Alert archive / Connecticut / River Flood Warnings in 2021

River Flood Warning 7, NWS Albany, NY

July 18, 2021Greater Bridgeport Planning Region, Naugatuck Valley Planning Region, Connecticut

NWS Albany, NY issued this river flood warning at Jul 18, 2021, 8:16 AM EDT for Greater Bridgeport Planning Region, Naugatuck Valley Planning Region, Connecticut. It took effect at Jul 18, 2021, 8:39 AM EDT. It was in force for 25 hr.

The area

The outline as issued.

The facts

Issued: Jul 18, 2021, 8:16 AM EDT (12:16 UTC)
In effect from: Jul 18, 2021, 8:39 AM EDT
Expired: Jul 19, 2021, 10:00 AM EDT
In force: 25 hr
Issued by: NWS Albany, NY
Area: Storm-based polygon
Flood severity: Minor

Counties Greater Bridgeport Planning Region, CT, Naugatuck Valley Planning Region, CT

The radar

The Brookhaven radar (KOKX), 63 km from the middle of the area, began a volume at 12:16 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 river

Written for the forecast point Housatonic River at Stevenson (STVC3). The gauge peaked at 10.96 ft at Jul 18, 2021, 8:00 AM EDT.

Action stage: 8 ft
Minor stage: 11 ft
Moderate stage: 15 ft
Major stage: 20 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01205500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

894 
WGUS41 KALY 181216
FLWALY

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Albany NY
816 AM EDT Sun Jul 18 2021


CTC001-009-190030-
/O.NEW.KALY.FL.W.0007.210718T1239Z-210719T1400Z/
/STVC3.1.ER.210718T1239Z.210718T1800Z.210719T0800Z.NO/
816 AM EDT Sun Jul 18 2021

The National Weather Service in Albany has issued a

* Flood Warning for
  the Housatonic River At Stevenson Dam.
* Until late tomorrow morning.
* At 7:46 AM EDT Sunday the stage was 11.0 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...The river will rise to 11.3 feet this afternoon. It 
  will then fall and hover just below flood stage late tonight 
  through tomorrow.
* Impact...At 11.5 feet, Water reaches the Maples area of Shelton.
* Flood History...This crest compares to a previous crest of 11.2 
  feet on 03/29/1994.

&&


Housatonic River
Stevenson Dam
Flood Stage: 11.0
Observed Stage at Sun 7 am: 11.0
Forecast:
Sun 8 am MSG
Sun 2 pm 11.3
Sun 8 pm 11.1
Mon 2 am 11.1
Mon 8 am 10.8
Mon 2 pm 10.8
Mon 8 pm 10.9
Tue 2 am 10.3
Tue 8 am 10.3
Tue 2 pm 10.3
Tue 8 pm 10.3
Wed 2 am 8.7




&&

LAT...LON 4138 7304 4127 7315 4139 7335 4151 7326

$$

Rathbun

4 follow-up statements

280 
WGUS81 KALY 181555
FLSALY

Flood Statement
National Weather Service Albany NY
1155 AM EDT Sun Jul 18 2021


CTC001-009-190400-
/O.EXT.KALY.FL.W.0007.000000T0000Z-210719T1200Z/
/STVC3.1.ER.210718T1800Z.210718T1800Z.210719T0600Z.NO/
1155 AM EDT Sun Jul 18 2021

...The Flood Warning is now in effect until tomorrow morning...

The Flood Warning continues for
  the Housatonic River At Stevenson Dam.
* Until tomorrow morning.
* At 11:30 AM EDT Sunday the stage was 10.8 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to flood stage this 
  afternoon to a crest of 11.0 feet this afternoon. It will then 
  fall below flood stage just after midnight tonight.
* Impact...At 11.0 feet, Flood stage.
* Flood History...This crest compares to a previous crest of 11.0 
  feet on 01/13/2018.

