Mesoscale Discussion 1894

Issued

Oct 24, 2021, 6:23 PM CDT (23:23 UTC)

Expired

Oct 24, 2021, 8:00 PM CDT

In force

97 min

Issued by

the Storm Prediction Center

Concerning

Tornado watch 532

The Western Arkansas radar (KSRX), 11 km from the middle of the area, began a volume at 23:24 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.

896 
ACUS11 KWNS 242324
SWOMCD
SPC MCD 242323 
ARZ000-MOZ000-TXZ000-OKZ000-250100-

Mesoscale Discussion 1894
NWS Storm Prediction Center Norman OK
0623 PM CDT Sun Oct 24 2021

Areas affected...Eastern OK...Northwest/West-Central AR...Far
Northeast TX

Concerning...Tornado Watch 532...

Valid 242323Z - 250100Z

The severe weather threat for Tornado Watch 532 continues.

SUMMARY...Threat for severe thunderstorms capable of all severe
hazards continues, particularly across northeast OK and northwest
AR.

DISCUSSION...Regional radar imagery shows a broken line of
thunderstorms extending from far southwest MO southwestward across
eastern OK into north-central TX. Most updrafts have struggled to
maintain strength thus far, but an overall strengthening/organizing
trend is expected to begin as the line enters the slightly more
moist and buoyant air mass across eastern OK/western AR. The early
stage of this strengthening appears to be ongoing with the storms in
northeast OK (from Delaware County to McIntosh County). The area
downstream of these storms (into west-central AR) appears favorable
for continued storm strengthening.

Sporadic storm intensification is also possible south across
southeast OK and adjacent far northeast TX, but low/mid-level
temperatures are bit warmer here. These warmer temperatures could
limit updraft strength, suggesting somewhat transient updrafts are
more likely for the next hour or two.

..Mosier.. 10/24/2021

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...LZK...SGF...SHV...TSA...FWD...OUN...

LAT...LON   35749551 36479454 36609336 36409219 35579224 34289348
            33649452 33489684 35749551

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The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.