Alert archive / Virginia / High Wind Warnings in 2007
High Wind Warning 2, NWS Baltimore/Washington
NWS Baltimore/Washington issued this high wind warning at Apr 15, 2007, 3:51 PM EDT for 11 counties in Maryland; 26 counties in Virginia; 7 counties in West Virginia. It took effect at Apr 15, 2007, 8:00 PM EDT. It was in force for 23 hr. 12 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 15, 2007, 3:51 PM EDT (19:51 UTC)
- In effect from
- Apr 15, 2007, 8:00 PM EDT
- Expired
- Apr 16, 2007, 7:20 PM EDT
- In force
- 23 hr
- Issued by
- NWS Baltimore/Washington
All 44 counties
Allegany County, MD, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Charles County, MD, City of Baltimore, MD, Frederick County, MD, Prince George's County, MD, Saint Mary's County, MD, Washington County, MD, Arlington County, VA, City of Alexandria, VA, City of Charlottesville, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Harrisonburg, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Fairfax County, VA, Frederick County, VA, Greene County, VA, King George County, VA, Madison County, VA, Nelson County, VA, Orange County, VA, Page County, VA, Rappahannock County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford County, VA, Warren County, VA, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Morgan County, WV
The radar
The Sterling radar (KLWX), 39 km from the middle of the area, began a volume at 19:50 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 15, 11:30 PM EDT | NON-TSTM WND DMG | 2 N White Hall, MD | PUBLIC REPORTS SEVERAL TREES BLOWN DOWN AND ROOF DAMAGE TO HOME AND OUT BUILDING ON VIA LANE 2 1/2 MILES NORTH OF WHITE HALL IN WESTERN ALBEMARLE COUNTY |
| Apr 15, 11:30 PM EDT | NON-TSTM WND DMG | 2 N White Hall, MD | |
| Apr 16, 2:00 AM EDT | TSTM WND GST 60 | 3 Se Jollett, VA | |
| Apr 16, 6:14 AM EDT | NON-TSTM WND DMG | Clifton, VA | TREE DOWN GALLOWS RD AT HEMLOCK DR |
| Apr 16, 6:33 AM EDT | NON-TSTM WND DMG | 4 Se Laurel, MD | TREE BLOCKING RT 197 AT POWDER MILL RD |
| Apr 16, 3:54 PM EDT | NON-TSTM WND DMG | Wintergreen, VA | NUMEROUS TREES DOWN IN STONEY CREEK/WINTERGREEN RESORT AREA. |
| Apr 16, 4:06 PM EDT | NON-TSTM WND GST 60 | Patuxent River, MD | G52 KT AT PATUXENT RIVER NAVAL AIR STATION. |
| Apr 16, 5:00 PM EDT | NON-TSTM WND DMG | Columbia Furnace, VA | TREES DOWN ON RT. 623. |
| Apr 16, 5:00 PM EDT | NON-TSTM WND DMG | Elkton, VA | TREES DOWN ON RT.623 |
| Apr 16, 5:00 PM EDT | NON-TSTM WND DMG | Hamburg, VA | NUMEROUS TREES DOWN BETWEEN SALEM AND HAMBURG. |
| Apr 16, 5:00 PM EDT | NON-TSTM WND DMG | Mcmullen, VA | TREES AND POWER LINES DOWN ON RTS. 637 AND 642. |
| Apr 16, 5:00 PM EDT | NON-TSTM WND DMG | Waynesboro, VA | TREES DOWN AT RT.640 NEAR RT.834. JUST OUTSIDE OF WAYNESBORO. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.9 hours before the alert went out and 44 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
- 484 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- -181 m²/s²
- 0-3 km storm-relative helicity
- 266 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS71 KLWX 151951 NPWLWX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 351 PM EDT SUN APR 15 2007 MDZ003-004-501-502-VAZ021-025>031-036>042-050-051-WVZ050>055- 501>504-160400- /O.NEW.KLWX.HW.W.0002.070416T0000Z-070417T0600Z/ WASHINGTON-FREDERICK MD-EXTREME WESTERN ALLEGANY- CENTRAL AND EASTERN ALLEGANY-HIGHLAND-AUGUSTA-ROCKINGHAM- SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-ALBEMARLE- GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN-ORANGE-CULPEPER- HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT- EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...FROSTBURG... CUMBERLAND...STAUNTON...WAYNESBORO...HARRISONBURG...WINCHESTER... FRONT ROYAL...CHARLOTTESVILLE...WASHINGTON...LEESBURG... CULPEPER...MARTINSBURG...CHARLES TOWN...BAYARD...PETERSBURG... EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY 351 PM EDT SUN APR 15 2007 ...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 2 AM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 2 AM EDT TUESDAY. AS LOW PRESSURE RAPIDLY STRENGTHENS OFF THE MID ATLANTIC COAST...STRONG NORTHWEST WINDS WILL DEVELOP ACROSS THE REGION. WINDS WILL INCREASE LATE THIS EVENING AND THROUGH THE OVERNIGHT HOURS. BY MONDAY MORNING SUSTAINED WINDS OF 25 TO 35 MPH WITH WIND GUSTS TO 60 MPH ARE EXPECTED. LOCALLY HIGHER WIND GUSTS ARE POSSIBLE OVER HIGHER TERRAIN. THE STRONG WINDS WILL CONTINUE INTO MONDAY EVENING BEFORE DIMINISHING. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. $$ DCZ001-MDZ005>007-009>011-013-014-016>018-VAZ052>057-160400- /O.NEW.KLWX.WI.Y.0005.070416T0000Z-070417T0600Z/ DISTRICT OF COLUMBIA-CARROLL-NORTHERN BALTIMORE-HARFORD- MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL- CHARLES-ST. MARYS-CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK- FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- INCLUDING THE CITIES OF...WASHINGTON...WESTMINSTER... GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS...WALDORF... ST MARYS CITY...