Alert archive / Ohio / Flash Flood Watches in 2020
Flash Flood Watch 1, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood watch at Mar 27, 2020, 12:07 PM EDT for 28 counties in Ohio; Crawford County, Erie County, Pennsylvania. It took effect at Mar 28, 2020, 12:00 AM EDT. It was in force for 30 hr.
The area
The counties it named.
The facts
- Issued
- Mar 27, 2020, 12:07 PM EDT (16:07 UTC)
- In effect from
- Mar 28, 2020, 12:00 AM EDT
- Expired
- Mar 29, 2020, 5:30 AM EDT
- In force
- 30 hr
- Issued by
- NWS Cleveland, OH
- Flood severity
- None
All 30 counties
Ashland County, OH, Ashtabula County, OH, Crawford County, OH, Cuyahoga County, OH, Erie County, OH, Geauga County, OH, Hancock County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Portage County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH, Crawford County, PA, Erie County, PA
The radar
The Cleveland radar (KCLE), 34 km from the middle of the area, began a volume at 16:12 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
Pittsburgh, PA (KPIT), launched 12:00Z, 4.1 hours before the alert went out and 189 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
- 722 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
542 WGUS61 KCLE 271607 FFACLE URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Cleveland OH 1207 PM EDT Fri Mar 27 2020 ...FLASH FLOODING POTENTIAL TONIGHT ACROSS THE U.S. 30 CORRIDOR WEST OF I-71... .A warm front is expected to lift north into the area tonight. A line of storms with heavy rain is expected to linger around the U.S. 30 corridor late tonight and into late Saturday morning. A series of back building storms are expected to develop along this boundary bringing multiple rounds of heavy rain through late morning Saturday. A widespread 1 to 2 inches of rain are likely along a line from Findlay to Mansfield, with locally higher amounts of 3 inches or greater. OHZ017>019-027>030-036-037-047-280015- /O.NEW.KCLE.FF.A.0001.200328T0400Z-200328T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hancock-Seneca-Huron-Wyandot-Crawford-Richland-Ashland-Marion- Morrow-Knox- Including the cities of Findlay, Tiffin, Norwalk, Upper Sandusky, Bucyrus, Mansfield, Ashland, Marion, Mount Gilead, and Mount Vernon 1207 PM EDT Fri Mar 27 2020 ...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... The National Weather Service in Cleveland has issued a * Flash Flood Watch for portions of north central Ohio and northwest Ohio, including the following areas, in north central Ohio, Ashland, Crawford, Huron, Knox, Marion, Morrow, and Richland. In northwest Ohio, Hancock, Seneca, and Wyandot. * From late tonight through Saturday morning * A stalled line of heavy rain and thunderstorms will develop tonight through late Saturday morning near the U.S. 30 corridor, and mainly west of Interstate 71. Widespread 1 to 2 inches of rain are likely along a line from Findlay to Mansfield with locally higher amounts of 3 inches or greater. * Flash flooding will lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$
8 follow-up statements
652 WGUS61 KCLE 271909 FFACLE URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Cleveland OH 309 PM EDT Fri Mar 27 2020 ...FLASH FLOODING POTENTIAL TONIGHT ACROSS THE U.S. 30 CORRIDOR WEST OF I-71... .A warm front is expected to lift north into the area tonight. A line of storms with heavy rain is expected to linger around the U.S. 30 corridor late tonight and into late Saturday morning. A series of back building storms are expected to develop along this boundary bringing multiple rounds of heavy rain through late morning Saturday. A widespread 1 to 2 inches of rain are likely along a line from Findlay to Mansfield, with locally higher amounts of 3 inches or greater. OHZ006-008-280315- /O.EXA.KCLE.FF.A.0001.200328T0400Z-200328T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Wood-Sandusky- Including the cities of Bowling Green and Fremont 309 PM EDT Fri Mar 27 2020 ...FLASH FLOOD WATCH IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... The National Weather Service in Cleveland has expanded the * Flash Flood Watch to include a portion of northwest Ohio, including the following areas, Sandusky and Wood. * From midnight EDT tonight through Saturday morning * A stalled line of heavy rain and thunderstorms