Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 429, NWS Tulsa, OK

June 15, 2008Delaware County, Mayes County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 15, 2008, 8:30 PM CDT for Delaware County, Mayes County, Oklahoma. It was in force for 75 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 15, 2008, 8:30 PM CDT (01:30 UTC)
Expired: Jun 15, 2008, 9:45 PM CDT
In force: 75 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Delaware County, OK, Mayes County, OK

The radar

The Tulsa radar (KINX), 62 km from the middle of the area, began a volume at 01:29 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.

What was reported inside it

Time	Report	Where	Remark
Jun 15, 8:50 PM CDT	TSTM WND DMG	2 W Colcord, OK	2 TREES DOWN OVER HIGHWAY 116.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 20 minutes after it went out.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 15, 6:38 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.5 hours before the alert went out and 116 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: 426 J/kg
Mixed-layer CIN: -284 J/kg
Mixed-layer LCL: 1124 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 321 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KTSA 160130
SVRTSA
OKC041-097-160245-
/O.NEW.KTSA.SV.W.0429.080616T0130Z-080616T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
830 PM CDT SUN JUN 15 2008

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA
  EASTERN MAYES COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 945 PM CDT

* AT 825 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL
  AND DAMAGING WINDS TO 70 MPH. THESE STORMS WERE LOCATED ALONG A
  LINE EXTENDING FROM 11 MILES NORTH OF DISNEY TO 11 MILES NORTH OF
  JAY TO 9 MILES SOUTHEAST OF JAY...MOVING SOUTH AT 23 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...JAY...
  DISNEY...LANGLEY...PENSACOLA...CHLOETA...SPAVINAW...SALINA...
  KANSAS...TWIN OAKS...LEACH...ROSE AND LOCUST GROVE.

STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

THIS STORM IS LIKELY PRODUCING LARGE HAIL AND DAMAGING WINDS. SEEK
SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

LAT...LON 3653 9479 3618 9469 3617 9479 3618 9518
      3652 9519 3652 9502 3654 9501
TIME...MOT...LOC 0130Z 357DEG 20KT 3660 9508 3654 9485
          3634 9465

$$

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 Jun 15, 3:47 PM CDT, 4 hours 43 minutes earlier.

Area forecast discussion, Jun 15, 3:47 PM CDT, 4 hours 43 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
347 PM CDT SUN JUN 15 2008

.DISCUSSION...
MISSOURI PORTION OF THE MCS CONTINUES TO PLOW SOUTH THIS AFTERNOON
BUT ACTIVITY HAS BEEN SLOW TO DEVELOP ON THE WESTERN FLANK OF THE
SYSTEM BACK INTO KANSAS. NEVERTHELESS...THERE IS STILL A STRONG
SIGNAL IN THE MODELS FOR VIGOROUS CONVECTIVE DEVELOPMENT ACROSS
EAST CENTRAL AND SOUTHEAST KANSAS OVER THE NEXT FEW HOURS WHICH
WILL THEN ADVANCE SOUTH INTO NORTHEAST OKLAHOMA AND NORTHWEST
ARKANSAS. THE INSTABILITY AXIS RUNS ROUGHLY ALONG U.S. HIGHWAY 75
WITH CAPE VALUES OF 4000-5000 J/KG. LARGE HAIL WILL BE A CONCERN
INITIALLY EARLY THIS EVENING WITH A QUICK TRANSITION TO A DAMAGING
WIND EVENT AS COLD POOL DEVELOPMENT OCCURS. MAY SEE MCS PLOW
THROUGH THE ENTIRE FORECAST AREA OVERNIGHT BUT UNCERTAINTY
INCREASES TO THE SOUTH SO WILL TAPER POPS OFF TO THE SOUTH FOR
NOW. CURRENT FLASH FLOOD WATCH LOOKS GOOD.

BEYOND TONIGHT...DID NOT DEVIATE TOO FAR FROM GUIDANCE. GENERALLY
BLENDED GUIDANCE POPS THE NEXT COUPLE DAYS AS GREAT UNCERTAINTY
EXISTS ON LOCATION OF FUTURE MCS DEVELOPMENT. IF A POWERFUL MCS
PLOWS THROUGH OUR ENTIRE FORECAST AREA TONIGHT...THIS MAY WELL
PRECLUDE DEVELOPMENT IN OUR AREA OVER THE FOLLOWING 24 HOURS OR
SO. LIKEWISE DID NOT STRAY MUCH FROM THE GFS MOS GUIDANCE IN THE
EXTENDED. DID RAISE POPS A BIT IN THE THURSDAY NIGHT AND FRIDAY
TIMEFRAME AS BOTH THE GFS AND ECMWF SUGGEST THIS MAY BE THE BEST
SHOT AT AN MCS AFFECTING A LARGE PORTION OF OUR FORECAST AREA IN
THE EXTENDED PERIODS. UPPER RIDGE BUILDS A BIT MORE STRONGLY OVER
THE AREA BY NEXT WEEKEND WHICH MAY FINALLY CUT OFF RAIN CHANCES
AND ALLOW THE HEAT TO BUILD BACK.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   67  86  66  83 /  80  50  30  50
FSM   68  88  66  85 /  70  40  40  50
MLC   69  89  68  84 /  40  30  40  40
BVO   66  84  63  83 /  90  50  30  50
FYV   64  82  60  80 /  80  50  40  40
BYV   63  80  60  79 /  80  50  40  20
MKO   68  87  66  82 /  70  40  30  50
MIO   64  82  61  81 /  90  50  20  30
F10   68  88  67  82 /  60  40  40  50
HHW   71  91  69  86 /  30  30  30  40

