Alert archive / New York / Lakeshore Flood Warnings in 2021
Lakeshore Flood Warning 3, NWS Buffalo, NY
NWS Buffalo, NY issued this lakeshore flood warning at Dec 5, 2021, 3:34 AM EST for Jefferson County, Oswego County, New York. It took effect at Dec 6, 2021, 4:00 PM EST. It was in force for 12 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 5, 2021, 3:34 AM EST (08:34 UTC)
- In effect from
- Dec 6, 2021, 4:00 PM EST
- Expired
- Dec 7, 2021, 4:00 AM EST
- In force
- 12 hr
- Issued by
- NWS Buffalo, NY
Counties Jefferson County, NY, Oswego County, NY
The radar
The Ft Drum radar (KTYX), 36 km from the middle of the area, began a volume at 08:33 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 6, 7:12 PM EST | NON-TSTM WND GST 58 | 2 Sse Dexter, NY | ASOS STATION KART WATERTOWN AIRPORT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 8.6 hours before the alert went out and 226 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
- 4 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1232 m above ground
- 0-6 km bulk shear
- 104 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
015 WHUS41 KBUF 050834 CFWBUF URGENT - IMMEDIATE BROADCAST REQUESTED Lakeshore Hazard Message National Weather Service Buffalo NY 334 AM EST Sun Dec 5 2021 NYZ006-007-051700- /O.UPG.KBUF.LS.A.0003.211206T2100Z-211207T0900Z/ /O.NEW.KBUF.LS.W.0003.211206T2100Z-211207T0900Z/ Oswego-Jefferson- 334 AM EST Sun Dec 5 2021 ...LAKESHORE FLOOD WARNING IN EFFECT FROM 4 PM MONDAY TO 4 AM EST TUESDAY... * WHAT...Significant lakeshore flooding expected. * WHERE...Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of high lake levels and significant wave action will result in lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ019-085-051700- /O.NEW.KBUF.LS.Y.0003.211206T1500Z-211207T0000Z/ Chautauqua-Southern Erie- 334 AM EST Sun Dec 5 2021 ...LAKESHORE FLOOD ADVISORY IN EFFECT FROM 10 AM TO 7 PM EST MONDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Chautauqua and Southern Erie counties. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$ Apffel
10 follow-up statements
690 WHUS41 KBUF 050914 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 414 AM EST Sun Dec 5 2021 NYZ006-007-051700- /O.CON.KBUF.LS.W.0003.211206T2100Z-211207T0900Z/ Oswego-Jefferson- 414 AM EST Sun Dec 5 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT FROM 4 PM MONDAY TO 4 AM EST TUESDAY... * WHAT...Significant lakeshore flooding expected. * WHERE...Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of high lake levels and significant wave action will result in lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ010-051700- /O.EXA.KBUF.LS.Y.0003.211206T1500Z-211207T0000Z/ Northern Erie- 414 AM EST Sun Dec 5 2021 ...LAKESHORE FLOOD ADVISORY IN EFFECT FROM 10 AM TO 7 PM EST MONDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Northern Erie county. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$ NYZ019-085-051700- /O.CON.KBUF.LS.Y.0003.211206T1500Z-211207T0000Z/ Chautauqua-Southern Erie- 414 AM EST Sun Dec 5 2021 ...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM EST MONDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Chautauqua and Southern Erie counties. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$ Apffel
395 WHUS41 KBUF 051743 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 1243 PM EST Sun Dec 5 2021 NYZ006-007-060145- /O.CON.KBUF.LS.W.0003.211206T2100Z-211207T0900Z/ Oswego-Jefferson- 1243 PM EST Sun Dec 5 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT FROM 4 PM MONDAY TO 4 AM EST TUESDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of strong winds and significant wave action will result in minor lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ010-019-085-060145- /O.CON.KBUF.LS.Y.0003.211206T1500Z-211207T0000Z/ Northern Erie-Chautauqua-Southern Erie- 1243 PM EST Sun Dec 5 2021 ...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM EST MONDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Erie shore of Erie and Chautauqua counties. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. Spray from high waves and onshore wind may impact Route 5 in Hamburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$ Hitchcock
744 WHUS41 KBUF 052140 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 440 PM EST Sun Dec 5 2021 NYZ006-007-060600- /O.CON.KBUF.LS.W.0003.211206T2100Z-211207T0900Z/ Oswego-Jefferson- 440 PM EST Sun Dec 5 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT FROM 4 PM MONDAY TO 4 AM EST TUESDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of strong winds and significant wave action will result in minor lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ010-019-085-060600- /O.CON.KBUF.LS.Y.0003.211206T1500Z-211207T0000Z/ Northern Erie-Chautauqua-Southern Erie- 440 PM EST Sun Dec 5 2021 ...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM EST MONDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Erie shore of Erie and Chautauqua counties. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. Spray from high waves and onshore wind may impact Route 5 in Hamburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$
612 WHUS41 KBUF 060323 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 1023 PM EST Sun Dec 5 2021 NYZ006-007-061130- /O.CON.KBUF.LS.W.0003.211206T2100Z-211207T0900Z/ Oswego-Jefferson- 1023 PM EST Sun Dec 5 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT FROM 4 PM MONDAY TO 4 AM EST TUESDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of strong winds and significant wave action will result in minor lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ010-019-085-061130- /O.CON.KBUF.LS.Y.0003.211206T1500Z-211207T0000Z/ Northern Erie-Chautauqua-Southern Erie- 1023 PM EST Sun Dec 5 2021 ...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM EST MONDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Erie shore of Erie and Chautauqua counties. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. Spray from high waves and onshore wind may impact Route 5 in Hamburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$
