Flash Flood Warning 36, NWS Shreveport, LA

770 
WGUS74 KSHV 220630
FFSSHV

Flash Flood Statement
National Weather Service Shreveport LA
130 AM CDT Mon Jun 22 2020

ARC057-061-099-133-220830-
/O.CON.KSHV.FF.W.0036.000000T0000Z-200622T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hempstead AR-Howard AR-Nevada AR-Sevier AR-
130 AM CDT Mon Jun 22 2020

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT EARLY THIS 
MORNING FOR NORTHEASTERN HEMPSTEAD, SOUTHEASTERN HOWARD, CENTRAL 
NEVADA AND EASTERN SEVIER COUNTIES...

At 130 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 4 inches of rain have 
fallen. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Doppler radar.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Nashville, Mineral Springs, Dierks, Blevins, Rosston, Tollette, 
  Willisville, Bluff City, Center Point, McCaskill, Ozan, Cale, 
  Boughton, Mount Moriah, Morris, Browntown, Silver Ridge, Provo, 
  Waterloo and Lebanon.

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.

Excessive runoff from heavy rainfall will cause flooding of small 
creeks and streams, country roads, farmland, and other low lying 
spots.

Please report flooding to your local law enforcement agency when you 
can do so safely.

&&

LAT...LON 3419 9406 3416 9400 3399 9386 3394 9353
      3396 9337 3390 9330 3384 9329 3380 9318
      3382 9314 3378 9310 3353 9311 3345 9333
      3384 9335 3386 9345 3381 9407 3391 9409
      3410 9421 3416 9418

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-3 INCHES IN 3 HOURS 

$$

24

916 
WGUS54 KSHV 220815
FFWSHV
ARC057-061-099-221000-
/O.EXT.KSHV.FF.W.0036.000000T0000Z-200622T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Shreveport LA
315 AM CDT Mon Jun 22 2020

The National Weather Service in Shreveport has extended the

* Flash Flood Warning for...
  Northeastern Hempstead County in southwestern Arkansas...
  Southeastern Howard County in southwestern Arkansas...
  Central Nevada County in southwestern Arkansas...

* Until 500 AM CDT.

* At 315 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Nashville, Mineral Springs, Blevins, Rosston, Tollette, 
  Willisville, Bluff City, McCaskill, Ozan, Cale, Boughton, Mount 
  Moriah, Morris, Waterloo and Young.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report flooding to your local law enforcement agency when you 
can do so safely.

&&

LAT...LON 3399 9386 3394 9353 3396 9338 3390 9330
      3384 9329 3380 9318 3382 9314 3378 9310
      3353 9311 3345 9333 3384 9335 3386 9345
      3382 9398 3391 9404 3397 9400

FLASH FLOOD...RADAR INDICATED

$$

12

915 
WGUS74 KSHV 220815
FFSSHV

Flash Flood Statement
National Weather Service Shreveport LA
315 AM CDT Mon Jun 22 2020

ARC133-220825-
/O.CAN.KSHV.FF.W.0036.000000T0000Z-200622T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sevier AR-
315 AM CDT Mon Jun 22 2020

...FLASH FLOOD WARNING IS CANCELLED FOR EASTERN SEVIER COUNTY...

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

LAT...LON 3399 9386 3394 9353 3396 9338 3390 9330
      3384 9329 3380 9318 3382 9314 3378 9310
      3353 9311 3345 9333 3384 9335 3386 9345
      3382 9398 3391 9404 3397 9400

$$

12

Area Forecast Discussion
National Weather Service Shreveport LA
1220 AM CDT Mon Jun 22 2020

.AVIATION...

Convection ongoing across SW AR to gradually push ewd, likely
bringing minimal impact to terminals this morning. However,
complex over SW OK to race sewd tonight, and may begin impacting
KTXK around sunrise. Uncertainty precludes mention of more than
VCTS attm, but will amd with FM groups if the need appears prior
to the 12Z package. Low cigs appear likely to develop around
sunrise at many sites as well. Cigs to eventually lift into the
VFR category by midday. Convection may continue sewd today,
perhaps impacting other terminals, so VCTS included elsewhere.
/12/

