Alert archive / Georgia / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 239, NWS Atlanta, GA

May 25, 2006Cherokee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 25, 2006, 4:27 PM EDT for Cherokee County, Georgia. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 25, 2006, 4:27 PM EDT (20:27 UTC)
Expired: May 25, 2006, 5:00 PM EDT
In force: 33 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Cherokee County, GA

The radar

The Atlanta radar (KFFC), 99 km from the middle of the area, began a volume at 20:27 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 98 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: 168 J/kg
Mixed-layer CIN: -181 J/kg
Mixed-layer LCL: 1520 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 40 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 
WUUS52 KFFC 252029
SVRFFC
GAC057-252100-
/O.NEW.KFFC.SV.W.0239.060525T2027Z-060525T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
427 PM EDT THU MAY 25 2006

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 500 PM EDT

* AT 427 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER OR LARGER SIZED   
  HAIL...AND DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED    
  NEAR BALL GROUND...AND MOVING EAST AT 20 MPH. ANOTHER SEVERE STORM 
  WAS JUST WEST OF WOODSTOCK IN SOUTHERN CHEROKEE COUNTY WITH THE    
  SAME MOVEMENT.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO      
  WOODSTOCK...LEBANON...HOLLY SPRINGS...CANTON AND BUFFINGTON.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3437 8462 3410 8465 3409 8445 3421 8426
      3438 8426

$$

1 follow-up statement

000 
WWUS52 KFFC 252042
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
440 PM EDT THU MAY 25 2006

GAC057-252100-
/O.CON.KFFC.SV.W.0239.000000T0000Z-060525T2100Z/
CHEROKEE GA-
440 PM EDT THU MAY 25 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR CHEROKEE COUNTY...

AT 436 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED NEAR
WOODSTOCK...MOVING EAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HOLLY 
SPRINGS...AND FREE HOME.

PENNY SIZED HAIL WAS REPORTED IN WOODSTOCK WITH THIS STORM AT 435 
PM. IF YOU ARE IN THE PATH OF THE STORM...TAKE IMMEDIATE ACTION TO 
PROTECT LIFE AND PROPERTY.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3437 8462 3410 8465 3409 8445 3421 8426
      3438 8426

$$

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 Atlanta, GA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 25, 2:53 PM EDT, 1 hour 34 minutes earlier.

Area forecast discussion, May 25, 2:53 PM EDT, 1 hour 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
253 PM EDT THU MAY 25 2006

.SHORT TERM...(TONIGHT THROUGH SATURDAY NIGHT)
OUTFLOW ASSOCIATED WITH A MCS THAT MOVED THROUGH THE TENNESSEE
VALLEY THIS MORNING CONTINUES TO PUSH THROUGH NORTH GEORGIA.
SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG THIS
BOUNDARY THROUGH THIS EVENING AS IT CONTINUES TO PUSH ACROSS
NORTHERN GEORGIA. THESE STORMS HAVE THE POTENTIAL TO BECOME SEVERE
WITH DEW POINTS CONTINUING TO INCREASE ACROSS NORTH GEORGIA. THESE
STORMS SHOULD DISSIPATE SHORTLY AFTER SUNSET AS CONVECTIVE
TEMPERATURES COOL. FRIDAY THERE IS A CHANCE FOR SHOWERS AND
THUNDERSTORMS ACROSS THE ENTIRE COUNTY WARNING AREA AS THE SOUTHERN
EDGE OF THE FRONT BRUSHES ACROSS NORTHERN GEORGIA. THE MOST LIKELY
AREA FOR CONVECTION FRIDAY AFTERNOON WILL BE ACROSS NORTH GEORGIA.
THE GFS DEVELOPS A MCS OVER NORTHERN GEORGIA LATE FRIDAY AND PUSHED
IT ACROSS INTO CENTRAL GEORGIA BY 6Z ON SATURDAY.  I HAVE NOT
COMPLETELY BOUGHT INTO THIS AND HAVE CHOSEN INSTEAD TO GO WITH 30-40
POPS AS THIS SYSTEM PUSHES THROUGH. THE NAM IS NOT NEARLY AS
AGGRESSIVE WITH THIS SYSTEM AND KEEPS MOST OF THE MOISTURE ACROSS
NORTH GEORGIA WITH THE SYSTEM DISSIPATING ACROSS SOUTHERN GEORGIA.
THIS WILL BE THE MAIN AREA OF CONCERN TO WATCH THROUGH THE SHORT
TERM. SATURDAY MORNING THERE MAY BE A FEW LINGERING SHOWERS AND
THUNDERSTORMS ACROSS THE SOUTHWEST ASSOCIATED WITH THE PREVIOUS
SYSTEM CONTINUING TO PUSH SOUTHWARD WHERE THE GFS STALLS THIS SYSTEM
OUT. SATURDAY WILL BRING SLIGHT CHANCE POPS ACROSS THE CWA WITH
TYPICAL AFTERNOON ISOLATED SHOWERS AND THUNDERSTORMS POSSIBLE
THROUGH SATURDAY EVENING. HIGH TEMPS ACROSS NORTH GEORGIA WILL
CONTINUE TO PUSH INTO THE MID TO UPPER 80S WITH LOWER 90S ACROSS
CENTRAL GEORGIA. LOWS WILL BE IN THE MID TO UPPER 60S ACROSS THE CWA.