&&


Housatonic River
Stevenson Dam
Flood Stage: 11.0
Observed Stage at Sun 11 am: 10.8
Forecast:
Sun 2 pm 11.0
Sun 8 pm 11.0
Mon 2 am 11.0
Mon 8 am 10.3
Mon 2 pm 10.4
Mon 8 pm 10.4
Tue 2 am 10.3
Tue 8 am 8.9
Tue 2 pm 8.7
Tue 8 pm 8.7
Wed 2 am 8.7
Wed 8 am 8.7




&&

LAT...LON 4138 7304 4127 7315 4139 7335 4151 7326

$$

CTC005-190400-
/O.EXT.KALY.FL.W.0006.000000T0000Z-210721T0600Z/
/FLVC3.1.ER.210718T1355Z.210719T1200Z.210721T0000Z.NO/
1155 AM EDT Sun Jul 18 2021

...The Flood Warning is now in effect until early Wednesday 
morning...

The Flood Warning continues for
  the Housatonic River At Falls Village.
* Until early Wednesday morning.
* At 11:15 AM EDT Sunday the stage was 7.0 feet.
* Flood stage is 7.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 11:15 AM EDT Sunday was 7.0 feet.
* Forecast...The river is expected to rise to a crest of 7.5 feet 
  tomorrow morning. It will then fall below flood stage Tuesday 
  night.
* Impact...At 7.0 feet, Flood stage. The park above Falls Village 
  Dam begins to flood, and water reaches the fields of White Hollow 
  Farms near Limerock Road, and is at the edge of the Housatonic 
  Valley Regional High School fields.
* Flood History...This crest compares to a previous crest of 7.5 
  feet on 02/18/1984.

&&


Housatonic River
Falls Village
Flood Stage: 7.0
Observed Stage at Sun 11 am: 7.0
Forecast:
Sun 2 pm 7.1
Sun 8 pm 7.2
Mon 2 am 7.3
Mon 8 am 7.5
Mon 2 pm 7.5
Mon 8 pm 7.5
Tue 2 am 7.5
Tue 8 am 7.3
Tue 2 pm 7.1
Tue 8 pm 7.0
Wed 2 am 6.8
Wed 8 am 6.6




&&

LAT...LON 4205 7344 4204 7327 4182 7326 4182 7344

$$

CTC005-190400-
/O.EXT.KALY.FL.W.0005.000000T0000Z-210720T1200Z/
/GAYC3.1.ER.210718T0705Z.210718T1101Z.210720T0600Z.NO/
1155 AM EDT Sun Jul 18 2021

...The Flood Warning is now in effect until Tuesday morning...

The Flood Warning continues for
  the Housatonic River At Gaylordsville.
* Until Tuesday morning.
* At 11:30 AM EDT Sunday the stage was 8.3 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 11:30 AM EDT Sunday was 8.4 feet.
* Forecast...The river is expected to fall below flood stage early 
  Tuesday morning and continue falling to 7.1 feet Wednesday morning.
* Impact...At 8.0 feet, Flood stage. Water reaches New Milford 
  Foundry and Youngfield Street.
* Flood History...This crest compares to a previous crest of 8.3 
  feet on 12/14/1983.

&&


Housatonic River
Gaylordsville
Flood Stage: 8.0
Observed Stage at Sun 11 am: 8.3
Forecast:
Sun 2 pm 8.2
Sun 8 pm 8.2
Mon 2 am 8.2
Mon 8 am 8.2
Mon 2 pm 8.2
Mon 8 pm 8.1
Tue 2 am 8.0
Tue 8 am 7.9
Tue 2 pm 7.7
Tue 8 pm 7.5
Wed 2 am 7.3
Wed 8 am 7.1




&&

LAT...LON 4169 7352 4170 7343 4153 7333 4152 7344

$$

Rathbun

713 
WGUS81 KALY 190144
FLSALY

Flood Statement
National Weather Service Albany NY
944 PM EDT Sun Jul 18 2021


CTC001-009-191200-
/O.CON.KALY.FL.W.0007.000000T0000Z-210719T1200Z/
/STVC3.1.ER.210720T0600Z.210720T0600Z.210720T0600Z.NO/
944 PM EDT Sun Jul 18 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Housatonic River At Stevenson Dam.
* Until tomorrow morning.
* At 9:30 PM EDT Sunday the stage was 9.9 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 11.0 feet 
  early Tuesday morning.
* Impact...At 11.0 feet, Flood stage.
* Flood History...This crest compares to a previous crest of 11.0 
  feet on 01/13/2018.

