Alert archive / Pennsylvania / Areal Flood Advisories in 2011

Areal Flood Advisory 119, NWS Philadelphia/Mount Holly

August 18, 2011Delaware County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 18, 2011, 9:29 AM EDT for Delaware County, Pennsylvania. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Aug 18, 2011, 9:29 AM EDT (13:29 UTC)
Expired: Aug 18, 2011, 11:30 AM EDT
In force: 2 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Delaware County, PA

The radar

The Philadelphia radar (KDIX), 84 km from the middle of the area, began a volume at 13:29 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 1.5 hours before the alert went out and 78 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: 780 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1022 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood advisory went out at Aug 18, 9:22 AM EDT, 7 minutes earlier.

Area forecast discussion, Aug 18, 9:22 AM EDT, 7 minutes before

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Hazardous weather outlook, Aug 18, 3:49 AM EDT, 5 hours 40 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
349 AM EDT THU AUG 18 2011

DEZ001-MDZ008-NJZ001-007>010-012-015>019-PAZ054-055-060>062-067>071-
190800-
NEW CASTLE-CECIL-SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
MERCER-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-CARBON-MONROE-
BERKS-LEHIGH-NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-
PHILADELPHIA-
349 AM EDT THU AUG 18 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN DELAWARE...NORTHEAST
MARYLAND...CENTRAL NEW JERSEY...NORTHERN NEW JERSEY...NORTHWEST NEW
JERSEY...SOUTHERN NEW JERSEY...EAST CENTRAL
PENNSYLVANIA...NORTHEAST PENNSYLVANIA AND SOUTHEAST PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
WHICH COULD RESULT IN LOCALIZED POOR DRAINAGE FLOODING. SMALL HAIL
IS POSSIBLE WITH ANY THUNDERSTORM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

MORE SHOWERS AND THUNDERSTORMS ARE FORECAST FOR FRIDAY. THESE
STORMS COULD BE SLOW-MOVING IN PORTIONS OF OUR AREA AND CAPABLE
OF PRODUCING LOCALLY HEAVY RAIN AMOUNTS, WHICH MAY LEAD TO AT
LEAST LOCALIZED FLOODING...AND PERHAPS A RENEWAL OF MORE
WIDESPREAD FLOODING. THE BEST CHANCE FOR SHOWERS AND THUNDERSTORMS
IS EXPECTED TO BE IN THE AFTERNOON AND EVENING HOURS.

.SPOTTER INFORMATION STATEMENT...

PLEASE REPORT ANY FLOODING OR HAIL ACCORDING TO STANDARD OPERATING
PROCEDURES.

DEZ002>004-MDZ012-015-019-020-NJZ013-014-020>027-190800-
KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT-
CAROLINE-WESTERN MONMOUTH-EASTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
349 AM EDT THU AUG 18 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...SOUTHERN
DELAWARE...NORTHEAST MARYLAND...CENTRAL NEW JERSEY AND SOUTHERN NEW
JERSEY.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SHOWERS AND THUNDERSTORMS ARE FORECAST FOR FRIDAY. THESE STORMS
COULD BE SLOW-MOVING IN PORTIONS OF OUR AREA AND CAPABLE OF
PRODUCING LOCALLY HEAVY RAIN AMOUNTS, WHICH MAY LEAD TO AT LEAST
LOCALIZED FLOODING...AND PERHAPS A RENEWAL OF MORE WIDESPREAD
FLOODING. THE BEST CHANCE FOR SHOWERS AND THUNDERSTORMS IS
EXPECTED TO BE IN THE AFTERNOON AND EVENING HOURS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ430-431-450>455-190800-
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM-
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM-
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20 NM-
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM-
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM-
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM-
349 AM EDT THU AUG 18 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
DELAWARE BAY WATERS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 18, 4:48 AM EDT, 4 hours 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
448 AM EDT THU AUG 18 2011

DEZ001-MDZ008-PAZ060-067>070-180945-
BERKS PA-BUCKS PA-CECIL MD-CHESTER PA-DELAWARE PA-MONTGOMERY PA-
NEW CASTLE DE-
448 AM EDT THU AUG 18 2011

...SHOWERS WITH ISOLATED EMBEDDED THUNDERSTORMS AND HEAVY RAINFALL
WILL AFFECT CECIL...DELAWARE...CHESTER...MONTGOMERY...BERKS...BUCKS
AND NEW CASTLE COUNTIES...

