Alert archive / Mississippi / River Flood Warnings in 2020

River Flood Warning 156, NWS Jackson, MS

April 19, 2020Sunflower County, Mississippi

NWS Jackson, MS issued this river flood warning at Apr 19, 2020, 8:59 PM CDT for Sunflower County, Mississippi. It was in force for 21 days.

The area

The counties it named.

The facts

Issued
Apr 19, 2020, 8:59 PM CDT (01:59 UTC)
Expired
May 10, 2020, 8:59 PM CDT
In force
21 days
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
Minor

County Sunflower County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 157 km from the middle of the area, began a volume at 02:00 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 Big Sunflower River at Sunflower (SUNM6).

Action stage
20 ft
Minor stage
21 ft
Moderate stage
25 ft
Major stage
28 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07288500, 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 Jackson, MS wrote its last area forecast discussion before this river flood warning went out at Apr 19, 6:58 PM CDT, 2 hours 1 minute earlier.

Area forecast discussion, Apr 19, 6:58 PM CDT, 2 hours 1 minute before
Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
658 PM CDT Sun Apr 19 2020

...SEVERE STORMS REMAIN LIKELY ACROSS MUCH OF THE ARKLAMISS THROUGH
TONIGHT...

.UPDATE...
Updated for 00Z aviation discussion

&&

.AVIATION...
00Z TAF discussion:
Numerous TSRA were observed at 2330Z south of I-20 while RA was
observed north of I-20. This was leading to a mix of IFR and LIFR
conditions across the area. Although the rain and thunderstorms
will move east of the area after midnight as a cold front moves
through, IFR cigs will continue to prevail through 15Z before
gradually improving to VFR into the afternoon. VFR conditions are
expected areawide by 20z. /22/

&&

.DISCUSSION...
Tonight through Saturday...The threat for severe weather and flash
flooding will be ongoing across a good portion of the forecast area
for the remainder of this afternoon and into the first half of the
tonight period.  Thus, a "Tornado Watch" remains in effect until 7
PM and a "Flash Flood Watch" in effect until 1 AM Monday. As an
upper level trough drives a strong cold front east through the
region from late this afternoon into tonight, ample instability
(particularly across locales along and south of the Interstate 20
corridor), coupled with strong wind shear, and steep mid-level lapse
rates will maintain this threat into tonight.

Damaging wind gusts, large hail, and tornadoes will remain possible
during this time. Additionally, torrential downpours from storms
training across the same locations, will result in localized flash
flooding across portions of the area, along with an increased threat
of river flooding.  Some light showers will linger behind the front
a couple of hours past midnight, but as the overnight hours progress
activity will exit east and out of the forecast area, with high
pressure building in from the west.

Quiet weather, along with slightly cooler drier conditions, will
exist across the region Monday into Tuesday.  The high will slide
further east of the region on Wednesday resulting in a return in
southerly flow.  This, as the pressure gradient tightens over the
region in response to a deepening and developing storm system
approaching from the west, will cause increased moisture return
across the CWA through Wednesday night.

Currently, it's during this Wednesday afternoon through Thursday
timeframe, that perhaps another bout of severe weather may be
possible across the forecast area, along with perhaps some heavy
rain potential.  Currently, models continue to differ in their exact
track and timing of this system. Therefore, confidence in
introducing a threat of severe weather into the HWO currently
remains too low.

Showers and storms currently look to exit the region through the
course of Thursday.  High pressure again builds into the region from
the west.  At a minimum, the first half of Friday looks to remain
quiet.  However, rain chances could again be on the increase Friday
night into Saturday as another system potentially swings east into
the region. /19/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       58  74  52  79 /  93   0   0   0
Meridian      58  75  51  79 / 100   0   0   0
Vicksburg     59  73  54  79 /  87   0   0   0
Hattiesburg   61  78  54  82 /  94   0   0   0
Natchez       59  74  55  79 /  80   0   0   0
Greenville    56  71  53  76 /  92   0   0   0
Greenwood     56  72  52  76 /  95   0   0   0

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Flash Flood Watch until 1 AM CDT Monday for MSZ027>033-035>059.

