Alert archive / Wisconsin / Flash Flood Watches in 2020
Flash Flood Watch 2, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood watch at Jun 8, 2020, 3:21 AM CDT for 8 counties in Iowa; 13 counties in Wisconsin; 7 counties in Minnesota. It took effect at Jun 9, 2020, 1:00 PM CDT. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Jun 8, 2020, 3:21 AM CDT (08:21 UTC)
- In effect from
- Jun 9, 2020, 1:00 PM CDT
- Expired
- Jun 10, 2020, 2:46 AM CDT
- In force
- 14 hr
- Issued by
- NWS La Crosse, WI
- Flood severity
- None
All 28 counties
Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Buffalo County, WI, Clark County, WI, Crawford County, WI, Grant County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI
The radar
The La Crosse radar (KARX), 27 km from the middle of the area, began a volume at 08:24 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
Minneapolis, MN (KMPX), launched 00:00Z, 8.4 hours before the alert went out and 210 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
- 196 J/kg
- Mixed-layer CIN
- -288 J/kg
- Mixed-layer LCL
- 2143 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 283 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
443 WGUS63 KARX 080821 FFAARX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service La Crosse WI 321 AM CDT Mon Jun 8 2020 ...Heavy Rainfall Expected Tuesday... .The remnants of Tropical Storm Cristobal will track through the area Tuesday, bringing periods of heavy rain to much of the area. Average rainfall amounts of 2 to 3 inches are expected before precipitation tapers off on Wednesday, with some localized areas possibly seeing 4 inches or more of rain, especially where any thunderstorms develop. Flash flooding could develop Tuesday afternoon and evening, with river flooding also a possibility through late week. Those along waterways will want to keep a close eye on conditions the next few days, and be prepared to act if flooding develops. IAZ010-011-029-030-MNZ088-096-WIZ032>034-041>044-053>055-061- 081800- /O.NEW.KARX.FF.A.0002.200609T1800Z-200610T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Winneshiek-Allamakee-Fayette-Clayton-Winona-Houston-Buffalo- Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford- Richland-Grant- Including the cities of Decorah, Waukon, Oelwein, Elkader, Winona, Caledonia, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, Viroqua, Prairie Du Chien, Richland Center, and Platteville 321 AM CDT Mon Jun 8 2020 ...FLASH FLOOD WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING... The National Weather Service in La Crosse has issued a * Flash Flood Watch for portions of northeast Iowa, southeast Minnesota, and Wisconsin, including the following areas, in northeast Iowa, Allamakee, Clayton, Fayette, and Winneshiek. In southeast Minnesota, Houston and Winona. In Wisconsin, Adams, Buffalo, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Trempealeau, and Vernon. * From Tuesday afternoon through Tuesday evening * Periods of heavy rainfall Tuesday afternoon and evening could lead to flash flooding. Rainfall amounts of 2 to 3 inches are expected, with localized amounts in excess of 4 inches possible. * Heavy rainfall could result in flash flooding of low lying or poor drainage areas and could contribute to localized mud or rock slides. Significant rises on larger streams and rivers will also be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Lawrence
9 follow-up statements
944 WGUS63 KARX 081608 FFAARX Flood Watch National Weather Service La Crosse WI 1108 AM CDT Mon Jun 8 2020 ...Heavy Rainfall Expected Tuesday... .The remnants of Tropical Storm Cristobal will track through the area Tuesday, bringing periods of heavy rain to much of the area. Average rainfall amounts of 2 to 3 inches are expected before precipitation tapers off on Wednesday. Some localized areas may see 4 inches or more of rain, especially where any thunderstorms develop. Flash flooding could develop Tuesday afternoon and evening, with some river flooding expected through late week. Those along waterways will want to keep a close eye on conditions the next few days, and be prepared to act if flooding develops. IAZ010-011-029-030-MNZ088-096-WIZ032>034-041>044-053>055-061- 090015- /O.CON.KARX.FF.A.0002.200609T1800Z-200610T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Winneshiek-Allamakee-Fayette-Clayton-Winona-Houston-Buffalo- Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford- Richland-Grant- Including the cities of Decorah, Waukon, Oelwein, Elkader, Winona, Caledonia, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, Viroqua, Prairie