Alert archive / North Carolina / River Flood Warnings in 2018

River Flood Warning 35, NWS Raleigh, NC

November 12, 2018Alamance County, North Carolina

NWS Raleigh, NC issued this river flood warning at Nov 12, 2018, 9:47 PM EST for Alamance County, North Carolina. It took effect at Nov 13, 2018, 1:36 AM EST. It was in force for 33 hr.

The area

The outline as issued.

The facts

Issued
Nov 12, 2018, 9:47 PM EST (02:47 UTC)
In effect from
Nov 13, 2018, 1:36 AM EST
Expired
Nov 14, 2018, 10:24 AM EST
In force
33 hr
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Flood severity
Minor

County Alamance County, NC

The radar

The Raleigh/Durham radar (KRAX), 95 km from the middle of the area, began a volume at 02:46 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 Haw River at Haw River (HAWN7). The gauge peaked at 25.62 ft at Nov 13, 2018, 9:00 AM EST.

actionminormoderatemajor102011/1311/1411/15
Action stage
16 ft
Minor stage
18 ft
Moderate stage
23 ft
Major stage
27 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02096500, 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.

076 
WGUS42 KRAH 130247
FLWRAH


BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Raleigh, NC
947 PM EST Mon Nov 12 2018



...The National Weather Service in Raleigh has issued a
Flood Warning for the following rivers in North Carolina...

  Haw River At Haw River affecting Alamance County
  Haw River Near Bynum affecting Chatham County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message. If you encounter deep water while driving, do not 
attempt to drive through. Turn around, dont drown.

&&

NCC001-131446-
/O.NEW.KRAH.FL.W.0035.181113T0636Z-181114T2200Z/
/HAWN7.1.ER.181113T0636Z.181113T1800Z.181114T1000Z.NO/
947 PM EST Mon Nov 12 2018

The National Weather Service in Raleigh has issued a 

* Flood Warning for 
  The Haw River At Haw River.
* from late tonight to Wednesday afternoon, or until the warning is 
  cancelled.
* At  9:30 PM Monday the stage was 14.0 feet.
* Flood stage is 18.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage by
  early Tuesday morning and continue to rise to near 22.4 feet by 
  Tuesday early afternoon. The river will fall below flood stage by 
  Wednesday morning.
* Impact...At 23.0 feet, Moderate flood stage. Flooding reaches the 
  base of the water treatment plant building.

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Tue   Wed   Thu   Fri   Sat

Haw River
 Haw River        18  14.0 Mon 09 PM   21.5  17.0  11.3   8.6   6.8      


&&

LAT...LON 3624 7953 3613 7934 3590 7918 3585 7930
          3604 7944 3613 7954         

$$

NCC037-131446-
/O.NEW.KRAH.FL.W.0036.181113T0848Z-181115T1440Z/
/BYNN7.1.ER.181113T0848Z.181114T0000Z.181115T0240Z.NO/
947 PM EST Mon Nov 12 2018

The National Weather Service in Raleigh has issued a 

* Flood Warning for 
  The Haw River Near Bynum.
* from late tonight to Thursday morning, or until the warning is 
  cancelled.
* At  9:31 PM Monday the stage was 8.3 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage by early
  Tuesday morning and continue to rise to near 14.7 feet by Tuesday
  evening.The river will fall below flood stage by Wednesday before 
  midnight.
* Impact...At 15.0 feet, The river widens up to 800 feet across, but 
  flooding remains confined to extensive stretches of woods and 
  pastureland along the river.

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Tue   Wed   Thu   Fri   Sat

Haw River
 Bynum            11   8.3 Mon 10 PM   12.6  13.1   9.9   7.9   6.8      


&&

LAT...LON 3590 7918 3582 7911 3576 7905 3569 7916
          3585 7930                   

$$
7 follow-up statements
212 
WGUS42 KRAH 130705
FLWRAH


BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Raleigh, NC
205 AM EST Tue Nov 13 2018



...Forecast flooding changed from Minor to Moderate severity for the 
following rivers in North Carolina...
  Haw River At Haw River affecting Alamance County
 ...Insert basis for warning (if desired) here...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message. If you encounter deep water while driving, do not 
attempt to drive through. Turn around, dont drown.