will develop tonight through late Saturday morning near the U.S. 30 corridor, and mainly west of Interstate 71. Widespread 1 to 2 inches of rain are likely along a line from Findlay to Mansfield with locally higher amounts of 3 inches or greater. * Flash flooding will lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$ OHZ017>019-027>030-036-037-047-280315- /O.CON.KCLE.FF.A.0001.200328T0400Z-200328T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hancock-Seneca-Huron-Wyandot-Crawford-Richland-Ashland-Marion- Morrow-Knox- Including the cities of Findlay, Tiffin, Norwalk, Upper Sandusky, Bucyrus, Mansfield, Ashland, Marion, Mount Gilead, and Mount Vernon 309 PM EDT Fri Mar 27 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... The Flash Flood Watch continues for * Portions of north central Ohio and northwest Ohio, including the following areas, in north central Ohio, Ashland, Crawford, Huron, Knox, Marion, Morrow, and Richland. In northwest Ohio, Hancock, Seneca, and Wyandot. * From midnight EDT tonight through Saturday morning * A stalled line of heavy rain and thunderstorms will develop tonight through late Saturday morning near the U.S. 30 corridor, and mainly west of Interstate 71. Widespread 1 to 2 inches of rain are likely along a line from Findlay to Mansfield with locally higher amounts of 3 inches or greater. * Flash flooding will lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$
939 WGUS61 KCLE 280310 FFACLE Flood Watch National Weather Service Cleveland OH 1110 PM EDT Fri Mar 27 2020 ...FLASH FLOODING POTENTIAL TONIGHT ACROSS THE U.S. 30 CORRIDOR WEST OF I-71... .A warm front is expected to lift north into the area tonight. Widespread showers and thunderstorms are expected to move through the area overnight through late Saturday morning, with a few rounds of heavy rain across portions of northwest and north central Ohio. A widespread 1 to 2 inches of rain are likely along a line generally from Findlay to Mansfield, with locally higher amounts of 3 inches or greater possible. OHZ006-008-017>019-027>030-036-037-047-281115- /O.CON.KCLE.FF.A.0001.200328T0400Z-200328T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Wood-Sandusky-Hancock-Seneca-Huron-Wyandot-Crawford-Richland- Ashland-Marion-Morrow-Knox- Including the cities of Bowling Green, Fremont, Findlay, Tiffin, Norwalk, Upper Sandusky, Bucyrus, Mansfield, Ashland, Marion, Mount Gilead, and Mount Vernon 1110 PM EDT Fri Mar 27 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING... The Flash Flood Watch continues for * Portions of north central Ohio and northwest Ohio, including the following areas, in north central Ohio, Ashland, Crawford, Huron, Knox, Marion, Morrow, and Richland. In northwest Ohio, Hancock, Sandusky, Seneca, Wood, and Wyandot. * Through Saturday morning * A few rounds of heavy rain and thunderstorms will develop and move through the area tonight through late Saturday morning, generally near the U.S. 30 corridor, and mainly west of Interstate 71. Widespread 1 to 2 inches of rain are likely along a line from Findlay to Mansfield with locally higher amounts of 3 inches or greater possible. * Flash flooding could lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$
987 WGUS61 KCLE 280715 FFACLE Flood Watch National Weather Service Cleveland OH 315 AM EDT Sat Mar 28 2020 ...FLASH FLOODING POTENTIAL CONTINUES ACROSS THE U.S. 30 CORRIDOR WEST OF I-71... .A warm front lifting north into the area at this time will continue to cause widespread showers and thunderstorms through late this morning, with a few rounds of heavy rain across portions of northwest and north central Ohio. A widespread 1 to 2 inches of rain is possible along a line generally from Findlay to Mansfield, with locally higher amounts of 3 inches or greater possible. OHZ006-008-017>019-027>030-036-037-047-281515- /O.CON.KCLE.FF.A.0001.000000T0000Z-200328T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Wood-Sandusky-Hancock-Seneca-Huron-Wyandot-Crawford-Richland- Ashland-Marion-Morrow-Knox- Including the cities of Bowling Green, Fremont, Findlay, Tiffin, Norwalk, Upper Sandusky, Bucyrus, Mansfield, Ashland, Marion, Mount Gilead, and Mount Vernon 315 AM EDT Sat Mar 28 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL NOON EDT TODAY... The Flash Flood Watch