Flash Flood Warning 8, NWS Springfield, MO

872 
WGUS73 KSGF 252024
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
324 PM CDT Thu Apr 25 2024

MOC077-260000-
/O.CON.KSGF.FF.W.0008.000000T0000Z-240426T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene MO-
324 PM CDT Thu Apr 25 2024

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING 
FOR GREENE COUNTY...

At 324 PM CDT, The public reported thunderstorms producing heavy 
rain across the warned area. Between 1 and 3 inches of rain have 
fallen. Additional rainfall amounts of 1 to 2 inches are possible in 
the warned area. Flash flooding is ongoing or expected to begin 
shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Public reported. Received reports from the Galloway area
         in Springfield regarding flooding on the roads.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Springfield, Republic, Battlefield, Strafford, Willard, Ash Grove, 
  Fair Grove, Walnut Grove, Brookline, Glidewell, Ebenezer, Cave 
  Springs, Sacville, Galloway, Bois D'arc, Turners and Bassville.

This includes the following low water crossings...
  Wilson Creek at Farm Road 156, Sims Branch at Highway CC, Wilson's 
  Creek at Farm Road 150, Clear Creek at Farm Road 87, Sac River at 
  County Road 1247, Little Pomme De Terre River at Highway CC and 
  Wilson Creek at Farm Road 146.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3709 9307 3710 9361 3728 9361 3728 9362
      3743 9362 3741 9308 3727 9308 3727 9306

FLASH FLOOD...OBSERVED

$$

Soria

616 
WGUS73 KSGF 252358
FFSSGF

Flash Flood Statement
National Weather Service Springfield MO
658 PM CDT Thu Apr 25 2024

MOC077-260008-
/O.EXP.KSGF.FF.W.0008.000000T0000Z-240426T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Greene MO-
658 PM CDT Thu Apr 25 2024

...FLASH FLOOD WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING FOR 
GREENE COUNTY...

Flood waters have receded. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

&&

LAT...LON 3709 9307 3710 9361 3728 9361 3728 9362
      3743 9362 3741 9308 3727 9308 3727 9306

$$

GH

Area Forecast Discussion
National Weather Service Springfield MO
1226 PM CDT Thu Apr 25 2024

.KEY MESSAGES...

- Multiple rounds of moderate to heavy rainfall and some storms
  today and tonight, bringing a slight risk of flooding in
  southwest Missouri/southeast Kansas, especially along and
  south of Hwy 160/60.

- Risk of severe storms Friday through Sunday night as multiple
  rounds of storms move through the region. Greatest severe
  threat appears to be Saturday night.

- Heavy rain and the potential for flooding will continue to
  accompany the active weather period through this weekend.

&&

.SHORT TERM /THROUGH FRIDAY NIGHT/...
Issued at 141 AM CDT Thu Apr 25 2024

Current water vapor imagery clearly depicts a potent shortwave
trough entering the SW CONUS with a plume of cirrus
overspreading the southern Plains. A ridge axis is positioned
here up through ND. A longwave trough is also situated over the
eastern CONUS. This synoptic setup is bringing NW'ly flow aloft
over our region. At the surface, lee cyclogenesis across the
Colorado front range is underway with a warm front extending
from CO southeast through OK and AR. A diffuse cold front has
stalled across our CWA and is generally dissipating, leaving
lows this morning in the mid-50s along the MO/KS border and in
the mid-40s toward central MO.

Atop this front in the mid-levels, a ridge axis is displaced
eastward from the upper-level ridge axis. The mid-level ridge
axis is over the "Chicken Chef States" (aka, LA up through MN).
Subtle shortwave energy and SW'ly flow at 700 mb is just to the
west of this feature in KS/CO. At the inflection point of this
features, strong warm-air advection is progged across the
central Plains. In east KS/west MO at the eastward nose of the
WAA and associated isentropic upglide, scattered showers have
developed and will continue to increase in coverage as nocturnal
dynamic forcing upticks.