&&

NCC001-131905-
/O.EXT.KRAH.FL.W.0035.000000T0000Z-181114T2048Z/
/HAWN7.2.ER.181113T0409Z.181113T1800Z.181114T0848Z.NO/
205 AM EST Tue Nov 13 2018

...Observed flooding increased from Minor to Moderate severity...
...Forecast flooding increased from Minor to Moderate severity...
The Flood Warning continues for 
 The Haw River At Haw River.* At  1:46 AM Tuesday the stage was 23.6 feet.
* Flood stage is 18.0 feet.
* Moderate flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue rising to near 24.0 feet by this
  afternoon. The river will fall below flood stage early tomorrow.
* Impact...At 23.0 feet, Moderate flood stage. Flooding reaches the 
  base of the water treatment plant building.

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.

                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Tue   Wed   Thu   Fri   Sat

Haw River
 Haw River        18  23.6 Tue 02 AM   23.5  16.4  11.3   8.6   6.8      

&&

LAT...LON 3624 7953 3613 7934 3590 7918 3585 7930
          3604 7944 3613 7954         

$$
551 
WGUS82 KRAH 131405
FLSRAH


Flood Statement 
National Weather Service Raleigh, NC
905 AM EST Tue Nov 13 2018

...The Flood Warning continues for the following rivers in North 
Carolina...

  Haw River At Haw River affecting Alamance County

  Haw River Near Bynum affecting Chatham County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message. If you encounter deep water while driving, do not 
attempt to drive through. Turn around, dont drown.

&&

NCC001-140205-
/O.EXT.KRAH.FL.W.0035.000000T0000Z-181114T2312Z/
/HAWN7.2.ER.181113T0409Z.181113T1800Z.181114T1112Z.NO/
905 AM EST Tue Nov 13 2018

The Flood Warning continues for
  the Haw River At Haw River.
* At  8:46 AM Tuesday the stage was 25.6 feet.
* Flood stage is 18.0 feet.
* Moderate flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue rising to near 26.3 feet by this
  afternoon. The river will fall below flood stage tomorrow morning.
* Impact...At 26.0 feet, Trailer homes adjacent to the river and the 
  water treatment plant flood. Evacuations may be necessary.
* Impact...At 25.5 feet, The water treatment plant building floods.
* Impact...At 23.0 feet, Moderate flood stage. Flooding reaches the 
  base of the water treatment plant building.
* Impact...At 20.0 feet, There is significant overflow on the right 
  bank opposite the water treatment plant.
* Impact...At 18.0 feet, Overflow begins on both banks at the water 
  treatment plant. 

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Wed   Thu   Fri   Sat   Sun

Haw River
 Haw River        18  25.6 Tue 09 AM  17.4  12.5  13.0   9.8   7.7


&&

LAT...LON 3624 7953 3613 7934 3590 7918 3585 7930
          3604 7944 3613 7954         

$$

NCC037-140205-
/O.EXT.KRAH.FL.W.0036.000000T0000Z-181115T0720Z/
/BYNN7.3.ER.181113T0421Z.181113T1800Z.181114T1920Z.NO/
905 AM EST Tue Nov 13 2018

The Flood Warning continues for
  the Haw River Near Bynum.
* At  8:45 AM Tuesday the stage was 17.5 feet.
* Flood stage is 11.0 feet.
* Major flooding is occurring and Major flooding is forecast.
* Forecast...The river will continue rising to near 18.2 feet by this
  afternoon. The river will fall below flood stage tomorrow early 
  afternoon.
* Impact...At 17.0 feet, Major flood stage. Several homes along the 
  right bank of the river are flooded.
* Impact...At 15.0 feet, The river widens up to 800 feet across, but 
  flooding remains confined to extensive stretches of woods and 
  pastureland along the river.
* Impact...At 11.0 feet, The river widens up to 400 feet across. It 
  floods pasturelands on the right bank and woodlands on the left.