continues for * Portions of north central Ohio and northwest Ohio, including the following areas, in north central Ohio, Ashland, Crawford, Huron, Knox, Marion, Morrow, and Richland. In northwest Ohio, Hancock, Sandusky, Seneca, Wood, and Wyandot. * Until noon EDT today * A few rounds of heavy rain and thunderstorms will move through the area this morning, generally near the U.S. 30 corridor, and mainly west of Interstate 71. Widespread 1 to 2 inches of rain are possible along a line from Findlay to Mansfield with locally higher amounts of 3 inches or greater possible. * Possible flash flooding could lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$
383 WGUS61 KCLE 281533 FFACLE URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Cleveland OH 1133 AM EDT Sat Mar 28 2020 ...FLASH FLOODING POSSIBLE THROUGH SUNDAY MORNING ACROSS NORTHERN OHIO AND NORTHWEST PENNSYLVANIA... .Multiple rounds of showers and thunderstorms are expected through tonight as a slow moving warm front lifts north across the area. This warm front will provide a focus for heavy rainfall which may be heavy at times and provide a focus for storms to train over the same areas. Portions of the watch area received an inch of more of rainfall over the last 24 hours. Much of this area can expect another inch to inch and a half of rain through midday Sunday which could result in flash flooding. OHZ017-027>030-036-037-047-281645- /O.CAN.KCLE.FF.A.0001.000000T0000Z-200328T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hancock-Wyandot-Crawford-Richland-Ashland-Marion-Morrow-Knox- Including the cities of Findlay, Upper Sandusky, Bucyrus, Mansfield, Ashland, Marion, Mount Gilead, and Mount Vernon 1133 AM EDT Sat Mar 28 2020 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of North Central Ohio and Northwest Ohio has been cancelled. While additional showers and thunderstorms remain possible across this area this afternoon and tonight, the heaviest rain is expected to be focused across northern Ohio. Motorists should continue to use caution if driving in thunderstorms and avoid any areas with high water. $$ OHZ003-007-009>014-020>023-089-PAZ001>003-282345- /O.EXB.KCLE.FF.A.0001.000000T0000Z-200329T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lucas-Ottawa-Erie-Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland- Medina-Summit-Portage-Trumbull-Ashtabula Lakeshore-Northern Erie- Southern Erie-Crawford- Including the cities of Toledo, Port Clinton, Sandusky, Lorain, Cleveland, Mentor, Chardon, Jefferson, Medina, Akron, Ravenna, Warren, Ashtabula, Erie, Edinboro, and Meadville 1133 AM EDT Sat Mar 28 2020 ...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY MORNING... The National Weather Service in Cleveland has expanded the * Flash Flood Watch to include portions of Ohio and northwest Pennsylvania, including the following areas, in Ohio, Ashtabula Inland, Ashtabula Lakeshore, Cuyahoga, Erie, Geauga, Lake, Lorain, Lucas, Medina, Ottawa, Portage, Summit, and Trumbull. In northwest Pennsylvania, Crawford, Northern Erie, and Southern Erie. * Through Sunday morning * Multiple rounds of showers and thunderstorms will move across the area through Sunday morning. Portions of the area received over an inch of rain in the last 24 hours and may receive an additional 1 to 1.5 inches through Sunday morning. Training of storms is also possible with locally higher amounts. * Possible flash flooding could lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$ OHZ006-008-018-019-282345- /O.EXT.KCLE.FF.A.0001.000000T0000Z-200329T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Wood-Sandusky-Seneca-Huron- Including the cities of Bowling Green, Fremont, Tiffin, and Norwalk 1133 AM EDT Sat Mar 28 2020 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SUNDAY MORNING... The Flash Flood Watch is now in effect for * Portions of north central Ohio and northwest Ohio, including the following areas, in north central Ohio, Huron. In northwest Ohio, Sandusky, Seneca, and Wood. * Through Sunday morning * Multiple rounds of showers and thunderstorms will move across the area through Sunday morning. Portions of the area received over an inch of rain in the last 24 hours and may receive an additional 1 to 1.5 inches through Sunday morning. Training of storms is also possible with locally higher amounts. * Possible flash flooding could lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$
