff impacts could last through the afternoon hours on Sunday. TNZ005>011-023>034-056>066-075-077>080-093>095-272115- /O.CON.KOHX.FF.A.0002.210327T1200Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson- Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury- Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee- Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Crossville, Carthage, Smyrna, Lawrenceburg, McEwen, Clarksville, Pulaski, La Vergne, Coalmont, Altamont, Jamestown, Springfield, Linden, Waverly, Lewisburg, Columbia, Brentwood, Tullahoma, Woodbury, McMinnville, Nashville, Spencer, Kingston Springs, Ashland City, Dickson, Waynesboro, South Carthage, Sparta, Smithville, Murfreesboro, Cookeville, New Johnsonville, Livingston, Lafayette, Franklin, Gainesboro, Hartsville, Allardt, Tennessee Ridge, Centerville, Dover, Byrdstown, Lobelville, Mount Juliet, Manchester, Lebanon, Clifton, Celina, Hendersonville, Hohenwald, Gordonsville, Shelbyville, Erin, and Gallatin 327 AM CDT Sat Mar 27 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH SUNDAY EVENING... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland, Davidson, De Kalb, Dickson, Fentress, Giles, Grundy, Hickman, Houston, Humphreys, Jackson, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Van Buren, Warren, Wayne, White, Williamson and Wilson. * From 7 AM CDT this morning through Sunday evening * Multiple rounds of heavy rainfall are expected from 7 AM CDT Saturday through at least the morning hours on Sunday. This will cause excessive rainfall amounts of 1 to 3 inches, with locally higher amounts of 4 to 5 inches, to the already saturated ground. Runoff impacts could last through the afternoon hours on Sunday. * Heavy rainfall along with the high rainfall rates will cause excess runoff and localized flash flooding in the watch area, including fast water level rises on area rivers and creeks. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ 21
178 WGUS64 KOHX 272057 FFAOHX Flood Watch National Weather Service Nashville TN 357 PM CDT Sat Mar 27 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-280900- /O.CON.KOHX.FF.A.0002.000000T0000Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson- Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury- Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee- Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Crossville, Carthage, Smyrna, Lawrenceburg, McEwen, Clarksville, Pulaski, La Vergne, Coalmont, Altamont, Jamestown, Springfield, Linden, Waverly, Lewisburg, Columbia, Brentwood, Tullahoma, Woodbury, McMinnville, Nashville, Spencer, Kingston Springs, Ashland City, Dickson, Waynesboro, South Carthage, Sparta, Smithville, Murfreesboro, Cookeville, New Johnsonville, Livingston, Lafayette, Franklin, Gainesboro, Hartsville, Allardt, Tennessee Ridge, Centerville, Dover, Byrdstown, Lobelville, Mount Juliet, Manchester, Lebanon, Clifton, Celina, Hendersonville, Hohenwald, Gordonsville, Shelbyville, Erin, and Gallatin 357 PM CDT Sat Mar 27 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT SUNDAY... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland, Davidson, De Kalb, Dickson, Fentress, Giles, Grundy, Hickman, Houston, Humphreys, Jackson, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Van Buren, Warren, Wayne, White, Williamson and Wilson. * Through Sunday evening * Multiple rounds of heavy rainfall are still expected through at least Sunday morning hours. This will cause additional excessive rainfall amounts of 1 to 4 inches, with locally higher amounts possible, on already saturated ground. Runoff impacts could last through Sunday afternoon hours. * Heavy rainfall along with the high rainfall rates will cause excess runoff and localized flash flooding in the watch area, including fast water level rises on area rivers and creeks. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JB Wright
