Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 576, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jul 22, 2013, 6:07 PM CDT for Grant County, Kay County, Oklahoma. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 22, 2013, 6:07 PM CDT (23:07 UTC)
- Expired
- Jul 22, 2013, 7:00 PM CDT
- In force
- 53 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
Counties Grant County, OK, Kay County, OK
The radar
The Vance AFB radar (KVNX), 59 km from the middle of the area, began a volume at 23:08 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.
The nearest sounding before it
Lamont, OK (KLMN), launched 12:00Z, 11.1 hours before the alert went out and 21 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2765 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- -77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 22, 3:02 PM CDT, 3 hours 5 minutes earlier.
Area forecast discussion, Jul 22, 3:02 PM CDT, 3 hours 5 minutes before
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</html>Hazardous weather outlook, Jul 22, 3:06 PM CDT, 3 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
306 PM CDT MON JUL 22 2013
OKZ004>048-050>052-TXZ083>090-231000-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
306 PM CDT MON JUL 22 2013
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...THROUGH TONIGHT...
THUNDERSTORM OUTLOOK...
A FEW SEVERE STORMS ARE POSSIBLE OVER PARTS OF NORTHERN OKLAHOMA
THROUGH 8 PM THIS EVENING. DAMAGING WIND GUSTS UP TO 60 MPH AND
HAIL TO THE SIZE OF QUARTERS ARE THE MAIN HAZARDS.
A FEW THUNDERSTORMS ARE POSSIBLE THROUGH 8 PM THIS EVENING ACROSS
FAR SOUTHERN OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS AS WELL.
THESE STORMS ARE NOT EXPECTED TO BE STRONG OR SEVERE.
DISCUSSION...
A FEW THUNDERSTORMS MAY FORM NEAR AN OUTFLOW BOUNDARY IN FAR
NORTHERN OKLAHOMA AS WELL AS NEAR THE RED RIVER THROUGH 8 PM
WHERE CAPPING IS WEAKEST. STORMS ARE EXPECTED TO DIMINISH
TOWARDS SUNSET WITH THE LOSS OF DAYTIME HEATING.
WIDESPREAD SEVERE THUNDERSTORMS ARE UNLIKELY THROUGH TONIGHT.
PROBABILITY TABLE...
VALID THROUGH 700 AM CDT TUESDAY JUL 23.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...60 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...20 PERCENT.
OTHER HAZARDOUS WEATHER...
HOT AND HUMID CONDITIONS WILL DEVELOP THIS AFTERNOON. PLEASE
TAKE PRECAUTIONS TO AVOID HEAT RELATED ILLNESSES.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...
THUNDERSTORM OUTLOOK...
STORM CHANCES WILL CONTINUE TUESDAY THROUGH THE WEEKEND
ACROSS PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS. A FEW
STRONG TO SEVERE THUNDERSTORMS WITH STRONG WINDS AND HEAVY
RAINFALL WILL BE POSSIBLE.
OTHER HAZARDOUS WEATHER...
LOCALLY HEAVY RAINFALL TUESDAY THROUGH THE WEEKEND MAY
CAUSE FLOODING.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY
5 AM TUESDAY.
EM/MBSIn the hours before
Special weather statement, Jul 22, 5:58 PM CDT, 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 558 PM CDT MON JUL 22 2013 OKZ007-008-222330- GRANT OK-KAY OK- 558 PM CDT MON JUL 22 2013 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN GRANT AND NORTHWESTERN KAY COUNTIES UNTIL 630 PM CDT... AT 550 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED APPROXIMATELY 20 MILES NORTH OF REDFROW...MOVING SOUTHEAST AT 35 MPH. THIS STORM COULD AFFECT NORTHERN PORTIONS OF GRANT AND KAY COUNTY BY 620 PM. HAZARDS INCLUDE... WIND GUSTS OF 60 TO 70 55 MPH... LARGE HAIL... MINOR FLOODING IN AREAS OF POOR DRAINAGE... FREQUENT CLOUD TO GROUND LIGHTNING... PRECAUTIONARY/PREPAREDNESS ACTIONS... MONITOR THE SITUATION CLOSELY. BE READY TO ACT QUICKLY IF A WARNING IS ISSUED OR IF STORMS THREATEN YOU. && LAT...LON 3699 9779 3699 9720 3670 9719 3665 9764 TIME...MOT...LOC 2250Z 331DEG 29KT 3713 9767 30
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 5:58 PM CDT | Special Weather Statement | OUN | Grant | 32 min |
| Jul 22, 6:58 PM CDT | Severe Thunderstorm Warning | OUN | Grant, Kay | 47 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2013Every severe thunderstorm warning in 2013
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.