1 dense fog, as filed by the National Weather Service.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before the first event at May 23, 10:16 AM EST, 2 hours 29 minutes earlier.
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</html>MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-231900- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 1242 PM EDT FRI MAY 23 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN PENNSYLVANIA EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA AND GARRETT COUNTY MARYLAND. .DAY ONE...THIS AFTERNOON THROUGH TONIGHT A SLIGHT RISK OF SEVERE THUNDERSTORMS EXISTS FROM THIS AFTERNOON THROUGH TONIGHT FOR WESTERN PENNSYLVANIA...EAST CENTRAL OHIO... EXTREME NORTHERN WEST VIRGINIA AND GARRETT COUNTY MARYLAND. CITIES THAT MAY BE AFFECTED INCLUDE FRANKLIN...BEAVER FALLS...LATROBE... WHEELING...PITTSBURGH...MORGANTOWN...ZANESVILLE AND OAKLAND, MARYLAND. THE MAIN THREAT FROM THESE STORMS WILL BE HAIL...STRONG GUSTY WINDS AND HEAVY RAIN AT TIMES. URBAN AREAS AND THE TYPICAL POOR DRAINAGE AREAS MAY SEE SOME WATER BUILD UP IN SPOTS IF HEAVY RAIN PERSISTS OR FALLS IN A SHORT AMOUNT OF TIME. .DAYS TWO THROUGH SEVEN... A WIDESPREAD RAINFALL WITH THE THREAT FOR SOME LOCALIZED HEAVY RAINS WILL CONTINUE THROUGH THE MORNING HOURS ON SATURDAY...WHEN THE RAINS SHOULD TAPER OFF. OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED.
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</html>1 dense fog. Local standard time, as filed.
Interstate 68 on Big Savage Mountain was the site of a 90-vehicle pile up in dense fog. The accident was 200 yards long. It killed 2 people and injured 100. Survivors reported visibility was near zero.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2003Every state in 2003This day in weather historyWarnings in Maryland, May 2003
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 5356404.