680 WGUS61 KCLE 282007 FFACLE Flood Watch National Weather Service Cleveland OH 407 PM EDT Sat Mar 28 2020 ...FLASH FLOODING POSSIBLE THROUGH SUNDAY MORNING ACROSS NORTHERN OHIO AND NORTHWEST PENNSYLVANIA... .Multiple rounds of showers and thunderstorms are expected through tonight as a slow moving warm front lifts north across the area. This warm front will provide a focus for heavy rainfall which may be heavy at times and provide a focus for storms to train over the same areas. Portions of the watch area received an inch of more of rainfall over the last 24 hours. Much of this area can expect another inch to inch and a half of rain through midday Sunday which could result in flash flooding. OHZ003-006>014-018>023-089-PAZ001>003-290415- /O.CON.KCLE.FF.A.0001.000000T0000Z-200329T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga- Ashtabula Inland-Seneca-Huron-Medina-Summit-Portage-Trumbull- Ashtabula Lakeshore-Northern Erie-Southern Erie-Crawford- Including the cities of Toledo, Bowling Green, Port Clinton, Fremont, Sandusky, Lorain, Cleveland, Mentor, Chardon, Jefferson, Tiffin, Norwalk, Medina, Akron, Ravenna, Warren, Ashtabula, Erie, Edinboro, and Meadville 407 PM EDT Sat Mar 28 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING... The Flash Flood Watch continues for * Portions of Ohio and northwest Pennsylvania, including the following areas, in Ohio, Ashtabula Inland, Ashtabula Lakeshore, Cuyahoga, Erie, Geauga, Huron, Lake, Lorain, Lucas, Medina, Ottawa, Portage, Sandusky, Seneca, Summit, Trumbull, and Wood. In northwest Pennsylvania, Crawford, Northern Erie, and Southern Erie. * Through Sunday morning * Multiple rounds of showers and thunderstorms will move across the area through Sunday morning. Portions of the area received over an inch of rain in the last 24 hours and may receive an additional 1 to 1.5 inches through Sunday morning. Training of storms is also possible with locally higher amounts. * Possible flash flooding could lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$
305 WGUS61 KCLE 282250 FFACLE URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Cleveland OH 650 PM EDT Sat Mar 28 2020 ...FLASH FLOODING POSSIBLE THROUGH SUNDAY MORNING ACROSS NORTHERN OHIO AND NORTHWEST PENNSYLVANIA... .Multiple rounds of showers and thunderstorms are expected through tonight as a slow moving warm front lifts north across the area. This warm front will provide a focus for heavy rainfall which may be heavy at times and provide a focus for storms to train over the same areas. Portions of the watch area received an inch of more of rainfall over the last 24 hours. Much of this area can expect another inch to inch and a half of rain through midday Sunday which could result in flash flooding. OHZ017-027>033-036>038-047-290700- /O.EXA.KCLE.FF.A.0001.000000T0000Z-200329T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hancock-Wyandot-Crawford-Richland-Ashland-Wayne-Stark-Mahoning- Marion-Morrow-Holmes-Knox- Including the cities of Findlay, Upper Sandusky, Bucyrus, Mansfield, Ashland, Wooster, Canton, Youngstown, Marion, Mount Gilead, Millersburg, and Mount Vernon 650 PM EDT Sat Mar 28 2020 ...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY MORNING... The National Weather Service in Cleveland has expanded the * Flash Flood Watch to include portions of north central Ohio, northeast Ohio, and northwest Ohio, including the following areas, in north central Ohio, Ashland, Crawford, Knox, Marion, Morrow, and Richland. In northeast Ohio, Holmes, Mahoning, Stark, and Wayne. In northwest Ohio, Hancock and Wyandot. * Through Sunday morning * Multiple rounds of showers and thunderstorms will move across the area through Sunday morning. Some storms may contain heavy rain. Training of storms is also possible with locally higher amounts possibly leading to flash flooding. * Possible flash flooding could lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$ OHZ003-006>014-018>023-089-PAZ001>003-290700- /O.CON.KCLE.FF.A.0001.000000T0000Z-200329T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga- Ashtabula Inland-Seneca-Huron-Medina-Summit-Portage-Trumbull- Ashtabula Lakeshore-Northern