Alert archive / New Hampshire / Flash Flood Warnings in 2012
Flash Flood Warning 13, NWS Gray, ME
NWS Gray, ME issued this flash flood warning at Aug 16, 2012, 4:23 AM EDT for 5 counties in New Hampshire; York County, Maine. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2012, 4:23 AM EDT (08:23 UTC)
- Expired
- Aug 16, 2012, 7:30 AM EDT
- In force
- 3 hr
- Issued by
- NWS Gray, ME
- Area
- Storm-based polygon
- Flood severity
- None
Counties York County, ME, Belknap County, NH, Carroll County, NH, Merrimack County, NH, Rockingham County, NH, Strafford County, NH
The radar
The Portland,ME radar (KGYX), 102 km from the middle of the area, began a volume at 08:24 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
Gray, ME (KGYX), launched 00:00Z, 8.4 hours before the alert went out and 102 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
- 572 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 742 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
314
WGUS51 KGYX 160823
FFWGYX
MEC031-NHC001-003-013-015-017-161130-
/O.NEW.KGYX.FF.W.0013.120816T0823Z-120816T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GRAY ME
423 AM EDT THU AUG 16 2012
THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EASTERN BELKNAP COUNTY IN CENTRAL NEW HAMPSHIRE...
STRAFFORD COUNTY IN CENTRAL NEW HAMPSHIRE...
EASTERN MERRIMACK COUNTY IN CENTRAL NEW HAMPSHIRE...
SOUTHEASTERN CARROLL COUNTY IN NORTHERN NEW HAMPSHIRE...
ROCKINGHAM COUNTY IN SOUTHERN NEW HAMPSHIRE...
YORK COUNTY IN SOUTHWEST MAINE...
* UNTIL 730 AM EDT
* AT 419 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM NUMEROUS THUNDERSTORMS OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WHITE LAKE
STATE PARK...PAWTUCKAWAY STATE PARK...BEAR BROOK STATE PARK...
WATERBORO...SPRINGVALE...SOUTH ELIOT...SOUTH BERWICK...SANFORD...
LEBANON...KEZAR FALLS...HOLLIS...CORNISH...BUXTON...BERWICK...
ALFRED...WOLFEBORO...SUNCOOK...SOMERSWORTH...ROCHESTER...OSSIPEE...
NORTHWOOD...NEWINGTON...LOUDON...HOOKSETT...GILMANTON...
FARMINGTON...EPSOM...EFFINGHAM...DURHAM...DOVER...CONCORD...
BARRINGTON...BARNSTEAD AND ALTON
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE
WARNED AREA.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 4274 7125 4283 7144 4293 7146 4295 7139
4300 7139 4306 7153 4305 7164 4313 7166
4385 7125 4383 7099 4379 7097 4381 7078
4374 7065 4370 7066 4364 7046 4360 7048
4287 7095 4280 7107 4280 7117 4273 7118
$$
HANES1 follow-up statement
486
WGUS71 KGYX 161133
FFSGYX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
733 AM EDT THU AUG 16 2012
MEC031-NHC001-003-013-015-017-161143-
/O.EXP.KGYX.FF.W.0013.000000T0000Z-120816T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BELKNAP NH-STRAFFORD NH-MERRIMACK NH-CARROLL NH-ROCKINGHAM NH-YORK ME-
733 AM EDT THU AUG 16 2012
...THE FLASH FLOOD WARNING HAS EXPIRED FOR YORK...ROCKINGHAM...
SOUTHEASTERN CARROLL...EASTERN MERRIMACK...STRAFFORD AND EASTERN
BELKNAP COUNTIES...
PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 4274 7125 4283 7144 4293 7146 4295 7139
4300 7139 4306 7153 4305 7164 4313 7166
4385 7125 4383 7099 4379 7097 4381 7078
4374 7065 4370 7066 4364 7046 4360 7048
4287 7095 4280 7107 4280 7117 4273 7118
$$
HANESThe office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 3:09 AM EDT | Areal Flood Advisory | GYX | Rockingham, Strafford | 4 hr |
| Aug 16, 3:14 AM EDT | Areal Flood Advisory | GYX | Androscoggin, Kennebec, Knox, Lincoln, Sagadahoc, Waldo | 6 hr |
| Aug 16, 5:56 AM EDT | Flash Flood Warning | GYX | Androscoggin, Cumberland, Franklin, Kennebec, Oxford, Somerset | 3 hr |
| Aug 16, 10:20 AM EDT | Areal Flood Advisory | GYX | Kennebec, Knox, Lincoln, Somerset, Waldo | 3 hr |
| Aug 16, 10:37 AM EDT | Areal Flood Advisory | GYX | Franklin, Somerset | 4 hr |
Nearby
Flash Flood Warnings in New Hampshire, 2012Flash Flood Warnings in Maine, 2012Every flash flood warning in 2012
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.