Alert archive / Mississippi / River Flood Warnings in 2018

River Flood Warning 101, NWS Jackson, MS

December 7, 2018Copiah County, Simpson County, Mississippi

NWS Jackson, MS issued this river flood warning at Dec 7, 2018, 10:27 AM CST for Copiah County, Simpson County, Mississippi. It took effect at Dec 9, 2018, 9:00 AM CST. It was in force for 3 days.

The area

The outline as issued.

The facts

Issued
Dec 7, 2018, 10:27 AM CST (16:27 UTC)
In effect from
Dec 9, 2018, 9:00 AM CST
Expired
Dec 12, 2018, 9:00 AM CST
In force
3 days
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
Minor

Counties Copiah County, MS, Simpson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 56 km from the middle of the area, began a volume at 16:29 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 Pearl River at Rockport (ROCM6). The gauge peaked at 20.05 ft at Dec 10, 2018, 6:00 AM CST.

actionminormoderate10203012/0712/0812/0912/1012/1112/1212/13
Action stage
24 ft
Minor stage
25 ft
Moderate stage
35 ft
Major stage
39 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02488000, 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.

348 
WGUS44 KJAN 071627
FLWJAN
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON, MS
1027 AM CST Fri Dec 7 2018


...The National Weather Service in Jackson has issued a Flood Warning
for the following rivers in Mississippi... 

  Pearl River Above Philadelphia affecting Neshoba County
  Tuscolameta Creek At Walnut Grove affecting Leake County
  Pearl River Near Rockport affecting Copiah and Simpson Counties
  Pearl River Near Monticello affecting Lawrence County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive or walk through areas where water covers roadway! The 
water may be deeper than it appears. Remember...Turn around, don't 
drown!

Forecasts are based on rainfall that has occurred and that which is 
forecast to occur. 48 hours of forecast rainfall is used for 
all rivers today.

Additional information is available at:  
https://water.weather.gov/ahps2/index.php?wfo=JAN

The next regularly scheduled update is expected tonight between 8 and
10 PM.

&&

MSC099-082227-
/O.NEW.KJAN.FL.W.0099.181209T1500Z-000000T0000Z/
/PLAM6.1.ER.181209T1500Z.181212T0000Z.000000T0000Z.NO/
1027 AM CST Fri Dec 7 2018

The National Weather Service in Jackson has issued a 

* Flood Warning for 
  The Pearl River Above Philadelphia
* from Sunday morning until further notice.
* At  9:45 AM Friday the stage was 8.2 feet.
* Minor flooding is forecast.
* Flood stage is 13.0 feet.
* Forecast...With 3 inches of rainfall expected over the next
  36 hours, the Pearl River will rise above flood stage late Sunday 
  morning and will continue to rise to near 13.5 feet Tuesday evening.
* Impact...At 14.0 feet...Water begins to cover some of the Burnside 
  Lake Water Park roadways and camp areas.
* Impact...At 13.0 feet...Water begins to affect Burnside Lake Water 
  Park.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sat   Sun   Mon Crest Time  Date

Upper Pearl River
Philadelphia   13   8.2 Fri 10 AM   8.2  12.9  13.3  13.5 06 PM 12/11


&&


LAT...LON 3289 8922 3291 8915 3293 8902 3292 8893
      3284 8892 3277 8918             



$$

MSC079-082227-
/O.NEW.KJAN.FL.W.0100.181208T2330Z-181212T0645Z/
/WTGM6.1.ER.181208T2330Z.181210T1200Z.181211T1845Z.NO/
1027 AM CST Fri Dec 7 2018

The National Weather Service in Jackson has issued a 

* Flood Warning for 
  The Tuscolameta Creek At Walnut Grove
* from Saturday afternoon to late Tuesday night.
* At 10:00 AM Friday the stage was 12.9 feet.
* Minor flooding is forecast.
* Flood stage is 25.0 feet.
* Forecast...With 3 inches of rainfall expected over the next
  36 hours, the creek will rise above flood stage tomorrow afternoon
  and will continue to rise to near 27.0 feet Monday morning.  
* Impact...At 27.0 feet...Agricultural land along the river is 
  flooding.
* Impact...At 25.0 feet...Agricultural land and low areas along and 
  near the river begin to flood.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sat   Sun   Mon Crest Time  Date