Multiple rounds of moderate to heavy rainfall today and tonight:

Bottom line of the forecast for today and tonight is that many,
if not all, locations will see rainfall today. Pinpointing the
location of the higher amounts has been, quite frankly, a
nightmare with model guidance still varying from model-to-model
and run-to-run. The latest and greatest thoughts, however, gives
two main rounds of more widespread moderate to heavy rainfall.
The first round will develop at the nose of mid-level WAA in NE
OK between 6-9AM. This area of rain will impact extreme SW MO
(generally along and south of Hwy 60) between 9AM and 2PM. After
this round exits, a pseudo-MCS riding the surface warm front is
forecast to dive SE into west MO around 3-5PM. This second area
of heavier rainfall would impact areas mainly along the Hwy 160
to Hwy 60 corridor in the 4-9PM timeframe. In between these
rounds, rain will still persist across much of the area, but
consist of more scattered, light, and on and off showers.
Embedded thunderstorms will be possible with all rounds of rain
as the MUCAPE gradient lines up with the precipitation, but no
severe weather is expected for this timeframe. Although, there
may be some higher wind gusts with the second round of rain with
the pseudo-MCS.

Rainfall amounts will largely depend on where exactly these
embedded thunderstorms within the rounds of heavier rainfall
line up. Again, position and timing of these rounds have been
shifting, but the 00Z HREF LPMM precipitation amounts are coming
in with rather impressive values. The two main corridors
associated with the two aforementioned rounds of heavier
rainfall are south of I-44 and west of Hwy 65, and along the Hwy
160 corridor. HREF LPMM brings QPF totals up to 1.5-3" in these
areas with localized values between 4-7 inches. And that is a
24-hour total through 11 PM Thursday. While the localized
values are certainly a low confidence higher-end scenario, it
does show a signal for localized areas of heavy rainfall and
perhaps some flooding in SW MO. The WPC has also outlined this
area in a slight (2/4) risk for excessive rainfall. Outside of
these areas, rainfall totals will range from 0.5-1.5" with lower
values toward central MO, further from the warm front.

With widespread rain and cloud cover, and the warm front staying
SW of the area, highs will be around 60 F and lows will be in
the mid-50s.

Slight risk for severe storms Friday into Friday night:

The mid- and upper-level shortwave will become compact and
intensify as it lifts NE through the central Plains overnight
Friday. N-S oriented remnant convection from storms in the
central Plains will move through the area Friday morning before
stalling across central MO during the early afternoon. With
upper-level divergence/diffluence within the right-entrance
region of a jet stalling over MO, and a 40-60 kt LLJ parallel to
the forcing axis, the stalled showers and thunderstorms in
central MO will likely train. This will bring another slight
(2/4) risk for excessive rainfall and flooding across our CWA
during the day Friday, although the QPF footprint is lower than
for today (Thursday). Rain totals from this training convection
look to be in the 0.5-1" range, but HREF suggests a 40-60%
chance that some areas will reach 1-1.5" with a 20-30% chance of
localized values higher than 1.5". These chances are generally
for our entire CWA.

The focus then shifts to a severe threat Friday evening. As the
compact and energetic shortwave lifts into NE/IA, the associated
surface low will do the same, advecting mid-60s dewpoints across
our area, especially along the MO/KS border. Highs will also
thus be warmer in the lower 70s. A dryline will setup somewhere
in extreme east KS. The moisture will bring >1000 J/kg of
SBCAPE across our entire forecast area with a narrow corridor of
2000-2500 J/kg just east of the dryline along the MO/KS border.
Additionally, 60-70 kt mid-level flow associated with the
compact shortwave will create 0-6 km bulk shear of 50-60 kts.
Needless to say, these parameters depict a primed sector for
severe storms...if they can develop. The ongoing training
convection mentioned earlier brings into question the amount of
surface destabilization for storms to successfully initiate.
Additionally, the most favorable synoptic ascent will be in NW
MO/SW IA. With the surface cold front lagging behind in NW KS by
Friday evening, the main forcing mechanism for storms will be
the dryline in east KS. Dryline forcing will be subtle, making
it difficult for storms to initiate, especially with CAMs
suggesting some sort of capping inversion just east of the
dryline.