Du Chien, Richland Center, and Platteville 1108 AM CDT Mon Jun 8 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING... The Flash Flood Watch continues for * Portions of northeast Iowa, southeast Minnesota, and Wisconsin, including the following areas, in northeast Iowa, Allamakee, Clayton, Fayette, and Winneshiek. In southeast Minnesota, Houston and Winona. In Wisconsin, Adams, Buffalo, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Trempealeau, and Vernon. * From Tuesday afternoon through Tuesday evening * Periods of heavy rainfall Tuesday afternoon and evening could lead to flash flooding. Rainfall amounts of 2 to 3 inches are expected, with localized amounts in excess of 4 inches. * Heavy rainfall could result in flash flooding of low lying or poor drainage areas and could contribute to localized mud or rock slides. Significant rises on larger streams and rivers will also be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ DL/CZ
687 WGUS63 KARX 081849 FFAARX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service La Crosse WI 149 PM CDT Mon Jun 8 2020 ...Heavy Rainfall Expected Tuesday... .The remnants of Tropical Storm Cristobal will track through the area Tuesday, bringing periods of heavy rain to much of the area. Average rainfall amounts of 1.5 to 3.5 inches are expected before precipitation tapers off on Wednesday. The heaviest rains are expected to fall Tuesday afternoon and Tuesday night. Some localized areas may see 4 inches or more of rain, especially where any thunderstorms develop and persist. Flash flooding could develop Tuesday afternoon and evening, with some river flooding expected through late week. Those along waterways will want to keep a close eye on conditions the next few days, and be prepared to act if flooding develops. IAZ008-009-018-019-MNZ079-086-087-094-095-WIZ017-029-090300- /O.EXB.KARX.FF.A.0002.200609T1800Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mitchell-Howard-Floyd-Chickasaw-Wabasha-Dodge-Olmsted-Mower- Fillmore-Taylor-Clark- Including the cities of Osage, Cresco, Charles City, New Hampton, Wabasha, Dodge Center, Rochester, Austin, Preston, Medford, and Neillsville 149 PM CDT Mon Jun 8 2020 ...FLASH FLOOD WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING... The National Weather Service in La Crosse has expanded the * Flash Flood Watch to include portions of Iowa, southeast Minnesota, and Wisconsin, including the following areas, in Iowa, Chickasaw, Floyd, Howard, and Mitchell. In southeast Minnesota, Dodge, Fillmore, Mower, Olmsted, and Wabasha. In Wisconsin, Clark and Taylor. * From Tuesday afternoon through Wednesday morning * Periods of heavy rainfall Tuesday afternoon and evening could lead to flash flooding. Rainfall amounts of 1.5 to 3.5 inches are expected, with localized amounts in excess of 4 inches. * Heavy rainfall could result in flash flooding of low lying or poor drainage areas and could contribute to localized mud or rock slides. Significant rises on larger streams and rivers will also be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ IAZ010-011-029-030-MNZ088-096-WIZ032>034-041>044-053>055-061- 090300- /O.EXT.KARX.FF.A.0002.200609T1800Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Winneshiek-Allamakee-Fayette-Clayton-Winona-Houston-Buffalo- Trempealeau-Jackson-La Crosse-Monroe-Juneau-Adams-Vernon-Crawford- Richland-Grant- Including the cities of Decorah, Waukon, Oelwein, Elkader, Winona, Caledonia, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, Viroqua, Prairie Du Chien, Richland Center, and Platteville 149 PM CDT Mon Jun 8 2020 ...FLASH FLOOD WATCH NOW IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING... The Flash Flood Watch is now in effect for * Portions of northeast Iowa, southeast Minnesota, and Wisconsin, including the following areas, in northeast Iowa, Allamakee, Clayton, Fayette, and Winneshiek. In southeast Minnesota, Houston and Winona. In Wisconsin, Adams, Buffalo, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Trempealeau, and Vernon. * From Tuesday afternoon through Wednesday morning * Periods of heavy rainfall Tuesday afternoon and evening could lead to flash flooding. Rainfall amounts of 1.5 to 3.5 inches are expected, with localized amounts in excess of 4 inches. * Heavy rainfall could result in flash flooding of low lying or poor drainage areas and could contribute to localized mud or rock slides. Significant rises on larger streams and rivers will also be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ CZ/DS