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA... FALLS CHURCH...FREDERICKSBURG 351 PM EDT SUN APR 15 2007 ...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 2 AM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 2 AM EDT TUESDAY. AS LOW PRESSURE RAPIDLY STRENGTHENS OFF THE MID ATLANTIC COAST...STRONG NORTHWEST WINDS WILL DEVELOP ACROSS THE REGION. WINDS WILL INCREASE LATE THIS EVENING AND THROUGH THE OVERNIGHT HOURS. BY MONDAY MORNING SUSTAINED WINDS OF 20 TO 30 MPH WITH WIND GUSTS TO AROUND 50 MPH ARE EXPECTED. THE STRONG WINDS WILL CONTINUE INTO MONDAY EVENING BEFORE DIMINISHING. A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. $$ MANNING
6 follow-up statements
000 WWUS71 KLWX 160158 NPWLWX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 958 PM EDT SUN APR 15 2007 MDZ003-004-501-502-VAZ021-025>031-036>042-050-051-WVZ050>055- 501>504-161000- /O.CON.KLWX.HW.W.0002.000000T0000Z-070417T0600Z/ WASHINGTON-FREDERICK MD-EXTREME WESTERN ALLEGANY- CENTRAL AND EASTERN ALLEGANY-HIGHLAND-AUGUSTA-ROCKINGHAM- SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-ALBEMARLE- GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN-ORANGE-CULPEPER- HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT- EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...FROSTBURG... CUMBERLAND...STAUNTON...WAYNESBORO...HARRISONBURG...WINCHESTER... FRONT ROYAL...CHARLOTTESVILLE...WASHINGTON...LEESBURG... CULPEPER...MARTINSBURG...CHARLES TOWN...BAYARD...PETERSBURG... EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY 958 PM EDT SUN APR 15 2007 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY. AS LOW PRESSURE RAPIDLY STRENGTHENS OFF THE MID ATLANTIC COAST... STRONG NORTHWEST WINDS WILL DEVELOP ACROSS THE REGION. WINDS WILL CONTINUE TO INCREASE THROUGH THE OVERNIGHT HOURS. BY MONDAY MORNING SUSTAINED WINDS OF 25 TO 35 MPH WITH WIND GUSTS TO 60 MPH ARE EXPECTED. LOCALLY HIGHER WIND GUSTS ARE POSSIBLE OVER HIGHER TERRAIN. THE STRONG WINDS WILL CONTINUE INTO MONDAY EVENING BEFORE DIMINISHING. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. $$ DCZ001-MDZ005>007-009>011-013-014-016>018-VAZ052>057-161000- /O.CON.KLWX.WI.Y.0005.000000T0000Z-070417T0600Z/ DISTRICT OF COLUMBIA-CARROLL-NORTHERN BALTIMORE-HARFORD- MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL- CHARLES-ST. MARYS-CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK- FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- INCLUDING THE CITIES OF...WASHINGTON...WESTMINSTER... GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS...WALDORF... ST MARYS CITY...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA... FALLS CHURCH...FREDERICKSBURG 958 PM EDT SUN APR 15 2007 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... A WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY. AS LOW PRESSURE RAPIDLY STRENGTHENS OFF THE MID ATLANTIC COAST... STRONG NORTHWEST WINDS WILL DEVELOP ACROSS THE REGION. WINDS WILL CONTINUE TO INCREASE THROUGH THE OVERNIGHT HOURS. BY MONDAY MORNING SUSTAINED WINDS OF 20 TO 30 MPH WITH WIND GUSTS TO AROUND 50 MPH ARE EXPECTED. THE STRONG WINDS WILL CONTINUE INTO MONDAY EVENING BEFORE DIMINISHING. A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. $$
000 WWUS71 KLWX 160727 NPWLWX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 327 AM EDT MON APR 16 2007 DCZ001-MDZ005>007-009>011-013-014-016>018-VAZ052>057-161530- /O.EXB.KLWX.HW.W.0002.070416T1500Z-070416T2200Z/ /O.EXT.KLWX.WI.Y.0005.000000T0000Z-070416T1500Z/ /O.EXT.KLWX.WI.Y.0005.070416T2200Z-070417T0600Z/ DISTRICT OF COLUMBIA-CARROLL-NORTHERN BALTIMORE-HARFORD- MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL- CHARLES-ST. MARYS-CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK- FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- INCLUDING THE CITIES OF...WASHINGTON...WESTMINSTER... GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS...WALDORF... ST MARYS CITY...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA... FALLS CHURCH...FREDERICKSBURG 327 AM EDT MON APR 16 2007 ...WIND ADVISORY NOW IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...HIGH WIND WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT THIS AFTERNOON... ...WIND ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO 2 AM EDT TUESDAY... THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT THIS AFTERNOON. THE WIND ADVISORY IS NOW IN EFFECT UNTIL 11 AM EDT THIS MORNING. THE WIND ADVISORY IS NOW IN EFFECT FROM 6 PM THIS EVENING TO 2 AM EDT TUESDAY. STRONG NORTHWEST WINDS HAVE DEVELOPED ACROSS THE REGION AS STRONG LOW PRESSURE DEEPENS OFF THE MID ATLANTIC COAST. THIS MORNING WINDS OF 30 MPH WITH GUSTS TO 50 MPH WILL INCREASE DURING THE MORNING HOURS...BRINGING GUSTS TO 60 MPH LATE THIS MORNING AND THIS AFTERNOON. THE STRONG WINDS WILL BEGIN TO DIMINISH MONDAY EVENING. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE...DOWNED TREES AND POWER OUTAGES. $$ MDZ003-004-501-502-VAZ021-025>031-036>042-050-051-WVZ050>055- 501>504-161530- /O.CON.KLWX.HW.W.0002.000000T0000Z-070417T0600Z/ WASHINGTON-FREDERICK MD-EXTREME WESTERN ALLEGANY- CENTRAL AND EASTERN ALLEGANY-HIGHLAND-AUGUSTA-ROCKINGHAM- SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-ALBEMARLE- GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN-ORANGE-CULPEPER- HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT- EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...FROSTBURG... CUMBERLAND...STAUNTON...WAYNESBORO...HARRISONBURG...WINCHESTER... FRONT ROYAL...CHARLOTTESVILLE...WASHINGTON...LEESBURG... CULPEPER...MARTINSBURG...CHARLES TOWN...BAYARD...PETERSBURG... EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY 327 AM EDT MON APR 16 2007 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY. AS LOW PRESSURE RAPIDLY STRENGTHENS OFF THE MID ATLANTIC COAST... STRONG NORTHWEST WINDS WILL DEVELOP ACROSS THE REGION. WINDS WILL CONTINUE TO INCREASE THROUGH THE OVERNIGHT HOURS. BY MONDAY MORNING SUSTAINED WINDS OF 25 TO 35 MPH WITH WIND GUSTS TO 60 MPH ARE EXPECTED. LOCALLY HIGHER WIND GUSTS ARE POSSIBLE OVER HIGHER TERRAIN. THE STRONG WINDS WILL CONTINUE INTO MONDAY EVENING BEFORE DIMINISHING. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE...DOWNED TREES AND POWER OUTAGES. $$
000 WWUS71 KLWX 161234 AAA NPWLWX URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 834 AM EDT MON APR 16 2007 DCZ001-MDZ005>007-009>011-013-014-016>018-VAZ052>057-162045- /O.UPG.KLWX.WI.Y.0005.000000T0000Z-070416T1500Z/ /O.UPG.KLWX.WI.Y.0005.070416T2200Z-070417T0600Z/ /O.EXT.KLWX.HW.W.0002.070416T1234Z-070417T0600Z/ DISTRICT OF COLUMBIA-CARROLL-NORTHERN BALTIMORE-HARFORD- MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL- CHARLES-ST. MARYS-CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK- FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- INCLUDING THE CITIES OF...WASHINGTON...WESTMINSTER... GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS...WALDORF... ST MARYS CITY...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA... FALLS CHURCH...FREDERICKSBURG 834 AM EDT MON APR 16 2007 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 2 AM EDT TUESDAY... THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 2 AM EDT TUESDAY. THE WIND ADVISORY IS NO LONGER IN EFFECT. STRONG NORTHWEST WINDS HAVE DEVELOPED ACROSS THE REGION AS STRONG LOW PRESSURE DEEPENS OFF THE MID ATLANTIC COAST. THIS MORNING WINDS OF 30 MPH WITH GUSTS TO 50 MPH WILL INCREASE DURING THE MORNING HOURS...BRINGING GUSTS TO 60 MPH LATE THIS MORNING AND THIS AFTERNOON. THE STRONG WINDS WILL BEGIN TO DIMINISH MONDAY EVENING. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE...DOWNED TREES AND POWER OUTAGES. $$ MDZ003-004-501-502-VAZ021-025>031-036>042-050-051-WVZ050>055- 501>504-162045- /O.CON.KLWX.HW.W.0002.000000T0000Z-070417T0600Z/ WASHINGTON-FREDERICK MD-EXTREME WESTERN ALLEGANY- CENTRAL AND EASTERN ALLEGANY-HIGHLAND-AUGUSTA-ROCKINGHAM- SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-ALBEMARLE- GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN-ORANGE-CULPEPER- HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT- EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...FROSTBURG... CUMBERLAND...STAUNTON...WAYNESBORO...HARRISONBURG...WINCHESTER... FRONT ROYAL...CHARLOTTESVILLE...WASHINGTON...LEESBURG... CULPEPER...MARTINSBURG...CHARLES TOWN...BAYARD...PETERSBURG... EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY 834 AM EDT MON APR 16 2007 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY. AS LOW PRESSURE RAPIDLY STRENGTHENS OFF THE MID ATLANTIC COAST... STRONG NORTHWEST WINDS WILL DEVELOP ACROSS THE REGION. SUSTAINED WINDS OF 25 TO 35 MPH WITH WIND GUSTS TO 60 MPH ARE EXPECTED. LOCALLY HIGHER WIND GUSTS ARE POSSIBLE OVER HIGHER TERRAIN. THE STRONG WINDS WILL CONTINUE INTO MONDAY EVENING BEFORE DIMINISHING. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE...DOWNED TREES AND POWER OUTAGES. $$