Tuscolameta Creek
Walnut Grove   25  12.9 Fri 10 AM  13.7  26.2  27.0  27.0 06 AM 12/10


&&


LAT...LON 3266 8953 3261 8945 3257 8935 3250 8942
      3258 8953 3263 8960             



$$

MSC029-127-082227-
/O.NEW.KJAN.FL.W.0101.181209T1500Z-181212T1500Z/
/ROCM6.1.ER.181209T1500Z.181210T0600Z.181212T0300Z.NO/
1027 AM CST Fri Dec 7 2018

The National Weather Service in Jackson has issued a 

* Flood Warning for 
  The Pearl River Near Rockport
* from Sunday morning to Wednesday morning.
* At  9:30 AM Friday the stage was 10.0 feet.
* Minor flooding is forecast.
* Flood stage is 25.0 feet.
* Forecast...With 3 inches of rainfall expected over the next
  36 hours, the river will rise above flood stage late Sunday 
  morning and will continue to rise to near 26.5 feet early Monday 
  morning.  
* Impact...At 25.0 feet...Widespread flooding of low pastureland and 
  bottomland is occurring.
* Impact...At 21.0 feet...Minor flooding of bottomlands is occurring 
  in the immediate proximity of the river.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sat   Sun   Mon Crest Time  Date

Middle Pearl River 
Rockport       25  10.0 Fri 09 AM  10.5  24.3  26.5  26.5 12 AM 12/10


&&


LAT...LON 3168 9019 3178 9019 3193 9025 3198 9012
      3182 9005 3169 9005             



$$

MSC077-082227-
/O.NEW.KJAN.FL.W.0102.181210T1500Z-000000T0000Z/
/MTCM6.1.ER.181210T1500Z.181211T0600Z.000000T0000Z.NO/
1027 AM CST Fri Dec 7 2018

The National Weather Service in Jackson has issued a 

* Flood Warning for 
  The Pearl River Near Monticello
* from Monday morning until further notice.
* At  9:15 AM Friday the stage was 8.4 feet.
* Minor flooding is forecast.
* Flood stage is 22.0 feet.
* Forecast...With near 3 inches of rainfall expected over the next
  36 hours, the river will rise above flood stage late Monday 
  morning and will continue to rise to near 22.5 feet early Tuesday 
  morning.
* Impact...At 22.0 feet...Water inundates some lowland and 
  agricultural land near the river.
* Impact...At 20.0 feet...Water begins to enter some lowland pasture 
  land in the vicinity of Monticello .

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sat   Sun   Mon Crest Time  Date

Middle Pearl River 
Monticello     22   8.4 Fri 09 AM   8.3  13.9  21.8  22.5 12 AM 12/11


&&


LAT...LON 3140 9008 3155 9017 3168 9019 3169 9005
      3155 9002 3140 8992             



$$
4 follow-up statements
829 
WGUS44 KJAN 080152
FLWJAN
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON, MS
752 PM CST Fri Dec 7 2018


  Pearl River Near Rockport affecting Copiah and Simpson Counties


  Pearl River Near Monticello affecting Lawrence County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive or walk through areas where water covers roadway! The 
water may be deeper than it appears. Remember...Turn around, don't 
drown!

Please note that forecast crests are based upon rainfall that has 
occurred along with forecastrainfall for the next 24 hours. Rainfall 
amounts greater than forecast may take the rivers higher.


Additional information is available at:  
https://water.weather.gov/ahps2/index.php?wfo=JAN

The next regularly scheduled update is expected between 8 and 10 AM.

