Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 607, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Oct 14, 2007, 7:37 PM CDT for Canadian County, Oklahoma. It was in force for 38 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
- Oct 14, 2007, 7:37 PM CDT (00:37 UTC)
- Expired
- Oct 14, 2007, 8:15 PM CDT
- In force
- 38 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
County Canadian County, OK
The radar
The Norman radar (KTLX), 67 km from the middle of the area, began a volume at 00:40 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 |
|---|---|---|---|
| Oct 14, 8:05 PM CDT | HAIL 0.88 | 2 E Niles, OK |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 14, 3:47 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.6 hours before the alert went out and 60 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
- 823 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1097 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KOUN 150037
SVROUN
OKC017-150115-
/O.NEW.KOUN.SV.W.0607.071015T0037Z-071015T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
737 PM CDT SUN OCT 14 2007
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CANADIAN COUNTY IN CENTRAL OKLAHOMA...
* UNTIL 815 PM CDT
* AT 737 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 21 MILES SOUTHWEST OF CALUMET...MOVING
NORTHEAST AT 40 MPH. HAIL UP TO THE SIZE OF NICKELS AND WINDS OF
65 MPH ARE LIKELY.
* LOCATIONS IN THE WARNING INCLUDE CALUMET...CONCHO...EL RENO...
OKARCHE AND UNION CITY.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 104 AND 131.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO ADVANCE WARNING.
MOVE IMMEDIATELY TO A STORM SHELTER... BASEMENT OR STURDY BUILDING IF
A TORNADO IS SIGHTED.
LAT...LON 3535 9784 3536 9794 3537 9794 3536 9796
3537 9803 3538 9804 3538 9830 3572 9830
3573 9784
TIME...MOT...LOC 0037Z 236DEG 37KT 3539 9837
$$
BURKE2 follow-up statements
000
WWUS54 KOUN 150105
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
805 PM CDT SUN OCT 14 2007
OKC017-150115-
/O.CON.KOUN.SV.W.0607.000000T0000Z-071015T0115Z/
CANADIAN OK-
805 PM CDT SUN OCT 14 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR CANADIAN COUNTY...
AT 805 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES WEST OF
OKARCHE TO 14 MILES WEST OF UNION CITY...MOVING NORTHEAST AT 40 MPH.
* LOCATIONS IN THE WARNING INCLUDE CALUMET...CONCHO...EL RENO...
OKARCHE AND UNION CITY.
HAIL UP TO THE SIZE OF PENNIES AND WINDS OF 60 MPH ARE LIKELY.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO ADVANCE WARNING.
MOVE IMMEDIATELY TO A STORM SHELTER... BASEMENT OR STURDY BUILDING IF
A TORNADO IS SIGHTED.
LAT...LON 3535 9784 3536 9794 3537 9794 3536 9796
3537 9803 3538 9804 3538 9830 3572 9830
3573 9784
TIME...MOT...LOC 0105Z 236DEG 37KT 3572 9802 3541 9812
$$
BURKE000
WWUS54 KOUN 150115
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
814 PM CDT SUN OCT 14 2007
OKC017-150124-
/O.EXP.KOUN.SV.W.0607.000000T0000Z-071015T0115Z/
CANADIAN OK-
814 PM CDT SUN OCT 14 2007
...THE SEVERE THUNDERSTORM WARNING FOR CANADIAN COUNTY EXPIRES AT 815
PM CDT...
THE STORMS HAD WEAKENED...AND WERE NO LONGER SEVERE. SMALL HAIL AND
WIND GUSTS UP TO 50 MPH ARE STILL LIKELY AS THIS LINE OF STORMS
MOVES INTO THE OKLAHOMA CITY METRO AREA.
LAT...LON 3535 9784 3536 9794 3537 9794 3536 9796
3537 9803 3538 9804 3538 9830 3572 9830
3573 9784
TIME...MOT...LOC 0114Z 236DEG 37KT 3577 9792 3546 9802
$$
BURKSThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 14, 7:05 PM CDT | Severe Thunderstorm Warning | OUN | Caddo | 40 min |
| Oct 14, 7:31 PM CDT | Severe Thunderstorm Warning | OUN | Kiowa | 29 min |
| Oct 14, 7:42 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Grady | 48 min |
| Oct 14, 8:03 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Tillman | 42 min |
| Oct 14, 8:23 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 33 min |
| Oct 14, 8:37 PM CDT | Severe Thunderstorm Warning | OUN | Canadian, Oklahoma | 38 min |
| Oct 14, 8:43 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 47 min |
| Oct 14, 8:53 PM CDT | Severe Thunderstorm Warning | OUN | Cotton, Tillman | 52 min |
| Oct 14, 9:45 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Tillman | 45 min |
| Oct 14, 10:00 PM CDT | Severe Thunderstorm Warning | OUN | Grady, Stephens | 45 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2007Every severe thunderstorm warning in 2007
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.