Erie-Southern Erie-Crawford- Including the cities of Toledo, Bowling Green, Port Clinton, Fremont, Sandusky, Lorain, Cleveland, Mentor, Chardon, Jefferson, Tiffin, Norwalk, Medina, Akron, Ravenna, Warren, Ashtabula, Erie, Edinboro, and Meadville 650 PM EDT Sat Mar 28 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING... The Flash Flood Watch continues for * Portions of Ohio and northwest Pennsylvania, including the following areas, in Ohio, Ashtabula Inland, Ashtabula Lakeshore, Cuyahoga, Erie, Geauga, Huron, Lake, Lorain, Lucas, Medina, Ottawa, Portage, Sandusky, Seneca, Summit, Trumbull, and Wood. In northwest Pennsylvania, Crawford, Northern Erie, and Southern Erie. * Through Sunday morning * Multiple rounds of showers and thunderstorms will move across the area through Sunday morning. Portions of the area received over an inch of rain in the last 24 hours and may receive an additional 1 to 1.5 inches through Sunday morning. Training of storms is also possible with locally higher amounts. * Possible flash flooding could lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$
786 WGUS61 KCLE 290614 FFACLE Flood Watch National Weather Service Cleveland OH 214 AM EDT Sun Mar 29 2020 ...FLASH FLOODING POSSIBLE THROUGH SUNDAY MORNING ACROSS NORTHERN OHIO AND NORTHWEST PENNSYLVANIA... .Multiple rounds of showers and thunderstorms are expected through tonight as a slow moving warm front lifts north across the area. This warm front will provide a focus for heavy rainfall which may be heavy at times and provide a focus for storms to train over the same areas. Portions of the watch area received an inch of more of rainfall over the last 24 hours. Much of this area can expect another inch to inch and a half of rain through midday Sunday which could result in flash flooding. OHZ003-006>009-017>019-027-028-036-290715- /O.CAN.KCLE.FF.A.0001.000000T0000Z-200329T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lucas-Wood-Ottawa-Sandusky-Erie-Hancock-Seneca-Huron-Wyandot- Crawford-Marion- Including the cities of Toledo, Bowling Green, Port Clinton, Fremont, Sandusky, Findlay, Tiffin, Norwalk, Upper Sandusky, Bucyrus, and Marion 214 AM EDT Sun Mar 29 2020 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of north central Ohio and northwest Ohio has been cancelled. The heaviest axis of showers and thunderstorms have moved east into northeastern Ohio. $$ OHZ010>014-020>023-029>033-037-038-047-089-PAZ001>003-291600- /O.CON.KCLE.FF.A.0001.000000T0000Z-200329T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Medina-Summit- Portage-Trumbull-Richland-Ashland-Wayne-Stark-Mahoning-Morrow- Holmes-Knox-Ashtabula Lakeshore-Northern Erie-Southern Erie- Crawford- Including the cities of Lorain, Cleveland, Mentor, Chardon, Jefferson, Medina, Akron, Ravenna, Warren, Mansfield, Ashland, Wooster, Canton, Youngstown, Mount Gilead, Millersburg, Mount Vernon, Ashtabula, Erie, Edinboro, and Meadville 214 AM EDT Sun Mar 29 2020 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL NOON EDT TODAY... The Flash Flood Watch continues for * Portions of Ohio and northwest Pennsylvania, including the following areas, in Ohio, Ashland, Ashtabula Inland, Ashtabula Lakeshore, Cuyahoga, Geauga, Holmes, Knox, Lake, Lorain, Mahoning, Medina, Morrow, Portage, Richland, Stark, Summit, Trumbull, and Wayne. In northwest Pennsylvania, Crawford, Northern Erie, and Southern Erie. * Until noon EDT today * Multiple rounds of showers and thunderstorms will move across the area through Sunday morning. Portions of the area received over an inch of rain in the last 24 hours and may receive an additional 1 to 1.5 inches through Sunday morning. Training of storms is also possible with locally higher amounts. * Possible flash flooding could lead to rapidly rising and swift moving water in creeks and low lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch is issued when there is a potential for flash flooding. Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$
