2 products issued by NWS for: Frederick MD
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 312 AM EDT Fri Jun 12 2026 MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508- 526-WVZ050>053-055-130715- 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- 312 AM EDT Fri Jun 12 2026 This Hazardous Weather Outlook is for portions of eastern West Virginia, northern and central Virginia, and central and western Maryland. .DAY ONE...Today and Tonight A Heat Advisory is in effect from 11 AM until 8 PM today for areas along and east of I-81. Heat index values will be around 100 to 105 degrees. Scattered thunderstorms are likely this afternoon and evening. Some of these storms may contain damaging wind gusts or large hail. .DAYS TWO THROUGH SEVEN...Saturday through Wednesday The chance of thunderstorms is increasing for Sunday afternoon and evening. Some of these storms may also be severe. .SPOTTER INFORMATION STATEMENT... Spotters may need to be activated for this afternoon/evening and Sunday. $$
Heat Advisory
URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1226 AM EDT Fri Jun 12 2026 MDZ004>006-503>507-VAZ036>040-050-051-053-055-056-501-502-505-506- 526-527-121230- /O.EXA.KLWX.HT.Y.0002.260612T1500Z-260613T0000Z/ Frederick-Carroll-Northern Baltimore-Northwest Montgomery-Central and Southeast Montgomery-Northwest Howard-Central and Southeast Howard-Northwest Harford-Nelson-Albemarle-Greene-Madison- Rappahannock-Orange-Culpeper-Fairfax-Stafford-Spotsylvania- Northern Fauquier-Southern Fauquier-Western Loudoun-Eastern Loudoun-Northwest Prince William-Central and Southeast Prince William/Manassas/Manassas Park- 1226 AM EDT Fri Jun 12 2026 ...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... * WHAT...Heat index values around 105F expected. * WHERE...Portions of central, north central, and northern Maryland and central, northern, and northwest Virginia. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. && $$