Alert archive / Maryland / Tornado Warnings in 2026
Tornado Warning 16, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Jul 18, 2026, 2:33 PM EDT for Frederick County, Montgomery County, Maryland. It was in force for 17 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 18, 2026, 2:33 PM EDT (18:33 UTC)
- Expired
- Jul 18, 2026, 2:50 PM EDT
- In force
- 17 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.75 in
Counties Frederick County, MD, Montgomery County, MD
The radar
The Sterling radar (KLWX), 40 km from the middle of the area, began a volume at 18:36 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 1:55 PM EDT | Tornado Watch | SPC | 6 hr |
| Jul 18, 2:14 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 6.6 hours before the alert went out and 40 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
- 1396 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 5.1
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Jul 18, 11:48 AM EDT, 2 hours 45 minutes earlier.
Area forecast discussion, Jul 18, 11:48 AM EDT, 2 hours 45 minutes before
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</html>Hazardous weather outlook, Jul 18, 2:20 PM EDT, 13 minutes before
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 220 PM EDT Sat Jul 18 2026 ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508- VAZ053>057-527-191830- 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- Patapsco River including Baltimore Harbor- Chester River to Queenstown MD-Eastern Bay- Choptank River to Cambridge MD and the Little Choptank River- Patuxent River to Broomes Island MD- Tangier Sound and the inland waters surrounding Bloodsworth Island-District of Columbia-Cecil-Southern Baltimore- Prince Georges-Anne Arundel-Charles-St. Marys-Calvert- Central and Southeast Montgomery-Central and Southeast Howard- Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria- Stafford-Spotsylvania-King George- Central and Southeast Prince William/Manassas/Manassas Park- 220 PM EDT Sat Jul 18 2026 This Hazardous Weather Outlook is for the Maryland portion of the Chesapeake Bay, Tidal Potomac River, and I-95 corridor through central Maryland, northern Virginia, and District of Columbia. .DAY ONE...This Afternoon and Tonight A Heat Advisory is in effect until 7 PM for much of the area from Baltimore southward. A Tornado Watch is in effect for central and northeast Maryland from Prince Georges County to Cecil Counties until 9 PM. A Severe Thunderstorm Watch is in effect for the rest of the area during this time. Severe thunderstorms will be capable of producing damaging winds with wind gusts around 70 mph, large hail, and perhaps a tornado. .DAYS TWO THROUGH SEVEN...Sunday through Friday Severe thunderstorms with damaging wind gusts are possible Tuesday and Wednesday of next week. .SPOTTER INFORMATION STATEMENT... Spotters have been activated. MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508- 526-WVZ050>053-055-191830- Washington-Frederick-Carroll-Northern Baltimore- Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta- Rockingham-Shenandoah-Page-Warren-Clarke-Nelson-Albemarle-Greene- Madison-Rappahannock-Orange-Culpeper-Northern Fauquier- Southern Fauquier-Western Loudoun-Eastern Loudoun- Northern Virginia Blue Ridge-Central Virginia Blue Ridge- Northwest Prince William-Hampshire-Morgan-Berkeley-Jefferson- Hardy- 220 PM EDT Sat Jul 18 2026 This Hazardous Weather Outlook is for portions of eastern West Virginia, northern and central Virginia, and central and western Maryland. .DAY ONE...This Afternoon and Tonight A Tornado Watch is in effect for central Maryland until 9 PM. A Severe Thunderstorm Watch is in effect for the rest of the area until 9 PM this evening. Severe thunderstorms will be capable of producing damaging winds with wind gusts around 70 mph, large hail, and perhaps a tornado. .DAYS TWO THROUGH SEVEN...Sunday through Friday Severe thunderstorms with damaging wind gusts are possible Tuesday and Wednesday of next week. .SPOTTER INFORMATION STATEMENT... Spotters have been activated. MDZ501-502-509-510-VAZ503-504-WVZ501>506-191830- Extreme Western Allegany-Central and Eastern Allegany- Western Garrett-Eastern Garrett-Western Highland-Eastern Highland- Western Grant-Eastern Grant-Western Mineral-Eastern Mineral- Western Pendleton-Eastern Pendleton- 220 PM EDT Sat Jul 18 2026 This Hazardous Weather Outlook is for the Allegheny Front counties in western Maryland, eastern West Virginia, and Highland County Virginia. .DAY ONE...This Afternoon and Tonight A Severe Thunderstorm Watch is in effect until 9 PM. Multiple rounds of showers and thunderstorms are expected through this evening. Some thunderstorms may become severe, with damaging wind gusts being the primary threat. In addition, very heavy rain could result in isolated flash flooding. A Flood Watch is in effect for western MD and Mineral County WV through tonight. .DAYS TWO THROUGH SEVEN...Sunday through Friday Severe thunderstorms with damaging wind gusts are possible Tuesday and Wednesday of next week. .SPOTTER INFORMATION STATEMENT... Spotters have been activated.