&&

MSC029-127-090751-
/O.CON.KJAN.FL.W.0101.181209T1500Z-181212T1500Z/
/ROCM6.1.ER.181209T1500Z.181210T0600Z.181212T0300Z.NO/
752 PM CST Fri Dec 7 2018

The Flood Warning continues for 
 The Pearl River Near Rockport.
* from Sunday morning to Wednesday morning.
* At  7:30 PM Friday the stage was 9.9 feet.
* Minor flooding is forecast.
* Flood stage is 25.0 feet.
* Forecast...The river will rise above flood stage late Sunday 
  morning and will continue to rise to near 26.5 feet early Monday 
  morning.  
* Impact...At 25.0 feet...Widespread flooding of low pastureland and 
  bottomland is occurring.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sat   Sun   Mon Crest Time  Date

Middle Pearl River 
Rockport       25   9.9 Fri 07 PM  10.5  24.3  26.5  26.5 12 AM 12/10


&&


LAT...LON 3168 9019 3178 9019 3193 9025 3198 9012
      3182 9005 3169 9005             



$$

MSC077-090751-
/O.EXT.KJAN.FL.W.0102.181210T1500Z-181213T0400Z/
/MTCM6.1.ER.181210T1500Z.181211T0600Z.181212T1600Z.NO/
752 PM CST Fri Dec 7 2018

The Flood Warning continues for 
 The Pearl River Near Monticello.
* from Monday morning to Wednesday evening.
* At  7:15 PM Friday the stage was 8.2 feet.
* Minor flooding is forecast.
* Flood stage is 22.0 feet.
* Forecast...The river will rise above flood stage late Monday 
  morning and will continue to rise to near 22.5 feet early Tuesday 
  morning.  
* Impact...At 22.0 feet...Water inundates some lowland and 
  agricultural land near the river.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sat   Sun   Mon Crest Time  Date

Middle Pearl River 
Monticello     22   8.2 Fri 07 PM   8.3  13.9  21.8  22.5 12 AM 12/11


&&


LAT...LON 3140 9008 3155 9017 3168 9019 3169 9005
      3155 9002 3140 8992             



$$
353 
WGUS84 KJAN 081518
FLSJAN
FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON, MS
918 AM CST Sat Dec 8 2018


...The Flood Warning continues for the following rivers in 
Mississippi...

  Pearl River Above Philadelphia affecting Neshoba County 
  Tuscolameta Creek At Walnut Grove affecting Leake County 
  Pearl River Near Rockport affecting Copiah and Simpson Counties 
  Pearl River Near Monticello affecting Lawrence County 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive or walk through areas where water covers roadway! The 
water may be deeper than it appears. Remember...Turn around, don't 
drown!

Forecasts are based on rainfall that has occurred and that which is 
forecast to occur. Routine 24 hours of forecast rainfall is used for 
all rivers  except for those in the Tombigbee River System which 
includes Tibbee Creek,  Luxapallila Creek, Noxubee River,and the 
Tombigbee River mainstem where a routine of 48 hours of additional 
rainfall is used.

Additional information is available at:  
https://water.weather.gov/ahps2/index.php?wfo=JAN

The next regularly scheduled update is expected tonight between 8 and
10 PM.

&&

MSC099-092117-
/O.EXT.KJAN.FL.W.0099.181210T0600Z-181213T1200Z/
/PLAM6.1.ER.181210T0600Z.181211T0600Z.181213T0000Z.NO/
918 AM CST Sat Dec 8 2018


The Flood Warning continues for
  The Pearl River Above Philadelphia
* from late Sunday night to Thursday morning.
* At  8:45 AM Saturday the stage was 8.0 feet.
* Minor flooding is forecast.
* Flood stage is 13.0 feet.
* Forecast...The river will rise above flood stage early Monday 
  morning and will continue to rise to near 13.5 feet early Tuesday 
  morning.  
* Impact...At 14.0 feet...Water begins to cover some of the Burnside 
  Lake Water Park roadways and camp areas.
* Impact...At 13.0 feet...Water begins to affect Burnside Lake Water 
  Park.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sun   Mon   Tue Crest Time  Date

Upper Pearl River
Philadelphia   13   8.0 Sat 09 AM  11.5  13.2  13.5  13.5 12 AM 12/11


&&


LAT...LON 3289 8922 3291 8915 3293 8902 3292 8893
      3284 8892 3277 8918             



$$

MSC079-092117-
/O.EXT.KJAN.FL.W.0100.181209T1525Z-181212T1314Z/
/WTGM6.1.ER.181209T1525Z.181211T0000Z.181212T0114Z.NO/
918 AM CST Sat Dec 8 2018

...Flood Warning extended until Wednesday morning...

