Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 47, NWS Norman, OK

March 29, 2019Lincoln County, Oklahoma County, Pottawatomie County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Mar 29, 2019, 8:28 AM CDT for Lincoln County, Oklahoma County, Pottawatomie County, Oklahoma. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 29, 2019, 8:28 AM CDT (13:28 UTC)
Expired: Mar 29, 2019, 9:15 AM CDT
In force: 47 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Lincoln County, OK, Oklahoma County, OK, Pottawatomie County, OK

The radar

The Norman radar (KTLX), 25 km from the middle of the area, began a volume at 13:30 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.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 1.5 hours before the alert went out and 42 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 27 J/kg
Mixed-layer CIN: -561 J/kg
Mixed-layer LCL: 854 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 298 m²/s²
0-3 km storm-relative helicity: 300 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 29, 3:09 AM CDT, 5 hours 19 minutes earlier.

Area forecast discussion, Mar 29, 3:09 AM CDT, 5 hours 19 minutes before

Area Forecast Discussion
National Weather Service Norman OK
309 AM CDT Fri Mar 29 2019

.DISCUSSION...
Main concerns continue to be with potential for severe storms late
today into tonight as well as strong winds Saturday and freezing
temperatures Sunday morning.

Cold front, currently across northwest Oklahoma will move slowly
southeast today as upper support remain well west of the area.
Although some early morning convection may still occur, much of
the warm sector looks to remain dry today. There may be some
patchy drizzle behind the front across parts of western and
northwestern Oklahoma.

As was mentioned before, main wave remains well west of the area
and airmass that exists across Oklahoma and western north Texas
will remain capped through much of the day. Better chance for
convective development occurs this evening into the overnight
across north-central, central into eastern Oklahoma as the upper
wave moves out of Colorado into the southern Plains and increasing
low level jet aids in forcing to overcome cap. Models still
indicate sufficient instability will exist for severe convection,
with main hazard being large hail.

Also, as wave moves out across the area, surface cold front will
surge south with strengthening cold advection. This will result in
much colder air overspreading the area along with gusty north
winds late Friday night into the day Saturday. Some areas may
flirt with wind advisory wind speeds and will need to monitor for
possible headline for Saturday. Also, not out of the question, if
precip lingers long enough in far northwest Oklahoma to see some
snowflakes mix in with the rain late tonight.

Surface high will settle south Saturday night with clearing skies,
which will lead to freezing temperatures across at least northwest
half of Oklahoma by Sunday morning.

Models then bring another wave through the area late Monday,
which may produce a few light showers, but moisture will be
somewhat limited in the wake of cold front. Monday looks to be
another rather cool day, before return of more seasonal
temperatures by Tuesday.

Next chance of rain/thunderstorms comes back into the forecast by
late Wednesday as another shortwave trough moves through the area
along with associated surface front. Chance of severe weather
looks minimal with this system at this time.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  70  42  49  30 /  20  50   0   0
Hobart OK         73  40  52  29 /  20  30   0   0
Wichita Falls TX  79  47  55  34 /  10  40   0   0
Gage OK           55  34  50  23 /  20  30   0   0
Ponca City OK     67  40  49  29 /  40  50  10   0
Durant OK         72  51  56  35 /  10  50  30   0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...None.
TX...None.
&&

25/30

Hazardous weather outlook, Mar 29, 8:23 AM CDT, 5 minutes before

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In the hours before

Special weather statement, Mar 29, 7:13 AM CDT, 1 hour 15 minutes before

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Special weather statement, Mar 29, 7:26 AM CDT, 1 hour 2 minutes before

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Local storm report, Mar 29, 7:46 AM CDT, 42 minutes before

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Special weather statement, Mar 29, 7:48 AM CDT, 40 minutes before

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Special weather statement, Mar 29, 7:51 AM CDT, 37 minutes before

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Special weather statement, Mar 29, 8:04 AM CDT, 24 minutes before

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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 28, 7:00 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	30 min
Mar 28, 7:27 PM CDT	Special Weather Statement	OUN	Roger Mills	18 min
Mar 28, 7:47 PM CDT	Special Weather Statement	OUN	Roger Mills	43 min
Mar 29, 5:25 AM CDT	Special Weather Statement	OUN	Kay	35 min
Mar 29, 5:28 AM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	47 min
Mar 29, 5:43 AM CDT	Special Weather Statement	OUN	Logan	32 min
Mar 29, 5:48 AM CDT	Severe Thunderstorm Warning	OUN	Logan, Noble, Payne	42 min
Mar 29, 6:13 AM CDT	Special Weather Statement	OUN	Cleveland, Oklahoma	32 min
Mar 29, 6:22 AM CDT	Special Weather Statement	OUN	Kay	23 min
Mar 29, 6:24 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Oklahoma	51 min
Mar 29, 6:40 AM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	50 min
Mar 29, 6:53 AM CDT	Severe Thunderstorm Warning	OUN	Noble	37 min
Mar 29, 7:07 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Oklahoma	53 min
Mar 29, 7:13 AM CDT	Special Weather Statement	OUN	Cleveland	32 min
Mar 29, 7:20 AM CDT	Areal Flood Advisory	OUN	Logan, Oklahoma	115 min
Mar 29, 7:26 AM CDT	Special Weather Statement	OUN	Kay	34 min
Mar 29, 7:46 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Oklahoma, Pottawatomie	44 min
Mar 29, 7:48 AM CDT	Special Weather Statement	OUN	Lincoln	27 min
Mar 29, 7:51 AM CDT	Special Weather Statement	OUN	Kay	24 min
Mar 29, 8:04 AM CDT	Special Weather Statement	OUN	Lincoln	26 min
Mar 29, 8:19 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln	26 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2019 Every severe thunderstorm warning in 2019

Sources

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.