AT 440 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS WITH HEAVY RAINFALL AND ISOLATED EMBEDDED THUNDERSTORMS
ALONG A LINE EXTENDING FROM 5 MILES EAST OF READING TO 17 MILES
NORTHWEST OF WEST CHESTER TO 22 MILES WEST OF ELKTON...MOVING EAST
AT 20 MPH. THE SHOWERS WILL BE NEAR MOUNT VERNON...HOMEVILLE...GLEN
ROY AROUND 455 AM...GLENMOORE...COCHRANVILLE... WEST NOTTINGHAM...
AMITY GARDENS AROUND 500 AM...FARMINGTON...STOWE AND OXFORD AROUND
505 AM.

BRIEF VERY HEAVY RAIN WILL FALL FROM THESE SHOWERS...AND WILL CAUSE
WATER TO POND ON ROADS AND IT MAY QUICKLY FILL ROADSIDE DITCHES AND
SMALL STREAMS.

LAT...LON 3973 7615 3975 7610 3987 7601 3992 7601
      4003 7595 4011 7595 4014 7590 4019 7597
      4039 7592 4044 7552 4042 7549 4044 7547
      4047 7522 4013 7531 3969 7567 3963 7616
      3972 7624

FORECASTER:DRAG

Special weather statement, Aug 18, 4:53 AM EDT, 4 hours 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
453 AM EDT THU AUG 18 2011

NJZ001-007>010-180945-
HUNTERDON NJ-MORRIS NJ-SOMERSET NJ-SUSSEX NJ-WARREN NJ-
453 AM EDT THU AUG 18 2011

...SHOWERS WITH HEAVY RAINFALL AND AN ISOLATED EMBEDDED THUNDERSTORM
WILL AFFECT SUSSEX...WARREN...MORRIS...HUNTERDON AND SOMERSET
COUNTIES...

AT 446 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SCATTERED SHOWERS WITH HEAVY RAINFALL AND AN ISOLATED EMBEDDED
THUNDERSTORM EXTENDING ALONG A LINE FROM 10 MILES NORTHWEST OF
NEWTON TO 17 MILES WEST OF MORRISTOWN TO 12 MILES WEST OF
SOMERVILLE...MOVING NORTHEAST AT 15 MPH. THE SHOWERS WILL BE NEAR
BUDD LAKE AROUND 500 AM...NEWTON...ANDOVER AROUND 505
AM...HAINESVILLE...STANHOPE...STANHOPE...NETCONG AROUND 510
AM...SUCCASUNNA AROUND 515 AM...BRIDGEWATER AND RARITAN AROUND 520
AM.

BRIEF VERY HEAVY RAIN WILL FALL FROM THESE SHOWERS...AND WILL CAUSE
WATER TO POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND
SMALL STREAMS.

LAT...LON 4120 7437 4109 7449 4104 7449 4105 7444
      4101 7439 4099 7429 4090 7430 4089 7433
      4086 7431 4078 7437 4073 7437 4067 7445
      4065 7445 4066 7440 4064 7440 4044 7488
      4077 7484 4114 7493 4125 7486 4133 7465

FORECASTER:  DRAG

Special weather statement, Aug 18, 5:45 AM EDT, 3 hours 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
545 AM EDT THU AUG 18 2011

DEZ001-MDZ008-012-NJZ016>018-PAZ067-068-070-071-181045-
CAMDEN NJ-CECIL MD-CHESTER PA-DELAWARE PA-GLOUCESTER NJ-KENT MD-
MONTGOMERY PA-NEW CASTLE DE-PHILADELPHIA PA-SALEM NJ-
545 AM EDT THU AUG 18 2011

...HEAVY SHOWERS AND SCATTERED STRONG THUNDERSTORMS WILL AFFECT
CAMDEN...CECIL...CHESTER...DELAWARE...GLOUCESTER...KENT...MONTGOMERY.
..NEW CASTLE...PHILADELPHIA AND SALEM COUNTIES...