In the hours before
Special weather statement, Jul 18, 10:51 AM EDT, 3 hours 42 minutes before
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</html>Special weather statement, Jul 18, 12:55 PM EDT, 1 hour 38 minutes before
Special Weather Statement
National Weather Service Baltimore MD/Washington DC
1255 PM EDT Sat Jul 18 2026
MDZ509-510-181745-
Eastern Garrett-Western Garrett-
1255 PM EDT Sat Jul 18 2026
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL GARRETT COUNTY...
At 1254 PM EDT, a strong thunderstorms were located over Preston
and Garrett Counties, moving east around 30 mph.
HAZARD...Wind gust 30 to 40 mph and lightning along with heavy
downpours that may lead to ponding of water on roadways.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Mountain Lake Park, Oakland, Bittinger, Deer Park, Merrill, Hutton,
Jennings, Deep Creek Lake State Park, Swallow Falls State Park,
McHenry, Big Run State Park, New Germany, Piney Grove, and McComas
Beach.
This includes Interstate 68 in Maryland between mile markers 23 and
26.
&&
LAT...LON 3971 7902 3960 7900 3948 7907 3947 7910
3946 7910 3946 7911 3945 7910 3944 7912
3943 7911 3941 7948 3956 7948
TIME...MOT...LOC 1654Z 259DEG 26KT 3953 7939
BJLLocal storm report, Jul 18, 1:52 PM EDT, 41 minutes before
Preliminary Local Storm Report
National Weather Service Baltimore MD/Washington DC
152 PM EDT Sat Jul 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0148 PM Tstm Wnd Dmg 3 SSW Madison 38.35N 78.28W
07/18/2026 Madison VA 911 Call Center
A tree was down along Route 29 and Gibbs Road.
&&
Event Number LWX2607364
BJLLocal storm report, Jul 18, 2:02 PM EDT, 31 minutes before
Preliminary Local Storm Report
National Weather Service Baltimore MD/Washington DC
202 PM EDT Sat Jul 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0145 PM Tstm Wnd Dmg Winchester 39.17N 78.17W
07/18/2026 Frederick VA Emergency Mngr
Several trees down in Winchester.
