Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 397, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at May 23, 2019, 1:10 AM CDT for Caddo County, Canadian County, Oklahoma. It was in force for 50 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
- May 23, 2019, 1:10 AM CDT (06:10 UTC)
- Expired
- May 23, 2019, 2:00 AM CDT
- In force
- 50 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 2.0 in
- Wind
- 60.0 mph
Counties Caddo County, OK, Canadian County, OK
The radar
The Norman radar (KTLX), 82 km from the middle of the area, began a volume at 06:08 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 00:00Z, 6.2 hours before the alert went out and 72 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.
- Mixed-layer CAPE
- 3161 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 985 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 255 m²/s²
- Significant tornado parameter
- 4.9
- Supercell composite
- 20.5
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 May 22, 6:28 PM CDT, 6 hours 42 minutes earlier.
Area forecast discussion, May 22, 6:28 PM CDT, 6 hours 42 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Norman OK
628 PM CDT Wed May 22 2019
.AVIATION...
Widely scattered storms will continue into the evening across
north central Oklahoma down through central Oklahoma and western
north Texas. Storms are expected to become more numerous along
the front in northern Oklahoma around midnight before moving off
toward morning. MVFR ceilings will develop across much of the area
as moisture moves in late tonight into the early morning.
Ceilings should lift a little during the day tomorrow. Expectation
is for front to lift north tomorrow morning, bringing a return of
southerly winds to our northern TAF sites.
Day
&&
.PREV DISCUSSION... /issued 322 PM CDT Wed May 22 2019/
DISCUSSION...
Scattered strong to severe thunderstorms are developing this
afternoon, mainly along better moisture return over western north
Texas and southwestern Oklahoma. Other storms are attempting to
develop over central Oklahoma near Shawnee and Pauls Valley.
Instability and shear will certainly favor supercell structures.
The strongest storms will be capable of producing: golf ball to
baseball sized hail, damaging winds to 70 mph, and tornadoes
(perhaps strong). By mid to late evening and overnight, it's
possible that a more concentrated area of storms may impact parts
of north central Oklahoma, which will increase the risk of more
flooding. A flood watch was issued earlier today to address this
possibility.
Late tonight into Thursday, better moisture return will occur over
northern parts of the Texas Panhandle. As a trough/low over the
southwest moves north and northeast Thursday, thunderstorms will
develop along a dryline across the Oklahoma and Texas panhandles.
Severe storms should move off the dryline and into parts of
western Oklahoma late Thursday afternoon and night. Supercells
will be possible with a risk of large hail and damaging winds, and
perhaps more flooding rainfall.
The center of a mid level ridge over the southeastern United States
may keep parts of eastern and southern Oklahoma relatively dry
Friday through Sunday. Meanwhile, afternoon and evening storms
will form to our west each day and impact western and northern
Oklahoma & western north Texas during the evening and overnight.
Another strong trough may approach the southern Plains early next
week. This would bring a better chance of widespread showers and
storms to a large part of Oklahoma and north Texas. Flooding and
severe weather is possible.
&&
.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK 71 83 70 83 / 40 20 20 20
Hobart OK 70 81 69 82 / 10 30 50 50
Wichita Falls TX 72 86 71 86 / 10 10 20 20
Gage OK 66 78 63 76 / 30 40 60 60
Ponca City OK 67 82 70 81 / 70 40 30 50
Durant OK 73 86 71 85 / 10 10 10 10
&&
.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch through Thursday morning for OKZ007-008-012-013-
018>020-024>030.
TX...None.