000 WWUS71 KLWX 161514 NPWLWX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1114 AM EDT MON APR 16 2007 DCZ001-MDZ003>007-009>011-013-014-016>018-501-502-VAZ021-025>031- 036>042-050>057-WVZ050>055-501>504-162315- /O.CON.KLWX.HW.W.0002.000000T0000Z-070417T0600Z/ DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL- NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE- PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-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-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY- WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- INCLUDING THE CITIES OF...WASHINGTON...HAGERSTOWN...FREDERICK... WESTMINSTER...GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS... WALDORF...ST MARYS CITY...FROSTBURG...CUMBERLAND...STAUNTON... WAYNESBORO...HARRISONBURG...WINCHESTER...FRONT ROYAL... CHARLOTTESVILLE...LEESBURG...CULPEPER...MANASSAS... MANASSAS PARK...FAIRFAX...ALEXANDRIA...FALLS CHURCH... FREDERICKSBURG...MARTINSBURG...CHARLES TOWN...BAYARD... PETERSBURG...EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY 1114 AM EDT MON APR 16 2007 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY. DEEP LOW PRESSURE WILL REMAIN STALLED NEAR NEW YORK HARBOR THROUGH TONIGHT. AS A RESULT...EXPECT SUSTAINED WINDS OF 25 TO 35 MPH WITH WIND GUSTS TO 60 MPH THIS AFTERNOON AND INTO THE EVENING. LOCALLY HIGHER WIND GUSTS ARE POSSIBLE OVER HIGHER TERRAIN. THE STRONG WINDS WILL CONTINUE TONIGHT BEFORE DIMINISHING. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE...DOWNED TREES AND POWER OUTAGES. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATER UPDATES ON THIS SITUATION. $$ HTS
000 WWUS71 KLWX 161917 NPWLWX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 317 PM EDT MON APR 16 2007 DCZ001-MDZ003>007-009>011-013-014-016>018-501-502-VAZ021-025>031- 036>042-050>057-WVZ050>055-501>504-170330- /O.CON.KLWX.HW.W.0002.000000T0000Z-070417T0600Z/ DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL- NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE- PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-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-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY- WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- INCLUDING THE CITIES OF...WASHINGTON...HAGERSTOWN...FREDERICK... WESTMINSTER...GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS... WALDORF...ST MARYS CITY...FROSTBURG...CUMBERLAND...STAUNTON... WAYNESBORO...HARRISONBURG...WINCHESTER...FRONT ROYAL... CHARLOTTESVILLE...LEESBURG...CULPEPER...MANASSAS... MANASSAS PARK...FAIRFAX...ALEXANDRIA...FALLS CHURCH... FREDERICKSBURG...MARTINSBURG...CHARLES TOWN...BAYARD... PETERSBURG...EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY 317 PM EDT MON APR 16 2007 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY. DEEP LOW PRESSURE OVER LONG ISLAND WILL BE GRADUALLY WEAKENING AS IT DRIFTS TO THE EAST AND OUT TO SEA. EXPECT SUSTAINED WINDS OF 25 TO 35 MPH WITH WIND GUSTS TO 55 TO 60 MPH THIS EVENING. LOCALLY HIGHER WIND GUSTS ARE POSSIBLE OVER HIGHER TERRAIN. WINDS WILL GRADUALLY SUBSIDE TONIGHT...BUT GUSTS TO 45 MPH WILL STILL BE POSSIBLE OVERNIGHT. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE...DOWNED TREES AND POWER OUTAGES. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR UPDATES ON THIS SITUATION. $$ HTS
000 WWUS71 KLWX 162320 NPWLWX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 720 PM EDT MON APR 16 2007 DCZ001-MDZ003>007-009>011-013-014-016>018-501-502-VAZ021-025>031- 036>042-050>057-WVZ050>055-501>504-170400- /O.CAN.KLWX.HW.W.0002.000000T0000Z-070417T0600Z/ /O.NEW.KLWX.WI.Y.0006.070416T2320Z-070417T0400Z/ DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL- NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE- PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-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-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY- WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- INCLUDING THE CITIES OF...WASHINGTON...HAGERSTOWN...FREDERICK... WESTMINSTER...GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS... WALDORF...ST MARYS CITY...FROSTBURG...CUMBERLAND...STAUNTON... WAYNESBORO...HARRISONBURG...WINCHESTER...FRONT ROYAL... CHARLOTTESVILLE...LEESBURG...CULPEPER...MANASSAS... MANASSAS PARK...FAIRFAX...ALEXANDRIA...FALLS CHURCH... FREDERICKSBURG...MARTINSBURG...CHARLES TOWN...BAYARD... PETERSBURG...EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY 720 PM EDT MON APR 16 2007 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT. THE HIGH WIND WARNING HAS BEEN CANCELLED. DEEP LOW PRESSURE NEAR LONG ISLAND WILL GRADUALLY WEAKEN AS IT DRIFTS TO THE EAST AND OUT TO SEA. WIND GUSTS OF 45 TO 50 MPH WILL OCCUR THROUGH THE EVENING HOURS...WITH LOCALLY HIGHER WIND GUSTS POSSIBLE ACROSS THE HIGHER TERRAIN. WINDS WILL GRADUALLY SUBSIDE OVERNIGHT. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR UPDATES ON THIS SITUATION. $$ LISTEMAA
What forecasters said that day
The local office's own words before this high wind 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 high wind warning went out at Apr 15, 11:04 AM EDT, 4 hours 47 minutes earlier.