131 WGUS63 KARX 090207 FFAARX Flood Watch National Weather Service La Crosse WI 907 PM CDT Mon Jun 8 2020 ...Heavy Rainfall Arrives Tuesday Afternoon... .The remnants of Tropical Depression Cristobal will track through the area on Tuesday, bringing periods of heavy rain to much of the area, especially Tuesday afternoon and evening. Widespread rainfall amounts of 1.5 to 3.5 inches are expected before precipitation tapers off on Wednesday. Some localized areas may see 4 inches or more of rainfall, especially where thunderstorms repeat over the same area. Flash flooding could develop Tuesday afternoon into Tuesday night, with some river flooding expected through late week. Those along waterways will need to keep a close eye on conditions the next few days and be prepared to act quickly if flooding develops. Have multiple ways to receive warnings. Clear debris from storm drains and house gutters before the heavy rain arrives. IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-091015- /O.CON.KARX.FF.A.0002.200609T1800Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Medford, Neillsville, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, Viroqua, Prairie Du Chien, Richland Center, and Platteville 907 PM CDT Mon Jun 8 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * Portions of Iowa, southeast Minnesota, and Wisconsin, including the following areas, in Iowa, Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell, and Winneshiek. In southeast Minnesota, Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha, and Winona. In Wisconsin, Adams, Buffalo, Clark, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Taylor, Trempealeau, and Vernon. * From Tuesday afternoon through Wednesday morning * Periods of heavy rainfall Tuesday afternoon and evening could lead to flash flooding. Rainfall amounts of 1.5 to 3.5 inches are expected, with localized amounts in excess of 4 inches. * Heavy rainfall could result in flash flooding of low lying or poor drainage areas and could contribute to localized mud or rock slides. Significant rises on larger streams and rivers will also be possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Kurz
525 WGUS63 KARX 090807 FFAARX Flood Watch National Weather Service La Crosse WI 307 AM CDT Tue Jun 9 2020 ...Flash Flooding Could Develop Quickly Later Today... .Periods of heavy rain and thunderstorms will arrive from south to north today, with the heaviest rainfall expected this afternoon and evening as the remnants of Tropical Storm Cristobal track through the region. Widespread rainfall amounts of 1 to 3 inches are expected for all areas, with localized higher amounts of 6 inches or more likely in areas where thunderstorms persist for longer periods of time. The most likely area for higher rainfall amounts will be near and west of the Mississippi River. Those along waterways will want to pay VERY close attention to conditions today and tonight and be ready to act as flash flooding could develop quickly. IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-091800- /O.CON.KARX.FF.A.0002.200609T1800Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Medford, Neillsville, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, Viroqua, Prairie Du Chien, Richland Center, and Platteville 307 AM CDT Tue Jun 9 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * All of northeast Iowa, southeast Minnesota, and much of western and central Wisconsin. * From 1 PM CDT this afternoon through Wednesday morning * Periods of heavy rain will occur this afternoon and evening, with widespread amounts of 1 to 3 inches and localized amounts of 6 inches or more, especially near and west of the Mississippi River. * Flash flooding could develop rapidly later today into tonight. Rock and mud slides could also occur in higher terrain. Those living along waterways are urged to pay very close attention to conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Lawrence
