IEM VTEC Product Browser
This application allows easy navigation of National Weather Service issued products with Valid Time Event Coding (VTEC).
13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.
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2025 [KLWX] BALTIMORE_MD/_WASHINGTON_DC Severe Thunderstorm (SV) Warning (W) Number 19
Listing of Counties/Parishes/Zones Included in Product
RADAR Composite at Issuance Time
Storm Based Warning History
323
WUUS51 KLWX 170041
SVRLWX
MDC021-043-VAC107-WVC037-170115-
/O.NEW.KLWX.SV.W.0019.250317T0041Z-250317T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Baltimore MD/Washington DC
841 PM EDT Sun Mar 16 2025
The National Weather Service in Sterling Virginia has issued a
* Severe Thunderstorm Warning for...
Southeastern Washington County in north central Maryland...
Central Frederick County in north central Maryland...
North central Loudoun County in northern Virginia...
East central Jefferson County in the Panhandle of West Virginia...
* Until 915 PM EDT.
* At 841 PM EDT, a severe thunderstorm was located over Harpers
Ferry, or near Charles Town, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damaging winds will cause some trees and large branches
to fall. This could injure those outdoors, as well as
damage homes and vehicles. Roadways may become blocked by
downed trees. Localized power outages are possible.
Unsecured light objects may become projectiles.
* Locations impacted include...
Myersville, Brownsville, Ballenger Creek, Libertytown, Utica,
Woodsboro, Thurmont, Clover Hill, Petersville, Bolivar,
Pleasantville, Lovettsville, Gapland, Graceham, Antietam,
Lewistown, Burkittsville, Brunswick, Frederick, and Harry Grove
Stadium.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail, damaging wind, and continuous cloud to ground lightning
are occurring with this storm. Move indoors immediately. Lightning is
one of nature's leading killers. Remember, if you can hear thunder,
you are close enough to be struck by lightning.
&&
LAT...LON 3922 7775 3939 7783 3969 7739 3945 7720
TIME...MOT...LOC 0041Z 232DEG 43KT 3929 7776
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CJL
638
WWUS51 KLWX 170049
SVSLWX
Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
849 PM EDT Sun Mar 16 2025
VAC107-WVC037-170059-
/O.CAN.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/
Loudoun VA-Jefferson WV-
849 PM EDT Sun Mar 16 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL LOUDOUN AND EAST
CENTRAL JEFFERSON COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 3931 7759 3931 7764 3947 7770 3969 7739
3945 7720
TIME...MOT...LOC 0049Z 232DEG 43KT 3935 7766
$$
MDC021-043-170115-
/O.CON.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/
Washington MD-Frederick MD-
849 PM EDT Sun Mar 16 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SOUTHEASTERN WASHINGTON AND CENTRAL FREDERICK COUNTIES IN NORTH
CENTRAL MARYLAND...
At 849 PM EDT, a severe thunderstorm was located over Brunswick, or 9
miles southeast of Shepherdstown, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damaging winds will cause some trees and large branches to
fall. This could injure those outdoors, as well as damage
homes and vehicles. Roadways may become blocked by downed
trees. Localized power outages are possible. Unsecured
light objects may become projectiles.
Locations impacted include...
Myersville, Brownsville, Ballenger Creek, Libertytown, Utica,
Woodsboro, Thurmont, Clover Hill, Petersville, Bolivar, Gapland,
Graceham, Lewistown, Burkittsville, Brunswick, Frederick, Harry Grove
Stadium, Bloomfield, Rosemont, and Mount Pleasant.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3931 7759 3931 7764 3947 7770 3969 7739
3945 7720
TIME...MOT...LOC 0049Z 232DEG 43KT 3935 7766
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CJL
185
WWUS51 KLWX 170054
SVSLWX
Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
854 PM EDT Sun Mar 16 2025
MDC043-170103-
/O.CAN.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/
Washington MD-
854 PM EDT Sun Mar 16 2025
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASHINGTON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 3934 7756 3952 7761 3969 7739 3945 7720
TIME...MOT...LOC 0053Z 232DEG 43KT 3939 7760
$$
MDC021-170115-
/O.CON.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/
Frederick MD-
854 PM EDT Sun Mar 16 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR CENTRAL FREDERICK COUNTY IN NORTH CENTRAL MARYLAND...