Area forecast discussion, Apr 15, 11:04 AM EDT, 4 hours 47 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1104 AM EDT SUN APR 15 2007
.SHORT TERM /REST OF TODAY/...
LOPRES IN WRN NC ATTM...MVG NE. ALNG THE METRO CORRIDOR...THERE
HV BEEN SVRL ATTEMPTS AT A DRY SLOT...EACH OF WHICH HAS FILLED IN.
SOLID STREAM OF MSTR UP THE SPINE OF THE PTMC HIGHLANDS THO. WL
MAKE NO CHGS TO THE FAA...ALTHO MOST OF THAT AREA ALREADY HAS ACTV
FLW. ALSO FLWS FOR MOST OF THE PTMC HIGHLANDS. SEE SPECIFIC STMTS
FOR VALID TIMES AND DETAILS.
RGNL MOSAIC INDICATES THAT BACK EDGE SVRL HRS AWAY. EVEN A LTL
ENHANCEMENT IN RAFL RATES THX TO CNVCTV ELEMENTS. RUC/NAM INSIST
THAT HVYST RAFL WL BE IN THE I-95 CORRIDOR BTWN DC-BALT. WL BLEND
RADAR AND GDNC. OVRALL THEME WL BE TO SLOW DOWN THE ENDING TIME OF
THE PCPN. FEW OTR CHGS TO GRIDS ATTM.
RUNNING LATE. UPDTS OUT ASAP.
&&
.AVIATION /15Z-12Z/...
IFR/LIFR CIGS AND IFR VSBYS ATTM. IMPVMNT COMES TNGT ONCE LOPRES
CLEARS AREA.
&&
.MARINE...
TPLM2 AT STRONG SCA. MOST OTR SITES MARGINAL AT BEST. STILL A
POWERFUL CYCLONE HEADING THIS WAY /992 MB IN WRN NC/...SO WL RIDE
OUT ANY LULL. ALL HEADLINES CONTINUE.
&&
.PREV DISCUSSION...
/ISSUED 405 AM EDT SUN APR 15 2007/
SHORT TERM (TODAY THROUGH TONIGHT)...
WATER VAPOR LOOP SHOWS A WAVE MOVING INTO THE TENNESSEE VALLEY AS A
SECOND SHORT WAVE DROPS SOUTH INTO THE MIDWEST. ACARS 400-250MB WIND
OBSERVATIONS REVEAL A POSITIVELY TILTED UPPER LEVEL TROUGH ACROSS
THE MIDDLE MISSISSIPPI RIVER VALLEY...WITH A 120-160KT SOUTHWESTERLY
JET EXTENDING FROM THE PLAINS THROUGH THE EASTERN GREAT LAKES. 03Z
SURFACE ANALYSIS PLACED A 1001MB CYCLONE IN EASTERN KENTUCKY...ALONG
THE NEXT COLD FRONT. A WARM FRONT EXTENDED NORTHEAST FROM A 1002MB
CYCLONE IN EAST CENTRAL ALABAMA THROUGH CENTRAL NORTH CAROLINA.
ACARS UPPER LEVEL WIND DATA HAS BEEN ABLE TO SHOW A SUBTLE 120-140KT
SOUTHWESTERLY JETLET ACROSS THE EASTERN GREAT LAKES. PRECIPITATION
ACROSS THE OHIO VALLEY LINES UP WELL WHERE JET COUPLING SEEMS TO BE
OCCURRING. THE FLIP SIDE TO THIS IS THE DEVELOPMENT OF A DRY SLOT
(DRAWN IN FROM BACKSIDE OF SOUTHEAST CONUS CONVECTION) OVERHEAD. AS
THE JETLET ACROSS THE EASTERN GREAT LAKES MOVES AWAY FROM THE
REGION...EXPECT RESULTANT VERTICAL CIRCULATIONS TO DIMINISH.
MEANWHILE...5MB PRESSURE FALLS HAVE BEEN OCCURRING ACROSS CENTRAL
VIRGINIA BETWEEN 3-6Z. THERE IS STILL A DYNAMIC SITUATION ACROSS THE
REGION...EVIDENCED BY SHOWER AND THUNDERSTORM REDEVELOPMENT WITHIN
THE DRYSLOT DURING THE PAST SEVERAL HOURS. ISENTROPIC LIFT OVER THE
WARM FRONT TO THE SOUTHEAST WILL PERSIST THROUGH THE MORNING...WHICH
SHOULD LEAD TO THE REDEVELOPMENT OF MODERATE TO HEAVY RAIN ACROSS
THE REGION. WHILE 00Z MODEL SUITE (ESPECIALLY GFS AND KLWX WRF-NMM)
DID NOT CLEARLY INDICATE BREAK IN PRECIPITATION...OBSERVATIONAL
TRENDS DO SUPPORT MODEL INDICATIONS OF RAIN AXIS DURING THE MORNING
HOURS.