.LONG TERM...(SUNDAY THROUGH THURSDAY)
TYPICAL SUMMER AFTERNOON/EVENING SHOWER AND THUNDERSTORMS WILL
CONTINUE TO BE POSSIBLE ACROSS THE CWA THROUGH THE LONG TERM.
DAYTIME HEATING WILL ALLOW FOR ISOLATED SHOWERS AND THUNDERSTORMS TO
DEVELOP. GFS DOES NOT DEPICT VERY HIGH RH VALUES UNTIL THE END OF
LONGTERM AS UPPER LEVEL HIGH REMAINS OVER THE GULF OF MEXICO THROUGH
THE LONG TERM. AS UPPER LEVEL HIGH BEGINS TO PUSH OFF TOWARDS
FLORIDA LATE THURSDAY RH VALUES INCREASE ACROSS GEORGIA. ONLY
CARRYING 30 POPS AS IT APPROACHES THE END OF THE FORECAST PERIOD.

&&

.PRELIMINARY POINT TEMPS/POPS...
ATLANTA         68  86  68  87 /  20  20  30  20
ATHENS          66  87  66  91 /  20  20  30  20
GAINESVILLE     67  85  65  88 /  30  30  30  20
ROME            66  90  65  92 /  30  30  30  20
COLUMBUS        69  94  70  91 /  10  20  40  20
MACON           67  91  67  92 /  10  20  40  20

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

22

Hazardous weather outlook, May 25, 4:05 PM EDT, 22 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
405 PM EDT THU MAY 25 2006

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-261000-
BALDWIN-BANKS-BARROW-BARTOW-BIBB-BLECKLEY-BUTTS-CARROLL-CATOOSA-
CHATTAHOOCHEE-CHATTOOGA-CHEROKEE-CLARKE-CLAYTON-COBB-COWETA-
CRAWFORD-CRISP-DADE-DAWSON-DEKALB-DODGE-DOOLY-DOUGLAS-EMANUEL-
FANNIN-FAYETTE-FLOYD-FORSYTH-GILMER-GLASCOCK-GORDON-GREENE-
GWINNETT-HALL-HANCOCK-HARALSON-HARRIS-HEARD-HENRY-HOUSTON-JACKSON-
JASPER-JEFFERSON-JOHNSON-JONES-LAMAR-LAURENS-LUMPKIN-MACON-
MADISON-MARION-MERIWETHER-MONROE-MONTGOMERY-MORGAN-MURRAY-
MUSCOGEE-NEWTON-NORTH FULTON-OCONEE-OGLETHORPE-PAULDING-PEACH-
PICKENS-PIKE-POLK-PULASKI-PUTNAM-ROCKDALE-SCHLEY-SOUTH FULTON-
SPALDING-STEWART-SUMTER-TALBOT-TALIAFERRO-TAYLOR-TELFAIR-TOOMBS-
TOWNS-TREUTLEN-TROUP-TWIGGS-UNION-UPSON-WALKER-WALTON-WARREN-
WASHINGTON-WEBSTER-WHEELER-WHITE-WHITFIELD-WILCOX-WILKES-
WILKINSON-
405 PM EDT THU MAY 25 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT
ISOLATED SEVERE THUNDERSTORMS POSSIBLE THROUGH TONIGHT ACROSS
EXTREME NORTH GEORGIA.