144 WGUS64 KOHX 280848 FFAOHX Flood Watch National Weather Service Nashville TN 348 AM CDT Sun Mar 28 2021 TNZ005>011-023>034-056>066-075-077>080-093>095-282100- /O.CON.KOHX.FF.A.0002.000000T0000Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith-Jackson- Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson-Maury- Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford-Coffee- Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- Including the cities of Goodlettsville, Crossville, Carthage, Smyrna, Lawrenceburg, McEwen, Clarksville, Pulaski, La Vergne, Coalmont, Altamont, Jamestown, Springfield, Linden, Waverly, Lewisburg, Columbia, Brentwood, Tullahoma, Woodbury, McMinnville, Nashville, Spencer, Kingston Springs, Ashland City, Dickson, Waynesboro, South Carthage, Sparta, Smithville, Murfreesboro, Cookeville, New Johnsonville, Livingston, Lafayette, Franklin, Gainesboro, Hartsville, Allardt, Tennessee Ridge, Centerville, Dover, Byrdstown, Lobelville, Mount Juliet, Manchester, Lebanon, Clifton, Celina, Hendersonville, Hohenwald, Gordonsville, Shelbyville, Erin, and Gallatin 348 AM CDT Sun Mar 28 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland, Davidson, De Kalb, Dickson, Fentress, Giles, Grundy, Hickman, Houston, Humphreys, Jackson, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Van Buren, Warren, Wayne, White, Williamson and Wilson. * Through this evening * Rainfall continues this morning with reported overnight rainfall totals as high as 7 to 10 inches across central portions of the mid state. Additional rainfall totals of up to 1 inch this morning will act to only further worsen the ongoing flooding across much of the area. Look for the heaviest rainfall to occur across the Plateau area early this morning. * Additional rainfall this morning will combine with the earlier heavy rainfall totals overnight. This will cause excess runoff and areas of flash flooding in the watch area, including fast water level rises on area rivers and creeks. Keep in mind that even though the precipitation will end by afternoon, river levels may still continue to rise. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ 21
840 WGUS64 KOHX 281138 FFAOHX Flood Watch National Weather Service Nashville TN 638 AM CDT Sun Mar 28 2021 TNZ005>007-023>026-056>058-093-094-281245- /O.CAN.KOHX.FF.A.0002.000000T0000Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Stewart-Montgomery-Robertson-Houston-Humphreys-Dickson-Cheatham- Perry-Hickman-Lewis-Wayne-Lawrence- Including the cities of Linden, Waverly, Lawrenceburg, Lobelville, Kingston Springs, McEwen, Clifton, Clarksville, Erin, New Johnsonville, Ashland City, Hohenwald, Dickson, Waynesboro, Centerville, Tennessee Ridge, Springfield, and Dover 638 AM CDT Sun Mar 28 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of Middle Tennessee, including the following areas, Cheatham, Dickson, Hickman, Houston, Humphreys, Lawrence, Lewis, Montgomery, Perry, Robertson, Stewart and Wayne has been cancelled. The Flood Watch is cancelled. $$ TNZ008>011-027>034-059>066-075-077>080-095-282000- /O.CON.KOHX.FF.A.0002.000000T0000Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sumner-Macon-Clay-Pickett-Davidson-Wilson-Trousdale-Smith-Jackson- Putnam-Overton-Fentress-Williamson-Maury-Marshall-Rutherford-Cannon- De Kalb-White-Cumberland-Bedford-Coffee-Warren-Grundy-Van Buren- Giles- Including the cities of Goodlettsville, Crossville, Carthage, Smyrna, La Vergne, Cookeville, Pulaski, Coalmont, Altamont, Jamestown, Murfreesboro, Allardt, Columbia, Brentwood, Tullahoma, Woodbury, McMinnville, Nashville, Hendersonville, Sparta, Livingston, Lafayette, Franklin, Gainesboro, Hartsville, Lewisburg, Spencer, Byrdstown, Mount Juliet, Manchester, Lebanon, Celina, South Carthage, Smithville, Gordonsville, Shelbyville, and Gallatin 638 AM CDT Sun Mar 28 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING FOR PORTIONS OF THE EASTERN TWO THIRDS OF MIDDLE TENNESSEE... The Flash Flood Watch continues for * A portion of Middle Tennessee, including the following areas, Bedford, Cannon, Clay, Coffee, Cumberland, Davidson, De Kalb, Fentress, Giles, Grundy, Jackson, Macon, Marshall, Maury, Overton, Pickett, Putnam, Rutherford, Smith, Sumner, Trousdale, Van Buren, Warren, White, Williamson and Wilson. * Through this evening * Rainfall continues this morning with reported overnight rainfall totals as high as 7 to 10 inches across central portions of the mid state. Additional rainfall totals of up to 1/2 to 1 inch this morning will act to only further worsen the ongoing flooding across much of the area. Look for the heaviest rainfall to occur across the Plateau area this morning. * Additional rainfall this morning will combine with the earlier heavy rainfall totals overnight. This will cause excess runoff and areas of flash flooding in the watch area, including fast water level rises on area rivers and creeks. Keep in mind that even though the precipitation will end by afternoon, river levels may still continue to rise. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ 21