The Flood Warning continues for
  The Tuscolameta Creek At Walnut Grove
* from Sunday morning to Wednesday morning.
* At  9:00 AM Saturday the stage was 13.3 feet.
* Minor flooding is forecast.
* Flood stage is 25.0 feet.
* Forecast...The river will rise above flood stage late tomorrow 
  morning and will continue to rise to near 27.0 feet Monday evening.
* Impact...At 27.0 feet...Agricultural land along the river is 
  flooding.
* Impact...At 25.0 feet...Agricultural land and low areas along and 
  near the river begin to flood.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sun   Mon   Tue Crest Time  Date

Tuscolameta Creek
Walnut Grove   25  13.3 Sat 09 AM  23.8  26.8  26.9  27.0 06 PM 12/10


&&


LAT...LON 3266 8953 3261 8945 3257 8935 3250 8942
      3258 8953 3263 8960             



$$

MSC029-127-092117-
/O.EXT.KJAN.FL.W.0101.181209T2317Z-000000T0000Z/
/ROCM6.1.ER.181209T2317Z.181210T1800Z.000000T0000Z.NO/
918 AM CST Sat Dec 8 2018

...Flood Warning extended until further notice...

The Flood Warning continues for
  The Pearl River Near Rockport
* from Sunday afternoon until further notice.
* At  8:30 AM Saturday the stage was 10.0 feet.
* Minor flooding is forecast.
* Flood stage is 25.0 feet.
* Forecast...The river will rise above flood stage tomorrow afternoon
  and will continue to rise to near 26.5 feet early Monday afternoon.
* Impact...At 25.0 feet...Widespread flooding of low pastureland and 
  bottomland is occurring.
* Impact...At 21.0 feet...Minor flooding of bottomlands is occurring 
  in the immediate proximity of the river.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sun   Mon   Tue Crest Time  Date

Middle Pearl River 
Rockport       25  10.0 Sat 08 AM  20.6  26.4  26.2  26.5 12 PM 12/10


&&


LAT...LON 3168 9019 3178 9019 3193 9025 3198 9012
      3182 9005 3169 9005             



$$

MSC077-092117-
/O.EXT.KJAN.FL.W.0102.181211T0300Z-000000T0000Z/
/MTCM6.1.ER.181211T0300Z.181211T1800Z.000000T0000Z.NO/
918 AM CST Sat Dec 8 2018

...Flood Warning extended until further notice...

The Flood Warning continues for
  The Pearl River Near Monticello
* from Monday evening until further notice.
* At  8:15 AM Saturday the stage was 8.2 feet.
* Minor flooding is forecast.
* Flood stage is 22.0 feet.
* Forecast...The river will rise above flood stage Monday before 
  midnight and will continue to rise to near 22.5 feet Tuesday 
  evening.
* Impact...At 22.0 feet...Water inundates some lowland and 
  agricultural land near the river.
* Impact...At 20.0 feet...Water begins to enter some lowland pasture 
  land in the vicinity of Monticello .

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sun   Mon   Tue Crest Time  Date

Middle Pearl River 
Monticello     22   8.2 Sat 08 AM  11.9  20.6  22.4  22.5 06 PM 12/11


&&


LAT...LON 3140 9008 3155 9017 3168 9019 3169 9005
      3155 9002 3140 8992             



$$
358 
WGUS84 KJAN 090116
FLSJAN
FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON, MS
716 PM CST Sat Dec 8 2018

...The Flood Warning continues for the following rivers in Mississippi..

  Pearl River Near Rockport affecting Copiah and Simpson Counties 
  Pearl River Near Monticello affecting Lawrence County 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive or walk through areas where water covers roadway! The 
water may be deeper than it appears. Remember...Turn around, don't 
drown!

Forecasts are based on rainfall that has occurred and that which is 
forecast to occur. Routine 24 hours of forecast rainfall is used for 
all rivers  except for those in the Tombigbee River System which 
includes Tibbee Creek,  Luxapallila Creek, Noxubee River,and the 
Tombigbee River mainstem where a routine of 48 hours of additional 
rainfall is used.

The next regularly scheduled update is expected between 8 and 10 AM.

