Alert archive / Tennessee / River Flood Warnings in 2017

River Flood Warning 12, NWS Morristown, TN

April 23, 2017Cocke County, Tennessee

NWS Morristown, TN issued this river flood warning at Apr 23, 2017, 10:50 PM EDT for Cocke County, Tennessee. It took effect at Apr 23, 2017, 11:23 PM EDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Apr 23, 2017, 10:50 PM EDT (02:50 UTC)
In effect from: Apr 23, 2017, 11:23 PM EDT
Expired: Apr 24, 2017, 5:51 PM EDT
In force: 18 hr
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Flood severity: Minor

County Cocke County, TN

The radar

The Knoxville radar (KMRX), 37 km from the middle of the area, began a volume at 02:52 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 Pigeon River at Newport (NEPT1). The gauge peaked at 9.57 ft at Apr 24, 2017, 6:00 AM EDT.

Action stage: 6 ft
Minor stage: 8 ft
Moderate stage: 10 ft
Major stage: 12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03461500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this river flood warning went out at Apr 23, 9:25 PM EDT, 1 hour 25 minutes earlier.

Area forecast discussion, Apr 23, 9:25 PM EDT, 1 hour 25 minutes before

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Hazardous weather outlook, Apr 23, 9:08 PM EDT, 1 hour 42 minutes before

Hazardous Weather Outlook
National Weather Service Morristown TN
908 PM EDT Sun Apr 23 2017

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-250115-
Cherokee-Clay-Scott TN-Campbell-Claiborne-Hancock-Hawkins-
Sullivan-Johnson-Morgan-Anderson-Union-Grainger-Hamblen-
Northwest Cocke-Cocke Smoky Mountains-Northwest Greene-
Southeast Greene-Washington TN-Unicoi-Northwest Carter-
Southeast Carter-Roane-Loudon-Knox-Jefferson-NW Blount-
Blount Smoky Mountains-North Sevier-Sevier Smoky Mountains-
Sequatchie-Bledsoe-Rhea-Meigs-McMinn-Northwest Monroe-
Southeast Monroe-Marion-Hamilton-Bradley-West Polk-East Polk-Lee-
Wise-Scott-Russell-Washington-
908 PM EDT Sun Apr 23 2017 /808 PM CDT Sun Apr 23 2017/

This Hazardous Weather Outlook is for portions of Southwest North
Carolina...East Tennessee and Southwest Virginia.

.DAY ONE...Tonight

...Locally Heavy Rainfall and Flash Flooding Remains Likely Tonight...

Widespread heavy rainfall and resultant flooding impacts continue
across all of East Tennessee, Southwest Virginia and far
Southwest North Carolina.

The persistent rainfall is falling on already saturated ground.
The additional heavy rains will lead to flooding of roadways, poor
drainage areas, low lying areas and small rivers and streams
across the region through Monday morning. Mud slides are
possible, especially across the burn scar areas of Sevier County,
Tennessee and other areas that have seen very heavy rain.
Additionally, saturated soils are resulting in isolated fallen
trees across the forecast area.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No Hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

In the hours before

Local storm report, Apr 23, 6:43 PM EDT, 4 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
643 PM EDT SUN APR 23 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0635 PM     FLOOD            NORRIS                  36.21N 84.06W
04/23/2017                   ANDERSON           TN   BROADCAST MEDIA

            NUMEROUS COUNTIES HAVE CLOSED SCHOOL TOMORROW ACROSS THE
            FORECAST AREA DUE TO FLOODED ROADWAYS. SOME COUNTIES HAVE
            REPORTED MUDSLIDES AND ROCKSLIDES WHILE OTHER COUNTIES
            ARE DEALING WITH DOWNED TREES DUE TO OVERLY SATURATED
            SOILS. IN ADDITION, THERE HAVE ALSO BEEN REPORTS OF
            ROADWAYS BEING WASHED OUT IN A FEW AREAS.

&&

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 23, 9:10 PM EDT	River Flood Warning	MRX	Hancock	19 hr
Apr 23, 9:10 PM EDT	River Flood Warning	MRX	Bledsoe, Marion, Sequatchie	48 hr
Apr 24, 12:13 AM EDT	Areal Flood Warning	MRX	Loudon, McMinn, Meigs, Monroe, Rhea, Roane	6 hr
Apr 24, 4:37 AM EDT	River Flood Warning	MRX	Hamilton	9 hr
Apr 24, 9:22 AM EDT	Areal Flood Warning	MRX	Anderson, Campbell, Carter, Claiborne, Grainger, Greene and 9 more	6 hr
Apr 24, 3:12 PM EDT	Areal Flood Warning	MRX	Hancock, Hawkins, Scott, Sullivan	6 hr

Nearby

River Flood Warnings in Tennessee, 2017 Every river flood warning in 2017

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.