131 WGUS64 KOHX 281648 FFAOHX Flood Watch National Weather Service Nashville TN 1148 AM CDT Sun Mar 28 2021 TNZ008>011-027>034-059>066-075-077>080-095-281800- /O.CAN.KOHX.FF.A.0002.000000T0000Z-210329T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sumner-Macon-Clay-Pickett-Davidson-Wilson-Trousdale-Smith-Jackson- Putnam-Overton-Fentress-Williamson-Maury-Marshall-Rutherford-Cannon- De Kalb-White-Cumberland-Bedford-Coffee-Warren-Grundy-Van Buren- Giles- Including the cities of Goodlettsville, Crossville, Carthage, Smyrna, La Vergne, Cookeville, Pulaski, Coalmont, Altamont, Jamestown, Murfreesboro, Allardt, Columbia, Brentwood, Tullahoma, Woodbury, McMinnville, Nashville, Hendersonville, Sparta, Livingston, Lafayette, Franklin, Gainesboro, Hartsville, Lewisburg, Spencer, Byrdstown, Mount Juliet, Manchester, Lebanon, Celina, South Carthage, Smithville, Gordonsville, Shelbyville, and Gallatin 1148 AM CDT Sun Mar 28 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of Middle Tennessee, including the following areas, Bedford, Cannon, Clay, Coffee, Cumberland, Davidson, De Kalb, Fentress, Giles, Grundy, Jackson, Macon, Marshall, Maury, Overton, Pickett, Putnam, Rutherford, Smith, Sumner, Trousdale, Van Buren, Warren, White, Williamson and Wilson has been cancelled. The Flash Flood Watch is cancelled. Flash flooding is no longer expected to pose a threat, but there will be ongoing river flooding issues. Please continue to heed remaining road closures. $$
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 7:04 PM CDT | Severe Thunderstorm Warning | OHX | Hickman, Lewis, Maury, Williamson | 26 min |
| Mar 25, 7:04 PM CDT | Tornado Warning | OHX | Lewis, Perry, Wayne | 41 min |
| Mar 25, 7:12 PM CDT | Areal Flood Advisory | OHX | Lewis, Perry, Wayne | 2 hr |
| Mar 25, 7:27 PM CDT | Severe Thunderstorm Warning | OHX | Hickman, Lewis, Maury, Williamson | 9 min |
| Mar 25, 7:36 PM CDT | Tornado Warning | OHX | Lawrence, Lewis, Maury, Wayne | 39 min |
| Mar 25, 7:39 PM CDT | Special Weather Statement | OHX | Trousdale, Williamson | 36 min |
| Mar 25, 7:50 PM CDT | Severe Thunderstorm Warning | OHX | Lawrence, Wayne | 40 min |
| Mar 25, 7:52 PM CDT | Severe Thunderstorm Warning | OHX | Davidson, Williamson | 38 min |
| Mar 25, 8:13 PM CDT | Tornado Warning | OHX | Davidson, DeKalb, Rutherford, Smith, Williamson, Wilson | 32 min |
| Mar 25, 8:35 PM CDT | Tornado Warning | OHX | Bedford, Marshall, Maury, Rutherford, Williamson | 25 min |
| Mar 25, 8:41 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Giles, Marshall, Maury, Rutherford | 34 min |
| Mar 25, 8:41 PM CDT | Tornado Warning | OHX | Smith, Trousdale, Wilson | 34 min |
| Mar 25, 8:49 PM CDT | Tornado Warning | OHX | Rutherford | 26 min |
| Mar 25, 9:01 PM CDT | Tornado Warning | OHX | Jackson, Macon, Smith | 14 min |
| Mar 25, 9:09 PM CDT | Severe Thunderstorm Warning | OHX | Cannon, DeKalb, Rutherford, Smith, Wilson | 36 min |
| Mar 25, 9:40 PM CDT | Severe Thunderstorm Warning | OHX | DeKalb, Putnam, White | 35 min |
| Mar 25, 9:53 PM CDT | Areal Flood Advisory | OHX | Davidson | 3 hr |
| Mar 25, 9:54 PM CDT | River Flood Advisory | OHX | Davidson | 3 hr |
| Mar 25, 9:57 PM CDT | River Flood Advisory | OHX | Davidson | 3 hr |
| Mar 25, 10:22 PM CDT | Special Weather Statement | OHX | Fentress, Overton, Pickett, White | 38 min |
| Mar 25, 10:37 PM CDT | Special Weather Statement | OHX | Cumberland | 38 min |
| Mar 25, 10:37 PM CDT | Special Weather Statement | OHX | Grundy, Van Buren | 23 min |
Nearby
Flash Flood Watches in Tennessee, 2021Every flash flood watch 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.