&&

MSC029-127-100715-
/O.CON.KJAN.FL.W.0101.181209T2317Z-000000T0000Z/
/ROCM6.1.ER.181209T2317Z.181210T1800Z.000000T0000Z.NO/
716 PM CST Sat Dec 8 2018


The Flood Warning continues for
  The Pearl River Near Rockport
* from Sunday afternoon until further notice.
* At 6:30 PM Saturday the stage was 10.9 feet.
* Minor flooding is forecast.
* Flood stage is 25.0 feet.
* Forecast...The river will rise above flood stage tomorrow afternoon
  and will continue to rise to near 26.5 feet early Monday afternoon.
* Impact...At 25.0 feet...Widespread flooding of low pastureland and 
  bottomland is occurring.
* Impact...At 21.0 feet...Minor flooding of bottomlands is occurring 
  in the immediate proximity of the river.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sun   Mon   Tue Crest Time  Date

Middle Pearl River 
Rockport       25  10.9 Sat 06 PM  20.4  26.4  26.2  26.5 12 PM 12/10


&&


LAT...LON 3168 9019 3178 9019 3193 9025 3198 9012
      3182 9005 3169 9005             



$$

MSC077-100715-
/O.CON.KJAN.FL.W.0102.181211T0300Z-000000T0000Z/
/MTCM6.1.ER.181211T0300Z.181211T1800Z.000000T0000Z.NO/
716 PM CST Sat Dec 8 2018


The Flood Warning continues for
  The Pearl River Near Monticello
* from Monday evening until further notice.
* At 6:15 PM Saturday the stage was 8.6 feet.
* Minor flooding is forecast.
* Flood stage is 22.0 feet.
* Forecast...The river will rise above flood stage Monday before 
  midnight and will continue to rise to near 22.5 feet early Tuesday 
  afternoon.
* Impact...At 22.0 feet...Water inundates some lowland and 
  agricultural land near the river.
* Impact...At 20.0 feet...Water begins to enter some lowland pasture 
  land in the vicinity of Monticello .

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Sun   Mon   Tue Crest Time  Date

Middle Pearl River 
Monticello     22   8.6 Sat 06 PM  11.9  20.6  22.4  22.5 12 PM 12/11


&&


LAT...LON 3140 9008 3155 9017 3168 9019 3169 9005
      3155 9002 3140 8992             



$$
216 
WGUS84 KJAN 091657
FLSJAN
FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON, MS
1057 AM CST Sun Dec 9 2018


...The Flood Warning is cancelled for the following rivers 
in Mississippi...
 
  Pearl River Near Rockport affecting Copiah and Simpson Counties
  Pearl River Near Monticello affecting Lawrence County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive or walk through areas where water covers roadway! The 
water may be deeper than it appears. Remember...Turn around, don't 
drown!

Forecasts are based on rainfall that has occurred and that which is 
forecast to occur. Routine 24 hours of forecast rainfall is used for 
all rivers  except for those in the Tombigbee River System which 
includes Tibbee Creek,  Luxapallila Creek, Noxubee River,and the 
Tombigbee River mainstem where a routine of 48 hours of additional 
rainfall is used.

The next regularly scheduled update is expected tonight between 8 and
10 PM.

&&

MSC029-127-091727-
/O.CAN.KJAN.FL.W.0101.000000T0000Z-181209T1657Z/
/ROCM6.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1057 AM CST Sun Dec 9 2018

The Flood Warning is cancelled for
  The Pearl River Near Rockport.
* At 10:30 AM Sunday the stage was 18.0 feet.
* Flood stage is 25.0 feet.
* Forecast...The river will crest below flood stage at 24.5 feet 
  Tuesday morning.

  &&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Mon   Tue   Wed Crest Time  Date

Middle Pearl River 
Rockport       25  18.0 Sun 10 AM  22.2  24.5  23.9  24.5 06 AM 12/11


&&


LAT...LON 3168 9019 3178 9019 3193 9025 3198 9012
      3182 9005 3169 9005             



$$

MSC077-091727-
/O.CAN.KJAN.FL.W.0102.000000T0000Z-181209T1657Z/
/MTCM6.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1057 AM CST Sun Dec 9 2018

The Flood Warning is cancelled for
  The Pearl River Near Monticello.
* At 10:15 AM Sunday the stage was 12.6 feet.
* Flood stage is 22.0 feet.
* Forecast...The river will crest below flood stage at 21.5 feet 
  Wednesday morning.