At 853 PM EDT, a severe thunderstorm was located near Brunswick, or
10 miles west of Harry Grove Stadium, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damaging winds will cause some trees and large branches to
fall. This could injure those outdoors, as well as damage
homes and vehicles. Roadways may become blocked by downed
trees. Localized power outages are possible. Unsecured
light objects may become projectiles.
Locations impacted include...
Frederick, Myersville, Harry Grove Stadium, Bloomfield, Mount
Pleasant, Jefferson, Discovery-Spring Garden, Clifton, Libertytown,
Utica, Woodsboro, Thurmont, Walkersville, Clover Hill, Bolivar,
Middletown In Frederick Md, Braddock Heights, Graceham, Lewistown,
and New Midway.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3934 7756 3952 7761 3969 7739 3945 7720
TIME...MOT...LOC 0053Z 232DEG 43KT 3939 7760
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CJL
396 WWUS51 KLWX 170107 SVSLWX Severe Weather Statement National Weather Service Baltimore MD/Washington DC 907 PM EDT Sun Mar 16 2025 MDC021-170116- /O.EXP.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/ Frederick MD- 907 PM EDT Sun Mar 16 2025 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FREDERICK COUNTY IN NORTH CENTRAL MARYLAND WILL EXPIRE AT 915 PM EDT... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, small hail up to dime size is still possible with this thunderstorm. && LAT...LON 3934 7756 3952 7761 3969 7739 3945 7720 TIME...MOT...LOC 0106Z 232DEG 43KT 3948 7744 $$ CJL
Permalink to 202503170041-KLWX-WUUS51-SVRLWX
323
WUUS51 KLWX 170041
SVRLWX
MDC021-043-VAC107-WVC037-170115-
/O.NEW.KLWX.SV.W.0019.250317T0041Z-250317T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Baltimore MD/Washington DC
841 PM EDT Sun Mar 16 2025
The National Weather Service in Sterling Virginia has issued a
* Severe Thunderstorm Warning for...
Southeastern Washington County in north central Maryland...
Central Frederick County in north central Maryland...
North central Loudoun County in northern Virginia...
East central Jefferson County in the Panhandle of West Virginia...
* Until 915 PM EDT.
* At 841 PM EDT, a severe thunderstorm was located over Harpers
Ferry, or near Charles Town, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damaging winds will cause some trees and large branches
to fall. This could injure those outdoors, as well as
damage homes and vehicles. Roadways may become blocked by
downed trees. Localized power outages are possible.
Unsecured light objects may become projectiles.
* Locations impacted include...
Myersville, Brownsville, Ballenger Creek, Libertytown, Utica,
Woodsboro, Thurmont, Clover Hill, Petersville, Bolivar,
Pleasantville, Lovettsville, Gapland, Graceham, Antietam,
Lewistown, Burkittsville, Brunswick, Frederick, and Harry Grove
Stadium.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail, damaging wind, and continuous cloud to ground lightning
are occurring with this storm. Move indoors immediately. Lightning is
one of nature's leading killers. Remember, if you can hear thunder,
you are close enough to be struck by lightning.