&&
Event Number LWX2607365
DHThe office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 2:16 AM EDT | Heat Advisory | LWX | Arlington, Fairfax, King George, Prince William, Spotsylvania, Stafford and 6 more | 16 hr |
| Jul 18, 2:30 AM EDT | Small Craft Advisory | LWX | 28 hr | |
| Jul 18, 6:36 AM EDT | Special Marine Warning | LWX | 54 min | |
| Jul 18, 9:23 AM EDT | Flood Watch | LWX | Arlington, Fairfax, Loudoun, City of Alexandria, City of Fairfax, City of Falls Church | 14 hr |
| Jul 18, 1:28 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Greene, Madison, Orange | 47 min |
| Jul 18, 1:39 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Frederick, City of Winchester | 66 min |
| Jul 18, 2:12 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Loudoun | 33 min |
| Jul 18, 2:16 PM EDT | Tornado Warning | LWX | Loudoun | 17 min |
| Jul 18, 2:24 PM EDT | Severe Thunderstorm Warning | LWX | Albemarle, Greene, Madison, Orange, City of Charlottesville | 36 min |
| Jul 18, 2:26 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 49 min |
| Jul 18, 2:41 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 28 min |
| Jul 18, 2:47 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Fauquier, Loudoun, Prince William, City of Manassas, City of Manassas Park | 43 min |
| Jul 18, 2:54 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier, Orange, Spotsylvania, Stafford, City of Fredericksburg | 20 min |
| Jul 18, 2:55 PM EDT | Special Marine Warning | LWX | 95 min | |
| Jul 18, 3:00 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 49 min |
| Jul 18, 3:01 PM EDT | Severe Thunderstorm Warning | LWX | Orange, Spotsylvania, Stafford, City of Fredericksburg | 44 min |
| Jul 18, 3:20 PM EDT | Severe Thunderstorm Warning | LWX | Arlington, Fairfax, City of Fairfax, City of Falls Church | 25 min |
| Jul 18, 3:26 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jul 18, 3:27 PM EDT | Special Marine Warning | LWX | 63 min | |
| Jul 18, 3:38 PM EDT | Special Weather Statement | LWX | 37 min | |
| Jul 18, 3:45 PM EDT | Special Marine Warning | LWX | 60 min | |
| Jul 18, 3:47 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun, Prince William | 28 min |
| Jul 18, 3:48 PM EDT | Special Marine Warning | LWX | 58 min | |
| Jul 18, 3:58 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Loudoun, Prince William | 32 min |
| Jul 18, 4:04 PM EDT | Special Marine Warning | LWX | 56 min | |
| Jul 18, 4:44 PM EDT | Special Marine Warning | LWX | 61 min | |
| Jul 18, 4:45 PM EDT | Special Marine Warning | LWX | 60 min | |
| Jul 18, 4:53 PM EDT | Special Marine Warning | LWX | 90 min | |
| Jul 18, 5:11 PM EDT | Special Marine Warning | LWX | 64 min | |
| Jul 18, 5:35 PM EDT | Special Marine Warning | LWX | 55 min | |
| Jul 18, 5:37 PM EDT | Special Marine Warning | LWX | 46 min | |
| Jul 18, 5:58 PM EDT | Special Marine Warning | LWX | 84 min | |
| Jul 18, 6:25 PM EDT | Special Marine Warning | LWX | 57 min | |
| Jul 18, 3:25 AM EDT | Special Weather Statement | LWX | Garrett | 35 min |
| Jul 18, 4:27 AM EDT | Special Weather Statement | LWX | Garrett | 33 min |
| Jul 18, 4:37 AM EDT | Severe Thunderstorm Warning | LWX | Garrett | 23 min |
| Jul 18, 10:51 AM EDT | Special Weather Statement | LWX | Garrett | 54 min |
| Jul 18, 11:41 AM EDT | Special Weather Statement | LWX | Garrett | 64 min |
| Jul 18, 12:08 PM EDT | Special Weather Statement | LWX | Garrett | 52 min |
| Jul 18, 12:55 PM EDT | Special Weather Statement | LWX | Garrett | 50 min |
| Jul 18, 1:55 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 50 min |
| Jul 18, 2:34 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 41 min |
| Jul 18, 2:39 PM EDT | Special Weather Statement | LWX | Garrett | 66 min |
| Jul 18, 3:14 PM EDT | Flash Flood Warning | LWX | Frederick | 92 min |
| Jul 18, 3:29 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Howard, City of Baltimore | 31 min |
| Jul 18, 3:37 PM EDT | Severe Thunderstorm Warning | LWX | Cecil, Harford | 23 min |
| Jul 18, 3:54 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 54 min |
| Jul 18, 4:01 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 29 min |
| Jul 18, 5:09 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 51 min |
Nearby
Tornado Warnings in Maryland, 2026Every tornado warning in 2026Tornadoes in 2026
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.