&&
 
              Flood    Observed        Forecast 6 AM      Crest
Location      Stg   Stg Day  Time   Mon   Tue   Wed Crest Time  Date

Middle Pearl River 
Monticello     22  12.6 Sun 10 AM  17.3  20.6  21.5  21.5 06 AM 12/12


&&


LAT...LON 3140 9008 3155 9017 3168 9019 3169 9005
      3155 9002 3140 8992             



$$

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 Jackson, MS wrote its last area forecast discussion before this river flood warning went out at Dec 7, 10:18 AM CST, 9 minutes earlier.

Area forecast discussion, Dec 7, 10:18 AM CST, 9 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
1018 AM CST Fri Dec 7 2018

.UPDATE...
Updated for morning discussion.

&&

.DISCUSSION...
Not much has changed since the morning discussion. The cold front
is still hanging out in the Delta and appears to have stalled.
This is where the bulk of the rain is falling this morning. So
far, it looks like the greatest amount of rain has been in Bolivar
County with radar estimates up to 1". The rest of the area has
seen from 1/4" to 3/4" within the ArkLaMiss Delta. As the front
has stalled, the rain is expected to continue throughout the day.
As the shortwave trough digs eastward into Mexico this afternoon
and evening, the rain will ramp up to our west. As the trough
pushes east tonight, the bulk of the rain will move into our CWA
during the day tomorrow. /10/

Prior discussion below:

Today through Saturday:

Expect an active period of weather through the weekend, with
widespread moderate-heavy rain & cooler than normal conditions
anticipated. As increasing zonal westerlies & isentropic lift &
moisture is advecting into the area, this is helping widespread
clouds to be moving across the area this morning. In addition, the
increasing lift & mid-deep layer moisture, in conjunction with a
cold front swinging down into the Delta, is helping scattered to
widespread light rain showers to move in. The synoptic, water
vapor & surface analysis this morning indicate a shortwave trough
off the California Coast & Baja Peninsula, helping to drive this
moisture & rain in, while our area is situated right along a
surface cold front & strong 1035mb off to the north over the mid-
upper Plains over Iowa. As the shortwave trough dives down through
the Desert Southwest & Mexico, expect rain chances to slowly
spread east- southeast through the day. Due to widespread rain &
clouds, expect temperatures to be below normal, in the upper 40s
north of I-20 to upper 50s to near 60 degrees to the south.

Main focus will be on the heavy rain potential developing late
tonight through the day Saturday. As the shortwave trough digs
across Mexico & into southern Texas tonight, expect moisture
advection & upper synoptic lift & divergence to overspread the
area. This will help a strong surface low to & cold front to
develop along the Texas Gulf coast & move eastward into Saturday.
This will help strong moisture advection & PWs approaching an inch
& a quarter to inch & a half to move across most of northeast
Louisiana, southeast Arkansas & west-southwest Mississippi tonight
& spreading eastward across the region. Due to limited lapse
rates, not expecting any activity being convective. However,
widespread rainfall with strong frontogenetical forcing will help
promote very efficient rainfall. The heaviest rainfall should
develop across the western areas along & west of the Mississippi
River before daybreak Saturday & spread eastward through the day.
As the longwave trough dives in & upper divergence increases,
expect the heaviest rainfall to become more confined to the better
low-level (i.e. ~850mb) frontogenetical forcing just along &
south of the I-20 corridor & near the track of the surface low
moving along the Gulf coast. Right now widespread totals of 2-4
inches are possible, with some potentially 4-5 inch amounts in
northeast Louisiana & southeast Arkansas. With this not being
convective & more long duration, expect this to gradually pile up
& not be an issue until the better frontogenetical forcing moves
in late tonight & through Saturday. Thus, expanded the "Limited"
for flooding in the HWO/graphics further east-northeast. However,
didn't include the Golden Triangle due the heaviest accumulation &
rates further south & west. In addition, as the strong surface
low moves in, very strong low-level winds will bring potential for
some of that to mix down to the surface. Some gusts could reach
up near 30mph or so. Kept the "Limited" going for the entire area
Saturday, with some brief gusts up to 30mph possible.

