Alert archive / West Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Charleston, WV

April 30, 2012Boone County, Kanawha County, West Virginia

NWS Charleston, WV issued this special weather statement at Apr 30, 2012, 11:45 PM EDT for Boone County, Kanawha County, West Virginia. It was in force for 45 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: Apr 30, 2012, 11:45 PM EDT (03:45 UTC)
Expired: May 1, 2012, 12:30 AM EDT
In force: 45 min
Issued by: NWS Charleston, WV

Counties Boone County, WV, Kanawha County, WV

The radar

The Charleston,WV radar (KRLX), 9 km from the middle of the area, began a volume at 03:48 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.8 hours before the alert went out and 224 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: 98 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1642 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, WV wrote its last area forecast discussion before this special weather statement went out at Apr 30, 10:22 PM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Apr 30, 10:22 PM EDT, 1 hour 23 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON WV
1022 PM EDT MON APR 30 2012

.SYNOPSIS...
MUGGY AIR IN CONTROL.  ONE DISTURBANCE PASSES TONIGHT...ANOTHER
TUESDAY EVENING.  ROUNDS OF SHOWERS AND THUNDERSTORMS.
EVEN WARMER AIR TAKES FIRMER CONTROL WEDNESDAY INTO THURSDAY.

&&

.NEAR TERM /THROUGH TUESDAY/...
AT 02Z...50 KNOT 700 MB JET MAX...AND 40 KNOTS AT 850 MB...DRIVING
CONVECTION INTO CWA.  AFTER COORDINATION WITH SPC...DID LOCAL AREAL
EXTENSION OF WATCH 211 MAINLY FOR POTENTIAL OF A STRONG LOCAL WIND
GUST.

ALSO...STILL CONCERNED ABOUT POSSIBILITY OF SMALL STREAM FLOODING.
THE PRECIPITABLE WATER PEAKING OVERNIGHT AT 1.5 INCHES AND THERE
ARE TRAILING 500 MB VORT MAXES INTO SRN CNTRL KY AT 02...SO COULD
SEE SOME REPETITIVE CELLS. SO COULD NOT RULE OUT A LATE NIGHT FFA
OR LOCALIZED FFW.

STILL HAVING DIFFICULTY FIGURING OUT CLOUD COVERAGE AND POPS FOR
TUESDAY BUT NORTHERN COUNTIES SHOULD DRY OUT FOR THE MORNING.

