Alert archive / Delaware / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 10, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 8, 2008, 2:40 PM EST for Sussex County, Delaware. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 8, 2008, 2:40 PM EST (19:40 UTC)
- Expired
- Mar 8, 2008, 3:17 PM EST
- In force
- 37 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Sussex County, DE
The radar
The Dover AFB radar (KDOX), 25 km from the middle of the area, began a volume at 19:40 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 12:00Z, 7.7 hours before the alert went out and 81 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
- 83 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 455 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 182 m²/s²
- 0-3 km storm-relative helicity
- 218 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 081941
SVRPHI
DEC005-082045-
/O.NEW.KPHI.SV.W.0010.080308T1940Z-080308T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
240 PM EST SAT MAR 8 2008
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN SUSSEX COUNTY IN SOUTHERN DELAWARE...
* UNTIL 345 PM EST
* AT 240 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS. THESE STORMS WERE LOCATED ALONG A
LINE EXTENDING ACROSS WICOMICO COUNTY. THE STORMS WERE MOVING
NORTHEAST AT 45 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
SEAFORD BY 315 PM EST...
BRIDGEVILLE BY 320 PM EST...
LAUREL BY 330 PM EST...
MILFORD AND ELLENDALE BY 345 PM EST...
LAT...LON 3846 7570 3846 7571 3850 7571 3860 7571
3861 7572 3873 7571 3892 7543 3892 7541
3894 7539 3845 7541
TIME...MOT...LOC 1940Z 218DEG 20KT 3863 7577 3787 7582
$$
IOVINO1 follow-up statement
000
WWUS51 KPHI 082017
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
317 PM EST SAT MAR 8 2008
DEC005-082027-
/O.CAN.KPHI.SV.W.0010.000000T0000Z-080308T2045Z/
SUSSEX DE-
317 PM EST SAT MAR 8 2008
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN SUSSEX COUNTY IS
CANCELLED...
THE LINE OF SHOWERS AND THUNDERSTORMS HAS WEAKENED AND IT HAS MOVED
OUT OF WESTERN SUSSEX COUNTY. AS A RESULT, THE SEVERE THUNDERSTORM
WARNING HAS BEEN CANCELLED.
LAT...LON 3846 7570 3846 7571 3850 7571 3860 7571
3861 7572 3873 7571 3892 7543 3892 7541
3894 7539 3845 7541
TIME...MOT...LOC 2016Z 218DEG 20KT 3879 7561 3803 7566
$$
IOVINOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 4:40 AM EST | Wind Advisory | PHI | Kent, New Castle, Sussex | 27 hr |
| Mar 8, 12:03 PM EST | Flash Flood Warning | PHI | New Castle | 4 hr |
| Mar 8, 2:50 PM EST | River Flood Warning | PHI | New Castle | 3 hr |
| Mar 8, 3:58 PM EST | High Wind Warning | PHI | New Castle | 6 hr |
| Mar 8, 5:22 PM EST | Severe Thunderstorm Warning | PHI | New Castle | 23 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2008Every severe thunderstorm warning in 2008
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.