.SYNOPSIS...
UPPER LEVEL SYSTEM MOVING SOUTHEAST INTO OHIO VALLEY WILL RESULT
IN INCREASING SOUTHWESTERLY FLOW AND MOISTURE OVER NORTH AND CENTRAL
GEORGIA THROUGH TONIGHT.

.PRIMARY HAZARDS...
THE PRIMARY HAZARD FROM ANY THUNDERSTORMS WILL BE LARGE HAIL AND
DAMAGING WINDS IN ADDITION TO LIGHTNING. THIS EVENING...THE THREAT
FOR ISOLATED SEVERE THUNDERSTORMS SHOULD BE CONFINED TO AREAS NORTH
OF A LINE FROM ROME TO ATHENS.

.DISCUSSION...
THE TAIL END OF AN UPPER LOW MOVING THROUGH THE OHIO VALLEY WILL
SWEEP ACROSS NORTH GEORGIA THIS EVENING AND OVERNIGHT. A SECONDARY
SHORT WAVE WILL MOVE ACROSS THE AREA FROM THE NORTHWEST TOMORROW.
LOW AND MID-LEVEL MOISTURE WILL BE ON THE INCREASE ACROSS THE REGION
THROUGH TONIGHT AS THIS PATTERN EVOLVES. A MARKEDLY MORE UNSTABLE
AIR MASS WILL BE NOTED ACROSS NORTH GEORGIA...THROUGH THE EVENING
HOURS WITH CAPES IN EXCESS OF 1500 AND LIFTED INDICES AS LOW AS -6
IN THE EXTREME NORTH PORTION OF THE STATE. ALTHOUGH UPPER DYNAMICS
ARE WEAK...THE INSTABILITY COMBINED WITH INCREASING MOISTURE AND THE
WEAK UPPER TROUGH WILL BE SUFFICIENT FOR ISOLATED SEVERE
THUNDERSTORM DEVELOPMENT IN THE EXTREME NORTH. CONVECTION MAY
CONTINUE OVERNIGHT...ALBEIT IN A WEAKENING STATE...TOWARD ATLANTA
AND ATHENS AFTER MIDNIGHT BEFORE DISSIPATING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS NORTH AND CENTRAL
GEORGIA FRIDAY AS A SECONDARY AND SLIGHTLY STRONGER UPPER TROUGH
MOVES THROUGH THE AREA FROM THE NORTHWEST. DESPITE WEAK
DYNAMICS...A VERY UNSTABLE AIR MASS WILL SUPPORT THE POTENTIAL FOR
A FEW OF THESE THUNDERSTORMS TO BECOME SEVERE. FOR THE PERIOD
SATURDAY THROUGH WEDNESDAY...A TYPICAL SUMMERTIME PATTERN WILL BE
IN PLACE AND SUPPORT ISOLATED TO SCATTERED MAINLY AFTERNOON AND
EVENING THUNDERSTORMS AREAWIDE.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS SHOULD REMAIN ALERT FOR POSSIBLE ACTIVATION ACROSS NORTH
GEORGIA THIS AFTERNOON OR EVENING. EMERGENCY MANAGERS SHOULD
MONITOR THE SITUATION.

In the hours before

Special weather statement, May 25, 3:31 PM EDT, 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
331 PM EDT THU MAY 25 2006

GAZ012-252000-
331 PM EDT THU MAY 25 2006

...SIGNIFICANT WEATHER ALERT FOR FREQUENT LIGHTNING...PEA SIZED HAIL
AND 45 MPH WINDS IN GORDON COUNTY UNTIL 400 PM EDT...

AT 331 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER OAKMAN...AND MOVING EAST AT 10 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 45 MPH AS IT MOVES
ACROSS NORTHEAST GORDON COUNTY. BRIEF HEAVY DOWNPOURS MAY CAUSE
PONDING OF WATER ON ROADWAYS.

