Alert archive / Oklahoma / Tornado Watches in 2003
Tornado Watch 389
The Storm Prediction Center issued this tornado watch at May 16, 2003, 1:20 AM CDT for 39 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 16, 2003, 1:20 AM CDT (06:20 UTC)
- Expired
- May 16, 2003, 7:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 39 counties
Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Cleveland County, OK, Coal County, OK, Creek County, OK, Garfield County, OK, Garvin County, OK, Grant County, OK, Hughes County, OK, Johnston County, OK, Kay County, OK, Latimer County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Marshall County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Noble County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 78 km from the middle of the area, began a volume at 06:20 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.
Warnings issued inside it
26 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 2:01 AM CDT | Severe Thunderstorm Warning | OUN | Garfield, Grant, Kay, Kingfisher, Logan, Noble and 1 more | 59 min |
| May 16, 2:22 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee | 98 min |
| May 16, 2:30 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Garvin, Love, Murray | 60 min |
| May 16, 2:58 AM CDT | Severe Thunderstorm Warning | OUN | Kay, Lincoln, Noble, Payne | 47 min |
| May 16, 3:12 AM CDT | Severe Thunderstorm Warning | OUN | Johnston, Pontotoc | 63 min |
| May 16, 3:19 AM CDT | Severe Thunderstorm Warning | OUN | Pottawatomie, Seminole | 56 min |
| May 16, 3:26 AM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 34 min |
| May 16, 3:36 AM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Okfuskee, Okmulgee, Pittsburg | 69 min |
| May 16, 3:39 AM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal, Hughes | 51 min |
| May 16, 3:45 AM CDT | Severe Thunderstorm Warning | OUN | Lincoln | 45 min |
| May 16, 3:49 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Love | 41 min |
| May 16, 3:52 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Nowata, Osage, Rogers, Tulsa, Washington | 68 min |
| May 16, 3:58 AM CDT | Tornado Warning | OUN | Lincoln | 32 min |
| May 16, 4:20 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Wagoner | 55 min |
| May 16, 4:26 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Murray | 34 min |
| May 16, 4:41 AM CDT | Severe Thunderstorm Warning | OUN | Johnston, Pontotoc | 49 min |
| May 16, 4:44 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Haskell, LeFlore, McIntosh, Muskogee and 1 more | 91 min |
| May 16, 4:46 AM CDT | Severe Thunderstorm Warning | OUN | Love | 29 min |
| May 16, 4:50 AM CDT | Severe Thunderstorm Warning | OUN | Marshall | 25 min |
| May 16, 5:06 AM CDT | Severe Thunderstorm Warning | OUN | Coal, Hughes | 54 min |
| May 16, 5:13 AM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan | 62 min |
| May 16, 5:15 AM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 30 min |
| May 16, 5:17 AM CDT | Severe Thunderstorm Warning | OUN | Marshall | 28 min |
| May 16, 5:19 AM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Latimer, Pittsburg, Pushmataha | 56 min |
| May 16, 6:13 AM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Haskell, Latimer, LeFlore, McIntosh, Muskogee and 2 more | 62 min |
| May 16, 6:14 AM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan | 46 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 6.3 hours before the alert went out and 119 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
- 1353 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 1001 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 280 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 160616
SEL9
SPC WW 160620
OKZ000-161200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 389
NWS STORM PREDICTION CENTER NORMAN OK
120 AM CDT FRI MAY 16 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND EASTERN OKLAHOMA
EFFECTIVE THIS FRIDAY MORNING FROM 120 AM UNTIL 700 AM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 35 MILES NORTHEAST OF PONCA CITY OKLAHOMA TO 5
MILES SOUTH OF DURANT OKLAHOMA.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
OTHER WATCH INFORMATION...CONTINUE...WW 387...WW 388...
DISCUSSION...VERY STRONG MESO LOW AND ASSOCIATED SEVERE
THUNDERSTORMS OVER NWRN OK. WITH VWP HELICITIES WELL ABOVE 500
M2/S2 IN WARM SECTOR WITH MLCAPES TO ABOVE 2000 J/KG...POTENTIAL FOR
TORNADIC SUPERCELLS BOTH AHEAD OF INTENSE SQUALL LINE AS WELL AS
EMBEDDED IN THE SQUALL LINE ASSOCIATED WITH MESO LOW WILL CONTINUE
AS SYSTEM MOVES EWD.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
MEAN STORM MOTION VECTOR 24040.
...HALES
370,0952 335,0951 335,0973 370,0975SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 8:38 PM CDT | Mesoscale Discussion | SPC | Cotton, Jackson, Jefferson, Stephens, Tillman | 2 hr |
| May 15, 10:25 PM CDT | Tornado Watch | SPC | Cotton, Jackson, Jefferson, Stephens, Tillman | 6 hr |
| May 15, 10:30 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beaver, Beckham, Blaine, Custer, Dewey and 8 more | 2 hr |
| May 15, 11:32 PM CDT | Mesoscale Discussion | SPC | Cimarron, Texas | 118 min |
| May 15, 11:35 PM CDT | Tornado Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 13 more | 4 hr |
| May 15, 11:49 PM CDT | Mesoscale Discussion | SPC | Cotton, Jackson, Jefferson, Stephens, Tillman | 86 min |
| May 16, 1:22 AM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Caddo, Canadian, Cleveland, Custer and 16 more | 53 min |
| May 16, 2:33 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Cleveland, Coal and 16 more | 57 min |
| May 16, 3:07 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Cleveland, Coal and 33 more | 53 min |
| May 16, 4:04 AM CDT | Mesoscale Discussion | SPC | Adair, Atoka, Bryan, Carter, Cherokee, Choctaw and 36 more | 56 min |
| May 16, 4:25 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Craig, Delaware, Haskell, LeFlore and 4 more | 5 hr |
| May 16, 5:22 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Choctaw, Coal, Johnston, Latimer and 10 more | 53 min |
| May 16, 5:47 AM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Delaware, Haskell, LeFlore, McCurtain and 2 more | 58 min |
| May 16, 6:35 AM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Delaware, Haskell, LeFlore, McCurtain and 2 more | 25 min |
| May 16, 9:16 AM CDT | Mesoscale Discussion | SPC | Choctaw, Latimer, McCurtain, Pushmataha | 119 min |
| May 16, 11:35 AM CDT | Mesoscale Discussion | SPC | Caddo, Canadian, Cleveland, Creek, Garfield, Grady and 20 more | 2 hr |
| May 16, 12:00 PM CDT | Tornado Watch | SPC | Adair, Canadian, Cherokee, Craig, Creek, Delaware and 23 more | 6 hr |
| May 16, 12:09 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Choctaw, Haskell, Latimer, LeFlore and 3 more | 3 hr |
| May 16, 12:45 PM CDT | Tornado Watch | SPC | Atoka, Bryan, Choctaw, Coal, Haskell, Hughes and 10 more | 5 hr |
| May 16, 1:46 PM CDT | Mesoscale Discussion | SPC | Cherokee, Creek, Lincoln, Logan, McIntosh, Mayes and 12 more | 89 min |
| May 16, 3:18 PM CDT | Mesoscale Discussion | SPC | LeFlore, McCurtain | 117 min |
| May 16, 3:55 PM CDT | Tornado Watch | SPC | Adair | 6 hr |
| May 16, 5:06 PM CDT | Mesoscale Discussion | SPC | McCurtain | 54 min |
| May 16, 5:45 PM CDT | Tornado Watch | SPC | McCurtain | 6 hr |
Nearby
Tornado Watches in Oklahoma, 2003Every tornado watch in 2003
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.