LA...Flash Flood Watch until 1 AM CDT Monday for LAZ009-016-025.

AR...None.

&&

19/22/GG
Hazardous weather outlook, Apr 19, 3:32 PM CDT, 5 hours 27 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
332 PM CDT Sun Apr 19 2020

ARZ074-075-MSZ019-025-034-201000-
Ashley-Chicot-Sunflower-Leflore-Washington-
332 PM CDT Sun Apr 19 2020

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

.DAY ONE...Tonight and Monday...

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Limited
TIMING...The rest of this afternoon through tonight

Severe thunderstorms capable of producing damaging winds of
60 mph and quarter to golf ball size hail are possible.

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

Localized flash flooding is possible, particularly in low lying
and urban areas. Minor river flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Monday night through Saturday...

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon through tonight.

MSZ018-026-201000-
Bolivar-Grenada-
332 PM CDT Sun Apr 19 2020

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

.DAY ONE...Tonight and Monday...

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Limited
TIMING...The rest of this afternoon through tonight

Isolated severe thunderstorms capable of producing damaging wind
gusts and hail up to quarter size are possible.

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

Localized flash flooding is possible, particularly in low lying
and urban areas. Minor river flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Monday night through Saturday...

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon through tonight.

MSZ027-028-031>033-035-201000-
Carroll-Montgomery-Lowndes-Choctaw-Oktibbeha-Humphreys-
332 PM CDT Sun Apr 19 2020

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

.DAY ONE...Tonight and Monday...

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

Severe thunderstorms capable of producing damaging winds of
60 mph and quarter to golf ball size hail are possible.

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

Areas of flash flooding are likely, and some roads could be
flooded or closed as a result. Some structures may be potentially
threatened by high water.  River flooding is possible, with
ongoing river flooding potentially worsened.

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

.DAYS TWO THROUGH SEVEN...Monday night through Saturday...

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon through tonight.

MSZ029-030-201000-
Webster-Clay-
332 PM CDT Sun Apr 19 2020

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

.DAY ONE...Tonight and Monday...

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

Isolated severe thunderstorms capable of producing damaging wind
gusts and hail up to quarter size are possible.

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

Areas of flash flooding are likely, and some roads could be
flooded or closed as a result. Some structures may be potentially
threatened by high water.  River flooding is possible, with
ongoing river flooding potentially worsened.

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

.DAYS TWO THROUGH SEVEN...Monday night through Saturday...

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon through tonight.

LAZ007-008-015-201000-
Morehouse-West Carroll-Richland-
332 PM CDT Sun Apr 19 2020

This hazardous weather outlook is for portions of northeast
Louisiana.

.DAY ONE...Tonight and Monday...

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Limited
TIMING...The rest of this afternoon through tonight

Severe thunderstorms are likely and tornadoes are possible.  Some
thunderstorms may produce damaging winds up to 70 mph, and hail
up to tennis ball size.

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

Localized flash flooding is possible, particularly in low lying
and urban areas. Minor river flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Monday night through Saturday...

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon through tonight.

LAZ009-MSZ036>041-201000-
East Carroll-Holmes-Attala-Winston-Noxubee-Issaquena-Sharkey-
332 PM CDT Sun Apr 19 2020

This hazardous weather outlook is for portions of northeast
Louisiana, and central Mississippi.

.DAY ONE...Tonight and Monday...

SEVERE THUNDERSTORMS
THREAT...Enhanced
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

Severe thunderstorms are likely and tornadoes are possible.  Some
thunderstorms may produce damaging winds up to 70 mph, and hail
up to tennis ball size.

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

Areas of flash flooding are likely, and some roads could be
flooded or closed as a result. Some structures may be potentially
threatened by high water.  River flooding is possible, with
ongoing river flooding potentially worsened.

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

.DAYS TWO THROUGH SEVEN...Monday night through Saturday...

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon through tonight.

