Maryland, 2000

Heat in Maryland, June 10 to 11, 2000

June 10 to 11, 2000 · NWS LWX · 12 events in 12 counties and zones

High pressure in combination with sunny skies caused afternoon temperatures to reach into the upper 80s to middle 90s on the 10th and 11th. Dew points reached into the lower 70s creating heat indices in the middle 90s to lower 100s.

Where it happened

Every event with a place to put it; 9 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
12

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.

What happened

The episode as NWS LWX wrote it up.

High pressure in combination with sunny skies caused afternoon temperatures to reach into the upper 80s to middle 90s on the 10th and 11th. Dew points reached into the lower 70s creating heat indices in the middle 90s to lower 100s. Service stations across the state reported a total of 1300 cars that had to be towed and serviced for overheated engines on the 10th. The air quality over the Washington D.C. metropolitan area dropped into the Code Red category during the period. Normal high temperatures across the area for the 2nd week of June are in the middle 80s. A cold front moved through the region on the 12th, bringing and end to the hot weather.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

12 heat. Local standard time, as filed.

Heat, Montgomery

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Montgomery forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

Heat, Howard

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Howard forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

Heat, Allegany

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Allegany forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

Heat, Washington

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Washington forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.604, -77.814 (the zone’s center; the record gives no point)

Heat, Frederick

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Frederick forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.472, -77.398 (the zone’s center; the record gives no point)

Heat, Northern Baltimore

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Northern Baltimore forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.443, -76.616 (the zone’s center; the record gives no point)

Heat, Southern Baltimore / Baltimore (C)

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Southern Baltimore / Baltimore (C) forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.367, -76.614 (the zone’s center; the record gives no point)

Heat, Charles

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Charles forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
38.474, -77.013 (the zone’s center; the record gives no point)

Heat, Calvert

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Calvert forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
38.535, -76.531 (the zone’s center; the record gives no point)

Heat, St. Mary'S

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
St. Mary'S forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
38.216, -76.529 (the zone’s center; the record gives no point)

Heat, Prince Georges

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Prince Georges forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
38.830, -76.847 (the zone’s center; the record gives no point)

Heat, Anne Arundel

When
June 10, 8:00 AM EST to June 11, 6:00 PM EST
Where
Anne Arundel forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
38.994, -76.568 (the zone’s center; the record gives no point)

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Maryland in 2000Every state in 2000This day in weather historyWarnings in Maryland, June 2000

Sources

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 2026-09-24. Each event’s entry at NCEI: 5153664, 5153665, 5153666, 5153667, 5153668, 5153669, 5153670, 5154075, 5154076, 5154077, 5154078, 5154079.