HOWEVER...NEXT ROUND MAINLY TUESDAY NIGHT...WITH PRECIPITABLE WATER
AGAIN AROUND 1.5 INCHES. SO...NOT OUT OF THE WOODS.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/...
AT THE OUTSET OF THE PERIOD TUE EVE SFC COLD FRONT WILL BE STALLED
ALONG OUR NORTHERN FORECAST AREA BOUNDARY IN GENERAL ZONAL FLOW WITH
THE BULK OF THE PRECIP EARLIER IN THE DAY PUSHING TO THE EAST.
HOWEVER SHORT TERM OPERATIONAL MODELS IN DECENT AGREEMENT WITH
REGARD TO ANOTHER S/W TROUGH MOVING THROUGH MEAN FLOW...BRINGING
ANOTHER ROUND OF INCREASED CHANCES FOR PRECIP ACROSS THE AREA
BEGINNING OVERNIGHT TUE NIGHT/WED AM. CONTINUED RIPPLES IN THE FLOW
WITH ABUNDANT LLVL MOISTURE IN PLACE WILL RESULT IN CONTINUED
CHANCES FOR SHOWERS/THUNDERSTORMS THROUGH MUCH OF WED BEFORE
BEGINNING TO TAPER OFF WED EVENING. WILL CONTINUE FOCUS OF POPS TUE
NIGHT/WED AM ACROSS NORTHERN THIRD OF FORECAST AREA WITH BEST COMBO
OF MOISTURE AND LIFT MECHS IN PLACE NEAR QUASI-STATIONARY FRONT.
WEDNESDAY BECOMES A BIT MORE PROBLEMATIC IN TERMS OF PRECIP AND ITS
TIMING. BELIEVE MANY LOCATIONS WILL SEE SOME MEASURABLE PRECIP AT
SOME POINT WEDNESDAY BETWEEN 12Z-00Z THURSDAY BUT AS BEST DYNAMICS
AND DEEP MOISTURE BEGIN TO EXIT THE AREA WED MORNING WITH UPPER
LEVEL RIDGING CONTINUING TO BUILD OVER THE AREA...ENOUGH LLVL
MOISTURE WILL REMAIN IN PLACE FOR INCREASED CONVECTIVE POTENTIAL AS
THE DAY PROGRESSES. TOUGH TO PINPOINT A SFC CONVECTIVE TRIGGER AS
FRONT PREVIOUSLY STALL ACROSS NORTH LIFTS NORTHWARD AWAY FROM AREA.
BEST MOISTURE IN THE COLUMN WILL BE AROUND THE H85 RANGE. WITH THIS
IN MIND...WILL LEAN POPS IN THE GENERAL DIRECTION OF BEST MOISTURE
CONVERGENCE IN AND AROUND THIS LAYER WITH BEST INSTABILITY...WHICH
WILL BE LOCATED ACROSS NE PART OF FORECAST AREA BY 18Z WED. EVEN
HERE WILL CODE IN DECREASING CHANCES OF PRECIP AS THE AFTERNOON
PROGRESSES AS DEEPEST MOISTURE BEGINS PULLING OUT OF AREA. AS
DAYTIME HEATING WANES...PRECIP CHANCES WILL COME TO AN END ACROSS
THE AREA AND REMAIN AS SUCH INTO THURSDAY MORNING. WILL RETAIN
SLIGHT CHANCE POPS LATE MORNING AND AFTERNOON THURSDAY AS JUST
ENOUGH DEPTH OF MOISTURE EXISTS AROUND THE H85 VICINITY WITH SOME
WEAK LIFT NOTED ON 300K-305K SURFACES THAT A FEW STORMS CAN/T
COMPLETELY BE RULED OUT.

REGARDING MAX TEMPS...LIKED INHERITED HIGHS WEDNESDAY AND OTHER THAN
A FEW MINOR TWEAKS HAVE CONTINUED PREVIOUS FCST. DID GO AHEAD AND
NUDGE HIGHS UP 2-3 DEGREES GENERALLY INTO THE UPPER 80S LOWLANDS FOR
THURSDAY WITH MORE SUNSHINE AND H7 THERMAL RIDGE OVERHEAD.

&&

.LONG TERM /FRIDAY THROUGH MONDAY/...
LONG TERM STARTS OFF WITH DIRTY RIDGE OVER THE REGION...STARTING TO
BE SUPPRESSED IN RESPONSE TO LARGE CLOSED LOW DROPPING SOUTH INTO
EASTERN CANADA. THE 12Z GFS IS A BIT STRONGER WITH THE RIDGE...AND
LINGERS IT A BIT LONGER THAN PREVIOUS RUNS. DID NOT BUY FULLY INTO
THE NEW GFS...BUT DID KEEP FRIDAY A BIT WARMER...THEN SLOWLY COOLING
AS THE RIDGE LEVELS OUT THROUGH THE WEEKEND...WITH MUCH COOLER AIR
MOVING IN BEHIND SURFACE COLD FRONT TOWARDS THE END OF THE PERIOD.

HARD TO SAY EXACTLY WHEN BEST OPPORTUNITIES FOR PRECIP WILL BE WITH
THE DIRTY RIDGE THIS FAR OUT. GFS...AND TO LESSER EXTEND
ECMWF...SHOW A LITTLE SHORTWAVE/VORT LOBE SLIDING DOWN THE RIDGE FOR
FRIDAY NIGHT INTO SATURDAY...AND THEN A CLOSED UPPER LOW DROPPING
INTO NORTHERN NEW ENGLAND WITH A SURFACE FRONT CROSSING CWA EARLY
NEXT WEEK. WENT WITH CHANCE POPS ROUGHLY TIMED AROUND THESE...WITH
SLIGHT CHANCE THE REST OF THE TIME DUE TO QUITE A BIT OF OPERATIONAL
AND ENSEMBLE SPREAD.