&&


Housatonic River
Stevenson Dam
Flood Stage: 11.0
Observed Stage at Sun 9 pm: 9.9
Forecast:
Sun 8 pm MSG
Mon 2 am 9.8
Mon 8 am 10.1
Mon 2 pm 10.7
Mon 8 pm 10.9
Tue 2 am 11.0
Tue 8 am 10.9
Tue 2 pm 10.3
Tue 8 pm 9.7
Wed 2 am 9.4
Wed 8 am 9.3
Wed 2 pm 9.1




&&

LAT...LON 4138 7304 4127 7315 4139 7335 4151 7326

$$

NAS

584 
WGUS81 KALY 191055
FLSALY

Flood Statement
National Weather Service Albany NY
655 AM EDT Mon Jul 19 2021


CTC001-009-192300-
/O.EXT.KALY.FL.W.0007.000000T0000Z-210720T1200Z/
/STVC3.1.ER.210720T0600Z.210720T0600Z.210720T0600Z.NO/
655 AM EDT Mon Jul 19 2021

...The Flood Warning is now in effect until tomorrow morning...

The Flood Warning continues for
  the Housatonic River At Stevenson Dam.
* Until tomorrow morning.
* At 6:30 AM EDT Monday the stage was 9.8 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 11.0 feet 
  just after midnight tonight.
* Impact...At 11.0 feet, Flood stage.
* Flood History...This crest compares to a previous crest of 11.0 
  feet on 01/13/2018.

&&


Housatonic River
Stevenson Dam
Flood Stage: 11.0
Observed Stage at Mon 6 am: 9.8
Forecast:
Mon 8 am 10.1
Mon 2 pm 10.7
Mon 8 pm 10.9
Tue 2 am 11.0
Tue 8 am 10.9
Tue 2 pm 10.3
Tue 8 pm 9.7
Wed 2 am 9.4
Wed 8 am 9.3
Wed 2 pm 9.1
Wed 8 pm 9.0




&&

LAT...LON 4138 7304 4127 7315 4139 7335 4151 7326

$$

JPV

302 
WGUS81 KALY 191230
FLSALY

Flood Statement
National Weather Service Albany NY
830 AM EDT Mon Jul 19 2021


CTC001-009-191330-
/O.CAN.KALY.FL.W.0007.000000T0000Z-210719T1230Z/
/STVC3.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
830 AM EDT Mon Jul 19 2021

...The Flood Warning for the Housatonic River At Stevenson Dam has 
been cancelled...

The Flood Warning is cancelled for
  the Housatonic River At Stevenson Dam.
* At 8:01 AM EDT Monday the stage was 9.5 feet.
* Flood stage is 11.0 feet.
* Forecast...The river is expected to rise to a crest of 9.4 feet 
  Wednesday morning.

&&


Housatonic River
Stevenson Dam
Flood Stage: 11.0
Observed Stage at Mon 8 am: 9.5
Forecast:
Mon 2 pm 8.6
Mon 8 pm 7.9
Tue 2 am 7.9
Tue 8 am 7.9
Tue 2 pm 7.9
Tue 8 pm 7.9
Wed 2 am 8.2
Wed 8 am 9.4
Wed 2 pm 9.4
Wed 8 pm 8.2
Thu 2 am 8.2




&&

LAT...LON 4138 7304 4127 7315 4139 7335 4151 7326

$$

CTC005-200030-
/O.EXT.KALY.FL.W.0006.000000T0000Z-210722T1500Z/
/FLVC3.1.ER.210718T1355Z.210720T1200Z.210722T0900Z.NO/
830 AM EDT Mon Jul 19 2021

...The Flood Warning is now in effect until late Thursday morning...

