Alert archive / Oklahoma / Tornado Watches in 2003

Tornado Watch 389

May 16, 200339 counties in Oklahoma

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.

IssuedProductOfficeCountiesLasted
May 16, 2:01 AM CDTSevere Thunderstorm WarningOUNGarfield, Grant, Kay, Kingfisher, Logan, Noble and 1 more59 min
May 16, 2:22 AM CDTSevere Thunderstorm WarningTSACreek, Osage, Pawnee98 min
May 16, 2:30 AM CDTSevere Thunderstorm WarningOUNCarter, Garvin, Love, Murray60 min
May 16, 2:58 AM CDTSevere Thunderstorm WarningOUNKay, Lincoln, Noble, Payne47 min
May 16, 3:12 AM CDTSevere Thunderstorm WarningOUNJohnston, Pontotoc63 min
May 16, 3:19 AM CDTSevere Thunderstorm WarningOUNPottawatomie, Seminole56 min
May 16, 3:26 AM CDTSevere Thunderstorm WarningTSATulsa34 min
May 16, 3:36 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Okfuskee, Okmulgee, Pittsburg69 min
May 16, 3:39 AM CDTSevere Thunderstorm WarningOUNAtoka, Coal, Hughes51 min
May 16, 3:45 AM CDTSevere Thunderstorm WarningOUNLincoln45 min
May 16, 3:49 AM CDTSevere Thunderstorm WarningOUNCarter, Love41 min
May 16, 3:52 AM CDTSevere Thunderstorm WarningTSACreek, Nowata, Osage, Rogers, Tulsa, Washington68 min
May 16, 3:58 AM CDTTornado WarningOUNLincoln32 min
May 16, 4:20 AM CDTSevere Thunderstorm WarningTSAMuskogee, Wagoner55 min
May 16, 4:26 AM CDTSevere Thunderstorm WarningOUNCarter, Murray34 min
May 16, 4:41 AM CDTSevere Thunderstorm WarningOUNJohnston, Pontotoc49 min
May 16, 4:44 AM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Haskell, LeFlore, McIntosh, Muskogee and 1 more91 min
May 16, 4:46 AM CDTSevere Thunderstorm WarningOUNLove29 min
May 16, 4:50 AM CDTSevere Thunderstorm WarningOUNMarshall25 min
May 16, 5:06 AM CDTSevere Thunderstorm WarningOUNCoal, Hughes54 min
May 16, 5:13 AM CDTSevere Thunderstorm WarningOUNAtoka, Bryan62 min
May 16, 5:15 AM CDTSevere Thunderstorm WarningTSAWagoner30 min
May 16, 5:17 AM CDTSevere Thunderstorm WarningOUNMarshall28 min
May 16, 5:19 AM CDTSevere Thunderstorm WarningTSAChoctaw, Latimer, Pittsburg, Pushmataha56 min
May 16, 6:13 AM CDTSevere Thunderstorm WarningTSAChoctaw, Haskell, Latimer, LeFlore, McIntosh, Muskogee and 2 more62 min
May 16, 6:14 AM CDTSevere Thunderstorm WarningOUNAtoka, Bryan46 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.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2003-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1353 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2003-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
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

Open this sounding in Storm Lab

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 370,0975

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 15, 8:38 PM CDTMesoscale DiscussionSPCCotton, Jackson, Jefferson, Stephens, Tillman2 hr
May 15, 10:25 PM CDTTornado WatchSPCCotton, Jackson, Jefferson, Stephens, Tillman6 hr
May 15, 10:30 PM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Beckham, Blaine, Custer, Dewey and 8 more2 hr
May 15, 11:32 PM CDTMesoscale DiscussionSPCCimarron, Texas118 min
May 15, 11:35 PM CDTTornado WatchSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 13 more4 hr
May 15, 11:49 PM CDTMesoscale DiscussionSPCCotton, Jackson, Jefferson, Stephens, Tillman86 min
May 16, 1:22 AM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Cleveland, Custer and 16 more53 min
May 16, 2:33 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Cleveland, Coal and 16 more57 min
May 16, 3:07 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Cleveland, Coal and 33 more53 min
May 16, 4:04 AM CDTMesoscale DiscussionSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 36 more56 min
May 16, 4:25 AM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Craig, Delaware, Haskell, LeFlore and 4 more5 hr
May 16, 5:22 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Coal, Johnston, Latimer and 10 more53 min
May 16, 5:47 AM CDTMesoscale DiscussionSPCAdair, Cherokee, Delaware, Haskell, LeFlore, McCurtain and 2 more58 min
May 16, 6:35 AM CDTMesoscale DiscussionSPCAdair, Cherokee, Delaware, Haskell, LeFlore, McCurtain and 2 more25 min
May 16, 9:16 AM CDTMesoscale DiscussionSPCChoctaw, Latimer, McCurtain, Pushmataha119 min
May 16, 11:35 AM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Creek, Garfield, Grady and 20 more2 hr
May 16, 12:00 PM CDTTornado WatchSPCAdair, Canadian, Cherokee, Craig, Creek, Delaware and 23 more6 hr
May 16, 12:09 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Haskell, Latimer, LeFlore and 3 more3 hr
May 16, 12:45 PM CDTTornado WatchSPCAtoka, Bryan, Choctaw, Coal, Haskell, Hughes and 10 more5 hr
May 16, 1:46 PM CDTMesoscale DiscussionSPCCherokee, Creek, Lincoln, Logan, McIntosh, Mayes and 12 more89 min
May 16, 3:18 PM CDTMesoscale DiscussionSPCLeFlore, McCurtain117 min
May 16, 3:55 PM CDTTornado WatchSPCAdair6 hr
May 16, 5:06 PM CDTMesoscale DiscussionSPCMcCurtain54 min
May 16, 5:45 PM CDTTornado WatchSPCMcCurtain6 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.