&&

.PREV DISCUSSION... /issued 1013 PM CDT Sun Jun 21 2020/

SHORT TERM.../Tonight/

The evening mosaic radar imagery continues to indicate a broad MCV
spinning between FSM and RUE, with convection having become
enhanced across the very moist and unstable environment to its SSE
over the Nrn sections of SW and SCntrl AR, where PW's near 2" and
MLCapes of 1500-2000 J/KG persist. With the air mass becoming
stabilized with the increasing convection, the primary threat
tonight will focus to a heavy rain and potential flood threat, as
a 20-30kt SWrly low level flow continues to feed into the MCV as
drifts slowly E overnight. Whereas the 12Z and 00Z global models
have been underdoing the QPF thus far, a few of the latest CAMs
including the HRRR, ARW, and RAP suggest that widespread 2-5+ inch
QPF are likely across portions of SW and SCntrl AR, although each
vary in the exact location of the higher totals. The highest
confidence though for seeing the potential for flash flooding is
only across a small area from Howard to Hempstead and Nevada
Counties, as well as Union County, but these areas have remained
drier than normal over the last month and should be able to take
most of these rains and thus, a Flash Flood Watch will not be
issued with the forecast update.

Also of note is the ongoing MCS across NW OK, which is quickly
advancing SE across Wrn into Ncntrl OK attm, with the 00Z CAMs
suggesting that this complex will hold together (although in a
weakened state) mainly NW of I-30 into extreme NE TX/SE
OK/adjacent SW AR by and just prior to 12Z. With this complex
moving across much of Cntrl and Ern OK overnight which remains
more stable than areas to the SSW over Srn OK/NW TX, this MCS
should weaken as it approaches the region, and should remain
progressive enough such that the flash flood potential over
McCurtain County should be reduced in wake of the widespread 2.5-5
inches of rain that fell earlier today.

For the evening update, did raise pops considerably to
categorical/likely over the Nrn sections of SW AR, while also
beefing up pops to likely/high chance farther WNW after 06Z for SE
OK/extreme NE TX. Given the uncertainties of the NW OK MCS late
tonight, did not make any changes to the pops Monday, although a
cold pool/outflow boundaries from this convection should help
focus at least sct convection during the day farther SE across the
remainder of the region.

Did lower min temps a bit tonight across the rain cooled areas of
SE OK/SW AR, while also removing pops for Lower E TX/much of N LA
where the seabreeze convection has diminished and the air mass
having stabilized.

Zone update already out...grids will be available shortly.

15

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  74  84  70  87 /  40  90  60  60
MLU  74  87  70  87 /  30  90  70  70
DEQ  69  85  65  89 /  80  80  20  10
TXK  71  81  68  87 /  80  90  30  20
ELD  71  82  66  87 /  70  90  60  30
TYR  71  84  69  87 /  50  80  50  40
GGG  71  85  68  88 /  40  90  60  50
LFK  73  87  70  86 /  20  90  70  80

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...None.
LA...None.
OK...None.
TX...None.
&&

12/15

Hazardous Weather Outlook
National Weather Service Shreveport LA
1221 PM CDT Sun Jun 21 2020

ARZ050-051-059>061-070>073-LAZ001>006-012>014-OKZ077-TXZ096-097-
108>112-124>126-136>138-221730-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-Bienville-
Jackson-Ouachita-McCurtain-Red River-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-
1221 PM CDT Sun Jun 21 2020

This Hazardous Weather Outlook is for portions of south central
Arkansas, southwest Arkansas, north central Louisiana, northwest
Louisiana, southeast Oklahoma and northeast Texas.

.DAY ONE...This Afternoon and Tonight...

Showers and thunderstorms will continue to develop across SE
Oklahoma, SW Arkansas, and areas of East Texas/North Louisiana
north of Interstate 20, as a remnant MCV moves across the
ArkLaTex through the afternoon hours. Locally heavy rain, with
amounts over 2 inches, will be possible in many locations. A
couple of isolated severe thunderstorms cannot be completely ruled
out. Damaging winds will be the primary threat.

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

Thunderstorms will remain possible every day from Monday through
Saturday. Widespread thunderstorms are expected Tuesday and
Wednesday. A few severe storms cannot be completely ruled out.
Damaging winds will be the primary threat. In addition, locally
heavy rainfall could lead to isolated flooding.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters may be needed today. Please relay
any information about observed severe weather to the NWS while
following all local, state, and CDC guidelines.

LAZ010-011-017>022-TXZ149>153-165>167-221730-
De Soto-Red River-Sabine-Natchitoches-Winn-Grant-Caldwell-
La Salle-Cherokee-Rusk-Panola-Nacogdoches-Shelby-Angelina-
San Augustine-
1221 PM CDT Sun Jun 21 2020

This Hazardous Weather Outlook is for portions of north central
Louisiana, northwest Louisiana, east Texas and northeast Texas.