&&
LAT...LON 3922 7775 3939 7783 3969 7739 3945 7720
TIME...MOT...LOC 0041Z 232DEG 43KT 3929 7776
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CJL
Permalink to 202503170049-KLWX-WWUS51-SVSLWX
638
WWUS51 KLWX 170049
SVSLWX
Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
849 PM EDT Sun Mar 16 2025
VAC107-WVC037-170059-
/O.CAN.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/
Loudoun VA-Jefferson WV-
849 PM EDT Sun Mar 16 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL LOUDOUN AND EAST
CENTRAL JEFFERSON COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 3931 7759 3931 7764 3947 7770 3969 7739
3945 7720
TIME...MOT...LOC 0049Z 232DEG 43KT 3935 7766
$$
MDC021-043-170115-
/O.CON.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/
Washington MD-Frederick MD-
849 PM EDT Sun Mar 16 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SOUTHEASTERN WASHINGTON AND CENTRAL FREDERICK COUNTIES IN NORTH
CENTRAL MARYLAND...
At 849 PM EDT, a severe thunderstorm was located over Brunswick, or 9
miles southeast of Shepherdstown, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damaging winds will cause some trees and large branches to
fall. This could injure those outdoors, as well as damage
homes and vehicles. Roadways may become blocked by downed
trees. Localized power outages are possible. Unsecured
light objects may become projectiles.
Locations impacted include...
Myersville, Brownsville, Ballenger Creek, Libertytown, Utica,
Woodsboro, Thurmont, Clover Hill, Petersville, Bolivar, Gapland,
Graceham, Lewistown, Burkittsville, Brunswick, Frederick, Harry Grove
Stadium, Bloomfield, Rosemont, and Mount Pleasant.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3931 7759 3931 7764 3947 7770 3969 7739
3945 7720
TIME...MOT...LOC 0049Z 232DEG 43KT 3935 7766
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CJL
Permalink to 202503170054-KLWX-WWUS51-SVSLWX
185
WWUS51 KLWX 170054
SVSLWX
Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
854 PM EDT Sun Mar 16 2025
MDC043-170103-
/O.CAN.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/
Washington MD-
854 PM EDT Sun Mar 16 2025
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASHINGTON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 3934 7756 3952 7761 3969 7739 3945 7720
TIME...MOT...LOC 0053Z 232DEG 43KT 3939 7760
$$
MDC021-170115-
/O.CON.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/
Frederick MD-
854 PM EDT Sun Mar 16 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR CENTRAL FREDERICK COUNTY IN NORTH CENTRAL MARYLAND...
At 853 PM EDT, a severe thunderstorm was located near Brunswick, or
10 miles west of Harry Grove Stadium, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damaging winds will cause some trees and large branches to
fall. This could injure those outdoors, as well as damage
homes and vehicles. Roadways may become blocked by downed
trees. Localized power outages are possible. Unsecured
light objects may become projectiles.
Locations impacted include...
Frederick, Myersville, Harry Grove Stadium, Bloomfield, Mount
Pleasant, Jefferson, Discovery-Spring Garden, Clifton, Libertytown,
Utica, Woodsboro, Thurmont, Walkersville, Clover Hill, Bolivar,
Middletown In Frederick Md, Braddock Heights, Graceham, Lewistown,
and New Midway.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3934 7756 3952 7761 3969 7739 3945 7720
TIME...MOT...LOC 0053Z 232DEG 43KT 3939 7760
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CJL
Permalink to 202503170107-KLWX-WWUS51-SVSLWX
396 WWUS51 KLWX 170107 SVSLWX Severe Weather Statement National Weather Service Baltimore MD/Washington DC 907 PM EDT Sun Mar 16 2025 MDC021-170116- /O.EXP.KLWX.SV.W.0019.000000T0000Z-250317T0115Z/ Frederick MD- 907 PM EDT Sun Mar 16 2025 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FREDERICK COUNTY IN NORTH CENTRAL MARYLAND WILL EXPIRE AT 915 PM EDT... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, small hail up to dime size is still possible with this thunderstorm. && LAT...LON 3934 7756 3952 7761 3969 7739 3945 7720 TIME...MOT...LOC 0106Z 232DEG 43KT 3948 7744 $$ CJL
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