Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 348, NWS Norman, OK

May 5, 2008Woods County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 5, 2008, 4:56 PM CDT for Woods County, Oklahoma. It was in force for 64 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
May 5, 2008, 4:56 PM CDT (21:56 UTC)
Expired
May 5, 2008, 6:00 PM CDT
In force
64 min
Issued by
NWS Norman, OK
Area
Storm-based polygon

County Woods County, OK

The radar

The Vance AFB radar (KVNX), 66 km from the middle of the area, began a volume at 21:57 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

Dodge City, (KDDC), launched 12:00Z, 9.9 hours before the alert went out and 144 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, Dodge City, at 12:00Z on 2008-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 117 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, Dodge City, at 12:00Z on 2008-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 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
117 J/kg
Mixed-layer CIN
-217 J/kg
Mixed-layer LCL
1216 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.6

Open this sounding in Storm Lab

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 May 5, 2:18 PM CDT, 2 hours 38 minutes earlier.

Area forecast discussion, May 5, 2:18 PM CDT, 2 hours 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
218 PM CDT MON MAY 5 2008

.DISCUSSION...
THE CURRENT RAIN AND THUNDERSTORMS ACROSS SOUTH CENTRAL ARE
EXPECTED TO CONTINUE THEIR SLOW MOVEMENT THIS AFTERNOON. OTHER
STORMS THAT DEVELOP ACROSS SOUTHWEST KANSAS LIKELY WILL MOVE INTO
NORTHWEST OKLAHOMA THIS EVENING.

BY TOMORROW AFTERNOON THE UPPER LOW AND DRY LINE TO THE WEST OF
OKLAHOMA WILL BECOME THE FOCUS FOR MORE AND STRONGER
THUNDERSTORMS. IN THE EVENING STORM OFF THE DRY LINE WILL AFFECT
WESTERN OKLAHOMA, THEN OVERNIGHT MORE STORMS OR A COMPLEX OF
STORMS IS EXPECTED TO DEVELOP IN THE LOW LEVEL JET. THE EXPECTED
TRACK OF THE UPPER ACROSS THE RED RIVER REGION AND THE SURFACE LOW
WEDNESDAY MAY LEAD TO SEVERAL MODES OF THUNDERSTORM DEVELOPMENT.
ONCE THE UPPER LOW IS EAST OF CENTRAL OKLAHOMA WEDNESDAY NIGHT,
DRIER AND MILD WEATHER IS EXPECTED INTO SATURDAY. NEXT CHANCE OF
RAIN COMES LATE SATURDAY OR SUNDAY WITH A WAVE THROUGH THE CENTRAL
PLAINS AND THE ASSOCIATED COLD FRONT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  62  79  64  74 /  40  40  50  60
HOBART OK         63  82  63  78 /  50  20  60  40
WICHITA FALLS TX  66  82  64  82 /  50  20  60  40
GAGE OK           62  85  62  77 /  40  20  40  40
PONCA CITY OK     64  78  66  76 /  30  40  40  70
DURANT OK         62  77  64  79 /  30  40  40  60

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

99/99
Hazardous weather outlook, May 5, 11:55 AM CDT, 5 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1155 AM CDT MON MAY 5 2008

OKZ004>048-050>052-TXZ083>090-061200-
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-
1155 AM CDT MON MAY 5 2008

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS EVENING AND
TONIGHT ACROSS PORTIONS OF WESTERN OKLAHOMA.

LOCATION...
THE AREA OF GREATEST RISK FOR SEVERE STORMS IS WEST OF A LINE FROM
CHEROKEE... TO ELK CITY TO HOLLIS.

TIMING...
THE BEST CHANCES FOR SEVERE STORMS WILL BE AFTER 8 PM THIS EVENING
THROUGH THE OVERNIGHT HOURS.

IMPACTS...
HAIL TO THE SIZE OF PENNIES AND WIND GUSTS TO 60 MPH WILL BE THE
MAIN THREATS FROM THE STORMS.

DISCUSSION...
SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS AFTERNOON OVER WESTERN
NORTH TEXAS... AND FAR SOUTHWESTERN OKLAHOMA... WITHIN A BROAD AXIS
OF GULF MOISTURE OVERSPREADING THE SOUTHERN PLAINS. MOST OF THESE
STORMS ARE NOT EXPECTED TO BE SEVERE... BUT ISOLATED SEVERE STORMS
WITH DIME-SIZE HAIL WILL BE POSSIBLE.

CONDITIONS WILL BECOME FAVORABLE FOR MORE WIDESPREAD STRONG... AND
POSSIBLY SEVERE... THUNDERSTORM DEVELOPMENT THIS AFTERNOON ACROSS
THE HIGH PLAINS WEST OF OKLAHOMA. THESE STORMS WILL MOVE EAST INTO
WESTERN OKLAHOMA THIS EVENING AND OVERNIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT TUESDAY MAY 6.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...30 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORM CHANCES WILL CONTINUE ACROSS OKLAHOMA AND WESTERN NORTH
TEXAS TUESDAY AND WEDNESDAY AS A STRONG UPPER STORM SYSTEM
APPROACHES THE SOUTHERN PLAINS. SEVERE THUNDERSTORMS WILL BE
POSSIBLE BOTH DAYS AS MODEST AMOUNTS OF INSTABILITY AND FAVORABLE
WIND PROFILES WILL EXIST.

OTHER HAZARDOUS WEATHER...
NONE.

NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 7 AM
TUESDAY.

CMS

In the hours before

Special weather statement, May 5, 3:26 PM CDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
326 PM CDT MON MAY 5 2008

OKZ004-005-010-052045-
WOODWARD OK-HARPER OK-WOODS OK-
326 PM CDT MON MAY 5 2008

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR HARPER...WOODS AND WOODWARD
COUNTIES.

A STRONG THUNDERSTORM WAS LOCATED 7 MILES NORTHWEST OF PLAINVIEW AT
326 PM CDT...MOVING NORTHEAST AT 18 MPH.

SMALL HAIL IS POSSIBLE.

PEOPLE IN HARPER...WOODS AND WOODWARD COUNTIES SHOULD MONITOR THE
WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR
THREATENING WEATHER CONDITIONS.
Local storm report, May 5, 4:21 PM CDT, 35 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 3:51 PM CDTSevere Thunderstorm WarningOUNWoods39 min
May 5, 4:22 PM CDTSevere Thunderstorm WarningOUNWoods38 min
May 5, 5:21 PM CDTAreal Flood AdvisoryOUNWoods114 min
May 5, 5:59 PM CDTSevere Thunderstorm WarningOUNWoods46 min
May 5, 6:45 PM CDTSevere Thunderstorm WarningOUNWoods45 min
May 5, 10:27 AM CDTSevere Thunderstorm WarningOUNBaylor, Wichita, Wilbarger33 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2008Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.