&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Wed   Thu   Fri   Sat   Sun

Haw River
 Bynum            11  17.5 Tue 09 AM  12.8   9.6   9.4   8.7   7.7


&&

LAT...LON 3590 7918 3582 7911 3576 7905 3569 7916
          3585 7930                   

$$
539 
WGUS82 KRAH 132050
FLSRAH


Flood Statement 
National Weather Service Raleigh, NC
350 PM EST Tue Nov 13 2018

...The Flood Warning continues for the following rivers in North 
Carolina...

  Haw River At Haw River affecting Alamance County

  Haw River Near Bynum affecting Chatham County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message. If you encounter deep water while driving, do not 
attempt to drive through. Turn around, dont drown.

&&

NCC001-140849-
/O.EXT.KRAH.FL.W.0035.000000T0000Z-181114T1551Z/
/HAWN7.2.ER.181113T0409Z.181113T1401Z.181114T0351Z.NO/
350 PM EST Tue Nov 13 2018

The Flood Warning continues for
  the Haw River At Haw River.
* At  3:31 PM Tuesday the stage was 23.0 feet.
* Flood stage is 18.0 feet.
* Moderate flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by 
  tonight.
* Impact...At 23.0 feet, Moderate flood stage. Flooding reaches the 
  base of the water treatment plant building.
* Impact...At 20.0 feet, There is significant overflow on the right 
  bank opposite the water treatment plant.
* Impact...At 18.0 feet, Overflow begins on both banks at the water 
  treatment plant. 


&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Wed   Thu   Fri   Sat   Sun

Haw River
 Haw River        18  23.0 Tue 04 PM  13.7  11.3  14.4  10.9   8.4


&&

LAT...LON 3624 7953 3613 7934 3590 7918 3585 7930
          3604 7944 3613 7954         

$$

NCC037-140849-
/O.EXT.KRAH.FL.W.0036.000000T0000Z-181115T0218Z/
/BYNN7.3.ER.181113T0421Z.181113T1801Z.181114T1418Z.NO/
350 PM EST Tue Nov 13 2018

The Flood Warning continues for
  the Haw River Near Bynum.
* At  3:30 PM Tuesday the stage was 17.6 feet.
* Flood stage is 11.0 feet.
* Major flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by 
  tomorrow late morning.
* Impact...At 17.0 feet, Major flood stage. Several homes along the 
  right bank of the river are flooded.
* Impact...At 15.0 feet, The river widens up to 800 feet across, but 
  flooding remains confined to extensive stretches of woods and 
  pastureland along the river.
* Impact...At 11.0 feet, The river widens up to 400 feet across. It 
  floods pasturelands on the right bank and woodlands on the left.


&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Wed   Thu   Fri   Sat   Sun

Haw River
 Bynum            11  17.6 Tue 03 PM  11.5   9.0  10.2   9.3   8.0


&&

LAT...LON 3590 7918 3582 7911 3576 7905 3569 7916
          3585 7930                   

$$
597 
WGUS82 KRAH 140310
FLSRAH


Flood Statement 
National Weather Service Raleigh, NC
1010 PM EST Tue Nov 13 2018

...The Flood Warning continues for the following rivers in North 
Carolina...

  Haw River At Haw River affecting Alamance County

  Haw River Near Bynum affecting Chatham County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message. If you encounter deep water while driving, do not 
attempt to drive through. Turn around, dont drown.