RAIN PROCESS WILL BE EFFICIENT THIS MORNING...OWING TO WARM CLOUD
DEPTH UP TO 15KFT (-5C LEVEL)...PRECIPITABLE WATER VALUES GREATER
THAN 2 STANDARD DEVIATIONS ABOVE CLIMATOLOGY...AND AMOUNT OF LOW
LEVEL FORCING ASSOCIATED WITH FRONTOGENESIS.
WARM FRONT MAY LIFT INTO SOUTHEAST ZONES THIS MORNING...WHERE
WARMEST HIGHS ARE INDICATED. COLD ADVECTION WILL BEGIN DURING THE
MID AFTERNOON IN THE HIGHER TERRAIN...WHERE COOLING TEMPERATURES MAY
SUPPORT SNOW SHOWERS MIXING IN WITH RAIN.
TONIGHT WILL BE A TRANSITION PERIOD. AS THE COASTAL STORM DEEPENS
WITHIN THE NEW ENGLAND WATERS...PRESSURE/HEIGHT GRADIENT WILL
SUPPORT STRENGTHENING NORTHWEST WIND GUSTS. WHILE UPPER LOW WILL BE
NEARBY...EXPECT DRYING BOUNDARY LAYER TO CONTRIBUTE TO DRYING
CONDITIONS EAST OF THE MOUNTAINS DURING THE NIGHT. ACROSS THE
UPSLOPE AREAS...00Z NAM AND 21Z SHORT RANGE ENSEMBLES INDICATE
POSSIBILITY OF 1-3 INCHES OF SNOW. WILL HAVE TO MONITOR PAN HANDLE
REGION OF WEST VIRGINIA AND MARYLAND...WITH SUCH STRONG
FLOW...SHOWERS MAY MAKE IT TO THE BLUE RIDGE.
HAVE WARMED UP MOS GUIDANCE TONIGHT GIVEN GUSTY NORTHWEST FLOW.
TEMPERATURES WILL BE CLOSE TO A FREEZE WARNING CRITERIA IN THE
HIGHER TERRAIN ALONG AND WEST OF THE BLUE RIDGE...BUT CONFIDENCE NOT
HIGH ENOUGH TO WARRANT A WATCH FOR SUCH A SMALL AREA.
AVIATION...
MODERATE TO HEAVY RAIN AXIS EXPECTED TO DEVELOP OVER TERMINALS EARLY
THIS MORNING...CONTINUING TO SUPPORT LIFR-IFR CEILINGS/VISIBILITIES.
DOWNSLOPE COMPONENT INCREASES THIS AFTERNOON...ALLOWING FOR
IMPROVEMENT. GRADIENT BEHIND DEEPENING COASTAL STORM WILL SUPPORT
GUSTY NORTHWEST WINDS THIS EVENING AND OVERNIGHT.
MARINE...
00Z GFS/ETA MOS AT THOMAS POINT INDICATE SUSTAINED WINDS 25KTS EARLY
THIS MORNING....DECREASING TO 15-20KTS THIS AFTERNOON...BEFORE
INCREASING BACK TO 25KTS TONIGHT. 00Z NAM/GFS PROXIMITY BUFKIT
FORECAST SOUNDINGS INDICATE WIND GUSTS NEARING GALES AFTER
MIDNIGHT.
GALE CONDITIONS EXPECTED FOR MON INTO MON EVENING. EXPECT NW WINDS
OF NEAR SMALL CRAFT TO CONTINUE OVERNIGHT MON NIGHT THROUGH TUE.
WINDS WILL SLACKEN ON WED AND THUR AS WEAK HIGH PRES OVER THE GREAT
LAKES BUILDS ACROSS THE REGION.
TIDES...
WATER LEVELS ARE CURRENTLY LESS THAN A HALF FOOT BELOW ASTRONOMICAL
PREDICTIONS. THE CHESAPEAKE BAY OPERATIONAL FORECAST SYSTEM AND NOAA
EXTRATROPICAL STORM SURGE MODEL INDICATE WATER LEVELS WILL RISE TO
ABOUT A FOOT ABOVE ASTRONOMICAL PREDICTIONS THIS MORNING. THE LUNAR
PHASE IS WANING TOWARD A NEW MOON (7% FULL).
WATER LEVELS WILL HAVE TO BE MONITORED THIS MORNING AS STRONG
SOUTHEAST FLOW IS EXPECTED ALLOW POSITIVE TIDAL DEPARTURES TO
DEVELOP. DO NOT EXPECT DEPARTURES TO RISE ABOVE NUISANCE COASTAL
FLOOD LEVELS GIVEN THE SPEED OF THE SYSTEM.
EXPECT BLOWOUT CONDITIONS TO DEVELOP TONIGHT INTO EARLY NEXT WEEK AS
THE DEEP COASTAL STORM MOVES OFFSHORE.