384 WGUS61 KCLE 290930 FFACLE Flood Watch National Weather Service Cleveland OH 530 AM EDT Sun Mar 29 2020 OHZ010>014-020>023-029>033-037-038-047-089-PAZ001>003-291030- /O.CAN.KCLE.FF.A.0001.000000T0000Z-200329T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Medina-Summit- Portage-Trumbull-Richland-Ashland-Wayne-Stark-Mahoning-Morrow- Holmes-Knox-Ashtabula Lakeshore-Northern Erie-Southern Erie- Crawford- Including the cities of Lorain, Cleveland, Mentor, Chardon, Jefferson, Medina, Akron, Ravenna, Warren, Mansfield, Ashland, Wooster, Canton, Youngstown, Mount Gilead, Millersburg, Mount Vernon, Ashtabula, Erie, Edinboro, and Meadville 530 AM EDT Sun Mar 29 2020 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of Ohio and northwest Pennsylvania has been cancelled. Additional heavy rainfall and flooding is no longer expected across the area. However, flood warnings are in effect at this time. Be sure to monitor the latest statements concerning ongoing flooding. $$
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 Cleveland, OH wrote its last area forecast discussion before this flash flood watch went out at Mar 27, 10:46 AM EDT, 1 hour 21 minutes earlier.
Area forecast discussion, Mar 27, 10:46 AM EDT, 1 hour 21 minutes before
Area Forecast Discussion National Weather Service Cleveland OH 1046 AM EDT Fri Mar 27 2020 .SYNOPSIS... A ridge of high pressure will build east across the local area today. A warm front will lift north toward the area tonight and move north of the area Saturday night. Deep low pressure will move into the western Great Lakes by Sunday morning forcing a cold front east across the area Saturday night. As the low pressure system moves northeast of the area Sunday night, a trough will linger back across the local area. A ridge of high pressure extending south from northern Canada will build east across the area Monday night. Another low pressure system will move east across the Tennessee Valley through mid week extending a trough north across the local area. && .NEAR TERM /THROUGH SATURDAY/... Added in patchy fog for the southwest and southeast portions of our area this morning through noon as a stubborn inversion remains entrenched over much of the area this morning. Also added in heavy rain wording tonight, especially 2-8 am Saturday, and increased PoPs to categorical during this timeframe. Models are beginning to come into agreement of a line of heavy showers and thunderstorms which may backbuild and train in an area along US-30 and along and west of I-71. Expectation is for a Flash Flood Watch to be issued later this morning/afternoon in this area. A weak upper level shortwave trough and associated positive vorticity maximum continues to move east of the area at this time. This feature along with a surface cold front resulted in some rain activity overnight but the bulk of that activity is now east of the local area. This trend will continue through the morning hours and drier air will move into the region with the weak surface ridging. Our next weather maker is already showing up on radar across Missouri and Illinois at this time. An area of showers and thunderstorms were moving east along a stationary front that will eventually become a warm front later today. The warm front is progged to move north toward the area by Saturday. The models show differing solutions on the tracking of the warm front. The GFS is the most pessimistic while the European is the most aggressive in forward motion. The rest of the models are in between. Leaned in the direction of the European this morning as nose of the mid level jet surges northeast Saturday evening suggesting warm front will become progressive after this forecast period. In the interim, the warm front appears that it will stall for about a 6 hour period beginning late Saturday afternoon just south of the lake. There is uncertainty on where axis of the heavier rain will occur so after coordination with surrounding offices, will hold off on issuing any flood watch at this time. However, even though beyond this period, as convection develops, can't rule out some heavy rainers that could produce some localized flooding; especially in the northern tier counties. In the mean time, after passage of weak cold front this morning, temperatures will be cooler today than yesterday. Fair weather will return under the influence of the high pressure ridge. Showers will begin to spread into the southwest portions of the area tonight and much of the area by morning in advance of the warm front. Showers and a few embedded thunderstorms expected Saturday as the warm front