874 WGUS63 KARX 091600 FFAARX Flood Watch National Weather Service La Crosse WI 1100 AM CDT Tue Jun 9 2020 ...Heavy Rainfall/Possible Flash Flooding This Afternoon Into This Evening... .Heavy rain and embedded thunderstorms will fill in from the south this afternoon. The heaviest rainfall is expected this afternoon and evening as the remnants of Tropical Storm Cristobal track through the area. Widespread rainfall amounts of 1.5 to 4 inches are expected for all areas, with localized higher amounts of 6 inches or more likely in areas where thunderstorms persist for longer periods of time. The most likely area for higher rainfall amounts will across portions of northeast IA, southeast Minnesota.into western WI. People living or with interests along waterways will want to pay VERY close attention to conditions this afternoon into tonight and be ready to act as flash flooding could develop quickly. IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-100000- /O.CON.KARX.FF.A.0002.200609T1800Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Medford, Neillsville, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, Viroqua, Prairie Du Chien, Richland Center, and Platteville 1100 AM CDT Tue Jun 9 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * Portions of Iowa, southeast Minnesota, and Wisconsin, including the following areas, in Iowa, Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell, and Winneshiek. In southeast Minnesota, Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha, and Winona. In Wisconsin, Adams, Buffalo, Clark, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Taylor, Trempealeau, and Vernon. * Through Wednesday morning * Periods of heavy rain will occur this afternoon and evening, with widespread amounts of 1.5 to 4 inches and localized amounts of 6 inches or more, especially near and west of the Mississippi River. * Flash flooding could develop rapidly this afternoon into tonight. Rock and mud slides could also occur in higher terrain. Those living along waterways are urged to pay very close attention to conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ DAS
490 WGUS63 KARX 092250 FFAARX Flood Watch National Weather Service La Crosse WI 550 PM CDT Tue Jun 9 2020 ...Flash Flooding Possible This Evening Into The Overnight... .Widespread rain, heavy at times, will continue to impact the area through 11 PM. Total rainfall amounts of 2 to 4 inches are expected, with localized higher amounts possible, especially for areas near and west of the Mississippi River. Be alert for rising water levels tonight along area rivers with flooding possible where the heaviest rain falls. People living or with interests along waterways will want to pay close attention to conditions this evening into the overnight. IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-100700- /O.CON.KARX.FF.A.0002.000000T0000Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Medford, Neillsville, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, Viroqua, Prairie Du Chien, Richland Center, and Platteville 550 PM CDT Tue Jun 9 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING... The Flash Flood Watch continues for * Portions of Iowa, southeast Minnesota, and Wisconsin, including the following areas, in Iowa, Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell, and Winneshiek. In southeast Minnesota, Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha, and Winona. In Wisconsin, Adams, Buffalo, Clark, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Taylor, Trempealeau, and Vernon. * Through Wednesday morning * Rainfall of 2 to 4 inches expected with localized higher amounts possible. * Flash flooding is possible. Rock and mud slides could also occur in steeper terrain. Those living along waterways are urged to pay very close attention to conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Those camping in low lying areas should be ready to move to higher ground should flash flooding develop. && $$
347 WGUS63 KARX 100252 FFAARX Flood Watch National Weather Service La Crosse WI 952 PM CDT Tue Jun 9 2020 ...Flash Flooding Possible for Some Areas into the Overnight... .Rain is slowly tapering off across the area from southwest to northeast as the system departs. However, pockets of moderate rainfall will continue to impact portions of west-central and north-central Wisconsin into the early morning hours. Until then, expect additional rainfall in this area of up to 1 to 2 inches which may still lead to localized flash flooding. There have been several reports this evening of mudslides and trees being uprooted. People living or with interests along waterways need to pay close attention to conditions overnight. Remain alert for rising water levels along area rivers. IAZ008>011-018-019-029-030-MNZ086-087-094-095-WIZ054-055-061- 100400- /O.CAN.KARX.FF.A.0002.000000T0000Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Dodge-Olmsted-Mower-Fillmore-Crawford-Richland-Grant- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Dodge Center, Rochester, Austin, Preston, Prairie Du Chien, Richland Center, and Platteville 952 PM CDT Tue Jun 9 2020 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of Iowa, southeast Minnesota, and southwest Wisconsin has been cancelled. Heavy