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Weather Briefing for The 2013 Presidential Inauguration

Weather Briefing for The 2013 Presidential Inauguration. NOAA National Weather Service Baltimore/Washington Weather Forecast Office January 12, 2013 Chris Strong Warning Coordination Meteorologist. Outline. Weather Hazards Forecast Overview Forecast Tables and Graphs

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Weather Briefing for The 2013 Presidential Inauguration

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  1. Weather BriefingforThe 2013 Presidential Inauguration NOAA National Weather Service Baltimore/Washington Weather Forecast Office January 12, 2013 Chris Strong Warning Coordination Meteorologist

  2. Outline • Weather Hazards • Forecast Overview • Forecast Tables and Graphs • Reagan National Airport TAF • Illumination Data • Plume Modeling • Web Page • Briefing Schedule

  3. Weather Hazardsthrough Inauguration Dayfor Washington, D.C. • Gusty winds late Monday • wind gusts 15-20 kts • Small Craft Advisory may be needed for the Potomac

  4. Surface Analysis0900 UTC Sat Jan 17

  5. Forecast Pressure/FrontsValid 0000 UTC Mon Jan 19 2009

  6. Forecast Surface PressureGFS ModelValid 1200 UTC Mon Jan 19 2009 Fri 12Z 16 Jan 2009 Model Run Sat 17 06Z Jan 2009 Model Run

  7. Forecast Overviewfor Washington, D.C. • Through tonight • High confidence • Sunny sky through this morning, high clouds increasing Saturday afternoon • High temperature this afternoon 23 F • Low temperature Sunday morning 20 F • Very cold, otherwise no significant weather • Sunday/Sunday Night • Moderate confidence • Lowering clouds during the day Sunday • Chance of light snow in late afternoon, becoming likely Sunday night • Some light accumulation possible • A bit milder. Afternoon high mid 30s; nighttime low in the upper 20s

  8. Forecast Overviewfor Washington, D.C. • Monday/Monday Night • Moderate confidence • Decreasing clouds • Brisk wind 15-25 mph gusts • Cold, with high in the low 30s • Low in the lower 20s • Tuesday – Inauguration Day • Moderate confidence • Colder than normal, with high temperature in the low-to-mid 30s • Wind Chill temperatures in the high teens to low 20s • Slight chance of snow shower

  9. Weather Element Forecast

  10. Weather Element Forecast (cont.)

  11. KDCA TAFTerminal Forecast for Reagan National Airport KDCA 171120Z 1712/1812 VRB04KT P6SM FEW250 FM171700 18007KT P6SM BKN150 FM180200 18007KT P6SM BKN060

  12. Illumination

  13. Effects and Actions Description (g/m3) Extent Area Population No guidelines specified. Possibly contaminated area. Use to confirm with monitoring surveys. >1.00E-5 0.2km 0.01 km2 280 No guidelines specified. Possibly contaminated area. Use to confirm with monitoring surveys. >1.00E-6 1.1km 0.2 km2 156,000 No guidelines specified. Possibly contaminated area. Use to confirm with monitoring surveys. >1.00E-7 3.9km 2.2 km2 355,000 Areas and counts in the table are cumulative. Population Source = LandScanUSA10. Official Use Only 24 hr forecast of sample smoke plot Automated Report - Demonstration 1 Hr Avg Air Conc. at 01/20/2009 13:00:00 EST Effects or contamination from January 20, 2009 12:00 EST to January 20, 2009 13:00 EST at or near ground level. Release Location: 38.895845 N, 77.027910 W Material: particulate Generated On: January 19, 2009 15:17 UTC Model: ADAPT/LODI Comments: Hypothetical release 01/20/2009 12:00:00 EST for 4 hr gridded met Map Size: 4.5 km by 4.5 km Id: Production2.rcE37016.rcC1 NARAC Operations: ( onDuty Assessor ); narac@llnl.gov; 925-424-6465 Requested by: {IMAAC Operations Coordinator; IMAAC; 925-424-6465} Approved by: {IMAAC Operations; IMAAC} Official Use Only

  14. NOAA/NWS Baltimore/Washington Weather Forecast Office Homepage http://www.weather.gov/washington

  15. Briefing Schedule • T-9 days: Sat Jan 12 1000 LT (Local Time) (24 hours of 1-hourly elements for Sun. dress rehearsal) • T-7 days: Mon Jan 14 1500 LT (6-hourly elements through Inauguration Monday) • T-4 days: Thu Jan 17 1500 LT • T-3 days: Fri Jan 18 1500 LT (hourly [1st 24 hours] & 3-hourly elements) • T-2 days: Sat Jan 19 1500 LT • T-1.5 Day: Sat Jan 19 2200 LT • T-1 Day: Sun Jan 20 1500 LT (hourly elements) • T-14 hours: Sun Jan 20 2200 LT • T-12 hours: Mon Jan 21 0000 LT • T-9 hours: Mon Jan 21 0300 LT • T-6 hours: Mon Jan 21 0600 LT • T-3 hours: Mon Jan 21 0900 LT • T-1 hour: Mon Jan 21 1100 LT • T+2 hour: Mon Jan 21 1400 LT • T+5 hour: Mon Jan 21 1700 LT • Other times / dates as needed or requested

  16. Next Scheduled Briefing 20:00 UTC / 3:00 PM EST Sat 17 Jan 2013Thank you for your participation!

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