&&

NCC001-141511-
/O.EXT.KRAH.FL.W.0035.000000T0000Z-181114T1956Z/
/HAWN7.2.ER.181113T0409Z.181113T1401Z.181114T0756Z.NO/
1010 PM EST Tue Nov 13 2018

The Flood Warning continues for
  the Haw River At Haw River.
* At  9:46 PM Tuesday the stage was 21.0 feet.
* Flood stage is 18.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by 
  after midnight tomorrow.
* Impact...At 20.0 feet, There is significant overflow on the right 
  bank opposite the water treatment plant.
* Impact...At 18.0 feet, Overflow begins on both banks at the water 
  treatment plant. 

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Wed   Thu   Fri   Sat   Sun

Haw River
 Haw River        18  21.0 Tue 10 PM  11.4  14.6  11.3   8.7      


&&

LAT...LON 3624 7953 3613 7934 3590 7918 3585 7930
          3604 7944 3613 7954         

$$

NCC037-141511-
/O.EXT.KRAH.FL.W.0036.000000T0000Z-181115T0508Z/
/BYNN7.3.ER.181113T0421Z.181113T1801Z.181114T1708Z.NO/
1010 PM EST Tue Nov 13 2018

The Flood Warning continues for
  the Haw River Near Bynum.
* At 10:00 PM Tuesday the stage was 16.6 feet.
* Flood stage is 11.0 feet.
* Moderate flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by 
  tomorrow early afternoon.
* Impact...At 17.0 feet, Major flood stage. Several homes along the 
  right bank of the river are flooded.
* Impact...At 15.0 feet, The river widens up to 800 feet across, but 
  flooding remains confined to extensive stretches of woods and 
  pastureland along the river.
* Impact...At 11.0 feet, The river widens up to 400 feet across. It 
  floods pasturelands on the right bank and woodlands on the left.


&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Wed   Thu   Fri   Sat   Sun

Haw River
 Bynum            11  16.6 Tue 10 PM   9.2  10.0   9.4   8.2      


&&

LAT...LON 3590 7918 3582 7911 3576 7905 3569 7916
          3585 7930                   

$$
990 
WGUS82 KRAH 141009
FLSRAH


Flood Statement 
National Weather Service Raleigh, NC
509 AM EST Wed Nov 14 2018

...The Flood Warning continues for the following rivers in North 
Carolina...

  Haw River At Haw River affecting Alamance County

  Haw River Near Bynum affecting Chatham County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message. If you encounter deep water while driving, do not 
attempt to drive through. Turn around, dont drown.

&&

NCC001-142208-
/O.EXT.KRAH.FL.W.0035.000000T0000Z-181115T0307Z/
/HAWN7.2.ER.181113T0409Z.181113T1401Z.181114T1507Z.NO/
509 AM EST Wed Nov 14 2018

The Flood Warning continues for
  the Haw River At Haw River.
* At  4:46 AM Wednesday the stage was 19.8 feet.
* Flood stage is 18.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by 
  late this morning.
* Impact...At 20.0 feet, There is significant overflow on the right 
  bank opposite the water treatment plant.
&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


             FLD  OBSERVED                   FORECAST 7 AM
LOCATION     STG   STG  DAY TIME     Wed   Thu   Fri   Sat   Sun 

Haw River
  Haw River   18  19.8 Wed 05 AM    19.6  13.7  16.9  12.4   9.6


&&

LAT...LON 3624 7953 3613 7934 3590 7918 3585 7930
          3604 7944 3613 7954         

$$

NCC037-142208-
/O.EXT.KRAH.FL.W.0036.000000T0000Z-181117T1312Z/
/BYNN7.3.ER.181113T0421Z.181113T1801Z.181117T0112Z.NO/
509 AM EST Wed Nov 14 2018

The Flood Warning continues for
  the Haw River Near Bynum.
* At  4:45 AM Wednesday the stage was 14.8 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by 
  Friday evening.
* Impact...At 15.0 feet, The river widens up to 800 feet across, but 
  flooding remains confined to extensive stretches of woods and 
  pastureland along the river.

