Flash Flood Warning 15, NWS Huntsville, AL

151 
WGUS74 KHUN 110224
FFSHUN

Flash Flood Statement
National Weather Service Huntsville AL
924 PM CDT THU AUG 10 2017

ALC089-110515-
/O.CON.KHUN.FF.W.0015.000000T0000Z-170811T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Madison AL-
924 PM CDT THU AUG 10 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
CENTRAL MADISON COUNTY...

At 919 PM CDT, local law enforcement reported flash flooding in 
several locations east of downtown Huntsville, especially in the Dug 
Hill Road area, and along US Highway 431. Water is reported to be in 
homes in these areas. Heavy rain is building back across already-
impacted areas and will cause flash flooding to worsen!

Some locations that will experience flooding include...
Huntsville, Moores Mill, Redstone Arsenal, Meridianville, Hazel
Green, Owens Cross Roads, Marshall Space Flight Center, Alabama A And
M University, University Of Alabama In Huntsville and New Market.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3491 8640 3454 8640 3455 8655 3456 8655
      3458 8658 3458 8661 3455 8664 3455 8667
      3458 8668 3492 8668

$$

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596 
WGUS74 KHUN 110303
FFSHUN

Flash Flood Statement
National Weather Service Huntsville AL
1003 PM CDT THU AUG 10 2017

ALC089-110515-
/O.CON.KHUN.FF.W.0015.000000T0000Z-170811T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Madison AL-
1003 PM CDT THU AUG 10 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
CENTRAL MADISON COUNTY...

At 958 PM CDT, emergency management reported flash flooding in 
multiple locations across the City of Huntsville: near Lee High 
School and the Oak Park area, along University Drive near the campus 
of the University of Alabama in Huntsville, and near Dug Hill Road 
and US Highway 431. In these locations, multiple cars have been 
flooded, and water is entering homes.

Please do not travel in the Huntsville area unless you absolutely 
must! Serious flash flooding is ongoing this evening!

Some locations that will experience flooding include...
Huntsville, Moores Mill, Redstone Arsenal, Meridianville, Hazel
Green, Owens Cross Roads, Marshall Space Flight Center, Alabama A And
M University, University Of Alabama In Huntsville and New Market.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND, DON'T DROWN when encountering flooded roads! Most flood 
deaths occur in vehicles!

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3491 8640 3454 8640 3455 8655 3456 8655
      3458 8658 3458 8661 3455 8664 3455 8667
      3458 8668 3492 8668

$$

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520 
WGUS74 KHUN 110419
FFSHUN

Flash Flood Statement
National Weather Service Huntsville AL
1119 PM CDT THU AUG 10 2017

ALC089-110515-
/O.CON.KHUN.FF.W.0015.000000T0000Z-170811T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Madison AL-
1119 PM CDT THU AUG 10 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
CENTRAL MADISON COUNTY...

At 1116 PM CDT, emergency management reported flash flooding in 
multiple locations earlier this evening across the city of 
Huntsville: near Lee High School, along Oakwood Avenue in northeast 
Huntsville, along University Drive near the campus of the University 
of Alabama in Huntsville, and near Dug Hill Road and US Highway 431. 

While the rain has subsided across the Huntsville area, runoff will 
continue for the next several hours. Flash flooding will continue 
and move to new areas as the water runs off into larger creeks and 
streams.

Some locations that will experience flooding include...
Huntsville, Moores Mill, Redstone Arsenal, Meridianville, Hazel
Green, Owens Cross Roads, Marshall Space Flight Center, Alabama A And
M University, University Of Alabama In Huntsville and New Market.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3491 8640 3454 8640 3455 8655 3456 8655
      3458 8658 3458 8661 3455 8664 3455 8667
      3458 8668 3492 8668

$$

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Area Forecast Discussion...UPDATED
National Weather Service Huntsville AL
608 PM CDT Thu Aug 10 2017

.UPDATE...
For 00Z TAFS.