The Flood Warning continues for
  the Housatonic River At Falls Village.
* Until late Thursday morning.
* At 7:15 AM EDT Monday the stage was 7.3 feet.
* Flood stage is 7.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 7:15 AM EDT Monday was 7.3 feet.
* Forecast...The river is expected to rise to a crest of 8.6 feet 
  tomorrow morning. It will then fall below flood stage early 
  Thursday morning.
* Impact...At 9.0 feet, Water floods Riverside Road at Kent School 
  and begins to approach buildings. Water gets close to Route 7.

&&


Housatonic River
Falls Village
Flood Stage: 7.0
Observed Stage at Mon 7 am: 7.3
Forecast:
Mon 8 am MSG
Mon 2 pm 7.8
Mon 8 pm 8.2
Tue 2 am 8.5
Tue 8 am 8.6
Tue 2 pm 8.6
Tue 8 pm 8.5
Wed 2 am 8.3
Wed 8 am 8.0
Wed 2 pm 7.7
Wed 8 pm 7.4
Thu 2 am 7.1




&&

LAT...LON 4205 7344 4204 7327 4182 7326 4182 7344

$$

CTC005-200030-
/O.EXT.KALY.FL.W.0005.000000T0000Z-210721T2100Z/
/GAYC3.1.ER.210718T0705Z.210720T0600Z.210721T1500Z.NO/
830 AM EDT Mon Jul 19 2021

...The Flood Warning is now in effect until Wednesday afternoon...

The Flood Warning continues for
  the Housatonic River At Gaylordsville.
* Until Wednesday afternoon.
* At 8:00 AM EDT Monday the stage was 7.9 feet.
* Flood stage is 8.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this morning to a crest of 8.5 feet just after midnight tonight. 
  It will then fall below flood stage late Wednesday morning.
* Impact...At 8.0 feet, Flood stage. Water reaches New Milford 
  Foundry and Youngfield Street.

&&


Housatonic River
Gaylordsville
Flood Stage: 8.0
Observed Stage at Mon 8 am: 7.9
Forecast:
Mon 2 pm 8.3
Mon 8 pm 8.4
Tue 2 am 8.5
Tue 8 am 8.5
Tue 2 pm 8.5
Tue 8 pm 8.4
Wed 2 am 8.2
Wed 8 am 8.1
Wed 2 pm 7.9
Wed 8 pm 7.6
Thu 2 am 7.4




&&

LAT...LON 4169 7352 4170 7343 4153 7333 4152 7344

$$

DBT

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 17, 8:40 PM EDT	Severe Thunderstorm Warning	ALY	Northwest Hills Planning Region	65 min
Jul 17, 9:12 PM EDT	Areal Flood Advisory	ALY	Northwest Hills Planning Region	3 hr
Jul 17, 9:23 PM EDT	Special Weather Statement	ALY		37 min
Jul 17, 9:47 PM EDT	Special Weather Statement	ALY		28 min
Jul 17, 10:46 PM EDT	Flash Flood Warning	ALY	Northwest Hills Planning Region	2 hr
Jul 17, 11:33 PM EDT	River Flood Warning	ALY	Northwest Hills Planning Region	21 days
Jul 18, 12:28 AM EDT	Special Weather Statement	ALY		32 min
Jul 18, 1:02 AM EDT	Flash Flood Warning	ALY	Northwest Hills Planning Region	3 hr
Jul 18, 2:06 AM EDT	River Flood Warning	ALY	Northwest Hills Planning Region	4 days

Nearby

River Flood Warnings in Connecticut, 2021 Every river 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.