AT 539 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF HEAVY SHOWERS AND SCATTERED STRONG THUNDERSTORMS FROM 20
MILES NORTH OF WEST CHESTER TO 12 MILES NORTHEAST OF WEST CHESTER TO
8 MILES SOUTH OF WEST CHESTER TO 21 MILES SOUTHWEST OF
ELKTON...MOVING EAST AT 15 MPH. THE THUNDERSTORMS WILL BE NEAR
CHEYNEY...DEVON-BERWYN...COLLEGEVILLE...AUDUBON AROUND 550
AM...GRADYVILLE...ELAM...CONCORDVILLE...EVANSBURG AROUND 555
AM...SKIPPACK AND HARLEYSVILLE AROUND 600 AM.  THEY SHOULD REACH THE
CITY OF PHILADELPHIA BETWEEN 6 AM AND 630 AM

VERY HEAVY RAINFALL WILL OCCUR OVER AREAS THAT RECEIVED HEAVY RAINS
EARLIER. BE ALERT FOR THE POSSIBILITY OF LOCALIZED FLOODING.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS.

LAT...LON 3944 7600 3953 7599 3957 7611 3988 7573
      4012 7555 4036 7559 4014 7503 4002 7501
      3999 7507 3994 7501 3972 7518 3945 7554
      3946 7555 3958 7556 3946 7558 3943 7553
      3930 7569 3926 7588 3934 7615

FORECASTER:  DRAG

Special weather statement, Aug 18, 6:04 AM EDT, 3 hours 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
604 AM EDT THU AUG 18 2011

PAZ060-067-068-181045-
BERKS PA-CHESTER PA-MONTGOMERY PA-
604 AM EDT THU AUG 18 2011

...SHOWERS WITH HEAVY RAINFALL AND ISOLATED THUNDERSTORMS WILL
AFFECT CHESTER...MONTGOMERY AND BERKS COUNTIES...

AT 601 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SECOND TRAILING LINE OF SHOWERS WITH HEAVY RAINFALL AND AN EMBEDDED
THUNDERSTORM EXTENDING FROM 14 MILES NORTHWEST OF READING TO 9 MILES
SOUTH OF READING TO 9 MILES WEST OF WEST CHESTER...MOVING EAST AT 15
MPH. THE SHOWERS WILL BE NEAR WYOMISSING...WEST READING...
THORNDALE...KENHORST AROUND 610 AM...GLENMOORE...WEST READING...
READING AROUND 615 AM...MOUNT PENN...MARSHALLTON AND DOWNINGTOWN
AROUND 620 AM.

VERY HEAVY RAINFALL WILL OCCUR OVER AREAS THAT RECEIVED HEAVY RAINS
EARLIER. BE ALERT FOR THE POSSIBILITY OF LOCALIZED FLOODING.

LAT...LON 4049 7623 4054 7579 4021 7550 4005 7541
      3990 7581 4011 7595 4014 7590 4023 7603

FORECASTER:DRAG

Special weather statement, Aug 18, 7:29 AM EDT, 2 hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
729 AM EDT THU AUG 18 2011

NJZ016>019-027-PAZ068>071-181230-
BUCKS PA-CAMDEN NJ-DELAWARE PA-GLOUCESTER NJ-MONTGOMERY PA-
NORTHWESTERN BURLINGTON NJ-PHILADELPHIA PA-SALEM NJ-
SOUTHEASTERN BURLINGTON NJ-
729 AM EDT THU AUG 18 2011

...STRONG THUNDERSTORMS WILL AFFECT BUCKS...BURLINGTON...CAMDEN...
DELAWARE...GLOUCESTER...MONTGOMERY...PHILADELPHIA AND SALEM
COUNTIES...

AT 727 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 20 MILES SOUTH OF
ALLENTOWN TO 12 MILES WEST OF PHILADELPHIA TO 12 MILES EAST OF
WILMINGTON...MOVING EAST AT 20 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS. SO FAR, WIND
GUSTS TO 30 MPH HAVE BEEN OCCURRING WITH THESE STORMS ESPECIALLY
ALONG THE LEADING EDGE.

VERY HEAVY RAIN WILL FALL FROM THESE STORMS, AND WILL CAUSE WATER TO
POND ON ROADS AND GREATLY REDUCE THE VISIBILITIES.

CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. DO NOT
SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS, MOVE INDOORS WHEN
A THUNDERSTORM APPROACHES.