114 WHUS41 KBUF 060747 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 247 AM EST Mon Dec 6 2021 NYZ006-007-061800- /O.CON.KBUF.LS.W.0003.211206T2100Z-211207T0900Z/ Oswego-Jefferson- 247 AM EST Mon Dec 6 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM EST TUESDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of strong winds and significant wave action will result in minor lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ010-019-085-061800- /O.CON.KBUF.LS.Y.0003.211206T1500Z-211207T0000Z/ Northern Erie-Chautauqua-Southern Erie- 247 AM EST Mon Dec 6 2021 ...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EST THIS EVENING... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Erie shore of Erie and Chautauqua counties. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. Spray from high waves and onshore wind may impact Route 5 in Hamburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$ Apffel
775 WHUS41 KBUF 061517 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 1017 AM EST Mon Dec 6 2021 NYZ006-007-070000- /O.CON.KBUF.LS.W.0003.211206T2100Z-211207T0900Z/ Oswego-Jefferson- 1017 AM EST Mon Dec 6 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM EST TUESDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of strong winds and significant wave action will result in minor lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ010-019-085-070000- /O.CON.KBUF.LS.Y.0003.000000T0000Z-211207T0000Z/ Northern Erie-Chautauqua-Southern Erie- 1017 AM EST Mon Dec 6 2021 ...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Erie shore of Erie and Chautauqua counties. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. Spray from high waves and onshore wind may impact Route 5 in Hamburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$
646 WHUS41 KBUF 061947 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 247 PM EST Mon Dec 6 2021 NYZ006-007-070400- /O.CON.KBUF.LS.W.0003.211206T2100Z-211207T0900Z/ Oswego-Jefferson- 247 PM EST Mon Dec 6 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT UNTIL 4 AM EST TUESDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of strong winds and significant wave action will result in minor lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ010-019-085-070000- /O.CON.KBUF.LS.Y.0003.000000T0000Z-211207T0000Z/ Northern Erie-Chautauqua-Southern Erie- 247 PM EST Mon Dec 6 2021 ...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Erie shore of Erie and Chautauqua counties. * WHEN...From 10 AM to 7 PM EST Monday. * IMPACTS...Some water on low lying roads and property along the lakeshore. Spray from high waves and onshore wind may impact Route 5 in Hamburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$
271 WHUS41 KBUF 062258 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 558 PM EST Mon Dec 6 2021 NYZ006-007-070700- /O.CON.KBUF.LS.W.0003.000000T0000Z-211207T0900Z/ Oswego-Jefferson- 558 PM EST Mon Dec 6 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT UNTIL 4 AM EST TUESDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of strong winds and significant wave action will result in minor lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ NYZ010-019-085-070300- /O.EXT.KBUF.LS.Y.0003.000000T0000Z-211207T0300Z/ Northern Erie-Chautauqua-Southern Erie- 558 PM EST Mon Dec 6 2021 ...LAKESHORE FLOOD ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Erie shore of Erie and Chautauqua counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Some water on low lying roads and property along the lakeshore. Spray from high waves and onshore wind may impact Route 5 in Hamburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... Residents on or near the shore should take appropriate action to protect property from rising water levels. && $$ Hitchcock
543 WHUS41 KBUF 070302 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 1002 PM EST Mon Dec 6 2021 NYZ010-019-085-070415- /O.EXP.KBUF.LS.Y.0003.000000T0000Z-211207T0300Z/ Northern Erie-Chautauqua-Southern Erie- 1002 PM EST Mon Dec 6 2021 ...LAKESHORE FLOOD ADVISORY HAS EXPIRED... The water level on Lake Erie will continue to drop overnight as winds diminish. $$ NYZ006-007-070900- /O.CON.KBUF.LS.W.0003.000000T0000Z-211207T0900Z/ Oswego-Jefferson- 1002 PM EST Mon Dec 6 2021 ...LAKESHORE FLOOD WARNING REMAINS IN EFFECT UNTIL 4 AM EST TUESDAY... * WHAT...Minor lakeshore flooding expected. * WHERE...Lake Ontario shore of Oswego and Jefferson counties. * WHEN...From 4 PM Monday to 4 AM EST Tuesday. * IMPACTS...The combination of strong winds and significant wave action will result in minor lakeshore flooding along the immediate lakeshore, especially in bays, inlets, harbors, and other low lying areas along the shoreline. Shoreline erosion is also expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Lakeshore Flood Warning means lakeshore flooding is occurring, is imminent, or is expected to occur. For your safety, stay off breakwaters, piers, rock outcroppings and beaches! Waves are often larger than they appear and can easily wash you away. Expect significant beach erosion and debris, local road closures and extremely dangerous boating conditions. && $$ Hitchcock
882 WHUS41 KBUF 070905 CFWBUF Lakeshore Hazard Message National Weather Service Buffalo NY 405 AM EST Tue Dec 7 2021 NYZ006-007-071015- /O.EXP.KBUF.LS.W.0003.000000T0000Z-211207T0900Z/ Oswego-Jefferson- 405 AM EST Tue Dec 7 2021 ...LAKESHORE FLOOD WARNING HAS EXPIRED... The water level on Lake Ontario will continue to drop this morning as winds diminish. $$ TMA
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 5, 3:33 AM EST | High Wind Warning | BUF | Chautauqua, Erie, Jefferson, Lewis, Ontario | 45 hr |
| Dec 5, 3:33 AM EST | Wind Advisory | BUF | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 9 more | 45 hr |
| Dec 5, 3:34 AM EST | Lakeshore Flood Advisory | BUF | Chautauqua, Erie | 42 hr |
| Dec 5, 3:36 AM EST | Gale Warning | BUF | 48 hr | |
| Dec 5, 12:41 PM EST | Small Craft Advisory | BUF | 53 hr |
Nearby
Lakeshore Flood Warnings in New York, 2021Every lakeshore flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.