approaches. There is the possibility for severe thunderstorms along the warm front by late Saturday afternoon into the evening. Temperatures will take a dip tonight and then surge well into the 60s Saturday over much of the area. Exception is the extreme northeast in northwest Pennsylvania where temperatures will remain in the lower 50s for highs tomorrow. && .SHORT TERM /SATURDAY NIGHT THROUGH MONDAY NIGHT/... Atmospheric parameters in the high-res forecast models are starting to be a little more robust and concerning for severe weather across northern Ohio into northwest Pennsylvania Saturday evening through early Sunday morning. There will be two time areas and time frame to be watching for the threat of severe weather across the area. A warm front will be slowly lifting northward across northern Ohio Saturday evening. Models indicate this frontal boundary may slow down or briefly stall near the lakeshore Saturday evening before it gets push northward across Lake Erie. Saturday evening and night convection will need to be monitored because dewpoints will be in the low 60s pooling along and south of that frontal boundary. Helicity values will be 300 to 400 which is plenty high. Most unstable CAPE values will be approaching 1000 to 1200 J/KG. Forecast model Low level CAPE 0-1km values may be around 200 to 400 J/KG. 0-6km Bulk shear values will be on the order of 60 to 75 knots which very high shear. Any convection along this warm front as it moves northward may have a large hail and isolated tornado threat Saturday evening into Saturday night. As we look later Saturday night into early Sunday morning, we will be watching severe storms move across the Ohio Valley from the west into Ohio after midnight. These storms will continue to feed off an unstable warm sector late into the night with a damaging wind, large hail, and isolated tornado threat. We expect a broken lines of storms with a couple discreet cells possible in the broken line late in the night. We agree with the SPC day 2 outlook regarding the a slight risk for severe storms. Any training of heavier convection over saturated ground may add to a localized flash flooding threat as well. The cold front will move through early Sunday morning with our max temperatures in the middle to upper 60s occurring early in the morning. Temperatures will fall during the day on Sunday along with gusty southwest to westerly winds 25 to 40 mph. We may get close to wind advisory criteria for some areas of northwest Ohio. The strong low pressure system will move across Ontario and Quebec Sunday night into Monday morning. Wrap around clouds and occasional scattered rain showers will be possible Sunday night into Monday with temperatures in the 40s and blustery. && .LONG TERM /TUESDAY THROUGH THURSDAY/... High pressure north of the Great Lakes region will ridge down across the eastern Great Lakes Monday night into Tuesday. But a northeasterly flow off the lake will continue to bring lake effect clouds. We don't expect to clear out of the clouds before the next system impacts the area late Tuesday. Another stout upper level wave will move across the Ohio Valley late Tuesday into Wednesday. A surface low pressure system will also develop in the lower Ohio Valley and move towards Upstate New York by early Thursday. It will remain cool, wet with off and on rain showers and blustery for the middle of next week. && .AVIATION /12Z Friday THROUGH Tuesday/... Some lingering lower clouds and fog will persist into the day today and then gradually improve by this afternoon. A warm front will begin to push north toward the local area tonight and bring with it more rain and lowering ceilings; especially in the southwest portions of the forecast area early tonight and the entire forecast area overnight tonight. Winds will generally be light through the period but begin to increase toward the end of the period at Erie. .OUTLOOK...Non-VFR conditions possible through Sunday in intermittent periods of rain and scattered thunderstorms. && .MARINE... Weak high pressure north of the Great Lakes today will continue a light northeast surface flow 5 to 10 knots. A frontal boundary across the Ohio Valley will sharpen up and slowly move northward as a warm front late tonight into Saturday. The northeast to easterly