Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 296, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 13, 2003, 4:31 AM CDT for Cherokee County, Oklahoma. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 13, 2003, 4:31 AM CDT (09:31 UTC)
- Expired
- Jul 13, 2003, 5:15 AM CDT
- In force
- 44 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
County Cherokee County, OK
The radar
The Tulsa radar (KINX), 54 km from the middle of the area, began a volume at 09:31 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 9.5 hours before the alert went out and 136 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
- 2640 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 974 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 130931 SVRTUL OKC021-131015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 431 AM CDT SUN JUL 13 2003 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA * UNTIL 515 AM CDT * AT 431 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF SCRAPER...MOVING EAST AT 10 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...OAKS AND SCRAPER. HAIL TO THE SIZE OF NICKELS CAN BE EXPECTED IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. LAT...LON 3619 9507 3601 9510 3601 9480 3616 9479 $$
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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 13, 3:12 AM CDT, 1 hour 19 minutes earlier.
Area forecast discussion, Jul 13, 3:12 AM CDT, 1 hour 19 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OKLAHOMA 312 AM CDT SUN JUL 13 2003 JUST BEFORE 3 AM...THUNDERSTORMS STARTED DEVELOPING EASTWARD IN THE WATCH AREA. WILL WAIT TILL THE LAST MINUTE BEFORE SENDING ZONES AND ADJUSTING TO HOW THINGS LOOK. WITH WEAK BOUNDARY AND UPPER AIR SHORT WAVE MOVING ACROSS THE AREA IN THE NORTHWEST FLOW...NOT HARD TO JUSTIFY A WATCH FOR MUCH OF OK. ONLY QUESTION SEEMS TO BE IS HOW WIDESPREAD ARE THE THUNDERSTORMS GOING TO BE. WILL KEEP 30 TO 40 POPS ACROSS THE AREA TODAY WITH ONLY 20 PERCENT IN THE SOUTHEASTERN SECTION TONIGHT. THIS SEEMS THE MOST REALISTIC WITH CURRENT CONDITIONS. LOOKS LIKE GUIDANCE HAS A FAIRLY GOOD HANDLE ON THE TEMPS AND WILL STICK PRETTY CLOSE TO THEM. DRY FORECAST AFTER THIS SYSTEM MOVES OUT. TUL 91 72 95 74 / 40 10 10 10 FSM 91 72 91 72 / 30 20 10 10 MLC 92 73 95 73 / 30 10 10 10 BVO 89 72 95 74 / 40 10 10 10 FYV 87 70 90 71 / 30 20 10 10 BYV 86 71 90 71 / 30 20 10 10 MKO 92 73 95 74 / 30 10 10 10 MIO 86 72 94 74 / 30 10 10 10 F10 92 73 95 73 / 40 10 10 10 HHW 91 74 96 73 / 30 20 10 10 FORECAST ID= 15 .TSA... AR...NONE. OK...NONE.