.DAY ONE...This Afternoon and Tonight...

Isolated to widely scattered thunderstorms will be possible today.
The strongest storms may produce gusty winds and brief heavy
rainfall.

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

Thunderstorms will remain possible every day from Monday through
Saturday. Widespread thunderstorms are expected Tuesday and
Wednesday. A few severe storms cannot be completely ruled out.
Damaging winds will be the primary threat. In addition, locally
heavy rainfall could lead to isolated flooding.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters is not anticipated through tonight.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
930 PM CDT SUN JUN 21 2020

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

0900 PM     TSTM WND DMG     HOPE                    33.67N 93.59W
06/21/2020                   HEMPSTEAD          AR   911 CALL CENTER

            TREES AND POWER LINES DOWN ACROSS THE
            COUNTY.

&&

AS

Special Weather Statement
National Weather Service Shreveport LA
947 PM CDT Sun Jun 21 2020

ARZ059-060-220330-
Hempstead AR-Little River AR-
947 PM CDT Sun Jun 21 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LITTLE RIVER AND
SOUTHERN HEMPSTEAD COUNTIES UNTIL 1030 PM CDT...

At 947 PM CDT, Doppler radar was tracking a strong thunderstorm near
Fulton, or 12 miles east of Ashdown, moving east at 25 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Hope, Perrytown, Fulton, McNab, Patmos, Oakhaven and Red Bluff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3350 9349 3353 9378 3355 9378 3354 9380
      3356 9379 3357 9383 3361 9382 3360 9383
      3361 9386 3357 9390 3358 9393 3355 9394
      3358 9397 3355 9397 3355 9398 3373 9397
      3374 9348
TIME...MOT...LOC 0247Z 273DEG 20KT 3364 9391

24

Special Weather Statement
National Weather Service Shreveport LA
1038 PM CDT Sun Jun 21 2020

ARZ051-060-220445-
Howard AR-Hempstead AR-
1038 PM CDT Sun Jun 21 2020

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL HEMPSTEAD AND
SOUTHEASTERN HOWARD COUNTIES UNTIL 1145 PM CDT...

At 1038 PM CDT, Doppler radar was tracking a strong thunderstorm near
Saratoga, or 11 miles south of Mineral Springs, moving east at 10
mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Hope, Perrytown, Fulton, Washington, Saratoga, McNab, Oakhaven and
Bright Star.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3351 9350 3360 9381 3361 9382 3361 9383
      3362 9385 3361 9386 3363 9387 3363 9389
      3364 9390 3363 9392 3365 9390 3367 9392
      3365 9394 3367 9397 3371 9397 3371 9396
      3372 9395 3377 9395 3382 9349
TIME...MOT...LOC 0338Z 275DEG 10KT 3371 9390

24

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1051 PM CDT SUN JUN 21 2020

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

0847 PM     HAIL             1 NE FULTON             33.62N 93.80W
06/21/2020  E0.88 INCH       HEMPSTEAD          AR   PUBLIC

&&

AS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1122 PM CDT SUN JUN 21 2020

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

1115 PM     FLASH FLOOD      HOPE                    33.67N 93.59W
06/21/2020                   HEMPSTEAD          AR   LAW ENFORCEMENT

            HIGH WATER REPORTED OVER SEVERAL ROADWAYS IN
            AND NEAR HOPE.

&&

15

Special Weather Statement
National Weather Service Shreveport LA
1220 AM CDT Mon Jun 22 2020

ARZ051-060-061-220615-
Howard AR-Hempstead AR-Nevada AR-
1220 AM CDT Mon Jun 22 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN HEMPSTEAD...SOUTHEASTERN
HOWARD AND NORTHWESTERN NEVADA COUNTIES UNTIL 115 AM CDT...

At 1219 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles northeast of Blevins to 6 miles north
of Washington to near Mineral Springs. Movement was southeast at 10
mph.

Pea size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Prescott, Mineral Springs, Emmet, Blevins, Perrytown, Tollette,
Washington, McCaskill, Ozan, Oakhaven, Boughton and Bright Star.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3395 9342 3387 9330 3384 9329 3384 9326
      3383 9326 3383 9325 3380 9321 3370 9350
      3374 9389 3391 9405 3389 9377 3396 9344
TIME...MOT...LOC 0519Z 301DEG 10KT 3392 9346 3387 9371 3390 9401

24