Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 44, NWS Gray, ME

July 5, 2020Cheshire County, Hillsborough County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 5, 2020, 7:55 PM EDT for Cheshire County, Hillsborough County, New Hampshire. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 5, 2020, 7:55 PM EDT (23:55 UTC)
Expired
Jul 5, 2020, 9:00 PM EDT
In force
65 min
Issued by
NWS Gray, ME
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cheshire County, NH, Hillsborough County, NH

The radar

The Boston radar (KBOX), 127 km from the middle of the area, began a volume at 23:56 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

Albany, NY (KALY), launched 12:00Z, 11.9 hours before the alert went out and 153 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2020-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2020-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2067 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Gray, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 2:09 PM EDTSpecial Weather StatementGYXOxford36 min
Jul 5, 3:57 PM EDTSpecial Weather StatementGYXSomerset33 min
Jul 5, 5:32 PM EDTSpecial Weather StatementGYXKennebec28 min
Jul 5, 1:55 PM EDTSpecial Weather StatementGYXCarroll35 min
Jul 5, 2:24 PM EDTSpecial Weather StatementGYXCarroll36 min
Jul 5, 2:29 PM EDTSpecial Weather StatementGYXCarroll31 min
Jul 5, 5:08 PM EDTSpecial Weather StatementGYXRockingham37 min
Jul 5, 6:21 PM EDTSpecial Weather StatementGYXSullivan39 min
Jul 5, 6:58 PM EDTSpecial Weather StatementGYXSullivan47 min
Jul 5, 7:18 PM EDTSevere Thunderstorm WarningGYXCheshire, Sullivan42 min
Jul 5, 7:29 PM EDTSpecial Weather StatementGYXHillsborough46 min
Jul 5, 7:48 PM EDTSpecial Weather StatementGYXSullivan27 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2020Every severe thunderstorm warning in 2020

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.