Alert archive / Virginia / Flash Flood Warnings in 2006
Flash Flood Warning 11, NWS Baltimore/Washington
NWS Baltimore/Washington issued this flash flood warning at Jun 19, 2006, 6:42 PM EDT for Fairfax County, Virginia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 19, 2006, 6:42 PM EDT (22:42 UTC)
- Expired
- Jun 19, 2006, 9:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Baltimore/Washington
- Area
- Counties, with a storm outline in the text
County Fairfax County, VA
The radar
The Sterling radar (KLWX), 24 km from the middle of the area, began a volume at 22:42 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, 10.7 hours before the alert went out and 124 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1462 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Jun 19, 2:51 PM EDT, 3 hours 51 minutes earlier.
Area forecast discussion, Jun 19, 2:51 PM EDT, 3 hours 51 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 251 PM EDT MON JUN 19 2006 .SHORT TERM /TONIGHT THROUGH TUESDAY/... LEE TROF OVR BLURDG ATTM. CDFNT ON WRN FRINGE OF CWFA. MOST VIGOROUS CNVCTN OCCRG IN THE FORMER ATTM. INSTBLTY NOT ALL THAT GREAT...BUT ENVIRONMENT IN BALT-DC CRRDR WAS RECEIVING FULL ALBEIT HAZY SUN ERLR...SO STILL OPPORTUNITY FOR INTENSIFICATION. TIMING OF CDFNT WUD PUT IT THRU METRO AREAS 23-00Z...AND TO ERN SHR AOB 02Z. ONGOING TSRA IAD-FDK SHUD BE E OF CWFA BY START OF VALID PD. THUS...CHC POPS DUE TO CVRG FOR THE EVE. SINCE WNDS TURN WNW POST FROPA...WL CURTAIL MOST POPS BHD CDFNT. H5 TROF TO SWING THRU TMRW...BUT W/ WNW FLOW CONTG AT SFC. SHUD SEE ADDTL CLDCVR...BUT DONT THINK RISK OF RAFL ENUF TO WARRANT A POP MNTN. && .LONG TERM /TUESDAY NIGHT THROUGH MONDAY/... HIGH PRES BLDS INTO THE RGN DURG THE ERLY PART OF THE XTND BRINGING TEMPS TUE NGT 65-70 E OF THE MTNS...60-65 W...THEN IN 80S ON WED. SUB TROP HIGH OVR GULF STATES BCMG MORE INFUENTIAL ON WED NGT CAUSING RISING DWPTS AND OVRNGT LOWS...BUT STILL NOT INTO OPPRESSIVE LVLS. SUMMER BEGINS ON WED...AND NO DOUBT TEMPS IN RMDR OF XTND WL BE SUMMERY...ALTHO NOT SUCH THAT REQUIRES HT ADVRYS. SHORT WVS RIPPLE THRU THE RLTVLY ZNL FLOW ALONG 40N...WHICH WL KEEP DAYTIME TEMPS NEAR CLIMO NORMS. WEVE GOT A LOT OF LOW CHC POPS IN THE 2ND HALF OF THE XTND...BUT I THINK IT WL BE DRY THE MAJORITY OF THE TIME. MAN PROGS/GFS DEPICT A NDRY JUST N OF THE AREA FRI-MON...IT THIS IS INDEED WHAT HAPPENS THIS WOULD PROVIDE A FOCUS FOR CNVCTN. && .AVIATION... LCL IFR VSBYS/MVFR CIGS IN TSRA TAFTN DC-BALT CRRDR...OTRW VFR CONDS XPCTD FOR REST OF TDA. 3-5SM BR PSBL LT TNGT/PREDAWN DUE TO MOIST GRND FM RECENT RAINS COMBINED W/ LGT FLOW OVNGT AND DEWPTS STILL IN THE 60S. && .MARINE... WNDS APPR BLO SCA LVL THRU THE AFTN. HIER WND RISK TAFTN/TNGT WL BE CONFINED TO TSRA...AND THUS WL GO THE SMW RTE W/ LCLLY HIER WNDS/WVS/LTNG STRIKES. NW FLOW TMRW...BUT WARM WATER TEMPS WL INHIBIT MIXING A BIT. FCST WNDS AOB 15 KT. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...NONE. VA...NONE. WV...NONE. MARINE...NONE. && SHORT TERM/AVIATION/MARINE...HTS LONG TERM...WOODY
Hazardous weather outlook, Jun 19, 12:28 PM EDT, 6 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1228 PM EDT MON JUN 19 2006 ANZ530>537-DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021- 025>031-036>042-050>057-WVZ048>055-201000- CHESAPEAKE BAY NORTH OF POOLES ISLAND MD- CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD- CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD- CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD- CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA- TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD- TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD- TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA- DISTRICT OF COLUMBIA-ALLEGANY-WASHINGTON-FREDERICK