Nevertheless, subtle forcing along the dryline could be enough
for isolated storm development along the MO/KS border. Any storm
that does initiate will be in a potent environment for them to
become severe with all hazards possible. Forecast soundings
along the dryline depict enlarged, curved hodographs boasting
200-300 m2/s2 0-1 km SRH owing to a cranking 40-60 kt LLJ
increasing low- level shear to 30-40 kts. Additionally, a
saturated profile is noted up to 700 mb with 6-7 C/km lapse
rates overtop. This will support a tornado and hail threat,
perhaps significant, with any storm that can form and stay
surface-based before sunset. Wind gusts up to 60 mph will also
be possible. Once again, the uncertainty is in initiation of
storms. Early CAMs only have around half initiating any storms
in our area, so trends will need to be monitored.

Storms should generally diminish after sunset with lows in the
mid-60s (near record high minimum).

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
Issued at 141 AM CDT Thu Apr 25 2024

Slight to Enhanced risk for severe weather Saturday night:

Ensemble clusters are actually in impressive agreement for the
synoptic setup in the medium range forecast. Another potent
impulse of shortwave energy will lift through the central Plains
Saturday, once again interacting with a slightly more muggy
warm/moist sector characterized by highs of near 80 and
dewpoints in the upper 60s. A surface low and sharp dryline will
develop in central KS/OK, focusing storm development in that
area. While this will keep the main severe threat west of our
area, LREF probs give our area along the MO/KS border a 30%
chance for 0-6 km bulk shear >40 kts and SBCAPE values >1000
J/kg. Chances increase to 40-50% for values of >500 J/kg.

This would be sufficient for severe weather if the storms in
OK/KS persisted as they traveled eastward overnight. Some medium
range guidance indeed suggests storms persisting to along the
MO/KS border. The SPC accordingly has our KS counties in an
Enhanced (3/5) risk for severe weather with the western half of
our CWA in a Slight (2/5) risk. With medium range guidance
suggesting sufficient CAPE and very curved hodographs from
another intense LLJ and mid-level jet max, all hazards would be
possible with these storms. It is important to mention, with the
current timing, this would be an overnight severe threat,
generally after midnight.

Heavy rain and the potential for flooding Saturday night:

Additionally, the upper-level wave is expected to undergo rapid
strengthening Saturday and overlap a meridional jet streak over
our area with right-entrance dynamics forcing synoptic ascent.
With mean flow largely north-south, parallel to the surface
boundaries, training of storms will again be likely. With
moisture also reaching the 99th percentile according to PWATs,
excessive rainfall and flooding will again be a threat Saturday
night, especially in our western CWA where the WPC has a slight
risk for excessive rainfall coinciding with the main severe
threat.

Slight risk for severe weather and excessive rainfall Sunday:

The system will continue its slow trek northeastward, and the
upper-level and surface features will be in a position for
severe weather to once again be possible Sunday. The SPC has a
15% out for our entire CWA this day. Once again, even though
synoptic setup is in agreement, this far out there is great
uncertainty in the location and longevity in convection from
Saturday's severe threat which would determine the location and
magnitude of Sunday's threat. So details will need to be ironed
out, but the environment will be supportive for severe weather
across our CWA Sunday.

And again, the synoptic setup will favor training storms, making
excessive rainfall and flooding a threat. The WPC mentions that
with the multi-day threat for excessive rainfall, a moderate
risk may be needed for our area depending on the level of
saturation from the previous rounds of storms, but for now, our
eastern half of the CWA is in a slight risk for excessive
rainfall and flooding.

After some cooler temps with highs in the mid-70s and lows in
the mid-50s Sunday and Monday, temperatures will warm into the
lower 80s for the rest of the work week with lows also in the
lower 60s.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1225 PM CDT Thu Apr 25 2024

Showers and storms continue to track east across the area early
this afternoon and will continue to track east through the rest
of the afternoons. Coverage should start to decrease late this
afternoon into this evening. Some isolated convection will
remain possible this evening but not all locations will be
affected. Additional more widespread showers and storms will
move into the area late tonight into Friday morning. Ceilings
will continue to lower into the MVFR and IFR levels this
afternoon and continue through tonight. Gusty south to
southeasterly winds will develop this afternoon and continue
into Friday.

&&

.CLIMATE...
Issued at 1225 PM CDT Thu Apr 25 2024

Record High Minimum Temperatures:

April 27:
KSGF: 67/1899

April 28:
KSGF: 68/1896

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
KS...None.
MO...None.