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH FROM 7 PM SUNDAY TO 7 AM MONDAY FOR OKZ054-
     OKZ055-OKZ056-OKZ057-OKZ058-OKZ059-OKZ060-OKZ061-OKZ062-
     OKZ063-OKZ064-OKZ066-OKZ067-OKZ068-OKZ069-OKZ070-OKZ072.

AR...FLASH FLOOD WATCH FROM 7 PM SUNDAY TO 7 AM MONDAY FOR ARZ001-
     ARZ002-ARZ010-ARZ011-ARZ019-ARZ020-ARZ029.

&&

SHORT TERM...17
LONG TERM....05

PLATE

In the hours before

Local storm report, Jun 15, 6:37 PM CDT, 1 hour 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
637 PM CDT SUN JUN 15 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0633 PM     HAIL             2 SW PEORIA             36.89N 94.70W
06/15/2008  E0.88 INCH       OTTAWA             OK   EMERGENCY MNGR

&&

PBS

Local storm report, Jun 15, 7:09 PM CDT, 1 hour 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
709 PM CDT SUN JUN 15 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0708 PM     HAIL             4 NW WYANDOTTE          36.83N 94.78W
06/15/2008  E1.00 INCH       OTTAWA             OK   EMERGENCY MNGR

&&

PBS

Special weather statement, Jun 15, 7:27 PM CDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
727 PM CDT SUN JUN 15 2008

ARZ001-002-160100-
BENTON AR-CARROLL AR-
727 PM CDT SUN JUN 15 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 800 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHWEST ARKANSAS
     NORTHWESTERN CARROLL AND NORTHEASTERN BENTON

AT 727 PM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 13 MILES NORTH OF GATEWAY TO BLAND...MOVING EAST
AT 23 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS
INCLUDE...BLAND...GATEWAY...EUREKA SPRINGS...BEAVER LAKE...BUSCH AND
BEAVER.

THESE STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS
TO 50 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE
SIGNIFICANT WEATHER ALERT IS UPGRADED TO A WARNING.

LAT...LON 3630 9393 3649 9398 3650 9397 3650 9395
      3650 9394 3650 9378 3631 9366
TIME...MOT...LOC 0027Z 250DEG 20KT 3668 9397 3635 9387

Special weather statement, Jun 15, 7:32 PM CDT, 58 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
732 PM CDT SUN JUN 15 2008

ARZ001-160100-
BENTON AR-
732 PM CDT SUN JUN 15 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 800 PM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHWEST ARKANSAS
     NORTHEASTERN BENTON

AT 732 PM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM 13 MILES NORTH OF GATEWAY TO BEAVER LAKE...MOVING
EAST AT 23 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS
INCLUDE...BLAND...GATEWAY AND BEAVER LAKE.

THESE STORMS WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS
TO 50 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE
SIGNIFICANT WEATHER ALERT IS UPGRADED TO A WARNING.

LAT...LON 3630 9394 3650 9398 3650 9395 3650 9394
      3650 9388 3642 9386 3641 9386 3630 9387
TIME...MOT...LOC 0032Z 250DEG 20KT 3668 9394 3636 9384

Local storm report, Jun 15, 7:55 PM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
755 PM CDT SUN JUN 15 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0710 PM     TSTM WND DMG     2 S WYANDOTTE           36.76N 94.72W
06/15/2008                   OTTAWA             OK   EMERGENCY MNGR

            NUMEROUS TREES DOWN, SOME AS LARGE AS 2 FEET IN DIAMETER
            NEAR HWY 60 AND BURLINGTON RAILROAD.

&&

PBS

Special weather statement, Jun 15, 8:14 PM CDT, 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
814 PM CDT SUN JUN 15 2008

ARZ001-002-160145-
BENTON AR-CARROLL AR-
814 PM CDT SUN JUN 15 2008

...SIGNIFICANT WEATHER ALERT...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 845 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHWEST ARKANSAS
     NORTHWESTERN CARROLL AND NORTHEASTERN BENTON

AT 814 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
GARFIELD...MOVING SOUTH AT 17 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...WALNUT HILL...BLAND...HILL TOP...
GATEWAY...WAR EAGLE...LOOKOUT...LARUE...GARFIELD...BEAVER LAKE AND
BUSCH.

THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
50 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE THE
SIGNIFICANT WEATHER ALERT IS UPGRADED TO A WARNING.