LONG TERM /MONDAY THROUGH SATURDAY/...
DEEP LOW PRESSURE WILL BRING DREARY AND UNSEASONABLY COLD CONTINUES
THROUGH THURS THEN A MODERATION OF TEMPERATURES BEGINS TOWARDS THE
WEEKEND.
AN UNSEASONABLY DEEP SURFACE LOW PRESSURE CENTER IS PROGGED TO BE
LOCATED SOMEWHERE NEAR NYC. BASED UPON 21Z/14 SREFS CENTRAL PRESSURE
WILL BE 979MB BY 12Z MON. THE 00Z GFS HAS IT DOWN TO 974 MB. BY NOON
ON MON THE LOW BECOMES NEARLY VERTICALLY STACKED WITH THE UPPER
LEVELS AND BEGINS TO FILL. THE LOW WILL DRIFT EAST AND AWAY FROM THE
AREA ON TUE AND WED...THEN HIGH PRESSURE WILL BUILD ACROSS THE
REGION FOR THE LATER PART OF THE WEEK. FOR SATURDAY THE HIGH
NESTLES OVER THE MID ATLANTIC REGION AND PERHAPS GIVES THE AREA
ANOTHER TASTE OF SPRING.
FOR MON...TWO CONCERNS: WINDS AND UPSLOPE SNOW. A VERY TIGHT SURFACE
PRESSURE GRADIENT AND STRONG LOW-LEVEL CYCLONIC FLOW AROUND THE LOW
OVER SOUTHERN NY WILL DOMINATE THE WEATHER. STRONG AND GUSTY
NORTHWEST WINDS ACCROSS THE REGION WILL LIKELY APPROACH WIND
ADVISORY CONDITIONS BUT WILL NOT BE STRONG ENOUGH TO WARRANT ANY
TYPE OF HIGH WIND WARCH. THE OTHER CONCERN WILL BE THE CONTINUATION
OF ACCUMULATING SNOW IN THE FAR WESTERN ZONES IN UPSLOPE PORTIONS.
FOR MON NIGHT...COLD TEMPS ONCE AGAIN ARE FORECAST...WITH SOME SPOTS
ALONG AND TO THE WEST OF THE BLUE RIDGE EXPECTED TO DROP TO NEAR
FREEZING. HOWEVER...STRONG NW CYCLONIC FLOW WILL STILL BE WITH US
WHICH WLL HELP MINIMZIE THREAT OF WIDESPREAD FREEZING CONDITIONS.
FOR TUE...GRADUAL DRYING AND ABATEMENT OF WINDS AS THE SURFACE LOW
PUSHES OUT TO SEA.
FOR WED TO SAT...HIGH PRES OVER THE GREAT LAKES ON WED WILL MOVE
SLOWLY EAST TO A POSITION OVER THE MID ATLANTIC BY LATE FRI. DID NOT
MAKE SIGNIFICANT CHANGES IN THIS PART OF THE LONG TERM...AND
CONTINUED WITH DRY WEATHER AND GRADUAL MODERATION IN TEMPS.
&&
.LWX WATCHES/WARNINGS/ADVISORIES...
DC...FLOOD WATCH UNTIL 4 PM EDT THIS AFTERNOON FOR DCZ001.
MD...FLOOD WATCH UNTIL 4 PM EDT THIS AFTERNOON FOR MDZ004>007-
009>011-013-014-016>018.
WINTER STORM WATCH FROM 8 PM EDT THIS EVENING THROUGH MONDAY
MORNING FOR MDZ501.
VA...FLOOD WATCH UNTIL 4 PM EDT THIS AFTERNOON FOR VAZ036>042-
050>057.
WV...WINTER STORM WATCH FROM 8 PM EDT THIS EVENING THROUGH MONDAY
MORNING FOR WVZ501-503.
MARINE...SMALL CRAFT ADVISORY UNTIL 4 AM EDT MONDAY FOR ANZ530>537.
GALE WARNING FROM 4 AM TO 11 PM EDT MONDAY FOR ANZ530>537.