&&

.NEAR TERM...(Tonight)
Issued at 228 PM CDT Thu Aug 10 2017

A couple features and concerns will linger through tonight given the
continued progressive pattern. Heavy rainfall, which caused
widespread flooding across portion of northern and southeastern
Madison County, have primed the saturated grounds for potentially
more flooding if rainfall from today's activity again trains over
impacted areas. Flooded areas from early this morning will only need
around 0.25" or less from a shower/storm to cause more flooding
problems.

At the moment, scattered showers are being observed, mainly south of
the TN River from Colbert Co. through southern Marshall Co. With
both 12z soundings from OHX and BMX showing favorable instability,
expect shower and thunderstorm coverage to increase through the
afternoon. However, with the BMX profile similar to yesterday (same
with model profiles), not expecting enhanced coverage of
thunderstorms so only mentioned a slight chance for this
afternoon/tonight. Rain chances will again favor the southern and
eastern zones through this evening with a better shot of seeing a
thunderstorm east of I-65 and south of HWY 72. Regardless, any
scattered shower/storm could potentially have rain rates exceeding
1"/hr.

We're also watching the progression of an complex of thunderstorms
moving out of central MS. Hi-res guidance from HRRR, NMM, and ARW
show a few showers/storms moving through portions of the TN Valley
overnight tonight. As such, have kept chance PoPs in the forecast
through the night.

.SHORT TERM...(Friday through Saturday)
Issued at 228 PM CDT Thu Aug 10 2017

While the pattern will remain fairly active and progressive, we will
get somewhat of a transition beginning tomorrow as the warm front
shifts out of the area ahead of an approaching cold front swinging
into the Mid MS Valley. Ahead of this frontal system, a couple short
waves will continue to migrate around the southern fringe of the mid
level trough tomorrow. With the added addition of some shear, this
extra support will give us a better shot of seeing a stronger
thunderstorm or two tomorrow afternoon. While not expecting
widespread strong or severe storms, cannot rule out a few storms
producing gusts to 40-50mph with small hail. Additionally, any extra
rainfall with stress areas with previous flood impacts.

By Saturday, we'll still be watching the progression of the cold
front moving through the Ohio Valley. Current forecast slows, maybe
stalls, the front north of the CWA. With this scenario, we'll
continue to see much of the same with humid conditions and daily
scattered shower/thunderstorm chances.

With the lingering cloud cover and enhanced rain chances, expect
temps to continue to run a few degrees below normal during the
afternoon and range from the upper 60s to low 70s overnight.

.LONG TERM...(Sunday through Wednesday)
Issued at 228 PM CDT Thu Aug 10 2017

Majority of the extended forecast sounds like a broken record at
this rate and can probably be summed up in one sentence!

A series of disturbances will track through the base of a broad
upper-level trough and into the TN Valley through early next week. A
sfc front will stall to just to our north on Sunday and southerly
flow will bring additional moisture in. With PWATs hovering around 2
inches and multiple rounds of showers and thunderstorms on top of
soils receiving rainfall from the short term, will need to keep an
eye on additional flooding potential.

On Monday, an upper-level trough digs out of the Northern Plains and
a sfc front departing for the east coast will send a cold front into
the TN Valley on Tuesday. Will finally see a decrease in POP values
on Tuesday and Wednesday behind the front as some drier air filters
in and sfc high pressure tries to build southward into the region.

As for temps, daytime highs for the forecast period will continue to
be a little below normal reaching the mid/upper 80s. Overnight lows
will be near normal, around 70 degrees.

&&

.AVIATION...(For the 00Z TAFS through 00Z Friday evening)
Issued at 615 PM CDT Thu Aug 10 2017

Scattered heavy showers and a few thunderstorms will persist this
evening into the overnight hours, especially for areas near and east
of the KHSV vicinity. At this time, have kept the forecast VFR
through 10Z, but if showers or thunderstorms affect the terminal,
conditions could easily deteriorate to IFR due to low visibility in
heavy rainfall. Mist and possibly fog are expected to develop by 10Z
along with at least scattered clouds less than 010agl. It is
conceivable that ceilings could also develop and will assess that
further this evening. On Friday, more showers and thunderstorms
should develop by midday into the afternoon, and have included VCTS
at KHSV where the probability is a bit higher than KMSL.