Hazardous weather outlook, Jul 12, 9:00 PM CDT, 7 hours 31 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-131100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 900 PM CDT SAT JUL 12 2003 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...TONIGHT SEVERE WEATHER OUTLOOK ...SLIGHT CHANCE OF SEVERE THUNDERSTORMS TONIGHT... A WEAK SURFACE FRONT REMAINS ACROSS NORTHERN OKLAHOMA WHILE THE AIRMASS OVER ALL OF EASTERN OKLAHOMA AND WESTERN ARKANSAS REMAINS UNSTABLE. A LAYER OF WARM AIR ALOFT HAS CONTINUED TO PROVIDE A CAP AGAINST THUNDERSTORM FORMATION...HOWEVER A WEAK DISTURBANCE MOVING ACROSS WESTERN KANSAS MAY HELP OVERCOME THIS CAPPING LAYER LATER TONIGHT. HIGH INSTABILITY AND FAVORABLE WINDS ALOFT WILL PROVIDE A SEVERE WEATHER THREAT WITH ANY THUNDERSTORMS THAT DO DEVELOP OVERNIGHT. THE FAVORED AREA FOR DEVELOP WILL BE ALONG THE FRONTAL BOUNDARY POSITION WHICH WILL LIKELY REMAIN NORTH OF INTERSTATE 40. HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 70 MPH WILL BE POSSIBLE SHOULD SEVERE WEATHER DEVELOP TONIGHT. WARNING PROBABILITIES FOR SEVERE THUNDERSTORMS AND TORNADOES CAN BE FOUND IN THE OUTLOOK SECTION AT: WWW.SRH.NOAA.GOV/TULSA. GIVEN PROBABILITIES REPRESENT THE POTENTIAL FOR A WARNING TO BE ISSUED AT YOUR LOCATION. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY ANY THUNDERSTORMS THAT DEVELOP SATURDAY NIGHT ARE EXPECTED TO WEAKEN SUNDAY MORNING...ALTHOUGH THUNDERSTORM REDEVELOPMENT WILL BE POSSIBLE OVER THE AREA BY SUNDAY AFTERNOON. A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE. CONDITIONS ARE EXPECTED TO BE DRY MONDAY THROUGH FRIDAY AS HIGH PRESSURE PREVAILS AT THE SURFACE AND ALOFT. .SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED OVERNIGHT...PRIMARILY NORTH OF INTERSTATE 40. ADDITIONAL WEATHER INFORMATION CAN BE FOUND AT... WWW.SRH.NOAA.GOV/TULSA
In the hours before
Special weather statement, Jul 12, 11:22 PM CDT, 5 hours 9 minutes before
OKZ054>055-059>060-064>066-073-131000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1122 PM CDT SAT JUL 12 2003 THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH #735 UNTIL 500 AM CDT SUNDAY MORNING FOR THE FOLLOWING AREAS: IN OKLAHOMA THIS WATCH INCLUDES 8 COUNTIES... IN EAST CENTRAL OKLAHOMA: OKFUSKEE IN NORTHEAST OKLAHOMA: CREEK OKMULGEE OSAGE PAWNEE TULSA WASHINGTON IN SOUTHEAST OKLAHOMA: PITTSBURG THIS INCLUDES THE CITIES OF BARTLESVILLE...BRISTOW...BROKEN ARROW... MCALESTER...OKEMAH...OKMULGEE...PAWHUSKA...PAWNEE...SAND SPRINGS AND TULSA.
Special weather statement, Jul 13, 4:05 AM CDT, 26 minutes before
OKZ069-130930-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
405 AM CDT SUN JUL 13 2003
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY EFFECTIVE UNTIL 430 AM CDT FOR THE FOLLOWING COUNTY:
IN NORTHEAST OKLAHOMA
SOUTHERN ADAIR
AT 405 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7 MILES
NORTHWEST OF BUNCH...MOVING SOUTHEAST AT 15 MPH. SOME LOCATIONS THAT
WILL BE AFFECTED BY THIS STORM INCLUDE...STILWELL AND BUNCH.
THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
40 MPH.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 4:21 AM CDT | Severe Thunderstorm Warning | TSA | Delaware, Mayes | 39 min |
| Jul 13, 5:00 AM CDT | Severe Thunderstorm Warning | TSA | Adair | 60 min |
| Jul 13, 5:10 AM CDT | Severe Thunderstorm Warning | TSA | Delaware | 65 min |
| Jul 13, 5:54 AM CDT | Severe Thunderstorm Warning | TSA | Adair | 66 min |
| Jul 13, 8:15 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 60 min |
| Jul 13, 8:25 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 50 min |
| Jul 13, 8:27 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 33 min |
| Jul 13, 8:42 AM CDT | Severe Thunderstorm Warning | TSA | Adair | 33 min |
| Jul 13, 9:10 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 50 min |
| Jul 13, 9:11 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Sequoyah | 49 min |
| Jul 13, 9:57 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Sequoyah | 63 min |
| Jul 13, 10:18 AM CDT | Severe Thunderstorm Warning | TSA | Haskell | 42 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2003Every severe thunderstorm warning 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.