In terms of the forecast through Saturday, due to widespread
clouds & rain moving in, expect lows tonight to be above normal in
the low- mid 40s. Due to the same reasons & increasing moderate-
heavy rain chances & clouds, highs on Saturday will be below
normal & not really out of question for them to be a few degrees
cooler than anticipated. Went near raw guidance for temperatures
due to anticipated active weather scheme. /DC/

Saturday Night through Thursday:

Cooler air will start to filter into our forecast area as the
surface low pulls east on Saturday night. A mid-level trough will
remain in place over our region into the early part of next week,
and models show the axis of an elongated 700mb circulation
lingering through Sunday night into Monday morning. There is some
slight disagreement among models regarding a subtle shortwave
rounding the base of the trough on Sunday, but a more pronounced
shortwave (as depicted in the NAM and CMC) would keep enough mid-
level moisture in place for the possibility of some flurries or
light snow to mix in with the departing light rain. The less
developed shortwave in the ECMWF and GFS solutions would likely
not be enough to keep precipitation going into Sunday night. Given
the possibility however, I did introduce a mention of light snow
or flurries where precip lingers into the overnight hours Sunday
night and early Monday morning (mainly north and east from
Jackson). No accumulations are expected with prior temperatures
being warm and the amount of available moisture being
questionable.

The cool weather should continue into the middle of next week
with the cooler surface high pressure slowly moving across the
region. A progressive upper-air pattern through most of the week
will limit any extreme warming or cooling trends, but a possibly
potent weather system arriving late in the week may change that.
Exact timing, placement, and depth of the late week system are
uncertain at this time, but the various model guidance continue to
show cyclogenesis occurring as an upper-level low pressure system
dives from the Pacific Northwest toward teh Southern Plains
Thursday into Friday. Such a system would definitely wrap up
plenty of moisture into it, but it is too early to speculate on
wintry precipitation potential for anywhere near our region yet.
For now, have increased POPs some beginning Wednesday night. /NF/

&&

.AVIATION...
12Z TAF discussion:
Increasingly low ceilings & rain showers are moving in the region,
with some MVFR ceilings & VCSH & -RA moving in near GLH & GWO. Due to
drier air, most of the other areas near GTR, JAN & HKS will be
slightly later near mid-morning to midday (07/15-18Z) for VCSH & -RA
& lowered MVFR to possibly IFR ceilings. Most widespread IFR ceilings
can be expected across the Delta (i.e. GLH & GWO) where rainfall
rates will be higher, with some of these heavier rates moving near
GTR by mid-afternoon (07/~21Z). Otherwise, VFR conditions can be
expected at MEI, HBG & PIB with ceilings lowering to around 3-5kft.
Some MVFR ceilings & VCSH/-RA are possible later at these sites into
this evening to near midnight (i.e. 08/03-07Z). Extremely poor
aviation weather is still on tap for most of the weekend. /DC/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       52  43  49  41 /  53  89 100  61
Meridian      52  41  49  42 /  26  73 100  79
Vicksburg     52  44  48  39 /  79  96 100  55
Hattiesburg   60  44  53  44 /  10  58 100  65
Natchez       59  45  50  39 /  36  89 100  43
Greenville    47  43  45  37 / 100 100 100  75
Greenwood     47  42  47  39 / 100 100 100  79

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.

&&

10
Hazardous weather outlook, Dec 7, 4:30 AM CST, 5 hours 57 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
430 AM CST Fri Dec 7 2018

ARZ074-075-LAZ007>009-015-016-023>026-MSZ034-040-041-081030-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Washington-
Issaquena-Sharkey-
430 AM CST Fri Dec 7 2018

This hazardous weather outlook is for portions of southeast
Arkansas, northeast Louisiana, northwest Mississippi, and west
central Mississippi.

.DAY ONE...Today and Tonight

FLOODING
THREAT...Limited
TIMING...Tonight

Tonight, localized flash flooding, due to heavy rain, is possible,
particularly in low lying and urban areas. This will mainly be through
Saturday morning along and west of the Mississippi River. Rainfall
totals will be between 2-4 inches, with locally higher amounts
possible, with a majority of the rainfall occurring Saturday.