surface flow over the lake will also increase due to the pressure gradient. Waves will increase due to easterly winds increasing 15 to 20 knots late tonight into Saturday. SCA may be needed by late tonight through the weekend. We will also be concern about the extended time of the easterly flow piling water on the western basin of the lake and possible some minor lakeshore flooding. That will an something to monitor tonight into Saturday. The warm front will move across the lake late Saturday with a change to southerly and southwesterly winds increase 20 to 25 knots late Saturday and Saturday night. A cold front will move across the lake early Sunday morning with a strong area of low pressure moving across Ontario and Quebec by Sunday. Southwest to westerly winds will increase 20 to 30 knots with gusts likely up to 40 knots. High end SCA conditions will continua on Sunday with possible low end Gales during the day Sunday. The low moves away from the region on Monday with north to northwest winds relaxing down to around 10 to 15 knots. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && SYNOPSIS...Lombardy NEAR TERM...Kahn/Lombardy SHORT TERM...Griffin LONG TERM...Griffin AVIATION...Lombardy MARINE...Griffin
Hazardous weather outlook, Mar 27, 4:19 AM EDT, 7 hours 48 minutes before
Hazardous Weather Outlook National Weather Service Cleveland OH 419 AM EDT Fri Mar 27 2020 OHZ003-006>014-017>023-027>033-036>038-047-089-PAZ001>003-280830- Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga- Ashtabula Inland-Hancock-Seneca-Huron-Medina-Summit-Portage-Trumbull- Wyandot-Crawford-Richland-Ashland-Wayne-Stark-Mahoning-Marion-Morrow- Holmes-Knox-Ashtabula Lakeshore-Northern Erie-Southern Erie- 419 AM EDT Fri Mar 27 2020 This Hazardous Weather Outlook is for north central Ohio, northeast Ohio, northwest Ohio and northwest Pennsylvania. .DAY ONE...Today and tonight. Rain, heavy at times, and embedded thunderstorms are likely at times Friday evening through Saturday night. With rainfall of 1 to 2 inches, and locally higher amounts, some flooding will be possible. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. There will be a marginal risk for isolated severe thunderstorms late tonight into Saturday morning with large hail as the main threat. The severe weather threat will increase to a slight risk Saturday evening into early Sunday morning with a threat for damaging winds, large hail, and an isolated tornado possible. Localized heavy rainfall and isolated flash flooding may also be possible Saturday and Saturday night. Strong gusty southwest to westerly winds between 35 and 45 mph will be possible on Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed Saturday night. LEZ061-142>149-162>169-280830- Lake Erie open waters from Ripley to Buffalo NY- Lake Erie nearshore waters from Maumee Bay to Reno Beach OH- Lake Erie nearshore waters from Reno Beach to The Islands OH- Lake Erie nearshore waters from The Islands to Vermilion OH- Lake Erie nearshore waters from Vermilion to Avon Point OH- Lake Erie nearshore waters from Avon Point to Willowick OH- Lake Erie nearshore waters from Willowick to Geneva-on-the Lake OH- Lake Erie nearshore waters from Geneva-on-the-Lake to Conneaut OH- Lake Erie nearshore waters from Conneaut OH to Ripley NY- Lake Erie open waters from Maumee Bay to Reno Beach OH- Lake Erie open waters from Reno Beach to The Islands OH- Lake Erie open waters from The Islands to Vermilion OH- Lake Erie open waters from Vermilion to Avon Point OH- Lake Erie open waters from Avon Point to Willowick OH- Lake Erie open waters from Willowick to Geneva-on-the-Lake OH- Lake Erie open waters from Geneva-on-the-Lake to Conneaut OH- Lake Erie open waters from Conneaut OH to Ripley NY- 419 AM EDT Fri Mar 27 2020 This Hazardous Weather Outlook is for central Lake Erie, eastern Lake Erie and western Lake Erie. .DAY ONE...Today and tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. A persistent easterly surface flow late tonight into Saturday may cause water levels to rise and minor lakeshore flooding on the western basin of the lake this weekend. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Nearby
Flash Flood Watches in Ohio, 2020Flash Flood Watches in Pennsylvania, 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.