&&
SHORT TERM/AVIATION/MARINE...HTS
PREVIOUS DISCUSSION...ROGOWSKI/SMZHazardous weather outlook, Apr 15, 12:01 PM EDT, 3 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1201 PM EDT SUN APR 15 2007 ANZ530>537-DCZ001-MDZ003>007-009>011-013-014-016>018-501-502- VAZ021-025>031-036>042-050>057-WVZ050>055-501>504-161000- 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-WASHINGTON-FREDERICK MD-CARROLL- NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE- PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-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-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY- WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- 607 AM EDT SUN APR 15 2007 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...TODAY AND TONIGHT A STRONG LOW CONTINUES TO DEVELOP THIS AFTERNOON OVER WESTERN NORTH CAROLINA AND MOVE OFF THE COAST NEAR DELAWARE. THE LOW WILL MOVE NORTHEAST AND AWAY FROM THE REGION BY LATE MONDAY. A FLOOD WATCH CONTINUES FOR AREAS EAST OF THE BLUE RIDGE MOUNTAINS THROUGH THIS AFTERNOON...WITH FLOOD WARNINGS IN EFFECT FOR MUCH OF THE BALTIMORE WASHINGTON CORRIDOR AS WELL AS THE POTOMAC HIGHLANDS. PLEASE SEE WEATHER.GOV/WASHINGTON ON THE INTERNET FOR SPECIFIC WARNING INFORMATION AND VALID TIMES. WIDESPREAD TOTAL STORM RAINFALL AMOUNTS OF ONE AND A HALF TO THREE INCHES ARE EXPECTED...WITH THE HIGHER AMOUNTS IN THE POTOMAC HIGHLANDS AND IN THE POPULOUS INTERSTATE 95 CORRIDOR. IN ADDITION...AREA RIVERS WILL BE RISING FAST...EXCEEDING CAUTIONARY STAGES. A FEW GAGES IN THE UPPER REACHES OF THE POTOMAC BASIN MAY REACH FLOOD STAGE TONIGHT. A WINTER STORM WATCH IS IN EFFECT ACROSS THE WESTERN SLOPES OF THE ALLEGHENY MOUNTAINS FROM THIS EVENING THROUGH MONDAY MORNING. POTENTIAL TOTAL SNOWFALL OF 2 UP TO 5 INCHES IS POSSIBLE. ALSO...TEMPERATURES IN SOME SPOTS ALONG AND WEST OF THE BLUE RIDGE TONIGHT COULD DIP TO NEAR FREEZING. GUSTY NORTHWEST WINDS DEVELOPING TONIGHT SHOULD HELP DRY PAVED SURFACES LATE THIS AFTERNOON AND OVERNIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY UPSLOPE SNOWFALL IS LIKELY TO CONTINUE ALONG THE WESTERN RIDGES OF THE ALLEGHENY FRONT MONDAY. AS THE LOW DEEPENS AND MOVES UP THE COAST STRONG NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS 35 TO 45 MPH ARE LIKELY ON MONDAY INTO MONDAY NIGHT. ON THE WATERS...GALE WARNINGS ARE IN EFFECT FOR THE MARYLAND PORTION OF THE CHESAPEAKE BAY AND THE ENTIRE TIDAL POTOMAC FOR MONDAY AND MONDAY EVENING. TIDAL WATER LEVELS ON THE POTOMAC AND THE MARYLAND PORTION OF THE CHESAPEAKE BAY ARE NOT EXPECTED TO BE PROBLEMATIC...WITH BLOW OUT TIDES LIKELY ON MONDAY INTO TUESDAY. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS SHOULD BE PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON. HTS
In the hours before
Local storm report, Apr 15, 11:05 AM EDT, 4 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1105 AM EDT SUN APR 15 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1016 AM FLOOD MANASSAS 38.75N 77.49W
04/15/2007 CITY OF MANASSAS VA FIRE DEPT/RESCUE
THE FIRE MARSHALLS OFFICE REPORTS WATER IS RUNNING ACROSS
THE ROAD AT THE INTERSECTION OF HASTINGS RUN AND
LUCASVILLE, AND THE INTERSECTIO OF CROCKETT ROAD AND
LUCASVILLE ROAD IN THE CITY OF MANASSAS.
&&
DECARUFLLocal storm report, Apr 15, 12:23 PM EDT, 3 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1223 PM EDT SUN APR 15 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM FLOOD 1 S HIGH VIEW 39.22N 78.41W
04/15/2007 FREDERICK VA TRAINED SPOTTER
CREEKS AND STREAMS OUT OF BANKS.
&&
HTSLocal storm report, Apr 15, 12:56 PM EDT, 2 hours 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1256 PM EDT SUN APR 15 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1043 AM FLOOD 4 S EMMITSBURG 39.65N 77.33W
04/15/2007 FREDERICK MD EMERGENCY MNGR
FREDERICK COUNTY EMERGENCY MANAGEMANT OFFICE REPORTED
ROUTE 76 CLOSED AT FOUR POINTS ROAD DUE TO FLOODING
1100 AM FLOOD EMMITSBURG 39.70N 77.33W
04/15/2007 FREDERICK MD EMERGENCY MNGR
FREDERICK COUNTY EMERGENCY MANAGEMENT OFFICE REPORTED
IRISHTOWN ROAD CLOSED DUE TO FLOODING AT NORTH SETON
AVENUE IN EMMITSBURG
&&
CMEADOWSSpecial weather statement, Apr 15, 1:28 PM EDT, 2 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 128 PM EDT SUN APR 15 2007 MDZ017-018-151800- CALVERT MD-ST. MARYS MD- 128 PM EDT SUN APR 15 2007 ...STRONG THUNDERSTORM IN SOUTHERN MARYLAND... AT 128 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER NORTHERN SAINT MARYS COUNTY...MOVING NORTHEAST AT 50 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 40 MPH. THE COMMUNITIES OF GOLDEN BEACH AND PRINCE FREDERICK WILL BE AFFECTED BY THIS STORM THROUGH 200 PM EDT. MANNING
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 3:51 PM EDT | Wind Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Prince George's and 2 more | 17 hr |
| Apr 15, 4:09 PM EDT | Snow Advisory | LWX | Allegany | 29 hr |
| Apr 15, 1:30 PM EDT | Special Marine Warning | LWX | 45 min |
Nearby
High Wind Warnings in Virginia, 2007High Wind Warnings in Maryland, 2007High Wind Warnings in West Virginia, 2007Every high wind 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.