&&
30/14/14Hazardous weather outlook, May 22, 10:25 PM CDT, 2 hours 45 minutes before
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Special weather statement, May 22, 8:28 PM CDT, 4 hours 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 828 PM CDT Wed May 22 2019 OKZ019-020-230145- Payne OK-Logan OK- 828 PM CDT Wed May 22 2019 ...SIGNIFICANT WEATHER ADVISORY FOR southwestern Payne and northeastern Logan Counties Until 845 PM CDT... AT 825 PM CDT, a strong thunderstorm was located 5 miles south of Mulhall, moving northeast at 30 MPH. HAZARDS INCLUDE... Hail up to the size of nickels... Heavy rain... Locations impacted include... Stillwater, Langston, Mulhall, Orlando and Lake Carl Blackwell. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the weather situation closely and be alert for threatening weather conditions. && LAT...LON 3587 9734 3595 9750 3616 9745 3614 9710 TIME...MOT...LOC 0125Z 207DEG 26KT 3598 9741 BRB
Special weather statement, May 22, 8:45 PM CDT, 4 hours 25 minutes before
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Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 7:03 PM CDT | Special Weather Statement | OUN | Caddo | 27 min |
| May 22, 7:07 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Kiowa, Tillman | 38 min |
| May 22, 7:15 PM CDT | Severe Thunderstorm Warning | OUN | Noble | 45 min |
| May 22, 7:24 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 51 min |
| May 22, 7:26 PM CDT | Special Weather Statement | OUN | Caddo | 34 min |
| May 22, 7:27 PM CDT | Special Weather Statement | OUN | Canadian | 33 min |
| May 22, 7:33 PM CDT | Tornado Warning | OUN | Cotton | 25 min |
| May 22, 7:42 PM CDT | Special Weather Statement | OUN | Comanche | 33 min |
| May 22, 7:46 PM CDT | Special Weather Statement | OUN | Noble | 29 min |
| May 22, 7:49 PM CDT | Severe Thunderstorm Warning | OUN | Noble, Payne | 41 min |
| May 22, 7:54 PM CDT | Flash Flood Warning | OUN | Payne | 96 min |
| May 22, 7:59 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 46 min |
| May 22, 8:02 PM CDT | Special Weather Statement | OUN | Caddo | 28 min |
| May 22, 8:07 PM CDT | Special Weather Statement | OUN | Logan | 23 min |
| May 22, 8:10 PM CDT | Flash Flood Warning | OUN | Logan | 95 min |
| May 22, 8:17 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 28 min |
| May 22, 8:21 PM CDT | Areal Flood Advisory | OUN | Cotton | 3 hr |
| May 22, 8:28 PM CDT | Special Weather Statement | OUN | Logan | 17 min |
| May 22, 8:29 PM CDT | Severe Thunderstorm Warning | OUN | Payne | 31 min |
| May 22, 8:35 PM CDT | Tornado Warning | OUN | Payne | 25 min |
| May 22, 8:45 PM CDT | Special Weather Statement | OUN | Payne | 30 min |
| May 22, 9:20 PM CDT | Areal Flood Warning | OUN | Garfield, Kay, Kingfisher, Lincoln, Logan, Noble and 1 more | 12 hr |
| May 22, 9:39 PM CDT | Flash Flood Warning | OUN | Kay | 2 hr |
| May 22, 9:40 PM CDT | Special Weather Statement | OUN | Kiowa | 35 min |
| May 22, 9:45 PM CDT | Special Weather Statement | OUN | Kay | 30 min |
| May 22, 10:24 PM CDT | Severe Thunderstorm Warning | OUN | Greer, Kiowa, Washita | 51 min |
| May 22, 10:47 PM CDT | Special Weather Statement | OUN | Greer | 28 min |
| May 22, 11:00 PM CDT | Severe Thunderstorm Warning | OUN | Kiowa, Washita | 45 min |
| May 22, 11:41 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Washita | 49 min |
| May 23, 12:26 AM CDT | Severe Thunderstorm Warning | OUN | Caddo, Canadian, Washita | 49 min |
| May 23, 1:20 AM CDT | Areal Flood Warning | OUN | Caddo, Canadian, Grady | 46 min |
| May 23, 9:00 AM CDT | Areal Flood Warning | OUN | Garfield, Kay, Lincoln, Logan, Noble, Payne | 12 hr |
| May 23, 9:26 AM CDT | River Flood Warning | OUN | Woodward | 3 days |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2019Every 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.