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


             FLD  OBSERVED                   FORECAST 7 AM
LOCATION     STG   STG  DAY TIME     Wed   Thu   Fri   Sat   Sun   

Haw River
  Bynum       11  14.8 Wed 05 AM    13.4  10.3  11.7  10.1   8.5


&&

LAT...LON 3590 7918 3582 7911 3576 7905 3569 7916
          3585 7930                   

$$
057 
WGUS82 KRAH 141038
FLSRAH


Flood Statement 
National Weather Service Raleigh, NC
538 AM EST Wed Nov 14 2018

...The Flood Warning continues for the following rivers in North 
Carolina...

  Haw River At Haw River affecting Alamance County

...The Flood Warning continues for the following rivers in North 
Carolina...

  Haw River Near Bynum affecting Chatham County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message. If you encounter deep water while driving, do not 
attempt to drive through. Turn around, dont drown.

&&

NCC001-142238-
/O.EXT.KRAH.FL.W.0035.000000T0000Z-181115T0058Z/
/HAWN7.2.ER.181113T0409Z.181113T1401Z.181114T1258Z.NO/
538 AM EST Wed Nov 14 2018

The Flood Warning continues for
  the Haw River At Haw River.
* At  5:16 AM Wednesday the stage was 19.7 feet.
* Flood stage is 18.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by 
  this morning.
* Impact...At 20.0 feet, There is significant overflow on the right 
  bank opposite the water treatment plant.
* Impact...At 18.0 feet, Overflow begins on both banks at the water 
  treatment plant. 

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


             FLD  OBSERVED                   FORECAST 7 AM
LOCATION     STG   STG  DAY TIME     Wed   Thu   Fri   Sat   Sun 

Haw River
  Haw River   18  19.7 Wed 05 AM    18.6  13.1  16.9  12.4   9.6


&&

LAT...LON 3624 7953 3613 7934 3590 7918 3585 7930
          3604 7944 3613 7954         

$$

NCC037-142238-
/O.CON.KRAH.FL.W.0036.000000T0000Z-181117T1312Z/
/BYNN7.3.ER.181113T0421Z.181113T1801Z.181117T0112Z.NO/
538 AM EST Wed Nov 14 2018

The Flood Warning continues for
  the Haw River Near Bynum.
* At  5:15 AM Wednesday the stage was 14.6 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue to fall to below flood stage by 
  Friday evening.
* Impact...At 15.0 feet, The river widens up to 800 feet across, but 
  flooding remains confined to extensive stretches of woods and 
  pastureland along the river.
* Impact...At 11.0 feet, The river widens up to 400 feet across. It 
  floods pasturelands on the right bank and woodlands on the left.

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


             FLD  OBSERVED                   FORECAST 7 AM
LOCATION     STG   STG  DAY TIME     Wed   Thu   Fri   Sat   Sun 

Haw River
  Bynum       11  14.6 Wed 05 AM    13.9  10.3  11.7  10.1   8.5


&&

LAT...LON 3590 7918 3582 7911 3576 7905 3569 7916
          3585 7930                   

$$
843 
WGUS82 KRAH 141524
FLSRAH


Flood Statement 
National Weather Service Raleigh, NC
1024 AM EST Wed Nov 14 2018

...The Flood Warning is cancelled for the following rivers in North 
Carolina...

  Haw River At Haw River affecting Alamance County


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message. If you encounter deep water while driving, do not 
attempt to drive through. Turn around, dont drown.

&&

NCC001-141554-
/O.CAN.KRAH.FL.W.0035.000000T0000Z-181115T0058Z/
/HAWN7.2.ER.181113T0409Z.181113T1401Z.181114T1403Z.NO/
1024 AM EST Wed Nov 14 2018

The Flood Warning is cancelled for
  the Haw River At Haw River.
* At 10:16 AM Wednesday the stage was 16.9 feet.
* Flood stage is 18.0 feet.
* The river fell below flood stage at  9:03 AM Wednesday.
* Forecast...The river will continue to fall to 13.0 feet by tomorrow
  morning.
* Impact...At 18.0 feet, Overflow begins on both banks at the water 
  treatment plant. 