LAT...LON 3970 7476 3963 7539 4001 7544 4002 7542
      4004 7543 4007 7537 4007 7541 4010 7543
      4009 7545 4013 7549 4035 7561 4039 7500
      4005 7470

FORECASTER: GORSE

Special weather statement, Aug 18, 8:16 AM EDT, 1 hour 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
816 AM EDT THU AUG 18 2011

NJZ017>019-027-PAZ068-069-071-181315-
BUCKS PA-CAMDEN NJ-GLOUCESTER NJ-MONTGOMERY PA-
NORTHWESTERN BURLINGTON NJ-PHILADELPHIA PA-SOUTHEASTERN BURLINGTON
NJ-
816 AM EDT THU AUG 18 2011

...STRONG THUNDERSTORMS WILL AFFECT BUCKS...BURLINGTON...CAMDEN...
GLOUCESTER...MONTGOMERY AND PHILADELPHIA COUNTIES...

AT 812 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES NORTHWEST OF
PHILADELPHIA TO 4 MILES WEST OF CAMDEN TO 6 MILES SOUTH OF CAMDEN TO
12 MILES SOUTH OF CAMDEN...MOVING NORTHEAST AT 20 MPH. THE STRONGEST
STORMS WERE LOCATED IN PHILADELPHIA COUNTY AND ALSO IN NORTHEASTERN
GLOUCESTER COUNTY.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THE STRONGEST
STORMS.

VERY HEAVY RAIN WILL FALL FROM THESE STORMS, AND WILL CAUSE WATER TO
POND ON ROADS AND GREATLY REDUCE THE VISIBILITIES.

CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. DO NOT
SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS, MOVE INDOORS WHEN
A THUNDERSTORM APPROACHES.

LAT...LON 3988 7457 3970 7521 3981 7521 3989 7527
      3993 7525 3996 7526 4011 7524 4026 7486
      4012 7470 4004 7465

FORECASTER: GORSE

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 18, 4:53 AM EDT	Special Weather Statement	PHI	Morris, Somerset, Sussex	52 min
Aug 18, 6:35 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Morris and 2 more	3 hr
Aug 18, 7:29 AM EDT	Special Weather Statement	PHI	Camden, Gloucester	61 min
Aug 18, 8:16 AM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester	59 min
Aug 18, 8:57 AM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Monmouth and 1 more	3 hr
Aug 18, 3:12 PM EDT	Flash Flood Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	29 hr
Aug 18, 3:32 PM EDT	Special Weather Statement	PHI	Burlington	58 min
Aug 18, 3:50 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden	51 min
Aug 18, 4:17 PM EDT	Special Weather Statement	PHI	Monmouth	58 min
Aug 18, 4:55 PM EDT	Special Weather Statement	PHI	Burlington	65 min
Aug 18, 5:20 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	33 min
Aug 18, 6:12 PM EDT	Special Weather Statement	PHI	Middlesex	63 min
Aug 18, 6:33 PM EDT	Special Weather Statement	PHI	Mercer	57 min
Aug 18, 7:34 PM EDT	Special Weather Statement	PHI	Monmouth	56 min
Aug 18, 7:37 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	53 min
Aug 18, 7:43 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	62 min
Aug 18, 7:47 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	3 hr
Aug 18, 7:59 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	61 min
Aug 18, 2:57 AM EDT	Special Weather Statement	PHI	Berks	63 min
Aug 18, 3:53 AM EDT	Special Weather Statement	PHI	Berks	52 min
Aug 18, 4:48 AM EDT	Special Weather Statement	PHI	Chester, Montgomery	57 min
Aug 18, 5:45 AM EDT	Special Weather Statement	PHI	Delaware, Montgomery, Philadelphia	60 min
Aug 18, 6:04 AM EDT	Special Weather Statement	PHI	Berks, Chester	41 min
Aug 18, 5:30 PM EDT	Special Weather Statement	PHI	Monroe	60 min
Aug 18, 5:48 PM EDT	Severe Thunderstorm Warning	PHI	Chester	57 min
Aug 18, 6:18 PM EDT	Special Weather Statement	PHI	Chester	57 min
Aug 18, 6:39 PM EDT	Severe Thunderstorm Warning	PHI	Chester	66 min
Aug 18, 6:59 PM EDT	Flash Flood Warning	PHI	Chester	2 hr
Aug 18, 7:14 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	50 min
Aug 18, 7:28 PM EDT	Special Weather Statement	PHI	Chester	62 min
Aug 18, 7:31 PM EDT	Special Weather Statement	PHI	Monroe	59 min
Aug 18, 7:58 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	31 min
Aug 18, 6:04 PM EDT	Areal Flood Advisory	PHI	Cecil	116 min

Nearby

Areal Flood Advisories in Pennsylvania, 2011 Every areal flood advisory in 2011

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.