rains have ended across the area, and flash flooding is no longer expected to pose a threat. $$ MNZ079-088-096-WIZ017-029-032>034-041>044-053-101100- /O.CON.KARX.FF.A.0002.000000T0000Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Wabasha-Winona-Houston-Taylor-Clark-Buffalo-Trempealeau-Jackson- La Crosse-Monroe-Juneau-Adams-Vernon- Including the cities of Wabasha, Winona, Caledonia, Medford, Neillsville, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, and Viroqua 952 PM CDT Tue Jun 9 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY... The Flash Flood Watch continues for * Portions of southeast Minnesota and Wisconsin, including the following areas, in southeast Minnesota, Houston, Wabasha, and Winona. In Wisconsin, Adams, Buffalo, Clark, Jackson, Juneau, La Crosse, Monroe, Taylor, Trempealeau, and Vernon. * Until 7 AM CDT Wednesday * Additional rainfall of up to 1 to 2 inches possible. * Flash flooding is possible. Rock and mud slides have been reported. Those living along waterways are urged to pay very close attention to conditions overnight. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Those camping in low lying areas should be ready to move to higher ground should flash flooding develop. && $$ Kurz
388 WGUS63 KARX 100525 FFAARX Flood Watch National Weather Service La Crosse WI 1225 AM CDT Wed Jun 10 2020 ...Heavier Rainfall Gradually Diminishing... .Rain continues to slowly taper off, now focused mainly across north-central Wisconsin. Pockets of more moderate rainfall remain possible until the rain completely tapers off early this morning. Until then, expect additional rainfall of up to 1 inch. With soils already saturated, this additional rainfall may lead to localized flash flooding. People living or with interests along waterways need to pay close attention to conditions overnight. Remain alert for rising water levels along area rivers. MNZ079-088-096-WIZ032>034-041>044-053-100630- /O.CAN.KARX.FF.A.0002.000000T0000Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Wabasha-Winona-Houston-Buffalo-Trempealeau-Jackson-La Crosse- Monroe-Juneau-Adams-Vernon- Including the cities of Wabasha, Winona, Caledonia, Alma, Arcadia, Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston, Friendship, and Viroqua 1225 AM CDT Wed Jun 10 2020 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of southeast Minnesota and Wisconsin has been cancelled. Widespread heavy rain has ended across the area, and flash flooding is no longer expected to pose a threat. $$ WIZ017-029-101200- /O.CON.KARX.FF.A.0002.000000T0000Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Taylor-Clark- Including the cities of Medford and Neillsville 1225 AM CDT Wed Jun 10 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... The Flash Flood Watch continues for * Clark and Taylor counties in Wisconsin * Until 7 AM CDT this morning * Additional rainfall of up to 1 inch possible. * Flash flooding is possible. Those living along waterways are urged to pay very close attention to conditions overnight. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. Please monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Those camping in low lying areas should be ready to move to higher ground should flash flooding develop. && $$ Kurz
820 WGUS63 KARX 100746 FFAARX Flood Watch National Weather Service La Crosse WI 246 AM CDT Wed Jun 10 2020 ...The Threat For Heavy Rain Has Ended... .The remaining area of heavy rain has shifted north of the area. With little additional rain expected for the rest of the night, there is very little threat for any new flooding developing and as a result the Flash Flood Watch has been cancelled. WIZ017-029-100900- /O.CAN.KARX.FF.A.0002.000000T0000Z-200610T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Taylor-Clark- Including the cities of Medford and Neillsville 246 AM CDT Wed Jun 10 2020 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central Wisconsin and north central Wisconsin has been cancelled. The widespread heavy rain has ended across the area and no new flash flooding is expected to occur. $$ 04
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS La Crosse, WI wrote its last area forecast discussion before this flash flood watch went out at Jun 8, 3:14 AM CDT, 7 minutes earlier.
Area forecast discussion, Jun 8, 3:14 AM CDT, 7 minutes before
Area Forecast Discussion
National Weather Service La Crosse WI
314 AM CDT Mon Jun 8 2020
.SHORT TERM...(Today through Wednesday Night)
Issued at 314 AM CDT Mon Jun 8 2020
Hang on folks - lots of weather to talk about over the next 3 days.