&&

The following are the latest observations and 7 AM forecast stages
for the next several days.


                 FLD  OBSERVED                FORECAST 7 AM
LOCATION         STG  STG  DAY TIME    Thu   Fri   Sat   Sun   Mon

Haw River
 Haw River        18  16.9 Wed 10 AM  13.0  17.2  12.5   9.7   7.7


&&

LAT...LON 3624 7953 3613 7934 3590 7918 3585 7930
          3604 7944 3613 7954         

$$

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 Raleigh, NC wrote its last area forecast discussion before this river flood warning went out at Nov 12, 8:55 PM EST, 52 minutes earlier.

Area forecast discussion, Nov 12, 8:55 PM EST, 52 minutes before
Area Forecast Discussion
National Weather Service Raleigh NC
855 PM EST Mon Nov 12 2018

.SYNOPSIS...
A strong low pressure system will move southwest to northeast
through the Southeast U.S. tonight through Tuesday, followed by
passage of a strong cold front Tuesday night. Cold high pressure
will return Wednesday. Another area of low pressure will approach
central NC from the southwest Thursday and Thursday night.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 850 PM Monday...

...Minor flooding expected in the urban areas, along with small
streams and creeks in the Triad and Triangle areas through the
overnight...

Rainfall has been a widespread soaking today into this evening. Most
areas have now seen 1 to 2 inches as of 800 PM, with the heaviest
totals in the Piedmont. Greensboro reported 1.80 through 800 PM,
Raleigh 1.75, and Burlington 1.72. Stream gauges in the Greensboro
area have been rising especially around Buffalo Creek, Horsepin
Creek, and Ryan Creek were nearing flood stage. Urban and small
stream flooding is already occurring there. Same deal with Chapel
Hill with some streams reported near bankfull already. Rivers are
also now rising with the Haw River at Haw River and at Bynum
expected to reach minor flooding later tonight. These are areas
that typically flood in a flood plain and are near streams and creeks
in urban areas.

The flash flood guidance has been lowering and was now in the 1.5 to
2 inch range in 6 hours. Radar and satellite data indicate plenty of
rain to come, with several waves noted in the flow from Augusta GA
to Columbia SC to near Greensboro. These waves will continue aid in
the dynamic lift within the low to mid level SSW jet a top our
ongoing CAD event. We are lucky that the instability is NIL due to
the cool stable pool over all of our region, even in the SE Coastal
Plain. With the coastal front likely stalling very near the coast or
possibly just inland, the very heavy rain with convection is not
expected in our region, except for a possible brief elevated storm or two
around Fayetteville and Goldsboro may enhance hourly rates later
tonight.

Widespread flash flooding is not expected at this time due to the
stratiform rain event - up to 0.25 to 0.33 of an inch per hour in
the heavier frontal bands. With additional rains of 1 to locally 2
inches still to fall, there will still be lots of runoff, just not
as it would be in convective rains in excess of an inch or more per
hour. Models are also suggesting the rainfall will be heaviest
through 400 am in the NW before the banding of heavier rains shift
more east of the Triad into central and eastern parts of NC through
700 or 800 am.

With the CAD in place, lows will remain nearly steady in the upper 30s
and 40s in the Piedmont. Temperatures in the Coastal Plain should rise
into the 50s to near 60 as the coastal front nears. Temperatures
will fall again on Tuesday in the SE as the front gets pushes back
offshore as the low pressure passes by.

&&

.SHORT TERM /TUESDAY THROUGH TUESDAY NIGHT/...
As of 330 PM Monday...