&&

SHORT TERM...Price
LONG TERM...Price
AVIATION...Wise
CLIMATE...Wise

Hazardous Weather Outlook
National Weather Service Springfield MO
207 PM CDT Thu Apr 25 2024

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-261915-
Bourbon-Crawford-Cherokee-Benton-Morgan-Miller-Maries-Vernon-
St. Clair-Hickory-Camden-Pulaski-Phelps-Barton-Cedar-Polk-Dallas-
Laclede-Texas-Dent-Jasper-Dade-Greene-Webster-Wright-Newton-
Lawrence-Christian-Douglas-Howell-Shannon-McDonald-Barry-Stone-
Taney-Ozark-Oregon-
207 PM CDT Thu Apr 25 2024

This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Limited hail risk.
  Limited thunderstorm wind damage risk.
  Elevated lightning risk.
  Elevated excessive rainfall risk
  Limited non thunderstorm wind risk.

DISCUSSION...

Showers and few thunderstorms will continue to move across
portions of the area this afternoon into early this evening mainly
along and north of Highway 60. Additional isolated storms will be
possible later this evening into the early overnight hours. Then a
line of storms may move east into extreme southeastern Kansas and
far southwestern Missouri late tonight into Friday morning.

Locally heavy rainfall and localized flooding will continue to be
be possible into early this evening. Damaging wind gusts and hail
up to the size of quarters will be possible across extreme
southeastern Kansas and far western Missouri late night into
Friday morning.

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

A line of storms may be ongoing across the area Friday morning.
Damaging wind gusts will be possible with this activity. Multiple
rounds of storms will continue to track across the region at
times from Friday afternoon into Sunday night. There will be the
potential for severe weather with the storms Friday through the
weekend. There is currently a Slight (2/5) risk for severe weather
Friday and Saturday with an Enhanced (3/5) risk for our Kansas
counties Saturday. All hazards will be possible each severe day.

Heavy rainfall will also be possible with the storms and could
lead to a localized flooding risk through the weekend. Portions
of our CWA are in a Slight (2/4) risk for excessive rainfall and
flooding through Sunday.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be needed through tonight.

&&

More detailed information can be accessed at:
http://www.weather.gov/sgf/dsspacket

This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf

Wise

Preliminary Local Storm Report
National Weather Service Springfield MO
1127 AM CDT Thu Apr 25 2024

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

1115 AM     Rain             2 NE Carthage           37.20N 94.27W
04/25/2024  M5.39 Inch       Jasper             MO   Mesonet

            Mesonet station FW6623 Carthage 6 hour
            total.

&&

TEO

Preliminary Local Storm Report
National Weather Service Springfield MO
1148 AM CDT Thu Apr 25 2024

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

1140 AM     Rain             2 WNW Hoberg            37.08N 93.88W
04/25/2024  M2.72 Inch       Lawrence           MO   Mesonet

            Mesonet station MOA21 Mt. Vernon 6 hour
            total.

&&

TEO

Preliminary Local Storm Report
National Weather Service Springfield MO
1209 PM CDT Thu Apr 25 2024

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

1200 PM     Rain             2 WNW Hoberg            37.08N 93.88W
04/25/2024  M3.44 Inch       Lawrence           MO   Mesonet

            Mesonet station MOA21 Mt. Vernon past 6 hour
            total. Past three hour total is 3.10 inch.

&&

TEO

Preliminary Local Storm Report
National Weather Service Springfield MO
1256 PM CDT Thu Apr 25 2024

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

1255 PM     Flash Flood      1 SSW Mount Vernon      37.09N 93.82W
04/25/2024                   Lawrence           MO   Public

            picture and video of flash flooding.

&&

TEO

Preliminary Local Storm Report
National Weather Service Springfield MO
102 PM CDT Thu Apr 25 2024

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

1255 PM     Rain             Mount Vernon            37.10N 93.82W
04/25/2024  M4.30 Inch       Lawrence           MO   Public

            Via social media. Still raining hard.
            Flooding around town.

&&

TEO

Preliminary Local Storm Report
National Weather Service Springfield MO
107 PM CDT Thu Apr 25 2024

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

0100 PM     Flash Flood      1 ESE Mount Vernon      37.10N 93.80W
04/25/2024                   Lawrence           MO   911 Call Center

            Two water rescues in the Mt Vernon area. One
            off off I44 and one near Alice and Landrum.

&&

TEO