Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 310, NWS Norman, OK

June 1, 2007Grant County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 1, 2007, 6:46 PM CDT for Grant County, Oklahoma. It was in force for 44 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 1, 2007, 6:46 PM CDT (23:46 UTC)
Expired
Jun 1, 2007, 7:30 PM CDT
In force
44 min
Issued by
NWS Norman, OK
Area
Counties, with a storm outline in the text

County Grant County, OK

The radar

The Vance AFB radar (KVNX), 26 km from the middle of the area, began a volume at 23:46 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

TimeReportWhereRemark
Jun 1, 6:55 PM CDTHAIL 0.88Pond Creek, OKDIME TO NICKEL SIZE HAIL

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

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 11.8 hours before the alert went out and 34 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, Lamont, OK at 12:00Z on 2007-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lamont, OK at 12:00Z on 2007-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -133 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1487 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-133 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KOUN 012346
SVROUN
OKC053-020030-
/O.NEW.KOUN.SV.W.0310.070601T2346Z-070602T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
646 PM CDT FRI JUN 1 2007

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GRANT COUNTY IN NORTHERN OKLAHOMA...

* UNTIL 730 PM CDT

* AT 646 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES EAST OF NASH...MOVING NORTH AT 10
  MPH. HAIL UP TO THE SIZE OF QUARTERS AND WINDS OF 60 MPH ARE 
  LIKELY.

* LOCATIONS IN THE WARNING INCLUDE DEER CREEK...JEFFERSON...LAMONT...
  MEDFORD...NASH...POND CREEK...RENFROW AND WAKITA.

TAKE SHELTER FROM THE STORM IN A STURDY BUILDING. BOATERS ON AREA
LAKES SHOULD RETURN TO SHORE. DO NOT SEEK SHELTER UNDER ISOLATED
TREES AS THESE ARE TARGETS FOR LIGHTNING. AVOID LOW LYING AREAS AND
FLOODING ROADWAYS.

LAT...LON 3660 9808 3659 9747 3692 9754 3694 9800

$$

JAMES
2 follow-up statements
000 
WWUS54 KOUN 020003 RRA
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
702 PM CDT FRI JUN 1 2007

OKC053-020030-
/O.CON.KOUN.SV.W.0310.000000T0000Z-070602T0030Z/
GRANT OK-
702 PM CDT FRI JUN 1 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR GRANT COUNTY...

AT 702 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED 
SEVERE THUNDERSTORMS BETWEEN JEFFERSON AND POND CREEK...MOVING NORTH 
AT 10 MPH. AT 655 PM...AN AMATEUR RADIO OPERATOR REPORTED NICKEL 
SIZE HAIL IN POND CREEK.

* LOCATIONS IN THE WARNING INCLUDE DEER CREEK...JEFFERSON...LAMONT...
  MEDFORD...NASH...POND CREEK...RENFROW AND WAKITA.

TAKE SHELTER FROM THE STORM IN A STURDY BUILDING. DO NOT SEEK 
SHELTER UNDER ISOLATED TREES AS THESE ARE TARGETS FOR LIGHTNING. 
AVOID LOW LYING AREAS AND FLOODING ROADWAYS.

LAT...LON 3660 9808 3659 9747 3692 9754 3694 9800

$$

JAMES
000 
WWUS54 KOUN 020012 CCA
SVSOUN

SEVERE WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE NORMAN OK
703 PM CDT FRI JUN 1 2007

OKC053-020030-
/O.COR.KOUN.SV.W.0310.000000T0000Z-070602T0030Z/
GRANT OK-
703 PM CDT FRI JUN 1 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR GRANT COUNTY...

AT 703 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
SEVERE THUNDERSTORM 4 MILES WEST OF JEFFERSON...MOVING NORTH AT 10 
MPH. ANOTHER SEVERE THUNDERSTORM HAS DEVELOPED BETWEEN MEDFORD AND 
RENFROW.

THESE STORMS WILL BE ACCOMPANIED BY QUARTER SIZE HAIL...WINDS TO 60 
MPH AND TORRENTIAL RAIN.