MD-CARROLL- NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE- PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-HIGHLAND- AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE- NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN- ORANGE-CULPEPER-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE-GRANT-MINERAL-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON- PENDLETON-HARDY- 1228 PM EDT MON JUN 19 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MARYLAND WEST OF THE EASTERN SHORE INCLUDING THE CHESAPEAKE BAY AND EAST OF GARRETT COUNTY...EASTERN WEST VIRGINIA...NORTHERN AND CENTRAL VIRGINIA... WASHINGTON DC AND THE TIDAL POTOMAC RIVER. .DAY ONE...THIS AFTERNOON AND TONIGHT A BROKEN LINE OF SHOWERS AND THUNDERSTORMS WILL MOVE EAST INTO THE MID ATLANTIC REGION THE AFTERNOON AND EVENING. A FEW OF THE STORMS COULD BECOME SEVERE AS AN UPPER LEVEL DISTURBANCE WILL COMBINE WITH THE MODERATELY UNSTABLE AIRMASS IN PLACE. DAMAGING WIND GUSTS WILL BE POSSIBLE WITH ANY SEVERE STORMS THAT DEVELOP. THE AREA OF GREATEST CONCERN WILL BE NORTH OF HARRISONBURG...DISTRICT OF COLUMBIA...AND ANNAPOLIS. A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE MARYLAND PORTION OF THE CHESAPEAKE BAY TODAY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATER THIS AFTERNOON. HTS
In the hours before
Special weather statement, Jun 19, 12:44 PM EDT, 5 hours 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1244 PM EDT MON JUN 19 2006 DCZ001-MDZ002>007-009>011-013-014-VAZ021-026>031-040>042-051>054- WVZ048>055-192245- DISTRICT OF COLUMBIA-ALLEGANY-WASHINGTON-FREDERICK MD-CARROLL- NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE- PRINCE GEORGES-ANNE ARUNDEL-HIGHLAND-ROCKINGHAM-SHENANDOAH- FREDERICK VA-PAGE-WARREN-CLARKE-RAPPAHANNOCK-FAUQUIER-LOUDOUN- CULPEPER-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-GRANT-MINERAL-HAMPSHIRE-MORGAN- BERKELEY-JEFFERSON-PENDLETON-HARDY- INCLUDING THE CITIES OF...WASHINGTON...CUMBERLAND...HAGERSTOWN... FREDERICK...WESTMINSTER...GAITHERSBURG...COLUMBIA...BALTIMORE... ANNAPOLIS...HARRISONBURG...WINCHESTER...FRONT ROYAL...LEESBURG... CULPEPER...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA... FALLS CHURCH...BAYARD...PETERSBURG...KEYSER...MARTINSBURG... CHARLES TOWN 1244 PM EDT MON JUN 19 2006 ...A SLIGHT RISK OF THUNDERSTORMS OVER PORTIONS OF THE MID ATLANTIC TODAY... A BROKEN LINE OF SHOWERS AND THUNDERSTORMS WILL MOVE EAST INTO THE MID ATLANTIC THIS AFTERNOON AND AND EARLY EVENING. A FEW OF THE STORMS COULD BECOME SEVERE AS AN UPPER LEVEL DISTURBANCE COMBINES WITH A MODERATELY UNSTABLE AIRMASS. THUNDERSTORMS WILL DEVELOP WEST OF THE BLUE RIDGE EARLY THIS AFTERNOON. THESE STORMS WILL CROSS INTO THE BALTIMORE WASHINGTON CORRIDOR DURING THE MID AFTERNOON HOURS...AND EXIT EAST OF THE BAY BY EARLY EVENING. DAMAGING WIND GUSTS WILL BE POSSIBLE WITH ANY SEVERE THUNDERSTORM THAT DEVELOPS. THE AREA UNDER GREATEST CONCERN WILL BE NORTH OF HARRISONBURG...WASHINGTON DC...AND ANNAPOLIS. RESIDENTS SHOULD MONITOR WEATHER CONDITIONS AND SEEK SHELTER INDOORS IF THREATENING WEATHER APPROACHES. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATER UPDATES ON THIS SITUATION. HTS
Local storm report, Jun 19, 5:29 PM EDT, 1 hour 13 minutes before
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 3:09 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jun 19, 3:16 PM EDT | Special Marine Warning | LWX | 119 min | |
| Jun 19, 4:35 PM EDT | Special Marine Warning | LWX | 115 min | |
| Jun 19, 5:36 PM EDT | Special Marine Warning | LWX | 114 min | |
| Jun 19, 5:48 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, City of Fairfax | 57 min |
| Jun 19, 6:06 PM EDT | Severe Thunderstorm Warning | LWX | Arlington, City of Alexandria, City of Falls Church | 41 min |
| Jun 19, 6:37 PM EDT | Special Marine Warning | LWX | 113 min | |
| Jun 19, 5:18 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 57 min |
| Jun 19, 6:19 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 56 min |
Nearby
Flash Flood Warnings in Virginia, 2006Every flash flood 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.