&&

.AVIATION /03Z TUESDAY THROUGH SATURDAY/...
ONE DISTURBANCE IN THE MID LEVEL FLOW PASSES 03Z TO 09Z WITH SHOWERS
AND THUNDERSTORMS...THOUGH THINKING INTENSITY OF THE THUNDERSTORMS
SHOULD BE WEAKENING.

WILL LOWER POPS FASTER AFTER 06Z IN SOUTHEAST OHIO AS THE CONVECTION
MOVES THROUGH WV AND SOUTHWEST VIRGINIA.  HAVE LIGHTER SHOWERS
LINGERING OVERNIGHT INTO TUESDAY MORNING.

HAVING PROBLEMS FIGURING THE CEILING HEIGHTS AND VSBY LATE TONIGHT
INTO TUESDAY MORNING...IN THE AFTERMATH OF THE MAIN CONVECTION
TONIGHT.  FIGURING THE SHOWERS WILL SATURATE THE LOWER LEVELS...SO
HAVE WIDESPREAD CEILINGS 1 TO 3 THSD FT BKN LINGERING AND VSBY 3 TO
5 MILES ON EITHER SIDE OF DAWN...BEFORE THE CEILINGS TRY TO LIFT AND
VSBY IMPROVES.  DO NOT HAVE THICK FOG...FIGURING CEILINGS
LINGERING.

MORE SHOWERS AND THUNDERSTORMS COULD REDEVELOP MAINLY HTS-CRW-BKW ON
S AND SW 18Z TUESDAY TO 00Z WEDNESDAY.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z WEDNESDAY...

FORECAST CONFIDENCE...LOW.

ALTERNATE SCENARIOS: THE COVERAGE AND CEILING HEIGHTS OF THE CLOUDS
ON TUESDAY DIFFICULT TO FIGURE.  CEILINGS COULD BE LOWER IN THE
MORNING.

EXPERIMENTAL TABLE OF FLIGHT CATEGORY OBJECTIVELY SHOWS CONSISTENCY
OF WFO FORECAST TO AVAILABLE MODEL INFORMATION:
H = HIGH:   TAF CONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.
M = MEDIUM: TAF HAS VARYING LEVEL OF CONSISTENCY WITH MODELS.
L = LOW:    TAF INCONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.

DATE                                                  TUE 05/01/12
UTC 1HRLY       02   03   04   05   06   07   08   09   10   11   12   13
EDT 1HRLY       22   23   00   01   02   03   04   05   06   07   08   09
CRW CONSISTENCY  H    M    M    M    L    M    M    M    M    M    M    M
HTS CONSISTENCY  M    M    M    M    L    H    M    M    M    M    M    M
BKW CONSISTENCY  H    H    M    M    M    L    L    L    M    M    M    M
EKN CONSISTENCY  H    H    H    L    M    H    M    H    M    M    M    M
PKB CONSISTENCY  H    M    M    M    M    M    M    M    M    M    M    M
CKB CONSISTENCY  H    M    M    M    M    M    M    H    M    M    M    M

AFTER 00Z WEDNESDAY...
IFR IN SHOWERS AND THUNDERSTORMS AT TIMES TUESDAY NIGHT.

&&

.RLX WATCHES/WARNINGS/ADVISORIES...
WV...NONE.
OH...NONE.
KY...NONE.
VA...NONE.