Local storm report, May 25, 3:42 PM EDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
342 PM EDT THU MAY 25 2006

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

0305 PM     HAIL             OAKMAN                  34.57N 84.71W
05/25/2006  E0.75 INCH       GORDON             GA   PUBLIC

0315 PM     HAIL             CHERRY LOG              34.78N 84.39W
05/25/2006  E1.00 INCH       GILMER             GA   PUBLIC

&&

LPR

Special weather statement, May 25, 3:43 PM EDT, 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
343 PM EDT THU MAY 25 2006

GAZ007-252045-
343 PM EDT THU MAY 25 2006

...SIGNIFICANT WEATHER ALERT FOR FREQUENT LIGHTNING...PEA SIZED HAIL
AND 45 MPH WINDS IN GILMER COUNTY UNTIL 445 PM EDT...

AT 343 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM ABOUT 5 MILES WEST OF TALONA...AND MOVING EAST
AT 15 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 45 MPH AS IT MOVES
ACROSS MAINLY SOUTHERN GILMER COUNTY. SOME LOCATIONS IN THE PATH OF
THIS STORM INCLUDE TALONA AND WHITESTONE. BRIEF HEAVY DOWNPOURS MAY
CAUSE PONDING OF WATER ON ROADWAYS.

Local storm report, May 25, 4:09 PM EDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
409 PM EDT THU MAY 25 2006

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

0400 PM     HAIL             3 NE BALL GROUND        34.37N 84.34W
05/25/2006  E0.75 INCH       CHEROKEE           GA   EMERGENCY MNGR

&&

LPR

Local storm report, May 25, 4:20 PM EDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
420 PM EDT THU MAY 25 2006

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

0415 PM     HAIL             DAHLONEGA               34.54N 83.98W
05/25/2006  E0.75 INCH       LUMPKIN            GA   PUBLIC

&&

LPR

Local storm report, May 25, 4:25 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
425 PM EDT THU MAY 25 2006

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

0420 PM     HAIL             4 W WOODSTOCK           34.10N 84.58W
05/25/2006  E0.75 INCH       CHEROKEE           GA   PUBLIC

&&

LPR

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 1:38 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Dawson, Forsyth	22 min
May 25, 1:57 PM EDT	Severe Thunderstorm Warning	FFC	Hall	33 min
May 25, 2:11 PM EDT	Severe Thunderstorm Warning	FFC	Gilmer, Murray	49 min
May 25, 2:25 PM EDT	Severe Thunderstorm Warning	FFC	White	20 min
May 25, 2:30 PM EDT	Severe Thunderstorm Warning	FFC	Hall	15 min
May 25, 2:58 PM EDT	Severe Thunderstorm Warning	FFC	Gilmer	47 min
May 25, 2:59 PM EDT	Severe Thunderstorm Warning	FFC	Gordon	31 min
May 25, 3:00 PM EDT	Severe Thunderstorm Warning	FFC	Fannin	30 min
May 25, 3:04 PM EDT	Severe Thunderstorm Warning	FFC	Pickens	56 min
May 25, 3:37 PM EDT	Severe Thunderstorm Warning	FFC	Madison	23 min
May 25, 3:39 PM EDT	Severe Thunderstorm Warning	FFC	Lumpkin	51 min
May 25, 3:47 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	28 min
May 25, 3:54 PM EDT	Tornado Warning	FFC	Cherokee	36 min
May 25, 3:59 PM EDT	Severe Thunderstorm Warning	FFC	Madison	18 min
May 25, 4:03 PM EDT	Severe Thunderstorm Warning	FFC	Dawson	42 min
May 25, 4:05 PM EDT	Severe Thunderstorm Warning	FFC	Bartow	25 min
May 25, 4:09 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth	51 min
May 25, 4:13 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	47 min
May 25, 4:19 PM EDT	Severe Thunderstorm Warning	FFC	Hall	56 min
May 25, 4:38 PM EDT	Severe Thunderstorm Warning	FFC	Fulton	37 min
May 25, 4:54 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	35 min
May 25, 4:58 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth	32 min
May 25, 5:05 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	55 min
May 25, 5:45 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Walton	60 min
May 25, 5:55 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	35 min
May 25, 6:28 PM EDT	Severe Thunderstorm Warning	FFC	Cobb	32 min
May 25, 6:39 PM EDT	Severe Thunderstorm Warning	FFC	Walton	36 min
May 25, 7:00 PM EDT	Severe Thunderstorm Warning	FFC	Fulton	35 min
May 25, 7:19 PM EDT	Severe Thunderstorm Warning	FFC	Rockdale	26 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2006 Every severe thunderstorm warning in 2006

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.