Quick peek at the early morning analysis shows quite the amplified
pattern continuing over the CONUS, featuring broad/strong upper
troughing over much of the western states, while broad ridging is
centered from the Tennessee Valley northward through the Great
Lakes, in advance of the most notable feature - Tropical Storm
Cristobal working north through LA/MS at this early hour. Plenty of
ongoing convection well to our northwest on the nose of a strong low
level jet pointed up into northern Minnesota while around these
parts, all is quiet on the home front given a lack of forcing and
drier air with mid level ridging/capping firmly in place.
That won't change much today, with a quite sunny day and very warm
day expected as capping holds firm while 925 mb temperatures working
into the 24-27C range support highs in the upper 80s and lower 90s
for pretty much all areas. As alluded to in this space yesterday,
will watch an interesting area of drier air aloft circulating
northwestward out of the Ohio Valley later this afternoon, with a
pronounced dry wedge above 900 mb arriving for parts of northeast
Iowa into western Wisconsin during peak heating, supporting the
notion of dew points mixing out perhaps into the 50s, similar to
what occurred under that pocket well to our east on Sunday. Not a
big deal but will be neat to watch.
Of course, the focus then shifts to the well-advertised remnants of
Cristobal as the system lifts pretty much due north through the
region on Tuesday. Still a bit of a question regarding exactly where
the system will track owing to how fast stronger shortwave energy
drives east through the Central Plains, but confidence is high the
track will be between the goal posts of the Mississippi River on the
west to the I-39 corridor on the east. As mentioned previously, that
track will have a good deal to say about a localized spin-up tornado
threat directly ahead of the low with substantial low level
turning/shear in a tropically moist environment (i.e. low CAPE/high
shear). Per current trends, that risk would be highest across
central Wisconsin but a somewhat slower trend noted with the
system may preclude the best overlap of instability/shear as the
strongest hodograph curvature arrives after sunset.
Main show still looks to be a slug of heavy rainfall for much of the
area with PWAT values surging toward 2+ inches and warm cloud depths
just plain impressive at 4.5+ km (maxing out this forecaster's
display). Limiting factor continues to be a fast forward speed of
the storm, but given strong forcing/moisture transport in said
tropical environment, it won't take long to put down some fairly
hefty rain amounts, augmented by any convective elements. At the
moment, not entirely sure how much of a true flash flood threat will
exist given expectations for an areal coverage of 2-3 inches of rain
for many areas falling over ~6 hours, but of course localized
training bands of convection coupled with steep local terrain
would do the trick. Will continue to monitor, but this setup could
end up featuring more of a widespread longer duration river flood
threat, particularly with additional rainfall becoming likely
into Wednesday with continued strong hints that the emerging
energy from the Central Plains will close off nearby and light off
another batch of deformation- driven precipitation for much of
the area (exact placement to be determined). After coordination
with surrounding offices, will opt for a Flash Flood Watch Tuesday
afternoon/evening roughly along and east of the Mississippi River,
though placement may need some tweaks along the way.
Finally, not to be forgotten remains wind potential into Wednesday.
To be honest, this forecaster's confidence in how high winds will
get is somewhat low only given remaining discrepancies in how the
surface pressure pattern will evolve. It certainly appears as if the
remnants of Cristobal will continue to deepen as it gains latitude
given a coupled jet structure in place and other driving dynamics
aloft, but how a potential secondary low develops (or doesn't) in
associated with the secondary piece of shortwave energy is very much
in question. A weaker secondary low would deliver a much baggier
gradient over the local area for much of Wednesday, supportive of
much lighter winds here, but a rapidly deepening wave to the north
as well as second feature nearby would support a very tight gradient
and rapid cranking of the flow aloft (to the tune of 50+ knots above
900 mb). That latter more amplified setup would also favor some
quite chilly air wrapping into the area through the day Wednesday,
with some guidance suggestive of temperatures only in the 50s for
many areas with gust potential of 40+ mph. Suffice it to say this
forecaster doesn't yet have all the answers regarding wind but need
to monitor closely given what should be very wet soils and the
potential for trees to more easily topple.