&&

SYNOPSIS...ARJ/MZ/50
NEAR TERM...KTB
SHORT TERM...KTB
LONG TERM...MZ
AVIATION...KTB

Hazardous weather outlook, Apr 30, 4:46 AM EDT, 18 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON WV
446 AM EDT MON APR 30 2012

KYZ103-105-VAZ003-004-WVZ005>008-013>018-024>030-033>040-046-047-
010900-
BOYD-LAWRENCE KY-DICKENSON-BUCHANAN-WAYNE-CABELL-MASON-JACKSON WV-
LINCOLN-PUTNAM-KANAWHA-ROANE-WIRT-CALHOUN-MINGO-LOGAN-BOONE-CLAY-
BRAXTON-GILMER-LEWIS-MCDOWELL-WYOMING-RALEIGH-FAYETTE-NICHOLAS-
WEBSTER-UPSHUR-BARBOUR-POCAHONTAS-RANDOLPH-
446 AM EDT MON APR 30 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST
KENTUCKY...SOUTHWEST VIRGINIA AND MUCH OF WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS MONDAY NIGHT MAY
RESULT IN A FLASH FLOOD THREAT ACROSS THE AREA. IF CONDITIONS
CONTINUE TO INDICATE HEAVY RAIN POTENTIAL...A FLASH FLOOD WATCH
MAY BE NECESSARY FOR THE MOST VULNERABLE COUNTIES.

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

SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS TUESDAY MAY
RESULT IN A FLASH FLOOD THREAT ACROSS THE AREA. IF CONDITIONS
CONTINUE TO INDICATE HEAVY RAIN POTENTIAL...A FLASH FLOOD WATCH
MAY BE NECESSARY FOR THE MOST VULNERABLE COUNTIES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

KYZ101-102-OHZ066-067-075-076-083>087-WVZ009>011-019-020-031-032-
010900-
GREENUP-CARTER-PERRY-MORGAN-ATHENS-WASHINGTON-JACKSON OH-VINTON-
MEIGS-GALLIA-LAWRENCE OH-WOOD-PLEASANTS-TYLER-RITCHIE-DODDRIDGE-
HARRISON-TAYLOR-
446 AM EDT MON APR 30 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST
KENTUCKY...SOUTHEAST OHIO AND NORTHERN WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS MONDAY NIGHT MAY
RESULT IN A FLASH FLOOD THREAT ACROSS THE AREA. IF CONDITIONS
CONTINUE TO INDICATE HEAVY RAIN POTENTIAL...A FLASH FLOOD WATCH
MAY BE NECESSARY FOR THE MOST VULNERABLE COUNTIES.

IN ADDITION...THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS
TODAY AND TONIGHT...WITH DAMAGING WINDS AND LARGE HAIL THE PRIMARY
THREATS.

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

SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS TUESDAY MAY RESULT IN
A FLASH FLOOD THREAT ACROSS THE AREA. IF CONDITIONS CONTINUE TO
INDICATE HEAVY RAIN POTENTIAL...A FLASH FLOOD WATCH MAY BE
NECESSARY FOR THE MOST VULNERABLE COUNTIES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

In the hours before

Special weather statement, Apr 30, 10:11 PM EDT, 1 hour 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
1011 PM EDT MON APR 30 2012

KYZ101>103-105-010245-
BOYD KY-CARTER KY-GREENUP KY-LAWRENCE KY-
1011 PM EDT MON APR 30 2012

...A STRONG THUNDERSTORM WILL AFFECT BOYD...CARTER...GREENUP AND
NORTH CENTRAL LAWRENCE COUNTIES...

AT 1009 PM EDT...A STRONG THUNDERSTORM WAS LOCATED OVER GRAYSON LAKE
STATE PARK...MOVING NORTHEAST AT 45 MPH.

WIND GUSTS TO 40 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH THIS STORM.
BRIEF HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

THIS STORM WILL BE NEAR DENTON AROUND 1020 PM...HOPEWELL AROUND 1025
PM...GARNER AROUND 1030 PM...MAVITY AROUND 1035 PM AND CANNONSBURG
AROUND 1040 PM.

THIS WILL IMPACT THE FOLLOWING INTERSTATE...I-64 BETWEEN MILE MARKERS
149 AND 188 IN KENTUCKY.

PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3834 8324 3843 8324 3856 8310 3873 8303
      3876 8290 3859 8284 3856 8275 3842 8265
      3817 8263 3809 8291 3810 8291 3811 8290
      3817 8292 3819 8302 3818 8306 3826 8316
      3819 8324 3819 8327 3821 8331 3832 8334

16

Special weather statement, Apr 30, 11:00 PM EDT, 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
1100 PM EDT MON APR 30 2012

KYZ102-103-105-OHZ087-WVZ005-006-013-024-025-010345-
BOYD KY-CABELL WV-CARTER KY-LAWRENCE OH-LAWRENCE KY-LINCOLN WV-
LOGAN WV-MINGO WV-WAYNE WV-
1100 PM EDT MON APR 30 2012

...STRONG THUNDERSTORMS WILL AFFECT BOYD...CABELL...LAWRENCE...
NORTHWESTERN LOGAN...NORTHWESTERN MINGO...SOUTHEASTERN
CARTER...SOUTHEASTERN LAWRENCE...WAYNE AND WESTERN LINCOLN
COUNTIES...

WIND GUSTS TO 40 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH THESE
STORMS. VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND COULD CAUSE
WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.

THIS WILL IMPACT THE FOLLOWING INTERSTATES...I-64 BETWEEN MILE
MARKERS 184 AND 191 IN KENTUCKY...AND BETWEEN MILE MARKERS 1 AND 23
IN WEST VIRGINIA.

PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3829 8292 3855 8232 3824 8203 3773 8207
      3774 8233 3778 8234 3781 8240 3790 8244
      3790 8248 3795 8252 3794 8257 3788 8261
      3789 8267 3794 8280 3809 8279

28

Special weather statement, Apr 30, 11:45 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
1145 PM EDT MON APR 30 2012

WVZ013>016-025-026-036-010430-
BOONE WV-FAYETTE WV-KANAWHA WV-LINCOLN WV-LOGAN WV-PUTNAM WV-ROANE WV-
1145 PM EDT MON APR 30 2012

...STRONG THUNDERSTORMS WILL AFFECT BOONE...EASTERN LINCOLN...EXTREME
WEST CENTRAL FAYETTE...KANAWHA...NORTHERN LOGAN...SOUTHERN PUTNAM AND
SOUTHWESTERN ROANE COUNTIES...

AT 1143 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 9 MILES
WEST OF NITRO TO 9 MILES SOUTHEAST OF HAMLIN TO 8 MILES NORTH OF
LOGAN...MOVING EAST AT 50 MPH.

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THESE STORMS. EXPECT INTENSE
LIGHTNING FROM THESE STORMS. DO NOT STAY IN THE OPEN NOR SEEK SHELTER
UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A
THUNDERSTORM APPROACHES.

THESE STORMS WILL BE NEAR TEAYS VALLEY...WOODVILLE...SOD...AND TURTLE
CREEK AROUND 1150 PM...POCA...JEFFREY...FOSTER...AND SHARPLES AROUND
1155 PM...ASHFORD AND VAN AROUND MIDNIGHT.

PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3822 8206 3836 8211 3838 8205 3843 8205
      3857 8164 3856 8162 3864 8141 3837 8131
      3797 8134 3797 8144 3799 8146 3799 8151
      3794 8157 3790 8208

28

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 30, 11:00 PM EDT	Special Weather Statement	RLX	Cabell, Lincoln, Wayne	45 min
May 1, 12:27 AM EDT	Special Weather Statement	RLX	Clay, Nicholas	48 min
May 1, 1:07 AM EDT	Special Weather Statement	RLX	Barbour, Braxton, Lewis, Randolph, Upshur	68 min
May 1, 5:01 PM EDT	Special Weather Statement	RLX	McDowell	29 min
May 1, 7:12 PM EDT	Special Weather Statement	RLX	Vinton	33 min
May 1, 7:31 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Jackson, Meigs, Vinton	59 min
May 1, 7:52 PM EDT	Severe Thunderstorm Warning	RLX	Gallia, Jackson, Lawrence, Meigs, Vinton	53 min
May 1, 7:56 PM EDT	Severe Thunderstorm Warning	RLX	Gallia, Lawrence	64 min
Apr 30, 10:11 PM EDT	Special Weather Statement	RLX	Boyd, Carter, Greenup	34 min

Nearby

Special Weather Statements in West Virginia, 2012 Every special weather statement in 2012

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.