Anomalously high PWs will hold over our area early Tue, before being
shunted to the SE and S late Tue into Tue night. The southern
portion of the mid level trough will close off over NE TX while the
northern portion remains progressive over SE Canada. While the mid
level flow will veer slightly in response, we'll still keep a steady
stream of mid and high level moisture over the state. In the low
levels, both the low level jet and the surface low that forms along
the E NC front will both track quickly up the Mid Atlantic and
Northeast coast early Tue, allowing the front to ease eastward
during the day. The surface high attempting to build in from the W
will be initially hindered by the higher terrain, such that we'll be
left with abundant low level moisture and weak low level flow that
will serve to keep clouds locked in for much of the day. While
forcing for ascent won't be as strong or deep as today, the presence
of the upper jet from OH NE through the Maritimes will keep at least
weak upper divergence over our area, necessitating a continuation of
high pops Tue, trending down NW to SE Tue night as the front settles
just to our SE. Expect chilly highs from the lower 50s to lower 60s.
Lows from the mid 30s to lower 40s with partial clearing possible in
the far NW late. -GIH

&&

.LONG TERM /WEDNESDAY THROUGH SUNDAY/...
As of 305 PM Monday...

Wednesday we will get a little break from the heavy precipitation as
a surface high pressure moves across the Ohio Valley and into the
mid-Atlantic states. Most of the area should remain dry, especially
north of US-64 but the GFS never does clear out precipitation across
the southern areas. That being said both the NAM and ECMWF do in
fact clear the state so will only carry slight chance across the
south. Cold air advection around the front of the high will bring
northerly flow and high temperatures only topping out in the mid
40s.

By Thursday morning both the GFS and the ECMWF bring the surface
high into northern New England and introduce precipitation across
central during the early morning hours. With the high not able to
filter enough cold air in from the north in time, temperatures in
the Triad and the VA border counties should stay slightly above
freezing and keep precipitation all liquid with the exception of a
few inconsequential sleet pellets. One thing to keep an eye on
however is that the NAM becomes a bit of an outlier by Thursday
morning in a key way as it is further south with the surface high
across the mid-Atlantic which keeps precipitation out of the area
till after 12z Thursday but as a consequence, filter colder air into
the Triad and NW Piedmont. Looking at forecast soundings, this would
present an opportunity for a couple hours of freezing rain in the
Triad. With antecedent temperatures well above freezing, it is
likely that even in this scenario, any ice accrual would be very
minimal but it is worth keeping an eye on over the next couple of
model cycles to see if it falls more in line with the GFS and the
ECMWF. For the forecast, have kept temperatures slightly above
freezing and all precipitation liquid at this time. Rain will
continue through the day on Thursday and into Thursday night before
clearing out before 12z on Friday. Rainfall amounts looks to be
slightly lower than the early week system and so have a storm total
QPF of between 1.5 and 2 inches at this time which should put us
somewhere between 4-5 inches for the week. Will need to keep an eye
on how much rain we get in our river basins to identify any
potential for river flooding later in the weekend as water works its
way downstream. Low temps should be in the mid 30s but if the
precipitation clears out quicker, the Triad could drop into the
lower 30s.

Clearing will commence on Friday with high pressure moving into the
area which will remain in place through the weekend. Highs in the
50s with lows in the mid 30s.

&&

.AVIATION /00Z TUESDAY THROUGH SATURDAY/...
As of 740 PM Monday...

24 Hour TAF Period: Poor/adverse aviation conditions are expected to
continue over central NC over the 24 hour TAF period, as a strong
storm system continues to moves SW to NE through the region tonight,
bringing a large shield of rain and associated IFR/LIFR conditions.
Low level wind shear will also be possible between 00Z-08Z tonight,
particularly at FAY/RWI where light winds at the surface will
strengthen to 35-45 kts from the SE at 1500-2000 ft AGL. Marginal
LLWS will be possible as far west as KRDU.

Continued poor aviation conditions will lingering into Tuesday
afternoon, with cigs possibly lifting to low end MVFR by late in the
TAF period with periods of drizzle and light rain still possible.

Outlook: High pressure is expected to build into the area late
Tuesday into Wednesday, with a brief period VFR conditions expected
on Wednesday. Another low pressure system is expected to move in
from the SSW and brings a return to IFR/LIFR conditions and high
rain chances Wed night, lasting through Thu night. VFR conditions
will follow on Fri/Sat as high pressure builds in from the SW.

