Severe Thunderstorm Warning 194, NWS Shreveport, LA

Area Forecast Discussion
National Weather Service Shreveport LA
1231 AM CDT Sat May 23 2020

.AVIATION...

Convection currently across the extreme northern portion of our
airspace early this morning. Whether or not this convection comes
south into our I-20 Corridor terminal locations is anyone's guess
but given the abundance of guidance that shows an acceleration
overnight towards the pre and post down hours further south, went
ahead and began mentioning VCTS from north to south through the
morning hours leaving mention out of the LFK/MLU terminals until
later this afternoon. Otherwise, look for IFR/MVFR ceilings to
return north this morning as was the case on Friday with ceilings
eventually becoming VFR or scattering out this afternoon outside
of convection.

Winds will be mostly southerly to southeasterly near 10kts with
much higher gradient gusts across our western terminals and of
course in association with convection.

Eventually, we will a return to VFR conditions areawide by this
afternoon into the evening hours.

13

&&

.PREV DISCUSSION... /issued 910 PM CDT Fri May 22 2020/

UPDATE...
The latest run of the HRRR is capturing the ongoing severe convection
in S OK/N TX quite well and has it moving into the I-30 corridor
just before midnight tonight. Currently, only McCurtain County is
in a Severe Thunderstorm Watch in our area; will have to closely
monitor this situation as the evening progresses. This activity will
spread slowly eastward into SW AR into the early morning hours,
thus will not make any major changes to the forecast at the
moment.

35

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  71  87  70  83 /  10  50  40  60
MLU  72  89  70  87 /  10  40  20  50
DEQ  68  85  67  82 /  10  50  60  70
TXK  70  85  69  82 /  10  50  50  70
ELD  70  88  69  85 /  10  30  30  60
TYR  72  84  69  80 /  10  60  50  70
GGG  71  86  68  82 /  10  60  50  60
LFK  72  87  69  83 /  10  60  40  60

&&

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

13/35

Special Weather Statement
National Weather Service Shreveport LA
729 PM CDT Fri May 22 2020

TXZ124-136-230115-
Smith TX-Wood TX-
729 PM CDT Fri May 22 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SMITH AND
SOUTHWESTERN WOOD COUNTIES UNTIL 815 PM CDT...

At 729 PM CDT, Doppler radar was tracking a strong thunderstorm near
Van, or 15 miles southwest of Mineola, moving north at 30 mph.

Penny size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Mineola, Hainesville, Hoard, Golden, Alba and Carroll.

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 3274 9533 3240 9550 3245 9555 3248 9559
      3269 9559 3272 9564 3282 9565
TIME...MOT...LOC 0029Z 197DEG 25KT 3246 9560

19

Special Weather Statement
National Weather Service Shreveport LA
1148 PM CDT Fri May 22 2020

OKZ077-TXZ096-230545-
McCurtain OK-Red River TX-
1148 PM CDT Fri May 22 2020

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL MCCURTAIN AND NORTH
CENTRAL RED RIVER COUNTIES UNTIL 1245 AM CDT...

At 1148 PM CDT, Doppler radar was tracking a strong thunderstorm over
Raymond Gary State Park, or 15 miles east of Hugo, moving east at 30
mph.

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

Locations impacted include...
Idabel, Broken Bow, Wright City, Valliant, Millerton, Garvin, Farmers
Hill, Rufe, Redland, Holly Creek, Glover, Slim, Oak Hill and Golden.

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.

&&

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
southeastern Oklahoma.

LAT...LON 3421 9475 3393 9469 3387 9521 3396 9523
      3396 9521 3394 9516 3416 9515
TIME...MOT...LOC 0448Z 260DEG 26KT 3401 9524

19

Special Weather Statement
National Weather Service Shreveport LA
1221 AM CDT Sat May 23 2020

OKZ077-230615-
McCurtain OK-
1221 AM CDT Sat May 23 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MCCURTAIN COUNTY UNTIL
115 AM CDT...

At 1221 AM CDT, Doppler radar was tracking a strong thunderstorm 17
miles northwest of Broken Bow, or 35 miles northeast of Hugo, moving
northeast at 25 mph.

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

Locations impacted include...
Mount Herman, Sherwood and Bethel.

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.

&&

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
southeastern Oklahoma.

LAT...LON 3426 9453 3415 9502 3429 9505 3431 9504
      3445 9460
TIME...MOT...LOC 0521Z 244DEG 20KT 3421 9494

19

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