(https://www.weather.gov/images/jan/graphicast/1.png)

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Localized flash flooding, due to heavy rain, is possible, particularly
in low lying and urban areas. This will mainly be early Saturday
morning and spreading eastward across the region through the day.
Rainfall totals will be between 2-4 inches, with locally higher
amounts possible.

(https://www.weather.gov/images/jan/graphicast/1.png)

Wind gusts up to 30 mph are possible for the entire outlook area
on Saturday.

(https://www.weather.gov/images/jan/graphicast/2.png)

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Thursday.

MSZ018-019-025>033-035>039-042>066-072>074-081030-
Bolivar-Sunflower-Leflore-Grenada-Carroll-Montgomery-Webster-Clay-
Lowndes-Choctaw-Oktibbeha-Humphreys-Holmes-Attala-Winston-Noxubee-
Yazoo-Madison MS-Leake-Neshoba-Kemper-Warren-Hinds-Rankin-Scott-
Newton-Lauderdale-Claiborne-Copiah-Simpson-Smith-Jasper-Clarke-
Jefferson-Adams-Franklin MS-Lincoln-Lawrence-Jefferson Davis-
Covington-Jones-Marion-Lamar-Forrest-
430 AM CST Fri Dec 7 2018

This hazardous weather outlook is for portions of central
Mississippi, north central Mississippi, and south central
Mississippi.

.DAY ONE...Today and Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Localized flash flooding, due to heavy rain, is possible, particularly
in low lying and urban areas. This will mainly be early Saturday
morning and spreading eastward across the region through the day.
Rainfall totals will be between 2-4 inches, with locally higher
amounts possible.

(https://www.weather.gov/images/jan/graphicast/1.png)

Wind gusts up to 30 mph are possible for the entire outlook area
on Saturday.

(https://www.weather.gov/images/jan/graphicast/2.png)

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Thursday.

23

&&

...HAZARD LEGEND...

*FLOODING*
Extreme...Widespread and significant flooding is likely.
Significant...Widespread flash flooding is likely
 and significant flooding is possible.
Elevated...Areas of flash flooding likely.
Limited...Localized flash flooding is possible.

...USEFUL WEATHER WEB PAGES (URLS)...

NWS JAN Home page...
   https://www.weather.gov/jan
Stay Aware, Stay Safe NWS JAN Briefing Page...
   https://www.weather.gov/jan/safe
Latest Weather Briefing...
   https://www.weather.gov/jan/weather_briefing

Find NWS JAN on Facebook...
   https://www.facebook.com/NWSJacksonMS
Follow NWS JAN on Twitter...
   @NWSJacksonMS
Follow NWS JAN on Youtube...
   https://www.youtube.com/user/NWSJacksonMiss

...ADDITIONAL URLS FOR FLOODING ISSUES...

Current Watches and Warnings...
   https://www.weather.gov/jan/safe_HeavyRain

Observed Precipitation Images...
   https://www.weather.gov/jan/precipmaps

River Forecast Center...
   https://www.weather.gov/lmrfc/
Significant River Flood Outlook...
   https://www.wpc.ncep.noaa.gov/nationalfloodoutlook/index.html
Day 1 through 3 Excessive Rainfall...
   https://www.wpc.ncep.noaa.gov/qpf/excess_rain.shtml
Excessive Rainfall Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpferd.html
Day 1 through 7 QPF...
   https://www.wpc.ncep.noaa.gov/qpf/qpf2.shtml
QPF Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpfpfd.html

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 7, 10:27 AM CSTRiver Flood WarningJANLeake4 days
Dec 7, 10:27 AM CSTRiver Flood WarningJANLawrence49 hr
Dec 7, 10:27 AM CSTRiver Flood WarningJANNeshoba3 days
Dec 7, 10:33 AM CSTRiver Flood WarningJANAttala, Holmes4 days
Dec 7, 10:33 AM CSTRiver Flood WarningJANMadison, Yazoo5 days
Dec 7, 10:33 AM CSTRiver Flood WarningJANHinds, Warren4 days
Dec 7, 10:35 AM CSTRiver Flood WarningJANCarroll, Leflore48 hr
Dec 7, 10:35 AM CSTRiver Flood WarningJANYazoo48 hr

Nearby

River Flood Warnings in Mississippi, 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.