&&

.RAH WATCHES/WARNINGS/ADVISORIES...
None.

&&

SYNOPSIS...WSS
NEAR TERM...Badgett
SHORT TERM...Hartfield
LONG TERM...Ellis
AVIATION...BSD/Hartfield
Hazardous weather outlook, Nov 12, 3:49 PM EST, 5 hours 58 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Raleigh NC
349 PM EST Mon Nov 12 2018

NCZ007>011-021>028-038>043-073>078-083>086-088-089-131000-
Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance-
Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake-
Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson-
Richmond-Scotland-Hoke-Cumberland-Sampson-
349 PM EST Mon Nov 12 2018

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...This afternoon and tonight.

Periods of moderate to heavy rain will continue over central North
Carolina through tonight, particularly over the Piedmont. This
rainfall could lead to extensive ponding of water on roads and some
flooding of creeks, drainage ditches, and underpasses.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Another round of moderate to heavy rain is expected Wednesday night
into Thursday. This additional rainfall may lead to some minor
flooding of rain-swollen creeks.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 12, 7:11 PM ESTAreal Flood AdvisoryRAHGuilford6 hr
Nov 12, 8:37 PM ESTFlash Flood WarningRAHGuilford6 hr
Nov 12, 8:49 PM ESTFlash Flood WarningRAHDurham, Orange8 hr
Nov 12, 9:47 PM ESTRiver Flood WarningRAHChatham45 hr
Nov 12, 9:54 PM ESTAreal Flood AdvisoryRAHWake9 hr
Nov 12, 10:07 PM ESTAreal Flood AdvisoryRAHAlamance, Durham, Orange, Person9 hr
Nov 12, 11:21 PM ESTAreal Flood AdvisoryRAHAnson, Chatham, Harnett, Hoke, Lee, Montgomery and 5 more3 hr
Nov 12, 11:27 PM ESTFlash Flood WarningRAHChatham, Lee, Wake6 hr
Nov 12, 11:59 PM ESTAreal Flood AdvisoryRAHFranklin, Granville, Halifax, Nash, Vance, Warren6 hr
Nov 13, 12:08 AM ESTAreal Flood AdvisoryRAHCumberland, Harnett, Hoke, Johnston, Sampson, Scotland3 hr
Nov 13, 12:15 AM ESTRiver Flood WarningRAHChatham, Lee4 days
Nov 13, 2:08 AM ESTSpecial Weather StatementRAHWayne52 min
Nov 13, 2:12 AM ESTAreal Flood AdvisoryRAHMoore, Randolph6 hr
Nov 13, 2:18 AM ESTAreal Flood AdvisoryRAHDavidson6 hr
Nov 13, 2:32 AM ESTSpecial Weather StatementRAHWayne28 min
Nov 13, 2:52 AM ESTRiver Flood WarningRAHJohnston41 hr
Nov 13, 3:31 AM ESTRiver Flood WarningRAHAnson, Stanly19 hr
Nov 13, 4:24 AM ESTRiver Flood WarningRAHHarnett30 hr
Nov 13, 4:35 AM ESTRiver Flood WarningRAHCumberland5 days
Nov 13, 4:39 AM ESTRiver Flood WarningRAHJohnston4 days
Nov 13, 4:48 AM ESTAreal Flood WarningRAHDurham6 hr
Nov 13, 6:34 AM ESTAreal Flood WarningRAHChatham, Wake6 hr
Nov 13, 7:54 AM ESTAreal Flood WarningRAHPerson6 hr
Nov 13, 8:57 AM ESTRiver Flood WarningRAHFranklin53 hr
Nov 13, 9:00 AM ESTRiver Flood WarningRAHWayne9 days
Nov 13, 9:02 AM ESTRiver Flood WarningRAHCumberland5 days

Nearby

River Flood Warnings in North Carolina, 2018Every river flood warning in 2018

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.