Alert archive / Maryland / Red Flag Warnings in 2011
Red Flag Warning 2, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Feb 15, 2011, 3:10 AM EST for 4 counties in Maryland; Kent County, Sussex County, Delaware. It took effect at Feb 15, 2011, 11:00 AM EST. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 15, 2011, 3:10 AM EST (08:10 UTC)
- In effect from
- Feb 15, 2011, 11:00 AM EST
- Expired
- Feb 15, 2011, 3:48 PM EST
- In force
- 5 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Kent County, DE, Sussex County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 37 km from the middle of the area, began a volume at 08:15 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 nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 8.2 hours before the alert went out and 119 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2250 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -99 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
214 WWUS81 KPHI 150810 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 310 AM EST TUE FEB 15 2011 DEZ002>004-MDZ012-015-019-020-152200- /O.NEW.KPHI.FW.W.0002.110215T1600Z-110215T2200Z/ KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT- CAROLINE- 310 AM EST TUE FEB 15 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM EST THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 5 PM EST THIS AFTERNOON. * AREAS AFFECTED: A PORTION OF THE EASTERN SHORE OF MARYLAND AND THE SOUTHERN TWO THIRDS OF DELAWARE * TIMING: FROM 1100 AM TO 500 PM. * WIND: WEST TO NORTHWEST WINDS WILL GUST TO 35 MPH THIS MORNING...AND TO 25 MPH AT TIMES THIS AFTERNOON. * HUMIDITY: MINIMUM RELATIVE HUMIDITY VALUES ARE EXPECTED TO DROP TO NEAR 25 PERCENT THIS AFTERNOON. * IMPACTS: BECAUSE OF METEOROLOGICAL CONDITIONS...THE POTENTIAL EXISTS FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF GUSTY WINDS...LOW RELATIVE HUMIDITY...DRY ANTECEDENT CONDITIONS WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
1 follow-up statement
113 WWUS81 KPHI 152048 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 348 PM EST TUE FEB 15 2011 DEZ002>004-MDZ012-015-019-020-152200- /O.CAN.KPHI.FW.W.0002.000000T0000Z-110215T2200Z/ KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT- CAROLINE- 348 PM EST TUE FEB 15 2011 ...RED FLAG WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE RED FLAG WARNING FOR A PORTION OF NORTHEAST MARYLAND AND THE SOUTHERN TWO THIRDS OF DELAWARE. WINDS HAVE DIMINISHED AND RAPID FIRE DANGER SPREAD POTENTIAL IS DECREASING TO NORMAL VALUES. THE NEXT CHANCE FOR RED FLAG CONDITIONS MAY BE THIS COMING SATURDAY FEBRUARY 19TH. $$ DRAG
Nearby
Red Flag Warnings in Maryland, 2011Red Flag Warnings in Delaware, 2011Every red flag warning in 2011
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.