Wow...that's a lot. One final note for all of you who made it this
far - depending on just how deep the surface wave is by the time it
reaches here (some indications of sub-990mb), we could flirt with
some June pressure records. Only readily available records at the
moment are La Crosse with an all-time June low value of 987.8mb set
on June 6, 1917 and Rochester with a reading of 988.7mb back on June
7, 2008. Could be close!
.LONG TERM...(Thursday through Sunday)
Issued at 314 AM CDT Mon Jun 8 2020
Quieter weather still on track to arrive for late week and into the
weekend but with quite a few questions about how the overall upper
pattern will evolve. ECMWF is now insistent in building pronounced
mid level ridging north into the area for the weekend, whereas the
GFS and nearly all of the GEFS ensembles insist quite the opposite
as upper troughing and quite chilly air aloft hang tight. A classic
model battle royale! For obvious reasons didn't have much time to
dig into the details so will let a blend ride at this point and sort
out those details later. Thankfully, regardless of a cooler or
warmer solution that ultimately wins out, mainly dry conditions
appear probable for much of the period.
&&
.AVIATION...(For the 06Z TAFS through 06Z Monday night)
Issued at 1142 PM CDT Sun Jun 7 2020
Southerly winds have lessened some across the area, though there are
still some gusts upwards of 20 to 25 kts across southeast Minnesota.
With the low-level jet kicking up, LLWS is occurring across the
area with 2k ft winds ranging from 40 to 45 kts. It will be rather
borderline at KRST with surface sustained winds around 15 kts,
but decided to include it with this issuance as radar vertical
wind profile has 2k ft winds of 40 kts at KARX and between 45 and
50 kts at KMPX as of 05Z. Winds increase by mid to late morning,
with gusts in the 20 to 30 kt range through early evening.
Otherwise, VFR conditions continue through the TAF period.
&&
.HYDROLOGY...
Issued at 314 AM CDT Mon Jun 8 2020
A period of heavy rain appears on track arriving Tuesday afternoon
and evening, with lighter rainfall lingering into Wednesday.
Average rainfall amounts of 2-3 inches are expected as tropical
moisture works into the region, with the potential for both
localized flash flooding where heavier rains traverse the same
areas and longer duration river flooding. A Flash Flood Watch has
been issued for areas along and east of the Mississippi River
where the risk for localized flash flooding appears maximized with
expectations for the heavier rainfall and steeper terrain.
&&
.ARX WATCHES/WARNINGS/ADVISORIES...
WI...Flash Flood Watch from Tuesday afternoon through Tuesday evening
for WIZ032>034-041>044-053>055-061.
MN...Flash Flood Watch from Tuesday afternoon through Tuesday evening
for MNZ088-096.
IA...Flash Flood Watch from Tuesday afternoon through Tuesday evening
for IAZ010-011-029-030.
&&
SHORT TERM...Lawrence
LONG TERM...Lawrence
AVIATION...NMB
HYDROLOGY...LawrenceHazardous weather outlook, Jun 7, 3:27 AM CDT, 23 hours 54 minutes before
Hazardous Weather Outlook National Weather Service La Crosse WI 327 AM CDT Sun Jun 7 2020 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-081200- Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- 327 AM CDT Sun Jun 7 2020 This Hazardous Weather Outlook is for portions of southeast Minnesota, northeast Iowa, and southwest into central Wisconsin. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday Periods of rain and a few thunderstorms are expected Tuesday and Wednesday. Severe storms are not expected at this time, but heavy rainfall is likely for much of the area. Depending on exact rain amounts, some flooding could develop for mid and late week. Please continue to monitor the latest forecasts at weather.gov/lacrosse. .SPOTTER INFORMATION STATEMENT... No action needed. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled. Lawrence
Nearby
Flash Flood Watches in Wisconsin, 2020Flash Flood Watches in Iowa, 2020Flash Flood Watches in Minnesota, 2020Every flash flood watch in 2020
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.