Alert archive / Maryland / Red Flag Warnings in 2011
Red Flag Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this red flag warning at Feb 14, 2011, 9:33 AM EST for 4 counties in Maryland; Kent County, Sussex County, Delaware. It took effect at Feb 14, 2011, 11:00 AM EST. It was in force for 6 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 14, 2011, 9:33 AM EST (14:33 UTC)
- In effect from
- Feb 14, 2011, 11:00 AM EST
- Expired
- Feb 14, 2011, 5:00 PM EST
- In force
- 6 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 14:35 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 2.6 hours before the alert went out and 62 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
- 2460 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
460 WWUS81 KPHI 141433 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 933 AM EST MON FEB 14 2011 DEZ002>004-MDZ012-015-019-020-142200- /O.NEW.KPHI.FW.W.0001.110214T1600Z-110214T2200Z/ KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT- CAROLINE- 933 AM EST MON FEB 14 2011 ...RED FLAG WARNING IN EFFECT UNTIL 5 PM EST THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON. * AREA AFFECTED: A PORTION OF MARYLAND'S EASTERN SHORE AND THE SOUTHERN TWO THIRDS OF DELAWARE. * TIMING: MAINLY FOR THE PERIOD NOON THROUGH 4 PM. * WIND: WEST SOUTHWEST GUSTS WILL INCREASE TO BETWEEN 30 AND 40 MPH DURING MIDDAY THEN SHIFT TO WEST NORTHWEST DURING MID AFTERNOON WITH GUSTS TO 45 MPH. * HUMIDITY: IS FORECAST TO LOWER TO BETWEEN 22 AND 30 PERCENT THIS AFTERNOON. * TEMPERATURES WILL RISE GENERALLY INTO THE 60S. * FUEL MOISTURE: FINE SURFACE FUELS ARE DRYING RAPIDLY DESPITE PREVIOUSLY WET GROUND. * IMPACTS: THIS WARNING INDICATES THE POTENTIAL FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP. * OUTLOOK: THERE MAY BE A NEED FOR A FIRE WEATHER WATCH FOR TUESDAY AFTERNOON AS NORTHWEST WINDS WILL GUST IN EXCESS OF 20 MPH DURING THE DAY TUESDAY AND HUMIDITY IS CURRENTLY FORECAST TO LOWER BELOW 30 PERCENT. THIS WILL BE RECONSIDERED FOR THE 330 PM ISSUANCE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ DRAG
2 follow-up statements
991 WWUS81 KPHI 142042 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 342 PM EST MON FEB 14 2011 DEZ002>004-MDZ012-015-019-020-142200- /O.CON.KPHI.FW.W.0001.000000T0000Z-110214T2200Z/ KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT- CAROLINE- 342 PM EST MON FEB 14 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM EST THIS AFTERNOON. * AREA AFFECTED: A PORTION OF MARYLAND'S EASTERN SHORE AND THE SOUTHERN TWO THIRDS OF DELAWARE. * TIMING: THROUGH 5 PM. * WIND: WEST NORTHWEST GUSTS BETWEEN 25 AND 35 MPH HAVE OCCURRED THIS AFTERNOON. * HUMIDITY: LOWERED TO NEAR 20 PERCENT DURING MID AFTERNOON. * TEMPERATURES: WERE IN THE 60S. * FUEL MOISTURE: FINE SURFACE FUELS WERE DRYING RAPIDLY DESPITE PREVIOUSLY WET GROUND. * IMPACTS: THIS WARNING INDICATES THE POTENTIAL FOR RAPID SPREAD IF UNCONTROLLED FIRES DEVELOP. * OUTLOOK: THERE MAY BE A NEED FOR A RED FLAG WARNING TUESDAY BETWEEN 11 AM AND 4 PM AS NORTHWEST WINDS WILL GUST IN EXCESS OF 20 MPH DURING THE DAY TUESDAY AND HUMIDITY IS CURRENTLY FORECAST TO LOWER BELOW 30 PERCENT. THIS WILL BE RECONSIDERED WITH THE VARIOUS AGENCIES IN THE TUESDAY MORNING ISSUANCE'S. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ DRAG
725 WWUS81 KPHI 142201 RFWPHI URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 501 PM EST MON FEB 14 2011 DEZ002>004-MDZ012-015-019-020-142315- /O.EXP.KPHI.FW.W.0001.000000T0000Z-110214T2200Z/ KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT- CAROLINE- 501 PM EST MON FEB 14 2011 ...RED FLAG WARNING HAS EXPIRED... THE RED FLAG WARNING IS NO LONGER IN EFFECT. $$ IOVINO
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 14, 3:11 AM EST | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 23 hr |
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.