* LOCATIONS IN THE WARNING INCLUDE DEER CREEK...JEFFERSON...LAMONT...
  MEDFORD...NASH...POND CREEK...RENFROW AND WAKITA.

LAT...LON 3660 9808 3659 9747 3692 9754 3694 9800

$$

JAMES

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 10:25 PM CDTSevere Thunderstorm WarningOUNHarper65 min
May 31, 10:45 PM CDTSevere Thunderstorm WarningOUNEllis45 min
May 31, 11:21 PM CDTSevere Thunderstorm WarningOUNCuster, Washita39 min
May 31, 11:22 PM CDTSevere Thunderstorm WarningOUNWoods, Woodward53 min
May 31, 11:32 PM CDTSevere Thunderstorm WarningOUNEllis58 min
May 31, 11:35 PM CDTTornado WarningOUNWoods25 min
May 31, 11:58 PM CDTTornado WarningOUNWoods32 min
Jun 1, 12:10 AM CDTSevere Thunderstorm WarningOUNCuster37 min
Jun 1, 12:16 AM CDTSevere Thunderstorm WarningOUNMajor, Woodward59 min
Jun 1, 12:20 AM CDTTornado WarningOUNAlfalfa40 min
Jun 1, 12:22 AM CDTSevere Thunderstorm WarningOUNAlfalfa38 min
Jun 1, 12:28 AM CDTSevere Thunderstorm WarningOUNBlaine47 min
Jun 1, 12:43 AM CDTSevere Thunderstorm WarningOUNGrant62 min
Jun 1, 1:02 AM CDTSevere Thunderstorm WarningOUNWashita16 min
Jun 1, 1:03 AM CDTSevere Thunderstorm WarningOUNTillman57 min
Jun 1, 1:06 AM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher54 min
Jun 1, 1:13 AM CDTSevere Thunderstorm WarningOUNCaddo47 min
Jun 1, 1:27 AM CDTSevere Thunderstorm WarningOUNKay, Noble78 min
Jun 1, 1:41 AM CDTSevere Thunderstorm WarningOUNBlaine49 min
Jun 1, 1:46 AM CDTSevere Thunderstorm WarningOUNEllis, Harper, Woodward59 min
Jun 1, 2:10 AM CDTSevere Thunderstorm WarningOUNCanadian, Kingfisher50 min
Jun 1, 2:55 AM CDTSevere Thunderstorm WarningOUNPayne50 min
Jun 1, 3:24 AM CDTHigh Wind WarningOUNTillman73 min
Jun 1, 3:26 PM CDTSevere Thunderstorm WarningOUNCaddo, Grady49 min
Jun 1, 4:13 PM CDTSevere Thunderstorm WarningOUNCaddo47 min
Jun 1, 4:31 PM CDTSevere Thunderstorm WarningOUNPayne44 min
Jun 1, 4:56 PM CDTFlash Flood WatchOUNCaddo, Canadian, Carter, Cleveland, Comanche, Cotton and 17 more6 hr
Jun 1, 4:57 PM CDTSevere Thunderstorm WarningOUNCaddo, Grady48 min
Jun 1, 5:08 PM CDTSevere Thunderstorm WarningOUNLogan, Payne52 min
Jun 1, 5:11 PM CDTSevere Thunderstorm WarningOUNPayne49 min
Jun 1, 5:42 PM CDTSevere Thunderstorm WarningOUNGrady63 min
Jun 1, 5:56 PM CDTSevere Thunderstorm WarningOUNNoble, Payne49 min
Jun 1, 6:22 PM CDTSevere Thunderstorm WarningOUNMcClain38 min
Jun 1, 6:31 PM CDTSevere Thunderstorm WarningOUNMajor44 min
Jun 1, 6:39 PM CDTSevere Thunderstorm WarningOUNCleveland53 min
Jun 1, 6:42 PM CDTSevere Thunderstorm WarningOUNCotton, Tillman48 min
Jun 1, 6:44 PM CDTSevere Thunderstorm WarningOUNGrady46 min
Jun 1, 6:44 PM CDTSevere Thunderstorm WarningOUNPayne35 min
Jun 1, 6:54 PM CDTSevere Thunderstorm WarningOUNMcClain36 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.