LAT...LON 3631 9386 3627 9387 3624 9402 3650 9407
      3650 9395 3650 9394 3650 9391 3650 9385
      3631 9372
TIME...MOT...LOC 0114Z 344DEG 15KT 3646 9395

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 7:05 PM CDT	Tornado Warning	TSA	Ottawa	55 min
Jun 15, 7:21 PM CDT	Tornado Warning	TSA	Delaware, Ottawa	54 min
Jun 15, 7:27 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	78 min
Jun 15, 7:40 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	80 min
Jun 15, 8:52 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware	53 min
Jun 15, 9:10 PM CDT	Special Weather Statement	TSA	Mayes	35 min
Jun 15, 9:29 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Wagoner	76 min
Jun 15, 9:51 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	54 min
Jun 15, 10:29 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	46 min
Jun 15, 10:32 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers	58 min
Jun 15, 10:39 PM CDT	Special Weather Statement	TSA	Cherokee, Sequoyah	66 min
Jun 15, 10:54 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	66 min
Jun 15, 11:11 PM CDT	Flash Flood Warning	TSA	Craig, Mayes, Nowata, Rogers	6 hr
Jun 15, 11:26 PM CDT	Severe Thunderstorm Warning	TSA	Rogers	64 min
Jun 15, 11:41 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	94 min
Jun 15, 11:54 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	66 min
Jun 15, 11:59 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers	61 min
Jun 16, 12:17 AM CDT	Severe Thunderstorm Warning	TSA	Rogers	58 min
Jun 16, 12:40 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Washington	95 min
Jun 16, 1:01 AM CDT	Flash Flood Warning	TSA	Osage, Pawnee	5 hr
Jun 16, 1:15 AM CDT	Severe Thunderstorm Warning	TSA	Rogers	45 min
Jun 16, 1:35 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Muskogee, Okmulgee, Rogers, Tulsa and 1 more	85 min
Jun 16, 2:02 AM CDT	Flash Flood Warning	TSA	Creek, Nowata, Osage, Rogers, Tulsa, Washington	4 hr
Jun 16, 2:16 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Tulsa	31 min
Jun 16, 2:25 AM CDT	Flash Flood Warning	TSA	Mayes, Rogers, Wagoner	4 hr
Jun 16, 2:34 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Muskogee, Okmulgee	56 min
Jun 16, 2:46 AM CDT	Special Weather Statement	TSA	Adair, Cherokee, Delaware, Muskogee, Sequoyah	59 min
Jun 16, 3:07 AM CDT	Special Weather Statement	TSA	Creek	23 min
Jun 16, 3:16 AM CDT	Flash Flood Warning	TSA	McIntosh, Muskogee, Okmulgee	3 hr
Jun 16, 3:27 AM CDT	Special Weather Statement	TSA	Haskell, McIntosh, Muskogee	33 min
Jun 16, 3:52 AM CDT	Special Weather Statement	TSA	Haskell, Latimer, LeFlore, Pittsburg, Sequoyah	53 min
Jun 16, 4:39 AM CDT	Special Weather Statement	TSA	Latimer, Pushmataha	81 min
Jun 16, 5:10 AM CDT	Areal Flood Warning	TSA	Craig, Mayes, Nowata, Rogers	6 hr
Jun 16, 5:30 AM CDT	River Flood Warning	TSA	Rogers, Tulsa	3 hr
Jun 16, 5:54 AM CDT	Special Weather Statement	TSA	Pushmataha	66 min
Jun 16, 6:39 AM CDT	Special Weather Statement	TSA	Tulsa, Washington	66 min
Jun 16, 7:44 AM CDT	Special Weather Statement	TSA	Craig, Creek, Delaware, Mayes, Okmulgee, Pawnee and 3 more	61 min
Jun 16, 8:33 AM CDT	River Flood Warning	TSA	Muskogee	4 days
Jun 16, 9:00 AM CDT	River Flood Warning	TSA	Rogers, Tulsa	60 hr
Jun 16, 1:54 PM CDT	Special Weather Statement	TSA	Osage, Pawnee	66 min
Jun 16, 1:57 PM CDT	River Flood Warning	TSA	Nowata	12 hr
Jun 16, 2:26 PM CDT	Flash Flood Warning	TSA	Creek, Osage, Pawnee, Tulsa	6 hr
Jun 16, 2:43 PM CDT	River Flood Warning	TSA	Creek	72 hr
Jun 16, 2:46 PM CDT	River Flood Warning	TSA	Washington	12 hr
Jun 16, 2:54 PM CDT	River Flood Warning	TSA	Osage, Tulsa	11 hr
Jun 16, 2:54 PM CDT	River Flood Warning	TSA	Tulsa	6 hr
Jun 16, 3:18 PM CDT	Special Weather Statement	TSA	Creek, McIntosh, Okfuskee, Okmulgee	57 min
Jun 16, 4:03 PM CDT	Special Weather Statement	TSA	McIntosh	57 min
Jun 16, 5:20 PM CDT	Special Weather Statement	TSA	Choctaw, Latimer, Pushmataha	70 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2008 Every severe thunderstorm warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.