LAZ016-025-MSZ042>059-065-066-201000-
Madison LA-Tensas-Yazoo-Madison MS-Leake-Neshoba-Kemper-Warren-
Hinds-Rankin-Scott-Newton-Lauderdale-Claiborne-Copiah-Simpson-
Smith-Jasper-Clarke-Jefferson-Covington-Jones-
332 PM CDT Sun Apr 19 2020

This hazardous weather outlook is for portions of northeast
Louisiana, and central Mississippi.

.DAY ONE...Tonight and Monday...

SEVERE THUNDERSTORMS
THREAT...Moderate
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Elevated
TIMING...The rest of this afternoon through tonight

Significant severe thunderstorms and tornadoes are likely, with
some strong tornadoes possible. Some thunderstorms could also
produce damaging winds of 70 mph and large hail up to tennis ball
size.

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

Areas of flash flooding are likely, and some roads could be
flooded or closed as a result. Some structures may be potentially
threatened by high water.  River flooding is possible, with
ongoing river flooding potentially worsened.

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

.DAYS TWO THROUGH SEVEN...Monday night through Saturday...

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon through tonight.

LAZ023-024-026-MSZ060>064-072>074-201000-
Franklin LA-Catahoula-Concordia-Adams-Franklin MS-Lincoln-
Lawrence-Jefferson Davis-Marion-Lamar-Forrest-
332 PM CDT Sun Apr 19 2020

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

.DAY ONE...Tonight and Monday...

SEVERE THUNDERSTORMS
THREAT...Moderate
TIMING...The rest of this afternoon through tonight

FLOODING
THREAT...Limited
TIMING...The rest of this afternoon through tonight

Significant severe thunderstorms and tornadoes are likely, with
some strong tornadoes possible. Some thunderstorms could also
produce damaging winds of 70 mph and large hail up to tennis ball
size.

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

Localized flash flooding is possible, particularly in low lying
and urban areas. Minor river flooding is possible.

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

.DAYS TWO THROUGH SEVEN...Monday night through Saturday...

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region remainder
of the afternoon through tonight.

19

&&

...HAZARD LEGEND...

*SEVERE THUNDERSTORMS*
High...Significant severe thunderstorms and tornadoes are
 likely with strong or violent tornadoes possible.
Moderate...Significant severe thunderstorms and tornadoes are
 likely with strong tornadoes possible.
Enhanced...Severe thunderstorms are likely and tornadoes are
 possible.
Slight...Severe thunderstorms and tornadoes are possible.
Marginal...Isolated severe thunderstorms are possible.

*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 SEVERE WEATHER ISSUES...

Storm Prediction Center (SPC)...
   https://www.spc.noaa.gov/
Meso Analysis...
   https://www.spc.noaa.gov/exper/mesoanalysis/
Day 1 through 3 Outlooks...
   https://www.spc.noaa.gov/products/outlook/
Storm Reports...
   https://www.spc.noaa.gov/climo/online/
...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

In the hours before

Local storm report, Apr 19, 8:34 PM CDT, 25 minutes before
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Local storm report, Apr 19, 8:35 PM CDT, 24 minutes before
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Local storm report, Apr 19, 8:41 PM CDT, 18 minutes before
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Special weather statement, Apr 19, 8:51 PM CDT, 8 minutes before
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Local storm report, Apr 19, 8:55 PM CDT, 4 minutes before
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Local storm report, Apr 19, 8:57 PM CDT, 2 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:40 PM CDTSevere Thunderstorm WarningJANMarion35 min
Apr 19, 7:44 PM CDTTornado Warning Tornado observedConsiderable damage threatJANForrest, Lamar31 min
Apr 19, 7:45 PM CDTSevere Thunderstorm WarningJANForrest, Lamar30 min
Apr 19, 8:04 PM CDTFlash Flood WarningJANForrest, Lamar, Marion3 hr
Apr 19, 8:51 PM CDTSpecial Weather StatementJANForrest24 min

Nearby

River Flood Warnings in Mississippi, 2020Every river flood warning in 2020

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.