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...NONE.
TN...NONE.
&&

NEAR TERM...Barron
SHORT TERM...Barron
LONG TERM...JMS
AVIATION...17

For more information please visit our website
at weather.gov/huntsville.

Hazardous Weather Outlook
National Weather Service Huntsville AL
435 PM CDT Thu Aug 10 2017

ALZ001>010-016-TNZ076-096-097-111100-
Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan-
Marshall-Jackson-De Kalb-Cullman-Moore-Lincoln-Franklin TN-
435 PM CDT Thu Aug 10 2017

This Hazardous Weather Outlook is for north Alabama and portions of
southern middle Tennessee.

.DAY ONE...Tonight...

Clusters of heavy showers and thunderstorms will continue this
evening into the overnight, especially along and east of the I-65
corridor. The thunderstorms will produce very heavy downpours.
Localized flash flooding may develop quickly in some areas that
received heavy rainfall early this morning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

Scattered to numerous thunderstorms will continue into the weekend
period through the early part of next week as another weak frontal
boundary and several disturbances approach the area from the
northwest. The stronger storms will be capable of gusty outflow
winds and very heavy rainfall. There is the potential for flash
flooding especially over areas that receive multiple episodes of
heavy rainfall and thunderstorms.

Thunderstorms will then begin to diminish Tuesday and Wednesday as
the front moves south of the area.

.SPOTTER CALL TO ACTION STATEMENT...

Activation of storm spotters and emergency management personnel is
not anticipated at this time.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
418 PM CDT THU AUG 10 2017

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

0357 PM     FLOOD            1 SE MOORES MILL        34.85N 86.52W
08/10/2017                   MADISON            AL   LAW ENFORCEMENT

            FLOODING WAS OCCURING ON MOORES MILL ROAD AT
            JACOBS FARM ROAD ALONG THE BRIAR FORK OF THE
            FLINT RIVER.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
604 PM CDT THU AUG 10 2017

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

0603 PM     FLOOD            4 E HAZEL GREEN         34.92N 86.50W
08/10/2017                   MADISON            AL   EMERGENCY MNGR

            BILLY D HARBIN ROAD AT WALKER LANE CLOSED.
            PART OF ROADWAY WASHED OUT.

&&

BCC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
636 PM CDT THU AUG 10 2017

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

0500 PM     HEAVY RAIN       2 SSE OWENS CROSSROADS  34.56N 86.45W
08/10/2017  E5.70 INCH       MADISON            AL   PUBLIC

            EVENT TOTAL NEAR THE CORNER OF OLD HWY 431
            AND BROCKWAY RD.

0500 PM     HEAVY RAIN       3 ENE OWENS CROSSROADS  34.60N 86.41W
08/10/2017  E6.50 INCH       MADISON            AL   FIRE DEPT/RESCUE

            EVENT TOTAL AT OWENS CROSSROADS VFD.

&&

Special Weather Statement
National Weather Service Huntsville AL
724 PM CDT THU AUG 10 2017

ALZ006-110115-
Madison AL-
724 PM CDT THU AUG 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MADISON COUNTY UNTIL 815
PM CDT...

At 722 PM CDT, Doppler radar was tracking a strong thunderstorm over
downtown Huntsville. This storm was nearly stationary.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Huntsville, Redstone Arsenal, Owens Cross Roads, Gurley, Alabama A
And M University, Monte Sano, Maysville, Hampton Cove, Brownsboro
and Ryland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Very heavy rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3482 8633 3481 8635 3479 8633 3479 8634
      3475 8634 3473 8636 3463 8636 3463 8635
      3456 8635 3461 8661 3479 8661 3483 8633
TIME...MOT...LOC 0022Z 271DEG 4KT 3471 8653

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